WO2023236934A1 - 电源组件、电子雾化装置及其控制方法 - Google Patents

电源组件、电子雾化装置及其控制方法 Download PDF

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Publication number
WO2023236934A1
WO2023236934A1 PCT/CN2023/098511 CN2023098511W WO2023236934A1 WO 2023236934 A1 WO2023236934 A1 WO 2023236934A1 CN 2023098511 W CN2023098511 W CN 2023098511W WO 2023236934 A1 WO2023236934 A1 WO 2023236934A1
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WO
WIPO (PCT)
Prior art keywords
magnetic field
generating circuit
power supply
field generating
atomization device
Prior art date
Application number
PCT/CN2023/098511
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English (en)
French (fr)
Inventor
李新军
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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Application filed by 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Publication of WO2023236934A1 publication Critical patent/WO2023236934A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42—Cartridges or containers for inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications

Definitions

  • the present application relates to the field of electronic atomization technology, and in particular, to a power supply assembly, an electronic atomization device and a control method thereof.
  • an electronic atomization device usually contains a liquid that is heated by a heating element to vaporize, thereby producing an inhalable aerosol; the liquid may contain nicotine and/or aromatics and/or aerosol-generating substances. (e.g., glycerol).
  • the above heating devices usually monitor the resistance change of the heating element itself to obtain the operating temperature of the heating element, and then determine whether the operating temperature of the heating element exceeds the preset range, and based on this, determine whether there are adverse conditions such as insufficient liquid supply.
  • this application provides an electronic atomization device, including:
  • Liquid storage chamber for storing liquid matrix
  • Power supply used to provide electricity
  • a magnetic field generating circuit electrically connected to the power supply; the magnetic field generating circuit is configured to generate a changing magnetic field;
  • a sensor configured to be penetrated by a changing magnetic field and generate heat to heat the liquid matrix to generate an aerosol
  • a power supply assembly for powering an atomizer of an electronic atomization device;
  • the atomizer includes a liquid storage chamber for storing a liquid substrate, and a liquid substrate for heating the liquid substrate to generate Aerosol sensor;
  • the power component includes:
  • Power supply used to provide electricity
  • a magnetic field generating circuit electrically connected to the power supply; the magnetic field generating circuit is configured to generate a changing magnetic field;
  • the present application also provides a control method for an electronic atomization device.
  • the electronic atomization device includes:
  • Liquid storage chamber for storing liquid matrix
  • Power supply used to provide electricity
  • a magnetic field generating circuit electrically connected to the power supply; the magnetic field generating circuit is configured to generate a changing magnetic field;
  • a sensor configured to be penetrated by a changing magnetic field and generate heat to heat the liquid matrix to generate an aerosol
  • the methods include:
  • An electrical characteristic parameter of the magnetic field generating circuit is monitored, and whether an adverse condition exists in the sensor is determined based on the electrical characteristic parameter of the magnetic field generating circuit.
  • the above electronic atomization device improves the user experience by monitoring the electrical characteristic parameters of the magnetic field generating circuit and then determining whether there are adverse conditions in the sensor based on the electrical characteristic parameters.
  • Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment of the present application.
  • Figure 2 is a wireframe diagram of the electronic atomization device provided by the embodiment of the present application.
  • Figure 3 is a schematic diagram of the switching circuit and the resonant circuit provided by the embodiment of the present application.
  • Figure 4 is a schematic diagram of the detection circuit provided by the embodiment of the present application.
  • Figure 5 is a schematic diagram of a detection circuit provided by another embodiment of the present application.
  • FIG. 6 is a schematic diagram of the relationship between the temperature of the sensor and the resonance voltage peak of the magnetic field generating circuit provided by the embodiment of the present application.
  • Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment of the present application.
  • the electronic atomization device 100 includes an atomizer 10 and a power supply assembly 20 .
  • the atomizer 10 and the power supply assembly 20 are integrally formed.
  • the atomizer 10 includes a sensor 11 and a liquid storage chamber (not shown).
  • the liquid storage chamber is used to store an atomizable liquid matrix; the sensor 11 is configured to be inductively coupled with the inductor 21 and generate heat when penetrated by a changing magnetic field, thereby heating the liquid matrix to generate an aerosol for smoking.
  • the liquid matrix preferably contains a tobacco-containing material containing volatile tobacco flavor compounds that are released from the liquid matrix upon heating.
  • the liquid matrix may contain non-tobacco materials.
  • Liquid bases may include water, ethanol or other solvents, plant extracts, nicotine solutions, and natural or artificial flavors.
  • the liquid matrix further contains an aerosol-forming agent. Examples of suitable aerosol formers are glycerol and propylene glycol.
  • the senor 11 can be made of at least one of the following materials: aluminum, iron, nickel, copper, bronze, cobalt, ordinary carbon steel, stainless steel, ferritic stainless steel, martensitic stainless steel or austenitic stainless steel. In this example, by selecting a suitable material, the sensor 11 It has a preset Curie temperature which is greater than the atomization or evaporation temperature of the liquid substrate.
  • the preset Curie temperature can be 280°C, 290°C, 300°C, 310°C or 320°C, etc., that is, the preset Curie temperature and the liquid matrix
  • the difference in atomization temperature is between 30°C and 70°C, preferably between 30°C and 60°C, and further preferably between 40°C and 60°C; in a specific example, the preset Curie temperature is The difference in atomization temperature of the substrate is 50°C.
  • the preset Curie temperature is between 250°C and 450°C, preferably between 250°C and 400°C, and more preferably between 200°C and 350°C.
  • the power component 20 includes an inductor 21 , a circuit 22 and a power supply 23 .
  • the inductor 21 generates a changing magnetic field under alternating current, and the inductor 21 includes but is not limited to an induction coil.
  • the power supply 23 provides power for operating the electronic atomization device 100 .
  • the power source 23 may be a rechargeable battery cell or a disposable battery cell.
  • Circuitry 22 may control the overall operation of the electronic atomization device 100 . Circuit 22 not only controls the operation of power supply 23 and inductor 21 , but also controls the operation of other components in electronic atomization device 100 .
  • the electronic atomization device 100 may also include other components, such as liquid transfer elements, etc.
  • the liquid transfer unit may be cotton fiber, metal fiber, ceramic fiber, glass, etc. Fibers, porous ceramics, etc.
  • the liquid transfer unit can be rod-shaped, tube-shaped, rod-shaped, etc., or it can be plate-shaped, sheet-shaped, or a concave block with a cavity on the surface, or an arched shape with an arched structure, etc. .
  • the atomizer 10 and the power supply assembly 20 can be formed separately.
  • the atomizer 10 and the power supply assembly 20 can be detachable through snap connection, magnetic connection, etc. ground connection.
  • Figures 2 and 3 show a schematic diagram of the basic components of an embodiment of the circuit 22; the circuit 22 includes:
  • the magnetic field generating circuit includes a switching circuit 221 and a resonant circuit 222.
  • the switch circuit 221 is a half-bridge circuit composed of transistor switches; it includes a switch tube Q1 and a switch tube Q2, and is used to cause the resonant circuit 222 to resonate through alternate on-off switching.
  • the resonant circuit 222 consists of the inductor 21 (shown as L in the figure) and the first capacitor C1 and The resonant circuit 222 composed of the second capacitor C2 is used to form an alternating current flowing through the inductor L during the resonance process, so that the inductor L generates an alternating magnetic field to induce the sensor 11 to generate heat.
  • the driver 223 is used to control the switching tube Q1 and the switching tube Q2 of the switching circuit 221 to alternately turn on and off according to the control signal of the controller (not shown in the drawing).
  • Driver 223 uses the commonly used FD2204 model switching tube driver, which is controlled by the controller in PWM mode. According to the pulse width of PWM, the 3rd and 10th I/O ports alternately send out high level/low level and then The conduction time of the switching tubes Q1 and Q2 is driven to control the resonant circuit 222 to generate resonance. In other examples, it is possible that the driver 223 is integrated in the controller or implemented by the controller.
  • the first end of the first capacitor C1 is connected to Vbat (Vbat can be the power supply 23 or the voltage-regulated power supply of the power supply 23), and the second end is connected to the first end of the second capacitor C2; the second capacitor C2 The second terminal is connected to ground through resistor R1;
  • the first end of the switch tube Q1 of the switching circuit 221 is connected to Vbat, the second end is connected to the first end of the switch tube Q2, and the second end of the switch tube Q2 is grounded through the resistor R1; of course, the switching tube Q1 and the switch tube Q2
  • the control terminals are all connected to the driver 223, and are driven by the driver 223 to conduct on and off; the switch tube Q1 and the switch tube Q2 include but are not limited to IGBT, MOS tube, etc.
  • the first end of the inductor L is connected to the second end of the switch Q1, and the second end is connected to the second end of the first capacitor C1.
  • the withstand voltage values of the first capacitor C1 and the second capacitor C2 are much greater than the output voltage value of the power supply 23 .
  • the output voltage of the power supply 23 is basically about 4V
  • the withstand voltage of the first capacitor C1 and the second capacitor C2 is 30-80V.
  • the connection state of the first capacitor C1 and the second capacitor C2 and the inductor L changes.
  • the switch Q1 is turned on and the switch Q2 is turned off, the first capacitor C1 and the inductor L together form a closed LC series circuit, and the second capacitor C2 and the inductor L form two ends connected to Vbat and ground respectively.
  • the circuit starts from Vbat, passes through the inductor L and the second capacitor C2 in sequence, and ends at the ground terminal; and when the switch Q1 is turned off and the switch Q2 is turned on, the formed circuit is the same as the above
  • the first capacitor C1 and the inductor L An LC series circuit is formed with both ends connected to Vbat and ground respectively, and the second capacitor C2 and the inductor L together form a closed LC series circuit.
  • the first capacitor C1 and the second capacitor C2 can form respective LC series circuits with the inductor L.
  • the implementation also includes a detection circuit for synchronously detecting changes in current, voltage or period during the resonance process of the resonant circuit 222.
  • the synchronization detection circuit includes an operational amplifier U1, and the detection signal input end is connected to the second end of the inductor L (shown as the JC connection end in the figure).
  • the reference signal terminal of the operational amplifier U1 is directly set to 0, making it a zero-crossing comparator for detecting the moment when the resonant current of the resonant circuit 222 is 0, and then the controller is based on this The detection results are combined with the zero-crossing time point to obtain changing physical parameters such as current, voltage or period of the resonant circuit 222 .
  • the detection circuit is used to sample the current value flowing through the resonant circuit 222, which may use a high-end current detection method, such as setting a sampling resistor between Vbat and the resonant circuit 222, or other A low-end current detection method can also be used, for example, a sampling resistor is arranged between the resonant circuit 222 and the ground terminal.
  • the resonant voltage of the resonant circuit 222 (shown as V11 in the figure) can be divided by the RC integrating circuit composed of D11, R16 and C13, and then divided by the voltage dividing circuit of R11 and R14. Then, it is input to the negative input terminal of comparator U11; when the voltage of the negative input terminal of comparator U11 is higher than the voltage of the positive input terminal, the output of comparator U11 (OUT terminal in the figure) is low level; otherwise, it outputs high level.
  • the controller can control the power supply of the power supply 23 according to the level output by the comparator U11.
  • Comparator U11 can be integrated in the controller, or it is also feasible to be independent of the controller.
  • the senor 11 is made of a material with a preset Curie temperature.
  • the temperature of the sensor 11 gradually approaches its Curie temperature point, the magnetism of the material will gradually disappear.
  • the relationship between the inductor L and the sensor 11 The magnetic coupling coefficient between the magnetic field generating circuit will gradually decrease, and the Q value (quality factor) of the magnetic field generating circuit will gradually increase; at this time, the electrical characteristic parameters of the magnetic field generating circuit, such as the resonant voltage value and current value, will change accordingly.
  • the resonant voltage value or current value in the resonant circuit 222 will undergo a sudden change, thereby rising to a very high value.
  • the resonant circuit when the sensor in the atomizer is not coupled to the resonant circuit, that is, when the power component is in a no-load state, its resonant voltage or current value will be significantly higher than when the power component is in a load state.
  • the controller can determine whether there are adverse conditions in the sensor 11 based on the electrical characteristic parameters of the magnetic field generating circuit, and then adjust the power supply of the power supply 23; for example: when the sensor 11 is in adverse conditions, shut down or limit the generation of the magnetic field by the power supply 23. power supply to the circuit.
  • the abscissa in Figure 6 represents the temperature of the sensor 11, and the ordinate represents the peak value of the resonant voltage of the magnetic field generating circuit.
  • the magnetic coupling coefficient between the inductor L and the sensor 11 is large at this time, the Q value of the magnetic field generating circuit is small, and the resonance of the magnetic field generating circuit The voltage peak V0 is also smaller.
  • the temperature of the sensor 11 is the Curie temperature T2
  • the magnetic coupling coefficient between the inductor L and the sensor 11 is small, the Q value of the magnetic field generating circuit is large, and the resonance voltage peak value V2 of the magnetic field generating circuit is also large.
  • the controller can monitor the resonance voltage peak value of the magnetic field generation circuit, and determine whether there is an adverse condition in the sensor 11 based on the resonance voltage peak value of the magnetic field generation circuit. For example, when it is monitored that the resonant voltage peak value V1 of the magnetic field generating circuit reaches or exceeds V2, or when the deviation value of the resonant voltage peak value V1 and V2 is less than a preset deviation threshold value, it can be determined that there is an adverse condition in the sensor 11. At this time, it can be Turn off or limit the power supply of the power supply 23 to the magnetic field generating circuit.
  • the senor is used to heat the liquid matrix to vaporize it to generate an aerosol during the puffing process of the electronic atomization device.
  • the temperature of the sensor gradually increases until the liquid The atomization temperature of the substrate, during which the resonant voltage or resonant current in the resonant circuit coupled to it is gradually reduced.
  • the temperature of the receptor will not change drastically, so the resonant voltage or resonant current in the resonant circuit remains within a stable range.
  • the temperature of the sensor When the liquid matrix is missing and the sensor is not completely infiltrated, the temperature of the sensor will rise sharply but does not reach the Curie temperature. At this time, the resonant voltage or resonant current in the resonant circuit will decrease sharply, and the controller
  • the loss of liquid near the receptor can be determined by monitoring the decrease in electrical characteristic parameters such as the above-mentioned resonant voltage.
  • the temperature of the receptor increases to a point where temperature point, when the magnetism of the sensor is close to disappearing, the resonant voltage or resonant current in the resonant circuit will suddenly change and rise sharply.
  • the controller can monitor the sharp rise in the above-mentioned resonant voltage and other electrical characteristic parameters to determine the liquid near the sensor. of complete exhaustion.
  • the controller can monitor the electrical characteristic parameters of the magnetic field generating circuit to determine whether there is an adverse condition on the sensor 11 .
  • the atomizer 10 coupled to the power supply assembly 20 is counterfeit, substandard or damaged.
  • the atomizer 10 is connected before and after the power supply assembly 20, the Q values of the magnetic field generating circuit are also different, and the corresponding resonant voltage values and current values are also different. Based on this situation, the controller can monitor the electrical characteristic parameters of the magnetic field generating circuit to determine whether there is an adverse condition on the sensor 11 . For example: the atomizer 10 is connected to the power supply assembly 20 and the atomizer 10 is removed from the power supply assembly 20 .
  • adverse conditions for the susceptor 11 include insufficient or depleted liquid matrix delivered or provided to the susceptor 11 .
  • the unfavorable condition of the sensor 11 is that the operating parameters of the sensor 11 such as temperature and voltage exceed normal expected values, that is, the working state of the sensor 11 exceeds the expected normal range, which may cause safety risks.
  • a disadvantage of the sensor 11 is that the atomizer 10 is not coupled (connected) to the power supply assembly 20 , or other foreign objects are coupled to the power supply assembly 20 . Similar to the above, when the atomizer 10 is not coupled to the power component 20, the magnetic coupling coefficient between the inductor L and the sensor 11 is small; when the atomizer 10 is coupled to the power component 20, the magnetic coupling coefficient between the inductor L and the sensor 11 The magnetic coupling coefficient between them will increase, and the Q (quality factor) value of the corresponding magnetic field generating circuit will decrease.
  • a disadvantage of the sensor 11 is that the atomizer 10 coupled to the power supply assembly 20 is counterfeit, substandard or damaged. For a counterfeit or substandard or damaged atomizer 10, it does not have the same operating parameters or characteristics (such as voltage, current) as the standard sensor 11 under a given power.
  • the liquid matrix provided to the susceptor 11 by the atomizer 10 is undesirable; specifically, the undesired liquid matrix may have a different composition than the desired liquid matrix resulting in a different viscosity, thermal volume or boiling point, etc., then the heated atomizer has a higher or lower temperature or power or electricity than expected.
  • the electrical characteristic parameters of the magnetic field generating circuit include the resonant voltage value of the resonant circuit 222 , such as the resonant voltage peak value.
  • the controller is further configured to determine whether there is an adverse condition in the sensor 11 based on a comparison result between the resonance voltage value and a preset threshold. Taking the liquid matrix delivered or provided to the sensor 11 as an example of insufficient or exhausted, the resonance voltage value is compared with the preset threshold. If the resonance voltage value is greater than the preset threshold, it can be determined that the sensor 11 is in an over-temperature state and dry burning occurs.
  • the controller is further configured to determine whether there is an adverse condition in the sensor 11 based on the amount or rate of change of the resonant voltage value of the magnetic field generating circuit within a predetermined time. For example, during the suction process, the change amount ⁇ V or the change rate ( ⁇ V/t1) of the resonant voltage value within the predetermined time t1 is calculated to exceed the preset threshold range to determine whether there is an adverse condition in the working condition of the sensor 11; the predetermined time may be The empirical value or experimental value is not limited here. The change amount ⁇ V or change rate ( ⁇ V/t1) of the above resonant voltage value may be increased or decreased compared with the initial voltage value.
  • the controller is configured to determine whether the sensor 11 exists based on the ratio between the change amount ⁇ V of the resonant voltage value of the magnetic field generating circuit relative to the initial value and the initial value V0 ( ⁇ V/V0). Adverse conditions.
  • a threshold suitable for normal operation can be selected based on the ratio of ⁇ V/V0. When the ratio of ⁇ V/V0 is greater than the threshold, it can be determined that an adverse condition exists.
  • the controller is further configured to generate a circuit based on the magnetic field
  • the comparison result between the duration of the resonance voltage value reaching the preset threshold from the initial value and the preset time threshold determines whether there is an adverse condition in the sensor 11 .
  • the magnetic field generation circuit containing the standard sensor 11 can reach the preset threshold within the expected time period, while the counterfeit, substandard or damaged atomizer 10, the magnetic field generation circuit can reach the preset threshold within the expected time period. Otherwise, the preset threshold can be reached; based on this, it can be determined that the sensor 11 has adverse conditions.
  • the initial value is not limited and can be zero, or a value between zero and the peak value of the resonant voltage.
  • the above expected time period is, for example, 50 ms to 200 ms; or it may be 80 ms to 200 ms; or in some preferred implementations, the expected time period is between 50 ms and 150 ms.
  • the controller is further configured to stop the power supply of the power supply 23 when the number of adverse conditions present in the sensor 11 is greater than a preset threshold.
  • LCC series resonant circuits can also be LC series resonant circuits (including but not limited to half-bridge series resonance, full-bridge series resonance), LC parallel resonant circuits, etc. .
  • the electrical characteristic parameters of the magnetic field generating circuit include at least one of the following: current value, quality factor Q, resonant frequency, inductance value, and electrical characteristic parameters derived based on the aforementioned parameters. These electrical characteristic parameters can be directly measured or calculated.

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Abstract

一种电源组件（20）、电子雾化装置（100）及其控制方法，该电子雾化装置（100）包括储液腔，用于存储液体基质；电源（23），用于提供电力；磁场产生电路，与电源（23）电性连接，被配置为产生变化的磁场；感受器（11），被配置为被变化的磁场穿透而发热，以对液体基质进行加热生成气溶胶；控制器，与磁场产生电路电性，被配置为监控磁场产生电路的电特性参数，并且基于磁场产生电路的电特性参数来确定感受器（11）是否存在不利条件。该电子雾化装置（100）通过监控磁场产生电路的电特性参数，进而基于电特性参数来确定感受器（11）是否存在不利条件，提升了用户的使用体验。

Description

电源组件、电子雾化装置及其控制方法
相关申请的交叉参考
本申请要求于2022年06月10日提交中国专利局，申请号为202210657270.4，申请名称为“电源组件、电子雾化装置及其控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子雾化技术领域，尤其涉及一种电源组件、电子雾化装置及其控制方法。
背景技术
作为一示例的电子雾化装置，通常包含液体，该液体被加热元件加热以使其发生汽化，从而产生可吸入的气溶胶；该液体可包含尼古丁和/或芳香剂和/或气溶胶生成物质(例如，甘油)。
以上加热装置，通常采用监测加热元件自身的电阻变化来获取加热元件的工作温度，进而确定加热元件的工作温度是否超出预设范围，以及据此来判断是否存在供液不足等不利条件。
发明内容
本申请一方面提供一种电子雾化装置，包括：
储液腔，用于存储液体基质；
电源，用于提供电力；
磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
感受器，被配置为被变化的磁场穿透而发热，以对所述液体基质进行加热生成气溶胶；
控制器，与所述磁场产生电路电性连接；所述控制器被配置为监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
本申请另一方面提供一种电源组件，用于对电子雾化装置的雾化器供电；所述雾化器包括用于存储液体基质的储液腔、和用于加热所述液体基质以生成气溶胶的感受器；所述电源组件包括：
电源，用于提供电力；
磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
控制器，与所述磁场产生电路电性连接；所述控制器被配置为监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
本申请另一方面还提供一种电子雾化装置的控制方法，所述电子雾化装置包括：
储液腔，用于存储液体基质；
电源，用于提供电力；
磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
感受器，被配置为被变化的磁场穿透而发热，以对所述液体基质进行加热生成气溶胶；
所述方法包括：
监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
以上电子雾化装置，通过监控磁场产生电路的电特性参数，进而基于电特性参数来确定感受器是否存在不利条件，提升了用户的使用体验。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请实施方式提供的电子雾化装置示意图；
图2是本申请实施方式提供的电子雾化装置的线框图；
图3是本申请实施方式提供的开关电路和谐振电路示意图；
图4是本申请实施方式提供的检测电路示意图；
图5是本申请另一实施方式提供的检测电路示意图；
图6是本申请实施方式提供的感受器的温度与磁场产生电路的谐振电压峰值之间的关系示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
图1是本申请实施方式提供的电子雾化装置示意图。
如图1所示，电子雾化装置100包括雾化器10和电源组件20。雾化器10与电源组件20一体形成。
雾化器10包括感受器11以及储液腔(未示出)。储液腔用于存储可雾化的液体基质；感受器11配置为与电感器21感应耦合，在被变化磁场穿透下发热，进而对液体基质进行加热，以生成供吸食的气溶胶。
液体基质优选地包含含烟草的材料，所述含烟草的材料包含在加热时从液体基质释放的挥发性烟草香味化合物。替代地或另外，液体基质可以包含非烟草材料。液体基质可以包括水、乙醇或其它溶剂、植物提取物、尼古丁溶液和天然或人造的调味剂。优选的是，液体基质进一步包含气溶胶形成剂。合适的气溶胶形成剂的实例是甘油和丙二醇。
一般的，感受器11可选用以下至少之一材料制成：铝、铁、镍、铜、青铜、钴、普通碳钢、不锈钢、铁素体不锈钢、马氏体不锈钢或奥氏体不锈钢。在本示例中，通过选取合适材料，以使得感受器11 具有预设的居里温度，该预设的居里温度大于液体基质的雾化或者蒸发温度。以某种液体基质的雾化温度为250℃为例，预设的居里温度可以为280℃、290℃、300℃、310℃或320℃等等，即预设的居里温度与液体基质的雾化温度的差值介于30℃～70℃，优选的介于30℃～60℃，进一步优选的介于40℃～60℃；在一具体示例中，预设的居里温度与液体基质的雾化温度的差值为50℃。预设的居里温度介于250℃～450℃，优选的介于250℃～400℃，进一步优选的介于200℃～350℃。
电源组件20包括电感器21、电路22以及电源23。
电感器21在交变电流下产生变化的磁场，电感器21包括但不限于感应线圈。
电源23提供用于操作电子雾化装置100的电力。电源23可以是可反复充电电芯或一次性电芯。
电路22可以控制电子雾化装置100的整体操作。电路22不仅控制电源23和电感器21的操作，而且还控制电子雾化装置100中其它元件的操作。
可以理解的，除了图1中给出的部分器件外，电子雾化装置100还可以包括其它部件，例如：液体传递元件等等，液体传递单元可以为如棉纤维、金属纤维、陶瓷纤维、玻璃纤维、多孔陶瓷等，液体传递单元可以是棒状或管状或杆状等形状，还可以是板状、片状或者是表面具有凹腔的凹型块状、或者是拱形结构的拱形形状等等。
与图1示例不同的是，在其它示例中，雾化器10与电源组件20可分体形成，例如：雾化器10与电源组件20可以是通过卡扣连接、磁性连接等方式可拆卸式地连接。
为了能准确监测感受器11的工作状态，图2和图3示出了电路22一个实施例的基本组件的示意图；该电路22包括：
磁场产生电路，包括开关电路221和谐振电路222。
开关电路221，即为由晶体管开关组成的半桥电路；包括开关管Q1和开关管Q2，用于通过交替的通断切换使谐振电路222产生谐振。
谐振电路222，由电感器21(图中的L所示)与第一电容C1和 第二电容C2组成的；谐振电路222用于在谐振的过程中形成流过电感器L的交变电流，从而使电感器L产生交变磁场诱导感受器11发热。
驱动器223，用于根据控制器(附图未示出)的控制信号控制开关电路221的开关管Q1和开关管Q2交替的导通和断开。
驱动器223采用的是常用的FD2204型号的开关管驱动器，其是由控制器以PWM方式控制的，根据PWM的脉冲宽度分别由第3和第10I/O口交替发出高电平/低电平进而驱动开关管Q1、开关管Q2的导通时间，以控制谐振电路222产生谐振。在其它示例中，驱动器223集成在控制器中或者由控制器来实现，也是可行的。
在连接上，第一电容C1的第一端与Vbat(Vbat可以是电源23或者电源23经过调压后的电源)连接、第二端与第二电容C2的第一端连接；第二电容C2的第二端通过电阻R1接地；
开关电路221的开关管Q1的第一端与Vbat连接、第二端与开关管Q2的第一端连接，开关管Q2的第二端通过电阻R1接地；当然，开关管Q1和开关管Q2的控制端均是连接至驱动器223的，进而由驱动器223的驱动下进行导通和断开；开关管Q1和开关管Q2包括但不限于IGBT、MOS管等等。
电感器L的第一端与开关管Q1的第二端连接、第二端与第一电容C1的第二端连接。同时，在谐振电路222的硬件选择上，第一电容C1和第二电容C2的耐压值远大于电源23的输出电压值。例如，在通常的实施中，采用的电源23的输出电压基本大约在4V左右，而采用的第一电容C1和第二电容C2的耐压值为30～80V。
以上结构的谐振电路222在开关管Q1和开关管Q2的切换状态下，第一电容C1和第二电容C2与电感器L的连接状态是变化的。当开关管Q1导通、开关管Q2断开时，第一电容C1与电感器L它们共同形成一个闭合的LC串联回路、而第二电容C2与电感器L形成两端分别与Vbat和地连接的LC串联回路(该回路始于Vbat、依次经过电感器L和第二电容C2后，止于接地端)；而当开关管Q1断开、开关管Q2导通时，所构成的回路与上述状态相反，第一电容C1与电感器L 形成两端分别与Vbat和地连接的LC串联回路、而第二电容C2与电感器L共同形成一个闭合的LC串联回路。在各自的不同状态下，第一电容C1和第二电容C2均能与电感器L形成各自的LC串联回路。
为了准确检测谐振电路222的振荡过程和周期等细节，参见图4所示，在实施中还包括一检测电路，作用是用于同步检测谐振电路222的谐振过程中的电流、电压或周期等变化的物理参数。具体在图4所示的实施例中，同步检测电路包括运算放大器U1，检测的信号输入端是与电感器L的第二端连接的(图中的JC连接端所示)。在可选的实施中，将运算放大器U1的基准信号端直接设定为0，使其成为一个过零比较器，用于检测谐振电路222的谐振电流为0的时刻，而后控制器根据这一检测结果结合过零的时间点获取谐振电路222的电流、电压或周期等变化的物理参数。需要说明的是，在一些实施例中，检测电路用于采样流经谐振电路222中的电流值，其可以采用高端电流检测方法，例如将采样电阻设置在Vbat与谐振电路222之间，或者其还可以采用低端电流检测方法，例如将采样电阻设置在谐振电路222与接地端之间。
如图5所示，在另一实施中，谐振电路222的谐振电压(图中的V11所示)可通过D11、R16和C13组成的RC积分电路，再经过R11和R14的分压电路分压后，输入到比较器U11的负输入端；当比较器U11负输入端的电压高于正输入端的电压时，比较器U11输出(图中的OUT端)低电平；反之输出高电平。控制器根据比较器U11输出的电平，可以控制电源23的电力供给。比较器U11可以集成在控制器中，或者独立于控制器也是可行的。
在一示例中，感受器11采用具有预设的居里温度的材料制成，当感受器11的温度逐步接近其居里温度点时，材料的磁性将逐步消失，此时电感器L与感受器11之间的磁耦合系数将逐步减小，磁场产生电路的Q值(品质因子)将逐步加大；此时，磁场产生电路的电特性参数，例如谐振电压值、电流值，将相应地产生变化。当感受器11的温度升高至到达或者接近居里温度点时，谐振电路222中的谐振电压值或电流值将产生突变，从而升高至一个很高的值。在另一示 例中，雾化器中感受器没有耦合至谐振电路即电源组件处在空载状态下时，其谐振电压值或电流值将明显高于电源组件处在负载状态下的情形。
因此，控制器可根据磁场产生电路的电特性参数，确定感受器11是否存在不利条件，进而调整电源23的电力供给；例如：在感受器11处在不利条件下，关断或限制电源23对磁场产生电路的电力供给。以图6为例，图6中横坐标表示感受器11的温度，纵坐标表示磁场产生电路的谐振电压峰值。在感受器11的温度为T0时，由于其温度未达到居里温度T2，此时电感器L与感受器11之间的磁耦合系数较大，磁场产生电路的Q值较小，磁场产生电路的谐振电压峰值V0也较小。在感受器11的温度为居里温度T2时，电感器L与感受器11之间的磁耦合系数较小，磁场产生电路的Q值较大，磁场产生电路的谐振电压峰值V2也较大。基于谐振电压峰值与温度的这种关系，控制器可监测磁场产生电路的谐振电压峰值，并根据磁场产生电路的谐振电压峰值，确定感受器11是否存在不利条件。例如，当监测到磁场产生电路的谐振电压峰值V1达到或超过V2时，或者谐振电压峰值V1与V2的偏差值小于预先设定的偏差阈值时，即可确定感受器11存在不利条件，此时可关断或限制电源23对磁场产生电路的电力供给。
在另一些实施例中，对于某一类型材料的感受器而言，在电子雾化装置抽吸期间该感受器用于加热液体基质使其汽化生成气溶胶，在抽吸初期感受器温度逐步升高直到液体基质的雾化温度，在此过程中与其耦合的谐振电路中的谐振电压或谐振电流是逐步降低的。在后续的气溶胶产生过程中，在液体基质供应充足感受器被完全浸润的情况下，感受器的温度不会产生剧烈变化，因此谐振电路中的谐振电压或谐振电流保持在一个稳定的区间内。在液体基质缺失存量较少即感受器不被完全浸润的情况下，感受器的温度会急剧升高但未到达居里温度，此时谐振电路中的谐振电压或谐振电流会跟随着急剧降低，控制器可以监控上述谐振电压等电特性参数的降低来确定感受器附近液体的缺失。在液体基质完全耗尽的情况下，感受器的温度升高到达居 里温度点，此时感受器的磁性接近消失，谐振电路中的谐振电压或谐振电流会产生突变转而急剧升高，控制器可以监控上述谐振电压等电特性参数的急剧升高来确定感受器附近液体的完全耗尽。
在另一示例中，由于感受器11的材料、尺寸、体积等因素所造成的差异，不同的感受器11与电感器L之间的磁耦合系数是不同的，磁场产生电路的Q值也是不同的，对应的谐振电压值、电流值也是不同的。基于此种情形，控制器可监测磁场产生电路的电特性参数，确定感受器11是否存在不利条件。例如：耦合于电源组件20的雾化器10为仿冒、不合格或损坏的。
在另一示例中，雾化器10连接于电源组件20的前后，磁场产生电路的Q值也是不同的，对应的谐振电压值、电流值也是不同的。基于此种情形，控制器可监测磁场产生电路的电特性参数，确定感受器11是否存在不利条件。例如：雾化器10连接于电源组件20、雾化器10从电源组件20中移除。
在一个具体的实施中，感受器11的不利条件包括传递或提供给感受器11的液体基质不足或耗尽的情况。一般来说，在恒功率或电力提供给谐振电路及感受器11时，向感受器11传递或提供的液体基质越少，感受器11的温度越高。
在又一个实施中，感受器11的不利条件是感受器11的工作参数例如温度、电压超过正常期望值，即感受器11的工作状态超出所期望的正常范围，可能存在安全风险。
在又一个变化的实施中，感受器11的不利条件是雾化器10没有耦合于(连接于)电源组件20、或者是其它异物耦合于电源组件20。与前述类似的，雾化器10没有耦合于电源组件20时，电感器L与感受器11之间的磁耦合系数较小；雾化器10耦合于电源组件20时，电感器L与感受器11之间的磁耦合系数将增大，对应的磁场产生电路的Q(品质因子)值将减小。若是其它异物耦合于电源组件20，若该异物与感受器11之间存在磁耦合，则在给定的电力下与标准的感受器11不具备相同的工作参数或特性(例如电压、电流)；若该异物与感受器11之间不存在磁耦合，则耦合前后的磁耦合系数没有变 化。
在又一个变化的实施中，感受器11的不利条件是耦合于电源组件20的雾化器10为仿冒、不合格或损坏的。对于仿冒或不合格或损坏的雾化器10，在给定的电力下与标准的感受器11不具备相同的工作参数或特性(例如电压、电流)。
在另一个实施的不利条件中，由雾化器10提供给感受器11的液体基质是非期望的；具体，非期望的液体基质可能与所期望的液体基质具有不同的成分导致具有不同的粘度、热容或沸点等，则在被加热雾化中具有比所预期的更高或更低的温度或功率或电力。
在图3所示的实施例中，磁场产生电路的电特性参数包括谐振电路222的谐振电压值，例如谐振电压峰值。
基于同步检测电路检测到的谐振电压值：
在一个实施例中，所述控制器还被配置为根据所述谐振电压值与预设阈值的比较结果，确定感受器11是否存在不利条件。以传递或提供给感受器11的液体基质不足或耗尽为例，将谐振电压值与预设阈值进行比较，若谐振电压值大于预设阈值即可确定感受器11处于过温状态，发生干烧。
在一个实施例中，所述控制器还被配置为根据所述磁场产生电路的谐振电压值在预定时间内的变化量或者变化率，确定感受器11是否存在不利条件。例如，在抽吸过程中计算在预定时间t1内谐振电压值的变化量ΔV或变化率(ΔV/t1)超出预设阈值范围，来确定感受器11的工作情况是否存在不利条件；预定时间可以是经验值或者实验值，在此不作限定。以上谐振电压值的变化量ΔV或变化率(ΔV/t1)相比初始电压值可以是升高或者降低的。
在一个实施例中，所述控制器被配置为根据所述磁场产生电路的谐振电压值相对初始值的变化量ΔV与该初始值V0之间的比率(ΔV/V0)，确定感受器11是否存在不利条件。具体实施中，可以根据ΔV/V0的比率选取符合正常工作的阈值，当ΔV/V0的比率大于阈值时，即可确定存在不利条件。
在一个实施例中，所述控制器还被配置为根据所述磁场产生电路 的谐振电压值自初始值达到预设阈值的持续时间与预设时间阈值的比较结果，确定感受器11是否存在不利条件。例如：在给定的电力下，含有标准的感受器11的磁场产生电路在预期时间段以内即可达到预设阈值，而仿冒、不合格或损坏的雾化器10，磁场产生电路在预期时间段以外才能达到预设阈值；据此可确定感受器11存在不利条件。初始值不作限定，可以为零值，也可以为零值与谐振电压峰值之间的一个值。在一些可选的实施中，以上预期时间段例如是50ms～200ms；或者还可以是80ms～200ms等；或者在一些优选的实施中，预期时间段在50ms～150ms之间。
在一个实施例中，所述控制器还被配置为在感受器11存在不利条件的次数大于预设阈值，停止电源23的电力供给。
需要说明的是，以上示例仅以LCC串联谐振电路进行说明；在其它示例中，还可以为LC串联谐振电路(包括但不限于半桥串联谐振、全桥串联谐振)、LC并联谐振电路等等。
需要说明的是，以上示例仅以磁场产生电路的谐振电压为例进行说明。可以想象得到的是，所述磁场产生电路的电特性参数包括以下至少之一：电流值、品质因子Q、谐振频率、电感值、基于前述参数衍生出来的电特性参数。这些电特性参数可以是直接测量得到或者通过计算得到。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (15)

  1. 一种电子雾化装置，其特征在于，包括：
    储液腔，用于存储液体基质；
    电源，用于提供电力；
    磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
    感受器，被配置为被变化的磁场穿透而发热，以对所述液体基质进行加热生成气溶胶；
    控制器，与所述磁场产生电路电性连接；所述控制器被配置为监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
  2. 如权利要求1所述的电子雾化装置，其特征在于，所述感受器的材料具有预设的居里温度，所述预设的居里温度大于所述液体基质的蒸发温度。
  3. 如权利要求2所述的电子雾化装置，其特征在于，预设的居里温度与所述液体基质的蒸发温度的差值介于30℃～70℃。
  4. 如权利要求1所述的电子雾化装置，其特征在于，所述感受器的不利条件包括以下至少之一：
    传递或提供给所述感受器的液体基质不足、耗尽或者是非期望的；
    所述感受器的工作参数超过正常期望值；
    所述电子雾化装置包括电源组件以及可移除地连接至所述电源组件的雾化器，连接于所述电源组件的所述雾化器为仿冒、不合格或损坏的，或者所述雾化器未连接于所述电源组件，或者其它异物连接于所述电源组件。
  5. 如权利要求1所述的电子雾化装置，其特征在于，所述磁场产生电路的电特性参数包括以下至少之一：
    电流值、谐振电压值、品质因子Q、谐振频率、电感值以及基于前述参数衍生出来的电特性参数。
  6. 如权利要求1所述的电子雾化装置，其特征在于，所述控制器还被配置为根据所述磁场产生电路的电特性参数与预设阈值的比 较结果，确定所述感受器是否存在不利条件。
  7. 如权利要求1所述的电子雾化装置，其特征在于，所述控制器还被配置为根据所述磁场产生电路的电特性参数在预定时间内的变化量或者变化率，确定所述感受器是否存在不利条件。
  8. 如权利要求1所述的电子雾化装置，其特征在于，所述控制器被配置为根据所述磁场产生电路的电特性参数相对初始值的变化量与该初始值之间的比率，确定所述感受器是否存在不利条件。
  9. 如权利要求1所述的电子雾化装置，其特征在于，所述控制器还被配置为根据所述磁场产生电路的电特性参数自初始值达到预设阈值的持续时间与预设时间阈值的比较结果，确定所述感受器是否存在不利条件。
  10. 如权利要求1所述的电子雾化装置，其特征在于，所述控制器还被配置为基于所述感受器处在不利条件下，关断或限制所述电源对所述磁场产生电路的电力供给。
  11. 如权利要求10所述的电子雾化装置，其特征在于，所述控制器还被配置为在所述感受器存在不利条件的次数大于预设阈值，停止所述电源对所述磁场产生电路的电力供给。
  12. 如权利要求1所述的电子雾化装置，其特征在于，所述磁场产生电路包括开关电路和谐振电路；所述谐振电路包括电感器和电容器；
    所述开关电路被配置为在脉冲信号的驱动下交替地导通和断开，以使得所述谐振电路中的电感器流过交变电流并产生变化的磁场。
  13. 如权利要求1所述的电子雾化装置，其特征在于，所述电子雾化装置包括电源组件以及可移除地连接至所述电源组件的雾化器；
    其中，所述电源、所述磁场产生电路和所述控制器均设置在所述电源组件中；所述感受器设置在所述雾化器中，且所述雾化器包含液体基质。
  14. 一种电源组件，用于对电子雾化装置的雾化器供电；所述雾化器包括用于存储液体基质的储液腔、和用于加热所述液体基质以生成气溶胶的感受器；其特征在于，所述电源组件包括：
    电源，用于提供电力；
    磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
    控制器，与所述磁场产生电路电性连接；所述控制器被配置为监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
  15. 一种电子雾化装置的控制方法，所述电子雾化装置包括：
    储液腔，用于存储液体基质；
    电源，用于提供电力；
    磁场产生电路，与所述电源电性连接；所述磁场产生电路被配置为产生变化的磁场；
    感受器，被配置为被变化的磁场穿透而发热，以对所述液体基质进行加热生成气溶胶；
    其特征在于，所述方法包括：
    监控所述磁场产生电路的电特性参数，并且基于所述磁场产生电路的电特性参数来确定所述感受器是否存在不利条件。
PCT/CN2023/098511 2022-06-10 2023-06-06 电源组件、电子雾化装置及其控制方法 WO2023236934A1 (zh)

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WO2020020951A1 (en) * 2018-07-26 2020-01-30 Philip Morris Products S.A. System for generating an aerosol
CN111935861A (zh) * 2020-07-13 2020-11-13 深圳麦时科技有限公司 电磁加热电路、控制方法及电子雾化装置
CN112806618A (zh) * 2019-10-31 2021-05-18 深圳市合元科技有限公司 气雾生成装置及控制方法
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JP6967169B1 (ja) * 2021-03-31 2021-11-17 日本たばこ産業株式会社 誘導加熱装置及びその動作方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020020951A1 (en) * 2018-07-26 2020-01-30 Philip Morris Products S.A. System for generating an aerosol
CN113993405A (zh) * 2019-06-28 2022-01-28 尼科创业贸易有限公司 用于气溶胶生成装置的设备
CN112806618A (zh) * 2019-10-31 2021-05-18 深圳市合元科技有限公司 气雾生成装置及控制方法
CN111935861A (zh) * 2020-07-13 2020-11-13 深圳麦时科技有限公司 电磁加热电路、控制方法及电子雾化装置
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