CN116546682A - Induction cooker resonance power control method and device and induction cooker - Google Patents
Induction cooker resonance power control method and device and induction cooker Download PDFInfo
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- CN116546682A CN116546682A CN202310722936.4A CN202310722936A CN116546682A CN 116546682 A CN116546682 A CN 116546682A CN 202310722936 A CN202310722936 A CN 202310722936A CN 116546682 A CN116546682 A CN 116546682A
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- H—ELECTRICITY
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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Abstract
The application relates to the technical field of intelligent household appliances and discloses an induction cooker resonant power control method and device and an induction cooker. The method comprises the following steps: detecting an adjustment signal; controlling the opening width of the high-frequency switching device according to the regulating signal, so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated; and in the working period of the induction cooker, controlling the on of each resonant circuit according to the regulating signal, so that the ratio of the on time of each resonant circuit and the ratio of the resonant power of each resonant circuit are positively correlated. According to the embodiment of the application, the complexity of the electric control structure of the multi-burner electromagnetic oven can be reduced.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to an induction cooker resonant power control method and device and an induction cooker.
Background
The induction cooker is a common cooking appliance for people, and the multi-burner induction cooker comprises a plurality of burners, so that a plurality of dishes can be cooked at the same time, and the cooking time is greatly shortened.
In the prior art, the multi-burner induction cooker adopts the design that the burner corresponds to one set of electric control structure respectively, for example, the double-burner induction cooker is designed with two sets of independent electric control structures, or adopts the design that one set of electric control structure with a plurality of groups of control branches, and the burner corresponds to one group of driving branches respectively.
However, the number of electric control structures required for the former increases with the number of burners, and the latter requires a high-frequency switching device (e.g., IGBT device) for each group of driving branches, both of which require a high-frequency switching device, and all suffer from the disadvantage of complicated electric control structures.
Disclosure of Invention
The purpose of the application is to provide a method and a device for controlling resonance power of an induction cooker and the induction cooker, and aims to overcome the defect that a plurality of high-frequency switching devices are required to be arranged on the induction cooker with a multi-burner in the prior art, and the electric control structure is complex.
The embodiment of the application provides a resonance power control method of an induction cooker, wherein an electric control structure of the induction cooker comprises at least two groups of resonance circuits, and each resonance circuit and the same high-frequency switching device form a loop;
the induction cooker resonance power control method comprises the following steps:
detecting an adjusting signal, wherein the adjusting signal is used for setting the resonance power of the resonance circuit;
controlling the opening width of the high-frequency switching device according to the adjusting signal, so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated;
and in the working period of the induction cooker, controlling the opening of each resonant circuit according to the regulating signal, so that the ratio of the opening duration of each resonant circuit and the ratio of the resonant power of each resonant circuit are positively correlated.
Preferably, the controlling the opening of each resonant circuit according to the adjustment signal includes:
and in a plurality of first periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each first period.
Preferably, the controlling the opening of each resonant circuit according to the adjustment signal includes:
and in a plurality of second periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the resonant circuits to be alternately opened in each second period for the set opening duration.
Preferably, the controlling the opening of each resonant circuit according to the adjustment signal includes:
and in a plurality of third periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each third period, wherein the opening duration of each resonant circuit between two adjacent third periods is the same as the interval duration between two adjacent opening times of each resonant circuit between two adjacent third periods.
Preferably, the controlling the opening of each resonant circuit according to the adjustment signal includes:
and in a plurality of fourth periods, setting the opening width of each resonant circuit when each resonant circuit is opened according to the regulating signals, controlling the opening width of each resonant circuit which is set by opening the resonant circuit in the same opening time length in each fourth period, wherein the resonant power of the resonant circuit is positively correlated with the opening width of each resonant circuit when each resonant circuit is opened.
Preferably, the resonance power of the resonance circuit is positively correlated with the turn-on width of the resonance circuit at each turn-on.
The embodiment of the application also provides an electromagnetic oven resonant power control device, wherein the electric control structure of the electromagnetic oven comprises at least two groups of resonant circuits, and each resonant circuit and the same high-frequency switching device form a loop;
the induction cooker resonance power control device comprises:
the first module is used for detecting an adjusting signal, and the adjusting signal is used for setting the resonance power of the resonance circuit;
the second module is used for controlling the opening width of the high-frequency switching device according to the adjusting signal so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated;
and the third module is used for controlling the opening of each resonant circuit according to the adjusting signal in the working period of the induction cooker so that the ratio of the opening duration of each resonant circuit and the ratio of the resonant power are positively correlated.
The embodiment of the application also provides an induction cooker, which comprises the induction cooker resonant power control device.
The embodiment of the application also provides electronic equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the induction cooker resonance power control method when executing the computer program.
Embodiments of the present application also provide a computer readable storage medium storing a computer program, where the computer program when executed by a processor implements the method for controlling resonant power of an induction cooker according to any one of the above.
The beneficial effects of this application: the method comprises the steps of simultaneously driving a plurality of driving branches by using one high-frequency switching device, controlling the opening width of the high-frequency switching device according to the total resonance power, enabling the total resonance power to be positively correlated with the opening width of the high-frequency switching device so as to adapt to the total resonance power, controlling each opening resonance circuit to be opened according to the resonance power of each opening resonance circuit, enabling the ratio of the opening duration of each opening resonance circuit to be equal to the ratio of the resonance power of each opening resonance circuit, distributing the total output power of the induction cooker to each opening resonance circuit according to the requirement, and realizing power distribution by controlling the opening time of each resonance circuit, so that the simultaneous heating of a plurality of burners is realized, and the complexity of an electric control structure of the induction cooker with the burner is reduced without arranging a plurality of independent electric control structures or independently configuring the high-frequency switching device for each driving branch.
Drawings
Fig. 1 is a flowchart of a method for controlling resonant power of an induction cooker according to an embodiment of the present application.
Fig. 2 is a schematic structural view of an electric control structure of the induction cooker.
Fig. 3 is a waveform diagram of the first embodiment for controlling the resonant circuit to be turned on.
Fig. 4 is a waveform diagram of controlling the turn-on of the resonant circuit provided by the second embodiment.
Fig. 5 is a waveform diagram of controlling the turn-on of the resonant circuit according to the third embodiment.
Fig. 6 is a waveform diagram of controlling the turn-on of the resonant circuit provided by the fourth embodiment.
Fig. 7 is a schematic structural diagram of an induction cooker resonant power control device according to an embodiment of the present application.
Fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It should be noted that although functional block division is performed in a device diagram and a logic sequence is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.
In the related art, there are two designs of the induction cooker with multiple heads, the first is that multiple induction heating heads (for example, two heads, three heads and four heads) are respectively configured with a set of independent electric control structures, the number of the electric control structures to be matched increases with the increase of the number of heads, and the second is that one set of electromagnetic wave generator is used in one chip, a plurality of sets of driving branches are adopted, the multiple induction heating heads are respectively configured with a set of driving branches, and each set of driving branches is provided with a high-frequency switching device (for example, an IGBT device), for example, a multi-head induction cooker disclosed in chinese patent No. CN213818242U and a control circuit thereof.
It can be seen that both designs have the defect of complex electric control structure. The first is that the number of electric control structures is increased along with the increase of the number of the furnace heads, the layout difficulty is high, the internal space of the induction cooker is compact, the interval between the resonant circuits of two adjacent sets of electric control structures is too close, so that larger noise can be generated when two heating furnace heads work simultaneously, the specification of a power supply lead or a power supply plug limits the maximum power of the induction cooker, but in order to ensure that the heating power of a single furnace head is not too low, the design power of each furnace head needs to be left with enough allowance, the power specification of an electronic device selected by the electric control structure of each furnace head is higher, and the cost is increased. The second is that each group of driving branches needs to be provided with a high-frequency switching device, synchronous control is needed to start vibration, a plurality of sets of synchronous circuits are also arranged in a circuit switched by the high-frequency switching device, and the high-frequency switching device is also needed to be switched and controlled, so that the control logic and the circuit structure are complex.
Based on this, the embodiment of the application provides an induction cooker resonance power control method, an induction cooker resonance power control device and an induction cooker, wherein a single high-frequency switching device is used for driving a plurality of resonance circuits simultaneously, and power distribution is realized by controlling the on time of each resonance circuit so as to realize simultaneous heating of a plurality of burners, and the defects that the induction cooker with the plurality of burners needs to be provided with the high-frequency switching device and has a complex electric control structure are overcome.
The method and device for controlling the resonance power of the induction cooker and the induction cooker provided by the embodiment of the application are specifically described through the following embodiments, and the method for controlling the resonance power of the induction cooker in the embodiment of the application is described first.
Fig. 1 is an optional flowchart of a method for controlling resonant power of an induction cooker according to an embodiment of the present application, where the method in fig. 1 may include, but is not limited to, steps S101 to S103.
Step S101, detecting an adjustment signal.
Wherein the adjusting signal is used for setting the resonance power of the resonance circuit.
Step S102, controlling the opening width of the high-frequency switching device according to the adjusting signal, so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated.
Step S103, in the working period of the induction cooker, controlling the opening of each resonant circuit according to the regulating signal, so that the ratio of the opening duration of each resonant circuit and the ratio of the resonant power of each resonant circuit are positively correlated.
As shown in FIG. 2, the electric control structure of the induction cooker comprises at least two groups of resonant circuits, and each resonant circuit and the same high-frequency switching device form a loop respectively.
Specifically, each resonant circuit is connected in parallel, and comprises at least a coil disc, a resonant capacitor and a low-frequency electronic switch, wherein one end of the resonant circuit is used for being connected with an external direct-current power supply, the other end of the resonant circuit is connected with a high-frequency switching device, and each resonant circuit shares the same high-frequency switching device and forms a loop with the high-frequency switching device. The low-frequency electronic switch is controlled to control the on-off of the resonant circuit, when the resonant circuit is switched on, an external direct-current power supply is connected and a high-frequency alternating-current electromagnetic field is generated, the high-frequency switching device generates high-frequency (more than about 20 KHz) high-power switching energy to drive the resonant circuit to generate high-frequency resonant electromagnetic waves, electromagnetic vortex heating is generated on the heating vessel, so that the magnetic material on the furnace surface generates vortex heat, and the furnace surface generates heat.
It will be appreciated that for a passive port network comprising capacitive and inductive and resistive elements, the ports may exhibit capacitive, inductive and resistive properties, and that when the voltage and current at the ports of the circuit are in phase, the circuit is resistive and is referred to as a resonant phenomenon, such a circuit is referred to as a resonant circuit. The essence of resonance is that the electric field energy in the capacitor and the magnetic field energy in the inductor are mutually converted, and the increase and decrease are fully compensated. The sum of the electric field energy and the magnetic field energy is kept unchanged at all times, and the power supply does not need to convert energy back and forth with a capacitor or an inductor, and only needs to supply the electric energy consumed by a resistor in the circuit.
In this embodiment, the high-frequency switching device is an IGBT device. The IGBT device (Insulated Gate Bipolar Transistor) is an insulated gate bipolar Transistor, is a compound full-control voltage-driven power semiconductor device consisting of a (Bipolar Junction Transistor, BJT) bipolar triode and an insulated gate field effect Transistor (Metal Oxide Semiconductor, MOS), and has the advantages of high input impedance of a (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) Metal Oxide semiconductor field effect Transistor and low on-state voltage drop of a power Transistor (Giant Transistor, GTR). The GTR saturation voltage is reduced, the current carrying density is high, but the driving current is high; the MOSFET has small driving power, high switching speed, large conduction voltage drop and small current carrying density. The IGBT device combines the advantages of the two devices, and has small driving power and reduced saturation voltage.
In step S101, the current resonant circuit to be turned on and the corresponding resonant power are determined by detecting an adjustment signal, where the adjustment signal may be generated by a user through a key on the induction cooker, and the adjustment signal includes control information for triggering the resonant circuit to be turned on and adjustment information for setting the resonant power of the resonant circuit to be turned on, which is used for setting the resonant power of the resonant circuit.
For example, the induction cooker may include a first burner and a second burner, where a user currently needs to cook with the first burner, and the first burner is turned on by a key on the induction cooker and the heating power of the first burner is set to 1000W, so as to generate an adjustment signal of "turning on a resonant circuit corresponding to the first burner and having a resonant power of 1000W". When the induction cooker is in actual use, one group of resonant circuits is firstly turned on by default when the induction cooker is started, and the resonant circuits are provided with oscillating waves by controlling the high-frequency switching device to periodically turn on and off under the triggering of the synchronous signal, and when a user needs to add the heating furnace end, the additional resonant circuits are additionally turned on according to the requirement of the user.
In step S102, the high-frequency switching device is controlled to be turned on according to the control information fed back by the adjustment signal for triggering the on of the resonant circuit and the resonant power adjustment information for setting the on resonant circuit, so that the high-frequency switching device is turned on with a corresponding on width to meet the total power requirement in the operating period of the electromagnetic oven.
Specifically, the number of the opened resonant circuits and the corresponding resonant power are determined according to the adjusting signal, and then the total resonant power (namely the sum of the resonant power of each resonant circuit) is calculated, the opening width of the high-frequency switching device is controlled according to the total resonant power, the larger the total resonant power is, the larger the opening width of the high-frequency switching device is, otherwise, the smaller the total resonant power is, the smaller the opening width of the high-frequency switching device is, the opened high-frequency switching device is periodically opened and closed under the triggering of the synchronizing signal, and an oscillating wave is provided for each opened resonant circuit so as to adapt to the resonant power required to be output by the adjusting signal.
In step S103, in the working period of the induction cooker, by controlling the on time of each on resonant circuit, the ratio of the on time of each resonant circuit and the ratio of the resonant power of each resonant circuit are positively correlated, so as to realize the resonant power distribution when at least two resonant circuits are simultaneously on.
Specifically, the opening condition of each resonant circuit is determined according to the adjusting signals, the opening time of each resonant circuit in the working period of the induction cooker is distributed according to the number of each resonant circuit which is opened and the corresponding resonant power, so that the opening time of each resonant circuit is positively correlated with the resonant power of the resonant circuit, the ratio of the opening time of each resonant circuit is positively correlated with the ratio of the resonant power of each resonant circuit, and the total resonant power is equal to the total output power of the induction cooker.
Preferably, the ratio of the on-periods of the respective resonance circuits is equal to the ratio of the resonance powers of the respective resonance circuits.
For example, the induction cooker may include a first burner and a second burner, where a user currently needs to use the first burner and the second burner to cook simultaneously, and when the induction cooker is turned on and heated, a ratio of an on time of the first burner to an on time of the second burner is 2/1 and a current total output power of the induction cooker is 1500W by turning on a key on the induction cooker and setting a heating power of the first burner to 1000W and a heating power of the second burner to 500W.
In the steps S101 to S103 illustrated in the embodiments of the present application, a high-frequency switching device is used to drive multiple driving branches simultaneously, and the turning-on of the high-frequency switching device is controlled according to the total resonant power, so that the total resonant power is positively correlated with the turning-on width of the high-frequency switching device, so as to adapt to the total resonant power, and the turning-on time of each turned-on resonant circuit is controlled according to the resonant power of each turned-on resonant circuit, so that the ratio of the turning-on duration of each turned-on resonant circuit is equal to the ratio of the resonant powers of each turned-on resonant circuit, so that the total output power of the induction cooker is distributed to each turned-on resonant circuit according to the requirement, and the power distribution is realized by controlling the turning-on time of each resonant circuit, so that the simultaneous heating of multiple furnace heads is realized, and the complexity of the electric control structure of the multiple furnace heads is reduced without setting multiple sets of independent electric control structures or independently configuring the high-frequency switching devices for each driving branch.
The specific technical scheme of step S103 in the embodiment of the present application is described in detail below.
In the first embodiment, the specific control manner in step S103 is as follows: and in a plurality of first periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each first period.
In this embodiment, the operating period of the induction cooker is divided into a plurality of first periods by determining each of the opened resonant circuits and the resonant power thereof according to the adjustment signal.
In the first period, the opening duration of each opened resonant circuit is set according to the corresponding resonant power and the opening width of the high-frequency switching device, so that the opening duration of the resonant circuit is positively correlated with the resonant power of the resonant circuit, the ratio of the opening duration of each resonant circuit is positively correlated with the ratio of the resonant power of each resonant circuit, the total resonant power is equal to the total output power of the induction cooker, each resonant circuit is controlled to be opened in any period in each first period, and the opening duration is set.
Referring to fig. 3, taking a dual-burner induction cooker as an example, the working period of the induction cooker is divided into a plurality of first periods, the time duration of the first periods is equal to the time duration of the H direct current pulse waves, when the first burner and the second burner are simultaneously turned on and the power of the first burner is greater than the power of the second burner, the first resonance power (i.e. the resonance power of the resonance circuit of the first burner and the same below) is greater than the second resonance power (i.e. the resonance power of the resonance circuit of the second burner and the same below), the ratio of the two is M/N, the time duration of the first resonance circuit turning on the M direct current pulse waves in the first period, and the second resonance circuit turns on the time duration of the N direct current pulse waves in the first period. Wherein M is more than 1 and less than or equal to H, and N is more than 1 and less than or equal to H.
In this embodiment, each resonant circuit may be turned on in any period of the first period, and the on duration is the set on duration. For example, the first resonant circuit may be a length of time for which M direct current ripple waves are continuously turned on at the beginning of the first period, and the second resonant circuit may be a length of time for which N direct current ripple waves are continuously turned on at the beginning of the first period. For another example, the first resonant circuit may be a time length for which M direct current ripple waves are turned on at intervals in an arbitrary period of the first period, and the second resonant circuit may be a time length for which N direct current ripple waves are turned on at intervals in an arbitrary period of the first period.
In the second embodiment, the specific control manner in step S103 is as follows: and in a plurality of second periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the resonant circuits to be alternately opened in each second period for the set opening duration.
In this embodiment, the operating period of the induction cooker is divided into a plurality of second periods by determining each of the opened resonant circuits and the resonant power thereof according to the adjustment signal.
In the second period, the on-time of each on-resonance circuit is set according to the corresponding resonance power and the on-width of the high-frequency switching device, so that the on-time of the resonance circuit is positively correlated with the resonance power of the resonance circuit, the on-time ratio of each resonance circuit is positively correlated with the resonance power ratio of each resonance circuit, the total resonance power is equal to the total output power of the induction cooker, each resonance circuit is controlled to be alternately on in any period in each second period, and the on-time is set to be the on-time.
Referring to fig. 4, taking a dual-burner induction cooker as an example, the working period of the induction cooker is divided into a plurality of second periods, the time duration of the second periods is equal to the time duration of the H direct current pulse waves, when the first burner and the second burner are simultaneously turned on and the power of the first burner is greater than the power of the second burner, i.e. the first resonant power is greater than the second resonant power, the ratio of the first resonant power to the second resonant power is M/N, the first resonant circuit turns on the time duration of the M direct current pulse waves in the second period, the second resonant circuit turns on the time duration of the N direct current pulse waves in the non-on period of the first resonant circuit in the second period, the first resonant power is M/(m+n) of the total power, and the second resonant power is N/(m+n) of the total power, m+n is equal to or less than H.
In this embodiment, each resonant circuit is alternately turned on in any period of each second period, and the on duration is the set on duration. For example, the first resonant circuit may be a time length for continuously turning on M dc ripple waves before the end of the second period, and the second resonant circuit may be a time length for continuously turning on N dc ripple waves at the beginning of the second period, so that the turn-on times of the first resonant circuit and the second resonant circuit are staggered, and the first resonant circuit and the second resonant circuit are alternately turned on in the second period. For another example, the first resonant circuit may be a time length for which M direct current ripple waves are turned on at intervals in an arbitrary period of the second period, and the second resonant circuit may be a time length for which N direct current ripple waves are turned on at intervals in a non-on period of the first resonant circuit in the second period.
In the third embodiment, the specific control manner of step S103 is as follows: and in a plurality of third periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each third period, wherein the opening duration of each resonant circuit between two adjacent third periods is the same as the interval duration between two adjacent opening times of each resonant circuit between two adjacent third periods.
In this embodiment, the operating period of the induction cooker is divided into a plurality of third periods by determining each of the opened resonant circuits and the resonant power thereof according to the adjustment signal.
In the third period, the opening time length of each opened resonant circuit is set according to the corresponding resonant power and the opening width of the high-frequency switching device, so that the opening time length of the resonant circuit is positively correlated with the resonant power of the resonant circuit, the ratio of the opening time length of each resonant circuit is positively correlated with the ratio of the resonant power of each resonant circuit, the total resonant power is equal to the total output power of the induction cooker, each resonant circuit is controlled to be opened at intervals in any period in each third period, the interval time length between two adjacent third periods is the same, and the opening time length is the set opening time length.
Referring to fig. 5, taking a dual-burner induction cooker as an example, the working period of the induction cooker is divided into a plurality of third periods, the time duration of the third periods is equal to the time duration of the H direct current pulse waves, when the first burner and the second burner are simultaneously turned on and the power of the first burner is greater than that of the second burner, i.e. the first resonance power is greater than the second resonance power, the ratio of the first resonance power to the second resonance power is M/N, the first resonance circuit turns on the time duration of the M direct current pulse waves in the third period, the second resonance circuit turns on the time duration of the N direct current pulse waves at first when the third period starts, and turns on the time duration of the N direct current pulse waves when the third period ends. Wherein M is more than 1 and less than H, and N is more than 1 and less than H.
In this embodiment, the interval duration between two adjacent third periods is the same between two adjacent turns on of each resonant circuit. For example, the first resonant circuit may be a time length for continuously turning on M dc ripple waves at the beginning of the third period, a time length for turning off H-M dc ripple waves before the end of the third period, a time length for spacing H-M dc ripple waves between two adjacent turns on of the first resonant circuit between two adjacent third periods, and the second resonant circuit may be a time length for continuously turning on N-N (N < N) dc ripple waves at the beginning of the third period, a time length for continuously turning on N dc ripple waves before the end of the third period, and a time length for spacing H-N dc ripple waves between two adjacent turns on of the second resonant circuit between two adjacent third periods. For another example, the first resonant circuit may be turned on at intervals when the third period starts, the time periods of the first turn-on and the last turn-on in the third period are the time lengths of M direct current pulse waves, the time lengths of H-M direct current pulse waves are spaced between two adjacent turns of the first resonant circuit between two adjacent third periods, the time periods of the first turn-on and the last turn-on in the two intervals are the time lengths of N-N (N < N) direct current pulse waves and the time lengths of N direct current pulse waves respectively when the third period starts and before the third period ends, and the time lengths of 0 direct current pulse waves are spaced between two adjacent turns of the second resonant circuit between two adjacent third periods.
In the fourth embodiment, the specific control manner of step S103 is as follows: and in a plurality of fourth periods, setting the opening width of each resonant circuit when each resonant circuit is opened according to the regulating signals, and controlling the set opening width of each resonant circuit to be opened in the same opening duration in each fourth period. The resonant power of the resonant circuit is positively correlated with the opening width of the resonant circuit when the resonant circuit is opened each time.
In this embodiment, the operating period of the induction cooker is divided into a plurality of fourth periods by determining each of the opened resonant circuits and the resonant power thereof according to the adjustment signal.
In the fourth period, the opening duration of each opened resonant circuit is set according to the corresponding resonant power and the opening width of the high-frequency switching device, so that the opening duration of the resonant circuit is positively correlated with the resonant power of the resonant circuit, the ratio of the opening duration of each resonant circuit is positively correlated with the ratio of the resonant power of each resonant circuit, the total resonant power is equal to the total output power of the induction cooker, the set opening width of each resonant circuit is controlled to be opened in the same opening duration in each fourth period, and the opening duration is set.
Referring to fig. 6, taking a dual-burner induction cooker as an example, the working period of the induction cooker is divided into a plurality of fourth periods, the time duration of the fourth periods is equal to the time duration of the H direct current pulse waves, when the first burner and the second burner are simultaneously turned on and the power of the first burner is greater than the power of the second burner, that is, the first resonant power is greater than the second resonant power, the first resonant circuit and the second resonant circuit both turn on the time duration of the M direct current pulse waves in the fourth periods, in the same fourth period, the turn-on width of the first resonant circuit is T when the first resonant circuit is turned on M times in the time duration of the M direct current pulse waves, the total turn-on time is T when the second resonant circuit is turned on M times in the time duration of the M direct current pulse waves, and the total turn-on time is T. Wherein, when T is less than or equal to H and T is less than or equal to T/2, the ratio of the first resonant power to the second resonant power is 1/2sin (2 pi T/T), and when T is more than T/2, the ratio of the first resonant power to the second resonant power is 1/2 (1-sin (2 pi T/T)).
Further, on the basis of the above-mentioned first to third embodiments related to the step S103, the resonant power of the resonant circuit is positively correlated with the turn-on width of each turn-on of the resonant circuit, and the setting manner of the turn-on width of each turn-on resonant circuit may refer to the above-mentioned fourth embodiment related to the step S103, which is not described herein again.
Referring to fig. 7, the embodiment of the present application further provides an apparatus for controlling resonant power of an induction cooker, which may implement a method for controlling resonant power of an induction cooker, where the apparatus includes:
a first module 701, configured to detect an adjustment signal, where the adjustment signal is used to set a resonant power of the resonant circuit;
a second module 702, configured to control an on width of the high-frequency switching device according to the adjustment signal, so that a resonance power of the resonance circuit and the on width of the high-frequency switching device are positively correlated;
and a third module 703, configured to control, during an operating period of the induction cooker, each resonant circuit to be turned on according to the adjustment signal, so that a ratio of on periods of each resonant circuit is equal to a ratio of resonant powers.
The electric control structure of the induction cooker comprises at least two groups of resonant circuits, and each resonant circuit and the same high-frequency switching device form a loop.
The specific implementation of the induction cooker resonance power control device is basically the same as the specific embodiment of the induction cooker resonance power control method, and is not repeated here.
The embodiment of the application also provides an induction cooker, which comprises the induction cooker resonant power control device.
The embodiment of the application also provides electronic equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the induction cooker resonance power control method when executing the computer program. The electronic equipment can be any intelligent terminal including a tablet personal computer, a vehicle-mounted computer and the like.
Referring to fig. 8, fig. 8 illustrates a hardware structure of an electronic device according to another embodiment, the electronic device includes:
the processor 801 may be implemented by a general-purpose CPU (central processing unit), a microprocessor, an application-specific integrated circuit (ApplicationSpecificIntegratedCircuit, ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided by the embodiments of the present application;
the memory 802 may be implemented in the form of read-only memory (ReadOnlyMemory, ROM), static storage, dynamic storage, or random access memory (RandomAccessMemory, RAM). The memory 802 may store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present application are implemented by software or firmware, relevant program codes are stored in the memory 802, and the processor 801 invokes an electromagnetic oven resonant power control method for executing the embodiments of the present application;
an input/output interface 803 for implementing information input and output;
the communication interface 804 is configured to implement communication interaction between the device and other devices, and may implement communication in a wired manner (e.g., USB, network cable, etc.), or may implement communication in a wireless manner (e.g., mobile network, WIFI, bluetooth, etc.);
a bus 805 that transfers information between the various components of the device (e.g., the processor 801, the memory 802, the input/output interface 803, and the communication interface 804);
wherein the processor 801, the memory 802, the input/output interface 803, and the communication interface 804 implement communication connection between each other inside the device through a bus 805.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the induction cooker resonance power control method when being executed by a processor.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
According to the method and device for controlling the resonance power of the induction cooker and the induction cooker, the high-frequency switching device is used for driving the plurality of driving branches at the same time, the opening width of the high-frequency switching device is controlled according to the total resonance power, the total resonance power and the opening width of the high-frequency switching device are positively correlated to adapt to the total resonance power, the opening of each opening resonance circuit is controlled according to the resonance power of each opening resonance circuit, the ratio of the opening duration of each opening resonance circuit is equal to the ratio of the resonance power of each opening resonance circuit, so that the total output power of the induction cooker is distributed to each opening resonance circuit according to requirements, the power distribution is realized by controlling the opening time of each resonance circuit, the simultaneous heating of a plurality of burners is realized, a plurality of sets of independent electric control structures are not needed, or the high-frequency switching device is independently configured for each driving branch, and the complexity of the electric control structure of the induction cooker is reduced.
The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and as those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
It will be appreciated by those skilled in the art that the technical solutions shown in the figures do not constitute limitations of the embodiments of the present application, and may include more or fewer steps than shown, or may combine certain steps, or different steps.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
The terms "first," "second," "third," "fourth," and the like in the description of the present application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in this application, "at least one" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including multiple instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing a program.
Preferred embodiments of the present application are described above with reference to the accompanying drawings, and thus do not limit the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.
Claims (10)
1. The electromagnetic oven resonant power control method is characterized in that an electric control structure of the electromagnetic oven comprises at least two groups of resonant circuits, and each resonant circuit and the same high-frequency switching device form a loop;
the induction cooker resonance power control method comprises the following steps:
detecting an adjusting signal, wherein the adjusting signal is used for setting the resonance power of the resonance circuit;
controlling the opening width of the high-frequency switching device according to the adjusting signal, so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated;
and in the working period of the induction cooker, controlling the opening of each resonant circuit according to the regulating signal, so that the ratio of the opening duration of each resonant circuit and the ratio of the resonant power of each resonant circuit are positively correlated.
2. The method of claim 1, wherein controlling each of the resonant circuits to be turned on according to the adjustment signal comprises:
and in a plurality of first periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each first period.
3. The method of claim 1, wherein controlling each of the resonant circuits to be turned on according to the adjustment signal comprises:
and in a plurality of second periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the resonant circuits to be alternately opened in each second period for the set opening duration.
4. The method of claim 1, wherein controlling each of the resonant circuits to be turned on according to the adjustment signal comprises:
and in a plurality of third periods, setting the opening duration of the resonant circuits according to the regulating signals, and controlling the opening duration of each resonant circuit in each third period, wherein the opening duration of each resonant circuit between two adjacent third periods is the same as the interval duration between two adjacent opening times of each resonant circuit between two adjacent third periods.
5. The method of claim 1, wherein controlling each of the resonant circuits to be turned on according to the adjustment signal comprises:
and in a plurality of fourth periods, setting the opening width of each resonant circuit when each resonant circuit is opened according to the regulating signals, controlling the opening width of each resonant circuit which is set by opening the resonant circuit in the same opening time length in each fourth period, wherein the resonant power of the resonant circuit is positively correlated with the opening width of each resonant circuit when each resonant circuit is opened.
6. The method according to any one of claims 2 to 4, wherein the resonance power of the resonance circuit is positively correlated with the turn-on width of the resonance circuit at each turn-on.
7. The electromagnetic oven resonant power control device is characterized in that an electric control structure of the electromagnetic oven comprises at least two groups of resonant circuits, and each resonant circuit and the same high-frequency switching device form a loop;
the induction cooker resonance power control device comprises:
the first module is used for detecting an adjusting signal, and the adjusting signal is used for setting the resonance power of the resonance circuit;
the second module is used for controlling the opening width of the high-frequency switching device according to the adjusting signal so that the resonance power of the resonance circuit and the opening width of the high-frequency switching device are positively correlated;
and the third module is used for controlling the opening of each resonant circuit according to the adjusting signal in the working period of the induction cooker so that the ratio of the opening duration of each resonant circuit and the ratio of the resonant power are positively correlated.
8. An induction cooker comprising the induction cooker resonant power control device of claim 7.
9. An electronic device comprising a memory storing a computer program and a processor implementing the induction cooker resonant power control method of any one of claims 1 to 6 when the computer program is executed by the processor.
10. A computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the induction cooker resonance power control method of any one of claims 1 to 6.
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| CN102647104A (en) * | 2012-04-13 | 2012-08-22 | 美的集团有限公司 | Power control device and control method of half-bridge resonant circuit |
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