WO2025237129A1 - 控制方法及气溶胶生成装置 - Google Patents

控制方法及气溶胶生成装置

Info

Publication number
WO2025237129A1
WO2025237129A1 PCT/CN2025/093139 CN2025093139W WO2025237129A1 WO 2025237129 A1 WO2025237129 A1 WO 2025237129A1 CN 2025093139 W CN2025093139 W CN 2025093139W WO 2025237129 A1 WO2025237129 A1 WO 2025237129A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
heater
threshold
aerosol
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/093139
Other languages
English (en)
French (fr)
Inventor
汪涛
徐中立
李永海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen FirstUnion Technology Co Ltd
Original Assignee
Shenzhen FirstUnion Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen FirstUnion Technology Co Ltd filed Critical Shenzhen FirstUnion Technology Co Ltd
Publication of WO2025237129A1 publication Critical patent/WO2025237129A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42—Cartridges or containers for inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • This application relates to the field of aerosol generation technology, and more particularly to a control method and an aerosol generation apparatus.
  • Aerosol generating devices heat an aerosol-forming matrix to generate aerosols for users to inhale.
  • aerosol generating devices adjust the heater temperature by changing the power output, controlling the temperature according to a pre-set temperature curve.
  • this temperature control process there is a possibility of the heater burning out due to uncontrolled heating. Therefore, effectively reducing heater burnout is a problem that needs to be solved.
  • the present application provides a control method and an aerosol generating device, which can effectively reduce the occurrence of heater burnout and improve the safety of the aerosol generating device.
  • some embodiments of this application provide a control method applied to an aerosol generating apparatus, the aerosol generating apparatus including a heater and a power source, the heater being used to heat an aerosol forming matrix to generate aerosols, and the power source being used to provide power to the heater;
  • the control method includes:
  • the control power supply is reduced or stopped from providing power to the heater.
  • obtaining the first cumulative energy supplied to the heater by the power source within a first time period prior to the current moment includes:
  • the method further includes:
  • the total energy is obtained by summing up the energy from the previous cycles.
  • the energy supplied to the heater by the power source within the aforementioned calculation period T to obtain the periodic energy includes:
  • the periodic energy is determined based on the electrical signal parameters and the corresponding duty cycle.
  • the aforementioned period T is less than 1 second.
  • the aforementioned control of reducing or stopping the power supply to the heater if the first accumulated energy is greater than or equal to a first threshold includes:
  • the control power supply reduces or stops supplying power to the heater, wherein the first energy threshold is determined based on the energy supply characteristics of the heater during the heating phase.
  • the aforementioned control of reducing or stopping the power supply to the heater if the first accumulated energy is greater than or equal to the first threshold further includes:
  • the control power supply reduces the power supplied to the heater.
  • the second energy threshold is determined based on the energy supply characteristics of the heater during the heat preservation stage, and the second energy threshold is less than the first energy threshold.
  • the aforementioned control of reducing or stopping the power supply to the heater if the first accumulated energy is greater than or equal to the first threshold further includes:
  • the control power supply reduces or stops supplying power to the heater.
  • the third energy threshold is determined based on the energy supply characteristics of the heater during the suction phase. The third energy threshold is greater than the second energy threshold and less than the first energy threshold.
  • the method further includes:
  • the power supply is reduced or stopped from providing power to the heater.
  • an aerosol generating apparatus comprising:
  • a heater used to heat an aerosol-forming matrix to generate aerosols
  • Power source used to provide power to the heater
  • the controller connects the heater and the power supply to execute the control method of the first aspect.
  • the control method provided in this application is applied to an aerosol generating device, which includes a heater and a power supply.
  • the heater heats the aerosol forming matrix to generate aerosols, and the power supply provides power to the heater.
  • the control method includes: determining a first cumulative energy supplied to the heater by the power supply within a first time period prior to the current moment; determining whether the first cumulative energy is greater than or equal to a first threshold; and if the first cumulative energy is greater than or equal to the first threshold, controlling the power supply to reduce or stop supplying power to the heater.
  • the first cumulative energy supplied to the heater by the power supply within a first time period prior to the current moment can accurately and intuitively reflect the energy the heater has endured in the most recent first time period. Since energy is the mechanism by which the heater heats up, by comparing the first cumulative energy with the first threshold, it is possible to accurately determine whether the heater is at risk of overheating. When the first cumulative energy is detected to be greater than or equal to the first threshold, it indicates that the heater is enduring excessive energy and there is a risk of overheating. Therefore, controlling the power supply to reduce or stop supplying power to the heater, i.e., reducing or stopping the energy supply, can effectively reduce the occurrence of heater burnout and improve the safety of the aerosol generating device. Compared to solutions that use sensors to monitor whether the heater is overheating uncontrollably, using the energy within the first hour before the current moment as the monitoring benchmark can effectively intercept the risks caused by sensor failure and has higher reliability.
  • Figure 1 is a schematic diagram of an aerosol forming article inserted into an aerosol generating device in some embodiments of this application;
  • Figure 2 is a schematic diagram of the structure of the aerosol generating device in some embodiments of this application.
  • Figure 3 is a schematic diagram of the structure of aerosol-forming articles in some embodiments of this application.
  • Figure 4 is a schematic diagram of an aerosol generating apparatus and an aerosol forming article in some embodiments of this application;
  • Figure 5 is a schematic diagram of the working principle of the induction heater assembly in some embodiments of this application.
  • Figure 6 is a schematic flowchart of a control method applied to an aerosol generating device in some embodiments of this application;
  • Figure 7 is a schematic diagram of a pre-set temperature curve in some embodiments of this application.
  • Figure 8 is a schematic diagram of the working principle of the operational amplifier acquisition circuit in some embodiments of this application.
  • Figure 9(a) is a schematic diagram of the change of the first accumulated energy over time under normal conditions in some embodiments of this application.
  • Figure 9(b) is a schematic diagram of the change of the first accumulated energy over time under abnormal conditions in some embodiments of this application.
  • Figure 10 is a schematic diagram of setting the first threshold in stages in some embodiments of this application.
  • FIGS 1 and 2 illustrate an aerosol generating apparatus 10 according to some embodiments of this application, including: a chamber 11, a heater 12, a power supply 14, and a controller 15.
  • the controller 15 is electrically connected to the power supply 14 and the heater 12.
  • Chamber 11 is used to receive aerosol-forming article 20. Aerosol-forming article 20 can be inserted into or removed from chamber 11 through opening A on aerosol generating device 10.
  • the aerosol forming article 20 includes a filter section 21 and a matrix material section 22.
  • the matrix material section 22 includes an aerosol forming matrix.
  • the aerosol forming matrix is a matrix capable of releasing volatile compounds that can form aerosols. These volatile compounds can be released by heating the aerosol forming matrix.
  • the aerosol forming matrix can be a solid aerosol forming matrix.
  • the aerosol forming matrix may include solid and liquid components.
  • the aerosol forming matrix may include tobacco-containing material comprising volatile tobacco flavor compounds released from the matrix upon heating.
  • the aerosol forming matrix may include non-tobacco materials.
  • the aerosol forming matrix may further include aerosol formations. Suitable examples of aerosol formations are glycerol and propylene glycol.
  • the aerosol generated by heating the matrix material segment 22 is delivered to the user through the filter segment 21, which can be a cellulose acetate filter.
  • the filter segment 21 can be sprayed with flavoring liquid to provide aroma, or, separately inserted fibers coated with flavoring liquid, can be inserted into the filter segment to improve the persistence of the flavor delivered to the user.
  • the filter segment 21 can also have a spherical or cylindrical capsule containing the flavoring substance.
  • Figure 3 shows only the components of the aerosol forming article 20 relevant to this embodiment. Accordingly, those skilled in the art will understand that the aerosol forming article 20 may also include general components other than those shown in Figure 3. For example, a cooling section for cooling the aerosol generated by heating the matrix material section 22, so that the user can inhale the aerosol cooled to an appropriate temperature.
  • Heater 12 is used to heat the aerosol forming matrix in the aerosol forming article 20 to generate an inhalable aerosol.
  • the heater 12 includes a tubular base 121 extending axially along and surrounding the chamber 11, and a heating element 122 disposed on the outer surface of the base 121. It is understood that in some other embodiments, the heating element 122 may also be located on the inner surface or intermediate layer of the base 121. This is merely illustrative and does not impose any limitation on the heating element 122.
  • the heating element 122 is a resistance heating circuit disposed on the substrate 121, such as a conductive trace, a MESH heating grid, or a heating wire.
  • the resistance heating circuit is coupled to the power supply 14 through the lead 13 or a conductive medium. After receiving power from the power supply 14, it generates heat and transfers the heating energy generated by the heat generation to the aerosol forming article 20 through the substrate 121.
  • the heating element 122 is a heating plate or heating needle disposed in the chamber 11, which can be inserted into the aerosol forming article 20 for heating, i.e., the commonly referred to center heating or internal heating.
  • the heating element 122 may also be an infrared electrothermal coating formed on the substrate 121.
  • the infrared electrothermal coating is coupled to the power supply 14 through the wire 13 or a conductive medium. After receiving the power provided by the power supply 14, it heats up to generate infrared rays. It may be formed by heating the aerosol article 20 through the infrared-transmitting substrate 121 or by direct radiation.
  • the heating element 122 may also be a heating element such as electromagnetic induction or air heating.
  • the heating element 122 includes a sensor, and the aerosol generating apparatus 10 also includes a corresponding induction coil.
  • the induction coil When a changing current flows through the induction coil, the induction coil generates a changing magnetic field.
  • the sensor heats up, thereby heating the aerosol forming matrix to generate aerosol.
  • the induction coil is disposed on the outer surface of the substrate 121, and the sensor is in the form of a sheet, needle, or pin, disposed within the chamber 11.
  • the sensor When the aerosol forming article 20 is inserted into the chamber 11, the sensor penetrates into the interior of the aerosol forming article 20 and comes into contact with the aerosol generating matrix. Thus, when the sensor 122 heats up, heat can be effectively transferred to the aerosol forming article 20 to bake the aerosol forming matrix.
  • the sensor is a metal tube disposed on the inner surface of the substrate 121.
  • the aerosol forming article 20 comes into direct or indirect contact with the metal tube.
  • the metal tube heats up, the heat can be effectively transferred to the aerosol forming article 20.
  • the aerosol forming article 20 incorporates a metal sheet or metal needle.
  • the incorporated metal sheet or metal needle acts as a sensor, generating heat under the influence of a changing magnetic field produced by the induction coil, thereby baking the aerosol forming matrix. It is understood that in this embodiment, the sensor is disposable and is discarded after the aerosol forming article 20 has been used.
  • the senor is located upstream of the air intake channel and does not directly contact the aerosol forming matrix. Instead, when the sensor heats up, the heat can be effectively transferred to the air to heat the air, and then the heated air enters the aerosol forming article 20 to bake the aerosol forming matrix.
  • the aerosol generating device 10 further includes a top cover and a Hall sensor (not shown), the top cover being used to selectively cover the opening A of the aerosol generating device 10.
  • the top cover is disposed on the housing and is slidable relative to the housing, thereby exposing or closing the opening A.
  • the top cover and the housing are detachably connected by snaps or threads. When using the aerosol generating device, the top cover can be opened.
  • a magnet is installed inside the top cover. It is understood that when the top cover is closed, the magnet does not correspond to chamber 11, but rather to the space adjacent to chamber 11.
  • a Hall sensor is located inside the outer casing. When the top cover is closed, the magnet aligns with the Hall sensor. Since the Hall sensor can detect magnetic fields and their changes, it can detect whether the top cover is open or closed.
  • Power source 14 provides electricity for operating the aerosol generating apparatus 10.
  • power source 14 can provide electricity to heater 12, which receives the electricity and generates heat.
  • power source 14 can provide the electricity required to operate other components provided in the aerosol generating apparatus 10.
  • Power source 14 can be a rechargeable battery or a disposable battery.
  • Power source 14 can be, but is not limited to, a lithium iron phosphate (LiFePO4) battery.
  • power source 14 can be a lithium cobalt oxide (LiCoO2) battery or a lithium titanate battery.
  • the controller 15 can control the overall operation of the aerosol generating device 10. Specifically, the controller 15 controls the operation of the power supply 14 and the heater 12, and can also control the operation of other devices.
  • the controller 15 includes a memory for storing program instructions corresponding to the control method in any of the following method embodiments, and also includes a monitoring circuit or timer for monitoring power supply time, a detection circuit or temperature sensor for detecting temperature, etc.
  • the power supply is controlled to reduce the power supplied to the heater, that is, to reduce the energy supply, which can effectively reduce the occurrence of heater burnout and improve the safety of the aerosol generating device.
  • the aerosol generating device 10 includes an atomizer 16, a device body 17, and a chamber 11.
  • the atomizer 16 has a liquid storage tank and a liquid aerosol forming matrix disposed within the liquid storage tank.
  • the atomizer also has a heater for heating and atomizing the liquid aerosol forming matrix.
  • the atomizer does not have a heater and only has a liquid storage function, used to cooperate with an external heater to heat and atomize the liquid aerosol forming matrix inside the atomizer.
  • the atomizer may also be equipped with an ultrasonic atomizing element to ultrasonically atomize the liquid aerosol forming matrix.
  • the atomizer 16 is pluggably installed in the chamber 11, and the device body 17 provides power and heating control to the atomizer 16.
  • a temperature sensor is used to monitor the temperature of the heater. In case of abnormal temperature, appropriate protective measures are taken (e.g., power is stopped from being supplied to the heater) to reduce the occurrence of heater burnout in the aerosol generating device.
  • an open-circuit detection module and a short-circuit detection module are used to monitor current and/or voltage. When overcurrent or overvoltage is detected, appropriate protective measures are taken (e.g., power is stopped from being supplied to the heater) to reduce heater burnout due to uncontrolled heating.
  • some embodiments of this application provide a control method that monitors the heater for the risk of thermal runaway based on energy levels, effectively reducing the occurrence of heater damage due to thermal runaway. Compared to methods that use sensors to monitor for heater runaway, using energy as the monitoring benchmark effectively mitigates the risk caused by sensor failure and offers higher reliability.
  • Figure 6 is a schematic flowchart of a control method for an aerosol generating apparatus provided in some embodiments of this application.
  • method S100 may specifically include the following steps:
  • S10 Determine the first cumulative energy supplied to the heater by the power source within the first time period before the current moment.
  • the aerosol generator's controller Upon receiving a heating start command, the aerosol generator's controller uses a temperature control algorithm (such as a PID algorithm) to control the heater's heating, ensuring the heater's temperature meets a pre-set temperature curve. As shown in Figure 7, the temperature curve represents the relationship between the target temperature and time. The heater's temperature first rises rapidly to the preheating temperature (e.g., around 250°C) within a short timeframe, during the heating phase, heating the aerosol-forming matrix to generate aerosols, effectively reducing the waiting time for the consumer to begin smoking.
  • a temperature control algorithm such as a PID algorithm
  • the preheating temperature or slightly below it e.g., around 230°C
  • Aerosols can be generated during this phase, but are generally unlikely to be inhaled by the user from the aerosol generator.
  • the inhalation phase begins, where aerosols are generated by the aerosol generator at a satisfactory rate and inhaled by the user.
  • the heat preservation temperature or slightly below it e.g., around 220°C
  • the suction stage begins directly after the heating stage is completed. That is, sufficient aerosol for suction can be generated after the aerosol generating device has finished heating.
  • the temperature sensor collects the heater temperature at a certain frequency. If the heater temperature collected at the current moment is lower than the target temperature corresponding to the current moment in the temperature curve, the duty cycle of the PWM pulse signal is increased to increase the voltage supplied by the power supply to the heater, so that the temperature rises and is maintained at the target temperature. If the heater temperature collected at the current moment is higher than the target temperature corresponding to the current moment in the temperature curve, the duty cycle of the PWM pulse signal is decreased to decrease the voltage supplied by the power supply to the heater, so that the temperature falls and is maintained at the target temperature.
  • the start heating command can be a signal generated by the user operating the input element, or it can be obtained by the detection signal of the sensor.
  • the position trigger signal of the aerosol forming article 20 inserted into the aerosol generating device 10 can be detected by the pressure sensor or the electrical parameter sensor, or the signal generated by the user pressing the button can be detected by the airflow sensor.
  • Heating runaway detection refers to detecting whether the heater has run away with the heat. For example, if the circuit or components of the aerosol generating device malfunction during the heating process, the heater may overheat, resulting in heating runaway.
  • the current moment is the moment when heating runaway detection is being performed.
  • the first duration before the current moment refers to the time interval between the current moment t and the current moment.
  • This first duration can be K seconds, and the first duration before the current moment is t-K seconds.
  • the first accumulated energy refers to the energy supplied to the heater from t-K seconds until the current moment t.
  • the first duration K can be 1 second or 3 seconds. It is understood that the unit of the first duration can be seconds or milliseconds, and no restrictions are imposed here.
  • the first cumulative energy supplied to the heater by the power source in the first time period before the current moment can truly and intuitively reflect the energy that the heater has endured in the most recent first time period. Therefore, it is possible to determine whether the heater has experienced heating runaway or is at risk of heating runaway based on the first cumulative energy.
  • the aforementioned step S10 specifically includes:
  • the power supply begins to provide energy to the heater.
  • the total energy at the current moment refers to the cumulative energy supplied to the heater by the power supply from the moment the controller receives the start heating command and the power supply begins to provide energy to the heater until the current time t.
  • the total energy during the first time period before the current moment refers to the total energy borne by the heater from the moment the power supply begins to provide energy to the heater until time tK.
  • K is the first duration
  • En (K) is the first accumulated energy within the first duration before the current time
  • Etotal (t) is the total energy at the current time
  • Etotal (tK) is the total energy within the first duration before the current time.
  • the method S100 further includes:
  • S20 Calculate the energy supplied to the heater by the power source within period T to obtain the periodic energy.
  • the aforementioned temperature control algorithm adjusts the power supplied to the heater based on the temperature curve and the collected temperature data, ensuring that the heater temperature conforms to the temperature curve.
  • the period T refers to the control cycle of the aforementioned temperature control algorithm, also known as the temperature control period. This refers to the duration for which the temperature control algorithm in the controller adjusts the power (or temperature) supplied to the heater each time.
  • the duration of period T is around tens of milliseconds.
  • the duty cycle of the power (or voltage, current) supplied to the heater is the same.
  • the duty cycle of multiple periods T is not exactly the same, and can be determined based on the temperature difference, where the temperature difference refers to the difference between the acquired heater temperature and the corresponding target temperature in the temperature curve.
  • the energy supplied to the heater by the power source within period T is also called periodic energy.
  • the total energy at the current moment is obtained by summing all periodic energies from the start of heating to the current moment. For example:
  • the periodic energy ET U*I*D*T, where U is the voltage, I is the current, D is the duty cycle, and T is the control period.
  • the energy of all periods T within a unit time (e.g., 1 second) is summed to obtain the energy per unit time Ej .
  • the total energy at the current time t can then be calculated using the following formula:
  • E ⁇ sub>total(t) ⁇ /sub> is the total energy at the current time t
  • j is the time index, indicating the j-th second
  • E ⁇ sub>j ⁇ /sub> represents the energy supplied to the heater per unit time during the j-th second.
  • the duty cycle D is the same within the same period T, but the duty cycle is not exactly the same in different periods T.
  • the aforementioned step S20 specifically includes:
  • S21 Acquire electrical signal parameters of the heater, including the heater's voltage and/or current.
  • the period T refers to the control cycle of the temperature control algorithm, which is the duration for which the algorithm adjusts the power (or temperature) supplied to the heater each time.
  • the duty cycle D is the same.
  • the duty cycle D is not exactly the same across multiple periods T.
  • the power supplied to the heater can be characterized by electrical signal parameters. These parameters can be the heater's voltage and/or current, or the number of voltage or current pulses.
  • the operational amplifier circuit shown in Figure 8 is used to acquire the voltage and current of the heater within each cycle T.
  • R is a sampling resistor, connected in series with the heater and located in the heating circuit containing the heater.
  • V1 is the voltage across the sampling resistor R
  • V0 is the output voltage of the amplifier.
  • the amplifier amplifies the voltage V1 by a factor of A (the amplifier's amplification factor) to obtain V0. Based on the voltage V0, the current I flowing through the heater or the sampling resistor can be calculated using Ohm's law. Thus, the electrical signal parameters are obtained.
  • the duty cycle D of the electrical signal parameter is the ratio of high level within one cycle. The larger the ratio of high level, the larger the duty cycle.
  • the electrical signal parameters are different in different cycles T. Within the same cycle T, the duty cycle D is constant, but the duty cycles of different cycles T are not exactly the same. Therefore, the calculation of energy for each cycle T requires obtaining the electrical signal parameters (voltage and/or current of the heater within cycle T) and the duty cycle of the electrical signal parameters to obtain the cycle energy of different cycles T.
  • the electrical signal parameters corresponding to period T1 are U1, I1, D1, and the electrical signal parameters corresponding to period T2 are U2, I2, D2.
  • the cycle energy is calculated according to the control cycle of the temperature control algorithm, that is, the corresponding energy is calculated every time the power is adjusted; since the duty cycle is the same within the control cycle T, the cycle energy can be accurately calculated, which is beneficial to the accuracy of the calculation of total energy and first cumulative energy.
  • the aforementioned period T is less than 1 second.
  • the period T is less than or equal to 100 milliseconds, such as 60 milliseconds, 70 milliseconds, or 80 milliseconds.
  • the duty cycle D corresponding to different periods T is different.
  • the period T is less than 1 second.
  • it is conducive to precise temperature control and precise control.
  • the time span of the accumulated energy is small and the periodic energy is accurate, which in turn is conducive to the accuracy of the calculation of the total energy and the first accumulated energy.
  • the first accumulated energy can accurately and intuitively reflect the energy that the heater has endured in the most recent first time period, thus allowing determination of whether the heater has experienced heating runaway or is at risk of heating runaway based on the first accumulated energy.
  • the first accumulated energy is compared with a preset threshold, as detailed in step S40.
  • the controller detects that the first accumulated energy is greater than or equal to the first threshold, the controller outputs a signal out (e.g., a low level), which acts on the MOSFET in the circuit shown in Figure 8.
  • the MOSFET is turned off, thus disconnecting the heating circuit where the heater is located, i.e., disconnecting the heater to prevent heating runaway.
  • the first threshold is a pre-set energy threshold. If the first cumulative energy is greater than or equal to the first threshold, it indicates that too much energy has been supplied to the heater in the recent first time period, and the heater is at risk of heating runaway. If the first cumulative energy is less than the first threshold, it indicates that the energy supplied to the heater in the recent first time period is reasonable, and the heater is not at risk of heating runaway.
  • the first cumulative energy is E1
  • the first threshold is E_thr.
  • E1 ⁇ E_thr it is determined that too much energy has been supplied to the heater in the most recent first time period, and the heater is at risk of heating runaway.
  • E1 ⁇ E_thr it is determined that the energy supplied to the heater in the most recent first time period is appropriate, and the heater is not at risk of heating runaway.
  • the power supply can be reduced or stopped from providing power to the heater, thus reducing or stopping the heater from receiving more energy and reducing or stopping heating.
  • the horizontal axis represents the points where time is divided equally, and the vertical axis represents the first cumulative energy in the most recent second.
  • the curve represents the first cumulative energy in the most recent second, and the straight line represents the first threshold in the most recent second.
  • the first cumulative energy is always less than the first threshold, and the power supply normally provides energy to the heater, with no risk of heating runaway.
  • the horizontal axis represents the points where time is divided equally, and the vertical axis represents the first cumulative energy in the most recent second.
  • the curve represents the first cumulative energy in the most recent second, and the straight line represents the first threshold in the most recent second. If the first cumulative energy exceeds the first threshold, it indicates that the power supply is abnormally providing energy to the heater, which may pose a risk of uncontrolled heating.
  • the first cumulative energy supplied to the heater by the power source within the first time period before the current moment can accurately and intuitively reflect the energy the heater has endured in the most recent first time period. Since energy is the mechanism by which the heater heats up, by comparing the first cumulative energy with a first threshold, it is possible to accurately determine whether the heater is at risk of overheating. When the first cumulative energy is detected to be greater than or equal to the first threshold, it indicates that the heater is enduring excessive energy, posing a risk of overheating. This allows for control of the power supply to reduce or stop, effectively reducing or stopping the energy supply and minimizing the risk of heater burnout, thus improving the safety of the aerosol generation device. Compared to methods that use sensors to monitor whether the heater is overheating, using the energy within the first time period before the current moment as the monitoring benchmark can effectively intercept risks caused by sensor failure, exhibiting higher reliability.
  • the heating phase After receiving a heating start command, the heating phase begins.
  • the aforementioned step S50 specifically includes:
  • control power supply reduces or stops supplying power to the heater, wherein the first energy threshold is determined based on the energy supply characteristics of the heater during the heating phase.
  • the operation of the aerosol generation device includes a heating stage, a heat preservation stage, and a suction stage, each with different temperature requirements.
  • the heater needs to heat the aerosol matrix to the required temperature within a short time; therefore, the first energy threshold corresponding to this stage is relatively high.
  • a first energy threshold adapted to the heating stage is set to monitor the risk of heating runaway in stages, which conforms to the actual operating conditions of the aerosol generating device and makes the monitoring more accurate.
  • the heat preservation phase begins.
  • the aforementioned step S50 specifically also includes:
  • control power supply reduces the power supplied to the heater, wherein the second energy threshold is determined based on the energy supply characteristics of the heater during the heat preservation stage, and the second energy threshold is less than the first energy threshold.
  • the heat preservation stage is the time period between the heating stage and the suction stage.
  • the aerosol generating device has been heated to the required temperature and has a temperature basis. It only needs relatively less energy to maintain the temperature of the heat preservation stage. Therefore, the second energy threshold is less than the first energy threshold.
  • the heat preservation stage is reached at time t2, and the first accumulated energy corresponding to t2 is E2; the first energy threshold is E(thr2); if E2 ⁇ E(thr2), the controller controls the power supply to reduce the energy supply.
  • a second energy threshold adapted to the heat preservation stage is set to monitor the risk of heating runaway in stages, which conforms to the actual operating conditions of the aerosol generating device and makes the monitoring more accurate.
  • the suction stage begins.
  • the aforementioned step S50 specifically also includes:
  • S53 If the first accumulated energy is greater than or equal to the third energy threshold, control the power supply to reduce or stop supplying power to the heater, wherein the third energy threshold is determined based on the energy supply characteristics of the heater during the suction phase, and the third energy threshold is greater than the second energy threshold and less than the first energy threshold.
  • the extraction phase is the operational phase of the aerosol generation device. Since the device continuously injects cold air during operation, it requires power to supply energy to the heater to maintain the device temperature. Due to the cooling effect of the cold air, the energy supplied to the heater during the first duration of the extraction phase is greater than that during the first duration of the heat preservation phase; therefore, the third energy threshold is greater than the second energy threshold. It is understandable that the aerosol-forming matrix also has a temperature basis during the extraction phase; the energy supplied to the heater during the first duration of the extraction phase is less than that during the first duration of the preheating phase; therefore, the third energy threshold is less than the first energy threshold.
  • the pumping phase occurs at time t3, and the first accumulated energy corresponding to time t3 is E3; the first energy threshold is E(thr3); if E3 ⁇ E(thr3), the controller controls the power supply to reduce the energy supply.
  • a third energy threshold adapted to the suction stage is set to monitor the risk of heating runaway in stages, which conforms to the actual operating conditions of the aerosol generating device and makes the monitoring more accurate.
  • the first thresholds for the heating stage, the heat preservation stage, and the suction stage are set as the first energy threshold, the second energy threshold, and the third energy threshold, respectively, with the first energy threshold > the third energy threshold > the second energy threshold.
  • the heating phase proceeds directly to the suction phase after completion.
  • the first thresholds for the heating and suction phases are set as a fourth energy threshold and a fifth energy threshold, respectively; wherein the fourth energy threshold is determined based on the energy supply characteristics of the heater during the heating phase, and the fifth energy threshold is determined based on the energy supply characteristics of the heater during the suction phase, with the fourth energy threshold being greater than the fifth energy threshold.
  • the method S100 further includes:
  • S60 Determine the second cumulative energy supplied to the heater by the power source during the second duration before the current moment, wherein the second duration is longer than the first duration.
  • the second duration before the current time t refers to the time interval of the second duration from the current time t.
  • the second duration can be J seconds, and the second duration before the current time is t-J.
  • Those skilled in the art can set the second duration J according to the actual heating situation, for example, the second duration J is 5 seconds or 8 seconds. It is understood that the unit of the second duration can be seconds or milliseconds, and no restrictions are imposed here.
  • the total energy within the second time interval before the current time t is also called the second accumulated energy. It is the total energy supplied to the heater by the power source since the start of the heating command was received.
  • the second accumulated energy is obtained by subtracting the total energy within the second time interval before the current time from the total energy at the current moment.
  • J is the second duration
  • En (J) is the second cumulative energy
  • E total (t) is the energy at the current time t
  • E total (tJ) is the total energy at the second duration before the current time.
  • the second duration is different from the first duration. Therefore, the energy threshold corresponding to the most recent second duration is different from the first threshold corresponding to the most recent first duration and is also called the second threshold.
  • the specific calculation method for the second accumulated energy can refer to the specific calculation method for the first accumulated energy in steps S11, S20, and S30 above, and will not be repeated here.
  • the second duration J is 5 seconds
  • the first duration K is 1 second
  • the first accumulated energy is E(K)
  • the second accumulated energy is E(J)
  • the first threshold is 5
  • the second threshold is 20.
  • the cumulative energy over two recent time periods of different lengths is used to determine whether the energy supplied to the heater exceeds the corresponding energy threshold. If both determinations show an excess of the energy threshold, it indicates an anomaly in the energy provided to the heater, posing a risk of uncontrolled heating. Power supply is then reduced or stopped to prevent burnout.
  • this embodiment employs two different recent time periods (one long and one short) for dual protection, effectively reducing false alarms and improving the safety of the aerosol generation device.
  • the control method in this embodiment calculates the first cumulative energy supplied to the heater by the controller, and adjusts the energy supply accordingly based on the comparison between the first cumulative energy and a first threshold. This allows for precise and effective monitoring of heating runaway, thereby intercepting the risk of damage to the aerosol generating device due to the failure of monitoring components.
  • the risk of heating runaway is monitored in stages (heating stage, holding stage, and suction stage), which conforms to the actual operating conditions of the aerosol generating device and makes the monitoring more accurate.
  • using two different recent durations (one long and one short) for dual protection can effectively reduce false judgments and improve the safety of the aerosol generating device.
  • monitoring the heater temperature by calculating energy is more fundamental and effective. This can effectively intercept the risk of damage to the aerosol generating device caused by a single monitored indicator meeting the condition but the energy not meeting the condition, i.e., effectively controlling the temperature and reducing the risk of the heater burning out due to thermal runaway.

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  • Control Of Resistance Heating (AREA)

Abstract

本申请公开了一种控制方法及气溶胶生成装置，气溶胶生成装置包括加热器和电源，加热器用于加热气溶胶形成基质以产生气溶胶，电源用于向加热器提供功率；该控制方法包括：确定当前时刻前第一时长内电源提供给加热器的第一累计能量；判断第一累计能量是否大于或等于第一阈值；若第一累计能量大于或等于第一阈值，则控制电源减少或者停止向加热器提供功率。该方法基于当前时刻前第一时长内的能量来监测加热器是否存在加热失控风险，可有效减少加热器因加热失控而导致损坏的情况发生。相比于采用传感器监测加热器是否加热失控的方案，以当前时刻前第一时长内的能量为监测基准，可有效拦截因传感器失效带来的风险，具有较高的可靠性。

Description

控制方法及气溶胶生成装置
相关申请的交叉参考
本申请要求于2024年05月13日提交中国专利局，申请号为202410606554.X，名称为“控制方法及气溶胶生成装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及气溶胶生成技术领域，尤其涉及一种控制方法及气溶胶生成装置。
背景技术
气溶胶生成装置对气溶胶形成基质进行加热，以生成气溶胶并供用户吸食。一般，气溶胶生成装置通过改变电源输出的功率，以调整加热器的温度，并使其温度按照预先设置的温度曲线进行控制。在上述控温过程中，可能存在着加热器因加热失控而烧毁的情况。因此，如何有效减少加热器烧毁是需要解决的问题。
申请内容
有鉴于此，本申请实施例提供了一种控制方法及气溶胶生成装置，能够有效减少加热器烧毁的情况发生，提高气溶胶生成装置的安全性。
第一方面，本申请一些实施例提供了一种控制方法，应用于气溶胶生成装置，气溶胶生成装置包括加热器和电源，加热器用于加热气溶胶形成基质以产生气溶胶，电源用于向加热器提供功率；
该控制方法包括：
确定当前时刻前第一时长内电源提供给加热器的第一累计能量；
判断第一累计能量是否大于或等于第一阈值；
若第一累计能量大于或等于第一阈值，则控制电源减少或者停止向加热器提供功率。
在一些实施例中，前述获取当前时刻前第一时长内电源提供给加热器的第一累计能量，包括：
将当前时刻的总能量减去当前时刻前第一时长时的总能量，得到第一累计能量。
在一些实施例中，该方法还包括：
计算周期T内电源提供给加热器的能量，得到周期能量；
累加多个前述周期能量，得到总能量。
在一些实施例中，前述计算周期T内电源提供给加热器的能量，得到周期能量，包括：
采集加热器的电信号参数，电信号参数包括加热器的电压和/或电流；
根据电信号参数和电信号参数对应的占空比，确定周期能量。
在一些实施例中，前述周期T小于1秒。
在一些实施例中，前述若第一累计能量大于或等于第一阈值，控制电源减少或停止向加热器提供功率，包括：
若第一累计能量大于或等于第一能量阈值，控制电源减少或停止向加热器提供功率，其中，第一能量阈值是根据加热器在升温阶段的能量供给特征确定的。
在一些实施例中，前述若第一累计能量大于或等于第一阈值，控制电源减少或停止向加热器提供功率，还包括：
若第一累计能量大于或等于第二能量阈值，控制电源减少向加热器提供功率，其中，第二能量阈值是根据加热器在保温阶段的能量供给特征确定的，第二能量阈值小于第一能量阈值。
在一些实施例中，前述若第一累计能量大于或等于第一阈值，控制电源减少或停止向加热器提供功率，还包括：
若第一累计能量大于或等于第三能量阈值，控制电源减少或停止向加热器提供功率，其中，第三能量阈值是根据加热器在抽吸阶段的能量供给特征确定的，第三能量阈值大于第二能量阈值且小于第一能量阈值。
在一些实施例中，该方法还包括：
确定当前时刻前第二时长内电源提供给加热器的第二累计能量，其中，第二时长大于第一时长；
若第一累计能量大于或等于第一阈值且第二累计能量大于或等于第二阈值，控制电源减少或停止向加热器提供功率。
第二方面，本申请一些实施例中提供了一种气溶胶生成装置，包括：
加热器，用于加热气溶胶形成基质以生成气溶胶；
电源，用于向加热器提供功率；
控制器，控制器连接加热器和电源，用于执行第一方面的控制方法。
本申请实施例的有益效果：区别于现有技术的情况，本申请实施例提供的控制方法，应用于气溶胶生成装置，该气溶胶生成装置包括加热器和电源，加热器用于加热气溶胶形成基质以产生气溶胶，电源用于向加热器提供功率。该控制方法包括：确定当前时刻前第一时长内电源提供给加热器的第一累计能量；判断第一累计能量是否大于或等于第一阈值；若第一累计能量大于或等于第一阈值，控制电源减少或停止向加热器提供功率。在此实施例中，当前时刻前第一时长内电源提供给加热器的第一累计能量，可以真实直观地反映加热器在最近第一时长内所承受的能量。而能量是加热器发热的机理，因此，通过将第一累计能量与第一阈值进行比较，可准确确定加热器是否有加热失控的风险。当监测到第一累计能量大于或等于第一阈值，说明加热器所承受的能量过多，有加热失控的风险，从而控制电源减少或停止向加热器提供功率，即减少或停止能量供应，可有效减少加热器烧毁的情况发生，提高气溶胶生成装置的安全性。相比于采用传感器监测加热器是否加热失控的方案，以当前时刻前第一时长内的能量为监测基准，可有效拦截因传感器失效带来的风险，具有较高的可靠性。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1为本申请一些实施例中气溶胶形成制品插入气溶胶生成装置中的示意图；
图2为本申请一些实施例中气溶胶生成装置的结构示意图；
图3为本申请一些实施例中气溶胶形成制品的结构示意图；
图4为本申请一些实施例中气溶胶生成装置和气溶胶形成制品的示意图；
图5为本申请一些实施例中感应加热器组件的工作原理示意图；
图6为本申请一些实施例中应用于气溶胶生成装置的控制方法的流程示意图；
图7为本申请一些实施例中预先设置的温度曲线的示意图；
图8为本申请一些实施例中运放采集电路的工作原理示意图；
图9(a)为本申请一些实施例中正常情况下第一累计能量随时间变化的示意图；
图9(b)为本申请一些实施例中异常情况下第一累计能量随时间变化的示意图；
图10为本申请一些实施例中分阶段设置第一阈值的示意图。
具体实施方式
下面结合具体实施例对本申请进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本申请，但不以任何形式限制本申请。应当指出的是，对本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进。这些都属于本申请的保护范围。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需要说明的是，如果不冲突，本申请实施例中的各个特征可以相互结合，均在本申请的保护范围之内。另外，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步骤。此外，本文所采用的“第一”、“第二”、“第三”等字样并不对数据和执行次序进行限定，仅是对功能和作用基本相同的相同项或相似项进行区分。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本申请各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。
图1和图2是本申请一些实施例提供的一种气溶胶生成装置10，包括：腔室11、加热器12、电源14和控制器15。其中，控制器15电连接电源14和加热器12。
腔室11，用于接收气溶胶形成制品20。气溶胶形成制品20可通过气溶胶生成装置10上的开口A从腔室11中插入或者拔出。
如图3所示，在一些实施例中，气溶胶形成制品20包括滤嘴段21和基质材料段22。基质材料段22包括气溶胶形成基质。气溶胶形成基质是一种能够释放可形成气溶胶的挥发性化合物的基质。这种挥发性化合物可通过加热该气溶胶形成基质而被释放出来。气溶胶形成基质可以是固态气溶胶形成基质。替代性地，气溶胶形成基质可包括固态和液态成分。
在一些实施例中，气溶胶形成基质可包括含烟草材料,其包含在加热时从基质释放的挥发性烟草香味化合物。替代性地,气溶胶形成基质可包括非烟草材料。气溶胶形成基质可进一步包括气溶胶形成物。合适的气溶胶形成物的例子是甘油和丙二醇。
基质材料段22被加热产生的气溶胶通过滤嘴段21输送给用户，滤嘴段21可以是醋酸纤维素过滤嘴。滤嘴段21可以喷洒调味液体来提供香味，或者，可以涂覆有调味液体的分离的纤维插入滤嘴段，进而改善输送给用户的味道的持久性。滤嘴段21还可以具有球形或圆柱形形状的胶囊，胶囊可以含有调味物质的内容物。
在图3中仅示出与本实施例相关的气溶胶形成制品20的部件。相应地,与该实施例有关的本领域技术人员应理解,气溶胶形成制品20中可以还包括除了图3中所示的部件之外的通用部件。例如,用于对基质材料段22被加热产生的气溶胶进行冷却的冷却段,以使得用户可以吸入被冷却到适当温度的气溶胶。
加热器12，用于加热气溶胶形成制品20中的气溶胶形成基质以生成可吸食的气溶胶。
其中，该加热器12包括沿着腔室11轴向延伸并围绕腔室11的管状基体121以及设置在基体121的外表面上的加热元件122。可以理解的是，在其它一些实施例中，加热元件122也可位于基体121的内表面或中间层。这里仅是示例性说明，并不对加热元件122造成任何限制。
在一些实施例中，加热元件122为设置在基体121上的电阻发热线路，例如导电轨迹、MESH发热网、发热丝等，电阻发热线路通过引线13或者导电介质，与电源14耦接，在接收电源14提供的电力之后进行发热，并通过基体121将发热产生的加热能量传递给气溶胶形成制品20。在一些实施例中，加热元件122为设置于腔室11中的发热片或发热针，可插入到气溶胶形成制品20内进行加热，即通常所说的中心加热、内部加热。
在一些实施例中，加热元件122也可以为形成在基体121上的红外电热涂层，红外电热涂层通过电线13或导电介质，与电源14耦接，在接收电源14提供的电力之后进行发热而产生红外线，可以是通过透红外线的基体121或者直接辐射加热气溶胶形成制品20。
在一些实施例中，加热元件122也可以为电磁感应、空气加热等加热元件。加热元件122包括感受器，气溶胶生成装置10还包括对应的感应线圈。当变化电流流过感应线圈时，感应线圈会产生变化磁场。变化磁场穿透感受器时，感受器发热，从而，对气溶胶形成基质进行加热，以产生气溶胶。示例性地，如图4中的(a)所示，感应线圈设置于基体121的外表面上，感受器为片、针或者销状，设置于腔室11内。当气溶胶形成制品20插入腔室11时，感受器刺入气溶胶形成制品20内部，并与气溶胶生成基质接触。从而，当感受器122发热时，热量能够有效地传递给气溶胶形成制品20，以烘烤气溶胶形成基质。示例性地，如图4中的(b)所示，感受器为金属管，设置在基体121的内表面，当气溶胶形成制品20插入腔室11时，气溶胶形成制品20直接或间接与金属管接触。从而，当金属管发热时，热量能够有效传递至气溶胶形成制品20。
在一些实施例中，气溶胶形成制品20中内置有金属片或金属针。当该气溶胶形成制品20插入腔室11时，其内置的金属片或金属针作为感受器，在感应线圈产生的变化磁场的作用下发热，以烘烤气溶胶形成基质。可以理解的是，在此实施例中，感受器为一次性的，在气溶胶形成制品20使用完后，即进行抛弃。
在一些实施例中，感受器设置于进气通道的上游，并不与气溶胶生成基质直接接触，而是当感受器发热时，热量能够有效地传递给空气，以加热空气，再通过加热之后的空气进入气溶胶形成制品20，以烘烤气溶胶形成基质。
在一些实施例中，气溶胶生成装置10还包括上盖和霍尔传感器(图未示)，该上盖用于可选择地遮挡气溶胶生成装置10的开口A。在一些实施例中，该上盖设置于外壳上，可相对与外壳滑动，通过滑动设置，使得开口A显露或关闭。在一些实施例中，上盖与外壳通过卡扣或螺纹等可拆卸连接。在使用气溶胶生成装置时，将上盖打开即可。
上盖内设置有磁铁，可以理解的是，当上盖关闭时，磁铁不与腔室11对应，可对应腔室11旁边的空间。霍尔传感器设置在外壳内，当上盖关闭时，磁铁与霍尔传感器相对应。基于霍尔传感器可以检测磁场及其变化，从而，霍尔传感器能够检测到上盖的打开或关闭。
电源14提供用于操作气溶胶生成装置10的电力。例如，电源14可以提供电力给加热器12，加热器12接收电力后发热产生加热能量。此外，电源14可以提供操作气溶胶生成装置10中所提供的其他元件所需的电力。电源14可以是可反复充电电池或一次性电池。电源14可以是但不限于磷酸铁锂(LiFePO4)电池。例如,电源14可以是钴酸锂(LiCo02)电池或钛酸锂电池。
控制器15可以控制气溶胶生成装置10的整体操作。具体地，控制器15控制电源14和加热器12的操作，还可以控制其它器件的操作。在一些实施例中，控制器15包括用于存储下述任意一个方法实施例中的控制方法对应的程序指令的存储器，还包括用于监测供电时间的监测电路或者计时器，用于检测温度的检测电路或温度传感器等。从而，实施下述任意一个方法实施例中的控制方法，计算当前时刻前第一时长内电源提供给加热器的第一累计能量，将第一累计能量与第一阈值进行比较，可准确确定加热器是否有加热失控的风险。当监测到第一累计能量大于或等于第一阈值，说明加热器所承受的能量过多，有加热失控的风险，从而控制电源减少向加热器提供功率，即减少能量供应，可有效减少加热器烧毁的情况发生，提高气溶胶生成装置的安全性。
在一些实施例中，如图5所示，气溶胶生成装置10包括雾化器16、装置本体17以及腔室11。雾化器16内设置有储液仓，以及设置在储液仓内的液态的气溶胶形成基质；部分实施例中，雾化器内部还设置有加热器，用于对液态的气溶胶形成基质进行加热雾化。部分实施例中，雾化器内部不设置有加热器，仅具有储液功能，用于与外部的加热器进行配合，来将雾化器内部的液体的气溶胶形成基质进行加热雾化。在一些实施例中，雾化器内部还可以配合超声雾化元件，通过对液态的气溶胶形成基质进行超声雾化。雾化器16可拔插地安装于腔室11中，装置本体17为雾化器16提供电力以及加热控制。
在介绍本申请的控制方法之前，先对本申请发明人所知晓的一些减少加热器加热失控的方案进行简单介绍。
在本申请发明人所知晓的一些方案中，采用温度传感器监测加热器的温度，在温度异常的情况下，进行相应的保护处理(例如停止为加热器提供功率)，以此来减少气溶胶生成装置加热器烧毁的情况发生。在本申请发明人所知晓的另一些方案中，采用开路检测模块和短路检测模块，监测电流和/或电压，当监测到过流或过压时，进行相应的保护处理(例如停止为加热器提供功率)，从而减少加热器因加热失控而烧毁。
然而，在气溶胶生成装置的使用过程中，单项指标的监测，难以准确监测加热器是否有烧毁的风险。针对上述问题，本申请一些实施例提供了一种控制方法，基于能量来监测加热器是否存在加热失控风险，可有效减少加热器因加热失控而导致损坏的情况发生。相比于采用传感器监测加热器是否加热失控的方案，以能量为监测基准，可有效拦截因传感器失效带来的风险，具有较高的可靠性。
下面结合本申请实施例提供的气溶胶生成装置的示例性应用和实施，说明本申请一些实施例提供的应用于气溶胶生成装置的控制方法。
请参阅图6，图6是本申请一些实施例提供的应用于气溶胶生成装置的控制方法的流程示意图。
如图6所示，该方法S100具体可以包括以下步骤：
S10:确定当前时刻前第一时长内电源提供给加热器的第一累计能量。
气溶胶生成装置在接收到启动加热指令后，其控制器采用控温算法(例如PID算法等)控制加热器加热，以使加热器的温度满足预先设置的温度曲线。如图7所示，温度曲线是目标温度与时间之间的关系曲线。发热器的温度首先在一个较短的时间即升温阶段内，快速的上升到预热温度(例如250℃左右)，使气溶胶形成基质被加热产生气溶胶，有效减少消费者开始吸烟的等待时间。然后，为了避免持续高温加热气溶胶形成基质造成烤糊或者烤焦的问题以及保持输出气溶胶的时间维持较长，在保温阶段维持预热温度或略低于预热温度的温度(例如230℃左右)，气溶胶可以在此阶段中生成，但通常不太可能被使用者抽吸出气溶胶生成装置之外。最后，进入抽吸阶段，抽吸阶段是指这样的阶段，在该阶段中，气溶胶可以由气溶胶生成装置以令人满意的速率生成，并且由使用者吸入。在抽吸阶段维持保温温度或略低于保温温度的温度(例如220℃左右)。可以理解的是，在其它实施例中，升温阶段完成后直接进入抽吸阶段。也即，在气溶胶生成装置升温完成后即可产生足量供抽吸的气溶胶。
以控温算法为PID算法为例进行示例性说明，温度传感器以一定频率采集加热器的温度，若当前时刻采集到的加热器温度低于温度曲线中与当前时刻对应的目标温度，则提高PWM脉冲信号的占空比，以提高电源提供给加热器的电压，使得温度升高维持在目标温度；若当前时刻采集到的加热器温度高于温度曲线中与当前时刻对应的目标温度，则减小PWM脉冲信号的占空比，以降低电源提供给加热器的电压，使得温度降低维持在目标温度。
其中，启动加热指令可以是使用者操作输入元件所产生的信号、也可以是依赖传感器的检测信号所得到的，例如通过压力传感器或者电参数传感器等来检测气溶胶形成制品20插入气溶胶生成装置10中的到位触发信号、或者通过气流传感器来检测通过使用者抽吸进行启动的信号、或者是使用者按压按键所产生的信号等。
在控制器接收到启动加热指令之后，控制器会按一定频率进行加热失控检测，加热失控检测是指检测加热器是否发生加热失控。例如，在加热过程中，若气溶胶生成装置的电路或元器件发生异常，加热器过度发热，从而发生加热失控。
在当前时刻就是正在进行加热失控检测的时刻；假设当前时刻为t，当前时刻前第一时长的时刻是指与当前时刻t间隔第一时长的时刻，第一时长可以是K秒，当前时刻前第一时长的时刻即为t-K时刻；第一累计能量是指从t-K时刻之后，到当前时刻t为止电源供给给加热器的能量。本领域技术人员可根据实际加热情况设置第一时长K，例如第一时长K为1秒或3秒。可以理解的是，第一时长的单位可以是秒或毫秒，在此不进行任何限制。
当前时刻前第一时长内电源提供给加热器的第一累计能量，可以真实直观地反映加热器在最近第一时长内所承受的能量，从而可基于第一累计能量确定加热器是否发生加热失控或具有加热失控的风险。
在一些实施例中，前述步骤S10具体包括：
S11：将当前时刻的总能量减去当前时刻前第一时长时的总能量，得到第一累计能量。
在气溶胶生成装置的使用过程中，在控制器接收到加热指令后，电源开始给加热器提供能量，当前时刻的总能量是指从控制器接收到启动加热指令、电源为加热器提供能量开始，到当前时刻t为止，由电源供给给加热器的能量的累加。当前时刻前第一时长时的总能量是指从电源为加热器提供能量开始，到t-K时刻为止，加热器所承受的总能量。第一累计能量可采用如下公式计算：
En(K)＝Etotal(t)-Etotal(t-K)
其中，K为第一时长，En(K)是当前时刻前第一时长内的第一累计能量，Etotal(t)是当前时刻的总能量，Etotal(t-K)是当前时刻前第一时长时的总能量。
可以理解的是，能量是气溶胶生成装置发热的本质，通过监测最近第一时长内加热器所承受热量的方式，可精准地对加热器进行加热失控监测，能够拦截因传感器失效带来的气溶胶生成装置烧毁的风险，具有较高的可靠性。
在一些实施例中，该方法S100还包括：
S20：计算周期T内电源提供给加热器的能量，得到周期能量。
S30：累加多个周期能量，得到总能量。
可以理解的是，在气溶胶生成装置的工作过程中，上述控温算法根据温度曲线和采集到的温度控制电源提供给加热器的功率，以使加热器的温度满足温度曲线。其中，周期T是指上述控温算法的控制周期，也称为控温周期，是指控制器中控温算法每次调整电源提供给加热器的功率(或温度)的时长，一般情况下周期T的时长在几十毫秒左右。
例如，在一个周期T内，电源提供给加热器的功率(或电压、电流)的占空比相同。在时间维度上，多个周期T的占空比不完全相同，具体可基于温差确定，这里温差是指采集到的加热器温度与温度曲线中对应的目标温度之间的差。本领域技术人员可以理解的是，确定占空比的方式也是现有已知的，这里不进行详细介绍。
周期T内电源提供给加热器的能量也称为周期能量。将启动加热时刻至当前时刻内所有周期能量进行求和计算，累加多个周期能量，即可得到当前时刻的总能量值。例如：
在周期T内，周期能量ET＝U*I*D*T，其中，U是电压，I是电流，D是占空比，T是控制周期，将单位时间(例如1s)内所有周期T的能量累加起来得到单位时间能量Ej，那么当前时刻t的总能量可采用如下公式计算：
其中，Etotal(t)是当前时刻t的总能量，j是时间标号，表示第j秒。Ej表示第j秒内电源提供给加热器的单位时间能量。
为了控制发热器的温度，同一个周期T内，占空比D相同，不同周期T的占空比不完全相同，通过周期累加求总能量的方式可以更加精准的计算电源所提供给加热器的能量，更加有效地控制发热器所承受的能量。
在一些实施例中，前述步骤S20具体包括：
S21：采集加热器的电信号参数，电信号参数包括加热器的电压和/或电流。
S22：根据电信号参数和电信号参数对应的占空比，确定周期能量。
由上可知，周期T是指上述控温算法的控制周期，是指控温算法每次调整电源提供给加热器的功率(或温度)的时长。例如，一个周期T内，占空比D相同。在时间维度上，多个周期T的占空比D不完全相同。
可以理解的是，电源提供给加热器的功率可由电信号参数表征。电信号参数可以是加热器的电压和/或电流，也可以是电压或电流的脉冲数量。
在一些实施例中，采用如图8所示的运放电路采集每个周期T内加热器的电压和电流。其中，R是采样电阻，采样电阻R与加热器串联，位于加热器所在的加热回路上。V1是采样电阻R两端的电压，V0是放大器的输出电压，放大器将电压V1放大A(放大器的放大系数)倍后输出得到V0。基于电压V0，通过欧姆定律，可计算得到流过加热器或采样电阻的电流I。从而，得到电信号参数。
然后，根据电信号参数和电信号参数对应的占空比，确定周期能量。具体地，可通过前述能量公式ET＝U*I*D*T计算周期能量。
其中，电信号参数的占空比D是高电平在一个周期内的比值，高电平所占的比值越大，占空比就越大，不同周期T的电信号参数不同；同一个周期T内，占空比D是不变的，不同周期T的占空比不完全相同，因此每个周期T能量的计算都需要获取电信号参数(周期T内加热器的电压和/或电流)以及电信号参数的占空比，以此得到不同周期T的周期能量。
示例性地，周期T1对应的电信号参数U1,I1,D1，周期T2对应的电信号参数U2，I2，D2，周期T1的能量为E1＝U1*I1*D1*T，周期T2的能量为E2＝U2*I2*D2*T。E1与E2不同。
在此实施例中，按控温算法的控制周期计算周期能量，即每调整一次功率则计算对应的能量；基于控制周期T内占空比相同，可准确计算周期能量，有利于总能量和第一累计能量的计算准确性。
在一些实施例中，前述周期T小于1秒。示例性地，周期T小于或等于100毫秒，例如周期T为60毫秒、70毫秒或80毫秒等。
在此实施例中，不同周期T所对应的占空比D不相同，周期T小于1秒，一方面，有利于精准控温，实现精密控制，另一方面，累计能量的时间跨度小，周期能量准确，进而有利于总能量和第一累计能量的计算准确性。
由上可知，第一累计能量可以真实直观地反映加热器在最近第一时长内所承受的能量，从而可基于第一累计能量确定加热器是否发生加热失控或具有加热失控的风险。在此实施例中，将第一累计能量与预先设置的阈值进行比较，具体见步骤S40。当控制器监测到第一累计能量大于或等于第一阈值，则控制器输出信号out(例如低电平)，作用于如图8所示电路中的MOS管，MOS管断开，使得加热器所在加热回路断开，即加热器断开，以防止加热失控。
S40:判断第一累计能量是否大于或等于第一阈值；
其中，第一阈值为预先设置的能量临界值。若第一累计能量大于或等于第一阈值，说明最近第一时长内提供给加热器的能量过多，加热器存在加热失控的风险。若第一累计能量小于第一阈值，说明最近第一时长内提供给加热器的能量合理，加热器不存在加热失控的风险。
示例性地，第一累计能量为E1，第一阈值为E_thr，当E1≥E_thr时，则确定最近第一时长内提供给加热器的能量过多，加热器存在加热失控的风险。当E1＜E_thr时，则确定最近第一时长内提供给加热器的能量合适，加热器不存在加热失控的风险。
S50：若第一累计能量大于或等于第一阈值，则控制电源减少或者停止向加热器提供功率。
可以理解的是，若第一累计能量大于或等于第一阈值，说明最近第一时长内提供给加热器的能量过多。为了减少发生加热失控的风险，可控制电源减少或者停止向加热器提供功率，使得加热器得到的能量少，减少或停止发热。
如图9中的(a)所示，横坐标为时间的等分点，纵坐标为最近1秒内的第一累计能量,曲线表示最近1秒的第一累计能量，直线表示最近1秒的第一阈值，第一累计能量始终小于第一阈值，电源正常向加热器提供能量，无发生加热失控的风险。
如图9中的(b)所示，横坐标为时间的等分点，纵坐标为最近1秒内的第一累计能量,曲线表示最近1秒的第一累计能量，直线表示最近1秒的第一阈值，出现第一累计能量超过第一阈值的情况，说明电源为加热器提供能量出现异常，可能具有发生加热失控的风险。
在此实施例中，当前时刻前第一时长内电源提供给加热器的第一累计能量，可以真实直观地反映加热器在最近第一时长内所承受的能量。而能量是加热器发热的机理，因此，通过将第一累计能量与第一阈值进行比较，可准确确定加热器是否有加热失控的风险。当监测到第一累计能量大于或等于第一阈值，说明加热器所承受的能量过多，有加热失控的风险，从而控制电源减少或停止向加热器提供功率，即减少或停止能量供应，可有效减少加热器烧毁的情况发生，提高气溶胶生成装置的安全性。相比于采用传感器监测加热器是否加热失控的方案，以当前时刻前第一时长的能量为监测基准，可有效拦截因传感器失效带来的风险，具有较高的可靠性。
在一些实施例中，在接收到启动加热指令后，进入升温阶段。
前述步骤S50具体包括：
S51：若第一累计能量大于或等于第一能量阈值，控制电源减少或停止向加热器提供功率，其中，第一能量阈值是根据加热器在升温阶段的能量供给特征确定的。
由上可知，在上述气溶胶生成装置的工作过程中，工作阶段包括升温阶段、保温阶段和抽吸阶段，不同的阶段有不同的温度需求。升温阶段，加热器需要在短时间内加热至气溶胶基质需要的温度,因此升温阶段对应的第一能量阈值较大。
在一些实施例中，t1时刻处于升温阶段，t1对应的第一累计能量为E1；第一能量阈值为E(thr1)；若E1≥E(thr1)，控制器控制电源减少能量供应。
在此实施例中，设置与升温阶段适应的第一能量阈值，分阶段监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。
在一些实施例中，在升温阶段完成后，进入保温阶段。
前述步骤S50具体还包括：
S52：若第一累计能量大于或等于第二能量阈值，控制电源减少向加热器提供功率，其中，第二能量阈值是根据加热器在保温阶段的能量供给特征确定的，第二能量阈值小于第一能量阈值。
保温阶段是介于升温阶段和抽吸阶段之间的时间段，气溶胶生成装置已加热至所需的温度，具有温度基础，需要相对较少的能量维持保温阶段的温度即可，因此第二能量阈值小于第一能量阈值。
在一些实施例中，t2时刻处于保温阶段，t2对应的第一累计能量为E2；第一能量阈值为E(thr2)；若E2≥E(thr2)，控制器控制电源减少能量供应。
在此实施例中，设置与保温阶段适应的第二能量阈值，分阶段监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。
在一些实施例中，在保温阶段完成后，进入抽吸阶段。
前述步骤S50具体还包括：
S53：若第一累计能量大于或等于第三能量阈值，控制电源减少或停止向加热器提供功率，其中，第三能量阈值是根据加热器在抽吸阶段的能量供给特征确定的，第三能量阈值大于第二能量阈值且小于第一能量阈值。
抽吸阶段是气溶胶生成装置的使用阶段，由于气溶胶生成装置在使用时会不间断地注入冷空气，因此抽吸阶段需要电源提供能量给加热器用以维持装置温度。受冷空气降温影响，抽吸阶段第一时长内电源提供给加热器的能量大于保温阶段第一时长内电源提供给加热器的能量，因此第三能量阈值大于第二能量阈值。可以理解的是，抽吸阶段，气溶胶形成基质也具有温度基础，抽吸阶段第一时长内电源提供给加热器的能量小于预热阶段第一时长内电源提供给加热器的能量，因此第三能量阈值小于第一能量阈值。
在一些实施例中，t3时刻处于抽吸阶段，t3对应的第一累计能量为E3；第一能量阈值为E(thr3)；若E3≥E(thr3)，控制器控制电源减少能量供应。
在此实施例中，设置与抽吸阶段适应的第三能量阈值，分阶段监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。
在上述过程中，如图10所示，将升温阶段，保温阶段和抽吸阶段的第一阈值分别设定为第一能量阈值，第二能量阈值和第三能量阈值，第一能量阈值＞第三能量阈值＞第二能量阈值。如此，分三个阶段监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。
在一些实施例中，升温阶段完成后直接进入抽吸阶段。在此实施例中，将升温阶段和抽吸阶段的第一阈值分别设定为第四能量阈值和第五能量阈值；其中，第四能量阈值是根据加热器在升温阶段的能量供给特征确定的，第五能量阈值是根据加热器在抽吸阶段的能量供给特征确定的，第四能量阈值＞第五能量阈值。如此，分两个阶段监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。
在一些实施例中，该方法S100还包括：
S60：确定当前时刻前第二时长内电源提供给加热器的第二累计能量，其中，第二时长大于第一时长。
S70：若第一累计能量大于或等于第一阈值且第二累计能量大于或等于第二阈值，控制电源减少或停止向加热器提供功率。
在控制器接收到加热指令后，当前时刻为t，当前时刻t前第二时长的时刻是指与当前时刻t间隔第二时长的时刻，第二时长可以是J秒，当前时刻前第二时长的时刻即为t-J时刻。本领域技术人员可根据实际加热情况设置第二时长J，例如第二时长J为5秒或8秒。可以理解的是，第二时长的单位可以是秒或毫秒，在此不进行任何限制。
当前时刻t前第二时长内的总能量也称作第二累计能量，从接收到启动加热指令开始累计电源提供给加热器的总能量，将当前时刻的总能量减去当前时刻前第二时长时的总能量，得到第二累计能量。第二累计能量可采用如下公式计算：
En(J)＝Etotal(t)-Etotal(t-J)
其中，J为第二时长，En(J)是第二累计能量，Etotal(t)是当前时刻t的能量，Etotal(t-J)是当前时刻前第二时长时的总能量。
在此实施例中，第二时长与第一时长不同，因此最近第二时长对应的能量阈值区别于最近第一时长对应的第一阈值也称作第二阈值。
可以理解的是，第二累计能量的具体计算方式可参照上文步骤S11、S20、S30中关于第一累计能量的具体计算方式，这里不再重复介绍。
在一些实施例中，第二时长J为5秒，第一时长K为1秒，第一累计能量为E(K),第二累计能量为E(J),第一阈值为5,第二阈值20。当E(K)≥5但E(J)≤20，或E(K)≤5但E(J)≥20时，确定未发生加热失控，不作相应控制；当E(K)≥5且E(J)≥20时，控制器控制电源减少能量供应，发热器接收的能量下降，发热器的温度下降。
在此实施例中，基于长短不同的两个最近时长内的累计能量，判断加热器所承受的能量是否超过对应的能量阈值。若两个判断结果均为超过能量阈值，则说明电源提供给加热器的能量存在异常，加热器存在加热失控的风险，减少或停止功率供给以防止烧毁。相比于采用一个最近时长的累计能量进行判断，此实施例采用一长一短两个不同最近时长进行双重保护，能够有效减少误判，有利于提高气溶胶生成装置的安全性。
综上所述，本申请实施例中控制方法通过控制器计算电源提供给加热器的第一累计能量，基于第一累计能量和第一阈值的对比结果，来进行相应的能量供给调整，精准有效地进行加热失控监测，从而拦截因为监测元器件失效导致气溶胶生成装置损坏的风险。在一些实施例中，在接收到加热指令之后，分阶段(升温阶段、保温阶段和抽吸阶段)监测加热失控风险，符合气溶胶生成装置的实际工况，使得监测更加准确。在一些实施例中，采用一长一短两个不同最近时长进行双重保护，能够有效减少误判，有利于提高气溶胶生成装置的安全性。此外，由于能量是气溶胶生成装置产生温度的根本原因，通过计算能量来监测发热器的温度，更加根本有效，能够有效拦截因为监测的单项指标满足条件但能量不满足条件而造成的气溶胶生成装置损坏问题的风险，即有效进行温度控制，减少加热器因热失控而烧毁的风险。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (10)

  1. 一种控制方法，应用于气溶胶生成装置，其特征在于，所述气溶胶生成装置包括加热器和电源，所述加热器用于加热气溶胶形成基质以产生气溶胶，所述电源用于向所述加热器提供功率；
    所述控制方法包括：
    确定当前时刻前第一时长内所述电源提供给所述加热器的第一累计能量；
    判断所述第一累计能量是否大于或等于第一阈值；
    若所述第一累计能量大于或等于所述第一阈值，则控制所述电源减少或者停止向所述加热器提供功率。
  2. 根据权利要求1所述的方法，其特征在于，所述确定当前时刻前第一时长内所述电源提供给所述加热器的第一累计能量，包括：
    将所述当前时刻的总能量减去所述当前时刻前第一时长的总能量，得到所述第一累计能量。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    计算周期T内所述电源提供给所述加热器的能量，得到周期能量；
    累加多个所述周期能量，得到所述总能量。
  4. 根据权利要求3所述的方法，其特征在于，所述计算周期T内所述电源提供给所述加热器的能量，得到周期能量，包括：
    采集所述加热器的电信号参数，所述电信号参数包括所述加热器的电压和/或电流；
    根据所述电信号参数和所述电信号参数对应的占空比，确定所述周期能量。
  5. 根据权利要求4所述的方法，其特征在于，所述周期T小于1秒。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述若所述第一累计能量大于或等于所述第一阈值，控制所述电源减少或停止向所述加热器提供功率，包括：
    若所述第一累计能量大于或等于第一能量阈值，控制所述电源减少或停止向所述加热器提供功率，其中，所述第一能量阈值是根据所述加热器在升温阶段的能量供给特征确定的。
  7. 根据权利要求6所述的方法，其特征在于，所述若所述第一累计能量大于或等于所述第一阈值，控制所述电源减少或停止向所述加热器提供功率，还包括：
    若所述第一累计能量大于或等于第二能量阈值，控制所述电源减少向所述加热器提供功率，其中，所述第二能量阈值是根据所述加热器在保温阶段的能量供给特征确定的，所述第二能量阈值小于所述第一能量阈值。
  8. 根据权利要求6所述的方法，其特征在于，所述若所述第一累计能量大于或等于所述第一阈值，控制所述电源减少或停止向所述加热器提供功率，还包括：
    若所述第一累计能量大于或等于第三能量阈值，控制所述电源减少或停止向所述加热器提供功率，其中，所述第三能量阈值是根据所述加热器在抽吸阶段的能量供给特征确定的，所述第三能量阈值大于所述第二能量阈值且小于所述第一能量阈值。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，所述方法还包括：
    确定所述当前时刻前第二时长内所述电源提供给所述加热器的第二累计能量，其中，所述第二时长大于所述第一时长；
    若所述第一累计能量大于或等于所述第一阈值且所述第二累计能量大于或等于第二阈值，控制所述电源减少或停止向所述加热器提供功率。
  10. 一种气溶胶生成装置，其特征在于，包括：
    加热器，用于加热气溶胶形成基质以生成气溶胶；
    电源，用于向所述加热器提供功率；
    控制器，所述控制器连接所述加热器和所述电源，用于执行如权利要求1-9任意一项所述的控制方法。
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CN110279153A (zh) * 2019-06-20 2019-09-27 深圳市康柏特科技开发有限公司 一种烟具的抽吸过程检测方法
CN111165900A (zh) * 2020-03-12 2020-05-19 深圳市辰昱科技有限公司 一种控制加热不燃烧电子烟的方法、装置及加热不燃烧电子烟
CN113197362A (zh) * 2021-05-28 2021-08-03 深圳市辰昱科技有限公司 一种控制加热不燃烧电子烟具的方法及烟具
CN117979847A (zh) * 2021-09-28 2024-05-03 菲利普莫里斯生产公司 用于外部加热的改善的温度曲线
WO2023166150A1 (en) * 2022-03-03 2023-09-07 Philip Morris Products S.A. Smoking device with dynamic heating profile

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