WO2019119641A1 - 电磁烹饪器具及其功率控制方法 - Google Patents

电磁烹饪器具及其功率控制方法 Download PDF

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Publication number
WO2019119641A1
WO2019119641A1 PCT/CN2018/077602 CN2018077602W WO2019119641A1 WO 2019119641 A1 WO2019119641 A1 WO 2019119641A1 CN 2018077602 W CN2018077602 W CN 2018077602W WO 2019119641 A1 WO2019119641 A1 WO 2019119641A1
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WIPO (PCT)
Prior art keywords
heating
period
wave
wave period
coil disk
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PCT/CN2018/077602
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English (en)
French (fr)
Inventor
雷俊
卞在银
王云峰
曾露添
江德勇
张帆
黄庶锋
刘文华
瞿月红
Original Assignee
佛山市顺德区美的电热电器制造有限公司
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Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Priority to JP2018544264A priority Critical patent/JP2020504894A/ja
Priority to EP18773064.3A priority patent/EP3528593A4/en
Priority to KR1020187019239A priority patent/KR102101736B1/ko
Priority to US16/284,956 priority patent/US11343881B2/en
Publication of WO2019119641A1 publication Critical patent/WO2019119641A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/08—Control, e.g. of temperature, of power using compensating or balancing arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/088—Pressure-cookers; Lids or locking devices specially adapted therefor adapted to high-frequency heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1272—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with more than one coil or coil segment per heating zone
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1281—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with flat coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/362—Coil arrangements with flat coil conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to the technical field of household appliances, in particular to a power control method of an electromagnetic cooking appliance and an electromagnetic cooking appliance.
  • electromagnetic cooking appliances In the case of low-power output control, electromagnetic cooking appliances usually use intermittent heating, which causes interference to the power grid, such as harmonic current and voltage flicker.
  • the present invention aims to solve at least one of the technical problems in the above-mentioned techniques to some extent. Therefore, the first object of the present invention is to provide a power control method for an electromagnetic cooking appliance, which can realize high-speed switching heating of a multi-wire disc, heating at different powers, and also reducing interference of harmonic current and voltage flicker.
  • a second object of the present invention is to provide a non-transitory computer readable storage medium.
  • a third object of the present invention is to provide an electromagnetic cooking appliance.
  • a first aspect of the present invention provides a power control method for an electromagnetic cooking appliance, the electromagnetic cooking appliance comprising a first coil disk and a second coil disk, the first coil disk and the first The two coil disks each correspond to an independent resonant circuit, and the power control method comprises the steps of: acquiring target power of the electromagnetic cooking appliance; determining a heating cycle of the electromagnetic cooking appliance according to the target power, wherein each The heating cycle includes at least one first heating period and at least one second heating period; controlling the first coil disk for heating during the first heating period, and controlling the second heating period during the second heating period The second coil disk is heated, wherein each of the first heating periods is followed by the second heating period to cause the first coil disk and the second coil disk to be heated and complementary.
  • the target power of the electromagnetic cooking appliance is acquired, and the heating cycle of the electromagnetic cooking appliance is determined according to the target power, wherein each heating cycle includes at least one first heating period and at least a second heating period, controlling the first coil disk for heating during the first heating period, and controlling the second coil disk for heating during the second heating period, wherein each of the first heating periods is followed by the second
  • the heating period is such that the first coil disk and the second coil disk are heated and complementary. Therefore, the method can realize high-speed switching heating of the multi-wire disk, heating at different powers, and also reducing interference of harmonic current and voltage flicker.
  • the power control method of the electromagnetic cooking appliance according to the above embodiment of the present invention may further have the following additional technical features:
  • each of the first heating period and each of the second heating periods respectively correspond to at least one half-wave period of the input AC power source.
  • each of the heating cycles comprises four half-wave periods of an alternating current power source, wherein the first heating period comprises a first half-wave period and a second half-wave period,
  • the second heating period includes a third half-wave period, and in the fourth half-wave period, both the first coil disk and the second coil disk stop heating.
  • each of the heating cycles includes eight half-wave periods of an alternating current power source, and the first heating period and the second heating period are two, wherein the first one The first heating period includes a first half-wave period and a second half-wave period, the first one of the second heating periods includes a third half-wave period, and the second one of the first heating periods includes a fifth half-wave period, the second of the second heating period includes a sixth half-wave period, the fourth half-wave period, the seventh half-wave period, and the eighth half-wave period, the Both the coil disk and the second coil disk stop heating.
  • each of the heating cycles includes sixteen half-wave periods of an alternating current power source, and the first heating period and the second heating period are four, wherein the first one The first heating period includes a first half-wave period and a second half-wave period, the first one of the second heating periods includes a third half-wave period, and the second one of the first heating periods
  • the fifth half wave period and the sixth half wave period are included, the second second heating period includes a seventh half wave period, and the third first heating period includes a ninth half wave period
  • the third said second heating period comprises a tenth half-wave period, the fourth said first heating period comprises a thirteenth half-wave period, and the fourth said second heating period comprises a Fourteen half-wave periods, in the fourth half-wave period, the eighth half-wave period, the eleventh-half-wave period, the twelfth-half-wave period, the fifteen-half-wave period, and the sixteenth In the half wave period, both the first coil disk and the second coil disk stop heating.
  • each of the heating cycles includes eight half-wave periods of an alternating current power source, and the first heating period and the second heating period are two, wherein the first one The first heating period includes a first half-wave period, a second half-wave period, and a third half-wave period, and the first one of the second heating periods includes a fourth half-wave period, and the second The first heating period includes a fifth half-wave period and a sixth half-wave period, and the second second heating period includes a seventh half-wave period and an eighth half-wave period.
  • each of the heating cycles includes sixteen half-wave periods of an alternating current power source, and the first heating period and the second heating period are four, wherein the first one The first heating period includes a first half-wave period, a second half-wave period, and a third half-wave period, and the first one of the second heating periods includes a fourth half-wave period, and the second The first heating period includes a fifth half-wave period, a sixth half-wave period, and a seventh half-wave period, and the second second heating period includes an eighth half-wave period, and the third The first heating period includes a ninth half wave period and a tenth half wave period, and the third said second heating period includes a eleventh half wave period and a twelfth half wave period,
  • the four said first heating periods include a thirteenth half-wave period and a fourteenth half-wave period, and the fourth said second heating period includes a fifteenth half-wave period and a sixteenth half-half Wave cycle.
  • the first coil disk is disposed concentrically or adjacently to the second coil disk.
  • a second aspect of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the power control method of the electromagnetic cooking appliance described above.
  • the non-transitory computer readable storage medium of the embodiment of the present invention can realize high-speed switching heating of a multi-wire disc by performing the power control method of the electromagnetic cooking appliance described above, and heating at different powers, and also reducing harmonic current and voltage. Flashing interference.
  • an embodiment of the third aspect of the present invention provides an electromagnetic cooking apparatus comprising a first coil disk, a second coil disk, a memory, a processor, and a memory stored on the processor and on the processor a power control program for an operating electromagnetic cooking appliance, wherein each of the first coil disk and the second coil disk corresponds to an independent resonant circuit, and the power control program of the electromagnetic cooking appliance is implemented by the processor The power control method of the above electromagnetic cooking appliance.
  • the power control method of the electromagnetic cooking appliance can realize high-speed switching heating of the multi-wire disc, heating with different powers, and also reducing interference of harmonic current and voltage flicker.
  • FIG. 1 is a flow chart of a power control method of an electromagnetic cooking appliance according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a drive control circuit of an electromagnetic cooking appliance according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a drive control circuit of an electromagnetic cooking appliance according to another embodiment of the present invention.
  • FIG. 4 is a waveform diagram of a power control method of an electromagnetic cooking appliance according to an embodiment of the present invention.
  • Figure 5 is a resonance waveform diagram of a power control method of an electromagnetic cooking appliance according to a first embodiment of the present invention
  • Figure 6 is a resonance waveform diagram of a power control method of an electromagnetic cooking appliance according to a second embodiment of the present invention.
  • Figure 7 is a resonance waveform diagram of a power control method of an electromagnetic cooking appliance in accordance with a third embodiment of the present invention.
  • Figure 8 is a resonance waveform diagram of a power control method of an electromagnetic cooking appliance in accordance with a fourth embodiment of the present invention.
  • Figure 9 is a resonance waveform diagram of a power control method of an electromagnetic cooking appliance in accordance with a fifth embodiment of the present invention.
  • FIG. 1 is a flow chart of a power control method of an electromagnetic cooking appliance in accordance with an embodiment of the present invention.
  • the electromagnetic cooking appliance may include a first coil disk 70 and a second coil disk 80, each of which corresponds to an independent one. Resonant circuit.
  • the first coil disk 70 and the second coil disk 80 may be disposed concentrically, or as shown in FIG. 3, the first coil disk 70 and the second coil disk 80 may be disposed adjacent to each other.
  • the driving control circuit of the electromagnetic cooking appliance may include: an alternating current power source 10, a rectifier module 20, a control module 30, a first switch module 40, a second switch module 50, and a zero-crossing detection module. 60.
  • the first switch module 40 and the second switch module 50 may be IGBTs.
  • the first coil disk 70 and the second coil disk 80 respectively have independent resonant circuits, that is, the first switch module 40 is used to control the on and off of the first coil disk 70, and the second switch module 50 is used to control the second coil.
  • the disk 80 is turned on and off.
  • the zero-crossing detection module 60 is configured to detect an AC power zero-crossing signal
  • the rectifier module 20 is configured to rectify the input AC power into a DC power
  • the switch module is configured to invert the rectified DC signal into a high-frequency signal above 20KHz, and a high-frequency signal
  • the signal transforms the electrical signal into the transformed electromagnetic signal through the coil disk, and the electromagnetic cooking device (heated body) generates eddy current and hysteresis motion in the alternating electromagnetic signal to generate energy.
  • the power control method of the electromagnetic cooking appliance of the embodiment of the present invention may include the following steps:
  • each heating cycle includes at least one first heating period and at least one second heating period.
  • each of the first heating period and each of the second heating periods respectively correspond to at least one half-wave period of the input AC power source.
  • the number of half-wave periods of the input AC power source corresponding to each of the first heating period and each of the second heating periods may be the same or different.
  • the first heating period is plural, the number of half-wave periods of the input AC power source corresponding to each first heating period may be the same or different, and when the second heating period is plural, each second heating The number of half-wave periods of the input AC power source corresponding to the time period may be the same or different.
  • each heating cycle may include at least one first heating period and at least one The second heating period, a first heating period and a second heating period constitute a minimum heating period, and the heating cycle of the electromagnetic cooking appliance may include at least one minimum period.
  • the first coil disk When the first coil disk is controlled to be heated during the first heating period, the second coil disk is not heated, and when the second coil disk is controlled to be heated during the second heating period, the first coil disk is not heated, the first coil disk and the first coil disk
  • the two coil discs are intermittently heated, and after heating the first coil disc, the second coil disc is heated (the second heating period is followed by the first heating period), so that the first coil disc and the second coil disc The coil disk is heated to complement each other. Heating the first coil disk and the second coil disk cyclically throughout the heating cycle, and until the current power of the electromagnetic cooking appliance reaches a set target power,
  • the current heating power of the electromagnetic cooking appliance is the sum of the power of the first coil disk for each first heating period and the power of the second coil disk for each second heating period.
  • each heating cycle may include four half-wave periods of an alternating current power source, wherein the first heating period may include a first half-wave period and a second half-wave period, and second The heating period may include a third half-wave period in which the first coil disk and the second coil disk stop heating.
  • both the first heating period and the second heating period are one.
  • the first switch module is in an on state during the first half wave period and the second half wave period, and controls the first coil disk to perform heating, during which the second switch module is in an off state, and the second switch module is in a third state.
  • the half-wave period is in an on state, and the second coil disk is controlled to be heated, during which the first switching module is in an off state to intermittently heat the first coil disk and the second coil disk.
  • the first switch module and the second switch module are both in an off state during the fourth half wave period, so that when the first coil disk and the second coil disk stop heating, according to the target power of the electromagnetic cooking appliance and the first coil disk and
  • each heating cycle may include eight half-wave periods of the alternating current power source, and the first heating period and the second heating period are both, wherein the first first heating time
  • the segment may include a first half-wave period and a second half-wave period
  • the first second heating period may include a third half-wave period
  • the second first heating period may include a fifth half-wave period
  • the second second heating period may include a sixth half-wave period, and in the fourth half-wave period, the seventh half-wave period, and the eighth half-wave period, the first coil disk and the second coil disk are both Stop heating.
  • each heating cycle includes two first heating periods and two second heating periods, and the heating powers corresponding to the two first heating periods are different (including the AC power source).
  • the number of half-wave cycles is different).
  • the first switch module is in an on state during the first half-wave period, the second half-wave period, and the fifth half-wave period, and controls the first coil disk to be heated, during which the second switch module is in an off state;
  • the second switch module is in an on state during the third half wave period and the sixth half wave period, and controls the second coil disk to perform heating, during which the first switch module is in an off state;
  • the first switch module and the second switch module In the fourth half-wave period, the seventh half-wave period, and the eighth half-wave period are all in an off state, the first coil disk and the second coil disk are both stopped to be heated, and at this time, according to the target power of the electromagnetic cooking appliance and the first
  • the average power of one of the coil disk and the second coil disk adjusts the heating power of the first coil disk and the second coil disk
  • each heating cycle may include sixteen half-wave periods of the alternating current power source, and the first heating period and the second heating period are four, wherein the first first heating The time period may include a first half wave period and a second half wave period, the first second heating period includes a third half wave period, and the second first heating period may include a fifth half wave period And a sixth half-wave period, the second second heating period may include a seventh half-wave period, and the third first heating period may include a ninth half-wave period, and the third second heating period A tenth half-wave period may be included, a fourth first heating period may include a thirteenth half-wave period, and a fourth second heating period may include a fourteenth half-wave period, in the fourth half Wave period, eighth half-wave period, eleventh half-wave period, twelfth half-wave period, fifteen-half half-wave period, and sixteenth half-wave period, first coil and second coil The plate stops heating.
  • each heating cycle includes four first heating periods and four second heating periods, and the first first heating period and the second first heating period correspond to The heating power is different from the heating power corresponding to the third first heating period and the fourth first heating period (the number of half-wave periods of the included AC power source is different).
  • the first switch module is turned on in the first half wave period, the second half wave period, the fifth half wave period, the sixth half wave period, the ninth half wave period, and the thirteenth half wave period a state in which the first coil disk is controlled to be heated, during which the second switch module is in an off state;
  • the second switch module is in a third half wave period, a seventh half wave period, a tenth half wave period, and a fourteenth
  • the half-wave period is in an on state, and the second coil disk is controlled to be heated, during which the first switch module is in an off state;
  • the first switch module and the second switch module are in a fourth half wave period, an eighth half wave period
  • the eleventh half-wave period, the twelfth half-wave period, the fifteenth half-wave period, and the sixteenth half-wave period are all in an off state, and the first coil disk and the second coil disk are both stopped to be heated.
  • the heating power of the first coil disk and the second coil disk can be adjusted according to the target power of
  • each heating cycle may include eight half-wave periods of the alternating current power source, and the first heating period and the second heating period are both, wherein the first first heating time
  • the segment may include a first half-wave period, a second half-wave period, and a third half-wave period
  • the first second heating period may include a fourth half-wave period
  • the second first heating period may
  • the fifth half-wave period and the sixth half-wave period are included, and the second second heating period may include a seventh half-wave period and an eighth half-wave period.
  • each heating cycle includes two first heating periods and two second heating periods, and heating of the two first heating periods and the two second heating periods
  • the power is different (the number of half-wave cycles of the included AC power supply is different).
  • the first switch module is in a conducting state in the first half-wave period, the second half-wave period, the third half-wave period, the fifth half-wave period, and the sixth half-wave period, and controls the first coil disk to perform Heating, during which the second switching module is in an off state.
  • the second switch module is in an on state in the fourth half wave period, the seventh half wave period, and the eighth half wave period, and controls the second coil disk to perform heating, during which the first switch module is in an off state,
  • the electromagnetic heating power fluctuation is small.
  • each heating cycle may include sixteen half-wave periods of an alternating current power source, and each of the first heating period and the second heating period is four, wherein the first first heating The time period may include a first half wave period, a second half wave period, and a third half wave period, and the first second heating period may include a fourth half wave period, and the second first heating period
  • the fifth half-wave period, the sixth half-wave period, and the seventh half-wave period may be included
  • the second second heating period may include an eighth half-wave period
  • the third first heating period may include a ninth half-wave period and a tenth half-wave period
  • the third second heating period may include an eleventh half-wave period and a twelfth half-wave period
  • the fourth first heating period may include The thirteenth half-wave period and the fourteenth half-wave period, and the fourth second heating period may include a fifteenth half-wave period and a sixteenth half-wave period.
  • each heating cycle includes four first heating periods and four second heating periods, and the first first heating period and the second first heating period correspond to The heating power is different from the heating power corresponding to the third first heating period and the fourth first heating period (including the number of half-wave periods of the AC power source), the first second heating period and the first The heating power corresponding to the two second heating periods is different from the heating power corresponding to the third second heating period and the fourth second heating period (the number of half-wave periods of the included AC power source is different).
  • the first switching module is in the first half wave period, the second half wave period, the third half wave period, the fifth half wave period, the sixth half wave period, the seventh half wave period, and the ninth
  • the half-wave period, the tenth half-wave period, the thirteen-th half-wave period, and the fourteenth half-wave period are in an on state, and the first coil disk is controlled to be heated, during which the second switching module is in an off state.
  • the second switching module is in the fourth half wave period, the eighth half wave period, the eleventh half wave period, the twelfth half wave period, the fifteenth half wave period, and the sixteenth half wave period
  • the second coil disk is controlled to be heated, during which the first switch module is in an off state, so that the electromagnetic heating power fluctuation is small.
  • the resonance circuit corresponding to the first coil disk since the alternating magnetic field is generated around the first coil disk when the first coil disk is controlled to be heated, the resonance circuit corresponding to the first coil disk generates a resonance voltage. At the same time, even if the second coil disk is not heated, its corresponding resonant circuit generates a resonant voltage (less than the voltage generated by the resonant circuit corresponding to the first coil disk). Similarly, when the second coil disk is controlled to be heated, even if the first coil disk is not heated, the resonance circuit corresponding to the first coil disk generates a resonance voltage.
  • each of the four half-waves of the AC power source is a small period in each heating cycle, one, two or four small periods are one large period, and when the heating periods of the four small periods are the same, heating The period is a small period, otherwise it is two or four.
  • the four-cycle large-cycle heating mode has the largest interference of harmonic current and voltage flicker, two small cycles constitute the large-cycle heating mode, and the second cycle constitutes the smallest heating mode.
  • the target power of the electromagnetic cooking appliance is acquired, and the heating cycle of the electromagnetic cooking appliance is determined according to the target power, wherein each heating cycle includes at least one first a heating period and at least one second heating period, controlling the first coil disk for heating during the first heating period, and controlling the second coil disk for heating during the second heating period, wherein each of the first heating periods
  • the second heating period is followed by the second coil disk and the second coil disk are heated and complementary. Therefore, the method can realize high-speed switching heating of the multi-wire disk, heating at different powers, and also reducing interference of harmonic current and voltage flicker.
  • embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by the processor, implements the power control method of the electromagnetic cooking appliance described above.
  • the non-transitory computer readable storage medium of the embodiment of the present invention can realize high-speed switching heating of a multi-wire disc by performing the power control method of the electromagnetic cooking appliance described above, and heating at different powers, and also reducing harmonic current and voltage. Flashing interference.
  • embodiments of the present invention also provide an electromagnetic cooking appliance comprising a first coil disk, a second coil disk, a memory, a processor, and power control of an electromagnetic cooking appliance stored on the memory and operable on the processor
  • the program wherein the first coil disk and the second coil disk each correspond to an independent resonant circuit, and the power control program of the electromagnetic cooking appliance is implemented by the processor to implement the power control method of the electromagnetic cooking appliance described above.
  • the power control method of the electromagnetic cooking appliance can realize high-speed switching heating of the multi-wire disc, heating with different powers, and also reducing interference of harmonic current and voltage flicker.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
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Abstract

一种电磁烹饪器具及其功率控制方法，所述电磁烹饪器具包括第一线圈盘（70）和第二线圈盘（80），第一线圈盘（70）和第二线圈盘（80）各自对应一个独立的谐振回路，所述功率控制方法可包括以下步骤：获取电磁烹饪器具的目标功率（S1）；根据目标功率确定电磁烹饪器具的加热周期，其中，每个加热周期包括至少一个第一加热时间段和至少一个第二加热时间段（S2）；在第一加热时间段控制第一线圈盘进行加热，并在第二加热时间段控制第二线圈盘进行加热，其中，每个第一加热时间段后紧跟第二加热时间段，以使第一线圈盘与第二线圈盘进行加热互补（S3）。上述控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。

Description

电磁烹饪器具及其功率控制方法 技术领域
本发明涉及家用电器技术领域，特别涉及一种电磁烹饪器具的功率控制方法和一种电磁烹饪器具。
背景技术
电磁烹饪器具在低功率输出控制时，通常采用间歇加热，这会对电网造成干扰，如谐波电流、电压闪烁。
发明内容
本发明旨在至少在一定程度上解决上述技术中的技术问题之一。为此，本发明的第一个目的在于提出一种电磁烹饪器具的功率控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
本发明的第二个目的在于提出一种非临时性计算机可读存储介质。
本发明的第三个目的在于提出一种电磁烹饪器具。
为达到上述目的，本发明第一方面实施例提出了一种电磁烹饪器具的功率控制方法，所述电磁烹饪器具包括第一线圈盘和第二线圈盘，所述第一线圈盘和所述第二线圈盘各自对应一个独立的谐振回路，所述功率控制方法包括以下步骤：获取所述电磁烹饪器具的目标功率；根据所述目标功率确定所述电磁烹饪器具的加热周期，其中，每个所述加热周期包括至少一个第一加热时间段和至少一个第二加热时间段；在所述第一加热时间段控制所述第一线圈盘进行加热，并在所述第二加热时间段控制所述第二线圈盘进行加热，其中，每个所述第一加热时间段后紧跟所述第二加热时间段，以使所述第一线圈盘与所述第二线圈盘进行加热互补。
根据本发明实施例的电磁烹饪器具的功率控制方法，获取电磁烹饪器具的目标功率，并根据目标功率确定电磁烹饪器具的加热周期，其中，每个加热周期包括至少一个第一加热时间段和至少一个第二加热时间段，在第一加热时间段控制第一线圈盘进行加热，并在第二加热时间段控制第二线圈盘进行加热，其中，每个第一加热时间段后紧跟第二加热时间段，以使第一线圈盘与第二线圈盘进行加热互补。由此，该方法能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
另外，根据本发明上述实施例提出的电磁烹饪器具的功率控制方法还可以具有如下附加的技术特征：
根据本发明的一个实施例，每个所述第一加热时间段和每个所述第二加热时间段分别对应输入交流电源的至少一个半波周期。
根据本发明的一个实施例，每个所述加热周期包括交流电源的四个半波周期，其中，所述第一加热时间段包括第一个半波周期和第二个半波周期，所述第二加热时间段包括第三个半波周期，在第四个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
根据本发明的一个实施例，每个所述加热周期包括交流电源的八个半波周期，所述第一加热时间段和所述第二加热时间段均为两个，其中，第一个所述第一加热时间段包括第一个半波周期和第二个半波周期，第一个所述第二加热时间段包括第三个半波周期，第二个所述第一加热时间段包括第五个半波周期，第二个所述第二加热时间段包括第六个半波周期，在第四个半波周期、第七个半波周期和第八个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
根据本发明的一个实施例，每个所述加热周期包括交流电源的十六个半波周期，所述第一加热时间段和所述第二加热时间段均为四个，其中，第一个所述第一加热时间段包括第一个半波周期和第二个半波周期，第一个所述第二加热时间段包括第三个半波周期，第二个所述第一加热时间段包括第五个半波周期和第六个半波周期，第二个所述第二加热时间段包括第七个半波周期，第三个所述第一加热时间段包括第九个半波周期，第三个所述第二加热时间段包括第十个半波周期，第四个所述第一加热时间段包括第十三个半波周期，第四个所述第二加热时间段包括第十四个半波周期，在第四个半波周期、第八个半波周期、第十一个半波周期、第十二个半波周期、第十五个半波周期和第十六个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
根据本发明的一个实施例，每个所述加热周期包括交流电源的八个半波周期，所述第一加热时间段和所述第二加热时间段均为两个，其中，第一个所述第一加热时间段包括第一个半波周期、第二个半波周期和第三个半波周期，第一个所述第二加热时间段包括第四个半波周期，第二个所述第一加热时间段包括第五个半波周期和第六个半波周期，第二个所述第二加热时间段包括第七个半波周期和第八个半波周期。
根据本发明的一个实施例，每个所述加热周期包括交流电源的十六个半波周期，所述第一加热时间段和所述第二加热时间段均为四个，其中，第一个所述第一加热时间段包括第一个半波周期、第二个半波周期和第三个半波周期，第一个所述第二加热时间段包括第四个半波周期，第二个所述第一加热时间段包括第五个半波周期、第六个半波周期和第七个半波周期，第二个所述第二加热时间段包括第八个半波周期，第三个所述第一加热时间段包括第九个半波周期和第十个半波周期，第三个所述第二加热时间段包括第十一个半波周期和第十二个半波周期，第四个所述第一加热时间段包括第十三个半波周期和第十四个 半波周期，第四个所述第二加热时间段包括第十五个半波周期和第十六个半波周期。
根据本发明的一个实施例，所述第一线圈盘与所述第二线圈盘同心设置或者相邻设置。
为达到上述目的，本发明第二方面实施例提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电磁烹饪器具的功率控制方法。
本发明实施例的非临时性计算机可读存储介质，通过执行上述的电磁烹饪器具的功率控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
为达到上述目的，本发明第三方面实施例提出了一种电磁烹饪器具，包括第一线圈盘、第二线圈盘、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的电磁烹饪器具的功率控制程序，其中，所述第一线圈盘和所述第二线圈盘各自对应一个独立的谐振回路，所述电磁烹饪器具的功率控制程序被所述处理器执行时实现上述的电磁烹饪器具的功率控制方法。
本发明实施例的电磁烹饪器具，通过上述的电磁烹饪器具的功率控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
附图说明
图1是根据本发明实施例的电磁烹饪器具的功率控制方法的流程图；
图2是根据本发明一个实施例的电磁烹饪器具的驱动控制电路的结构示意图；
图3是根据本发明另一个实施例的电磁烹饪器具的驱动控制电路的结构示意图；
图4是根据本发明一个实施例的电磁烹饪器具的功率控制方法的波形图；
图5是根据本发明第一个实施例的电磁烹饪器具的功率控制方法的谐振波形图；
图6是根据本发明第二个实施例的电磁烹饪器具的功率控制方法的谐振波形图；
图7是根据本发明第三个实施例的电磁烹饪器具的功率控制方法的谐振波形图；
图8是根据本发明第四个实施例的电磁烹饪器具的功率控制方法的谐振波形图；
图9是根据本发明第五个实施例的电磁烹饪器具的功率控制方法的谐振波形图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面结合附图来描述根据本发明实施例提出的电磁烹饪器具的功率控制方法和电磁烹饪器具。
图1是根据本发明实施例的电磁烹饪器具的功率控制方法的流程图。
在本发明的实施例中，如图2和图3所示，电磁烹饪器具可包括第一线圈盘70和第二线圈盘80，第一线圈盘70和第二线圈盘80各自对应一个独立的谐振回路。其中，如图2所示，第一线圈盘70与第二线圈盘80可以同心设置，或者如图3所示，第一线圈盘70与第二线圈盘80可以相邻设置。
具体地，如图2和图3所示，电磁烹饪器具的驱动控制电路可包括：交流电源10、整流模块20、控制模块30，第一开关模块40、第二开关模块50和过零检测模块60。其中，第一开关模块40和第二开关模块50可以为IGBT。第一线圈盘70和第二线圈盘80分别具有独立的谐振回路，即第一开关模块40用于控制第一线圈盘70的导通和关断，第二开关模块50用于控制第二线圈盘80的导通和关断。过零检测模块60用于检测交流电源过零信号，整流模块20用于将输入的交流电源整流成直流电，开关模块用于将整流后的直流信号逆变成20KHz以上的高频信号，高频信号通过线圈盘将电信号转变成交变的电磁信号，电磁烹饪器具(被加热体)在交变的电磁信号中产生涡流及磁滞运动，产生能量。
如图4所示，当其中一个开关模块控制对应的线圈盘工作时，在线圈盘周围和被加热体的周边会产生交变的磁场，没有被开关模块控制的线圈盘在交变磁场中会产生跟随式频率相同谐振，并且两个谐振的到达波谷时间非常接近。
如图1所示，本发明实施例的电磁烹饪器具的功率控制方法可包括以下步骤：
S1，获取电磁烹饪器具的目标功率。
S2，根据目标功率确定电磁烹饪器具的加热周期，其中，每个加热周期包括至少一个第一加热时间段和至少一个第二加热时间段。在本发明的实施例中，每个第一加热时间段和每个第二加热时间段分别对应输入交流电源的至少一个半波周期。
其中，每个第一加热时间段与每个第二加热时间段对应的输入交流电源的半波周期的个数可以相同或不同。当第一加热时间段为多个时，每个第一加热时间段对应的输入交流电源的半波周期个数可以相同或不同，当第二加热时间段为多个时，每个第二加热时间段对应的输入交流电源的半波周期个数可以相同或不同。
S3，在第一加热时间段控制第一线圈盘进行加热，并在第二加热时间段控制第二线圈盘进行加热，其中，每个第一加热时间段后紧跟第二加热时间段，以使第一线圈盘与第二线圈盘进行加热互补。
具体地，在电磁烹饪器具上电工作后，获取电磁烹饪器具的目标功率，然后根据目标功率确定电磁烹饪器具的加热周期，每个加热周期内均可包括至少一个第一加热时间段和至少一个第二加热时间段，一个第一加热时间段和一个第二加热时间段构成一个最小加热周期，电磁烹饪器具的加热周期可包括至少一个最小周期。在第一加热时间段控制第一线 圈盘进行加热时，不对第二线圈盘加热，在第二加热时间段控制第二线圈盘进行加热时，不对第一线圈盘加热，第一线圈盘和第二线圈盘进行间歇加热，并且对第一线圈盘加热后，紧跟着对第二线圈盘加热(第二加热时间段紧跟着第一加热时间段)，以使第一线圈盘和第二线圈盘进行加热互补。在整个加热周期内对第一线圈盘和第二线圈盘循环加热，并且，直至电磁烹饪器具的当前功率达到设定的目标功率，
其中，电磁烹饪器具的当前加热功率为每个第一加热时间段对第一线圈盘加热的功率和每个第二加热时间段对第二线圈盘加热的功率的总和。
下面对每个加热周期内第一加热时间段和第二加热时间段所包含的交流电源的半波周期的个数进行介绍。
根据本发明的第一个实施例，每个加热周期可包括交流电源的四个半波周期，其中，第一加热时间段可包括第一个半波周期和第二个半波周期，第二加热时间段可包括第三个半波周期，在第四个半波周期，第一线圈盘和第二线圈盘均停止加热。
也就是说，如图5所示，第一加热时间段和第二加热时间段均为一个。第一开关模块在第一个半波周期和第二个半波周期处于导通状态，控制第一线圈盘进行加热，在此期间第二开关模块处于截止状态，第二开关模块在第三个半波周期处于导通状态，控制第二线圈盘进行加热，在此期间第一开关模块处于截止状态，以使第一线圈盘和第二线圈盘间歇加热。第一开关模块和第二开关模块在第四个半波周期均处于截止状态，以在第一线圈盘和第二线圈盘停止加热时，可根据电磁烹饪器具的目标功率与第一线圈盘和第二线圈盘的平均功率(其中，平均功率＝每个半波周期的第一线圈盘和第二线圈盘的功率总和/加热周期)对第一线圈盘和第二线圈盘的加热功率进行调节。
根据本发明的第二个实施例，每个加热周期可包括交流电源的八个半波周期，第一加热时间段和第二加热时间段均为两个，其中，第一个第一加热时间段可包括第一个半波周期和第二个半波周期，第一个第二加热时间段可包括第三个半波周期，第二个第一加热时间段可包括第五个半波周期，第二个第二加热时间段可包括第六个半波周期，在第四个半波周期、第七个半波周期和第八个半波周期，第一线圈盘和第二线圈盘均停止加热。
也就是说，如图6所示，每个加热周期包括两个第一加热时间段和两个第二加热时间段，且两个第一加热时间段分别对应的加热功率不同(包括的交流电源的半波周期个数不同)。第一开关模块在第一个半波周期、第二个半波周期和第五个半波周期处于导通状态，控制第一线圈盘进行加热，在此期间第二开关模块处于截止状态；第二开关模块在第三个半波周期和第六个半波周期处于导通状态，控制第二线圈盘进行加热，在此期间第一开关模块处于截止状态；第一开关模块和第二开关模块在第四个半波周期、第七半波周期和第八个半波周期均处于截止状态，第一线圈盘和第二线圈盘均停止加热，此时可根据电磁烹 饪器具的目标功率与第一线圈盘和第二线圈盘的平均功率对第一线圈盘和第二线圈盘的加热功率进行调节。
根据本发明的第三个实施例，每个加热周期可包括交流电源的十六个半波周期，第一加热时间段和第二加热时间段均为四个，其中，第一个第一加热时间段可包括第一个半波周期和第二个半波周期，第一个第二加热时间段包括第三个半波周期，第二个第一加热时间段可包括第五个半波周期和第六个半波周期，第二个第二加热时间段可包括第七个半波周期，第三个第一加热时间段可包括第九个半波周期，第三个第二加热时间段可包括第十个半波周期，第四个第一加热时间段可包括第十三个半波周期，第四个第二加热时间段可包括第十四个半波周期，在第四个半波周期、第八个半波周期、第十一个半波周期、第十二个半波周期、第十五个半波周期和第十六个半波周期，第一线圈盘和第二线圈盘均停止加热。
也就是说，如图7所示，每个加热周期包括四个第一加热时间段和四个第二加热时间段，且第一个第一加热时间段和第二个第一加热时间段对应的加热功率与第三个第一加热时间段和第四个第一加热时间段对应的加热功率不同(包括的交流电源的半波周期个数不同)。第一开关模块在第一个半波周期、第二个半波周期、第五个半波周期、第六个半波周期、第九个半波周期和第十三个半波周期处于导通状态，控制第一线圈盘进行加热，在此期间第二开关模块处于截止状态；第二开关模块在第三个半波周期、第七个半波周期、第十个半波周期和第十四个半波周期处于导通状态，控制第二线圈盘进行加热，在此期间第一开关模块处于截止状态；第一开关模块和第二开关模块在第四个半波周期、第八半波周期、第十一个半波周期、第十二个半波周期、第十五个半波周期和第十六个半波周期均处于截止状态，第一线圈盘和第二线圈盘均停止加热，此时可根据电磁烹饪器具的目标功率与第一线圈盘和第二线圈盘的平均功率对第一线圈盘和第二线圈盘的加热功率进行调节。
根据本发明的第四个实施例，每个加热周期可包括交流电源的八个半波周期，第一加热时间段和第二加热时间段均为两个，其中，第一个第一加热时间段可包括第一个半波周期、第二个半波周期和第三个半波周期，第一个第二加热时间段可包括第四个半波周期，第二个第一加热时间段可包括第五个半波周期和第六个半波周期，第二个第二加热时间段可包括第七个半波周期和第八个半波周期。
也就是说，如图8所示，每个加热周期包括两个第一加热时间段和两个第二加热时间段，且两个第一加热时间段和两个第二加热时间段对应的加热功率均不同(包括的交流电源的半波周期个数不同)。第一开关模块在第一个半波周期、第二个半波周期、第三个半波周期、第五个半波周期和第六个半波周期处于导通状态，控制第一线圈盘进行加热，在此期间第二开关模块处于截止状态。第二开关模块在第四个半波周期、第七个半波周期和第 八个半波周期处于导通状态，控制第二线圈盘进行加热，在此期间第一开关模块处于截止状态，以使电磁加热功率波动小。
根据本发明的第五个实施例，每个加热周期可包括交流电源的十六个半波周期，第一加热时间段和第二加热时间段均为四个，其中，第一个第一加热时间段可包括第一个半波周期、第二个半波周期和第三个半波周期，第一个第二加热时间段可包括第四个半波周期，第二个第一加热时间段可包括第五个半波周期、第六个半波周期和第七个半波周期，第二个第二加热时间段可包括第八个半波周期，第三个第一加热时间段可包括第九个半波周期和第十个半波周期，第三个第二加热时间段可包括第十一个半波周期和第十二个半波周期，第四个第一加热时间段可包括第十三个半波周期和第十四个半波周期，第四个第二加热时间段可包括第十五个半波周期和第十六个半波周期。
也就是说，如图9所示，每个加热周期包括四个第一加热时间段和四个第二加热时间段，且第一个第一加热时间段和第二个第一加热时间段对应的加热功率与第三个第一加热时间段和第四个第一加热时间段对应的加热功率不同(包括的交流电源的半波周期个数不同)，第一个第二加热时间段和第二个第二加热时间段对应的加热功率与第三个第二加热时间段和第四个第二加热时间段对应的加热功率不同(包括的交流电源的半波周期个数不同)。第一开关模块在第一个半波周期、第二个半波周期、第三个半波周期、第五个半波周期、第六个半波周期、第七个半波周期、第九个半波周期、第十个半波周期、第十三个半波周期和第十四个半波周期处于导通状态，控制第一线圈盘进行加热，在此期间第二开关模块处于截止状态。第二开关模块在第四个半波周期、第八个半波周期、第十一个半波周期、第十二个半波周期、第十五个半波周期和第十六个半波周期处于导通状态，控制第二线圈盘进行加热，在此期间第一开关模块处于截止状态，以使电磁加热功率波动小。
由上可知，如图5-图9所示，由于在控制第一线圈盘进行加热时，第一线圈盘周围会产生交变的磁场，所以在第一线圈盘对应的谐振回路产生谐振电压的同时，即使第二线圈盘未进行加热，其对应的谐振回路也会产生谐振电压(小于第一线圈盘对应的谐振回路产生的电压)。同样地，在控制第二线圈盘进行加热时，即使第一线圈盘未进行加热，第一线圈盘对应的谐振回路也会产生谐振电压。
需要说明的是，如果每个加热周期中以交流电源的四个半波为一个小周期，一个、两个或者四个小周期为一个大周期，当四个小周期的加热周期相同时，加热周期为一个小周期，否则为两个或者为四个。其中，四个小周期组成的大周期加热模式谐波电流和电压闪烁的干扰最大，两个小周期组成大周期加热模式其次，一个小周期组成加热模式最小。
综上所述，根据本发明实施例的电磁烹饪器具的功率控制方法，获取电磁烹饪器具的目标功率，并根据目标功率确定电磁烹饪器具的加热周期，其中，每个加热周期包括至少 一个第一加热时间段和至少一个第二加热时间段，在第一加热时间段控制第一线圈盘进行加热，并在第二加热时间段控制第二线圈盘进行加热，其中，每个第一加热时间段后紧跟第二加热时间段，以使第一线圈盘与第二线圈盘进行加热互补。由此，该方法能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
另外，本发明的实施例还提出了一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的电磁烹饪器具的功率控制方法。
本发明实施例的非临时性计算机可读存储介质，通过执行上述的电磁烹饪器具的功率控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
此外，本发明的实施例还提出了一种电磁烹饪器具，包括第一线圈盘、第二线圈盘、存储器、处理器及存储在存储器上并可在处理器上运行的电磁烹饪器具的功率控制程序，其中，第一线圈盘和第二线圈盘各自对应一个独立的谐振回路，电磁烹饪器具的功率控制程序被处理器执行时实现上述的电磁烹饪器具的功率控制方法。
需要说明的是，本发明实施例的电磁烹饪器具中未披露的细节，请参照本发明实施例的电磁烹饪器具的功率控制方法中所披露的细节，具体这里不再赘述。
本发明实施例的电磁烹饪器具，通过上述的电磁烹饪器具的功率控制方法，能够实现多线盘高速切换加热，以不同功率进行加热，同时还可以降低谐波电流、电压闪烁的干扰。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种电磁烹饪器具的功率控制方法，其特征在于，所述电磁烹饪器具包括第一线圈盘和第二线圈盘，所述第一线圈盘和所述第二线圈盘各自对应一个独立的谐振回路，所述功率控制方法包括以下步骤：
    获取所述电磁烹饪器具的目标功率；
    根据所述目标功率确定所述电磁烹饪器具的加热周期，其中，每个所述加热周期包括至少一个第一加热时间段和至少一个第二加热时间段；
    在所述第一加热时间段控制所述第一线圈盘进行加热，并在所述第二加热时间段控制所述第二线圈盘进行加热，其中，每个所述第一加热时间段后紧跟所述第二加热时间段，以使所述第一线圈盘与所述第二线圈盘进行加热互补。
  2. 如权利要求1所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述第一加热时间段和每个所述第二加热时间段分别对应输入交流电源的至少一个半波周期。
  3. 如权利要求1或2所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述加热周期包括交流电源的四个半波周期，其中，所述第一加热时间段包括第一个半波周期和第二个半波周期，所述第二加热时间段包括第三个半波周期，在第四个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
  4. 如权利要求1或2所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述加热周期包括交流电源的八个半波周期，所述第一加热时间段和所述第二加热时间段均为两个，其中，第一个所述第一加热时间段包括第一个半波周期和第二个半波周期，第一个所述第二加热时间段包括第三个半波周期，第二个所述第一加热时间段包括第五个半波周期，第二个所述第二加热时间段包括第六个半波周期，在第四个半波周期、第七个半波周期和第八个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
  5. 如权利要求1或2所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述加热周期包括交流电源的十六个半波周期，所述第一加热时间段和所述第二加热时间段均为四个，其中，第一个所述第一加热时间段包括第一个半波周期和第二个半波周期，第一个所述第二加热时间段包括第三个半波周期，第二个所述第一加热时间段包括第五个半波周期和第六个半波周期，第二个所述第二加热时间段包括第七个半波周期，第三个所述第一加热时间段包括第九个半波周期，第三个所述第二加热时间段包括第十个半波周期，第四个所述第一加热时间段包括第十三个半波周期，第四个所述第二加热时间段包括第十四个半波周期，在第四个半波周期、第八个半波周期、第十一个半波周期、第十二个半波周期、第十五个半波周期和第十六个半波周期，所述第一线圈盘和所述第二线圈盘均停止加热。
  6. 如权利要求1或2所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述加热周期包括交流电源的八个半波周期，所述第一加热时间段和所述第二加热时间段均为两个，其中，第一个所述第一加热时间段包括第一个半波周期、第二个半波周期和第三个半波周期，第一个所述第二加热时间段包括第四个半波周期，第二个所述第一加热时间段包括第五个半波周期和第六个半波周期，第二个所述第二加热时间段包括第七个半波周期和第八个半波周期。
  7. 如权利要求1或2所述的电磁烹饪器具的功率控制方法，其特征在于，每个所述加热周期包括交流电源的十六个半波周期，所述第一加热时间段和所述第二加热时间段均为四个，其中，第一个所述第一加热时间段包括第一个半波周期、第二个半波周期和第三个半波周期，第一个所述第二加热时间段包括第四个半波周期，第二个所述第一加热时间段包括第五个半波周期、第六个半波周期和第七个半波周期，第二个所述第二加热时间段包括第八个半波周期，第三个所述第一加热时间段包括第九个半波周期和第十个半波周期，第三个所述第二加热时间段包括第十一个半波周期和第十二个半波周期，第四个所述第一加热时间段包括第十三个半波周期和第十四个半波周期，第四个所述第二加热时间段包括第十五个半波周期和第十六个半波周期。
  8. 如权利要求1-7中任一项所述的电磁烹饪器具的功率控制方法，其特征在于，所述第一线圈盘与所述第二线圈盘同心设置或者相邻设置。
  9. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-8中任一项所述的电磁烹饪器具的功率控制方法。
  10. 一种电磁烹饪器具，其特征在于，包括第一线圈盘、第二线圈盘、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的电磁烹饪器具的功率控制程序，其中，所述第一线圈盘和所述第二线圈盘各自对应一个独立的谐振回路，所述电磁烹饪器具的功率控制程序被所述处理器执行时实现如权利要求1-8中任一项所述的电磁烹饪器具的功率控制方法。
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