WO2019196514A1 - Dispositif de génération d'aérosol et procédé de commande de chauffage associé - Google Patents

Dispositif de génération d'aérosol et procédé de commande de chauffage associé Download PDF

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Publication number
WO2019196514A1
WO2019196514A1 PCT/CN2018/125687 CN2018125687W WO2019196514A1 WO 2019196514 A1 WO2019196514 A1 WO 2019196514A1 CN 2018125687 W CN2018125687 W CN 2018125687W WO 2019196514 A1 WO2019196514 A1 WO 2019196514A1
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WIPO (PCT)
Prior art keywords
temperature
generating component
heat generating
aerosol
heating
Prior art date
Application number
PCT/CN2018/125687
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English (en)
Chinese (zh)
Inventor
罗建鹏
Original Assignee
赫斯提亚深圳生物科技有限公司
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Publication of WO2019196514A1 publication Critical patent/WO2019196514A1/fr

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
    • G05D23/1904—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value variable in time
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • 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
    • A24F40/60—Devices with integrated user interfaces

Definitions

  • the present invention relates to an aerosol generating device, and more particularly to a heating control method and an aerosol generating device for generating an aerosol.
  • 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 aerosol generating temperature is generally as high as 350 ° C.
  • the safe temperature range of the heat generating component ranges from 280 ° C to 400 ° C in the case of generating an aerosol.
  • the existing electronic cigarettes detect the temperature of the heating component in real time to achieve the purpose of temperature control, so that the temperature of the heating component is maintained within a safe temperature range, avoiding Burning and frying oil due to high temperature of the heating wire, the temperature is too low, the aerosol is not enough, and the taste is not good.
  • the present invention provides a heating control method for an aerosol generating apparatus, comprising the steps of: S100, detecting an existing temperature of a heat generating component after receiving an activation signal, according to an existing temperature and a target temperature of the heat generating component Estimating the heating temperature rise time; S110, driving the heat generating component at a maximum power, heating, and not performing temperature detection on the heat generating component during the heating temperature rising time; S120, after the heating and heating time of the budget, high The temperature of the heat generating component is frequently detected to control the temperature within a safe temperature range required to generate an aerosol; S130, after receiving the stop signal, stop driving the heat generating component at maximum power.
  • detecting the temperature of the heat generating component comprises: performing temperature detection on the heat generating component, and when the detected temperature is less than a main operating temperature of the heat generating component, continuing to drive the heat generating component with heating power required by the current step, When the detected temperature is greater than the main operating temperature of the heat generating component, the output power is stopped, that is, the heat generating component is driven at zero power.
  • the target temperature is a main operating temperature of the heat generating component, or a temperature value that increases a safety factor based on a main operating temperature of the heat generating component, the temperature value being lower than the main operating temperature.
  • the step S120 includes: driving the heat generating component at a first power lower than the maximum power.
  • the frequency of the high frequency in the step S120 is determined according to a temperature range required to generate an aerosol.
  • the frequency interval of the high frequency in the step S120 ranges from 1 ms to 30 ms.
  • the step S130 further includes: starting timing, and if the timing exceeds a threshold, shutting down
  • 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 start signal and/or a stop signal, and the switch component is any one or a combination of a pneumatic switch, a push button switch, and a touch switch; and the control component is configured to: during the temperature rise phase, no temperature detection is performed; At the top of the temperature, high frequency temperature detection is performed.
  • the present invention provides an aerosol generating system comprising: an aerosol-generating article comprising an aerosol generating matrix; an aerosol generating device for cooperating with the aerosol-generating article; a component for heating the aerosol generating matrix; wherein the heat generating 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; and a control component included in the aerosol generating device for controlling: during a temperature rise phase, No temperature detection is performed; at the top of the temperature, high frequency temperature detection is performed.
  • 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 perform: no temperature detection is performed during a temperature rise phase; At the top of the temperature, high frequency temperature detection is performed.
  • the present invention also provides a non-transitory computer readable storage medium comprising instructions that, when executed by a processor, enable the processor to perform: no temperature detection is performed during a temperature rise phase; At the top of the temperature, high frequency temperature detection is performed.
  • the invention not achieves the temperature detection of the heat-generating component during the temperature rising phase, so that the heat-generating component reaches the main working temperature in the shortest time, and the user can almost immediately take the aerosol, and the experience is good.
  • 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 control method according to an embodiment of the present invention.
  • Fig. 5 is a temperature timing chart during operation of a heat generating component according to an embodiment of the present invention.
  • Fig. 6 is a timing chart showing the temperature of a heat generating component in another embodiment of the present invention.
  • Fig. 7 is a timing chart showing the temperature of a heat generating component in accordance with still another embodiment of the present invention.
  • the present invention provides a heating control method for an aerosol generating device, which can realize the heating component in the shortest time.
  • the aerosol generation temperature is reached, and the temperature of the heating element is controlled to be within the safe temperature range required to generate the aerosol.
  • the general idea of the invention is that no temperature detection is performed on the heat generating component during the temperature rise phase; in the top temperature phase, intensive temperature detection is performed to control the temperature within the safe temperature range required to generate the aerosol.
  • 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 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 heat generating component 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 "heating parts”. Unless otherwise defined in the context.
  • detecting temperature includes, but is not limited to, literal meaning, including the meaning of detecting temperature and/or detecting resistance, because between a temperature and a resistance value for a heat-generating component made of a temperature-temperature coefficient characteristic material. There is a one-to-one correspondence.
  • the temperature rise phase in "the temperature detection is not performed on the heat generating component during the temperature rising phase” does not include the head end time point and the tail end time point of the phase, because at the head end time point and the tail end time point It is possible to perform temperature detection.
  • 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 heat generating component 300, and a control component 400.
  • the control component 400 is electrically connected to the switch component 100, the power supply component 200, and the heat generating component 300, respectively. 200 is used to provide electrical energy.
  • the power supply part 200 is for supplying electric power to the heat generating part 300 according to the control of the control part 400. Specifically, the power supply unit 200 adjusts the power output power and the output time to the heat generating 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 heat generating component 300 is for heating the aerosol generating substrate 21 contained in the aerosol generating article 20 to form an evaporant.
  • the heat generating component 300 heats up the aerosol generating substrate 21 in accordance with the power supplied from the power supplying member 200 (controlled by the control member 400).
  • the main operating temperature of the heat generating component 300 means that the heat generating component 300 heats the aerosol generating matrix 21 contained in the corresponding aerosol generating article 20 to form an evaporating material, 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.
  • control unit 400 adaptively monitors the temperature of the heat generating component 300 and controls the temperature of the heat generating component 300 as far as possible and/or below the main operating temperature, or as much as possible Within the safe temperature range.
  • the heat generating component 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 component 400 may be obtained according to the measured resistance value of the heat generating component 300.
  • the temperature of the heat generating component 300 corresponding to the resistance value is used to control the temperature of the heat generating component 300 or to control the power supplied to the heat generating component 300.
  • the material of the heat generating component 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 heat generating component 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 heat generating component 300 can be measured by monitoring the resistance change of the heat generating component 300.
  • the heat generating component 300 may also employ a conventional heat generating material that does not have a temperature coefficient of resistance characteristic, in which case an additional temperature sensor needs to be added beside the heat generating component to obtain the temperature of the heat generating component.
  • the heat generating 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 heat generating component 300 is electrically connected to the power feeding component 200 and the control component 400.
  • the aerosol generating device 10 and the aerosol-generating product 20 may be provided with the heat generating component 300.
  • the present invention does not limit the specific arrangement of the heat generating component 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 heat generating unit to start heating.
  • the pneumatic switch continuously monitors whether the gas flows into the device.
  • the stop signal is output, and the control unit 400 receives the stop signal and controls the signal.
  • the power supply unit 200 stops/drives the heat generating component at a lower power.
  • the start signal refers to a signal that the control unit 400 controls the temperature rise of the heat generating unit 300.
  • the control unit 400 controls the power supply unit 200 to output at maximum power, so that the temperature of the heat generating unit 300 rises, so that the shortest time can be obtained.
  • the temperature of the heat generating component 300 is raised to the target temperature;
  • the stop signal refers to a signal that the control component 400 controls the temperature drop of the heat generating component 300, and after receiving the stop signal, the control component 400 controls the power supply component 200 to stop outputting power (ie, output).
  • Zero power) or outputting another power causes the temperature of the heat generating component 300 to drop, preferably at zero power, which reduces the complexity of the circuit and control process.
  • the start signal is a temperature rise control signal and the stop signal is a temperature drop control signal.
  • the switch component 100 is a pneumatic switch.
  • the pneumatic switch When the user starts pumping, the pneumatic switch outputs a start signal due to the air pressure difference.
  • the control component 400 controls the power supply component 200 to drive the heat generating component 300 at maximum power.
  • Component 300 quickly rises from ambient temperature to the main operating temperature.
  • the heat-generating component 300 is then controlled to maintain a safe temperature range to continue to generate aerosols, which may still be the maximum power drive or the first power (below the maximum power but greater than zero) drive, which may The details are as follows.
  • the pneumatic switch When the user suctions, the pneumatic switch outputs the first stop signal because there is no air pressure difference, and after receiving the stop signal, the control unit 400 stops the output power, that is, drives the heat generating component 300 with zero power, and the heat generating component 300 starts to rapidly cool down. Alternatively, after receiving the stop signal, the control unit 400 drives the heat generating component 300 at a lower power, such as the second power. The heat generating component 300 does not directly cool down to the ambient temperature, but is maintained at a standby temperature lower than the main operating 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 other control processes are the same as in the previous embodiment except that the switch components are different. For example, when the user presses or touches the switch member 100, the start signal is output, and the power supply unit 200 is controlled to drive the heat generating unit 300 at the maximum power, and the heat generating unit 300 rapidly rises from the ambient temperature to the main operating temperature.
  • the power supply component 200 is then controlled to control the heat generating component 300 to remain within a safe temperature range to continuously generate aerosols, in which case it may still be the maximum power drive or may be changed to the first power (below the maximum power but greater than zero). ) Drive, which will be detailed below.
  • a stop signal is output. It is also possible that the user outputs an activation signal when the user presses or touches the switch member 100 and maintains a pressed or touched state, and outputs a 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 heat generating 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 is driven to the heat generating component 300 at the maximum power, and after a predetermined time elapses, the user can be notified by the indicator light or by vibration. Then, the user starts pumping, triggers the pneumatic switch, and outputs a second start signal.
  • the control component 400 controls the power supply component 200 to continue to drive the heat generating component 300 at maximum power or by the first power, and the heat generating component 300 Fast reach the main operating temperature. It is then maintained/controlled within a safe temperature range, during which it can still be either the maximum power drive or the first power (below the maximum power but greater than zero) drive, as detailed below.
  • the pneumatic switch outputs a stop signal, and the control component 400 stops outputting power to the heat generating component (ie, zero power) after receiving the stop signal, or drives the heat with the second power (less than the maximum power but greater than zero).
  • the parts are kept at a standby temperature.
  • control unit 400 adaptively monitors the temperature/resistance of the heat generating component 300 and controls the temperature of the heat generating component 300 not to exceed and/or be lower than the main operating temperature, remaining in one Within the safe temperature range.
  • 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 value of the heat generating component 300.
  • a separate temperature detecting unit such as a temperature sensor may be installed in the vicinity of the heat generating component 300.
  • a temperature sensor is used to sense the temperature of the heat generating component 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 heat generating 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 heat generating unit 300 or stop the output power based on the detected resistance value of the heat generating component 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 heat generating 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.
  • FIG. 4 is a flow chart showing an aerosol generating heating control 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 control method is used to heat the aerosol-generating substrate 21 in the aerosol-generating article 20.
  • the heating control method includes the following steps:
  • step S100 after receiving the start signal, the existing temperature of the heat generating component 300 is detected, and the heating warming time is estimated based on the current temperature of the heat generating component and its target temperature based on the maximum power; to step S110.
  • the activation signal may be from the switching component or may be derived from other triggers, such as triggering an activation signal when the aerosol-generating article is inserted into the aerosol generating device, which is not limited in the present invention.
  • the existing temperature of the heat generating component there are two cases: (1) When the user does not smoke for a long time, the current temperature of the heat generating component is the ambient temperature, and is usually 40 ° C or less. (2) When the user is smoking, if the suction interval is short (such as 4s), or if the aerosol generating device has a set standby temperature, or other conditions, the existing temperature of the heat-generating component at the beginning of each suction is high. At ambient temperature, such as 100 ° C or above, but below the main operating temperature.
  • the main operating temperature of the heat generating component may be set as the target temperature, or the main operating temperature may be subtracted from the safe operating range value as the target temperature.
  • the main operating temperature of the heat generating component is 350 ° C
  • the target temperature can be set to 350 ° C
  • the target temperature can be set to 300 ° C, leaving 50 ° C of safety redundancy; or the target The temperature is set to 250 ° C, leaving 100 ° C of safety redundancy.
  • step S110 the heat generating component 300 is driven at the maximum power and heated, and the temperature/resistance detection is not performed on the heat generating component 300 in the above-described estimated heating temperature rising time; to step S120.
  • the parameters of the entire aerosol generating device such as the amount of electricity of the battery, the temperature of the battery, the temperature of the environment, and the like, are usually detected before heating, and heating is started when all the parameters are normal.
  • the invention is not limited.
  • the control unit 400 controls the driving of the heat generating component 300 at the maximum power, and starts to generate an aerosol from the ambient temperature to the main operating temperature (e.g., 350 ° C) in the shortest time. During the entire heating and heating process, the control unit 400 does not detect the temperature of the heat generating component 300, and the user can suck the aerosol with almost no waiting, and the experience is better.
  • the main operating temperature e.g. 350 ° C
  • the delay is increased, and the time from the ambient temperature to the main operating temperature is too long, and the user is very May draw oil, the experience is poor.
  • step S120 after the heating and heating time period, the heating element is continuously driven at the maximum power or the first power, and the temperature/resistance intensive detection phase of the heat generating component 300 is entered to control the temperature to the safety required to generate the aerosol. Within the temperature range; to step S130.
  • the temperature of the heat generating component 300 has reached the target temperature (for example, 350 ° C).
  • the target temperature for example, 350 ° C.
  • it is necessary to intensively detect the temperature of the heat generating component 300. / resistance value for example, every 10 ms (10 ms is only an example, the invention is not limited thereto).
  • the heating component 300 In the intensive detection phase, if the detection result is not higher than the main operating temperature, the heating component 300 is further driven to be heated by the maximum power or the first power; after 10 ms, the temperature/resistance detection is performed again, and if the detection result is higher than the operating temperature, Then, the supply of power to the heat generating component 300 is stopped, which is equivalent to driving the heat generating component 300 with zero power; then, after 10 ms, temperature/resistance detection is performed, and if the detection result is lower than the main operating temperature, then the maximum power or the first power is used. The heating element 300 is driven to heat; then, after 10 ms, the temperature/resistance detection is performed; the cycle is continued; until the stop signal is received.
  • the temperature/resistance detection interval of 10 ms is only an example, and the present invention is not limited thereto.
  • the preferred range of the detection interval may be 1 ms to 30 ms.
  • the setting of the detection interval is related to the safe temperature range.
  • the main operating temperature is 350 ° C
  • the safe temperature range is about 350 ° C ⁇ 50 ° C
  • the maximum acceptable detection interval can be estimated is 30 ms.
  • the smaller the detection interval the smaller the fluctuation range of the main operating temperature, and the larger the detection interval, the larger the fluctuation range of the main operating temperature.
  • the setting of the detection interval is also related to the driving power. If driven at the first power (less than the maximum power), to be controlled within the same safe temperature range, the maximum acceptable detection interval can be greater than the maximum power drive. For example, to control within the same safe temperature range of 350 ° C ⁇ 50 ° C, if driven at maximum power, the maximum acceptable detection interval is estimated to be 30 ms; if driven at 2 / 3 maximum power (first power), Then the maximum acceptable detection interval is estimated to be 40 ms; this is only an exemplary description.
  • step S130 after receiving the stop signal, stop supplying power to the heat generating component 300; or drive the heat generating component 300 with the second power; and start timing, waiting for the next start signal (ie, waiting for the next pumping), to step S140 .
  • the receipt of the stop signal means that the user has finished pumping, (1) the supply of power to the heat generating component 300 is stopped, and the heat generating component 300 naturally cools down. Or (2) the heat generating component 300 is driven at a second power (less than the maximum power) so that the heat generating component 300 is maintained at a standby temperature at which no aerosol is generated when not sucked.
  • the temperature of the heat generating component may or may not be detected.
  • the frequency can be determined based on the time interval of the pumping. Normally, the average time per two pumping intervals is about 6 seconds, so it can be set to be detected every 1 second, where 1 second is only an example, and the present invention is not limited thereto.
  • the temperature of the heat generating component is usually not detected during the process from the main operating temperature to the standby temperature, and a cooling time can be estimated based on the standby temperature and the main operating temperature, and the cooling time is not exceeded during the cooling time.
  • the high frequency detection temperature is required to maintain the standby temperature, which is the same as the above principle of maintaining the main operating temperature.
  • Temperature detection can be performed during the temperature drop because the temperature drop process is not pumping time. At this time, temperature detection does not give the customer a so-called delay and does not affect the user experience. Temperature detection is performed to improve safety and prevent abnormal temperature rise due to malfunction. The frequency of temperature detection during temperature drop can be set as needed.
  • step S140 if the control section 400 receives the next start signal, it returns to step S100 to repeat the entire process. If the timing duration (ie, no pumping time) exceeds a certain threshold, shut down.
  • the threshold is typically not less than the pumping interval, but rather much greater than the pumping interval.
  • the aspiration interval is on average 5 s. For example, you can choose a threshold of 2 minutes, and more than 2 minutes means that the customer does not want to smoke again, then shut down.
  • the present invention does not detect the temperature at all times during the user's pumping process, but instead places the temperature detection at the top stage of the temperature and does not perform the temperature detection during the temperature rise phase. In this way, the user does not feel the delay and thus does not affect the user experience.
  • the present invention treats each user's cigarette as a single puff.
  • the above steps S100 to S140 are applied to each suction process.
  • Fig. 5 is a graph showing changes in temperature of the heat generating component 300 in the aerosol generating device 10 and/or the aerosol-generating article 20 as a function of time when the aerosol generating heating control method of the embodiment of the present invention shown in Fig. 4 is employed.
  • T is the main operating temperature of the heat generating component 300, and is also the aerosol generating temperature.
  • the heating temperature rise time is estimated to be t1 (for example, 250 ms) according to the existing temperature (ambient temperature) of the heat generating component 300 and the target temperature (T), and then the heat generating component 300 is driven at the maximum power, and the driving time is long.
  • t1 for example, 250 ms
  • the temperature/resistance detection of the heat-generating component is not performed.
  • the detection interval is ⁇ t (for example, 10 ms).
  • T1 may be exactly the same as T, or it may be different from T, because the estimation of time t1 may have errors.
  • T1 ⁇ T the heating element heating is continued to be driven at the maximum power; after ⁇ t, the temperature/resistance detection is performed again, and the detection result is T2, T2>T, then the supply of power to the heat generating component is stopped; then ⁇ t and then again Perform temperature/resistance detection, and the detection result is lower than T, then drive the heating element to heat at the maximum power; then, after ⁇ t, perform temperature/resistance detection; continue to cycle; until time point t2 receives stop signal (suction End), the power supply to the heat generating component is stopped, and the temperature of the heat generating component is naturally lowered.
  • the process in which the heat generating component rises from the existing temperature to the target temperature is called a temperature rising phase; after that, it enters the aerosol generating phase, and the temperature is maintained/controlled within a safe temperature range of the main operating temperature, which is called the temperature top phase; After the end of the suction, enter the temperature drop phase.
  • the temperature/resistance detection of the heat-generating component is not performed; in the top stage of the temperature, the temperature/resistance value of the heat-generating component is intensively detected; in the temperature drop phase, the temperature/resistance detection of the heat-generating component may not be performed. Temperature detection can be performed, and the invention is not limited.
  • the temperature is driven at maximum power during the main temperature rise phase, the top temperature phase is also driven at maximum power, and the temperature drop phase is driven at zero power.
  • the design of the circuit and the control method are relatively simple.
  • the temperature is driven at a maximum power during a main temperature rise phase, the first temperature is driven at a lower power than the maximum power, and the temperature drop phase is driven at a second power of zero power or less.
  • the setting of the first power below the maximum power is such that the fluctuation range of the top stage of the temperature is not so large (in the case of the same detection interval); the setting of the second power below the maximum power is to maintain a standby temperature when not pumping .
  • the aerosol generation temperature fluctuation range at the top stage of the temperature is controlled within the range of (T1 to T2), which is related to the detection interval ⁇ t, and the driving power.
  • the temperature of the heat generating component 300 does not drop so fast, or the suction interval between the two suctions is relatively short, and it is likely that the next start signal is received at the time t3 (second port suction). At the time, the temperature of the heat-generating component has not been lowered to the ambient temperature, and the temperature change curve is as shown in FIG. 6.
  • the heating control process of the first port suction is the same as the first port suction of Fig. 5, but the second port suction start time t3 of Fig. 6 detects that the temperature value is T3;
  • the existing temperature T3 and the target temperature T are estimated to be one heating time t4-t3; then the heating element is driven at the maximum power, and the temperature/resistance detection is not performed during the heating period of t4-t3; after the time point t4, the start The temperature/resistance of the heat-generating component is intensively detected, and the detection interval is ⁇ t (for example, 10 ms).
  • the subsequent steps are the same as in FIG. 5.
  • Figure 6 also shows the process of three suctions. 6 differs from FIG. 5 only in that the existing temperature of the heat-generating component at the time of the second and third port suctions is greater than the ambient temperature due to the short suction interval. But the entire heating control process is the same.
  • Fig. 7 is another graph showing changes in temperature of the heat generating component 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.
  • Fig. 7 and Fig. 5 The difference between Fig. 7 and Fig. 5 is only that the estimated heating time t1' is shorter than t1 in Fig. 5 according to the existing temperature (ambient temperature) and the target temperature (T), because safety is considered in the estimation process. coefficient.
  • the temperature detected at t1' is T3, and since T3 ⁇ T, heating is continued at the maximum power.
  • the temperature is again detected after ⁇ t as T1, since T1 is still less than T and continues to be heated at maximum power.
  • the detected temperature is T2, because T2>T, the output power is stopped. Repeat this way until the end of the pumping.
  • the heating control method is the same as that of Fig. 5 except that the estimated heating time is shorter and the intensive detection period t2-t1' is longer.
  • Figure 7 also shows the process of three suctions.
  • the aerosol generation heating control method, apparatus and system provided by the present invention do not perform temperature/resistance detection during a temperature rise phase, so that the user does not feel the delay due to temperature/resistance detection. .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

L'invention concerne un procédé de commande de chauffage pour un dispositif de génération d'aérosol (10), le procédé comprenant les étapes consistant à : détecter la température actuelle d'un composant de génération de chaleur (300) après réception d'un signal d'activation et estimer la durée de chauffage en fonction de la température actuelle et d'une température cible pour le composant de génération de chaleur (300) (S100) ; puis amener le composant de génération de chaleur (300) à chauffer à la puissance maximale, sans détection de la température/résistance du composant de génération de chaleur (300) pendant la durée de chauffage estimée (S110) ; et à l'issue de la durée de chauffage, détecter en continu le niveau de température/résistance du composant de génération de chaleur (300) pour amener la température à rester dans les limites d'une plage de température nécessaire pour générer l'aérosol, mais ne présentant aucun risque (S120). Pendant la période de montée en température, aucune détection de température n'a lieu, ce qui permet de résoudre le problème de l'effet retard. Un utilisateur peut inhaler l'aérosol au bout d'un temps très bref, ce qui lui permet de vivre une bonne expérience utilisateur.
PCT/CN2018/125687 2018-04-13 2018-12-29 Dispositif de génération d'aérosol et procédé de commande de chauffage associé WO2019196514A1 (fr)

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