CN111615230A - Control method and device for microwave household appliance, microwave household appliance and electronic equipment - Google Patents
Control method and device for microwave household appliance, microwave household appliance and electronic equipment Download PDFInfo
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- CN111615230A CN111615230A CN202010404307.3A CN202010404307A CN111615230A CN 111615230 A CN111615230 A CN 111615230A CN 202010404307 A CN202010404307 A CN 202010404307A CN 111615230 A CN111615230 A CN 111615230A
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- magnetron
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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
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
- H05B6/681—Circuits comprising an inverter, a boost transformer and a magnetron
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
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Abstract
The invention discloses a control method and device for a microwave household appliance, the microwave household appliance and electronic equipment. The control method comprises the following steps: acquiring a first vibration duration of a magnetron in a microwave household appliance in a current working cycle; recognizing that the first vibration time length reaches a first preset time length, controlling the magnetron to stop vibrating for a second preset time length; and controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process of stopping the vibration of the magnetron in the current working period. The control method of the embodiment of the invention controls the magnetron to be in an intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process of stopping the vibration of the magnetron in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a method and a device for controlling a microwave household appliance, the microwave household appliance, electronic equipment and a computer readable storage medium.
Background
At present, a WiFi communication technology is widely applied in a microwave oven, however, the working frequency of a magnetron in the microwave oven is consistent with the WiFi communication frequency, and both the working frequency and the WiFi communication frequency are 2.45GHz, so weak leakage waves generated when the magnetron works easily interfere with WiFi communication, so that WiFi cannot receive accurate information, and WiFi communication errors occur, and therefore a method for more accurate WiFi communication in the microwave oven needs to be researched.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above.
Therefore, an object of the present invention is to provide a method for controlling a microwave home appliance, which controls a magnetron to be in an intermittent vibration state in a working period, so that WiFi communication is not interfered by the magnetron in a process that the magnetron stops vibrating in the working period, and accuracy and stability of WiFi communication in the microwave home appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
The second purpose of the invention is to provide a control device of microwave household appliances.
The third purpose of the invention is to provide a microwave household appliance.
A fourth object of the invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer-readable storage medium.
In order to achieve the above object, a first embodiment of the present invention provides a method for controlling a microwave appliance, including the following steps: acquiring a first vibration duration of a magnetron in a microwave household appliance in a current working cycle; recognizing that the first vibration time length reaches a first preset time length, controlling the magnetron to stop vibrating for a second preset time length; and controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process of stopping the vibration of the magnetron in the current working period.
According to the control method of the microwave household appliance, the magnetron is controlled to be in the intermittent vibration state in the working period, so that WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In addition, the method for controlling a microwave home appliance according to the above embodiment of the present invention may further have the following additional technical features:
in one embodiment of the present invention, the controlling the magnetron to stop vibrating includes: and controlling the frequency converter to provide a critical voltage lower than the critical voltage required by the vibration of the magnetron to the magnetron.
In one embodiment of the present invention, the controlling the frequency converter to provide the magnetron with a voltage lower than a critical voltage required for the magnetron to vibrate includes: and sending a first driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the first driving signal, wherein the first driving signal carries a first conduction time length of the transistor, and the first conduction time length is less than the conduction time length required by the working voltage of the magnetron reaching the critical voltage.
In an embodiment of the present invention, after controlling the frequency converter in the microwave appliance to continue to supply the filament current to the magnetron, the method further includes: and identifying that the microwave household appliance enters the next working cycle, sending a second driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the second driving signal, wherein the second conduction time of the transistor is carried in the second driving signal and is more than or equal to the conduction time required by the critical voltage when the working voltage of the magnetron reaches.
In an embodiment of the present invention, the method for controlling a microwave appliance further includes: detecting the input voltage and the input current of the frequency converter in the process of the vibration of the magnetron; adjusting the second on-time of the transistor in the second driving signal according to the input voltage and the input current.
In an embodiment of the present invention, the method for controlling a microwave appliance further includes: and controlling the microwave household appliance to detect a first WiFi signal in each work period.
In an embodiment of the present invention, the method for controlling a microwave appliance further includes: and identifying that the microwave household appliance needs to transmit a second WiFi signal, and transmitting the second WiFi signal outwards in the process that the magnetron stops vibrating in the current working period.
In order to achieve the above object, a second embodiment of the present invention provides a control device for a microwave home appliance, including: the acquisition module is used for acquiring a first vibration duration of a magnetron in the microwave household appliance in the current working cycle; and the control module is used for identifying that the first vibration time length reaches a first preset time length, controlling the magnetron to stop vibrating, and controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process of stopping vibrating the magnetron in the current working period.
The control device of the microwave household appliance controls the magnetron to be in an intermittent vibration state in the working period, so that WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In addition, the control device for a microwave home appliance according to the above embodiment of the present invention may further have the following additional technical features:
in an embodiment of the present invention, the control module is specifically configured to: and controlling the frequency converter to provide a critical voltage lower than the critical voltage required by the vibration of the magnetron to the magnetron.
In an embodiment of the present invention, the control module is specifically configured to: and sending a first driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the first driving signal, wherein the first driving signal carries a first conduction time length of the transistor, and the first conduction time length is less than the conduction time length required by the working voltage of the magnetron reaching the critical voltage.
In an embodiment of the present invention, the control module is specifically configured to: after controlling a frequency converter in the microwave household appliance to continuously provide filament current for a magnetron, identifying that the microwave household appliance enters the next working period, sending a second driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the second driving signal, wherein the second driving signal carries the second conduction time of the transistor, and the second conduction time is longer than or equal to the conduction time required by the critical voltage when the working voltage of the magnetron reaches the critical voltage.
In an embodiment of the present invention, the control module is specifically configured to: detecting the input voltage and the input current of the frequency converter in the process of the vibration of the magnetron; adjusting the second on-time of the transistor in the second driving signal according to the input voltage and the input current.
In an embodiment of the present invention, the control module is further configured to: and controlling the microwave household appliance to detect a first WiFi signal in each work period.
In an embodiment of the present invention, the control module is further configured to: and identifying that the microwave household appliance needs to transmit a second WiFi signal, and transmitting the second WiFi signal outwards in the process that the magnetron stops vibrating in the current working period.
In order to achieve the above object, a third aspect of the present invention provides a microwave home appliance, including a control device of the microwave home appliance according to the second aspect of the present invention.
According to the microwave household appliance, the magnetron is controlled to be in the intermittent vibration state in the working period, so that WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In addition, the microwave home appliance provided by the above embodiment of the present invention may further have the following additional technical features:
in one embodiment of the present invention, the microwave appliance is a variable frequency microwave appliance.
In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, including a memory, a processor; the processor reads the executable program code stored in the memory to run the program corresponding to the executable program code, so as to implement the method for controlling the microwave home appliance according to the embodiment of the first aspect of the present invention.
According to the electronic equipment provided by the embodiment of the invention, the processor executes the computer program stored on the memory to control the magnetron to be in the intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In order to achieve the above object, a fifth embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer-readable storage medium implements the method for controlling a microwave appliance according to the first embodiment of the present invention.
The computer readable storage medium of the embodiment of the invention stores the computer program and is executed by the processor, and controls the magnetron to be in an intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process of stopping the vibration of the magnetron in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of a microwave home appliance according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling a microwave home appliance according to another embodiment of the present invention;
fig. 3 is a circuit diagram of a control circuit of a microwave appliance according to an embodiment of the present invention.
FIG. 4a is a schematic diagram of anode current and anode voltage of a magnetron of a microwave appliance according to an embodiment of the present invention;
FIG. 4b is a schematic diagram of the anode current and driving waveform of a magnetron of a microwave appliance according to an embodiment of the present invention;
FIG. 4c is an enlarged partial view of the area T1 in FIG. 4 b;
FIG. 4d is an enlarged partial view of the area T2 in FIG. 4 b;
fig. 5 is a block diagram illustrating a control apparatus of a microwave home appliance according to an embodiment of the present invention;
fig. 6 is a block diagram of a microwave appliance according to an embodiment of the present invention; and
FIG. 7 is a block diagram of an electronic device according to one embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A method and an apparatus for controlling a microwave appliance, an electronic device, and a computer-readable storage medium according to embodiments of the present application are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for controlling a microwave home appliance according to an embodiment of the present invention.
As shown in fig. 1, the method for controlling a microwave appliance according to an embodiment of the present invention includes the following steps:
s101, acquiring a first vibration duration of a magnetron in the microwave household appliance in the current working cycle.
S102, identifying that the first vibration time length reaches a first preset time length, and controlling the magnetron to stop vibrating for a second preset time length.
In one embodiment of the present invention, a duty cycle may be pre-calibrated for a magnetron in a microwave appliance, and each duty cycle may consist of a first preset duration and a second preset duration. The working period, the first preset time and the second preset time can be calibrated according to actual conditions, for example, the first preset time can be calibrated to any value of (0.5-1) s, and the second preset time can be calibrated to 10 ms.
Further, when a magnetron in the microwave household appliance works, the vibration duration of the magnetron in the current working period can be obtained and used as the first vibration duration, then the size relation between the first vibration duration and the first preset duration is identified, if the first vibration duration does not reach the first preset duration, the magnetron is controlled to continuously vibrate, and if the first vibration duration reaches the first preset duration, the magnetron is controlled to stop vibrating for the second preset duration.
It can be understood that, within the first preset time duration in each working cycle of the magnetron, the magnetron is in a vibration state to generate microwaves, and at this time, WiFi communication is interfered by the magnetron, and errors easily occur in WiFi communication. Within a second preset time length in each working period of the magnetron, the magnetron stops vibrating and stops generating microwaves, and at the moment, WiFi communication is not interfered by the magnetron, so that the WiFi communication is accurate and stable.
Therefore, the magnetron is in an intermittent vibration state, WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the current working period, and the WiFi communication is accurate and stable, so that the accuracy and stability of the WiFi communication in the microwave household appliance are improved.
Optionally, if the microwave appliance includes the WiFi communication device, the microwave appliance may be controlled to detect the first WiFi signal in each duty cycle, and if the microwave appliance is identified to need to receive the first WiFi signal, the first WiFi signal may be received. It can be understood that, in the process that the magnetron of the microwave home appliance is in a vibration state, the received first WiFi signal may be interfered by the magnetron, and the reception is prone to errors. When the magnetron stops vibrating, the received first WiFi signal is not interfered by the magnetron, and the receiving is accurate and stable.
In addition, in the process that the magnetron stops vibrating in the current working period, whether the microwave household appliance needs to transmit a second WiFi signal or not can be identified, and if so, the second WiFi signal can be transmitted outwards. It can be understood that, when the microwave household appliance stops vibrating the magnetron, the second WiFi signal emitted outwards is not interfered by the magnetron, and the emission is more accurate and stable.
And S103, controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process that the magnetron stops vibrating in the current working period.
In one embodiment of the invention, in the process of stopping vibration of the magnetron in the current working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In summary, according to the control method of the microwave home appliance in the embodiment of the present invention, the magnetron is controlled to be in the intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and stability of the WiFi communication in the microwave home appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
A method for controlling a microwave appliance according to another embodiment of the present invention is described with reference to fig. 2.
As shown in fig. 2, the method for controlling a microwave appliance according to an embodiment of the present invention includes the following steps:
s201, acquiring a first vibration duration of a magnetron in the microwave household appliance in the current working cycle.
S202, identifying that the first vibration duration reaches a first preset duration, and controlling the magnetron to stop vibrating for a second preset duration.
In one embodiment of the invention, controlling the magnetron to stop vibrating may include controlling the frequency converter to provide a voltage to the magnetron below a threshold voltage required for the magnetron to vibrate.
It should be noted that, in the embodiment of the present invention, the voltage of the magnetron is provided by the frequency converter, and if the frequency converter is controlled to provide a voltage lower than the critical voltage required by the vibration of the magnetron to the magnetron, the vibration of the magnetron is stopped because the voltage is too low.
Optionally, controlling the frequency converter to provide the magnetron with a threshold voltage lower than the threshold voltage required for magnetron oscillation may include sending a first drive signal to the frequency converter, and driving the transistor to conduct by the frequency converter according to the first drive signal to provide the magnetron with the voltage.
It should be noted that, in an embodiment of the present invention, the frequency converter may control the voltage provided to the magnetron by controlling the on-time of the transistor. It is understood that the larger the on-time of the transistor, the larger the voltage supplied to the magnetron.
The first drive signal carries the first conduction duration of the transistor, and the first drive signal can be calibrated according to actual conditions.
The first conduction time is shorter than the conduction time required for the working voltage of the magnetron to reach the critical voltage, so that the conduction time of the transistor is the first conduction time, the voltage provided by the frequency converter to the magnetron is lower than the critical voltage required by the vibration of the magnetron, and the magnetron stops vibrating due to too low voltage.
And S203, controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process that the magnetron stops vibrating in the current working period.
And S204, identifying that the microwave household appliance enters the next working cycle, sending a second driving signal to the frequency converter, and driving the transistor to conduct to provide voltage for the magnetron by the frequency converter according to the second driving signal.
In an embodiment of the present invention, when it is recognized that the microwave home appliance enters the next working cycle, the second driving signal may be sent to the frequency converter, and the frequency converter may drive the transistor to be turned on according to the second driving signal to provide a voltage to the magnetron, so that the magnetron may be changed from the stop vibration state to the vibration state, thereby ensuring that the magnetron may normally vibrate when the next working cycle starts, and improving the working stability and reliability of the magnetron.
The second drive signal carries a second on-time of the transistor, and the second drive signal can be calibrated according to actual conditions.
And the second conduction duration is longer than or equal to the conduction duration required by the working voltage of the magnetron reaching the critical voltage, so that the conduction duration of the transistor is the second conduction duration, the voltage provided by the frequency converter to the magnetron is not less than the critical voltage required by the vibration of the magnetron, and the magnetron is changed from the vibration stopping state to the vibration state.
It can be understood that the input voltage and the input current of the frequency converter fluctuate along with the voltage of the power grid, and in order to ensure the stability of the voltage and the current provided by the frequency converter to the magnetron, the input voltage and the input current of the frequency converter can be detected during the vibration of the magnetron, and then the second on-time of the transistor in the second driving signal is adjusted in real time according to the input voltage and the input current of the frequency converter, so that the stability of the working voltage and the working current of the magnetron and the stability of the output power of the magnetron can be ensured.
It should be noted that, for details not disclosed in the method for controlling a microwave appliance according to the embodiment of the present invention, please refer to details disclosed in the above embodiments of the present invention, which are not described herein again.
In summary, according to the control method of the microwave home appliance in the embodiment of the present invention, when it is identified that the microwave home appliance enters the next working cycle, the second driving signal may be sent to the frequency converter, and the frequency converter may drive the transistor according to the second driving signal to conduct the voltage to the magnetron, so that the magnetron may be changed from the stop vibration state to the vibration state, thereby ensuring that the magnetron may normally vibrate when the next working cycle starts, and improving the working stability and reliability of the magnetron.
Fig. 3 is a circuit diagram of a control circuit of a microwave appliance according to an embodiment of the present invention.
As shown in fig. 3, the control circuit 100 of the microwave home appliance includes a commercial power input terminal 10, a rectifying unit 11, a rectifying and filtering unit 12, a frequency converter 13, a voltage-doubling rectifying unit 14, a voltage detecting unit 15, a current detecting unit 16, a control unit 17, and a magnetron 18.
The commercial power input end 10 is used for receiving an alternating current power supply; the input end of the rectifying unit 11 is connected with the mains supply input end 10; the input end of the rectifying and filtering unit 12 is connected with the mains supply input end 10; the input end of the frequency converter 13 is connected with the output end of the rectifying and filtering unit 12; the input end of the voltage-doubling rectifying unit 14 is connected with the output end of the frequency converter 13; the input end of the voltage detection unit 15 is connected with the output end of the rectification unit 11; the input end of the current detection unit 16 is connected with two end points of the resistor R1; the input end of the control unit 17 is connected with the output end of the voltage detection unit 15 and the output end of the current detection unit 16 respectively, and the output end of the control unit 17 is connected with the input end of the driving unit 131 in the frequency converter 13; an input terminal of the magnetron 18 is connected to an output terminal of the voltage doubler rectification unit 14.
Specifically, the rectifying and filtering unit 12 includes a rectifying bridge 121, a first inductor L1, and a first capacitor C1, and the frequency converter 13 includes a resistor R1, a transistor Q1, a driving unit 131, a resonant capacitor C2, and a transformer 132. The transformer 132 includes a primary coil M1, a secondary coil M2, and a secondary coil M3, two terminals of the primary coil M1 are respectively connected to two terminals of a resonant capacitor C2, one end of the secondary coil M2 is connected to a filament b of the magnetron 18, the other end of the secondary coil M2 is connected to an anode a of the magnetron 18, two terminals of the secondary coil M3 are connected to the voltage-doubling rectifying unit 14, and an output terminal of the voltage-doubling rectifying unit 14 is connected to the anode a of the magnetron 18. It is understood that the filament current and the filament voltage may be supplied to the filament b of the magnetron 18 through the primary coil M1 and the secondary coil M2 of the transformer 132, and the anode current and the anode voltage may be supplied to the anode a of the magnetron 18 through the primary coil M1 and the secondary coil M3 of the transformer 132, and the voltage doubler rectification unit 14.
It should be noted that the control unit 17 may send a driving signal to the driving unit 131, where the driving signal carries a turn-on duration of the transistor Q1, and the driving unit 131 may generate a corresponding driving waveform for turning on the transistor Q1 according to the driving signal, so as to control the turn-on duration of the transistor Q1, so as to adjust the voltage provided to the magnetron 18.
As shown in fig. 4a-4d, the drive waveform for driving transistor Q1 on is in a "high-low" periodic variation, it being understood that transistor Q1 is correspondingly in a continuous variation of "on-off". As shown in fig. 4c, if the duration of the driving waveform at the high level in one period is longer, the on duration of the transistor Q1 in the on state is longer, and at this time, the voltage provided by the frequency converter 13 to the magnetron 18 is larger, and the magnetron 18 is in the vibration state, and has a certain anode current.
As shown in fig. 4d, if the duration of the driving waveform at the high level in one period is short, the on duration of the transistor Q1 in the on state is short, that is, the transistor Q1 is almost always in the off state, at this time, the voltage supplied to the magnetron 18 by the frequency converter 13 is small, the magnetron 18 is in the oscillation stop state due to the too low voltage, and the anode current is 0.
Fig. 5 is a block diagram illustrating a control apparatus of a microwave home appliance according to an embodiment of the present invention.
As shown in fig. 5, the control apparatus 200 for a microwave home appliance according to an embodiment of the present invention includes: an acquisition module 21 and a control module 22.
The obtaining module 21 is configured to obtain a first vibration duration of a magnetron in a microwave home appliance in a current working cycle.
The control module 22 is configured to recognize that the first vibration duration reaches a first preset duration, control the magnetron to stop vibrating, and control a frequency converter in the microwave home appliance to continue to provide a filament current to the magnetron in a process that the magnetron stops vibrating in the current working cycle.
In an embodiment of the present invention, the control module 22 is specifically configured to control the frequency converter to provide the magnetron with a voltage lower than a critical voltage required for the magnetron to vibrate.
In an embodiment of the present invention, the control module 22 is specifically configured to send a first driving signal to the frequency converter, and the frequency converter drives a transistor to provide a voltage to the magnetron according to the first driving signal, where the first driving signal carries a first on-time of the transistor, and the first on-time is less than an on-time required for the operating voltage of the magnetron to reach the critical voltage.
In an embodiment of the present invention, the control module 22 is specifically configured to, after controlling a frequency converter of the microwave home appliance to continue to provide a filament current to the magnetron, identify that the microwave home appliance enters a next working cycle, send a second driving signal to the frequency converter, and drive a transistor to be conducted to the magnetron by the frequency converter according to the second driving signal to provide a voltage, where the second driving signal carries a second conduction duration of the transistor, and the second conduction duration is greater than or equal to a conduction duration required for the working voltage of the magnetron to reach the critical voltage.
In an embodiment of the present invention, the control module 22 is specifically configured to detect an input voltage and an input current of the frequency converter during the vibration of the magnetron; adjusting the second on-time of the transistor in the second driving signal according to the input voltage and the input current.
In an embodiment of the present invention, the control module 22 is further configured to control the microwave appliance to detect the first WiFi signal in each duty cycle.
In an embodiment of the present invention, the control module 22 is further configured to identify that the microwave appliance needs to transmit a second WiFi signal, and transmit the second WiFi signal outwards during a process that the magnetron stops vibrating in the current working cycle.
It should be noted that, for details not disclosed in the control apparatus of a microwave home appliance according to the embodiment of the present invention, please refer to details disclosed in the control method of a microwave home appliance according to the above embodiment of the present invention, which are not described herein again.
In summary, the control device of the microwave home appliance according to the embodiment of the present invention controls the magnetron to be in the intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and stability of the WiFi communication in the microwave home appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In order to implement the above embodiment, the present invention further provides a microwave appliance 300, as shown in fig. 6, including the control device 200 of the microwave appliance.
In one embodiment of the present invention, the microwave appliance is a variable frequency microwave appliance.
According to the microwave household appliance, the magnetron is controlled to be in the intermittent vibration state in the working period, so that WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In order to implement the above embodiments, the present invention further provides an electronic device 400, as shown in fig. 7, where the electronic device 400 includes a memory 41 and a processor 42. The processor 42 reads the executable program code stored in the memory 41 to run a program corresponding to the executable program code, so as to implement the control method of the microwave home appliance.
According to the electronic equipment provided by the embodiment of the invention, the processor executes the computer program stored on the memory to control the magnetron to be in the intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process that the magnetron stops vibrating in the working period, and the accuracy and stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In order to implement the above embodiments, the present invention further provides a computer-readable storage medium storing a computer program, which when executed by a processor implements the above control method for a microwave appliance.
The computer readable storage medium of the embodiment of the invention stores the computer program and is executed by the processor, and controls the magnetron to be in an intermittent vibration state in the working period, so that the WiFi communication is not interfered by the magnetron in the process of stopping the vibration of the magnetron in the working period, and the accuracy and the stability of the WiFi communication in the microwave household appliance are improved. Furthermore, in the process of stopping vibration of the magnetron in the working period, the frequency converter in the microwave household appliance can be controlled to continuously provide filament current for the magnetron, the filament temperature of the magnetron is prevented from being too low, the magnetron is ensured to normally vibrate when the next working period starts, and the working stability and reliability of the magnetron are improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A control method of a microwave household appliance is characterized by comprising the following steps:
acquiring a first vibration duration of a magnetron in a microwave household appliance in a current working cycle;
recognizing that the first vibration time length reaches a first preset time length, controlling the magnetron to stop vibrating for a second preset time length;
and controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process of stopping the vibration of the magnetron in the current working period.
2. The method of claim 1, wherein the controlling the magnetron to stop vibrating comprises:
and controlling the frequency converter to provide a critical voltage lower than the critical voltage required by the vibration of the magnetron to the magnetron.
3. The method of claim 2, wherein controlling the frequency converter to provide the magnetron with a voltage below a threshold voltage required for magnetron oscillation comprises:
and sending a first driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the first driving signal, wherein the first driving signal carries a first conduction time length of the transistor, and the first conduction time length is less than the conduction time length required by the working voltage of the magnetron reaching the critical voltage.
4. The method of claim 3, wherein after controlling the inverter of the microwave appliance to continue providing the filament current to the magnetron, the method further comprises:
and identifying that the microwave household appliance enters the next working cycle, sending a second driving signal to the frequency converter, and driving a transistor to be conducted to the magnetron to provide voltage by the frequency converter according to the second driving signal, wherein the second conduction time of the transistor is carried in the second driving signal and is more than or equal to the conduction time required by the critical voltage when the working voltage of the magnetron reaches.
5. The method of claim 4, further comprising:
detecting the input voltage and the input current of the frequency converter in the process of the vibration of the magnetron;
adjusting the second on-time of the transistor in the second driving signal according to the input voltage and the input current.
6. The method of any one of claims 1-5, further comprising:
and controlling the microwave household appliance to detect a first WiFi signal in each work period.
7. The method of any one of claims 1-5, further comprising:
and identifying that the microwave household appliance needs to transmit a second WiFi signal, and transmitting the second WiFi signal outwards in the process that the magnetron stops vibrating in the current working period.
8. A control apparatus for a microwave home appliance, comprising:
the acquisition module is used for acquiring a first vibration duration of a magnetron in the microwave household appliance in the current working cycle;
and the control module is used for identifying that the first vibration time length reaches a first preset time length, controlling the magnetron to stop vibrating, and controlling a frequency converter in the microwave household appliance to continuously provide filament current for the magnetron in the process of stopping vibrating the magnetron in the current working period.
9. A microwave appliance comprising the control device of the microwave appliance according to claim 8.
10. The microwave appliance of claim 9, wherein the microwave appliance is a variable frequency microwave appliance.
11. An electronic device comprising a memory, a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the control method of the microwave appliance according to any one of claims 1 to 7.
12. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, implements a method for controlling a microwave appliance according to any one of claims 1 to 7.
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| CN202010404307.3A CN111615230B (en) | 2020-05-13 | 2020-05-13 | Control method and device for microwave household appliance, microwave household appliance and electronic equipment |
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| CN114115059A (en) * | 2021-11-30 | 2022-03-01 | 广东美的厨房电器制造有限公司 | Household appliance, control method and device thereof and readable storage medium |
| CN114257466A (en) * | 2021-12-20 | 2022-03-29 | 黄冈师范学院 | Multi-frequency-cooperation intelligent home control method |
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| CN111615230B (en) | 2022-06-10 |
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