Drive control method and device, electromagnetic heating device and storage medium

Abstract

The application discloses a driving control method and device, an electromagnetic heating device and a storage medium. The method is applied to an electromagnetic heating device, and the electromagnetic heating device comprises a first heating coil and a second heating coil. The method comprises the following steps: when the first heating coil and the second heating coil are in a working mode at the same time, the first heating coil and the second heating coil are driven to work alternately. The frequency difference between the resonant frequencies of the first heating coil and the second heating coil when the first heating coil and the second heating coil are alternately switched is less than or equal to a preset frequency threshold, so that the noise generated when the first heating coil and the second heating coil are alternately switched can be effectively reduced while ensuring that each heating coil can normally work, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more specifically, to a drive control method, device, electromagnetic heating equipment, and storage medium. Background Technology

[0002] Electromagnetic heating devices are widely used in people's lives due to their ease of use. These devices typically contain a heating coil, which is driven by a high-frequency voltage to resonate, generating a magnetic field. This magnetic field induces eddy currents in the pot, causing it to heat up.

[0003] To meet diverse cooking needs, electromagnetic heating devices can be equipped with multiple heating coils. However, when multiple heating coils operate simultaneously, they are prone to mutual interference, affecting the user experience. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a drive control method, device, electromagnetic heating equipment and storage medium.

[0005] In a first aspect, embodiments of this application provide a driving control method applied to an electromagnetic heating device, the electromagnetic heating device including a first heating coil and a second heating coil, the method including: when the first heating coil and the second heating coil are simultaneously in working mode, driving the first heating coil and the second heating coil to work alternately; wherein, during the alternation switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold.

[0006] Secondly, this application also provides a drive control device for use in an electromagnetic heating device, which includes a first heating coil and a second heating coil. The device includes a drive module; the drive module is used to drive the first heating coil and the second heating coil to work alternately when the first heating coil and the second heating coil are simultaneously in working mode; wherein, when working alternately, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold.

[0007] Thirdly, embodiments of this application also provide an electromagnetic heating device, which includes one or more processors, a memory, and one or more application programs; wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the above-described drive control method.

[0008] Fourthly, embodiments of this application also provide a computer-readable storage medium storing program code, wherein the above-described drive control method is executed when the program code is run by a processor.

[0009] The technical solution provided by this invention is applied to an electromagnetic heating device, which includes a first heating coil and a second heating coil. The method includes: when the first heating coil and the second heating coil are both in working mode, driving the first heating coil and the second heating coil to work alternately; wherein, during the alternation switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold, thereby ensuring that each heating coil can work normally while effectively reducing the noise generated during the alternation switching and improving the user experience. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments and drawings obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0011] Figure 1 A schematic diagram of an application environment involved in an embodiment of this application is shown.

[0012] Figure 2 A schematic diagram of another application environment involved in the embodiments of this application is shown.

[0013] Figure 3 A flowchart illustrating a drive control method according to an embodiment of this application is shown.

[0014] Figure 4 A schematic diagram of a resonant waveform of the first heating coil and the second heating coil provided in an embodiment of this application is shown.

[0015] Figure 5 A schematic diagram of another resonant waveform of the first heating coil and the second heating coil provided in the embodiments of this application is shown.

[0016] Figure 6 A schematic diagram of the structure of a drive control device provided in an embodiment of this application is shown.

[0017] Figure 7 A schematic diagram of the structure of an electromagnetic heating device provided in an embodiment of this application is shown.

[0018] Figure 8 This illustration shows a schematic diagram of the structure of a computer-readable storage medium provided in an embodiment of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0020] Electromagnetic heating devices are widely used in people's lives due to their ease of use. These devices typically contain a heating coil, which is driven by a high-frequency voltage to resonate, generating a magnetic field. This magnetic field induces eddy currents in the pot, causing it to heat up.

[0021] To meet diverse cooking needs, electromagnetic heating devices can be equipped with multiple heating coils. However, the inventors of this application discovered in their research that when multiple heating coils work simultaneously, if synchronous heating at the same frequency is used, the power distribution of the heating coils will be limited; if heating at different frequencies is used, the magnetic fields between different heating coils will interfere with each other, generating high-frequency noise; and if multiple heating coils work in a time-sharing manner, noise problems will arise during time-sharing switching, seriously affecting the user experience.

[0022] To address the aforementioned issues, the inventors have proposed a driving control method, apparatus, electromagnetic heating device, and storage medium as described in this application. These are applied to an electromagnetic heating device, which includes a first heating coil and a second heating coil. The method comprises: when both the first and second heating coils are in operating mode simultaneously, driving the first and second heating coils to work alternately; wherein, during alternating operation, the frequency difference between the resonant frequencies of the first and second heating coils is less than or equal to a preset frequency threshold, thereby ensuring that each heating coil can operate normally while effectively reducing noise generated during alternating operation and improving the user experience.

[0023] The application environment of the drive control method provided in this invention will be described below.

[0024] Please see Figure 1 , Figure 1 This is a schematic diagram of an application scenario of the drive control method provided in an embodiment of the present invention, such as... Figure 1 As shown, the electromagnetic heating device 100 includes: a device body 110 and a first heating coil 120 and a second heating coil 130 disposed on the device body 110.

[0025] In some embodiments, the first heating coil 120 may be disposed in the blank area at the center of the second heating coil 130, so that the first heating coil 120 and the second heating coil 130 can heat different areas of the same cooking appliance disposed on the first heating coil 120 and the second heating coil 130.

[0026] Please see Figure 2 , Figure 2 This is a schematic diagram of an application scenario of the drive control method provided in an embodiment of the present invention, such as... Figure 2 As shown, the electromagnetic heating device 200 includes: a device body 210 and a first heating coil 220 and a second heating coil 230 disposed on the device body 210.

[0027] In some embodiments, the first heating coil 220 and the second heating coil 230 are spaced apart, so that they can be heated separately for different cooking appliances.

[0028] It should be noted that the above are merely exemplary application scenarios, and the methods provided in this application embodiment can also be applied to other application scenarios, which are not limited here.

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Please see Figure 3 This application provides a drive control method that can be applied to electromagnetic heating devices, such as the electromagnetic heating device in the above-mentioned application scenario. The electromagnetic heating device includes a first heating coil and a second heating coil. Figure 3 As shown, the method includes step 310.

[0031] Step 310: When the first heating coil and the second heating coil are both in working mode, drive the first heating coil and the second heating coil to work alternately.

[0032] In the embodiments of this application, when the first heating coil and the second heating coil are in working mode at the same time, a time-sharing working method is adopted to drive the first heating coil and the second heating coil to work alternately.

[0033] The first and second heating coils operate according to corresponding control requirements during their respective operating periods to meet user needs. For example, the control temperature and operating power of the first heating coil are matched to the corresponding control requirements. It is understood that the user needs can be met by adjusting the resonant parameters, such as the resonant frequency, of the first and second heating coils during their respective operating periods. In other words, the resonant frequency of the first and second heating coils is adjusted according to control requirements during their respective operating periods. For example, the resonant frequency of the first heating coil may decrease, increase, or exhibit other variations during its corresponding operating period; the specific settings can be configured according to actual control requirements, and this application does not impose any limitations on this.

[0034] When switching between heating coils, if the resonant parameters of the first and second heating coils differ significantly before and after the switch, noise will be generated during the switching process. To reduce this noise, in this embodiment, the frequency difference between the resonant frequencies of the first and second heating coils during the switching process is controlled to be less than or equal to a preset frequency threshold, thereby effectively reducing noise generation.

[0035] It is understandable that the smaller the frequency difference between the resonant frequencies of the first heating coil and the second heating coil during alternating switching, the less noise is generated.

[0036] Preferably, the frequency difference between the resonant frequency of the first heating coil and the resonant frequency of the second heating coil can be controlled to be zero during alternating switching, that is, the resonant frequency of the first heating coil and the resonant frequency of the second heating coil are equal during alternating switching.

[0037] In some implementations, the preset frequency threshold is 3kHz, meaning that the frequency difference between the resonant frequencies of the first heating coil and the second heating coil during alternating switching is less than or equal to 3kHz.

[0038] In some implementations, the steps drive the first heating coil and the second heating coil to work alternately; including the following steps.

[0039] (1) During the first heating cycle corresponding to the first heating coil, the first heating coil is driven to work at the first working resonant frequency with the average resonant frequency as the first working resonant frequency.

[0040] (2) During the second heating cycle corresponding to the second heating coil, the second heating coil is driven to work at the average resonant frequency as the second working resonant frequency.

[0041] In the embodiments of this application, the first heating coil and the second heating coil operate within their respective heating cycles.

[0042] The heating cycle corresponding to the first heating coil is the first heating cycle, and the heating cycle corresponding to the second heating coil is the second heating cycle. The first heating cycle and the second heating cycle are set alternately.

[0043] To meet the control requirements of the first heating coil, within the first heating cycle corresponding to the first heating coil, the difference between the average resonant frequency of the first heating coil and the first target resonant frequency is less than or equal to the first target threshold. That is, the first operating resonant frequency is less than or equal to the first target resonant frequency.

[0044] The first target resonant frequency is the resonant frequency of the first heating coil when it operates at the corresponding target heating power. The target heating power is the heating power corresponding to the control command of the first heating coil. For example, the user can control the heating power of the first heating coil to 1000W by adjusting the control panel of the electromagnetic heating device.

[0045] Similarly, to meet the control requirements of the second heating coil, within the second heating cycle corresponding to the second heating coil, the difference between the average resonant frequency of the second heating coil and the second target resonant frequency is less than or equal to the second target threshold. That is, the second operating resonant frequency is less than or equal to the second target resonant frequency.

[0046] Wherein, the second target resonant frequency is the resonant frequency of the second heating coil when it operates at the corresponding target heating power. The target heating power is the heating power corresponding to the control command of the second heating coil.

[0047] In some implementations, to meet the control requirements of the first heating coil and reduce noise generated during switching, the first heating cycle may include multiple sequentially arranged first sub-cycles. Each first sub-cycle has a corresponding first adjustment resonant frequency. By adjusting the first adjustment resonant frequencies corresponding to the multiple first sub-cycles, the control requirements of the first heating coil are met while reducing noise generated during switching. For example, when switching from the second heating coil to the first heating coil, to reduce noise, the first adjustment resonant frequency corresponding to the first first sub-cycle of the first heating cycle can be adjusted. Simultaneously, to ensure that the average resonant frequency of the first heating cycle meets the control requirements, the other first sub-cycles of the first heating cycle can be adjusted to ensure that the average resonant frequency of the first heating cycle meets the control requirements.

[0048] In some embodiments, the step of driving the first heating coil to operate at an average resonant frequency as a first operating resonant frequency within a first heating cycle corresponding to the first heating coil includes: driving the first heating coil to operate at a first adjusted resonant frequency corresponding to each first sub-cycle within each first sub-cycle.

[0049] In some implementations, in order to meet the control requirements of the second heating coil and to reduce the noise generated during alternating switching, the second heating cycle may include multiple second sub-cycles arranged in sequence, each second sub-cycle being provided with a corresponding second adjustment resonant frequency.

[0050] In some embodiments, the step of driving the second heating coil to operate at the second working resonant frequency with the average resonant frequency during the second heating cycle corresponding to the second heating coil includes: driving the second heating coil to operate at the second adjusted resonant frequency corresponding to each second sub-cycle during each second sub-cycle.

[0051] In some implementations, the first sub-cycle of the first heating cycle is arranged adjacent to the last sub-cycle of the previous second heating cycle.

[0052] In some implementations, the last first sub-cycle of the first heating cycle is positioned adjacent to the first second sub-cycle of the next second heating cycle.

[0053] In the embodiments of this application, the frequency difference between the first adjusted resonant frequency corresponding to the first sub-cycle and the second adjusted resonant frequency corresponding to the adjacent second sub-cycle is less than or equal to a preset frequency threshold, thereby reducing the noise generated during alternating switching.

[0054] In other embodiments, the sum of the number of first sub-cycles included in a first heating cycle and the number of second sub-cycles included in a second heating cycle is greater than or equal to four.

[0055] In some implementations, the first sub-cycle is less than or equal to a preset cycle; the second sub-cycle is less than or equal to a preset cycle; and the preset cycle is half the mains cycle. For example, commonly used mains power is sinusoidal alternating current, and the cycle of sinusoidal alternating current is 0.02s. That is, the preset cycle is 0.01s; the first sub-cycle is less than or equal to 0.02s; and the second sub-cycle is less than or equal to 0.02s.

[0056] In some implementations, the first adjustment frequency corresponding to each first sub-cycle is a fixed value; the second adjustment frequency corresponding to each second sub-cycle is a fixed value.

[0057] Within each first sub-cycle, the first heating coil operates at a fixed first adjustment frequency. The values ​​of the first adjustment resonant frequencies corresponding to multiple first sub-cycles change from their alternating values ​​towards a first target resonant frequency. This causes the resonant frequency of the first heating coil to gradually approach the first target resonant frequency from its alternating resonant frequency, thus ensuring that the average resonant frequency of the first heating coil meets the control requirements.

[0058] For example, the first heating cycle includes two first sub-cycles. The first adjustment frequency of the first first sub-cycle is 0.3, and the first target resonant frequency of the first heating coil is 0.5. Then the first adjustment frequency of the other first sub-cycle can be set between 0.3 and 0.5, so that the value of the first adjustment resonant frequency changes towards the first target resonant frequency.

[0059] For example, the first heating cycle includes two first sub-cycles. The first adjustment frequency of the first first sub-cycle is 0.5, and the first target resonant frequency of the first heating coil is 0.1. Then the first adjustment frequency of the other first sub-cycle can be set between 0.1 and 0.4, so that the value of the first adjustment resonant frequency changes towards the first target resonant frequency.

[0060] Alternatively, in other embodiments, within each second sub-cycle, the second heating coil operates at a fixed second adjustment frequency. The values ​​of the second adjustment resonant frequencies corresponding to multiple second sub-cycles change from their alternating values ​​towards a second target resonant frequency, thereby causing the resonant frequency of the second heating coil to gradually approach the second target resonant frequency from the alternating resonant frequency, thus ensuring that the average resonant frequency of the second heating coil meets the control requirements.

[0061] like Figure 4 As shown, Figure 4 A schematic diagram of a resonant waveform of the first and second heating coils provided in an embodiment of this application is shown. Figure 4 In the first heating cycle, there are three first sub-cycles: ta, tb, and tc. The second heating cycle consists of three second sub-cycles: td, te, and tf.

[0062] Among them, the first adjusted resonant frequency of the first sub-cycle ta is a fixed value, namely f1 = 1 / t1.

[0063] The first adjusted resonant frequency of the first sub-cycle tb is a fixed value, namely f2 = 1 / t2.

[0064] The first adjusted resonant frequency of the first sub-cycle tc is a fixed value, namely f3 = 1 / t3.

[0065] The second resonant frequency of the second sub-period td is a fixed value, namely f1 = 1 / t1.

[0066] The second adjusted resonant frequency of the second sub-cycle te is a fixed value, namely f3 = 1 / t3.

[0067] The second resonant frequency of the second sub-period tf is a fixed value, namely f3 = 1 / t3.

[0068] The frequency difference between the first adjusted resonant frequency of the first sub-cycle tc and the second adjusted resonant frequency of the second sub-cycle td is less than or equal to a preset frequency threshold. That is, Δf = |f2 - f1| = |1 / t2 - 1 / t1| ≤ 3kHz.

[0069] In other embodiments, the first adjustment frequency corresponding to each first sub-cycle is a variable value. That is, within each first sub-cycle, the value of the first adjustment frequency corresponding to the first heating coil changes. The second adjustment frequency corresponding to each second sub-cycle is either a variable value or a fixed value. That is, within each second sub-cycle, the value of the second adjustment frequency corresponding to the second heating coil can be either a fixed value or a variable value.

[0070] In the embodiments of this application, the frequency difference between the first adjusted resonant frequencies corresponding to adjacent first sub-cycles is less than or equal to the cycle frequency threshold.

[0071] In some implementations, the frequency difference between the last value of the first adjustment frequency corresponding to the first sub-cycle and the first value of the first adjustment frequency corresponding to the next first sub-cycle is less than or equal to the cycle frequency threshold.

[0072] In some implementations, when the value of the first adjustment frequency corresponding to the first sub-cycle is switched, the difference between adjacent values ​​is less than or equal to the cycle frequency threshold to prevent frequency difference noise from being generated.

[0073] Similarly, when the second adjustment frequency corresponding to the second sub-cycle is a variable value, when the value of the second adjustment frequency corresponding to the second sub-cycle is switched, the difference between adjacent values ​​is less than or equal to the cycle frequency threshold to prevent the generation of frequency difference noise.

[0074] Optionally, the periodic frequency threshold is 0.3 kHz.

[0075] like Figure 5 As shown, Figure 5 A schematic diagram of another resonant waveform of the first and second heating coils provided in an embodiment of this application is shown. Figure 5 In the first heating cycle, there are four first sub-cycles: ta, tb, tc, and td. The second heating cycle consists of two second sub-cycles: te and tf.

[0076] Among them, the first adjusted resonant frequency of the first sub-period ta is a variable value, that is, within the first sub-period ta, the first adjusted resonant frequency f1 changes sequentially from 1 / t1~1 / t2~1 / t3~1 / t4~1 / t3~1 / t2~1 / t1.

[0077] The first adjusted resonant frequency of the first sub-period tb is a variable value, that is, the first adjusted resonant frequency f2 changes sequentially from 1 / t5~1 / t6~1 / t7~1 / t8~1 / t7~1 / t6~1 / t5.

[0078] The first adjusted resonant frequency of the first sub-cycle tc is a variable value, that is, the first adjusted resonant frequency changes sequentially from 1 / t5~1 / t6~1 / t7~1 / t8~1 / t7~1 / t6~1 / t5.

[0079] The first adjusted resonant frequency of the first sub-period td is a variable value, that is, the first adjusted resonant frequency f4 changes sequentially from 1 / t1~1 / t2~1 / t3~1 / t4~1 / t3~1 / t2~1 / t1.

[0080] The second adjustment resonant frequency of the second sub-period te is a variable value, that is, the second adjustment frequency f5 changes sequentially from 1 / t9~1 / t10~1 / t11~1 / t12~1 / t11~1 / t10~1 / t9.

[0081] The second adjustment resonant frequency of the second sub-period tf is a variable value, that is, the second adjustment frequency f6 changes sequentially from 1 / t9~1 / t10~1 / t11~1 / t12~1 / t11~1 / t10~1 / t9.

[0082] The frequency difference between the first adjusted resonant frequency of the first sub-cycle tc and the second adjusted resonant frequency of the second sub-cycle td is less than or equal to a preset frequency threshold. That is, Δf = |f2 - f1| = |1 / t2 - 1 / t1| ≤ 3kHz.

[0083] During the alternating switching, the resonant frequency of the first heating coil is 1 / t1, and the resonant frequency of the second heating coil is 1 / t9. The frequency difference between the two is less than or equal to a preset frequency threshold.

[0084] The frequency difference between the first adjustment frequencies corresponding to adjacent first sub-cycles is less than or equal to the cycle frequency threshold. For example, if the first sub-cycle ta and the first sub-cycle tb are adjacent, the first adjustment frequency of the first sub-cycle ta is 1 / t1, and the first adjustment frequency of the first sub-cycle tb is 1 / t5. The frequency difference between the two is less than or equal to the cycle frequency threshold.

[0085] Similarly, the frequency difference between the second adjustment frequencies corresponding to adjacent second sub-cycles is less than or equal to the cycle frequency threshold.

[0086] Within the same first sub-cycle, the difference between adjacent values ​​of the first adjustment frequency is less than or equal to the cycle frequency threshold. For example, within the first sub-cycle, if the value of the first adjustment frequency switches from 1 / t1 to 1 / t2, the difference between the two is less than or equal to the cycle frequency threshold.

[0087] Similarly, within the same second sub-cycle, the difference between adjacent values ​​of the second adjustment frequency is less than or equal to the cycle frequency threshold.

[0088] In some implementations, the first heating cycle is a positive integer multiple of the second preset cycle, and the second heating cycle is a positive integer multiple of the second preset cycle, which is half of the mains power cycle. For example, commonly used mains power is sinusoidal alternating current, and the period of sinusoidal alternating current is 0.02s. That is, the preset cycle is 0.01s; the first sub-cycle is less than or equal to 0.02s; and the second sub-cycle is less than or equal to 0.02s.

[0089] Please see Figure 6 This application provides a drive control device 400, which is applied to an electromagnetic heating device. The electromagnetic heating device includes a first heating coil and a second heating coil. The device includes a drive module 410.

[0090] The driving module is used to drive the first heating coil and the second heating coil to work alternately when the first heating coil and the second heating coil are in working mode at the same time;

[0091] During the alternating switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold.

[0092] It should be noted that, for the device-type embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and relevant details can be found in the descriptions of the method embodiments. Any processing method described in the method embodiments can be implemented in the device embodiments through corresponding processing modules, and will not be elaborated upon further in the device embodiments.

[0093] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0094] Please see Figure 7 Based on the above-described drive control method, this application embodiment also provides an electromagnetic heating device 500 that can execute the aforementioned drive control method.

[0095] In embodiments of this application, the electromagnetic heating device 500 includes one or more processors 510, a memory 520, and one or more application programs. The one or more application programs are stored in the memory 520, which stores programs capable of executing the contents of the foregoing embodiments, and the processor 510 can execute the programs stored in the memory.

[0096] The processor 510 may include one or more cores for data processing and message matrix units. The processor 510 connects to various parts of the electronic device using various interfaces and lines, and performs various functions of the cooking device and processes data by running or executing instructions, programs, code sets, or instruction sets stored in memory, and by calling data stored in memory. Optionally, the processor 510 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 510 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), and a modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the displayed content; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 510 and may be implemented separately through a communication chip.

[0097] The memory 520 may include random access memory (RAM) or read-only memory (ROM). The memory 520 can be used to store instructions, programs, code, code sets, or instruction sets. The memory may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing the various method embodiments described below, etc. The data storage area may also store data created by the terminal during use.

[0098] Please refer to Figure 8 This diagram illustrates a structural block diagram of a computer-readable storage medium 600 provided in an embodiment of this application. The computer-readable storage medium 600 stores program code 610, which can be called by a processor to execute the drive control method described in the above method embodiments.

[0099] The computer-readable storage medium 600 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium includes a non-transitory computer-readable storage medium. The computer-readable storage medium 600 has storage space for program code that performs any of the method steps of the above-described drive control method. This program code 610 can be read from or written to one or more computer program products. The program code may, for example, be compressed in a suitable form.

[0100] In summary, the present application provides a driving control method, device, electromagnetic heating equipment, and storage medium. The method is applied to an electromagnetic heating equipment, which includes a first heating coil and a second heating coil. The method includes: when the first heating coil and the second heating coil are simultaneously in working mode, driving the first heating coil and the second heating coil to work alternately; wherein, during the alternation switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold, thereby ensuring that each heating coil can work normally while effectively reducing the noise generated during the alternation switching and improving the user experience.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A drive control method, characterized in that, The method is applied to an electromagnetic heating device, the electromagnetic heating device including a first heating coil and a second heating coil, and includes: When both the first heating coil and the second heating coil are in operating mode, during the first heating cycle corresponding to the first heating coil, the first heating coil is driven to operate at a first operating resonant frequency with an average resonant frequency; wherein the difference between the first operating resonant frequency and the first target resonant frequency is less than or equal to a first target threshold; the first target resonant frequency is the resonant frequency at which the first heating coil operates at the corresponding target heating power. During the second heating cycle corresponding to the second heating coil, the second heating coil is driven to operate at a second operating resonant frequency with an average resonant frequency; wherein the difference between the second operating resonant frequency and the second target resonant frequency is less than or equal to a second target threshold; the second target resonant frequency is the resonant frequency at which the second heating coil operates at the corresponding target heating power. Wherein, during the alternating switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold; The first heating cycle and the second heating cycle are alternately set; the first heating cycle includes a plurality of first sub-cycles set in sequence; the second heating cycle includes a plurality of second sub-cycles set in sequence. The step of driving the first heating coil to operate at an average resonant frequency of the first working resonant frequency within the first heating cycle corresponding to the first heating coil includes: Within each first sub-cycle, the first heating coil is driven to operate at the first adjusted resonant frequency corresponding to each first sub-cycle. The step of driving the second heating coil to operate at an average resonant frequency of the second working resonant frequency during the second heating cycle corresponding to the second heating coil includes: Within each second sub-cycle, the second heating coil is driven to operate at the second adjusted resonant frequency corresponding to each second sub-cycle; Wherein, the frequency difference between the first adjusted resonant frequency corresponding to the first sub-cycle and the second adjusted resonant frequency corresponding to the adjacent second sub-cycle is less than or equal to the preset frequency threshold.

2. The method according to claim 1, characterized in that, The first sub-cycle is less than or equal to the first preset cycle; the second sub-cycle is less than or equal to the first preset cycle; the first preset cycle is half of the mains cycle.

3. The method according to claim 1, characterized in that, The first adjusted resonant frequency corresponding to each of the first sub-cycles is a fixed value; the second adjusted resonant frequency corresponding to each of the second sub-cycles is a fixed value; The values ​​of the first adjusted resonant frequencies corresponding to the plurality of first sub-cycles change towards the first target resonant frequency from the values ​​during alternating switching. Alternatively, the value of the second adjusted resonant frequency corresponding to the plurality of second sub-cycles changes towards the second target resonant frequency from the value during alternating switching.

4. The method according to claim 1, characterized in that, The first adjusted resonant frequency corresponding to each of the first sub-cycles is a variable value; the second adjusted resonant frequency corresponding to each of the second sub-cycles is either a variable value or a fixed value. Wherein, the frequency difference between the first adjusted resonant frequencies corresponding to adjacent first sub-cycles is less than or equal to the cycle frequency threshold.

5. The method according to any one of claims 2 to 4, characterized in that, The first heating cycle is a positive integer multiple of the second preset cycle, the second heating cycle is a positive integer multiple of the second preset cycle, and the second preset cycle is half of the mains power cycle.

6. A drive control device, characterized in that, Applied to electromagnetic heating equipment, the electromagnetic heating equipment includes a first heating coil and a second heating coil, the device comprising: A driving module is configured to, when both the first heating coil and the second heating coil are in operating mode, drive the first heating coil to operate at a first operating resonant frequency (average resonant frequency) within a first heating cycle corresponding to the first heating coil; wherein the difference between the first operating resonant frequency and a first target resonant frequency is less than or equal to a first target threshold; the first target resonant frequency is the resonant frequency at which the first heating coil operates at a corresponding target heating power; and drive the second heating coil to operate at a second operating resonant frequency (average resonant frequency) within a second heating cycle corresponding to the second heating coil; wherein the difference between the second operating resonant frequency and a second target resonant frequency is less than or equal to a second target threshold; the second target resonant frequency is the resonant frequency at which the second heating coil operates at a corresponding target heating power; wherein the first heating cycle and the second heating cycle are alternately set. The first heating cycle includes multiple sequentially arranged first sub-cycles; the second heating cycle includes multiple sequentially arranged second sub-cycles; the step of driving the first heating coil to operate at an average resonant frequency as a first working resonant frequency within the first heating cycle corresponding to the first heating coil includes: driving the first heating coil to operate at a first adjusted resonant frequency corresponding to each first sub-cycle within each first sub-cycle; the step of driving the second heating coil to operate at an average resonant frequency as a second working resonant frequency within the second heating cycle corresponding to the second heating coil includes: driving the second heating coil to operate at a second adjusted resonant frequency corresponding to each second sub-cycle within each second sub-cycle; wherein the frequency difference between the first adjusted resonant frequency corresponding to the first sub-cycle and the second adjusted resonant frequency corresponding to the adjacent second sub-cycle is less than or equal to a preset frequency threshold; During the alternating switching, the frequency difference between the resonant frequencies of the first heating coil and the second heating coil is less than or equal to a preset frequency threshold.

7. An electromagnetic heating device, characterized in that, include: One or more processors; Memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications being configured to perform the drive control method as described in any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium contains program code, which can be called by a processor to execute the drive control method as described in any one of claims 1-5.

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