WO2019192226A1 - Dispositif de génération d'aérosol et son procédé de commande - Google Patents

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

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Publication number
WO2019192226A1
WO2019192226A1 PCT/CN2018/125665 CN2018125665W WO2019192226A1 WO 2019192226 A1 WO2019192226 A1 WO 2019192226A1 CN 2018125665 W CN2018125665 W CN 2018125665W WO 2019192226 A1 WO2019192226 A1 WO 2019192226A1
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WIPO (PCT)
Prior art keywords
temperature
heating
aerosol generating
time
dry burning
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PCT/CN2018/125665
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English (en)
Chinese (zh)
Inventor
罗建鹏
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赫斯提亚深圳生物科技有限公司
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Publication of WO2019192226A1 publication Critical patent/WO2019192226A1/fr

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    • 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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present invention relates to an aerosol generating device, and more particularly to an aerosol generating device having anti-dry control.
  • Aerosol generating devices are electronic products that mimic traditional cigarettes, with a look, smoke, taste and feel similar to traditional cigarettes.
  • the electronic cigarette heats the aerosol generating matrix (such as smoke oil, smoke liquid) to form an evaporate by non-combustion heating, and mixes with air to form an aerosol for the user to suck.
  • the aerosol generating matrix such as smoke oil, smoke liquid
  • e-cigarette Since e-cigarette does not need to burn tobacco to produce tobacco smoke, it does not produce harmful substances such as carbon monoxide and tobacco tar, which can affect human health, and can reduce the harm to users' health, thereby being widely accepted as a tobacco substitute.
  • the heating method of the electronic cigarette on the market generally adopts a manual switch or a gas sensitive switch, and each time the user sucks, the heating component is activated to directly heat the aerosol generating matrix from the ambient temperature to an aerosol generating which can form an evaporant. temperature.
  • the aerosol generation temperature is generally as high as 300°.
  • the aerosol can be absorbed instantly/in time. It takes a short time to reach the aerosol generation temperature from the ambient temperature, and the power requirements for the heating and power supply components are high. Bring some problems.
  • the circuit continues to work, so that the heating component in the atomization assembly is dried due to the sudden increase in temperature due to the lack of smoke liquid. It burns, so that harmful gases and burnt smell are inhaled into the human body, which is harmful to human health. In addition, the rapid generation of heat is transmitted to the rest of the electronic cigarette, and it is easy to burn electronic cigarettes or burn human skin.
  • the present invention provides a control method for an aerosol generating apparatus which performs dry burning detection after the end of one suction and before the start of the next suction.
  • the dry burn detection is performed after a set time period of 2 seconds after the end of one suction; the set duration is preferably in the range of 1-5 seconds.
  • the temperature/resistance of the heating member is detected before the dry burning detection is performed, and the dry burning detection is performed when the temperature/resistance of the heating member is less than a set temperature/resistance.
  • a preferred range of the set temperature value or the temperature value corresponding to the set resistance is an ambient temperature to 200 ° C, such as 150 ° C.
  • the dry burn detection comprises the steps of: providing a maximum power to the heating component over a period of time, and measuring a temperature/resistance change of the heating component during the time period, if the temperature of the heating component / If the resistance changes more than a threshold, then it is judged that dry burning occurs, otherwise it is judged that dry burning does not occur; or if the temperature/resistance change of the heating member exceeds a threshold for M consecutive times, it is judged that dry burning occurs, otherwise judged No dry burning occurred, in which M was greater than 1; when it was judged that dry burning occurred, the aerosol generating device stopped working.
  • the period of time cannot exceed the length of time during which the heating element is raised from the temperature at the set time to the main operating temperature, but greater than the minimum length of the temperature/resistance change rate of the heating member.
  • the preferred range of the time period is 40 ms to 100 ms.
  • the preferred range of the time period is 40 ms to 100 ms.
  • the dry burning detection is: performing dry burning detection every other set time, and if the dry burning detection is continuously performed N times, the aerosol generating device stops working, wherein N is greater than 1. Integer.
  • the present invention also provides an aerosol generating heating method for an aerosol generating apparatus to heat an aerosol generating substrate contained in an aerosol generating article by a heating member, the aerosol generating heating method comprising the steps of:
  • the start signal provides a power to the heating component, raises the temperature of the heating component to a main operating temperature; stops supplying the power to the heating component according to the stop signal; and receives the next suction start after receiving the stop signal Dry burn test before signal.
  • the present invention provides an aerosol generating system comprising: an aerosol-generating article comprising an aerosol generating matrix; an aerosol generating device for fitting the aerosol-generating article; heating a component for heating the aerosol generating matrix; wherein the heating component may be contained in an aerosol generating article, or in an aerosol generating device, or both; a switching component that outputs an activation signal according to a user operation And/or a stop signal, the switch component being any one or a combination of a pneumatic switch, a push button switch, and a touch switch; a control component included in the aerosol generating device for aligning according to the activation signal
  • the heating component provides a power to raise the temperature of the heating component to a main operating temperature; stopping the supply of the power to the heating component according to the stop signal; receiving the next pump after receiving the stop signal Dry burn detection is performed before the start signal is applied.
  • the present invention also provides an aerosol generating device for receiving an aerosol-generating article and heating an aerosol-generating substrate contained in the aerosol-generating article, the aerosol-generating device comprising: a switch member according to The user operates an output enable signal and/or a stop signal, the switch component being any one or a combination of a pneumatic switch, a push button switch, and a touch switch; and a control component for providing a power to the heating component according to the start signal, Heating the temperature of the heating component to a main operating temperature; stopping providing the power to the heating component according to the stop signal; performing dry burning after receiving the stop signal and receiving a next suction activation signal Detection.
  • the heating member is disposed in the aerosol generating device, or the heating member is disposed in the aerosol-generating article.
  • the present invention also provides a control module for an aerosol generating apparatus, comprising: a processor configured to execute an instruction to enable the processor to: provide a power to a heating component based on an activation signal, The temperature of the heating component is raised to the main operating temperature; the power is supplied to the heating component according to the stop signal; and the dry burning detection is performed after receiving the stop signal and before receiving the next suction activation signal.
  • the control module also includes a memory coupled to the processor.
  • the control module can also include a switch coupled to the processor, the switch configured to output the enable signal and/or stop signal in accordance with user operations.
  • the present invention also provides a non-transitory computer readable storage medium comprising instructions that, when executed by a processor, enable the processor to: provide a power to a heating component based on an activation signal, The temperature of the heating component is raised to a main operating temperature; the power is supplied to the heating component according to a stop signal; and the dry burning detection is performed after receiving the stop signal and before receiving the next suction activation signal.
  • the invention arranges the dry burning detection during the interval of the user's suction, and the suction interval is an idle period, and the user does not perform the dry burning detection when sucking, thereby solving the delay effect and the user experience is good. Moreover, the dry burning detection is performed before the user next suction, and the power is supplied to the heating component, so that the heating component does not cool down to the ambient temperature, which is equivalent to the effect of preheating for the next suction, and can be quickly applied for the next suction. The ground is heated to form an aerosol, reducing the waiting time for reheating. Better user experience.
  • Figure 1 is a schematic illustration of an aerosol generating system in accordance with one embodiment of the present invention.
  • FIG. 2 is a schematic diagram of functional blocks of an aerosol generating apparatus according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of functional blocks of a control unit in accordance with an embodiment of the present invention.
  • FIG. 4 is a flow chart showing a heating method according to an embodiment of the present invention.
  • Fig. 5 is a timing chart showing the temperature of the heating unit in operation of an embodiment of the present invention.
  • Fig. 6 is a timing chart showing temperature when the heating unit is operated in another embodiment of the present invention.
  • each cigarette is defined as one suction, and the duration of each suction continues from the beginning of the suction to the end of the suction.
  • the user inhales forcefully, as the start of the suction; the user stops inhaling and considers the end of the suction.
  • the suction interval time refers to the interval between adjacent two suctions.
  • the term "dry burning” means that the smoking oil in the smoking article has been exhausted, or the smoking article is incapable of contacting the heating member due to malfunctioning of the smoking member, and the heating member is dry-burned due to a sudden rise in temperature due to lack of the smoking oil.
  • the start signal refers to a temperature rise control signal
  • the stop signal refers to a temperature drop control signal.
  • the start signal and the stop signal are not limited to literal meaning, that is, the start signal includes but is not limited to the meaning of “output at maximum power”, and may also have the meaning of “output at a certain power”; the stop signal includes but is not limited to “stop output power” "The meaning of”. For example, “stopping the supply of the power to the heating means according to the stop signal", except for the meaning of "stopping the output of the power”, does not exclude “outputting another power different from the power to the The meaning of the heating element.
  • the start signal may include only the suction start signal, and may include a warm-up start signal and a suction start signal, and the warm-up start signal means that the temperature rises to a certain preheating temperature (below the main operating temperature).
  • the suction start signal means that the user starts pumping, the temperature rises to the main working temperature
  • the stop signal includes the suction stop signal, meaning that the user is pumping up, the temperature drops, and it can be lowered to standby.
  • the temperature can also drop to ambient temperature.
  • an aerosol generating system 1 of the present invention includes an aerosol generating device 10 and an aerosol generating device 20, which is used in combination with an aerosol generating article 20 containing an aerosol generating substrate 21, by heating an aerosol.
  • the aerosol generating matrix 21 contained in the article 20 is produced to produce an aerosol.
  • aerosol generating device 10 refers to a device that cooperates with aerosol generating article 20 (e.g., contains or receives aerosol generating article 20) and interacts with aerosol generating matrix 21 to produce an aerosol.
  • the aerosol generating device 10 may be a "smoke gun" type article.
  • the aerosol-generating article 20 can be a smoking article, and refers to an article comprising an aerosol-generating matrix 21.
  • the aerosol-generating article 20 is mated with the aerosol-generating device 10 (e.g., inserted or placed into the aerosol-generating device 10) such that the aerosol-generating matrix 21 and the aerosol-generating device 10 can interact to produce an aerosol.
  • the aerosol-generating article 20 can be disposable or supplemental in that the aerosol is continuously aspirated by the user replacing the disposable smoking article or manually adding an aerosol generating matrix 21 such as a smoke oil.
  • the aerosol-generating substrate 21 refers to a matrix of a volatile compound which forms an aerosol under certain conditions, which may be in a liquid state or in a solid state.
  • the aerosol-generating matrix 21 is part of an aerosol-generating article 20, such as a portion of a smoking article.
  • it is usually required to form an evaporate under the condition of heating to an aerosol generating temperature, and the evaporating substance is mixed with air to finally form an aerosol under certain conditions.
  • the composition of the aerosol-forming substrate 21 in liquid form comprises heating the fumed oil which can be converted into a gaseous state, and the fuming oil may include glycerin (glycerin), propylene glycol, flavor (or fragrance) and nicotine (nicotine), among the above-mentioned smoke oils. Nicotine and/or flavors can be replaced by tobacco extracts. Smoke oil may also not contain nicotine.
  • the fumed oil which can be converted into a gaseous state
  • the fuming oil may include glycerin (glycerin), propylene glycol, flavor (or fragrance) and nicotine (nicotine), among the above-mentioned smoke oils. Nicotine and/or flavors can be replaced by tobacco extracts. Smoke oil may also not contain nicotine.
  • the aerosol generating device 10 includes a switch member 100, a power supply member 200, a heating member 300, and a control member 400.
  • the control member 400 is electrically connected to the switch member 100, the power supply member 200, and the heating member 300, respectively. 200 is used to provide electrical energy.
  • the power supply part 200 is for supplying electric power to the heating part 300 according to the control of the control part 400. Specifically, the power supply unit 200 adjusts the power output and output time to the power of the heating unit 300 according to the control of the control unit 400.
  • Power supply component 200 can be any suitable power source, including corresponding charging, powering circuits, and components.
  • the power supply component 200 can be a battery, such as a lithium ion battery, a lithium iron phosphate battery, a lithium manganese battery, a nickel chrome battery, or a nickel metal hydride battery.
  • the heating member 300 is for heating the aerosol generating substrate 21 contained in the aerosol-generating article 20 to form an evaporant.
  • the heating member 300 heats up the aerosol generating substrate 21 in accordance with the power supplied from the power supply member 200 (controlled by the control member 400).
  • the main operating temperature of the heating member 300 means that the heating member 300 heats the aerosol generating substrate 21 contained in the corresponding aerosol-generating article 20 to form an evaporating substance, and causes the generated aerosol to have a heating temperature required for a better use experience. .
  • the main operating temperature can be either a temperature value or a temperature range.
  • the control component 400 continuously monitors the temperature of the heating component 300 and controls the temperature of the heating component 300 as far as possible beyond the main operating temperature, or as much as possible within a safe range.
  • the heating member 300 may be made of a material having a temperature coefficient of resistance characteristic, the resistance of the material having a corresponding relationship with the temperature of the material, and the control member 400 being obtainable according to the measured resistance value of the heating member 300.
  • the temperature of the heating member 300 corresponding to the resistance value is used to control the temperature of the heating member 300 or to control the power supplied to the heating member 300.
  • the material of the heating member 300 includes, but is not limited to, platinum, copper, nickel, titanium, iron, ceramic-based PTC material, polymer-based PTC material, etc., and the resistance value thereof varies with the temperature of the heating member 300 (for example, for a positive temperature coefficient)
  • the material increases in resistance as the temperature increases, and the resistance decreases as the temperature rises with respect to the negative temperature coefficient material. Therefore, the temperature variation parameter of the heating member 300 can be measured by monitoring the change in resistance of the heating member 300.
  • the heating component 300 can also employ conventional heat generating materials that do not have a temperature coefficient of resistance characteristic, in which case an additional temperature sensor needs to be added alongside the heating component to obtain the temperature of the heating component.
  • the heating component 300 may not be disposed within the aerosol-generating device 10, but rather within the aerosol-generating article 20 where the aerosol-generating article 20 is mated (eg, inserted or placed) into the aerosol-generating device 10 At this time, the heating member 300 is electrically connected to the power feeding member 200 and the control member 400.
  • the aerosol generating device 10 and the aerosol-generating product 20 may be provided with a heating member 300.
  • the present invention does not limit the specific arrangement of the heating member 300.
  • the switch unit 100 outputs an activation signal or a stop signal to the control unit 400 in accordance with the user's operation.
  • the switch component 100 can be, for example, a pneumatic switch, or a gas sensitive switch, or an air differential pressure sensing switch.
  • the pneumatic/gas sensitive/air differential pressure sensing switch can detect the air pressure difference caused by the user's inhalation causing air flow in the device, and output a corresponding start signal or stop signal according to the monitoring result.
  • the control unit 400 controls the power supply unit 200 to output power to the heating unit to start heating.
  • the pneumatic switch continuously monitors whether the gas flows into the device. When the gas no longer flows into the device (meaning that the user has finished pumping), the stop signal is output, and the control unit 400 receives the stop signal and controls the signal.
  • the power supply component 200 stops/outputs power to the heating component at a lower power.
  • the start signal refers to a signal that the control unit 400 controls the temperature rise of the heating unit 300. After receiving the start signal, the control unit 400 controls the power supply unit 200 to output at maximum power or first power (below the maximum power but greater than zero).
  • the stop signal refers to a signal that the control member 400 controls the temperature drop of the heating member 300, and controls After receiving the stop signal, component 400 controls power supply component 200 to stop output power (ie, output zero power) or output second power (below maximum power but greater than zero), causing temperature of heating component 300 to drop, preferably at zero power output.
  • the start signal is a temperature rise control signal and the stop signal is a temperature drop control signal.
  • the start signal or the stop signal may respectively include one or more signals.
  • the start signal may include a first start signal and a second start signal
  • the stop signal may include a first stop signal and a second stop signal.
  • the switch component 100 is a pneumatic switch.
  • the pneumatic switch When the user starts pumping, the pneumatic switch outputs a first start signal (also referred to as a suction start signal) due to the air pressure difference, and the control component 400 receives the first start signal.
  • the control power supply unit 200 outputs the maximum power to the heating unit 300, and the heating unit 300 rapidly rises from the ambient temperature to the main operating temperature.
  • the pneumatic switch At the end of the user's pumping, the pneumatic switch outputs a first stop signal (also referred to as a suction stop signal) because there is no air pressure difference, and after the control unit 400 receives the first stop signal, the control power supply unit 200 stops outputting power to the heating unit 300.
  • the heating component 300 begins to cool down quickly.
  • the control component 400 controls the power supply component 200 to output a lower power to the heating component 300.
  • the heating component 300 does not directly cool down to the ambient temperature, but maintains a standby temperature lower than the main operating temperature. Temperature.
  • the switch component 100 is a manual switch, such as a button or touch switch, that outputs a start signal or a stop signal depending on whether the user presses or touches the switch component 100.
  • the first start signal (which may also be referred to as a suction start signal) is output, and when the switch component 100 is pressed or touched again, the first stop signal is output (also referred to as suction). Stop signal).
  • the user outputs a first activation signal when the user presses or touches the switch member 100 and maintains a pressed or touched state, and outputs a first stop signal when the user stops pressing or touching the switch member 100.
  • the switch closing time does not exceed a certain threshold (such as 0.3 seconds), indicating that the switch is accidentally touched, does not output the start signal, and the heating component does not work; if the switch closing time exceeds the threshold (such as 0.3 seconds), it indicates that the switch is open.
  • a certain threshold such as 0.3 seconds
  • the switch component 100 can also be used in combination with a pneumatic switch, a push button switch, and a touch switch, or other types of switching elements.
  • the present invention does not limit the specific composition of the switch component 100.
  • the switch component 100 when the user presses or touches the switch component 100, the first start signal is output, and after the control component 400 receives the first start signal,
  • the control power supply unit 200 outputs the first power or the maximum power to the heating unit 300, which is a warm-up phase (in this embodiment, the first start signal may be referred to as a warm-up enable signal).
  • the control unit 400 controls the power supply unit. 200 is output to the heating component 300 at maximum power or second power, and the heating component 300 quickly reaches the main operating temperature.
  • the triggering pneumatic switch After the user suctions, the triggering pneumatic switch outputs a first stop signal (also referred to as a suction stop signal), and after receiving the first stop signal, the control component 400 controls the power supply component 200 to stop outputting power to the heating component, or controls The power supply unit 200 outputs power to the heating unit at a third power (less than the maximum power but greater than zero) and remains at a standby temperature.
  • a first stop signal also referred to as a suction stop signal
  • first power the “second power”, and the “third power” used above are all lower than the maximum power but greater than zero, and their power values may be different or the same, and the invention is not limited.
  • control component 400 continuously monitors the temperature of the heating component 300 and controls the temperature of the heating component 300 as far as possible beyond the main operating temperature, or as much as possible within a safe range.
  • control unit 400 controls the power supply unit 200 to output electric energy to the heating unit 300 to change the temperature of the heating unit 300 according to the output signal of the switching unit 100 and/or the temperature information or the resistance information of the heating unit 300.
  • control unit 400 includes a storage unit 410 and a main control unit 420.
  • the main control unit 420 can obtain a corresponding temperature parameter by detecting the magnitude of the resistance of the heating component 300.
  • a separate temperature detecting unit such as a temperature sensor, may be installed adjacent the heating component 300. A temperature sensor is used to sense the temperature of the heating element 300.
  • memory unit 410 may include one or more memory devices such as RAM, ROM, flash memory, or combinations thereof.
  • the storage unit 410 also stores instructions, a relationship between the resistance value of the heating component and the temperature, and one or more thresholds (and/or parameter values).
  • the memory can store instructions that, when executed by the processor, enable the processor to perform operations in accordance with aspects of the present invention, such as one or more of the operations described in FIG.
  • the main control unit 420 controls the power supply unit 200 to output power to the heating unit 300 or to stop the output power according to the detected resistance value of the heating unit 300 and the information supplied from the storage unit 420 according to the output signal of the switching unit.
  • the main control unit 420 can include one or more processors.
  • the processor can be connected to the memory 410.
  • the processor can be configured to access or receive instructions 411 in memory 410, a relationship 412 between the resistance values of the heating components and the temperature, and/or one or more thresholds 413 (and/or parameter values).
  • the processor can also include another memory (not shown), such as a cache or other local memory.
  • the processor can be configured to execute software (such as a program represented by one or more instructions) stored in a respective memory 410, such as a non-transitory computer readable storage medium.
  • a processor (such as one or more processors) can be configured to execute instructions 411 to enable the processor to perform one or more operations as shown in FIG.
  • control component 400 is further configured to detect whether the heating rate of the heating component 300 at a certain power is greater than a heating rate threshold, thereby determining whether the aerosol generating matrix 21 contained in the aerosol-generating article 20 has been Depletion or smoking article is unable to contact the heating member due to malfunctioning smoke oil, stopping the heating member 300 when it is greater than the heating rate threshold, preventing the heating member 300 from dry burning, or stopping heating when the heating rate is continuously higher than the heating rate threshold for a plurality of times The operation of the component 300 prevents the heating component 300 from dry burning.
  • the heating rate of the heating member 300 at the same power is faster than the rate at which the aerosol generating substrate 21 is saturated, so that the temperature rising rate threshold of the heating member 300 can be set, and the heating rate can be set.
  • the threshold may be determined according to the material including the heating member 300, the structure of the aerosol-generating article 20, and the like.
  • the heating rate of the heating member 300 determines whether to dry or not
  • there may be other detection methods for determining the dry burning or not such as detecting the rate of change of the resistance value of the heating member at a certain power, if the resistance value changes. If the severity exceeds a threshold, it is judged that dry burning has occurred. It is also possible to determine whether dry burning has occurred by detecting whether the current operating voltage of the heating element reaches a preset dry burning voltage threshold.
  • FIG. 4 is a flow chart showing an aerosol generating and heating method according to an embodiment of the present invention, which is applied to the aerosol generating system 1 and is specifically controlled by the control unit 400 of the aerosol generating device 10. After the aerosol-generating article 20 is combined with the aerosol generating device 10, the heating method is used to heat the aerosol-generating substrate 21 in the aerosol-generating article 20.
  • the heating method comprises the following steps:
  • step S100 the switch unit 100 outputs a corresponding start signal according to the start operation of the user, and supplies it to the control unit 400 to step S110.
  • the switch component 100 is a pneumatic switch, or a gas sensitive switch, or an air differential pressure sensing switch.
  • the pneumatic/gas sensitive/air differential pressure sensing switch monitors the air pressure difference caused by the user's inhalation causing air flow in the device, and outputs a first activation signal (suction activation signal) to the control unit 400 according to the monitoring result.
  • the pneumatic switch continuously monitors whether the gas is flowing into the device, and if the gas continues to flow into the device (meaning the user continues to pump), the first start signal is maintained.
  • the switch component 100 is a manual switch, such as a button or a touch switch, and the user presses or touches the switch component 100 while smoking, and outputs a first activation signal (suction activation signal); or, the user presses Or the time of touching the switch exceeds a threshold (such as 0.3 seconds), which indicates that the open relationship is intentionally operated, and the first start signal is output.
  • a first activation signal suction activation signal
  • a threshold such as 0.3 seconds
  • the switch component 100 is a combination of a pneumatic switch and a push button switch/touch switch.
  • the user presses or touches the switch for the first time, outputs the first start signal (preheat start signal), starts warming up, and after the indicator light is displayed or the user is notified by vibration, the user starts to pump.
  • the pneumatic switch is triggered to output a second start signal (pump start signal).
  • the warm-up enable signal is not triggered by the push button switch/touch switch, but instead triggers an output to the control component 400 when the aerosol-generating article mates with the aerosol-generating device.
  • step S110 the control unit 400 controls the heating unit 300 to perform heating according to the activation signal of the switching unit 100, and raises the temperature of the heating unit 300 to the main operating temperature at which the aerosol is generated, to step S120.
  • control unit 400 controls the power supply unit 200 to output power to the heating unit 300 to increase the temperature of the heating unit 300, while the control unit 400 continuously monitors the temperature (or resistance value) of the heating unit 300, and adjusts the output power of the power supply unit 200 as appropriate.
  • the heating component 300 is maintained at the main operating temperature of the corresponding aerosol-generating article 20.
  • the switch component 100 is a pneumatic switch
  • the user activates the pneumatic switch to generate a first activation signal (pump activation signal) upon pumping, and after the control component 400 receives the first activation signal from the pneumatic switch, the power supply component 200 is controlled to
  • the heating component 300 outputs a power, preferably a maximum power, such that the heating component 300 rises from ambient temperature to a main operating temperature (e.g., 300 ° C) in the shortest amount of time to produce an aerosol.
  • a main operating temperature e.g. 300 ° C
  • the switch member 100 is a manual switch
  • the user presses or touches the switch member 100 while smoking, and outputs a first activation signal (suction activation signal).
  • the control component 400 controls the power supply component 200 to output a power, preferably maximum power, to the heating component 300 such that the heating component 300 rises from the ambient temperature to the main operating temperature (eg, 300 in the shortest time). °C), generating an aerosol.
  • the user outputs a first activation signal (warm-up activation signal) when the switch member 100 is pressed or touched, and the control unit 400 receives the first
  • the control power supply unit 200 outputs the first power or the maximum power to the heating unit 300, which is a preheating stage.
  • the preset temperature is reached, the user can be informed by the indicator light or by vibration to complete the warm-up.
  • the user starts pumping, triggers the pneumatic switch, and outputs a second start signal (pump start signal).
  • the control power supply unit 200 outputs the maximum power or the second power to the heating unit 300.
  • the heating component 300 quickly reaches the main operating temperature.
  • the switch member After reaching the main operating temperature, the switch member maintains an output suction activation signal if the user continues to pump.
  • the control unit 400 maintains the temperature of the heating unit 300 at the main operating temperature by controlling the power output to the heating unit 300.
  • step S120 the switch unit 100 outputs a corresponding stop signal to the control unit 400 in accordance with the stop operation of the user, to step S130.
  • the switch member 100 is a pneumatic switch
  • the pneumatic switch when the user stops pumping, the pneumatic switch cannot detect the pressure difference, that is, outputs a first stop signal (suction stop signal) to the control unit 400, and the control unit 400 controls the heating unit.
  • the heating is stopped, that is, the power output of the power supply unit 200 is stopped to the heating unit 300, and the heating unit 300 has no power input (that is, there is no standby temperature phase).
  • the temperature of the heating element drops from the main operating temperature.
  • the control unit 400 controls the power supply unit 200 to output to the heating unit 300 at a third power. This means that at the end of the user's pumping, the heating element 300 does not directly cool down to ambient temperature, but rather remains at a standby temperature below the main operating temperature.
  • the switch member 100 is a manual/touch switch
  • the first start signal suction start signal
  • First stop signal plunge stop signal
  • the control unit 400 controls the power supply unit 200 to stop outputting power or output the third power to the heating unit 300.
  • the switch member 100 includes both the manual switch and the pneumatic switch
  • the pneumatic switch when the user suction ends, the pneumatic switch is triggered to output a first stop signal (suction stop signal), and the control unit 400 receives the first stop. After the signal, the power supply unit 200 is controlled to stop the output power, or to output power to the heating unit at the third power.
  • Dry burning means that the smoke oil in the smoking article has been exhausted, or the smoking article cannot contact the heating member due to the failure of the smoking oil, and the heating member is dry-burned due to the sudden rise in temperature due to lack of the oil.
  • the heating rate of the heating member 300 during dry burning is faster than the temperature rising rate when the aerosol generating substrate 21 is saturated. Therefore, the temperature rising rate threshold of the heating member 300 can be set to detect whether the heating rate of the heating member 300 is greater than the heating rate threshold. Here, it is judged whether or not the aerosol generating substrate 21 has been exhausted, which is a dry burning detecting method.
  • the temperature increase rate threshold value can be determined according to the material of the heating member 300, the composition of the aerosol generating substrate 21, the structure of the aerosol generating product 20, and the like.
  • the dry burn detection is started: heating with a certain power (for example, maximum power) for a certain time (for example, 80 ms), detecting the temperature of the resistance wire, and calculating The magnitude of the temperature change (corresponding to the slope of the detected temperature rise curve), if the temperature change rate exceeds a threshold, the dry burn is judged, otherwise it is judged that dry burning does not occur.
  • a certain power for example, maximum power
  • the dry burn is judged, otherwise it is judged that dry burning does not occur.
  • the dry burning detection method may have other methods besides the above method of detecting the heating rate of the heating member, such as detecting the resistance increase rate of the heating member (corresponding to detecting the slope of the resistance rising curve), if the resistance value If the rate of increase exceeds a threshold, then dry burning is judged, otherwise it is judged that dry burning does not occur.
  • the invention does not limit the specific method of dry burning detection.
  • the present invention does not perform dry burn detection when the user pumps, but places the dry burn detection time during the temperature drop (ie, after the end of the suction), and before the user next suction (ie, at the switch member 100). Before the suction start signal is output again).
  • the heating element is in the rapid heating stage during the pumping, there is no need to additionally give the heating part power, but the dry burning detection during the suction will bring the user experience delay, because the dry burning detection needs the detection and calculation of the control part, and needs A certain processing time.
  • the dry burning test is placed in the idle time period (the period during which the user does not pump, that is, the user draws between the two times). Although it is necessary to additionally apply power to the heating component, this does not affect the smoking effect, and the user does not feel it. The delay of dry burning does not affect the user experience.
  • the present invention treats each user's cigarette as a single puff.
  • the control unit controls the power supply unit to supply the heating unit with maximum power and heats up. At the end of each pumping, the supply of power to the heating element is stopped and the heating element naturally cools down.
  • the user's duration of each puff is about 1 to 2 seconds; the interval between the second and the first puffs (or between each puff) is on average about 6 seconds.
  • the power supply component continues to provide power to the heating components, maintaining the temperature of the heating component 300 at the main operating temperature; most of the time, the user is at intervals Time (such as 6 seconds) only take a cigarette.
  • the dry burn detection is performed during the above-described interval period, that is, the idle period after one suction and before the next suction. During this time period, the user does not smoke, and the dry burn test does not have a delay effect on the user.
  • 2 seconds after the end of each suction is set as the start time of the dry burn detection, that is, 2 seconds after the switch member outputs the suction stop signal (here 2 seconds is only a time example, the present invention Not limited to this), start dry burning detection. If the result of the test is dry burning, the heating is stopped and the user is informed by the indicator light or by vibration that the aerosol-generating article needs to be replaced or an aerosol-generating matrix is added. If the test result is that there is no dry burning, continue to wait for the user's next pumping. Or, after several consecutive (such as 5 times) dry burning test results, dry burning occurs, and heating is stopped.
  • the 2 seconds after each puff is set as the start time of the dry burn detection, wherein the setting of 2 seconds is based on the average time per two puncture intervals of about 6 seconds.
  • the setting of 2 seconds is based on the average time per two puncture intervals of about 6 seconds.
  • 3 seconds or 4 seconds after each suction is also possible.
  • the preferred range is 1-5 seconds.
  • the temperature of the heating member at the start time of the dry burn detection may be considered. If the temperature of the heating element at the start of the dry burning test is too high, dry burning detection may cause smoke.
  • the temperature/resistance of the heating member can be detected before the dry burning test, and if it exceeds a certain threshold (e.g., 150 ° C, the present invention is not limited thereto), dry burning detection is not performed. Dry burn detection is not performed until the temperature/resistance of the heating element is below a certain threshold (eg 150 °C).
  • a preferred range of the temperature threshold is from 200 ° C to ambient temperature.
  • an optimized fixed time such as 2 seconds after the end of pumping
  • set it as the start time of the dry burn test, which can reduce the complexity of the control process, and also consider the heating of the parts after 2 seconds under normal conditions.
  • the temperature has dropped from approximately 300 ° C to 150 ° C.
  • a step can be added after a fixed time (eg, after 2 seconds) to detect the temperature/resistance of the heating element. If it exceeds a certain threshold (such as 150 ° C), dry burning detection is not performed.
  • the maximum power output power is heated for 80 ms to detect the heating rate of the heating component within 80 ms, wherein the 80 ms time setting is based on the reliability of the temperature/resistance change rate detection and Discrimination.
  • the longer the time the more accurate the temperature/resistance rate of detection, and the more accurate the result of dry-burning judgment, but the longer the time, the more electricity it consumes.
  • the length of each dry burn test cannot exceed the length of the heating element at the same power (same as the dry burn test power) from the start of the dry burn test to the main operating temperature, but greater than the temperature/resistance of the heating component.
  • the minimum duration of change In this embodiment, the dry burning detection time of 80 ms is only an example, and the present invention is not limited thereto.
  • the preferred range of dry burning detection duration may be 40 ms - 100 ms.
  • the setting of the dry burning detection time and the setting of the dry burning detection starting time point are related. At the suction interval, the earlier the dry burning detection start time point is set, the shorter the upper limit of the dry burning detection time is; the later the dry burning detection start time point is set, although the upper limit of the dry burning detection time length can be increased, The greater the likelihood of the user making the next puff, the conflict with the dry burn test.
  • the dry burning detection time and the dry burning detection start time point it is necessary to comprehensively consider the suction interval time, the actual temperature/resistance of the heating member at the time, and the like.
  • step S140 a period of time after the dry burn detection, if the control unit 400 receives the next start signal, it returns to step S110 to repeat the entire process. If the next start signal is not received, then go to step S150.
  • dry burn detection can be set every 3 seconds, where 3 seconds is only a time example, and the invention is not limited thereto. In one embodiment, it is also possible to start setting a dry burn test every 3 seconds, adding the interval to 5 seconds after 5 consecutive times, adding the interval to 8 seconds after 5 consecutive times, and so on.
  • N is the cumulative count of the number of dry burns.
  • step S160 it is determined whether the number N of dry burning detections exceeds a threshold. If the threshold is exceeded, the system is turned off and the aerosol generating device stops working. If the threshold is not exceeded, then return to step S140. Alternatively, it is also possible to shut down if the non-pumping time exceeds a certain threshold. If the threshold is not exceeded, return to step S140.
  • the threshold for the number of dry burns is set to 10, if 10 consecutive dry burn tests are performed (meaning that no suction occurs between each dry burn test.
  • 10 times is just an example, the invention is not Limited to this, it means that the user does not want to smoke any more, and the control unit 400 performs a shutdown operation.
  • the time at which the user does not smoke is counted, and if the non-pumping time exceeds a certain threshold, such as 2 minutes, a shutdown operation is performed.
  • Fig. 5 is a graph showing changes in temperature of the heating member 300 in the aerosol generating device 10 and/or the aerosol-generating article 20 as a function of time when the aerosol generating heating method of the embodiment of the present invention shown in Fig. 4 is employed.
  • the value of T1 can be adjusted to suit the particular substrate and materials, materials and geometries of the particular component.
  • the values of t1, t2, t3, t4, and t5 will be different for different environments, different users, and different scenarios.
  • T1 is the main operating temperature of the heating member 300, and is also the aerosol generating temperature.
  • the control component 400 of the aerosol generating device 10 after receiving the starting operation of the switching component 100 (the user starts the first pumping), raises the heating component 300 from the ambient temperature to the main operating temperature T1 with maximum power and It takes about 1 to 2 seconds, and sometimes it can take about 4 seconds, depending on the user's suction time. Thereafter, the control unit 400 receives the stop signal of the switch unit 100 at time t1, stops supplying power to the heating unit 300, and the temperature of the heating unit 300 naturally decreases.
  • the rate at which the temperature is lowered depends on the ambient temperature, and if the ambient temperature is low, the temperature of the heating member 300 drops rapidly.
  • the dry burn detection is performed at time t2: the control unit 400 controls to supply a certain power (for example, maximum power) to the heating unit 300, heats for a certain time (for example, 80 ms), detects the temperature of the resistance wire, and calculates the temperature increase rate (corresponding to the detection temperature). The slope of the rising curve), if the heating rate exceeds a threshold, it is judged to dry, otherwise it is judged that dry burning does not occur.
  • a certain power for example, maximum power
  • the temperature change curve is as shown in FIG. .
  • the control unit 400 receives the start signal of the switch unit 100 at the time t3 (if the dry burn detection is performed every 3 seconds, then t3 ⁇ t2 + 3 seconds) (representing the user's second pumping) Suction), the temperature of the heating member 300 is again raised to the main operating temperature at the maximum power and maintained until the stop signal of the switch member 100 is received at t4 to stop the output power to the heating member 300, and the heating member 300 naturally cools down.
  • the aerosol generating device 10 repeats the above heating process according to the user's operation until the dry burning detection result is that dry burning occurs.
  • the control unit 400 stops operating, and informs the user to replace the aerosol generating product by the indicator light display or vibration. , or add an aerosol generating matrix.
  • the final judgment of the dry burning may be based on a detection result that the temperature increase rate exceeds the threshold value, or may be multiple times (for example, five times), and the temperature rise rate exceeds the threshold value.
  • the invention is not limited thereto.
  • the embodiment shown in Figures 5 and 6 has no preheating temperature and no standby temperature.
  • the dry burn detection is also performed after receiving the suction stop signal and before receiving the suction activation signal.
  • Figures 5 and 6 are only schematic representations, and are not drawn to scale, in which certain details are exaggerated for clarity and some details may be omitted.
  • the aerosol generating heating method, apparatus and system provided by the present invention can perform dry burning detection during the gap of the user's suction, so that the user does not feel the delay caused by the dry burning detection. .
  • the dry burn test is performed before the user draws the next time, and the power is supplied to the heating member.
  • the heating member does not cool down to the ambient temperature, but approximately maintains a standby temperature, which is equivalent to the next One suction has the effect of preheating, and for the next suction, the evaporate can be rapidly heated to form an aerosol, reducing the waiting time for reheating.

Abstract

L'invention concerne un procédé de commande d'un dispositif de génération d'aérosol (10). Après l'exécution d'une aspiration et avant le démarrage de l'aspiration suivante, une détection de combustion à sec est effectuée. Avant la détection de combustion à sec, la valeur de température/résistance d'un composant de chauffe (300) est détectée, et une détection de combustion à sec n'est effectuée que lorsque la valeur de température/résistance du composant de chauffe (300) est inférieure à une valeur de température/résistance définie. En organisant la détection de combustion à sec pendant un intervalle d'aspiration d'un utilisateur, une détection de combustion à sec n'est pas effectuée pendant l'aspiration de l'utilisateur, ce qui permet de résoudre l'effet de retard. De plus, une détection de combustion à sec est effectuée avant l'aspiration suivante de l'utilisateur, ce qui a pour effet de préchauffer l'aspiration suivante. L'expérience de l'utilisateur est bonne.
PCT/CN2018/125665 2018-04-04 2018-12-29 Dispositif de génération d'aérosol et son procédé de commande WO2019192226A1 (fr)

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WO2022153023A1 (fr) * 2021-01-14 2022-07-21 Nicoventures Trading Limited Système de fourniture d'aérosol
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JP6667709B1 (ja) * 2019-10-24 2020-03-18 日本たばこ産業株式会社 エアロゾル吸引器の電源ユニット
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