An atomizer frequency searching method, device, medium and atomizer

Abstract

The application provides an atomizer frequency searching method, device, medium and atomizer. The method comprises: outputting PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductive resonance to work; detecting the working current of the atomizing piece and the corresponding resonance frequency and the output voltage of the atomizer power supply and the corresponding resonance frequency; sorting the working current of the atomizing piece and the output voltage of the atomizer power supply to obtain the first resonance frequency corresponding to the maximum working current and the second resonance frequency corresponding to the maximum output voltage; calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency; and determining the optimal resonance frequency of the atomizer based on the sorting result of the working power of each resonance frequency point. The atomizer frequency searching method is not affected by voltage and current fluctuations, guarantees the accuracy of the frequency searching result, and only needs to search for frequency once, thereby improving the working efficiency of frequency searching.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to an atomizer frequency searching method, device, medium and atomizer. BACKGROUND

[0002] The existing atomizer is generally achieved resonance by inductance and capacitance (i.e. atomizing piece) to make the atomizing piece high-frequency oscillation to atomize liquid. However, how to accurately control the inductance and atomizing piece to reach the best resonance point to make the atomizing piece reach the best atomization effect is a problem to be solved. In the prior art, the frequency searching is usually performed by detecting the working voltage or working current of the atomizing piece, which mainly searches for the working frequency corresponding to the maximum working voltage and maximum working current. However, this method is limited by the voltage or current fluctuation. In order to determine the maximum working current or maximum working voltage, the best resonance frequency needs to be determined by repeating the frequency searching multiple times in different detection ranges, which is low in efficiency. SUMMARY

[0003] Therefore, the present application provides an atomizer frequency searching method, device, medium and atomizer to overcome the problem that the frequency searching method of the atomizer in the prior art needs to repeat the frequency searching multiple times to determine the best resonance frequency, which causes long time consumption and low efficiency.

[0004] The present application provides an atomizer frequency searching method, the atomizer comprising an atomizing piece and an inductance, the method comprising:

[0005] outputting PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductance to work in resonance, detecting the working current of the atomizing piece and the corresponding resonance frequency and the output voltage of the atomizer power supply and the corresponding resonance frequency, respectively;

[0006] sorting the working current of the atomizing piece and the output voltage of the atomizer power supply to obtain the first resonance frequency corresponding to the maximum working current and the second resonance frequency corresponding to the maximum output voltage;

[0007] calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency, respectively;

[0008] determining the best resonance frequency of the atomizer based on the sorting result of the working power of each resonance frequency point.

[0009] Optionally, the calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency, respectively, comprises:

[0010] determining whether the first resonant frequency is equal to the second resonant frequency;

[0011] when the first resonant frequency is not equal to the second resonant frequency, obtaining working current and output voltage corresponding to each resonant frequency point between the first resonant frequency and the second resonant frequency respectively;

[0012] calculating working power corresponding to each resonant frequency point based on working current and output voltage corresponding to each resonant frequency point.

[0013] Optionally, when the first resonant frequency is equal to the second resonant frequency, the method further comprises:

[0014] determining the first resonant frequency or the second resonant frequency as the optimal resonant frequency of the atomizer.

[0015] Optionally, the optimal resonant frequency of the atomizer is determined based on a sorting result of working power of each resonant frequency point, comprising:

[0016] obtaining a third resonant frequency corresponding to the maximum working power;

[0017] determining the third resonant frequency as the optimal resonant frequency of the atomizer.

[0018] Optionally, the method further comprises:

[0019] controlling the atomization piece in the atomizer to perform atomization work at the optimal resonant frequency.

[0020] Optionally, the method further comprises:

[0021] monitoring input voltage of the atomizer power supply;

[0022] when the change rate of the input voltage of the atomizer power supply within a set time exceeds a preset threshold, reducing the output voltage of the atomizer power supply.

[0023] Embodiments of the present application also provide an atomizer frequency searching device, the atomizer comprising an atomization piece and an inductor, the device comprising:

[0024] a first processing module configured to output PWM waves of different frequencies to the atomizer to drive the atomization piece and the inductor to work in resonance, and detect working current of the atomization piece and corresponding resonant frequency thereof, and output voltage of the atomizer power supply and corresponding resonant frequency thereof respectively;

[0025] a second processing module configured to sort working current of the atomization piece and output voltage of the atomizer power supply respectively, to obtain a first resonant frequency corresponding to the maximum working current and a second resonant frequency corresponding to the maximum output voltage;

[0026] a third processing module, configured to calculate the working power of each resonant frequency point between the first resonant frequency and the second resonant frequency based on the relationship between the working current and the output voltage and the resonant frequency;

[0027] a fourth processing module, configured to determine the optimal resonant frequency of the atomizer based on the sorting result of the working power of each resonant frequency point.

[0028] The embodiment of the present application further provides an atomizer, which comprises an atomizing piece and an inductor, and further comprises a current detection circuit, a voltage detection circuit and a control unit, wherein,

[0029] the current detection circuit is configured to detect the working current of the atomizing piece and send the working current to the control unit;

[0030] the voltage detection circuit is configured to detect the output voltage of an atomizer power supply and send the output voltage to the control unit;

[0031] the control unit comprises a memory and a processor, the memory and the processor are communicatively connected with each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method provided by the embodiment of the present application.

[0032] Optionally, the current detection circuit comprises a current sampling resistor and a differential amplifier.

[0033] One end of the current sampling resistor is connected with an atomizer power supply and a positive input end of the differential amplifier, and the other end is connected with one end of the inductor and a negative input end of the differential amplifier.

[0034] An output end of the differential amplifier is connected with a current detection end of the control unit.

[0035] The voltage detection circuit comprises a voltage dividing circuit and a voltage follower.

[0036] A first end of the voltage dividing circuit is connected with an atomizer power supply, a second end is grounded, and a third end is connected with a positive input end of the voltage follower.

[0037] An output end of the voltage follower is connected with a voltage acquisition port of the control unit.

[0038] The embodiment of the present application further provides a computer readable storage medium, which stores computer instructions for making a computer execute the method provided by the embodiment of the present application.

[0039] The technical scheme of the present application has the following advantages:

[0040] 1. The embodiment of the present application provides a kind of atomizer frequency searching method and device, different frequency PWM wave is output to atomizer to drive atomizing piece and inductance resonance work, respectively detect the working current of atomizing piece and its corresponding resonance frequency and the output voltage of atomizer power supply and its corresponding resonance frequency;The working current of atomizing piece and the output voltage of atomizer power supply are sorted respectively, to obtain the first resonance frequency corresponding to the maximum working current and the second resonance frequency corresponding to the maximum output voltage;Based on the relationship between working current and output voltage and resonance frequency, the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency is calculated;The best resonance frequency of atomizer is determined based on the sorting result of the working power of each resonance frequency point.The best resonance frequency range is locked by using voltage detection and current detection, and then the best resonance frequency is determined by calculating and comparing the working power of different resonance frequency points in the range, the detection method is not affected by voltage and current fluctuation, guarantee the accuracy of frequency searching result, and the best resonance frequency can be obtained only by once working power calculation and determination, without multiple frequency searching, greatly improve the working efficiency of atomizer frequency searching.

[0041] 2. The atomizer provided by the embodiment of the present application comprises an atomizing piece and an inductor, and further comprises a current detection circuit, a voltage detection circuit and a control unit, wherein the current detection circuit is used to detect the working current of the atomizing piece and send the working current to the control unit; the voltage detection circuit is used to detect the output voltage of the atomizer power supply and send the output voltage to the control unit; the control unit comprises a memory and a processor, which are communicatively connected to each other, and the memory stores computer instructions, and the processor executes the computer instructions to perform the atomizer frequency searching method provided by another embodiment of the present application.The best resonance frequency range is locked by using voltage detection and current detection, and then the best resonance frequency is determined by calculating and comparing the working power of different resonance frequency points in the range, the detection method is not affected by voltage and current fluctuation, guarantee the accuracy of frequency searching result, and the best resonance frequency can be obtained only by once working power calculation and determination, without multiple frequency searching, greatly improve the working efficiency of atomizer frequency searching. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0043] Figure 1 It is a structure schematic diagram of the atomizer in the embodiment of the present application.

[0044] Figure 2 A structure diagram of a voltage detection circuit of the atomizer in the embodiment of the present application is shown in FIG. 1;

[0045] Figure 3 A specific working process diagram of the atomizer in the embodiment of the present application is shown in FIG. 2;

[0046] Figure 4 A flow chart of the frequency searching method of the atomizer in the embodiment of the present application is shown in FIG. 3;

[0047] Figure 5 Another working process diagram of the atomizer in the embodiment of the present application is shown in FIG. 4;

[0048] Figure 6 A structure diagram of the frequency searching device of the atomizer in the embodiment of the present application is shown in FIG. 5;

[0049] Figure 7 A structure diagram of the control unit of the atomizer in the embodiment of the present application is shown in FIG. 6. DETAILED DESCRIPTION

[0050] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements; it can be wireless connection, or wired connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] The technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict.

[0054] The existing atomizer is generally achieved by inductance and capacitance (i.e. atomizing piece) to resonate to make the atomizing piece high-frequency oscillation to atomize the liquid. However, how to accurately control the inductance and the atomizing piece to reach the best resonance point and make the atomizing piece reach the best atomization effect is a problem to be solved. In the prior art, the frequency searching is usually performed by detecting the working voltage or working current of the atomizing piece, which mainly searches for the working frequency corresponding to the maximum working voltage and maximum working current. However, this way is limited by the voltage or current fluctuation. In order to determine the maximum working current or maximum working voltage, the best resonance frequency usually needs to be determined by repeating the frequency searching multiple times in different detection ranges, which is low in frequency searching efficiency.

[0055] Based on the above problems, the embodiment of the application provides an atomizer, as shown in the figure, which comprises an atomizing piece W1, an inductance L1, an atomizer power supply 11, a current detection circuit 12, a voltage detection circuit (not shown in the figure) and a control unit (not shown in the figure), wherein one end of the atomizing piece W1 is connected with a PWM wave output port PWM of the control unit and one end of the inductance L1 respectively, the other end is grounded, and the other end of the inductance L1 is connected with the atomizer power supply 11 through a current sampling resistor R2 in the current detection circuit 12. The output end of the current detection circuit 12 is connected with a current detection end IO_CUR of the control unit. The specific working process of the control unit is described in the following method embodiment, which will not be described here. Figure 1 The specific working process of the control unit is described in the following method embodiment, which will not be described here. Figure 1 Figure 1 Specifically, in an embodiment, the control unit described above can be a single-chip microcomputer, MCU or the like. In the embodiment of the application, the control unit is taken as an MCU for example, which is only taken as an example and is not limited thereto. As shown in the figure, the MCU is connected with the atomizing piece W1 through a first resistor R1 and a switch tube MOS1, and the MCU controls the wave shape of the PWM output by the MOS1 through outputting control signals of different frequencies to control the resonance frequency of the atomizing piece W1.

[0056] Specifically, in an embodiment, as shown in the figure, the current detection circuit 12 described above comprises a current sampling resistor R2 and a differential amplifier U1. One end of the current sampling resistor R2 is connected with the atomizer power supply 11 and the positive input end of the differential amplifier U1, and the other end is connected with one end of the inductance L1 and the negative input end of the differential amplifier U1. The output end of the differential amplifier U1 is connected with the current detection end IO_CUR of the control unit. Figure 1 Specifically, in an embodiment, as shown in the figure, the current detection circuit 12 described above comprises a current sampling resistor R2 and a differential amplifier U1. One end of the current sampling resistor R2 is connected with the atomizer power supply 11 and the positive input end of the differential amplifier U1, and the other end is connected with one end of the inductance L1 and the negative input end of the differential amplifier U1. The output end of the differential amplifier U1 is connected with the current detection end IO_CUR of the control unit.

[0057] Figure 1 Specifically, in an embodiment, as shown in the figure, the current detection circuit 12 described above comprises a current sampling resistor R2 and a differential amplifier U1. One end of the current sampling resistor R2 is connected with the atomizer power supply 11 and the positive input end of the differential amplifier U1, and the other end is connected with one end of the inductance L1 and the negative input end of the differential amplifier U1. The output end of the differential amplifier U1 is connected with the current detection end IO_CUR of the control unit. ​​

[0058] The functions of each component in the current detection circuit and the working principle of the current detection circuit are described below.

[0059] R1: current limiting resistor;

[0060] MOS1: output PWM control resonant frequency of the atomizer piece;

[0061] W1: atomized liquid;

[0062] L1: resonates with the atomizer piece to atomize the liquid;

[0063] R2: current sampling resistor, small resistance and high precision;

[0064] R3, R4: input resistor, R3 and R4 have the same resistance, R3 is connected to the upper end of R2 and the inverting input terminal of U1, and R4 is connected to the lower end of R2 and the non-inverting input terminal of U1;

[0065] R5, R6: feedback resistor, R5 and R6 have the same resistance, R5 is connected to the non-inverting input terminal of U1 and GND, and R6 is connected to R3 and the output terminal of U1;

[0066] U1: amplifies the current signal of R2.

[0067] Working principle:

[0068] The atomizer power supply 11 outputs a voltage Uin, and the PWM port controlled by the MCU outputs PWM waves of different frequencies to drive the switch tube MOS1 to make the inductor L1 and the atomizer piece W1 resonate. The voltage Ur2 of the current sampling resistor R2 of the differential amplifier U1 is amplified, and the output voltage U1 of the differential amplifier U1 is Ur2*R6 / R3. Thus, Ur2 = R3 / R6*U1, and Ir2 = Ur2 / R2, so the output current of the atomizer power supply 11 can be obtained. When the output frequency of the PWM port is different, the output current of the atomizer power supply 11 is also different, i.e., the working current of the atomizer piece W1 is different.

[0069] Specifically, in an embodiment, as shown in Figure 2 The voltage detection circuit includes a voltage divider circuit 21 and a voltage follower U2. The first end of the voltage divider circuit 21 is connected to the atomizer power supply 11, the second end is grounded, and the third end is connected to the positive input terminal of the voltage follower U2. The output terminal of the voltage follower U2 is connected to the voltage collection port IO_VOL of the control unit.

[0070] The functions of each component in the current detection circuit and the working principle of the current detection circuit are described below.

[0071] R7, R8: voltage dividing resistor;

[0072] R9, R10: input resistance, R9 and R10 have the same resistance value;

[0073] U2: voltage follower, used to obtain a follow-up voltage consistent with the output voltage of the voltage dividing circuit.

[0074] Working principle:

[0075] The output voltage Uin of the atomizer power supply 11 is divided by the resistors R7 and R8, and the voltage value Uo is detected by the voltage follower U2, and the output voltage feedback is given to the MCU, and the output voltage of the atomizer power supply 11 is calculated by the formula: Uin*R8 / (R7+R8)=Uo, that is, Uin=Uo(R7+R8) / R8.

[0076] As shown in the schematic diagram, Figure 3 When the atomizer starts to work, the MCU controls the PWM port to output different frequency PWM waves from large to small to drive the MOS tube to control the inductor and the atomizer piece to work in resonance, and the MCU detects the current of the current sampling resistor (i.e. the working current of the atomizer piece) and the corresponding resonance frequency; and detects the output voltage of the atomizer power supply and the corresponding resonance frequency, and the MCU obtains the maximum working current I and the corresponding resonance frequency FI and the maximum output voltage U and the corresponding resonance frequency FL by comparison. When FI=FL, it can be judged that the working power is maximum (P=U*I) at this resonance frequency point, and at this time the MCU controls the PWM port to output the PWM wave at the frequency F=FI, so that the atomizer piece works at the optimal frequency point. If FI≠FL, the power of the two frequency points FI and FL is not the maximum power, because the current-frequency curve and the voltage-frequency curve will have an intersection point, and this point is between the maximum voltage value and the maximum current value, that is, there will be a maximum power (the product of the intersection point is maximum) between the two frequency points FI and FL. The working power of each resonance frequency point between the two resonance frequency points FI and FL is judged, and a maximum power is obtained by comparison, and F takes the resonance frequency corresponding to the maximum working power, and at this time the MCU controls the PWM port to output the PWM wave at the frequency F, so that the atomizer piece works at the optimal frequency point. By this method, only one frequency search is needed to find the optimal resonance frequency, and multiple frequency searches are not needed.

[0077] Through the cooperation of the above-mentioned components, the atomizer provided by the embodiment of the application locks the optimal resonance frequency range by using voltage detection and current detection, and then determines the optimal resonance frequency by calculating and comparing the working power of different resonance frequency points in the range. This detection method is not affected by voltage and current fluctuations, guarantees the accuracy of the frequency search result, and only one working power calculation and judgment is needed to obtain the optimal resonance frequency, without the need for multiple frequency searches, which greatly improves the working efficiency of the atomizer frequency search.

[0078] The embodiment of the present application also provides an atomizer frequency searching method applied to the control unit of the atomizer, as shown in the figure, and the atomizer frequency searching method specifically comprises the following steps: Figure 4

[0079] Step S101: outputting PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductor to work in resonance, respectively detecting the working current of the atomizing piece and the corresponding resonance frequency and the output voltage of the atomizer power supply and the corresponding resonance frequency.

[0080] Step S102: sorting the working current of the atomizing piece and the output voltage of the atomizer power supply respectively to obtain the first resonance frequency corresponding to the maximum working current and the second resonance frequency corresponding to the maximum output voltage.

[0081] Step S103: calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency.

[0082] Step S104: determining the optimal resonance frequency of the atomizer based on the sorting result of the working power of each resonance frequency point.

[0083] Specifically, the third resonance frequency corresponding to the maximum working power is obtained, and the third resonance frequency is determined as the optimal resonance frequency of the atomizer. The working power is the product of the working current and the output voltage. The greater the working power is, the better the atomization effect of the atomizing piece is, and therefore, the frequency searching problem can be converted into the problem of finding the maximum working power, so that the frequency searching can be realized quickly, the frequency searching efficiency is improved, and the frequency searching accuracy can meet the actual working requirements.

[0084] Specifically, in an embodiment, the step S103 specifically comprises the following steps:

[0085] Step S31: judging whether the first resonance frequency is equal to the second resonance frequency.

[0086] Step S32: when the first resonance frequency is not equal to the second resonance frequency, the working current and the output voltage corresponding to each resonance frequency point between the first resonance frequency and the second resonance frequency are obtained respectively.

[0087] Step S33: calculating the working power corresponding to each resonance frequency point based on the working current and the output voltage corresponding to each resonance frequency point.

[0088] ​Specifically, in one embodiment, when the first resonant frequency and the second resonant frequency are equal, the first resonant frequency or the second resonant frequency is determined as the optimal resonant frequency of the atomizer. In practical applications, if the resonant frequency corresponding to the maximum operating current is equal to the resonant frequency corresponding to the maximum output voltage, it indicates that the maximum operating current and the maximum output voltage are exactly the intersection points of the current-frequency change curve and the voltage-frequency change curve. At this point, the corresponding operating power is the maximum, that is, the product at the intersection point of the two intersecting curves is the maximum. Therefore, the resonant frequency corresponding to the maximum operating current or the maximum output voltage can be directly determined as the optimal resonant frequency of the atomizing plate, thereby further improving the frequency-finding efficiency of the atomizer.

[0089] Specifically, in one embodiment, the atomizer frequency-finding method provided by the present invention further includes the following steps:

[0090] Step S105: Control the atomizing plate in the atomizer to perform atomization at the optimal resonant frequency.

[0091] Step S106: Monitor the input voltage of the atomizer power supply.

[0092] Step S107: When the rate of change of the input voltage of the atomizer power supply exceeds a preset threshold within a set time, reduce the output voltage of the atomizer power supply.

[0093] Specifically, since most atomizers can be powered by either an adapter or batteries, when powered by an adapter, the input voltage is stable, and there's no need to consider the battery life. However, when powered by batteries, the battery voltage tends to decrease over time. For example... Figure 5 As shown, after using the above method to find the optimal resonant frequency to drive the MOSFET, the MCU samples the input voltage of the atomizer power module and the battery voltage in real time, and simultaneously samples the current of the current sampling resistor to obtain the power of the atomizer. Based on the battery discharge characteristics (the amount of voltage change over a short period of time; when the battery voltage changes rapidly within a certain period of time, it indicates that the battery is in an unstable state), the output power can be adjusted by adjusting the output voltage of the atomizer power module, i.e., by reducing the output voltage. This achieves dynamic load adjustment, increases the battery's operating time, improves battery utilization, and ensures the working effect of the atomizer.

[0094] By executing the above steps, the frequency searching method of the atomizer provided by the embodiment of the present application can lock the optimal resonant frequency range by using voltage detection and current detection, and then determine the optimal resonant frequency by calculating and comparing the working power of different resonant frequency points in the range, so that the detection method is not affected by voltage and current fluctuations, the accuracy of the frequency searching result is guaranteed, and the optimal resonant frequency can be obtained only by one calculation and judgment of the working power, without multiple frequency searching, so that the working efficiency of the atomizer frequency searching is greatly improved.

[0095] The embodiment of the present application also provides an atomizer frequency searching device, as shown in the figure, which specifically comprises: Figure 6

[0096] The first processing module 101 is configured to output PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductor to work in resonance, and detect the working current of the atomizing piece and the corresponding resonant frequency, and the output voltage of the atomizer power supply and the corresponding resonant frequency. For details, refer to the related description of step S101 in the above method embodiment, which will not be repeated here.

[0097] The second processing module 102 is configured to sort the working current of the atomizing piece and the output voltage of the atomizer power supply respectively, to obtain the first resonant frequency corresponding to the maximum working current and the second resonant frequency corresponding to the maximum output voltage. For details, refer to the related description of step S102 in the above method embodiment, which will not be repeated here.

[0098] The third processing module 103 is configured to calculate the working power of each resonant frequency point between the first resonant frequency and the second resonant frequency based on the relationship between the working current and the output voltage and the resonant frequency. For details, refer to the related description of step S103 in the above method embodiment, which will not be repeated here.

[0099] The fourth processing module 104 is configured to determine the optimal resonant frequency of the atomizer based on the sorting result of the working power of each resonant frequency point. For details, refer to the related description of step S104 in the above method embodiment, which will not be repeated here.

[0100] For further detailed description of each functional module, refer to the related description of the above method embodiment, which will not be repeated here.

[0101] ​Through the synergistic cooperation of the above-mentioned components, the atomizer frequency finding device provided in this embodiment of the invention locks the optimal resonant frequency range by using voltage detection and current detection, and then determines the optimal resonant frequency by calculating and comparing the working power at different resonant frequency points within this range. This detection method is not affected by voltage and current fluctuations, ensuring the accuracy of the frequency finding result. Moreover, the optimal resonant frequency can be obtained by calculating and judging the working power only once, without the need for multiple frequency finding, which greatly improves the working efficiency of atomizer frequency finding.

[0102] This invention provides a control unit for an atomizer, such as... Figure 7 As shown, the control unit may include a processor 901 and a memory 902, wherein the processor 901 and the memory 902 may be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0103] Processor 901 can be a Central Processing Unit (CPU). Processor 901 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0104] The memory 902, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the methods in the method embodiments of the present invention. The processor 901 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions, and modules stored in the memory 902, thereby implementing the methods in the above method embodiments.

[0105] The memory 902 can include a program storage area and a data storage area, where the program storage area can store application programs required by the operation of the device, at least one function, and the data storage area can store data created by the processor 901 and the like. In addition, the memory 902 can include a high-speed random access memory, and can further include a non-transitory memory such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid state memory device. In some embodiments, the memory 902 can optionally include a memory disposed remotely from the processor 901, which can be connected to the processor 901 through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0106] One or more modules are stored in the memory 902, which, when executed by the processor 901, perform the methods in the above method embodiments.

[0107] The above control unit can be understood in detail by referring to the corresponding description and effects of the above method embodiments, and will not be described here.

[0108] Those skilled in the art can understand that all or part of the processes in the above embodiments can be completed by a computer program instructing related hardware, and the implemented program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the above embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid state drive (SSD), etc. The storage medium can also include a combination of the above types of memories.

[0109] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A method of frequency searching for an atomizer, characterized in that, The atomizer comprises an atomizing piece and an inductor, and the method comprises: outputting PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductor to work in resonance, respectively detecting the working current of the atomizing piece and the corresponding resonance frequency and the output voltage of the atomizer power supply and the corresponding resonance frequency; respectively sorting the working current of the atomizing piece and the output voltage of the atomizer power supply to obtain a first resonance frequency corresponding to the maximum working current and a second resonance frequency corresponding to the maximum output voltage; based on the relationship between the working current and the output voltage and the resonance frequency, calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency; based on the sorting result of the working power of each resonance frequency point, determining the optimal resonance frequency of the atomizer; the method based on the relationship between the working current and the output voltage and the resonance frequency, calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency, comprises: respectively acquiring the working current and the output voltage corresponding to each resonance frequency point between the first resonance frequency and the second resonance frequency; based on the working current and the output voltage corresponding to each resonance frequency point, calculating the working power corresponding to each resonance frequency point.

2. The method of claim 1, wherein, the method based on the relationship between the working current and the output voltage and the resonance frequency, calculating the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency, further comprises: determining whether the first resonance frequency is equal to the second resonance frequency; when the first resonance frequency is not equal to the second resonance frequency, performing the step of respectively acquiring the working current and the output voltage corresponding to each resonance frequency point between the first resonance frequency and the second resonance frequency.

3. The method of claim 2, wherein, when the first resonance frequency is equal to the second resonance frequency, the method further comprises: determining the first resonance frequency or the second resonance frequency as the optimal resonance frequency of the atomizer.

4. The method of claim 1, wherein, the method based on the sorting result of the working power of each resonance frequency point, determining the optimal resonance frequency of the atomizer, comprises: acquiring a third resonance frequency corresponding to the maximum working power; determining the third resonance frequency as the optimal resonance frequency of the atomizer.

5. The method of claim 1, wherein, further comprising: controlling the atomizing piece in the atomizer to work in atomization at the optimal resonance frequency.

6. The method of claim 5, wherein, further comprising: monitoring the input voltage of the atomizer power supply; when the change rate of the input voltage of the atomizer power supply within a set time is monitored to exceed a preset threshold, reducing the output voltage of the atomizer power supply.

7. A frequency finder for an atomizer, characterized by The atomizer comprises an atomizing piece and an inductor, and the device comprises: a first processing module for outputting PWM waves with different frequencies to the atomizer to drive the atomizing piece and the inductor to work in resonance, respectively detecting the working current of the atomizing piece and the corresponding resonance frequency and the output voltage of the atomizer power supply and the corresponding resonance frequency; a second processing module for respectively sorting the working current of the atomizing piece and the output voltage of the atomizer power supply to obtain a first resonance frequency corresponding to the maximum working current and a second resonance frequency corresponding to the maximum output voltage; The third processing module is configured to calculate the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency; the calculation of the working power of each resonance frequency point between the first resonance frequency and the second resonance frequency based on the relationship between the working current and the output voltage and the resonance frequency comprises: obtaining the working current and the output voltage corresponding to each resonance frequency point between the first resonance frequency and the second resonance frequency respectively; and calculating the working power corresponding to each resonance frequency point based on the working current and the output voltage corresponding to each resonance frequency point; The fourth processing module is configured to determine the optimal resonance frequency of the atomizer based on the sorting result of the working power of each resonance frequency point.

8. An atomizer comprising an atomizing sheet and an inductor, characterized by, The atomizer further comprises a current detection circuit, a voltage detection circuit and a control unit, wherein The current detection circuit is configured to detect the working current of the atomizing piece and send the working current to the control unit; The voltage detection circuit is configured to detect the output voltage of the atomizer power supply and send the output voltage to the control unit; The control unit comprises a memory and a processor, which are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method of any one of claims 1-6.

9. The atomizer of claim 8, wherein The current detection circuit comprises a current sampling resistor and a differential amplifier; One end of the current sampling resistor is connected to the atomizer power supply and the positive input end of the differential amplifier, and the other end is connected to one end of the inductor and the negative input end of the differential amplifier; The output end of the differential amplifier is connected to the current detection end of the control unit; The voltage detection circuit comprises a voltage dividing circuit and a voltage follower; The first end of the voltage dividing circuit is connected to the atomizer power supply, the second end is grounded, and the third end is connected to the positive input end of the voltage follower; The output end of the voltage follower is connected to the voltage acquisition port of the control unit.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for causing a computer to execute the method of any one of claims 1-6.

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