Temperature control method and apparatus, and computer-readable storage medium

Abstract

A temperature control method and apparatus, and a computer-readable storage medium. The temperature control method is applied to an aerosol generation apparatus, which comprises a microwave heating assembly. The temperature control method comprises: acquiring an actual stage of a current heating control period, wherein the heating control period comprises a first stage, a second stage and a third stage; acquiring, from a database by means of matching, a power value corresponding to the actual stage; and in the actual stage, supplying power to a microwave heating assembly on the basis of the corresponding power value. In the first stage, an aerosol generation product (9) can rapidly reach an aerosol generation temperature, thereby realizing rapid vaping; and in the second stage, not only can it be ensured that the aerosol generation product (9) does not burn or generate a health-hazardous aerosol product at a high temperature during vaping, but it can also be ensured that the aerosol generation product (9) is continuously heated to generate a certain amount of aerosol, thereby improving the uniformity of a temperature field, and ensuring the consistency between the vaping mouthfeel and the released flavor of aerosol.

Description

Temperature control method, device and computer-readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410092844.7, filed on January 22, 2024, entitled “Temperature Control Method, Device, and Computer-Readable Storage Medium,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of heating control technology, and in particular to a temperature control method, device, and computer-readable storage medium. Background Art

[0004] Currently, heated aerosol generating devices mostly use resistance, infrared, or electromagnetic heating. These devices contain at least one heating element. The device provides electricity to control the temperature of the heating element, which is then transferred to the aerosol matrix through contact heat transfer, reaching a temperature that continuously produces aerosol. However, the temperature difference between the heating element and the aerosol matrix causes coking reactions, which contaminate the heating element and make it difficult to clean, affecting the taste of the aerosol.

[0005] Related technologies have proposed a microwave heating device that uses a quarter-wavelength microwave resonant cavity to deliver microwave energy into the aerosol matrix. However, current microwave heating devices require a long preheating period after the heating process is initiated. Furthermore, the continuous heating process can easily cause the aerosol-generating product to remain above the aerosol generation temperature line for extended periods, leading to continuous aerosol production. This can lead to significant differences in aerosol composition and content between the first and last few puffs, resulting in significant variations in the puff's flavor.

[0006] Summary of the Invention

[0007] The present application provides a temperature control method, device and computer-readable storage medium to solve the problem of inconsistent taste before and after puffing when a microwave heating device heats an aerosol-generating product in the related art.

[0008] In a first aspect, the present application provides a temperature control method, which is applied to an aerosol generating device, wherein the aerosol generating device includes a microwave heating component, and the temperature control method includes: obtaining the actual stage of the current heating control cycle; wherein the heating control cycle includes a first stage, a second stage, and a third stage, the start time of the second stage is the end time of the first stage, and the start time of the third stage is the end time of the second stage; matching the power value corresponding to the actual stage from a database; wherein a first preset power value corresponding to the first stage is greater than a second preset power value corresponding to the second stage, and both the first preset power value and the second preset power value are greater than a preset power threshold, and the microwave heating component can heat the aerosol generating product to generate aerosol when the power of the preset power threshold is passed, and the power value corresponding to the third stage is 0; and supplying power to the microwave heating component according to the corresponding power value in the actual stage.

[0009] Optionally, the temperature control method further includes: in the third stage, obtaining the working state of the aerosol generating device; wherein the working state includes a keep-warm state and a standby state; judging whether the power supply condition of the microwave heating component is met according to the working state; if the working state is a keep-warm state, the power supply condition is met, and then power of a third preset power value is provided to the microwave heating component; wherein the third preset power value is less than the second preset power value; if the working state is a standby state, the power supply condition is not met, and then power of 0 is provided to the microwave heating component.

[0010] Optionally, obtaining the actual stage of the current heating control cycle includes: when a heating control signal is received, determining the actual stage of the current heating control cycle according to a signal type of the heating control signal.

[0011] Optionally, when a heating control signal is received, the actual stage of the current heating control cycle is determined according to the signal type of the heating control signal, including: when a start heating control signal is received, the current heating control cycle is determined to be in the first stage; when a continuous heating control signal is received, the current heating control cycle is determined to be in the second stage; when a stop heating control signal is received, the current heating control cycle is determined to be in the third stage.

[0012] Optionally, the temperature control method further includes: detecting the real-time heating temperature of the aerosol generating product; comparing the real-time heating temperature with a first preset temperature; and generating the continuous heating control signal when the real-time heating temperature is equal to the first preset temperature.

[0013] Optionally, the temperature control method further includes: controlling the detection device to detect user puffing behavior data; if it is determined according to the user puffing behavior data that the user's puffing state is a start puffing state, generating the start heating control signal; if it is determined according to the user's puffing behavior data that the user's puffing state is a stop puffing state, generating the stop heating control signal.

[0014] Optionally, the temperature control method further includes: detecting the executed heating time in real time during the execution of the second stage; and generating the stop heating control signal when the executed heating time reaches a preset time threshold.

[0015] Optionally, before obtaining the actual stage of the current heating control cycle, the method further includes: determining whether the current heating control cycle is a valid heating control cycle; if it is a valid heating control cycle, executing the step of obtaining the actual stage of the current heating control cycle.

[0016] Optionally, the determination of whether the current heating control cycle is a valid heating control cycle includes: obtaining the total number of valid heating control cycles corresponding to the aerosol generating product heated by the aerosol generating device; when the aerosol generating device is in working state, counting the heating control cycles to obtain the cumulative number of actual heating control cycles; comparing the cumulative number of actual heating control cycles with the total number of valid heating control cycles; and determining whether the current heating control cycle is a valid heating control cycle based on the comparison result; wherein, if the cumulative number of actual heating control cycles is less than or equal to the total number of valid heating control cycles, determining that the current heating control cycle is a valid heating control cycle.

[0017] The second aspect of the present application also provides an aerosol generating device, comprising: a power supply; a microwave heating component electrically connected to the power supply; a controller electrically connected to the power supply and the microwave heating component, wherein the controller uses the temperature control method described in any one of the above to control the heating temperature of the aerosol generating product.

[0018] Optionally, the aerosol generating device further includes a probe electrically connected to the microwave heating assembly, and a temperature sensor electrically connected to the controller and disposed on the probe.

[0019] Optionally, the aerosol generating device further comprises a detection component electrically connected to the controller, wherein the detection component is used to detect characteristic movements before inhalation.

[0020] The third aspect of the present application also provides a computer-readable storage medium, which stores one or more programs. The one or more programs can be executed by one or more controllers to implement the steps of the temperature control method as described in any one of the above.

[0021] According to the temperature control method, device, and computer-readable storage medium of the embodiments of the present application, by providing a first preset power value to the microwave heating component during a first phase to increase the temperature of the aerosol-generating article from an initial temperature to a first temperature, the aerosol-generating article can quickly reach the aerosol-generating temperature, enabling rapid puffing. In a second phase, the microwave heating component is provided with a second preset power value to maintain the temperature of the aerosol-generating article at a second temperature, and the aerosol-generating article can continuously generate aerosol at the second temperature. This ensures that the aerosol-generating article does not burn or produce high-temperature aerosol products that are harmful to health during puffing, while also ensuring that the aerosol-generating article is continuously heated to generate a certain amount of aerosol, improving the uniformity of the temperature field and ensuring the consistency of the aerosol's taste and release. Furthermore, by not supplying power to the microwave heating component during puffing intervals, power waste can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.

[0023] FIG1 is a schematic diagram of the basic flow of the temperature control method provided in an embodiment of the present application;

[0024] FIG2 is a schematic diagram of a detailed flow chart of a temperature control method provided in an embodiment of the present application;

[0025] FIG3 is a schematic diagram of a temperature curve of an aerosol generating article provided in an embodiment of the present application;

[0026] FIG4 is a structural block diagram of an embodiment of an aerosol generating device provided in an embodiment of the present application;

[0027] FIG5 is a structural block diagram of another embodiment of the aerosol generating device provided in an example of the present application.

[0028] In the accompanying drawings, each figure mark represents: 1. power supply; 2. radio frequency source; 3. controller; 4. resonator; 5. probe; 6. position sensor; 7. heating antenna; 8. air pressure sensor; 9. aerosol generating product. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0032] Example:

[0033] Referring to FIG. 1 , an embodiment of the present application provides a temperature control method for an aerosol generating device. The aerosol generating device includes a microwave heating component configured to emit microwaves when powered on. The microwaves couple to an aerosol generating article within the aerosol generating device and generate heat, thereby heating the aerosol generating article to generate an aerosol. The temperature control method includes the following steps:

[0034] Step S11: Obtain the actual stage of the current heating control cycle.

[0035] Specifically, the aerosol generating device is provided with multiple heating control cycles to heat an aerosol generating product, each heating control cycle includes a first stage, a second stage and a third stage, the start time of the second stage is the end time of the first stage, and the start time of the third stage is the end time of the second stage.

[0036] It should be understood that the first stage is the starting stage of the heating control cycle, the second stage is the middle stage of the heating control cycle, and the third stage is the ending stage of the heating control cycle.

[0037] Step S12: Match the power value corresponding to the actual stage from the database.

[0038] Specifically, the power values ​​corresponding to the first, second, and third stages of the heating control cycle are different. The database contains power values ​​corresponding to each stage, and the power value parameters in the database are mapped one-to-one to each stage of the heating control cycle. A first preset power value corresponding to the first stage is greater than a second preset power value corresponding to the second stage, and both the first and second preset power values ​​are greater than a preset power threshold. The microwave heating assembly is capable of heating the aerosol-generating article to generate aerosol when supplied with power at the preset power threshold. The power value corresponding to the third stage is a third preset power value, which is less than the second preset power value.

[0039] It should be noted that the first preset power value and the second preset power value may or may not be associated with the time of the corresponding stage. When the first preset power value is associated with the time of the first stage, the magnitude of the first preset power value will change over time. For example, the first preset power value in the first half of the first stage is greater than the first preset power value in the second half; the same applies to the second preset power value. When the first preset power value is not associated with the time of the first stage, the magnitude of the first preset power value in the first stage is constant; the same applies to the second preset power value. The third preset power value can be 0 or not 0.

[0040] It should be understood that when the first preset power value and the second preset power value are set to be associated with the moment of the corresponding stage, it is conducive to achieving more precise temperature control; when the first preset power value and the second preset power value are set to be unassociated with the moment of the corresponding stage, the control difficulty can be reduced.

[0041] Step S13: supplying power to the microwave heating component according to the corresponding power value at the actual stage.

[0042] Specifically, in the first stage, power of a first preset power value is provided to the microwave heating component to increase the temperature of the aerosol-generating product from the initial temperature to the first temperature; wherein the first preset power value is relatively large, and the power size is in a positive linear relationship with the microwave power emitted by the microwave heating component, that is, the greater the power, the greater the microwave power emitted by the microwave heating component, so that the aerosol-generating product can quickly reach the first temperature in the first stage, thereby realizing rapid generation of aerosol.

[0043] During the second stage, a second preset power value is supplied to the microwave heating assembly to maintain the temperature of the aerosol-generating article at a second temperature; wherein, because the second preset power value is less than the first preset power value, the second temperature is less than the first temperature. Since the aerosol-generating article is maintained at the second temperature during the second stage, continuous aerosol generation can be ensured during the puffing process.

[0044] In the third stage, power of a third predetermined power value is supplied to the microwave heating assembly to cool the temperature of the aerosol-generating article to a third temperature.

[0045] It should be noted that the first and second stages together constitute a single puff, and the third stage is the puff interval. When a power greater than a preset power threshold is applied to the microwave heating assembly, the aerosol-generating article can be heated to generate an aerosol. Since both the first and second preset power values ​​are greater than the preset power threshold, the aerosol-generating article will be heated to a temperature between the first and second temperatures to generate an aerosol, i.e., aerosol will be generated in both the first and second stages. When the temperature of the aerosol-generating article exceeds the first temperature, the aerosol-generating article may produce aerosol products that are hazardous to health.

[0046] In this embodiment, during a first phase, the microwave heating assembly is supplied with a first preset power value to increase the temperature of the aerosol-generating article from an initial temperature to a first temperature. This allows the aerosol-generating article to quickly reach an aerosol-generating temperature, enabling rapid puffing. During a second phase, the microwave heating assembly is supplied with a second preset power value to maintain the temperature of the aerosol-generating article at a second temperature. The aerosol-generating article can continuously generate aerosol at the second temperature, thereby ensuring that the aerosol-generating article does not burn or produce high-temperature aerosol products that could be harmful to health during puffing. Furthermore, the aerosol-generating article is continuously heated to generate a certain amount of aerosol, ensuring a consistent aerosol taste and release. Furthermore, power is not supplied to the microwave heating assembly between puffs, thereby avoiding power waste.

[0047] It should be noted that since the temperature control method provided in this embodiment is applied to an aerosol generating device using microwave heating, compared with the prior art method of generating aerosols by heating an aerosol generating product with a heating element, no preheating is required before puffing and aerosols can be generated quickly, and no condensation of evaporated gas will occur between puffs, thereby avoiding heating and contamination of the device, preventing damage to the device, and reducing the taste of the puff.

[0048] In one embodiment, before step S11, the following steps are further performed:

[0049] Step S10: Determine whether the current heating control cycle is a valid heating control cycle; if it is a valid heating control cycle, proceed to the next step.

[0050] Specifically, different aerosol-generating products have different possible puff times, and the possible puff times are set according to the atomization volume and shape of the aerosol-generating product. The possible puff times are generally between 12 and 14. If the aerosol-generating product is puffed for more than the possible puff times, no aerosol will be generated. Therefore, the total number of effective heating control cycles for heating the aerosol-generating product to generate aerosol is the same as the possible puff times. For example, if the possible puff times of type A aerosol-generating product is 12, the corresponding total number of effective heating control cycles is 12. If the possible puff times of type B aerosol-generating product is 14, the corresponding total number of effective heating control cycles is 14.

[0051] It should be noted that if the current heating control cycle is a valid heating control cycle, it indicates that heating the aerosol generating product within the heating control cycle can generate aerosol, and thus the heating control cycle is executed; if the current heating control cycle is not a valid heating control cycle, it indicates that heating the aerosol generating product within the heating control cycle will not generate aerosol, and thus heating is stopped; at the same time, the aerosol generating device is controlled to issue a prompt to replace the aerosol generating product, thereby reminding the user to replace the aerosol generating product in time to avoid wasting electricity to heat the aerosol generating product again; moreover, it can also avoid the inability to inhale aerosol during puffing, thereby improving the puffing experience. The following examples are provided for explanation:

[0052] The total number of valid heating control cycles is 14. When it is determined that the current heating control cycle is the fifth, the heating control cycle is executed; when it is determined that the current heating control cycle is the fifteenth, a prompt to replace the aerosol generating product is issued, wherein the prompt can be a light prompt or a sound prompt, the light prompt can be a flashing red light, and the sound prompt can be a beep.

[0053] In some embodiments, the above step S10 further includes the following steps:

[0054] Step S101: Obtain the total number of effective heating control cycles corresponding to the aerosol generating product heated by the aerosol generating device.

[0055] Specifically, the total number of effective heating control cycles of the aerosol generating product can be obtained through user input or by detecting the aerosol generating product. For example, three buttons A, B, and C can be set on the aerosol generating product. When button A is triggered, the total number of effective heating control cycles obtained is 12, when button B is triggered, the total number of effective heating control cycles obtained is 13, and when button C is triggered, the total number of effective heating control cycles obtained is 14; or, multiple infrared detection sensors are set on the aerosol generating device, and the aerosol generating device is provided with a trigger component that cooperates with the infrared detection sensor, and the position of the trigger component on different types of aerosol generating products is different, so that it can be detected by the infrared detection sensors at different positions on the aerosol generating device, thereby obtaining the total number of effective heating control cycles of the corresponding aerosol generating product.

[0056] Step S102: When the aerosol generating device is in working state, the heating control cycles are counted to obtain the actual cumulative number of heating control cycles.

[0057] Step S103: Compare the actual cumulative number of heating control cycles with the total number of effective heating control cycles.

[0058] Step S104: determine whether the current heating control cycle is a valid heating control cycle based on the comparison result; if the accumulated number of actual heating control cycles is less than or equal to the total number of valid heating control cycles, determine that the current heating control cycle is a valid heating control cycle.

[0059] It should be noted that when the accumulated number of actual heating control cycles is greater than the total number of valid heating control cycles, the current heating control cycle is determined to be a non-valid heating control cycle, and a prompt to replace the aerosol generating product is issued.

[0060] It should be understood that, in other embodiments, the step of determining whether the current heating control cycle is a valid heating control cycle can also be determined by detecting the mass or volume of the aerosol generating product; for example, when the mass of the aerosol generating product is within the preset standard range, the current heating control cycle is determined to be a valid heating control cycle; when the mass of the aerosol generating product is not within the preset standard range, a prompt to replace the aerosol generating product is issued.

[0061] In one embodiment, step S11 includes the following steps:

[0062] Step S110: When a heating control signal is received, the actual stage of the current heating control cycle is determined according to the signal type of the heating control signal.

[0063] Specifically, when a start heating control signal is received, it is determined that the current heating control cycle is in the first stage; when a continuous heating control signal is received, it is determined that the current heating control cycle is in the second stage; when a stop heating control signal is received, it is determined that the current heating control cycle is in the third stage.

[0064] During the first stage, a first preset power value is applied to the microwave heating assembly to increase the temperature of the aerosol-generating article from an initial temperature to a first temperature. The first temperature is between 200°C and 350°C, for example, 200°C, 220°C, 250°C, 300°C, 320°C, 350°C, etc. The range of the first temperature is determined by the material of the aerosol-generating article. The first stage of the heating control cycle is a process of rapidly heating the aerosol-generating article to generate aerosol. The duration of the first stage can be between 0.01s and 5s, for example, 0.01s, 0.6s, 1s, 2.8s, 4s, and 5s.

[0065] In the second stage, a second preset power value is provided to the microwave heating component to maintain the temperature of the aerosol-generating article at a second temperature, wherein the second temperature is between 100°C and 350°C. For example, the second temperature can be 100°C, 140°C, 200°C, 260°C, 300°C, 350°C, etc. The first temperature is greater than the second temperature. For example, when the first temperature is 200°C, the second temperature is 100°C.

[0066] During the third stage, a third preset power value is supplied to the microwave heating assembly to cool the aerosol-generating article to a third temperature. The third temperature may be greater than or equal to the initial temperature. In practical applications, the magnitude of the third preset power value depends on the operating state of the aerosol-generating device, as follows:

[0067] Step S14: In the third stage, the working status of the aerosol generating device is obtained.

[0068] Specifically, the working state includes a keep warm state and a standby state. After completing one puff, the user may take the next puff immediately, after a short interval, or after a long interval. When the user takes the next puff immediately after completing one puff or after a long interval, the device is in the standby state, and when the user takes the next puff after a short interval, the device is in the keep warm state. For example, the user may take the next puff immediately within 1 second after the previous puff; take the next puff after a short interval of 20 seconds (short time), such as after a sudden cough; or take the next puff after a three-minute interval (long time), such as after entering and exiting an elevator.

[0069] Step S15: judging whether the power supply condition of the microwave heating component is met according to the working state; if the working state is the keep-warm state, the power supply condition is met, and then the microwave heating component is provided with power of a third preset power value; if the working state is the standby state, the power supply condition is not met, and then the microwave heating component is provided with power of 0.

[0070] Specifically, the third preset power value is lower than the second preset power value, so that the third temperature is lower than the second temperature, thereby preventing heating of the aerosol-generating article and generating aerosol during the third stage. When the operating state is a keep-warm state, the third temperature is higher than the initial temperature, so that the time required to increase from the third temperature to the first temperature is shorter than the time required to increase from the initial temperature to the first temperature. Consequently, when the aerosol-generating device is in the keep-warm state, aerosol generation can be accelerated upon activation of a puff. When the operating state is a standby state, the microwave heating component continues to be powered off, allowing the third temperature to cool to the initial temperature, thereby saving power when the puff interval is excessively long.

[0071] In some embodiments, the control detection device detects user puffing behavior data; if the user's puffing state is determined to be a start-puff state based on the user's puffing behavior data, a start heating control signal is generated; if the user's puffing state is determined to be a stop-puff state based on the user's puffing behavior data, a stop heating control signal is generated. The device also detects the real-time heating temperature of the aerosol-generating article; compares the real-time heating temperature with a first preset temperature; and generates a continuous heating control signal when the real-time heating temperature equals the first preset temperature.

[0072] Specifically, the detection device can be a trigger or a sensor. The trigger can be a button, and triggering different buttons generates a start heating control signal or a stop heating control signal. For example, triggering button A generates a start heating control signal, while triggering button B generates a stop heating control signal. Alternatively, the start heating control signal or the stop heating control signal is generated by different button triggering times. For example, triggering the button once generates a start heating control signal, while triggering it twice generates a stop heating control signal. The sensor can be a position sensor, a pressure sensor, or a combination of multiple sensors. For example, if the sensor is a position sensor, the start heating control signal is generated when the distance from the position sensor reaches a preset distance threshold before puffing begins, and the stop heating control signal is generated when the distance from the position sensor does not reach the preset distance threshold when puffing stops. The real-time temperature of the aerosol-generating article can be detected using a temperature sensor, or microwave measurement can be used to detect the real-time temperature of the aerosol-generating article. When the real-time heating temperature is less than a first preset temperature, the first stage is continued.

[0073] In some embodiments, the heating stop control signal may be generated by detecting the duration of heating in real time during the second phase; and generating the heating stop control signal when the duration reaches a preset duration threshold. For example, the preset duration threshold may be 3 seconds. When the duration of heating reaches 3 seconds, the heating stop control signal is generated; if the duration of heating does not reach 3 seconds, the second phase continues.

[0074] Please refer to FIG2 , which is a detailed flow chart of the temperature control method provided in an embodiment of the present application, including the following steps:

[0075] Step S20 , controlling the detection device to detect the user's puffing behavior data; if it is determined according to the user's puffing behavior data that the user's puffing state is the start of puffing state, generating a heating start control signal.

[0076] Step S21: When a heating control start signal is received, it is determined that the current heating control cycle is in the first stage.

[0077] Step S22: Match the first preset power value corresponding to the first stage from the database.

[0078] Step S23: providing a first preset power value to the microwave heating component in the first stage.

[0079] Step S24: detecting the real-time heating temperature of the aerosol generating product; comparing the real-time heating temperature with the first preset temperature; and generating a continuous heating control signal when the real-time heating temperature is equal to the first preset temperature.

[0080] Step S25: When the continuous heating control signal is received, it is determined that the current heating control cycle is in the second stage.

[0081] Step S26: Match the second preset power value corresponding to the second stage from the database.

[0082] Step S27: providing a second preset power value to the microwave heating component in the second stage.

[0083] Step S28: During the execution of the second phase, the executed heating time is detected in real time; when the executed heating time reaches a preset time threshold, a heating stop control signal is generated.

[0084] Step S29: When a stop heating control signal is received, it is determined that the current heating control cycle is in the third stage.

[0085] Step S30: matching the third preset power value corresponding to the third stage from the database.

[0086] Step S31: providing a third preset power value to the microwave heating component in the third stage.

[0087] Please refer to Figure 3, which is a schematic diagram of a temperature curve for an aerosol-generating article provided in an embodiment of the present application, wherein the horizontal axis represents time and the vertical axis represents temperature. In any heating control cycle in Figure 3, the aerosol-generating article is in a standby state during the third stage. It should be noted that at the end of the first stage, due to the removal of some heat by the user's puffing, the temperature drops. During the second stage, the second preset power supplied to the microwave heating assembly maintains the aerosol-generating article at the second temperature.

[0088] Referring to Figures 4 and 5 , this embodiment provides an aerosol-generating device comprising a power supply 1, a microwave heating assembly, and a controller 3. The microwave heating assembly is electrically connected to the power supply 1; the microwave heating assembly is used to accommodate an aerosol-generating product and, when powered, emits microwaves to heat the aerosol-generating product. The controller 3 is electrically connected to the power supply 1 and the microwave heating assembly. The controller 3 uses the aforementioned temperature control method to control the heating temperature of the aerosol-generating product. This allows for rapid aerosol inhalation while ensuring that the aerosol-generating product does not burn or produce high-temperature aerosol products that could be harmful to health during inhalation. Furthermore, the controller ensures that the aerosol-generating product is continuously heated to produce a certain amount of aerosol, improving the uniformity of the temperature field and ensuring consistent aerosol taste and release.

[0089] Specifically, the microwave heating assembly includes a radio frequency source 2, which emits microwaves (electromagnetic waves) when powered. The source includes a radio frequency oscillator circuit, a radio frequency amplifier circuit, a radio frequency detection circuit, and a radio frequency transmission line. The controller 3 adjusts the duty cycle of each of these circuits to cause them to emit high-frequency signals of varying frequencies and intensities, thereby controlling the power provided by the source 2 and, in turn, the heating temperature of the aerosol-generating article. The power is linearly related to the power of the microwaves emitted by the source 2; the greater the power, the greater the power of the microwaves emitted by the source 2.

[0090] Referring to Figure 4 , in some embodiments, the microwave heating assembly further includes a resonator 4, and the aerosol-generating device further includes a probe 5 connected to the RF source 2 and extending into the resonator 4, a temperature sensor disposed at the end of the probe 5 distal from the RF source 2 and electrically connected to the controller 3, and a position sensor 6 electrically connected to the controller 3. The temperature sensor may be a thermocouple (or infrared sensor, thermistor, etc.) disposed on the probe 5, which measures the temperature of the aerosol-generating article 9 via the thermistor. The position sensor 6 senses the user's puffing characteristics by detecting position changes and transmits a heating start or stop control signal to the controller 3. The aerosol-generating article 9 may be cylindrical with an outer diameter of 7.2 mm and a length of 12 mm. When the aerosol-generating article 9 is inserted into the resonant cavity of the resonator 4, the probe 5 is inserted into the interior of the aerosol-generating article 9.

[0091] Specifically, when the position sensor 6 detects the characteristic action before inhalation, the position sensor 6 transmits a start heating control signal to the controller 3, and the controller 3 executes the first stage of the corresponding heating control cycle according to the received start heating control signal, and the controller 3 controls the power supply 1 to provide the RF source 2 with a first preset power value, so that the temperature of the aerosol generating product starts to rise from the initial temperature; when the temperature sensor detects that the temperature of the aerosol generating product 9 rises to the first temperature, the controller 3 executes the second stage of the corresponding heating control cycle, at this time, the controller 3 controls the power supply 1 to provide the RF source 2 with a second preset power value, so that the temperature of the aerosol generating product 9 drops from the first temperature to the second temperature and maintains at the second temperature; when the position sensor 6 detects the characteristic action when the inhalation stops, the position sensor 6 transmits a stop heating control signal to the controller 3, and the controller 3 receives the stop heating control signal to execute the third stage of the corresponding heating control cycle. After the third stage is completed, the corresponding heating control cycle is completed and waits for the next heating control cycle.

[0092] Referring to Figure 5 , in some embodiments, the microwave heating assembly further includes a heating antenna 7 electrically connected to the controller 3. The aerosol-generating device further includes a detection assembly for detecting characteristic pre-puff movements. The detection assembly may be an air pressure sensor 8, which senses the user's characteristic puff movements by detecting air pressure changes, thereby generating a heating start or stop control signal. The aerosol-generating article 9 may be spherical with a diameter of 3 mm. The temperature of the aerosol-generating article 9 is calculated by monitoring the reflected S11 parameter, phase, and resonant frequency using a microwave measurement method.

[0093] Specifically, when the air pressure sensor 8 detects the characteristic action before inhalation, the air pressure sensor 8 transmits a start heating control signal to the controller 3, and the controller 3 executes the first stage of the corresponding heating control cycle according to the received start heating control signal, and the controller 3 controls the power supply 1 to provide the first preset power value to the RF source 2, so that the temperature of the aerosol generating product 9 starts to rise from the initial temperature; when the temperature of the aerosol generating product is detected to rise to the first temperature through the microwave measurement method, the controller 3 executes the second stage of the corresponding heating control cycle, at this time, the controller 3 controls the power supply 1 to provide the second preset power value to the RF source 2, so that the temperature of the aerosol generating product 9 drops from the first temperature to the second temperature and maintains it at the second temperature; after the second stage is executed for a preset time, the controller 3 transmits a stop heating control signal to the controller 3, and the stop heating control signal received by the controller 3 executes the third stage of the corresponding heating control cycle. After the third stage is completed, the corresponding heating control cycle is completed and waits for the next heating control cycle.

[0094] It should be noted that the microwave heating component can be designed to automatically and continuously insert and remove the aerosol generating product 9. The aerosol generating product 9 can also be in the shape of a ribbon, filament, cake, etc., so as to be automatically and continuously fed into the microwave heating component.

[0095] The present application also provides a computer-readable storage medium, comprising a volatile or non-volatile, removable or non-removable medium implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules or other data). Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer.

[0096] The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more controllers to implement at least one step of the above-mentioned temperature control method.

[0097] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A temperature control method is applied to an aerosol generating device, which includes a microwave heating component. The temperature control method includes: Obtain the actual stage in the current heating control cycle. Wherein, the heating control cycle includes a first stage, a second stage, and a third stage. The start time of the second stage is the end time of the first stage, and the start time of the third stage is the end time of the second stage. Match the power value corresponding to the actual stage from the database. Wherein, the first preset power value corresponding to the first stage is greater than the second preset power value corresponding to the second stage. Both the first preset power value and the second preset power value are greater than the preset power threshold. The microwave heating component can heat the aerosol generating article to generate aerosol when the power of the preset power threshold is applied. The power value corresponding to the third stage is the third preset power value, and the third preset power value is less than the second preset power value. Supply power to the microwave heating component according to the corresponding power value in the actual stage.

2. The temperature control method according to claim 1, further comprising: In the third stage, obtain the working state of the aerosol generating device. Wherein, the working state includes a heat preservation state and a standby state. Judge whether the power supply condition of the microwave heating component is satisfied according to the working state. If the working state is the heat preservation state, the power supply condition is satisfied, and then supply the power of the third preset power value to the microwave heating component. Wherein, the third preset power value is not 0. If the working state is the standby state, the power supply condition is not satisfied, and then supply the power of the third preset power value to the microwave heating component, where the third preset power value is 0.

3. The temperature control method according to claim 1, wherein, The obtaining the actual stage in the current heating control cycle includes: When receiving a heating control signal, determine the actual stage in the current heating control cycle according to the signal type of the heating control signal.

4. The temperature control method according to claim 3, wherein, The when receiving a heating control signal and determining the actual stage in the current heating control cycle according to the signal type of the heating control signal includes: When receiving a start heating control signal, correspondingly determine that the current heating control cycle is in the first stage. When receiving a continuous heating control signal, correspondingly determine that the current heating control cycle is in the second stage. When receiving a stop heating control signal, correspondingly determine that the current heating control cycle is in the third stage.

5. The temperature control method according to claim 4, further comprising: Detect the real-time heating temperature of the aerosol generating article. Compare the size of the real-time heating temperature with the first preset temperature. When the real-time heating temperature is equal to the first preset temperature, generate the continuous heating control signal.

6. The temperature control method according to claim 4, further comprising: Control the detection device to detect the user's puffing behavior data. If it is determined according to the user's puffing behavior data that the user's puffing state is the start puffing state, then generate the start heating control signal; If it is determined according to the user's puffing behavior data that the user's puffing state is the stop puffing state, then generate the stop heating control signal.

7. The temperature control method according to claim 4, the temperature control method further comprising: During the execution of the second stage, the elapsed heating duration is detected in real time; When the elapsed heating duration reaches a preset duration threshold, generate the stop heating control signal.

8. The temperature control method according to claim 1, wherein, Before obtaining the actual stage of the current heating control cycle, it further includes: Determine whether the current heating control cycle is a valid heating control cycle; If it is the valid heating control cycle, then execute the step of obtaining the actual stage of the current heating control cycle.

9. The temperature control method according to claim 8, wherein, The determination of whether the current heating control cycle is a valid heating control cycle includes: Obtain the total number of valid heating control cycles corresponding to the aerosol-generating article heated by the aerosol-generating device; When the aerosol-generating device is in the working state, count the heating control cycles to obtain the cumulative number of actual heating control cycles; Compare the cumulative number of actual heating control cycles with the total number of valid heating control cycles; Determine whether the current heating control cycle is a valid heating control cycle according to the comparison result; wherein, if the cumulative number of actual heating control cycles is less than or equal to the total number of valid heating control cycles, it is determined that the current heating control cycle is a valid heating control cycle.

10. An aerosol-generating device, comprising: A power supply; A microwave heating assembly electrically connected to the power supply; A controller electrically connected to the power supply and the microwave heating assembly, and the controller controls the heating temperature of the aerosol-generating article by using the temperature control method according to any one of claims 1-9.

11. The aerosol-generating device according to claim 10, the aerosol-generating device further comprising a probe disposed on the microwave heating assembly and a temperature measuring sensor electrically connected to the controller and disposed on the probe.

12. The aerosol-generating device according to claim 10, the aerosol-generating device further comprising a detection assembly electrically connected to the controller, and the detection assembly is used to detect the characteristic actions before puffing.

13. A computer-readable storage medium, the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more controllers to implement the steps of the temperature control method according to any one of claims 1 to 9.

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