Power supply assembly, electronic atomization device and control method thereof

Abstract

A power supply assembly (20), an electronic atomization device (100), and a control method thereof. The electronic atomization device (100) includes a liquid storage cavity used for storing a liquid matrix, a power supply (23) used for supplying power, a magnetic field generation circuit electrically connected to the power supply (23) and configured to generate a changing magnetic field, a susceptor (11) configured to be penetrated by the changing magnetic field to generate heat and heat the liquid matrix to generate an aerosol, and a controller configured to electrically monitor electrical characteristic parameters of the magnetic field generation circuit and determine whether there are adverse conditions for the susceptor (11) based on the electrical characteristic parameters of the magnetic field generation circuit. In the electronic atomization device (100), by monitoring the electrical characteristic parameters of the magnetic field generation circuit and determining whether there are adverse conditions for the susceptor (11) based on the electrical characteristic parameters, the user experience is improved.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on June 10, 2022, with the application number 202210657270.4 and the title of the application "Power Supply Assembly, Electronic Atomization Device and Control Method Thereof", and all of its content is incorporated herein by reference.

[0002] This application relates to the technical field of electronic atomization, and in particular, to a power supply assembly, an electronic atomization device, and a control method thereof.

Background Art

[0003] As an example of an electronic atomization device, it usually contains a liquid that is heated and vaporized by a heating element to generate an inhalable aerosol, and the liquid may contain nicotine and / or fragrance and / or aerosol - generating substances (such as glycerol).

[0004] The above - mentioned heating device usually obtains the operating temperature of the heating element by monitoring the resistance change of the heating element itself, determines whether the operating temperature of the heating element exceeds a preset range, and based on this, determines whether there are adverse conditions such as insufficient liquid supply.

Summary of the Invention

[0005] On one aspect, this application a liquid storage cavity used to store a liquid matrix, a power supply used to supply power, a magnetic field generation circuit electrically connected to the power supply and configured to generate a changing magnetic field, a susceptor penetrated by the changing magnetic field to generate heat and configured to heat the liquid matrix to generate an aerosol. A controller that is electrically connected to the magnetic field generation circuit, monitors the electrical characteristic parameters of the magnetic field generation circuit, and determines whether there are any adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit, is provided in an electronic atomization device.

[0006] In another aspect, the present application A power supply assembly used to supply power to an atomizer of an electronic atomization device, the atomizer including a liquid storage cavity used to store a liquid matrix and a susceptor used to heat the liquid matrix to generate an aerosol, A power supply used to supply power, A magnetic field generation circuit that is electrically connected to the power supply and configured to generate a changing magnetic field, A power supply assembly is provided, including a controller that is electrically connected to the magnetic field generation circuit, monitors the electrical characteristic parameters of the magnetic field generation circuit, and determines whether there are any adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit.

[0007] In yet another aspect, the present application A liquid storage cavity used to store a liquid matrix, A power supply used to supply power, A magnetic field generation circuit that is electrically connected to the power supply and configured to generate a changing magnetic field, A control method for an electronic atomization device, including a susceptor that is penetrated by a changing magnetic field to generate heat and configured to heat the liquid matrix to generate an aerosol, A control method for an electronic atomization device is further provided, including monitoring the electrical characteristic parameters of the magnetic field generation circuit and determining whether there are any adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit.

[0008] In the above-mentioned electronic atomization device, the electrical characteristic parameters of the magnetic field generation circuit are monitored, and based on the electrical characteristic parameters, it is determined whether there are unfavorable conditions for the susceptor, thereby improving the user experience.

Brief Description of the Drawings

[0009] One or more embodiments are exemplarily described by corresponding drawings, but these exemplary descriptions do not limit the embodiments. Elements having the same reference numerals in the drawings represent similar elements, and unless otherwise specified, the drawings in the drawings do not limit the scale.

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0011] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present application, hereinafter, with reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Naturally, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0012] FIG. 1 is a schematic diagram of an electronic atomization device provided in an embodiment of the present application.

[0013] As shown in FIG. 1, 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.

[0014] The atomizer 10 includes a susceptor 11 and a liquid storage cavity (not shown). The liquid storage cavity is used to store an atomizable liquid matrix. The susceptor 11 is inductively coupled to an inductor 21 and is penetrated by a changing magnetic field to generate heat, and is configured to heat the liquid matrix to generate an aerosol for inhalation.

[0015] The liquid matrix preferably includes a tobacco-containing material, and the tobacco-containing material includes volatile tobacco flavor compounds released from the liquid matrix when heated. Alternatively or additionally, the liquid matrix may include a non-tobacco material. The liquid matrix may include water, ethanol or other solvents, plant extracts, nicotine solutions and natural or artificial flavoring agents. Preferably, the liquid matrix further includes an aerosol forming agent. Examples of suitable aerosol forming agents are glycerol and propylene glycol.

[0016] Generally, susceptor 11 can be made of at least one material among aluminum, iron, nickel, copper, bronze, cobalt, common carbon steel, stainless steel, ferritic stainless steel, martensitic stainless steel, or austenitic stainless steel. In this example, by selecting an appropriate material, susceptor 11 has a preset Curie temperature higher than the atomization or evaporation temperature of the liquid matrix. Taking the atomization temperature of a certain liquid matrix as 250 °C as an example, the preset Curie temperature may be 280 °C, 290 °C, 300 °C, 310 °C, or 320 °C, etc. That is, the difference between the preset Curie temperature and the atomization temperature of the liquid matrix is 30 °C to 70 °C, preferably 30 °C to 60 °C, and more preferably 40 °C to 60 °C. In a specific example, the difference between the preset Curie temperature and the atomization temperature of the liquid matrix is 50 °C. The preset Curie temperature is 250 °C to 450 °C, preferably 250 °C to 400 °C, and more preferably 200 °C to 350 °C.

[0017] Power supply assembly 20 includes inductor 21, circuit 22, and power supply 23.

[0018] Inductor 21 generates a magnetic field that changes under an alternating current. Inductor 21 includes, but is not limited to, an induction coil.

[0019] Power supply 23 supplies power for operating electronic atomization device 100. Power supply 23 may be a rechargeable battery cell or a disposable battery cell.

[0020] Circuit 22 can control the overall operation of electronic atomization device 100. Circuit 22 not only controls the operations of power supply 23 and inductor 21, but also controls the operations of other elements in electronic atomization device 100.

[0021] In addition to some of the devices shown in FIG. 1, the electronic atomization device 100 may further include other components such as, for example, a liquid transport element. The liquid transport unit may be, for example, cotton fiber, metal fiber, ceramic fiber, glass fiber, porous ceramic, etc. The liquid transport unit may have a shape such as rod-shaped, tubular, or rod-shaped, or may be plate-shaped, sheet-shaped, or a concave mass having a concave cavity on the surface, or an arch shape having an arch structure. It is understandable that this is also possible.

[0022] In other examples, the atomizer 10 and the power supply assembly 20 may be formed separately. For example, the atomizer 10 and the power supply assembly 20 may be removably connected by snap connection, magnetic connection, etc., which is different from the example in FIG. 1 in this regard.

[0023] In order to accurately monitor the operating state of the susceptor 11, FIGS. 2 and 3 show schematic diagrams of the basic components of an embodiment of the circuit 22. The circuit 22 includes a magnetic field generation circuit including a switch circuit 221 and a resonance circuit 222, is a half-bridge circuit composed of transistor switches, including a switch transistor Q1 and a switch transistor Q2, and is used to resonate the resonance circuit 222 by alternately switching on and off to is composed of an inductor 21 (denoted as L in the figure), a first capacitor C1, and a second capacitor C2, and is used to form an alternating current flowing through the inductor L during resonance, so that the inductor L generates an alternating magnetic field to induce the heat generation of the susceptor 11. The resonance circuit 222 includes a driver 223 used to control the switch transistors Q1 and Q2 of the switch circuit 221 to be alternately turned on and off according to the control signal of a controller (not shown).

[0024] As the driver 223, a commonly used switch transistor driver of the FD2204 model number is adopted. It is controlled by PWM by a controller, and according to the pulse width of the PWM, it alternately outputs high level / low level through the third and tenth I / O ports respectively, and drives the conduction time of the switch transistors Q1 and Q2, so as to control the resonance circuit 222 to generate resonance. In other examples, it is also possible for the driver 223 to be integrated into the controller or realized by the controller.

[0025] Regarding the connection, the first capacitor C1 has its first terminal connected to Vbat (Vbat may be the power supply 23 or the power supply with voltage regulation performed on the power supply 23), the second terminal connected to the first terminal of the second capacitor C2, and the second capacitor C2 has its second terminal grounded through the resistor R1.

[0026] The switch transistor Q1 of the switch circuit 221 has its first terminal connected to Vbat, the second terminal connected to the first terminal of the switch transistor Q2, and the switch transistor Q2 has its second terminal grounded through the resistor R1. Of course, the control terminals of the switch transistor Q1 and the switch transistor Q2 are both connected to the driver 223, and are further turned on and off by the drive of the driver 223. The switch transistors Q1 and Q2 include, but are not limited to, IGBTs, MOS transistors, etc.

[0027] The inductor L has its first terminal connected to the second terminal of the switch transistor Q1 and the second terminal connected to the second terminal of the first capacitor C1. Also, regarding the selection of the hardware of the resonance circuit 222, the withstand voltage values of the first capacitor C1 and the second capacitor C2 are much larger than the output voltage value of the power supply 23. For example, in a normal implementation, the output voltage of the adopted power supply 23 is basically about 4V, but the withstand voltage values of the adopted first capacitor C1 and second capacitor C2 are 30 - 80V.

[0028] In the resonant circuit 222 with the above structure, the connection states of the first capacitor C1, the second capacitor C2, and the inductor L change according to the switching states of the switch transistors Q1 and Q2. When the switch transistor Q1 turns on and the switch transistor Q2 turns off, the first capacitor C1 and the inductor L form a closed LC series circuit together, and the second capacitor C2 and the inductor L form an LC series circuit (the circuit starts from Vbat, passes through the inductor L and the second capacitor C2 in sequence, and ends at the ground terminal) whose both ends are connected to Vbat and the ground respectively. When the switch transistor Q1 turns off and the switch transistor Q2 turns on, the formed circuit becomes the reverse state of the above, the first capacitor C1 and the inductor L form an LC series circuit whose both ends are connected to Vbat and the ground respectively, and the second capacitor C2 and the inductor L form a closed LC series circuit together. In each different state, both the first capacitor C1 and the second capacitor C2 can form their respective LC series circuits together with the inductor L.

[0029] In order to accurately detect details such as the oscillation process and period of the resonance circuit 222, as shown in FIG. 4, in implementation, a detection circuit for synchronously detecting changing physical parameters such as current, voltage, and period in the resonance process of the resonance circuit 222 is further included. Specifically, in the embodiment shown in FIG. 4, the synchronous detection circuit includes an operational amplifier U1, and the signal input end for detection is connected to the second end of the inductor L (shown as the JC connection end in the drawing). In any implementation, the reference signal end of the operational amplifier U1 is directly set to 0 to serve as a zero-cross comparator for detecting the time point when the resonance current of the resonance circuit 222 becomes 0. Then, based on this detection result, the controller obtains changing physical parameters such as the current, voltage, and period of the resonance circuit 222 with reference to the zero-cross time point. Note that in some embodiments, the detection circuit is used to sample the current value flowing through the resonance circuit 222, and a high-end current detection method such as providing a sampling resistor between Vbat and the resonance circuit 222 may be used, or a low-end current detection method such as providing a sampling resistor between the resonance circuit 222 and the ground terminal may also be used.

[0030] As shown in FIG. 5, in another implementation, the resonance voltage of the resonance circuit 222 (shown as V11 in the drawing) passes through an RC integration circuit composed of D11, R16, and C13, is divided by the voltage division circuit of R11 and R14, and then is input to the negative input end of the comparator U11. When the voltage at the negative input end of the comparator U11 is higher than the voltage at the positive input end, the comparator U11 outputs a low level (the OUT end in the figure), and otherwise, it outputs a high level. The controller can control the power supply by the power supply 23 according to the level output by the comparator U11. The comparator U11 can be integrated into the controller or independent of the controller.

[0031] In one example, the susceptor 11 is made of a material having a preset Curie temperature. As the temperature of the susceptor 11 gradually approaches the Curie temperature point, the magnetism of the material gradually disappears. At this time, the magnetic coupling coefficient between the inductor L and the susceptor 11 gradually decreases, and the Q value (quality factor) of the magnetic field generation circuit gradually increases. At this time, the electrical characteristic parameters of the magnetic field generation circuit, such as the resonance voltage value and the current value, change accordingly. When the temperature of the susceptor 11 rises and reaches or approaches the Curie temperature point, the resonance voltage value or the current value in the resonance circuit 222 changes suddenly and rises to a very high value. In another example, when the susceptor is not coupled to the resonance circuit in the atomizer, that is, when the power supply assembly is in an unloaded state, the resonance voltage value or the current value is much higher than when the power supply assembly is in a loaded state.

[0032] Therefore, the controller can determine whether there are adverse conditions for the susceptor 11 based on the electrical characteristic parameters of the magnetic field generation circuit and adjust the power supply by the power supply 23. For example, when the susceptor 11 is in an adverse condition, the power supply to the magnetic field generation circuit by the power supply 23 is cut off or limited. Taking Fig. 6 as an example, in Fig. 6, the abscissa represents the temperature of the susceptor 11, and the ordinate represents the resonance voltage peak of the magnetic field generation circuit. When the temperature of the susceptor 11 is T0, since the temperature has not reached the Curie temperature T2, at this time, the magnetic coupling coefficient between the inductor L and the susceptor 11 is large, the Q value of the magnetic field generation circuit is small, and the resonance voltage peak V0 of the magnetic field generation circuit is also small. When the temperature of the susceptor 11 is the Curie temperature T2, the magnetic coupling coefficient between the inductor L and the susceptor 11 is small, the Q value of the magnetic field generation circuit is large, and the resonance voltage peak V2 of the magnetic field generation circuit is also large. Based on such a relationship between the resonance voltage peak and the temperature, the controller can monitor the resonance voltage peak of the magnetic field generation circuit and determine whether there are adverse conditions for the susceptor 11 based on the resonance voltage peak of the magnetic field generation circuit. For example, when it is monitored that the resonance voltage peak V1 of the magnetic field generation circuit reaches or exceeds V2, or the deviation value between the resonance voltage peaks V1 and V2 is smaller than a preset deviation threshold, it can be determined that there are adverse conditions for the susceptor 11, and at this time, the power supply to the magnetic field generation circuit by the power supply 23 can be cut off or limited.

[0033] In other embodiments, in the case of a susceptor made of a certain type of material, during inhalation by an electronic atomization device, the susceptor is used to heat and vaporize a liquid matrix to generate an aerosol. At the initial stage of inhalation, the temperature of the susceptor gradually rises to the atomization temperature of the liquid matrix, during which the resonant voltage or resonant current in the resonant circuit coupled thereto gradually decreases. In the subsequent aerosol generation process, when the liquid matrix is sufficiently supplied and the susceptor is completely penetrated, the temperature of the susceptor does not change drastically, so the resonant voltage or resonant current in the resonant circuit is maintained within a stable range. When the amount of the liquid matrix is insufficient, that is, when the susceptor is not completely penetrated, the temperature of the susceptor rises rapidly but does not reach the Curie temperature. At this time, the resonant voltage or resonant current in the resonant circuit decreases rapidly accordingly, and the controller can determine that the liquid near the susceptor is insufficient by monitoring the decrease in electrical characteristic parameters such as the above resonant voltage. When the liquid matrix is completely depleted, the temperature of the susceptor rises to the Curie temperature point. At this time, the magnetism of the susceptor almost disappears, and the resonant voltage or resonant current in the resonant circuit changes suddenly and rises rapidly. The controller can determine that the liquid near the susceptor is completely depleted by monitoring the sudden increase in electrical characteristic parameters such as the above resonant voltage.

[0034] In another example, due to differences in elements such as the material, size, and volume of the susceptor 11, the magnetic coupling coefficient between different susceptors 11 and the inductor L is different, the Q value of the magnetic field generation circuit is also different, and the corresponding resonant voltage value and current value are also different. Based on such a situation, the controller can monitor the electrical characteristic parameters of the magnetic field generation circuit and determine whether there are unfavorable conditions for the susceptor 11. For example, the atomizer 10 coupled to the power supply assembly 20 is a counterfeit, out-of-specification, or damaged product.

[0035] In another example, before and after the connection of the atomizer 10 to the power supply assembly 20, the Q value of the magnetic field generation circuit is also different, and the corresponding resonance voltage value and current value are also different. Based on such a situation, the controller can monitor the electrical characteristic parameters of the magnetic field generation circuit and determine whether there are any adverse conditions for the susceptor 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.

[0036] In a specific implementation, the adverse conditions of the susceptor 11 include that the liquid matrix transported or provided to the susceptor 11 is insufficient or depleted. Generally, when a certain power or electricity is provided to the resonance circuit and the susceptor 11, the lower the liquid matrix transported or provided to the susceptor 11, the higher the temperature of the susceptor 11.

[0037] In another implementation, the adverse conditions of the susceptor 11 are that the operating parameters of the susceptor 11, such as temperature and voltage, exceed the normal desired values, that is, the operating state of the susceptor 11 exceeds the desired normal range, and there may be safety risks.

[0038] In another variant implementation, the adverse conditions of the susceptor 11 are that the atomizer 10 is not coupled (connected) to the power supply assembly 20, or that there is other foreign matter coupled to the power supply assembly 20. Similar to the above, when the atomizer 10 is not coupled to the power supply assembly 20, the magnetic coupling coefficient between the inductor L and the susceptor 11 is small. When the atomizer 10 is coupled to the power supply assembly 20, the magnetic coupling coefficient between the inductor L and the susceptor 11 becomes large, and the Q (quality factor) value of the corresponding magnetic field generation circuit becomes small. When there is other foreign matter coupled to the power supply assembly 20, if there is magnetic coupling between the foreign matter and the susceptor 11, at a given power, it does not have the same operating parameters or characteristics (e.g., voltage, current) as the standard susceptor 11, and if there is no magnetic coupling between the foreign matter and the susceptor 11, the magnetic coupling coefficient before and after the coupling does not change.

[0039] In another variant implementation, the disadvantageous condition of the susceptor 11 is that the atomizer 10 coupled to the power supply assembly 20 is a counterfeit, off-specification, or damaged product. In the case of a counterfeit, off-specification, or damaged atomizer 10, at a given power, it does not have the same operating parameters or characteristics (e.g., voltage, current) as a standard susceptor 11.

[0040] In a further disadvantageous condition in another implementation, the liquid matrix supplied to the susceptor 11 by the atomizer 10 is undesirable. Specifically, an undesirable liquid matrix may have a different composition from a desirable liquid matrix, and as a result, its viscosity, heat capacity, or boiling point may be different, and thus it may have a temperature, power, or electricity that is higher or lower than expected in atomization by heating.

[0041] In the embodiment shown in FIG. 3, the electrical characteristic parameters of the magnetic field generation circuit include the resonance voltage value of the resonance circuit 222, for example, the resonance voltage peak.

[0042] Based on the resonance voltage value detected by the synchronous detection circuit, In one embodiment, the controller is further configured to determine whether there is a disadvantageous condition for the susceptor 11 based on the comparison result between the resonance voltage value and a preset threshold value. Taking the case where the liquid matrix transported or provided to the susceptor 11 is insufficient or depleted as an example, the resonance voltage value is compared with the preset threshold value. If the resonance voltage value is greater than the preset threshold value, it can be determined that the susceptor 11 is in an overheated state and an empty state has occurred.

[0043] In one embodiment, the controller is further configured to determine whether there are any adverse conditions for the susceptor 11 based on the amount of change or the rate of change of the resonant voltage value of the magnetic field generation circuit within a predetermined time. For example, during the inhalation process, it is calculated whether the amount of change ΔV or the rate of change (ΔV / t1) of the resonant voltage value within a predetermined time t1 exceeds a preset threshold range, and it is determined whether there are any adverse conditions for the operating status of the susceptor 11. The predetermined time may be an empirical value or an experimental value and is not limited herein. The above-mentioned amount of change ΔV or the rate of change (ΔV / t1) of the resonant voltage value may increase or decrease compared to the initial voltage value.

[0044] In one embodiment, the controller is configured to determine whether there are any adverse conditions for the susceptor 11 based on the ratio (ΔV / V0) of the amount of change ΔV of the resonant voltage value of the magnetic field generation circuit to the initial value V0 of the resonant voltage value. In a specific implementation, based on the ratio of ΔV / V0, a threshold suitable for normal operation can be selected, and when the ratio of ΔV / V0 is greater than the threshold, it can be determined that there are adverse conditions.

[0045] In one embodiment, the controller is further configured to determine whether there are any adverse conditions for the susceptor 11 based on the comparison result between the duration until the resonant voltage value of the magnetic field generation circuit reaches a preset threshold from the initial value and a preset time threshold. For example, at a given power, the magnetic field generation circuit including the standard susceptor 11 can reach the preset threshold within the expected period, but for the atomizer 10 that is a counterfeit, out-of-specification, or damaged product, the magnetic field generation circuit can only reach the preset threshold outside the expected period. Thereby, it can be determined that there are adverse conditions for the susceptor 11. The initial value is not limited and may be zero or a value between zero and the resonant voltage peak. In some optional implementations, the above-mentioned expected period may be, for example, 50 ms to 200 ms, or 80 ms to 200 ms, etc. Alternatively, in some preferred implementations, the expected period is 50 ms to 150 ms.

[0046] In one embodiment, the controller is further configured to stop the power supply by the power supply 23 when the number of times when there are adverse conditions in the susceptor 11 is greater than a preset threshold value.

[0047] In the above example, only the LCC series resonance circuit has been described. However, in other examples, an LC series resonance circuit (including, but not limited to, half-bridge series resonance and full-bridge series resonance), an LC parallel resonance circuit, etc. may also be used.

[0048] In the above example, only the resonance voltage of the magnetic field generation circuit has been described as an example. The electrical characteristic parameters of the magnetic field generation circuit may include at least one of a current value, a quality factor Q, a resonance frequency, an inductance value, and electrical characteristic parameters derived based on these parameters. These electrical characteristic parameters may be directly measured or calculated.

[0049] Finally, it should be noted that the above embodiments are only used to explain the technical solution of the present application and do not limit the present application. Under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be realized in any order, and there are many other variations in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can change the technical solutions described in each of the foregoing embodiments or equivalently replace some of the technical features, and the essence of the corresponding technical solutions does not deviate from the scope of the technical solutions of each embodiment of the present application by these changes or replacements.

Claims

1. A liquid storage cavity used for storing a liquid matrix, A power source used for supplying power, A magnetic field generation circuit electrically connected to the power source and configured to generate a changing magnetic field, A susceptor that is penetrated by a changing magnetic field and generates heat, and is configured to heat the liquid matrix to generate an aerosol, An electronic atomization device, comprising: a controller that is electrically connected to the magnetic field generation circuit, monitors electrical characteristic parameters of the magnetic field generation circuit, and determines whether there are adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit.

2. The material of the susceptor has a preset Curie temperature, and the preset Curie temperature is higher than the evaporation temperature of the liquid matrix. The electronic atomization device according to claim 1.

3. The difference between the preset Curie temperature and the evaporation temperature of the liquid matrix is 30°C to 70°C. The electronic atomization device according to claim 2.

4. The adverse conditions of the susceptor include: Whether the liquid matrix transported or provided to the susceptor is insufficient, depleted, or undesirable, Whether the operating parameters of the susceptor exceed the normal desired values, The electronic atomization device includes a power supply assembly and an atomizer removably connected to the power supply assembly. Whether the atomizer connected to the power supply assembly is a counterfeit, off-specification, or damaged product, or whether the atomizer is not connected to the power supply assembly, or whether there are other foreign objects connected to the power supply assembly. The electronic atomization device according to claim 1, characterized by including at least one of the above.

5. The electrical characteristic parameters of the magnetic field generation circuit include: At least one of a current value, a resonance voltage value, a quality factor Q, a resonance frequency, an inductance value, and electrical characteristic parameters derived based on these parameters. The electronic atomization device according to claim 1.

6. The controller is further configured to determine whether there are adverse conditions for the susceptor based on a comparison result between the electrical characteristic parameters of the magnetic field generation circuit and a preset threshold value. The electronic atomization device according to claim 1.

7. The controller is further configured to determine whether there are any adverse conditions for the susceptor based on the amount of change or the rate of change of the electrical characteristic parameters of the magnetic field generation circuit within a predetermined time, according to the electronic atomization device described in claim 1.

8. The controller is configured to determine whether there are any adverse conditions for the susceptor based on the ratio of the amount of change of the electrical characteristic parameters of the magnetic field generation circuit to the initial value thereof, according to the electronic atomization device described in claim 1.

9. The controller is further configured to determine whether there are any adverse conditions for the susceptor based on the comparison result between the duration until the electrical characteristic parameters of the magnetic field generation circuit reach a preset threshold value from the initial value and a preset time threshold, according to the electronic atomization device described in claim 1.

10. The controller is further configured to cut off or limit the power supply from the power source to the magnetic field generation circuit based on the fact that the susceptor is under adverse conditions, according to the electronic atomization device described in claim 1.

11. The controller is further configured to stop the power supply from the power source to the magnetic field generation circuit when the number of times there are adverse conditions for the susceptor is greater than a preset threshold value, according to the electronic atomization device described in claim 10.

12. The magnetic field generation circuit includes a switch circuit and a resonance circuit, and the resonance circuit includes an inductor and a capacitor. The switch circuit is configured to be alternately turned on and off by the drive of a pulse signal so that an alternating current flows through the inductor in the resonance circuit to generate a changing magnetic field, according to the electronic atomization device described in claim 1.

13. It includes a power supply assembly and an atomizer removably connected to the power supply assembly. The power source, the magnetic field generation circuit and the controller are all provided in the power supply assembly, the susceptor is provided in the atomizer, and the atomizer includes a liquid matrix, according to the electronic atomization device described in claim 1.

14. It is used to supply power to the atomizer of an electronic atomization device, and the atomizer includes a liquid storage cavity used to store a liquid matrix and a susceptor used to heat the liquid matrix to generate an aerosol. A power supply assembly, A power supply used to supply power, A magnetic field generation circuit electrically connected to the power supply and configured to generate a changing magnetic field, A controller electrically connected to the magnetic field generation circuit, monitoring the electrical characteristic parameters of the magnetic field generation circuit, and configured to determine whether there are adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit. A power supply assembly characterized by including.

15. A liquid storage cavity used to store a liquid matrix, A power supply used to supply power, A magnetic field generation circuit electrically connected to the power supply and configured to generate a changing magnetic field, A control method for an electronic atomization device including a susceptor that is penetrated by a changing magnetic field and generates heat, and is configured to heat the liquid matrix to generate an aerosol, Monitoring the electrical characteristic parameters of the magnetic field generation circuit, and determining whether there are adverse conditions for the susceptor based on the electrical characteristic parameters of the magnetic field generation circuit. A control method for an electronic atomization device characterized by including.

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