Air-heated non-combustible electronic cigarettes and their temperature control methods

Abstract

This invention discloses an air-heated heated non-combustible electronic cigarette and its temperature control method. The heated non-combustible electronic cigarette includes an air heating element disposed in the air intake direction of the heating chamber and an auxiliary heating element disposed around the heating chamber. The temperature control method includes a preheating step: detecting and determining whether the first current temperature of the air heating element is greater than or equal to a cold / hot state temperature threshold; if not, controlling the auxiliary heating element and the air heating element to heat up immediately according to the cold state preheating process until they reach their respective target preheating temperatures; if so, controlling the auxiliary heating element to heat up immediately according to the hot state preheating process while the air heating element heats up after a first delay until they reach their respective target preheating temperatures. Compared with the prior art, this invention delays the heating of the air heating element when the electronic cigarette is in a hot state to prevent the air heating element from preheating for too long and causing the local air temperature to become too high, thus burning the tobacco cartridge. This results in more uniform heating and a better flavor in the heated non-combustible electronic cigarette of this invention.

Description

Technical Field

[0001] This invention relates to the field of electronic cigarettes, and more particularly to temperature control of air-heated non-combustible electronic cigarettes. Background Technology

[0002] Traditional heating technology involves the heater directly contacting the cigarette to heat aerosol and mist products. However, this traditional heating technology makes the heating element prone to breakage and difficult to clean after prolonged use.

[0003] To address this, existing technology employs an air-heating method where the cigarette only receives heat from the air for heating. The heater is located at the bottom of the cigarette, eliminating the possibility of breakage and eliminating the need for cleaning. However, because the heater is located at the bottom of the cigarette and does not contact it, this type of air-heated electronic cigarette suffers from low heating efficiency and is prone to uneven heating.

[0004] Referring to CN 117397877 A, an aerosol generating device using airflow heating is disclosed. In addition to the aforementioned airflow heating component positioned upstream of the aerosol generating product, a heat-insulating component is also provided within the receiving cavity containing the aerosol generating product. This heat-insulating component absorbs heat to maintain the temperature of the heating cavity. While this electronic cigarette improves heating efficiency to some extent, it still cannot solve the problem of uneven heating in electronic cigarettes, and the heating efficiency remains limited.

[0005] To address this, patent CN 107095343 A discloses a heating method for an electronic cigarette device. The device has a second heating device positioned in the air intake direction of its heating chamber, and a first heating device positioned on the outer wall of the tobacco core. Before smoking, the first and second heating devices are rapidly preheated to reach the desired smoking temperature quickly and sustainably. While this method achieves heating efficiency, its control, although aiming to ensure the first and second heating devices reach the target temperature within a certain time, actually involves directly clamping a fixed voltage across the two devices for a preset time to raise their temperature. However, the initial temperature of an electronic cigarette often varies during use, especially when used again after several minutes or tens of minutes. The second heating device inside the electronic cigarette is often still overheated. Directly applying the method described in the patent often results in overheating of the second heating device, burning the tobacco and negatively impacting the smoking experience. Even if heating is controlled by stopping when the target temperature is reached, it is easy for the second heating device to take too long to reach the target temperature due to a large difference in the time it takes for the first and second heating devices to reach the target temperature. This can create localized high-temperature areas in the heating chamber of the second heating device, resulting in uneven heating of the tobacco during subsequent smoking, with some tobacco overheating, which affects the user experience.

[0006] Therefore, there is an urgent need for an air-heated, non-combustible electronic cigarette that can solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a temperature control method for air-heated non-combustible electronic cigarettes, which results in uniform heating and a good taste.

[0008] To achieve the above objectives, the present invention provides a temperature control method for an air-heated, non-combustible electronic cigarette. The electronic cigarette includes an air heating element disposed in the air intake direction of the heating chamber and an auxiliary heating element disposed around the heating chamber. The heating chamber is used to insert a cartridge. The air heating element heats the gas to be introduced into the heating chamber, and the auxiliary heating element heats the gas surrounding the heating chamber. The temperature control method includes a preheating step: detecting a first current temperature of the air heating element and comparing the first current temperature of the air heating element with a cold / hot state temperature threshold; if the first current temperature does not exceed the cold / hot state temperature threshold, controlling the heating of the auxiliary heating element and the air heating element according to a cold-state preheating process; if the first current temperature exceeds the cold / hot state temperature threshold, controlling the heating of the auxiliary heating element and the air heating element according to a cold-state preheating process; if the first current temperature exceeds the cold / hot state temperature threshold, controlling the heating of the auxiliary heating element and the air heating element according to a cold-state preheating process. The temperature threshold is controlled according to the hot preheating process to control the heating of the auxiliary heating element and the air heating element; in the cold preheating process, the auxiliary heating element and the air heating element are controlled to heat up immediately until they reach their respective target preheating temperatures, so that the auxiliary heating element starts to heat the heating chamber, and the air heating element heats the gas to be entered into the heating chamber. The target preheating temperature includes a first target preheating temperature corresponding to the air heating element and a second target preheating temperature corresponding to the auxiliary heating element; in the hot preheating process, the auxiliary heating element is controlled to heat up immediately until it reaches the second target preheating temperature to heat the heating chamber, and the air heating element is controlled to heat up after a first delay until it reaches the first target preheating temperature to heat the gas to be entered into the heating chamber.

[0009] Preferably, the first duration is determined based on the temperature difference between the first current temperature of the air heater and a preset cold / hot state temperature threshold. The first duration t1 = (T1' - Ts) / R, where R is the heating rate of the air heater at full power output in a cold state, Ts is the preset cold / hot state temperature threshold, and T1' is the first current temperature of the air heater. This scheme ensures that the air heater reaches the target preheating temperature consistently, reaching the target preset temperature at the required time, resulting in good preheating stability.

[0010] Specifically, Ts is 150℃.

[0011] Preferably, controlling the heating of the auxiliary heating element and the air heating element specifically involves: calculating a first temperature difference between the first current temperature and the first target preheating temperature; adjusting the heating power of the air heating element in real time based on the first temperature difference, so that the air heating element reaches the first target preheating temperature when the current time is less than or equal to a second time interval. This ensures that the auxiliary heating element and the air heating element can accurately reach the target temperature when the second time interval is approaching or less than the second time interval; calculating a second temperature difference between the second current temperature of the auxiliary heating element and the second target preheating temperature; and adjusting the heating power of the auxiliary heating element in real time based on the second temperature difference, so that the auxiliary heating element reaches the second target preheating temperature when the current time is less than or equal to the second time interval. This scheme achieves real-time feedback control of the heating power, ensuring stable preheating time during inhalation, preventing localized overheating or insufficient heating time of the air in the heating chamber or air heating element, and further ensuring the inhalation experience.

[0012] Preferably, when the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature within a second time interval of less than or equal to the current time, the smaller the second temperature difference and the first temperature difference, the smaller the heating power of the auxiliary heating element and the air heating element. This scheme can prevent the auxiliary heating element and the air heating element from overheating.

[0013] Specifically, when the second temperature difference and the first temperature difference are greater than or equal to the preset temperature difference, the auxiliary heating element and the air heating element operate in full-power heating mode; when the second temperature difference and the first temperature difference are less than the preset temperature difference, the auxiliary heating element and the air heating element operate in first-power heating mode; when the first current temperature and the second current temperature reach the corresponding target preheating temperature, the auxiliary heating element and the air heating element operate in second-power heating mode or pause heating, wherein the heating power of the second-power heating mode is less than the heating power of the first-power heating mode, and the heating power of the first-power heating mode is less than the heating power of the full-power heating mode.

[0014] More specifically, the heating power of the first power heating mode is 40% to 60% of the heating power of the full power heating mode. The heating power of the second power heating mode is 20% to 30% of the heating power of the full power heating mode.

[0015] Preferably, the second duration is a preset duration; or, the second duration is the longest duration among the heating times required by the electronic cigarette based on the current temperature and the target preheating temperature for the air heating element and the auxiliary heating element.

[0016] Preferably, after the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature respectively, the auxiliary heating element and the air heating element are controlled to maintain at the corresponding second target preheating temperature and the first target preheating temperature for a preset third duration.

[0017] Preferably, the temperature control method further includes a temperature control step during smoking: after detecting smoking or entering the smoking stage, controlling the temperature of the auxiliary heating element to maintain at a second smoking temperature, and controlling the temperature of the air heating element to maintain at a first smoking temperature.

[0018] More preferably, after the fourth duration of continuous smoking or after the number of puffs is greater than or equal to the first preset number of puffs, it indicates that the tobacco cartridge in the heating chamber has been activated to the middle and later stages. The temperature of the auxiliary heating element is controlled to rise by a preset temperature based on the first smoking temperature, so that the tobacco cartridge in the heating chamber is activated more quickly when it is activated to the middle and later stages.

[0019] Specifically, the preset temperature is 10-20℃, the fourth duration is 60% to 80% of the duration required for continuous smoking of one cartridge, and the first preset number of puffs is 60% to 80% of the number of puffs required for continuous smoking of one cartridge.

[0020] More preferably, when the tobacco cartridge in the heating chamber is activated to the middle or later stage, the temperature of the air heating element is also controlled to be maintained at or below the first smoking temperature. This prevents the tobacco cartridge from overheating and burning due to excessive heat received at the front stage after being activated to the middle or later stage, thus avoiding the generation of polluting smoke.

[0021] Specifically, when smoking continues for a fifth duration or the number of puffs is greater than or equal to the second preset number of puffs, it means that the tobacco cartridge in the heating chamber has been fully activated, and the air heating element and auxiliary heating element are controlled to stop heating. The fourth duration is less than the fifth duration.

[0022] Specifically, the second target preheating temperature is greater than the first target preheating temperature, the second target preheating temperature is greater than the first smoke temperature, and the first smoke temperature is greater than the second smoke temperature.

[0023] Because the air heating element is typically installed deep within the e-cigarette and separated from the e-cigarette shell by a well-sealed and heat-insulating sleeve, when the smoking ends, the heat dissipation of the air heating element is passively confined within its insulated space, hindering its own heat dissipation and causing the air heating element to remain at a high temperature for a prolonged period. Meanwhile, the auxiliary heating element is located outside the heating chamber, having a large contact area with the outside environment, making it prone to heat loss. Therefore, the air-heated non-combustible e-cigarette of this invention determines whether the e-cigarette is in a cold or hot state during preheating by detecting the temperature of the air heating element. If the e-cigarette is in a hot state, the heating of the air heating element is delayed to prevent it from reaching the target temperature too early and accumulating excessive heat, thus affecting the taste. Therefore, this invention can prevent localized overheating of the air heating element during preheating, resulting in good heating uniformity, good taste, and a better user experience.

[0024] This invention also provides a temperature control method for a gas-heated, non-combustible electronic cigarette. The non-combustible electronic cigarette includes an air heating element disposed in the air inlet direction of the heating chamber and an auxiliary heating element disposed around the heating chamber. The heating chamber is used to insert a cartridge. The air heating element heats the gas to be introduced into the heating chamber, and the auxiliary heating element heats the gas around the heating chamber. The method includes a preheating step of preheating before powering on or before smoking. The preheating step includes: detecting a first current temperature of the air heating element; calculating a first duration t1 based on the temperature difference ΔT between the first current temperature T1' of the air heating element and a preset cold / hot state temperature threshold Ts, where ΔT = T1' – Ts. The larger the temperature difference ΔT, the longer the first duration t1. When ΔT is negative, the first duration t1 is 0. Controlling the auxiliary heating element to heat up immediately until a second target preheating temperature is reached to heat the heating chamber; and controlling the air heating element to heat up after a first duration until the first target preheating temperature is reached to heat the gas to be introduced into the heating chamber.

[0025] Preferably, the first duration t1 = (T1' - Ts) / R, where R is the heating rate of the air heater at full power output in a cold state, Ts is a preset cold / hot temperature threshold, and T1' is the first current temperature of the air heater. When T1' - Ts is less than or equal to 0, the first duration is 0.

[0026] Preferably, controlling the heating of the auxiliary heating element and the air heating element specifically involves: calculating a first temperature difference between the first current temperature and the first target preheating temperature; adjusting the heating power of the air heating element in real time based on the first temperature difference, so that the air heating element reaches the first target preheating temperature when the current time is less than or equal to a second time interval. This ensures that the auxiliary heating element and the air heating element can accurately reach the target temperature when the second time interval is approaching or less than the second time interval; calculating a second temperature difference between the second current temperature of the auxiliary heating element and the second target preheating temperature; and adjusting the heating power of the auxiliary heating element in real time based on the second temperature difference, so that the auxiliary heating element reaches the second target preheating temperature when the current time is less than or equal to the second time interval. This scheme achieves real-time feedback control of the heating power, ensuring stable preheating time during inhalation, preventing localized overheating or insufficient heating time of the air in the heating chamber or air heating element, and further ensuring the inhalation experience.

[0027] Preferably, when the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature within a second time interval of less than or equal to the current time, the smaller the second temperature difference and the first temperature difference, the smaller the heating power of the auxiliary heating element and the air heating element. This scheme can prevent the auxiliary heating element and the air heating element from overheating.

[0028] Specifically, when the second temperature difference and the first temperature difference are greater than or equal to the preset temperature difference, the auxiliary heating element and the air heating element operate in full-power heating mode; when the second temperature difference and the first temperature difference are less than the preset temperature difference, the auxiliary heating element and the air heating element operate in first-power heating mode; when the first current temperature and the second current temperature reach the corresponding target preheating temperature, the auxiliary heating element and the air heating element operate in second-power heating mode or pause heating, wherein the heating power of the second-power heating mode is less than the heating power of the first-power heating mode, and the heating power of the first-power heating mode is less than the heating power of the full-power heating mode.

[0029] More specifically, the heating power of the first power heating mode is 40% to 60% of the heating power of the full power heating mode. The heating power of the second power heating mode is 20% to 30% of the heating power of the full power heating mode.

[0030] Preferably, the second duration is a preset duration; or, the second duration is the longest duration among the heating times required by the electronic cigarette based on the current temperature and the target preheating temperature for the air heating element and the auxiliary heating element.

[0031] Preferably, after the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature respectively, the auxiliary heating element and the air heating element are controlled to maintain at the corresponding second target preheating temperature and the first target preheating temperature for a preset third duration.

[0032] Preferably, the temperature control method further includes a temperature control step during smoking: after detecting smoking or entering the smoking stage, controlling the temperature of the auxiliary heating element to maintain at a second smoking temperature, and controlling the temperature of the air heating element to maintain at a first smoking temperature.

[0033] More preferably, after the fourth duration of continuous smoking or after the number of puffs is greater than or equal to the first preset number of puffs, the temperature of the auxiliary heating element is controlled to rise by a preset temperature based on the first smoking temperature, so that the tobacco cartridge in the heating chamber is activated more quickly when it burns to the middle and later stages.

[0034] Specifically, the preset temperature is 10-20℃, the fourth duration is 60% to 80% of the duration required for continuous smoking of one cartridge, and the first preset number of puffs is 60% to 80% of the number of puffs required for continuous smoking of one cartridge.

[0035] More preferably, after a fourth duration of continuous smoking or after the number of puffs is greater than or equal to a first preset number of puffs, the temperature of the air heater is controlled to be maintained at a first smoking temperature or decrease based on the first smoking temperature. This prevents the tobacco cartridge from overheating and burning due to excessive heat received in the early stage after being activated to the middle or later stages, thus preventing the production of polluting smoke.

[0036] Specifically, when smoking continues for a fifth duration or the number of puffs is greater than or equal to a second preset number of puffs, the air heater and auxiliary heater are controlled to stop heating, and the fourth duration is less than the fifth duration.

[0037] Specifically, the second target preheating temperature is greater than the first target preheating temperature, the second target preheating temperature is greater than the first smoke temperature, and the first smoke temperature is greater than the second smoke temperature.

[0038] Preferably, a sealing ring is provided between the mounting cavity where the air heating element is located and the heating cavity, so that the control can only flow through the air heating element and then into the heating cavity.

[0039] The present invention also provides an air-heated non-combustible electronic cigarette, comprising a housing, a power supply module, a heating component, and a control module installed within the housing. The housing has a heating cavity. The power supply module supplies power to the heating component, enabling the heating component to heat the heating cavity. The heating component includes an air heating element and an auxiliary heating element. The air heating element is disposed in the air intake direction of the heating cavity and heats the air to be entering the heating cavity. The auxiliary heating element is disposed around the side of the heating cavity and heats and keeps the heating cavity warm. The heating cavity is used to insert a cigarette cartridge. The control module adjusts the heating power of the air heating element and the auxiliary heating element according to the temperature control method of the air-heated non-combustible electronic cigarette described above.

[0040] Compared with the prior art, the air-heated non-combustible electronic cigarette of the present invention detects the temperature of the air heating element during preheating, calculates a first duration based on the current temperature of the air heating element, and then controls the auxiliary heating element to heat immediately, while the air heating element heats up after the first duration. This allows the auxiliary heating element and the air heating element to achieve staggered heating, preventing the air heating element from reaching the target temperature too early and accumulating too much heat, which would affect the taste. Therefore, the present invention can prevent the air heating element from overheating locally during preheating, resulting in good heating uniformity, good taste, and a good user experience. Attached Figure Description

[0041] Figure 1 This is a structural diagram of the heated non-combustible electronic cigarette of the present invention.

[0042] Figure 2 This is a structural diagram of the heating component in the heated non-combustible electronic cigarette of the present invention.

[0043] Figure 3 This is a circuit block diagram of the heated non-combustible electronic cigarette of the present invention.

[0044] Figure 4 This is a temperature change diagram of the heating component in the heated non-combustible electronic cigarette of the present invention during the cold heating process.

[0045] Figure 5 This is a temperature change diagram of the heating component in the heated non-combustible electronic cigarette of the present invention during the hot heating process.

[0046] Figure 6 This is a flowchart of the temperature control method for an air-heated, non-combustible electronic cigarette according to the present invention. Detailed Implementation

[0047] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0048] This invention discloses a temperature control method for an air-heated non-combustible electronic cigarette.

[0049] This air-heated, non-combustible electronic cigarette includes a housing, a power supply module installed within the housing, a heating component, and a control module 9. (See reference...) Figure 1 The housing includes a main housing 3, a bottom cover 8, an upper cover 2, and a lower cover 4. The main housing 3 is a hollow housing containing a power supply module. The bottom cover 8 is installed at the lower opening of the main housing 3. The upper cover 2 and the lower cover 4 are fastened together to form a cover, which closes to the upper opening of the main housing. The control module 9 includes a memory, a processor, and one or more operating programs stored in the memory. The processor executes the operating programs to implement the temperature control method for the air-heated non-combustible electronic cigarette described above.

[0050] refer to Figure 2 The housing has a heating chamber 21, and the power supply module supplies power to the heating component so that the heating component heats the heating chamber 21. The heating chamber 21 is used for inserting the smoke cartridge 1.

[0051] refer to Figure 3 The heating assembly includes an air heater 12 and an auxiliary heater 6. The air heater 12 has several heating holes for air to pass through, each including an inlet and an outlet. One end of the inlet communicates with the outside via an air passage, and the other end communicates with the heating chamber 21 via an air passage, so that when smoking, air is heated through the heating holes of the air heater 12 and flows into the heating chamber 21. The auxiliary heater 6 surrounds the side of the heating chamber 21 to heat and maintain its temperature. A temperature detection element 16 detects the temperature at the auxiliary heater 6.

[0052] refer to Figure 2 The auxiliary heating element 6 is a film-thickness heating tube, which is annular and forms the cavity wall of the heating chamber 21. The resistance of the auxiliary heating element 6 ranges from 0.4 to 1.0 ohms. The resistance of the air heating element also ranges from 0.4 to 1.0 ohms.

[0053] refer to Figure 2 The heated non-combustible electronic cigarette also includes a heat insulation sleeve 5 and a heat-resistant component 14. The heat insulation sleeve 5 is mounted on the housing and forms a heat insulation cavity therein. The air heating component 12 is installed in the heat insulation cavity, and the heat insulation cavity provides heat insulation for the air heating component 12.

[0054] Specifically, the air heating element 12 is installed at the bottom of the heat insulation cavity, the heat-resistant element 14 is installed above the air heating element 12, and the heating cavity 21 is formed in the area of ​​the heat insulation cavity above the heat-resistant element 14. The auxiliary heating element 6 is installed on the heat insulation sleeve 5 and forms the inner wall of the heating cavity 21, so that the auxiliary heating element 6 can effectively assist in heating and heat preservation of the tobacco cartridge 1 in the heating cavity 21. The heat insulation sleeve 5 is installed on the lower cover 4. The temperature detection element 16 is located inside the heat insulation sleeve 5 near the auxiliary heating element 6 to detect the temperature of the auxiliary heating element 6.

[0055] refer to Figure 2 The heat-resistant component 14 is a sealing component, installed between the air heater 12 and the heating chamber 21, ensuring that air can only flow into the heating chamber 21 through the heating holes in the air heater 12. Specifically, the lower side of the sealing component forms a mounting groove 141 that can accommodate at least a portion of the air heater 12. The bottom of the mounting groove 141 is a sealing partition with an air passage. The upper side of the sealing component forms an annular mounting platform 142 for the auxiliary heating component 6 to surround. The sealing component connects the air heater 12 and the auxiliary heating component 6 together, allowing the air during smoking to pass only through the air holes of the air heater 12 without passing through the auxiliary heating component 6. The sealing component can be made of silicone.

[0056] refer to Figures 1 to 3 The housing contains a smoke airflow channel. The inlet of the smoke airflow channel is located on the housing, and the outlet is located at the inlet of the heating chamber 21. After the tobacco cartridge 1 is inserted into the heating chamber 21, the air in the smoke airflow channel enters through the inlet on the housing, passes through the air inlet of the air heater 12, is heated in the air heater 12, and is then output from the air outlet of the air heater 12 to the tobacco cartridge 1 in the heating chamber 21. The heated air heats the tobacco in the tobacco cartridge 1 to produce smoke, and the air carrying the smoke is then drawn out from the top of the tobacco cartridge 1 through the air passage in the tobacco cartridge 1. The entire smoke airflow channel is sealed along the entire route except for the inlet and outlet, so that the air entering from the inlet must pass through the air heater 12 before entering the tobacco cartridge 1 in the heating chamber 21.

[0057] In this embodiment, the inner wall of the heating cavity 21 is recessed with an annular mounting area for mounting the auxiliary heating element 6. The longitudinal cross-section of the annular mounting area is frustum-shaped.

[0058] Preferably, the heated non-combustible electronic cigarette also includes a heat insulation component 13, which is located outside the heat insulation sleeve 5. In this embodiment, the smoke gas flow channel is formed outside the auxiliary heating component 6 and located between the auxiliary heating component 6 and the heat insulation component 13.

[0059] refer to Figure 1The air heating element 12 and the auxiliary heating element 6 are electrically connected to the power supply module via cables.

[0060] The air heating element 12 is columnar, with its air inlet located on its side and its air outlet located on its top. The air inlet penetrates the side of the air heating element. The air heating element 12 can be a ceramic or metal heating element. Multiple air outlets are evenly distributed on the top of the air heating element 12. Alternatively, an irregular honeycomb-like porous structure can be formed in the air heating element 12 to create several irregular air channels for heating the air.

[0061] refer to Figure 4 The power supply module includes a battery storage module 71, a battery management module, and a drive module. The battery storage module 71 is a battery pack that stores electrical energy. The battery management module 71 manages the charging and discharging of the battery storage module 71. The drive module converts the electrical energy of the battery storage module 71 into a corresponding voltage and performs DC / DC conversion to power the heating component. The control module 9 controls the operation of the battery management module 71 and the drive module, and can control the voltage and / or current supplied by the power management module to the heating component to control the heating power of the heating component, thereby controlling the heating rate of the heating component. The drive module includes a first drive module 91 and a second drive module 92. The first drive module 91 is electrically connected to the air heater 12 and controls the air heater 12 to heat the air to be entered into the heating chamber 21. The second drive module 92 is electrically connected to the auxiliary heater 6 and controls the auxiliary heater 6 to heat the heating chamber 21.

[0062] During operation, the control module 9 controls the first drive module 91 and the second drive module 92 to work with corresponding heating power, so that the air heating element 12 heats the air at the bottom of the heating chamber 21 at a corresponding heating rate. The heated air flows into the heating chamber 21 to heat the tobacco cartridge 1 in the heating chamber 21. At the same time, the auxiliary heating element 6 provides auxiliary heating and heat preservation for the tobacco cartridge 1 from all sides of the heating chamber 21. When smoking, the tobacco cartridge 1 in the heating chamber 21 can quickly heat up to the corresponding temperature to produce smoke.

[0063] refer to Figures 4 to 6 The temperature control method for the air-heated non-combustible electronic cigarette includes a preheating step of preheating before powering on or before smoking, and a temperature control step after smoking or entering the smoking stage. The preheating step includes steps S1 to S5.

[0064] refer to Figures 4 to 6S1, detect the current temperature of the air heater 12 to obtain a first current temperature T1', and compare the first current temperature T1' with the size of the cold and hot state temperature threshold Ts.

[0065] Specifically, after powering on, the system first determines whether the e-cigarette is in a cold or hot state. A cold state indicates the e-cigarette has not been heated for a long time, resulting in a relatively high temperature inside the insulation sleeve 5 (normal temperature). A hot state indicates the device has recently been heated, and the insulation sleeve 5 has not yet had time to dissipate heat, resulting in a high temperature and heat inside. Because the initial conditions for cold and hot states are different, it is necessary to differentiate between them during the preheating stage to form two heating methods. The determination method is to collect the initial temperature of the air heating element 12 before heating begins to determine whether the current smoking state is cold or hot. Since the air heating element 12 is located at the deepest part of the insulation sleeve 5, and the auxiliary heating element 6 passively maintains the air temperature, the air remaining at the innermost part still has a relatively high temperature, resulting in a slower heat dissipation due to the relatively small temperature difference between the air heating element 12 and the air. However, the auxiliary heating element 6, due to its large contact area with the tobacco cartridge 1 and the proximity of the air in the smoking airway to the outside air, experiences faster temperature loss. If heating stops, a large temperature difference will quickly form, leading to extremely rapid heat dissipation. Therefore, using the initial temperature parameter of the air heating element 12 to distinguish between cold and hot states is more accurate.

[0066] The system determines whether the device is in a cold or hot state by comparing the first current temperature T1' of the air heating element 12 with the cold / hot state temperature threshold Ts. The cold / hot state temperature threshold Ts can be 150 degrees Celsius, which is generally the temperature reached when the electronic cigarette is placed at room temperature for a preset time, such as 5 minutes, after use.

[0067] refer to Figures 4 to 6 S2, if the first current temperature T1' does not exceed the cold and hot state temperature threshold Ts (T1' < Ts), then the heating of the auxiliary heating element 6 and the air heating element 12 is controlled according to the cold state preheating process.

[0068] In the cold preheating process of S2, the auxiliary heating element 6 and the air heating element 12 are controlled to start heating until their temperatures reach the second target preheating temperature T2 and the first target preheating temperature T1, respectively.

[0069] refer to Figures 4 to 6 S3, if the first current temperature T1' exceeds the cold and hot state temperature threshold Ts (T1'≥Ts), then the heating of the auxiliary heating element 6 and the air heating element 12 is controlled according to the hot state preheating process.

[0070] In the hot preheating process described in S3, the auxiliary heating element 6 is controlled to immediately heat up to the target preheating temperature (second target preheating temperature T2) to heat the heating chamber 21, and the air heating element 12 is controlled to heat up to the target preheating temperature (first target preheating temperature T1) after a first time duration t1 to heat the gas to be entered into the heating chamber 21. That is, a staggered start-up strategy is adopted in the hot state to prevent local overheating of the air in the air heating element 12, thereby charring the tobacco cartridge 1 in the heating chamber 21.

[0071] The first duration t1 is determined based on the difference between the first current temperature T1' of the air heater and a preset cold / hot temperature threshold Ts. The first duration t1 = (T1' - Ts) / R, where R is the heating rate of the air heater 12 at full power output in a cold state, Ts is the preset cold / hot temperature threshold, and T1' is the first current temperature of the air heater 12. Alternatively, the first duration t1 can be a fixed value, such as 5 seconds.

[0072] Specifically, in steps S2 and S3, controlling the heating of the air heater 12 involves: calculating the first temperature difference ΔT1 between the first current temperature T1' of the air heater 12 and the first target preheating temperature T1, and adjusting the heating power of the air heater 12 according to the first temperature difference ΔT1, so that the air heater 12 reaches the first target preheating temperature T1 when the distance from the current time is less than or equal to the second time interval t1.

[0073] Specifically, in steps S2 and S3, controlling the heating of the auxiliary heating element 6 involves: detecting the current temperature of the auxiliary heating element 6 to obtain a second current temperature T2'; calculating the second temperature difference ΔT2 between the second current temperature T2' of the auxiliary heating element 6 and the second target preheating temperature T2; and adjusting the heating power of the auxiliary heating element 6 according to the second temperature difference ΔT2, so that the auxiliary heating element 6 reaches the second target preheating temperature T2 when the distance from the current time is less than or equal to the second time interval t2.

[0074] In this embodiment, the second target preheating temperature T2 is greater than the first target preheating temperature T1. T2 is equal to 395 degrees Celsius and T1 is equal to 340 degrees Celsius.

[0075] In this embodiment, the second duration t2 is a preset duration. The second duration t2 can be 18 seconds.

[0076] Of course, in other embodiments, the second duration t2 can also be determined based on the longest time taken for the air heater 12 and the auxiliary heater 6 to reach the target preheating temperature. For example, the time taken to reach the target preheating temperature can be calculated based on the first temperature difference ΔT1 and the maximum heating frequency of the air heater 12, and the time taken to reach the target preheating temperature can be calculated based on the second temperature difference ΔT2 and the maximum heating frequency of the auxiliary heater 6. The longest of the two durations is taken as the second duration t2. In fact, the synchronous arrival of the air heater 12 and the auxiliary heater 6 at the target preheating temperature means that their arrival time is between t2-δt and t2 from the current time, where δt is an allowable time difference range that can be between 1 and 3 seconds. This scheme allows the electronic cigarette to reach the target preheating temperature in the fastest time.

[0077] Specifically, when the auxiliary heating element 6 and the air heating element 12 reach the target preheating temperature after a second time t2, the second temperature difference ΔT2 and the first temperature difference ΔT1 are calculated in real time, and the heating power of the auxiliary heating element 6 and the air heating element 12 is adjusted in real time based on the second temperature difference ΔT2 and the first temperature difference ΔT1. Specifically, when the second temperature difference ΔT2 is greater than or equal to the preset temperature difference, the auxiliary heating element 6 operates in full-power heating mode. When the first temperature difference ΔT1 is greater than or equal to the preset temperature difference, the air heating element 12 operates in full-power heating mode. When the second temperature difference ΔT2 is less than the preset temperature difference, the auxiliary heating element 6 operates in first-power heating mode. When the first temperature difference ΔT1 is less than the preset temperature difference, the air heating element 12 operates in first-power heating mode. When the first current temperature T1' reaches the corresponding first target preheating temperature (first target preheating temperature ± error temperature range), the air heating element 12 operates in second-power heating mode (i.e., enters heat preservation mode) or pauses heating. When the second current temperature T2' reaches the corresponding second target preheating temperature (second target preheating temperature ± error temperature range), the auxiliary heating element 6 operates in second-power heating mode (i.e., enters heat preservation mode) or pauses heating. The heating power of the second-power heating mode is less than the heating power of the first-power heating mode, and the heating power of the first-power heating mode is less than the heating power of the full-power heating mode. The preset temperature difference is much greater than the error temperature range. The preset temperature differences corresponding to the first temperature difference ΔT1 and the second temperature difference ΔT2 can be the same or different.

[0078] For example, the second temperature difference is 10 degrees Celsius, and the error temperature range is 3 degrees Celsius. This means the second temperature difference and the first temperature difference are within a range of less than or equal to 3 degrees Celsius and greater than or equal to -3 degrees Celsius. In other words, when the first and second current temperatures reach the target preheating temperature ± the error temperature range, the system operates in the second power heating mode (i.e., enters the heat preservation mode) or heating is paused. The heating power of the first power heating mode is 40% to 60% of the heating power of the full power heating mode. The heating power of the second power heating mode is 20% to 30% of the heating power of the full power heating mode.

[0079] The temperature of the air heater 12 and the auxiliary heater 6 can be detected by the temperature detection element, or the temperature of the air heater 12 and the auxiliary heater 6 can be detected by the current impedance of the air heater 12 and the auxiliary heater 6.

[0080] refer to Figures 4 to 6 S4, after the auxiliary heating element 6 and the air heating element 12 reach the second target preheating temperature T2 and the first target preheating temperature T1 respectively, the auxiliary heating element 6 and the air heating element 12 are controlled to maintain at the corresponding second target preheating temperature T2 and first target preheating temperature T1 for a preset third time t3, thus completing the preheating of the electronic cigarette. The third time t3 is a preset fixed time, such as 11s.

[0081] After the preset period ends, the system can use lights or sounds to indicate to the user that they are ready to smoke after the preheating process is complete.

[0082] refer to Figures 4 to 6 The temperature control method further includes a temperature control step during smoking, specifically steps S5 to S7.

[0083] S5, after detecting smoking or entering the smoking stage, the temperature of the auxiliary heating element 6 is controlled to be maintained at the second smoking temperature T4, and the temperature of the air heating element 12 is controlled to be maintained at the first smoking temperature T3. After entering the smoking stage, the temperatures of the auxiliary heating element 6 and the air heating element 12 are controlled to be maintained at the corresponding smoking temperatures T4 and T3 for a smoking duration t0, which can be 105s.

[0084] S6, after smoking continues for a fourth duration t4 or after the number of puffs is greater than or equal to the first preset number of puffs P0, the temperature of the auxiliary heating element 6 is controlled to rise by a preset temperature δT0 based on the second smoking temperature T4, so that the tobacco cartridge 1 in the heating chamber 21 is activated more quickly when it reaches the middle and later stages. δT0 can be a value between 10 and 20 degrees Celsius. The fourth duration t4 is 60% to 80% of the time required for continuous smoking of one tobacco cartridge 1, representing that the tobacco cartridge 1 in the heating chamber 21 has been activated to the middle and later stages. The fourth duration t4 can be a value between 105 and 120 seconds, for example, 110 seconds. The first preset number of puffs P0 is 60% to 80% of the number of puffs required for continuous smoking of one tobacco cartridge 1, representing that the tobacco cartridge 1 in the heating chamber 21 has been activated to the middle and later stages.

[0085] In this process, when the tobacco cartridge 1 in the heating chamber 21 has been heated for a period of time and has been inhaled a certain number of times, the tobacco near the air heating element 12 and the auxiliary heating element 5 has been fully burned. If it is necessary to heat the tobacco in the middle part of the tobacco cartridge 1 at this point, it is necessary to improve the factors related to smoke output. These factors include the temperature of the hot air passing through the air heating element 12 combined with the temperature maintained by the auxiliary heating element 6 to produce smoke from the tobacco cartridge 1, i.e., increasing the temperature of either the auxiliary heating element 6 or the air heating element 12. However, because the temperature of the air heating element 12 is much higher than that of the auxiliary heating element 6, if the temperature of the air heating element 12 is further increased, the tobacco near it, which has already undergone sufficient combustion, will be further burned and charred, affecting the flavor. On the other hand, the auxiliary heating element 6, whose temperature is relatively low in the previous stage, will not char the tobacco near it even if its temperature is further increased, thus improving the conditions for smoke output. Therefore, to prevent charring of the front section of the tobacco cartridge 1 during heating, the temperature of the auxiliary heating element 6 is increased as the smoke enters the middle and later sections. This enhances the stimulation effect on the periphery of the middle section of the tobacco cartridge 1, allowing it to heat up quickly and preventing over-burning of the front section of the tobacco cartridge 1 before the middle section has fully heated and stimulated smoke. The auxiliary heating element 6 is arranged around the heating cavity 21, and it covers at least 80% of the area of ​​the tobacco cartridge 1 that carries the tobacco along the height direction of the tobacco cartridge 1.

[0086] Specifically, after a fourth duration t4 during continuous smoking or after the number of puffs is greater than or equal to a first preset number of puffs P0, the tobacco cartridge 1 in the heating chamber 21 is activated to the middle to later stage. The temperature of the air heater 12 is maintained at the first smoking temperature T3 or reduced by a preset temperature δT1. This preset temperature δT1 can be between 10 and 20 degrees Celsius, or it can increase linearly with time, so that the air heater 12 gradually decreases after the fourth duration t4 until heating stops. In this embodiment, t4 is 110 seconds.

[0087] S7. When the fifth smoking duration t5 is reached (to determine whether the smoking duration is greater than or equal to t5) or the number of puffs is greater than or equal to the second preset number of puffs (whether the number of puffs is greater than or equal to Pn), it represents that the cartridge 1 in the heating chamber 21 has been completely activated, and the air heating element 12 and the auxiliary heating element 6 are controlled to stop heating. In this embodiment, Pn is 17 puffs, and the number of puffs can be set according to actual needs. The fourth duration t4 is less than the fifth duration t5. In this embodiment, t5 is 150 s. P0 is less than Pn, and P0 can be taken as 12 puffs. The fifth duration t5 is equal to the duration required for continuous smoking. The second preset number of puffs is the number of puffs required for continuous smoking of one cartridge 1.

[0088] Specifically, the second target preheating temperature T2 is greater than the first target preheating temperature T1, the second target preheating temperature T2 is greater than the first smoking temperature T3, and the first smoking temperature T1 is greater than the second smoking temperature T4. Among them, the second target preheating temperature T2 > the first target preheating temperature T1 > the first smoking temperature T3 > the second smoking temperature T4. In this embodiment, the second target preheating temperature T2 is 395 °C, the first target preheating temperature T1 is 340 °C, the second smoking temperature T4 is 200 °C, and the first smoking temperature T3 is 310 °C.

[0089] The following is an example to illustrate the working process of the present invention:

[0090] After the user presses the start switch, the control module 9 collects in real time the current first current temperature T1 of the air heating element 12 located in the deepest part of the heat insulation structure, the heat-sealed area, or detects the current first current temperature T1 of the air heating element 12 based on the current impedance of the air heating element 12 before heating starts. According to the comparison result of the first current temperature T1 and the preset threshold temperature Ts (preferably 150 °C), the current cold and hot state of the device is determined:

[0091] If T1 < Ts, it is judged as the cold state, and the cold state preheating process is executed.

[0092] If T1 ≥ Ts, it is judged as the hot state, and the hot state preheating process is executed.

[0093] The control module 9 dynamically adjusts based on real-time feedback within the second duration t2 (preferably t2 = 18 seconds) to heat the air heating element 12 to the target preheating temperature: the first target preheating temperature T1 (preferably T1 = 340 °C); and the auxiliary heating element 6 to the target preheating temperature: the second target preheating temperature T2 (preferably T2 = 395 °C).

[0094] To ensure that the air heater 12 and the auxiliary heater 6 reach the corresponding first target preheating temperature T1 and second target preheating temperature T2 simultaneously at the end of T2, the control module 9 monitors the actual heating curve in real time. Based on the difference between the current temperature (second current temperature T2' and first current temperature T1') and the target preheating temperature (second target preheating temperature T2 and first target preheating temperature T1) (second temperature difference ΔT2 and first temperature difference ΔT1), the control module 9 adjusts the heating power of the auxiliary heater 6 and the air heater 12, extending or shortening the heating time to ensure they reach the target preset temperature within the required error range. If either the air heater 12 or the auxiliary heater 6 reaches the target preheating temperature first, the control module 9 switches to a constant temperature maintenance mode (operating at 20%–30% of the full power heating mode), and waits until the other air heater 12 or the auxiliary heater 6 reaches the target preheating temperature before proceeding to the next stage.

[0095] Once the air heater 12 and the auxiliary heater 6 both reach their corresponding first target preheating temperature T1 and second target preheating temperature T2, the control module 9 maintains the temperatures of the air heater 12 and the auxiliary heater 6 at the target preset temperature for a third duration t3, ensuring that the air passage within the air heater 12 in the front section of the heating chamber 21 and the smoke cartridge 1 in the heating chamber 21 are fully preheated. This third duration t3 is 11 seconds.

[0096] The simultaneous arrival of the air heating element 12 and the auxiliary heating element 6 at the target preset temperatures of 340℃ and 395℃ means that the air heating element 12 reaches T1±ΔT1 and the auxiliary heating element 6 reaches T2±ΔT2. In other words, the allowable error range between the arrival of the air heating element 12 and the auxiliary heating element 6 at the target preheating temperature can be the same or different. In this invention, the error ranges ΔT1 and ΔT2 are both ±3℃.

[0097] During inhalation, the electronic cigarette enters a stable heating phase (which can be maintained for 105 seconds): the air heating element 12 maintains a temperature of T4 = 310℃, continuing to heat the flowing air; the auxiliary heating element 12 maintains a temperature of T3 = 200℃ to maintain the temperature of the cigarette. During this process, the control module 9 makes small, automatic adjustments in real time based on the temperature difference between the second current temperature T2' of the auxiliary heating element 6 and the target smoking temperature T4, and the temperature difference between the first current temperature T1' of the air heating element 12 and the target smoking temperature T3, to cope with temperature fluctuations during inhalation.

[0098] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the scope of the present invention are still within the scope of the present invention.

Claims

1. A temperature control method for an air-heated, non-combustible electronic cigarette, the electronic cigarette comprising an air heating element disposed in the air inlet direction of a heating chamber, and an auxiliary heating element disposed around the heating chamber, the heating chamber being used to insert a cartridge, the air heating element heating the gas to be introduced into the heating chamber, and the auxiliary heating element heating the gas around the heating chamber, characterized in that: Including the preheating step: The first current temperature of the air heating element is detected and compared with the size of the cold and hot state temperature threshold. If the first current temperature does not exceed the cold and hot state temperature threshold, the heating of the auxiliary heating element and the air heating element is controlled according to the cold state preheating process. If the first current temperature exceeds the cold and hot state temperature threshold, the heating of the auxiliary heating element and the air heating element is controlled according to the hot state preheating process. In the cold preheating process, the auxiliary heating element and the air heating element are controlled to heat up immediately until they reach their respective target preheating temperatures, so that the auxiliary heating element starts to heat the heating chamber and the air heating element heats the gas to be entered into the heating chamber. The target preheating temperature includes a first target preheating temperature corresponding to the air heating element and a second target preheating temperature corresponding to the auxiliary heating element. In the hot preheating process, the auxiliary heating element is controlled to heat up immediately until it reaches the second target preheating temperature to heat the heating chamber, and the air heating element is controlled to heat up after a first delay until it reaches the first target preheating temperature to heat the gas to be entered into the heating chamber.

2. The temperature control method for air-heated non-combustible electronic cigarettes as described in claim 1, characterized in that: The first duration is determined based on the temperature difference between the first current temperature of the air heating element and the preset cold and hot state temperature threshold. The first duration t1 = (T1' - Ts) / R, where R is the heating rate of the air heating element when it is at full power output in the cold state, Ts is the preset cold and hot state temperature threshold, and T1' is the first current temperature of the air heating element.

3. A temperature control method for an air-heated, non-combustible electronic cigarette, wherein the non-combustible electronic cigarette includes an air heating element disposed in the air inlet direction of a heating chamber and an auxiliary heating element disposed around the heating chamber, the heating chamber being used to insert a cigarette cartridge, the air heating element heating the gas to be introduced into the heating chamber, and the auxiliary heating element heating the gas around the heating chamber, characterized in that: The preheating step includes a preheating process performed before powering on or before smoking, the preheating step comprising: The first current temperature of the air heating element is detected, and the first duration t1 is calculated based on the temperature difference ΔT between the first current temperature T1' of the air heating element and the preset cold and hot state temperature threshold Ts. ΔT = T1' – Ts. The larger the temperature difference ΔT is, the longer the first duration t1 is. When ΔT is negative, the first duration t1 takes the value of 0. The auxiliary heating element is controlled to heat up immediately until it reaches the second target preheating temperature to heat the heating chamber, and the air heating element is controlled to heat up after a first delay until it reaches the first target preheating temperature to heat the gas to be entered into the heating chamber.

4. The temperature control method for air-heated non-combustible electronic cigarettes as described in claim 3, characterized in that: The first duration t1 = (T1' - Ts) / R, where R is the heating rate of the air heater when it is operating at full power in a cold state, Ts is the preset cold and hot state temperature threshold, and T1' is the first current temperature of the air heater.

5. The temperature control method for an air-heated non-combustible electronic cigarette as described in any one of claims 1-4, characterized in that: The specific method for controlling the heating of the auxiliary heating element and the air heating element is as follows: calculate the first temperature difference between the first current temperature of the air heating element and the first target preheating temperature, and adjust the heating power of the air heating element in real time according to the first temperature difference, so that the air heating element reaches the first target preheating temperature when the distance from the current time is less than or equal to the second time interval. Calculate the second temperature difference between the second current temperature and the second target preheating temperature of the auxiliary heating element, and adjust the heating power of the auxiliary heating element in real time according to the second temperature difference so that the auxiliary heating element reaches the second target preheating temperature when the distance from the current time is less than or equal to the second time interval.

6. The temperature control method for air-heated non-combustible electronic cigarettes as described in claim 5, characterized in that: When the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature within a distance of less than or equal to the second time from the current moment, the smaller the second temperature difference and the first temperature difference, the smaller the heating power of the auxiliary heating element and the air heating element.

7. The temperature control method for air-heated non-combustible electronic cigarettes as described in claim 5, characterized in that: When the second temperature difference and the first temperature difference are greater than or equal to the preset temperature difference, the auxiliary heating element and the air heating element operate in full-power heating mode; when the second temperature difference and the first temperature difference are less than the preset temperature difference, the auxiliary heating element and the air heating element operate in first-power heating mode; when the first current temperature and the second current temperature reach the corresponding target preheating temperature, the auxiliary heating element and the air heating element operate in second-power heating mode or pause heating, wherein the heating power of the second-power heating mode is less than the heating power of the first-power heating mode, and the heating power of the first-power heating mode is less than the heating power of the full-power heating mode.

8. The temperature control method for air-heated non-combustible electronic cigarettes as described in claim 7, characterized in that: The heating power of the first power heating mode is 40% to 60% of the heating power of the full power heating mode, and the heating power of the second power heating mode is 20% to 30% of the heating power of the full power heating mode.

9. The temperature control method for an air-heated non-combustible electronic cigarette as described in claim 5, characterized in that: The second duration is a preset duration; or, The second duration is the longest duration among the heating times required by the electronic cigarette based on the current temperature and the target preheating temperature for the air heating element and the auxiliary heating element.

10. The temperature control method for an air-heated non-combustible electronic cigarette as described in any one of claims 1-4, characterized in that: After the auxiliary heating element and the air heating element reach the second target preheating temperature and the first target preheating temperature respectively, the auxiliary heating element and the air heating element are controlled to maintain at the corresponding second target preheating temperature and the first target preheating temperature for a preset third duration.

11. The temperature control method for an air-heated non-combustible electronic cigarette as described in any one of claims 1-4, characterized in that: It also includes a temperature control step during smoking, specifically including: after detecting smoking or entering the smoking stage, controlling the temperature of the auxiliary heating element to maintain at a second smoking temperature, and controlling the temperature of the air heating element to maintain at a first smoking temperature.

12. The temperature control method for an air-heated non-combustible electronic cigarette as described in any one of claims 11, characterized in that: After the fourth duration of continuous smoking or after the number of puffs is greater than or equal to the first preset number of puffs, it indicates that the tobacco cartridge in the heating chamber has been activated to the middle and later stages, and the temperature of the auxiliary heating element is controlled to rise by a preset temperature based on the second smoking temperature.

13. The temperature control method for an air-heated non-combustible electronic cigarette as described in claim 12, characterized in that: The preset temperature is 10-20℃, the fourth duration is 60% to 80% of the duration required for continuous smoking of one cartridge, and the first preset number of puffs is 60% to 80% of the number of puffs required for continuous smoking of one cartridge.

14. The temperature control method for an air-heated non-combustible electronic cigarette as described in claim 12, characterized in that: When the smoke cartridge in the heating chamber is activated to the middle and later stages, the temperature of the air heating element is also controlled to be maintained at the first smoking temperature or decrease based on the first smoking temperature.

15. The temperature control method for an air-heated non-combustible electronic cigarette as described in claim 12, characterized in that: When smoking continues for a fifth duration or the number of puffs is greater than or equal to the second preset number of puffs, it means that the tobacco cartridge in the heating chamber has been fully activated, and the air heating element and auxiliary heating element are controlled to stop heating. The fourth duration is less than the fifth duration.

16. An air-heated non-combustible electronic cigarette, comprising a housing, a power supply module, a heating component, and a control module installed within the housing, wherein the housing has a heating cavity, and the power supply module supplies power to the heating component to heat the heating cavity, characterized in that: The heating assembly includes an air heating element and an auxiliary heating element. The air heating element is disposed in the air intake direction of the heating chamber and heats the air to be entered into the heating chamber. The auxiliary heating element is disposed around the side of the heating chamber and heats and keeps the heating chamber warm. The heating chamber is used to insert a cigarette cartridge. The control module includes a memory, a processor, and one or more operating programs stored in the memory. The processor executes the operating programs to implement the temperature control method for air-heated non-combustible electronic cigarettes as described in any one of claims 1-4.

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