WO2024109694A1 - Appareil de génération d'aérosol et son procédé de commande - Google Patents

Appareil de génération d'aérosol et son procédé de commande Download PDF

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Publication number
WO2024109694A1
WO2024109694A1 PCT/CN2023/132647 CN2023132647W WO2024109694A1 WO 2024109694 A1 WO2024109694 A1 WO 2024109694A1 CN 2023132647 W CN2023132647 W CN 2023132647W WO 2024109694 A1 WO2024109694 A1 WO 2024109694A1
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WO
WIPO (PCT)
Prior art keywords
time
energy
heater
stage
power source
Prior art date
Application number
PCT/CN2023/132647
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English (en)
Chinese (zh)
Inventor
操广平
杨承确
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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Publication of WO2024109694A1 publication Critical patent/WO2024109694A1/fr

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Classifications

    • 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
    • A24F40/10—Devices using liquid 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
    • A24F40/20—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
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • 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
    • A24F40/51—Arrangement of sensors
    • 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
    • A24F40/85—Maintenance, e.g. cleaning
    • 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

Definitions

  • the present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device and a control method thereof.
  • Articles such as cigarettes, cigars, etc. burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these articles that burn tobacco by producing products that release compounds without burning. Examples of such products are so-called heat-not-burn products, also known as tobacco heating products or tobacco heating devices, which release compounds by heating a material without burning it.
  • the material may, for example, be tobacco or other non-tobacco products or combinations, such as a blended mixture that may or may not contain nicotine.
  • the present application provides a method for controlling an aerosol generating device, wherein the aerosol generating device comprises a heater for heating an aerosol-forming substrate to generate an aerosol and a power source for providing energy to the heater; the method comprises:
  • controlling the power source to supply energy to the heater in the current time stage comprises:
  • the power source is controlled to stop supplying energy in the current time stage.
  • an aerosol generating device comprising:
  • a heater for heating the aerosol-forming substrate to generate an aerosol
  • a power source for providing energy to the heater
  • the controller is configured to control the power source to supply energy to the heater multiple times in multiple time stages after receiving a command to start heating; in one of the time stages, control the power source to supply energy to the heater in the current time stage, including: controlling the power source to start the energy supply to the heater in the current time stage; determining the supplied energy in the current time stage; if the supplied energy reaches the set energy corresponding to the current time stage, controlling the power source to stop the energy supply in the current time stage.
  • an aerosol generating device comprising:
  • a heater for heating the aerosol-forming substrate to generate an aerosol
  • a power source for providing energy to the heater
  • the controller is configured to enter multiple time stages after receiving a command to start heating, and correspondingly control the power source to supply energy to the heater multiple times.
  • the power source is controlled to start the energy supply to the heater in the current time stage, and the energy supplied in the current time stage is determined. If the energy supplied by the power source reaches the set energy corresponding to the current time stage, the power source is controlled to stop the energy supply in the current time stage.
  • an aerosol generating device comprising:
  • a heater for heating the aerosol-forming substrate to generate an aerosol
  • a power source for providing energy to the heater
  • the controller is configured to control the power source to supply energy to the heater in multiple time stages according to the set energy and natural cooling time in each time stage after receiving the heating start instruction.
  • an aerosol generating device comprising:
  • a heater for heating the aerosol-forming substrate to generate an aerosol
  • a power source for providing energy to the heater
  • the controller is configured to control the power source to supply energy to the heater according to the set energy and natural cooling time in each time stage in a plurality of time stages of the suction operation stage;
  • the set energy and natural cooling time of at least two of the time stages are the same.
  • the aerosol generating device and control method provided by the present application after receiving the start heating instruction, are divided into multiple time stages to respectively provide multiple times of energy to the heater. Taking the control of one of the time stages as an example, the power source is controlled to start the energy supply to the heater, and the supplied energy is monitored to see whether it reaches the set energy of the current time stage. If it reaches it, the power source is controlled to stop the energy supply.
  • the power output to the heater is achieved through this control mode, which reduces or even does not rely on the real-time temperature of the heater, but is truly based on the required energy of the heater and/or the aerosol forming matrix.
  • this control mode Compared with the conventional method of relying on the real-time temperature of the heater for control, this control mode, firstly, truly controls the energy supply of the heater based on the underlying demand of the energy actually required by the aerosol forming matrix in each time stage, improves the taste of the aerosol forming matrix for inhalation, and improves the user's inhalation experience; secondly, it avoids the problem of insufficient heat absorption of the aerosol forming matrix due to the inaccurate real-time temperature of the heater.
  • FIG1 is a schematic diagram of the structure of an aerosol generating product provided in an embodiment of the present application.
  • FIG2 is a schematic structural diagram of an aerosol generating device provided in an embodiment of the present application.
  • FIG3 is a flow chart of a control method for an aerosol generating device provided in one embodiment of the present application.
  • FIG4 is a flow chart of a control method for an aerosol generating device provided in one embodiment of the present application.
  • FIG5 is a schematic diagram of a voltage regulating circuit of an aerosol generating device provided by an embodiment of the present application.
  • FIG6 is a flow chart of a control method for an aerosol generating device provided in one embodiment of the present application.
  • FIG7 is a flow chart of a control method for an aerosol generating device provided in one embodiment of the present application.
  • FIG8A is a schematic diagram of a power supply voltage in a preheating working stage provided in an embodiment of the present application.
  • FIG8B is a schematic diagram of a power supply voltage in a preheating working stage provided by an embodiment of the present application.
  • FIG8C is a schematic diagram of a power supply voltage in a preheating working stage provided in an embodiment of the present application.
  • FIG8D is a schematic diagram of a power supply voltage in a preheating working stage provided in an embodiment of the present application.
  • FIG9A is a schematic diagram of a power supply voltage during a suction operation phase provided by an embodiment of the present application.
  • FIG9B is a schematic diagram of the power supply voltage during the suction operation phase provided by an embodiment of the present application.
  • FIG9C is a schematic diagram of the power supply voltage during the suction operation phase provided by an embodiment of the present application.
  • FIG10A is a schematic diagram of a real-time temperature curve of a heater provided in one embodiment of the present application.
  • FIG10B is a schematic diagram of a real-time temperature curve of a heater provided in one embodiment of the present application.
  • FIG. 11 is a schematic diagram of a real-time temperature curve and output power of a heater provided in one embodiment of the present application.
  • FIG1 is a schematic structural diagram of an aerosol generating product provided in an embodiment of the present application.
  • the aerosol-generating article 20 comprises a filter segment 21 and a substrate segment 22 .
  • the substrate segment 22 comprises an aerosol-forming substrate.
  • An aerosol-forming substrate is a substrate capable of releasing volatile compounds that can form an aerosol, and the volatile compounds can be released by heating the aerosol-forming substrate.
  • Aerosol formation substrate can be a solid aerosol formation substrate.
  • aerosol formation substrate can include solid and liquid components.
  • aerosol formation substrate can include tobacco-containing material, which is included in the volatile tobacco flavor compounds released from the aerosol formation substrate when heated.
  • aerosol formation substrate can include non-tobacco material.
  • aerosol formation substrate can further include aerosol formation thing. The example of suitable aerosol formation thing is glycerine and propylene glycol.
  • the aerosol generated by heating the substrate segment 22 is delivered to the user through the filter segment 21, which may be a cellulose acetate filter.
  • the filter segment 21 may be sprayed with a flavoring liquid to provide a flavor, or a separate fiber coated with a flavoring liquid may be inserted into the filter segment 21 to improve the persistence of the flavor delivered to the user.
  • the filter segment 21 may also have a capsule in a spherical or cylindrical shape, which may contain a content of a flavoring substance.
  • the aerosol generating article 20 may further include a cooling section 23 disposed between the substrate section 22 and the filter section 21 for cooling the aerosol generated by the heating of the substrate section 22 so that the user can inhale the aerosol cooled to an appropriate temperature.
  • FIG2 is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application.
  • the aerosol generating device 10 includes a battery cell 101, a controller 102, and a heater 103.
  • the aerosol generating device 10 has an inner space defined by a housing, and the aerosol generating article 20 can be inserted into the inner space of the aerosol generating device 10.
  • the battery cell 101 i.e., the power source, is used to provide power for operating the aerosol generating device 10.
  • the battery cell 101 can provide power to heat the heater 103, and can provide power required to operate the controller 102.
  • the battery cell 101 can provide power required to operate the display device, sensor, motor, etc. provided in the aerosol generating device 10.
  • the battery cell 101 may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery.
  • the battery cell 101 may also be a lithium cobalt oxide (LiCoO2) battery or a lithium titanate battery.
  • the battery cell 101 may also be a rechargeable battery or a disposable battery.
  • the aerosol generating device 10 can heat the heater 103 through the power provided by the battery 101.
  • the heater 103 increases the temperature of the aerosol-forming substrate in the aerosol generating article 20 to generate an aerosol.
  • the generated aerosol is transferred to the user through the filter segment 21 of the aerosol generating article 20 for inhalation.
  • the heater 103 and the aerosol forming substrate can adopt various heating matching forms.
  • the heater 103 adopts a central heating method, and the heater 103 is in the form of a needle, a sheet, a pin, etc., inserted into the aerosol
  • the heater 103 is arranged inside the hollow cylinder of the aerosol-forming substrate, so that the outer periphery of the heater 103 is in contact with or in close contact with (as close as possible) the aerosol-forming substrate, thereby achieving heat transfer.
  • the heater 103 is usually hollow cylindrical, and the aerosol-forming substrate is arranged inside the hollow cylinder of the heater 103, so that the inner wall of the heater 103 is in contact with or in close contact with (as close as possible) the outer periphery of the aerosol-forming substrate, thereby achieving heat transfer.
  • the heater 103 may adopt a variety of heating methods, for example, heating the aerosol-forming substrate by one or more of the following methods: resistive heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion, photothermal conversion, and air heating.
  • the controller 102 can control the operation of the main components of the aerosol generating device 10.
  • the controller 102 can control the operation of the battery cell 101 and the heater 103, and can also control the operation of other components of the aerosol generating device 10.
  • the controller 102 is further configured to execute a control method of the aerosol-generating device 10 .
  • the controller 102 includes at least one processor.
  • the controller 102 may include a logic gate array, or may include a combination of a general-purpose microprocessor and a memory storing a program executable in the microprocessor.
  • the controller 102 controls the operation of the heater 103.
  • the controller 102 may control the amount of power supplied to the heater 103, the time for which power is continuously supplied to the heater 103, and stop supplying power to the heater 103.
  • the controller 102 may also monitor the state of the battery cell 101 (e.g., the remaining power of the battery cell 101), and/or may monitor the operating state of the heater 103 (e.g., the resistance change of the heater 103), and may generate a notification signal to prompt the user when necessary.
  • the aerosol generating device 10 may also include other general components.
  • the aerosol generating device 10 may include a display device for outputting visual information, and the display device may be a visual display component such as a display screen, a touch screen, a lighting component, etc.
  • the controller 102 may send information about the state of the aerosol generating device 10 (e.g., whether the aerosol generating device 10 can be used), information about the heater 103 (e.g., preheating starts, preheating is being performed, or preheating is completed), information about the battery cell 101 (e.g., the remaining power of the battery cell 101, whether the battery cell 101 can be used), information related to resetting the aerosol generating device 10 (e.g., reset time, resetting is being performed, or resetting is completed), information related to cleaning of the aerosol generating device 10 (e.g., cleaning time, cleaning is required, cleaning is being performed, or cleaning is completed), information related to charging of the aerosol generating device 10 (e.g., charging is required, charging is being performed, or charging is completed), information related to puffing (e.g., the number of puffs, puffing end notification), or information related to safety.
  • information about the state of the aerosol generating device 10 e.g., whether the aerosol generating
  • the aerosol generating device 10 may also include a vibration motor for outputting tactile feedback information, and the controller 102 may generate a vibration feedback signal by using the vibration motor, and may send the above information to the user.
  • the aerosol generating device 10 also includes an airflow sensor for detecting whether the user is inhaling and/or the intensity of the inhalation.
  • the aerosol generating device 10 may include at least one input device to control the function of the aerosol generating device 10.
  • the input device may include a button, a touch screen, etc.; the user may perform various functions by using the input device.
  • the desired function among the multiple functions of the aerosol generating device 10 may be performed by adjusting the number of times the user presses the input device (for example, once or twice), or the time the user continues to press the input device (for example, 0.1s or 0.2s); the user may also perform the function of heating the heater 103, the function of adjusting the temperature of the heater 103, the function of cleaning the space into which the aerosol generating article 20 is inserted, the function of checking whether the aerosol generating device 10 can be operated, the function of displaying the remaining power (usable power) of the battery cell 101, and the function of resetting the aerosol generating device 10 through the input device.
  • the function of the aerosol-generating device 10 is not limited thereto.
  • FIG3 is a flow chart of a control method of an aerosol generating device provided in an embodiment of the present application.
  • the controller 102 is configured to execute a control method of the aerosol generating device 10 , the method comprising:
  • Step S11 in multiple time stages after receiving the heating start instruction, correspondingly controlling the power source to supply energy to the heater 103 multiple times.
  • the controller 102 can control the heater 103 to start heating.
  • the heating process of the heater 103 includes multiple time stages, which can be distributed in the entire working stage of the preheating working stage and the suction working stage of the aerosol generating device 10, and can be distributed only in the preheating working stage or only in the suction working stage.
  • the preheating working stage refers to a working stage in which the temperature of the aerosol-forming substrate is increased to a temperature sufficient to generate a satisfactory amount of aerosol. Aerosol may be generated during this stage, but it is generally unlikely to be inhaled by the user out of the aerosol generating device 10. For example, at the end of the preheating working stage, the aerosol-forming substrate may have reached a temperature that releases volatile components contained in the tobacco.
  • the inhalation working phase refers to a working phase in which aerosol can be generated by the aerosol generating device 10 at a satisfactory rate and inhaled by the user.
  • the end time of the preheating stage is equivalent to the start time of the suction stage.
  • the aerosol generating device 10 can remind the user through components such as a vibration motor or a visual display component, reminding the user that the aerosol generating device 10 has entered the suction working stage and can perform the suction action.
  • the start heating instruction can be a signal generated by the user operating the input element, or it can be obtained by relying on the detection signal of the sensor, such as a trigger signal of the aerosol generating product 20 being inserted into the aerosol generating device 10 through a pressure sensor or an electrical parameter sensor, or a signal detected by the airflow sensor to start by the user's inhalation.
  • the controller 102 controls the power source 101 to supply energy to the heater 103 multiple times, all of which are strictly in accordance with the supply energy (also known as: set energy) corresponding to each pre-set time stage.
  • the supply energy corresponding to these multiple time stages can be pre-stored in the memory inside the aerosol generating device 10 for the controller 102 to retrieve.
  • the supply energy corresponding to these multiple time stages can also be stored in an external device connected to the aerosol generating device 10, such as a cloud server, a charging box memory, or a memory inside the aerosol generating device 10 connected thereto, etc.
  • the controller 102 can retrieve and reference it from the external memory or server during operation.
  • the set energy may be an experimental value obtained based on a large number of test experiments conducted by the applicant after the installation design of the aerosol generating device 10 is completed, in combination with the material of the specific aerosol-forming substrate, or may be an empirical value. It is understandable that the set energy may be adjusted based on the heat preservation performance of the heating module, or may be adjusted based on the heat transfer rate between the aerosol-forming substrate and the heater 103, etc.
  • the set energy of at least two time stages is different.
  • the heating demand is for the heater 103 to quickly reach the highest temperature to increase the heat transfer rate between the heater 103 and the aerosol forming substrate; and in the middle and late stages of the preheating working stage (also known as the second time stage, the insulation stage), the heating demand is to maintain the heat transfer between the aerosol forming substrate and the heater 103, so that the aerosol forming substrate can continue to absorb heat from the heater 103. Therefore, the energy set in the first time stage is much greater than the energy set in the second time stage, even as high as 8:2 or 9:1.
  • the set energy of at least one time stage in the early stage of the puffing working stage can be greater than the set energy of at least one time stage in the late stage of the puffing working stage.
  • the set energy corresponding to at least two time stages is the same.
  • the heating demand is to replenish the heat loss of the aerosol forming matrix. To ensure that the aerosol is generated at a certain rate. Since the heat loss of the aerosol-forming matrix caused by the suction action is very small, the same set energy can be provided in multiple time stages of the suction working stage to supplement the other fixed heat energy losses of the aerosol-forming matrix.
  • the heating demand is to maintain the heat transfer between the aerosol-forming matrix and the heater 103, so that the aerosol-forming matrix can continue to absorb heat from the heater 103.
  • the same set energy can also be provided, and the fixed heat energy loss of the heater 103 caused by other reasons can be supplemented at intervals, so that the temperature of the heater 103 does not drop significantly, and the heat transfer between the aerosol-forming matrix and the heater 103 can be maintained.
  • step S12 the process of controlling the power source 101 to supply energy to the heater 103 in the current time stage (step S12) is described in detail below in conjunction with FIG. 4 , which specifically includes:
  • Step S121 controlling the power source to start supplying energy to the heater 103 during the current time period.
  • the controller 102 retrieves the set energy of the current time period. According to the set energy, the controller 102 controls the battery cell 101 to provide power so as to supply the set energy to the heater 103 .
  • the power provided by the controller 102 may be the maximum real-time power that the battery cell 101 can provide; in this case, as the battery cell capacity decays, the duration of the energy supplied from the battery cell 101 to the heater 103 will also be extended.
  • the power provided by the controller 102 can also be the stable power output by the battery cell 101 after passing through the voltage regulating circuit.
  • the specific aerosol generating device 10 also includes a voltage regulating circuit coupled between the heater 103 and the battery cell 101; the voltage regulating circuit includes a boost circuit and/or a buck circuit.
  • the voltage regulating circuit shown in Figure 5. It can be understood that the voltage regulating circuit is not limited to the BUCK-BOOST conversion circuit, and can also be at least one of the BOOST conversion circuit, BUCK conversion circuit, CUK conversion circuit, ZETA conversion circuit, and SEPIC conversion circuit.
  • the process of the controller 102 providing power can be uninterrupted continuous output, so that the heat loss of the heater 103 and the aerosol forming matrix can be better supplemented.
  • the time when the controller 102 continuously outputs power only occupies a part of the current time stage, and this part is referred to as the energy supply time in this article.
  • the energy supply time is variable, and the controller 102 controls the energy supply according to the set energy of the current time stage and the real-time output power without limiting the energy supply time.
  • the energy supply time can be pre-set.
  • the controller 102 can determine the output power based on the set energy of the current time stage and the preset energy supply time.
  • the heater 103 is supplied with energy, and generally, its temperature begins to rise, and the rate of temperature rise is determined by the set energy, the actual power output, and the like.
  • the puffing working stage when the current time stage occurs synchronously with the user's puffing action, due to the frequency setting of multiple time stages in the puffing working stage, there is at least one time stage of energy supply within the time of one puffing action (about 5s), and the heat taken away by the puffing action is extremely small, which only causes some jitters in the process of temperature change of the heater 103.
  • the heat of the heater 103 and the aerosol forming matrix can still be replenished in time, so the temperature of the heater 103 can still be maintained within a temperature range without causing a large temperature drop.
  • the energy supply in multiple time stages provided in this solution is to meet the heat demand of the aerosol formation matrix in each stage, and only low-frequency energy supply is required. Therefore, the energy supply time of each time stage is ⁇ 500ms (milliseconds), preferably more than 1s or the frequency is ⁇ 2Hz; while conventional PWM control usually outputs precise power at an output frequency of about 100Hz, which is a high-frequency output, which is different from the intention of this solution.
  • Step S122 Determine the supplied energy in the current time period.
  • the controller 102 When the controller 102 outputs power, it synchronously counts the supplied energy that has been output.
  • the supplied energy can be indirectly characterized by only monitoring some of the electrical parameters or the duration of the continuous supply.
  • Step S123 determining whether the supplied energy in the current time period reaches the set energy corresponding to the current time period.
  • the controller 102 compares whether the supplied energy has reached the set energy. If not, the controller continues to supply energy. If so, the controller enters step S124.
  • Step S124 If the supplied energy reaches the set energy corresponding to the current time stage, control the power source to stop supplying energy in the current time stage.
  • the controller 102 stops supplying energy to the heater 103 for a period of time, which will be referred to as the natural cooling time herein.
  • the natural cooling time is pre-set, and is related to factors such as the heat preservation performance of the heating module, or the heat transfer requirements between the heater 103 and the aerosol forming matrix. Therefore, after completing the energy supply of the current time stage, the controller 102 stops supplying energy to the heater 103 within the preset natural cooling time, and determines by timing whether the natural cooling time reaches the cut-off time.
  • the natural cooling time may not be set directly, for example, by detecting the real-time temperature of the heater 103, to determine whether to end the natural cooling time, and the natural cooling time at this time can be changed between multiple time stages.
  • the temperature of the heater 103 naturally begins to drop. This part of the temperature loss is due to the heat loss of the matrix formed by the heater 103 and the outside world/aerosol. During the puffing stage, the heat loss caused by the puffing action may also be superimposed.
  • the current time stage also officially ends.
  • the total working time of the aerosol generating device 10 (or the preset number of puffs) has reached the preset threshold, or the controller 102 receives an instruction to end heating, then the aerosol generating device 10 ends its operation and does not enter the next time stage.
  • the next time stage (step S12'), and repeat the above steps S121-S124.
  • FIG6 and FIG7 specifically illustrate the jump process between the current time stage and the next time stage.
  • the controller 102 enters the natural cooling time of the current time stage and performs timing.
  • the natural cooling time reaches the preset deadline
  • the current time stage is ended and the next time stage is entered.
  • the controller 102 can directly perform energy supply and jump in multiple time stages according to the set energy and natural cooling time of each time stage. In this way, whether starting or stopping energy supply in the current time stage, there is no need to pay attention to the real-time temperature of the heater 103. It only needs to be strictly executed according to the setting of parameters such as the set energy and natural cooling time of each time stage.
  • the adverse interference of the temperature of the heater 103 can be eliminated, and the control is truly based on the heat required to be absorbed by the aerosol-forming matrix to generate aerosol.
  • the aerosol generating device 10 further includes a temperature sensor for detecting the real-time temperature of the heater 103.
  • the controller 102 After the controller 102 ends the energy supply of the current time period, it enters the natural cooling time of the current time period, and synchronously detects the temperature of the heater 103 during the natural cooling time.
  • the real-time temperature of the heater 103 is measured.
  • the real-time temperature meets the preset low temperature threshold (e.g., FIG. 10A-10B, T3), the current time stage is ended, and the energy supply of the next time stage is entered and started.
  • the preheating working stage t0-t2 includes multiple time stages (t0-t12), (t12-t14), (t14-t16), ...
  • the controller 102 After the controller 102 receives the instruction to start heating, it officially enters the preheating working stage and starts the energy supply of the first time stage (t0-t12). At this time, the controller 102 provides the maximum output voltage U0 to the heater 103 and continues for a certain time (energy supply time, t0-t11). The controller 102 synchronously calculates the supplied energy. When the supplied energy reaches the set value Q1 of the first time stage, the controller 102 controls the power source 101 to stop outputting power and continues for a certain time (natural cooling time, t11-t12). When the natural cooling time t11-t12 reaches the set duration of the first time stage, the first time stage ends, enters the second time stage (t12-t14) and starts power output.
  • the input voltage of the heater 103 in the first time period may remain unchanged.
  • the natural cooling time in the first time period at this time does not exceed 3 seconds.
  • the power (output voltage) provided by the controller 102 to the heater 103 is reduced at least once in the latter part of the first time period, so that while providing the heater 103 with a high-power continuous energy supply in the first time period, the heat transfer between the aerosol-forming substrate 20 and the heater 103 is further maintained by a low-power output, and the temperature of the heater 103 will not be overshot, thereby improving the user's puffing experience.
  • the temperature of the heater 103 rises rapidly from the initial temperature to the maximum temperature, and falls slightly in the form of a parabola.
  • the power adjustment in the later period of the first time stage can be implemented in various forms.
  • the input voltage of the heater 103 decreases in multiple steps over time, and the duration/reduction amplitude of each step voltage can be adjusted according to actual needs.
  • the input voltage of the heater 103 decreases in a single step over time.
  • the input voltage of the heater 103 decreases linearly over time, and it can decrease linearly with a constant slope, or it can decrease linearly with a variable slope.
  • the input voltage of the heater 103 changes in a wave-like manner over time, In other words, the input voltage of the heater 103 rises and falls.
  • the duration of the power reduction in the latter part of the first time stage (t1-t11) is between 2 and 3 seconds.
  • the controller 102 In the second time period (t12-t14), the controller 102 outputs a voltage U1 (U1 ⁇ U0) to the heater 103 and continues for a certain period of time (energy supply time, t12-t13), at which time the temperature of the heater 103 rises slightly; when the output supplied energy reaches the set value Q2 (Q2 ⁇ Q1) of the second time period, the controller 102 stops outputting power and continues for a certain period of time (natural cooling time, t13-t14), at which time the temperature of the heater 103 drops slightly. As shown in Figures 10A-10B, in the second time period (t12-t2), the temperature of the heater 103 fluctuates.
  • the operation steps of the second time stage may be repeated multiple times, for example, 3-5 times.
  • the set energy or natural cooling time settings between multiple second time stages may be the same or different. At this time, if the set energy and natural cooling time settings of multiple second time stages are the same, the temperature of the heater 103 fluctuates within a certain temperature range.
  • the total duration of multiple second time stages is between 5 and 8 seconds.
  • the aerosol-forming matrix can use this time to fully absorb heat without causing excessive aerosol generation.
  • the set energy of the first time stage accounts for more than 80% of the total set energy of the entire preheating working stage, which is conducive to the aerosol-forming substrate to quickly and sufficiently produce the desired aerosol.
  • the preheating working stage (t0-t2) also ends.
  • the suction working stage (t2-t3) begins, and the controller 102 sends a reminder message to the user that the suction working stage has begun.
  • 9A-9B are schematic diagrams showing various forms of power supply voltages during the suction operation phase.
  • the third time stage there are also multiple time stages (herein referred to as the third time stage) t21, ..., t2n, ..., t2k, where k is between 6 and 20.
  • the control steps of the third time stage are the same as those of the second time stage, but the setting of the energy and the natural cooling time may be different.
  • the total duration of the third time stage is at least 2s (seconds), or between 2.5-5s (seconds), or between 3-4s (seconds), which is specifically determined according to the heating characteristics and insulation characteristics of different heating modules.
  • the suction working stage (t2-t3) starts, and the first third time stage (t21) is started.
  • the controller 102 outputs the voltage U21 to the heater 103, and continues to supply within the energy supply time (t21-1).
  • the controller 102 synchronously calculates the supplied energy.
  • the controller 102 stops outputting power and continues the natural cooling time (t21-2).
  • the output is stopped, When the duration of the power output meets the predetermined natural cooling time, or when the real-time temperature of the heater 103 reaches the temperature threshold T3, the third time period (t21) ends and the energy supply of the second third time period (t22) is entered and started.
  • the temperature of the heater 103 starts to rise slightly until it reaches the temperature threshold T2.
  • the temperature of the heater 103 drops slightly until it reaches the temperature threshold T3.
  • the temperature of the heater 103 when the energy supply is started by using the real-time temperature of the heater 103, if there is a puffing action, during the energy supply time of the third time stage, the temperature of the heater 103 still rises, but may be affected by the puffing action, resulting in a slower temperature rise rate; during the natural cooling time of the third time stage, the temperature of the heater 103 still drops, but may be affected by the puffing action, resulting in an increased temperature drop rate.
  • the real-time temperature of the heater 103 reaches the temperature threshold T3
  • the energy supply of the next third time stage is immediately started, and the temperature of the heater 103 will immediately rise.
  • the natural cooling time ends early, and the energy supply between multiple third time stages is more compact.
  • the influence of the puffing action can be resolved, and the temperature of the heater 103 still fluctuates between the temperature range (T2-T3).
  • the control when the control is completely independent of the real-time temperature of the heater 103, if there is a puffing action, during the energy supply time of the third time stage, the temperature of the heater 103 still rises, but may be affected by the puffing action and cause the temperature rise rate to be slightly slower; during the natural cooling time of the third time stage, the temperature of the heater 103 still drops, but may be affected by the puffing action and cause the temperature drop rate to increase.
  • the energy loss taken away by the puffing action is less than the total energy supply of at least one third time stage, and therefore it will not cause a significant drop in the temperature of the heater 103, and the temperature of the heater 103 can still fluctuate within a small temperature range (T2-T3). Among them, the fluctuation amplitude of the heater 103 may be inconsistent.
  • the operation steps of the third time phase may be repeatedly executed multiple times in the suction working phase, and the jumps between multiple third time phases may refer to the jumps between t21 and t22.
  • 9A-9C show various situations of energy supply and natural cooling time between multiple third time stages.
  • the energy supply When the time is set to be different and the natural cooling time is the same, the temperature fluctuation of the heater 103 in the temperature range (T2-T3) is in the form of variable frequency.
  • the natural cooling time is related to the heat preservation performance of the heating module.
  • the temperature fluctuation of the heater 103 in the temperature range (T2-T3) is a constant frequency.
  • the natural cooling time is related to the heat preservation performance of the heating module.
  • the energy supply time is set to be the same, and the natural cooling time is also the same, at this time, the temperature fluctuation of the heater 103 in the temperature range (T2-T3) is in the form of a variable frequency, and is small at first and then large, so that sufficient aerosol can be generated in the early stage of the inhalation working stage.
  • the natural cooling time is related to the heat preservation performance of the heating module.
  • the controller 102 enters the preheating working stage after receiving the instruction to start heating.
  • the output power can be about 25W in the first time stage, and the energy supply time is about 15s.
  • the temperature of the heater 103 rises from the initial temperature to 380°C; then the energy is stopped and the natural cooling time (about 3s) of the first time stage is experienced, and 3-5 second time stages are started in sequence, and each second time stage is started.
  • the output power of the time stage is about 6W, the energy supply time is about 1s (can change according to the real-time power), and the natural cooling time is about 3s; after experiencing multiple second time stages of energy supply, the temperature of the heater 103 is about 230°C; then it enters the suction working stage, and repeats the third time stage 6-20 times.
  • the output power of each third time stage is about 5W, the energy supply time is about 1-2s (can change according to the real-time power), and the natural cooling time is about 3s, so that the temperature of the heater 103 fluctuates around 230°C in a wave-like manner until the suction working stage ends.
  • the controller 102 enters the preheating working stage after receiving the instruction to start heating.
  • the output power can be about 35W in the first time stage, and the energy supply time is about 20s.
  • the temperature of the heater 103 rises from the initial temperature to 280°C; then the energy is stopped and the natural cooling time (about 3s) of the first time stage is experienced, and 3-5 second time stages are started in sequence.
  • the output of each second time stage is about 10W.
  • the output power is about 6W
  • the energy supply time is about 1s (can change according to the real-time power)
  • the natural cooling time is about 4-8s; after experiencing multiple second time stages of energy supply, the temperature of the heater 103 is about above 240°C; then it enters the suction working stage, and repeats the third time stage 6-20 times.
  • the output power of each third time stage is about 5W
  • the energy supply time is about 5s (can change according to the real-time power)
  • the natural cooling time is about 4s, so that the temperature of the heater 103 fluctuates around 240°C in a wave-like manner until the suction working stage ends.
  • a controller 102 including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the control method of the aerosol generating device in any of the above method embodiments are implemented.
  • a computer-readable storage medium on which a computer program is stored.
  • the computer program can be completed by instructing the relevant hardware through the computer program.
  • the computer program can be stored in a non-volatile computer-readable storage medium.
  • any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory.
  • Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc.
  • Volatile memory can include random access memory (RAM) or external cache memory.
  • RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

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  • Control Of Resistance Heating (AREA)

Abstract

La présente invention concerne un appareil de génération d'aérosol et son procédé de commande. Le procédé de commande consiste à : après la réception d'une instruction d'initiation de chauffage, entrer une pluralité de phases temporelles, et commander de manière correspondante à une source d'alimentation de fournir de l'énergie à un dispositif chauffant de multiples fois ; et si l'énergie fournie atteint une énergie définie correspondant à la phase temporelle actuelle, commander à la source d'alimentation d'arrêter de fournir de l'énergie dans la phase temporelle actuelle. À partir de la chaleur requise par un substrat de formation d'aérosol dans différentes phases, une commande est effectuée, de sorte que la quantité d'un aérosol pendant le vapotage peut être satisfaite, ce qui permet d'améliorer l'expérience de vapotage d'un utilisateur.
PCT/CN2023/132647 2022-11-25 2023-11-20 Appareil de génération d'aérosol et son procédé de commande WO2024109694A1 (fr)

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Citations (7)

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US20150208727A1 (en) * 2012-12-28 2015-07-30 Philip Morris Products S.A. Heated aerosol-generating device and method for generating aerosol with consistent properties
CN109952037A (zh) * 2016-11-11 2019-06-28 莱战略控股公司 用于气溶胶递送装置的实时温度控制
CN113439881A (zh) * 2020-03-28 2021-09-28 深圳市合元科技有限公司 气溶胶生成装置及其控制方法
CN113712280A (zh) * 2016-07-26 2021-11-30 尼科创业贸易有限公司 气溶胶产生装置和使用气溶胶产生装置产生气溶胶的方法
CN114431541A (zh) * 2020-11-04 2022-05-06 深圳市合元科技有限公司 气溶胶生成装置及其控制方法
CN114631647A (zh) * 2020-12-16 2022-06-17 比亚迪股份有限公司 电子烟及其加热方法、存储介质、电子设备
US20220248769A1 (en) * 2019-07-15 2022-08-11 Shanghai New Tobacco Product Research Institute Co., Ltd. Temperature control method, aerosol generation apparatus and aerosol generation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150208727A1 (en) * 2012-12-28 2015-07-30 Philip Morris Products S.A. Heated aerosol-generating device and method for generating aerosol with consistent properties
CN113712280A (zh) * 2016-07-26 2021-11-30 尼科创业贸易有限公司 气溶胶产生装置和使用气溶胶产生装置产生气溶胶的方法
CN109952037A (zh) * 2016-11-11 2019-06-28 莱战略控股公司 用于气溶胶递送装置的实时温度控制
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CN113439881A (zh) * 2020-03-28 2021-09-28 深圳市合元科技有限公司 气溶胶生成装置及其控制方法
CN114431541A (zh) * 2020-11-04 2022-05-06 深圳市合元科技有限公司 气溶胶生成装置及其控制方法
CN114631647A (zh) * 2020-12-16 2022-06-17 比亚迪股份有限公司 电子烟及其加热方法、存储介质、电子设备

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