CN117412428A - Microwave cooking appliance, control method thereof and storage medium - Google Patents

Abstract

The application discloses a microwave cooking appliance, a control method thereof and a storage medium. The microwave cooking appliance comprises a cavity and at least two radio frequency microwave sources. The control method comprises the steps of controlling at least two radio frequency microwave sources to emit microwaves into a cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers; screening a plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode; controlling at least two radio frequency microwave sources to emit microwaves into the cavity in a uniform heating mode; when the first preset condition is met, updating the uniform heating mode, and controlling at least two radio frequency microwave sources to emit microwaves into the cavity according to the updated uniform heating mode. The control method can strengthen the heating uniformity of the microwave cooking electric appliance and improve the use experience of users.

Description

Microwave cooking appliance, control method thereof and storage medium

Technical Field

The application relates to the technical field of household appliances, in particular to a microwave cooking appliance, a control method thereof and a storage medium.

Background

Currently, microwave ovens may generate microwaves to heat food. However, the microwave heating technology is based on the characteristics of high efficiency, penetrating heating and selective heating, so that the problem of uneven heating in the process of heating food is easy to occur, and the final cooking effect of the food is affected.

In the related art, the improvement method for the problem of heating non-uniformity is mainly realized based on optimization of structural types, such as adding a turntable, stirring blade structure, optimizing cavity structure design and the like, in products related to the microwave oven, and the optimization of the structural types increases hardware cost. In the aspect of microwave control, the product of the traditional magnetron can only be simply adjusted through power on-off, and the adjusting mode has little effect of improving heating uniformity.

Disclosure of Invention

The embodiment of the application provides a microwave cooking appliance, a control method thereof and a storage medium.

The microwave cooking appliance of the embodiment of the application comprises a cavity and at least two radio frequency microwave sources. The control method comprises the following steps: controlling the at least two radio frequency microwave sources to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity in the uniform heating mode;

and when the first preset condition is met, updating the uniform heating mode, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the updated uniform heating mode.

In some embodiments, the uniform heating mode includes a heating phase, a first frequency point, and a second frequency point, a difference between the frequency of the first frequency point and the frequency of the second frequency point being within a preset range.

In some embodiments, said controlling at least two of said rf microwave sources to emit microwaves into said cavity in said uniform heating mode comprises:

and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the first frequency point and the heating phase, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the second frequency point and the heating phase in an alternating manner.

In certain embodiments, the first preset condition comprises at least one of:

the duration of the microwave emission of the at least two radio frequency microwave sources into the cavity exceeds a first time threshold;

the difference between the transmission power and the reflection power of the at least two radio frequency microwave sources for transmitting microwaves into the cavity exceeds a first power threshold.

In certain embodiments, the control method comprises:

and when the second preset condition is met, controlling all the radio frequency microwave sources to stop transmitting microwaves.

In certain embodiments, the second preset condition comprises at least one of:

the duration of the at least two radio frequency microwave sources transmitting microwaves into the cavity exceeds a second time threshold;

the difference value between the transmitting power and the reflecting power of the at least two radio frequency microwave sources transmitting microwaves into the cavity exceeds a second power threshold;

the number of times that the first preset condition is satisfied exceeds a number of times threshold.

In certain embodiments, the preset power is less than or equal to 100 watts.

In certain embodiments, the first power is 30 watts.

The microwave cooking appliance of the embodiment of the application comprises a cavity, at least two radio frequency microwave sources and a controller, wherein the controller is connected with the at least two radio frequency microwave sources and is used for: controlling the at least two radio frequency microwave sources to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity in the uniform heating mode;

and when the first preset condition is met, updating the uniform heating mode, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the updated uniform heating mode.

A non-transitory computer readable storage medium containing a computer program according to an embodiment of the present application, when executed by one or more processors, implements the control method according to any of the above embodiments.

According to the microwave cooking appliance, the control method thereof and the storage medium, according to the multiple scanning reflected power, the scanning heating mode which can enable food to be heated more uniformly is selected from the multiple scanning heating modes to serve as a uniform heating mode, so that heating uniformity of the microwave cooking appliance is enhanced, and user experience is improved.

Additional aspects and advantages of the application 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 application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a flow chart of a control method of an embodiment of the present application;

fig. 2 is a schematic structural view of a microwave cooking appliance according to an embodiment of the present application;

fig. 3 is another flow chart of the control method according to the embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, and are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of embodiments of the present application, the terms "first," "second," and the like 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 defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application may be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, the control method of the microwave cooking appliance 100 according to the embodiment of the present application may be implemented by the microwave cooking appliance 100 according to the embodiment of the present application, the microwave cooking appliance 100 may include a cavity 10, at least two radio frequency microwave sources 12, the microwave cooking appliance 100 may further include at least two space radiating units 14, each radio frequency microwave source 12 is connected to a corresponding one of the space radiating units 14, and microwaves emitted by the radio frequency microwave sources 12 are fed into the cavity 10 through the space radiating units 14.

The control method comprises the following steps:

step 012, controlling at least two RF microwave sources 12 to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

step 014, screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

step 016, controlling at least two RF microwave sources 12 to emit microwaves into the cavity in a uniform heating mode;

in step 018, when the first preset condition is met, the uniform heating pattern is updated, and at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in the updated uniform heating pattern.

The control method of the embodiment of the present application may be implemented by the microwave cooking appliance 100 of the embodiment of the present application. Specifically, referring to fig. 2, the microwave cooking appliance 100 further includes a controller 16, and the controller 16 is connected to at least two rf microwave sources 12. The controller 16 is configured to control at least two rf microwave sources 12 to emit microwaves into the cavity with a preset power in a plurality of scanning heating modes, so as to obtain a plurality of corresponding scanning reflected powers; screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference; controlling at least two radio frequency microwave sources 12 to emit microwaves into the cavity in a uniform heating mode; when the first preset condition is met, the uniform heating mode is updated, and the at least two radio frequency microwave sources 12 are controlled to emit microwaves into the cavity according to the updated uniform heating mode.

According to the control method of the microwave cooking electric appliance 100 and the microwave cooking electric appliance 100, according to the plurality of scanning reflected power, the scanning heating mode which can enable food to be heated more uniformly is selected from the plurality of scanning heating modes to serve as the uniform heating mode, so that heating uniformity of the microwave cooking electric appliance 100 is enhanced, and user experience is improved.

The microwave cooking appliance 100 may include a microwave oven, a microwave rice cooker, etc. the microwave cooking appliance 100.

In particular, the RF microwave source 12 may generate microwave signals of a particular power, frequency, phase difference. The rf microwave source 12 may comprise a semiconductor microwave source that may generate a steady power, frequency, phase-shifted microwave signal. In the embodiment of fig. 2, the microwave cooking appliance 100 further includes two space radiating elements 14, and the space radiating elements 14 may include slot antennas, which are antennas formed by slotting on a conductor plane, exciting a radio frequency electromagnetic field in the slots, and radiating electromagnetic waves into the space. The slot antenna has a series of outstanding advantages of easy processing, economical manufacturing cost, high radiation efficiency, stable performance and the like. The spatial radiating element 14 may also include a dipole antenna that may be used to transmit and receive signals at a fixed frequency. The dipole antenna consists of two conductors, and has the characteristics of simple use method, easy realization, good effect and the like. Each rf microwave source 12 is connected to a corresponding space radiating unit 14, and the space radiating units 14 can feed microwaves generated by the rf microwave sources 12 into the cavity 10, so as to raise the temperature of food in the cavity 10. In some embodiments, microwave cooking appliance 100 includes a microwave transmission system 13, where microwave transmission system 13 may be a waveguide, coaxial cable, or other structure that can transmit microwave forms. The microwave transmission system 13 may transmit microwaves generated by the rf microwave source 12 to the space radiating unit 14, and the space radiating unit 14 may feed microwaves transmitted by the microwave transmission system 13 into the cavity 10.

The microwave cooking appliance 100 of the present embodiment takes two rf microwave sources 12 as an example, and in other embodiments, the number of rf microwave sources 12 may be 3, 4 or more than 4.

It will be appreciated that in the case of different shapes, types, etc. of foods in the cavity, the frequency and phase difference at which the foods are heated uniformly are different, that is, a suitable uniform heating pattern needs to be obtained according to the specific food conditions in the cavity. It is worth to say that, the reflected power of microwave can be used to obtain the power absorbed by food and the uniformity of food heating, so that the scanning reflected power corresponding to the scanning heating mode is obtained to screen the better scanning heating mode. That is, the control method of the present application controls at least two rf microwave sources 12 to emit microwaves into the cavity at a preset power by using a plurality of scanning heating modes, obtains a corresponding plurality of scanning reflected powers, and obtains a uniform heating mode matched with the food in the cavity according to the plurality of scanning reflected powers.

Specifically, at least two RF microwave sources 12 emit microwaves into the cavity in a plurality of scanning heating modes to facilitate screening which scanning heating mode is more suitable for heating food in the cavity based on the plurality of scanning reflected power. The plurality of scanning reflected powers may be different in phase, frequency, or both. It should be noted that, taking the example that the microwave cooking apparatus 100 includes two rf microwave sources 12, the scanning heating mode may include a frequency and a phase difference between the two rf microwave sources 12, and the scanning heating mode may also include a frequency and a phase corresponding to the two rf microwave sources 12, which is not limited in this application.

In a certain embodiment, the microwave frequency range emitted by the rf microwave source 12 may be 2400 MHz-2500 MHz, the phase difference range may be 0-360 °, each scanning heating mode may be stepped by 5MHz and 10 ° difference phase within the range, that is, the frequency of the scanning heating mode may include 2400MHz, 2405MHz, 2410MHz, 2415MHz, 2420MHz, … …, 2495MHz and 2500MHz; the phase difference of the scanning heating mode may include 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 ° up to 360 °.

Specifically, in one embodiment, at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in a scanning heating mode with a frequency of 2400MHz, wherein at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in a sequence of a scanning heating mode with a phase difference of 0 °, a scanning heating mode with a phase difference of 10 °, a scanning heating mode with a phase difference of 20 °, a scanning heating mode … …, and a scanning heating mode with a phase difference of 360 °; controlling at least two radio frequency microwave sources 12 to emit microwaves into the cavity by using a scanning heating mode with the frequency of 2405MHz, wherein the at least two radio frequency microwave sources 12 are controlled to emit microwaves into the cavity by using a scanning heating mode with the phase difference of 0 DEG, a scanning heating mode with the phase difference of 10 DEG, a scanning heating mode … … with the phase difference of 20 DEG and a scanning heating mode with the phase difference of 360 deg in sequence; and the like, until all scanning heating modes are completed, obtaining corresponding scanning reflected power.

In another embodiment, at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in a scanning heating mode with a phase difference of 0 °, wherein the at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in a sequence of a scanning heating mode with a frequency of 2400MHz, a scanning heating mode with a frequency of 2405MHz, a scanning heating mode with a frequency of 2410MHz, and a scanning heating mode with a frequency of … … of 2500MHz; controlling at least two radio frequency microwave sources 12 to emit microwaves into the cavity by using a scanning heating mode with a phase difference of 10 degrees, wherein the at least two radio frequency microwave sources 12 are controlled to emit microwaves into the cavity by using a scanning heating mode with a frequency of 2400MHz, a scanning heating mode with a frequency of 2405MHz, a scanning heating mode with a frequency of 2410MHz and a scanning heating mode with a frequency of … … MHz; and the like, until all scanning heating modes are completed, obtaining corresponding scanning reflected power.

It should be noted that the specific step data, frequency, and phase difference are for convenience in describing the embodiments of the present application, and should not be construed as limiting the present application.

It should be noted that, when controlling the at least two rf microwave sources 12 to emit microwaves into the cavity in the scan heating mode, the at least two rf microwave sources 12 may emit microwaves together to obtain the scan reflected power, or the at least two rf microwave sources 12 may emit microwaves in batches to obtain the scan reflected power. Specifically, taking the example that the microwave cooking apparatus 100 includes two rf microwave sources 12, the two rf microwave sources 12 may be controlled to emit microwaves into the cavity together in the scanning heating mode, or one rf microwave source 12 may be controlled to emit microwaves into the cavity in the scanning heating mode, and then the other rf microwave source 12 may be controlled to emit microwaves into the cavity in the scanning heating mode.

In an embodiment, taking an example that the microwave cooking apparatus 100 includes two rf microwave sources 12, the scanning reflected power includes a first reflected power and a second reflected power corresponding to the two rf microwave sources 12, respectively, and the plurality of scanning heating modes may be screened to obtain the uniform heating mode according to the consistency of curves of the first reflected power and the second reflected power in the frequency domain as a first standard. It will be appreciated that in general, the two rf microwave sources 12 are mounted at different locations, and that the higher the degree of uniformity of the curve of the reflected power of the two rf microwave sources 12 in the frequency domain, the more uniform the heating of the food in the cavity. In addition, according to the fluctuation degree of the first reflected power and the second reflected power as a second standard, scanning heating modes with smaller fluctuation degree can be screened, and uniform heating modes can be obtained.

It should be noted that, the method for updating the uniform heating mode may repeat the step of obtaining the uniform heating mode, or may manually input a new uniform heating mode, which is not particularly limited in this application.

It should be noted that the uniform heating pattern may include a set of combinations of frequencies and phase differences, and the uniform heating pattern may also include a plurality of sets of combinations of frequencies and phase differences, and the frequencies or phase differences between the different combinations may be the same or different. When controlling the at least two rf microwave sources 12 to emit microwaves into the cavity in the uniform heating mode, the at least two rf microwave sources 12 may be sequentially controlled to emit microwaves into the cavity in a combination of all frequencies and phase differences included in the uniform heating mode, or the at least two rf microwave sources 12 may be controlled to emit microwaves into the cavity in a combination of frequencies and phase differences included in the partial uniform heating mode.

In some embodiments, the uniform heating mode includes a heating phase, a first frequency point, and a second frequency point, a difference between the frequency of the first frequency point and the frequency of the second frequency point being within a preset range.

In this way, the probability of hot spots occurring during heating can be reduced.

Specifically, if the uniform heating mode includes heating phase and single frequency point, then produce the hotspot easily when heating, cause the heating uneven, if the uniform heating mode includes heating phase and three or more frequency points, then be difficult to guarantee the stability of heating effect, consequently, the uniform heating mode includes first frequency point and second frequency point, can compromise to reduce the probability of occurrence of hotspot and ensure heating effect stability, reaches better heating effect.

The preset range may be 3MHz, 5MHz, 10MHz, etc. In a certain embodiment, the frequency of the first frequency point and the frequency of the second frequency point are adjacent frequency points corresponding to the frequency steps of the plurality of scanning heating modes, if the plurality of scanning heating modes step at a frequency of 5MHz, the difference between the frequency of the first frequency point and the frequency of the second frequency point is 5MHz.

For ease of understanding, the following is illustrative. In a certain embodiment, the heating phase is 90 °, the first frequency point is 2440MHz, the second frequency point is 2445MHz, and the preset range may be 5MHz.

Further, step 016 includes:

at least two RF microwave sources 12 are controlled to emit microwaves into the cavity at a first frequency point and a heating phase, and at least two RF microwave sources 12 are controlled to emit microwaves into the cavity at a second frequency point and a heating phase alternately.

The control method of the microwave cooking appliance 100 of the embodiment of the present application may be implemented by the microwave cooking appliance 100 of the embodiment of the present application. Specifically, the controller 16 is configured to control the at least two rf microwave sources 12 to emit microwaves into the cavity at a first frequency point and a heating phase, and to alternately control the at least two rf microwave sources 12 to emit microwaves into the cavity at a second frequency point and a heating phase.

In this way, the probability of hot spots occurring during heating can be reduced.

It should be noted that the uniform heating mode may include a plurality of sets of heating phases, a first frequency point and a second frequency point, and step 016 may include controlling at least two rf microwave sources 12 to emit microwaves into the cavity alternately with the plurality of sets of heating phases, the first frequency point and the second frequency point, wherein controlling at least two rf microwave sources 12 to emit microwaves into the cavity by each set of heating phases, the first frequency point and the second frequency point includes: at least two RF microwave sources 12 are controlled to emit microwaves into the cavity at a first frequency point and a heating phase, and at least two RF microwave sources 12 are controlled to emit microwaves into the cavity at a second frequency point and a heating phase alternately.

In certain embodiments, the first preset condition comprises at least one of:

the duration of the microwave emission into the cavity by the at least two rf microwave sources 12 exceeds a first time threshold;

the difference between the transmitted power and the reflected power of the microwaves emitted by the at least two rf microwave sources 12 into the cavity exceeds a first power threshold.

Thus, a basis can be provided for updating the uniform heating mode.

Specifically, meeting the first preset condition can be understood as that the food in the cavity needs to readjust the uniform heating mode, and it can be understood that under the condition that the food in the cavity is in different temperatures and different states, the reflected power in the cavity may change, so that the uniform heating mode is updated in time, and a better uniform heating effect can be achieved.

The difference between the transmission power and the reflected power of the microwaves emitted by the at least two rf microwave sources 12 into the cavity can be used to express the power absorbed by the food in the cavity, and the first power threshold can be adjusted according to the energy required for cooking the food, the type of food, and the like, which is not particularly limited in this application.

The first preset condition may include that a time period during which the at least two rf microwave sources 12 emit microwaves into the cavity exceeds a first time threshold, the first preset condition may further include that a difference between a transmission power of the at least two rf microwave sources 12 emitting microwaves into the cavity and a reflection power exceeds a first power threshold, the first preset condition may further include that a time period during which the at least two rf microwave sources 12 emit microwaves into the cavity exceeds the first time threshold, and that a difference between a transmission power of the at least two rf microwave sources 12 emitting microwaves into the cavity and a reflection power exceeds the first power threshold.

It will be appreciated that the first time threshold may be set by the manufacturer, and the first time threshold may also be set by the user, which is not particularly limited in this application. The first power threshold may be set by the manufacturer, or the first power threshold may be set by the user, which is not specifically limited in this application.

It should be noted that, in other embodiments, the first preset condition may further include a temperature of the food in the cavity.

In some embodiments, referring to fig. 3, the control method includes:

step 022, when the second preset condition is satisfied, controls all the rf microwave sources 12 to stop emitting microwaves.

The control method of the microwave cooking appliance 100 of the embodiment of the present application may be implemented by the microwave cooking appliance 100 of the embodiment of the present application. Specifically, the controller 16 is configured to control all the rf microwave sources 12 to stop emitting microwaves when the second preset condition is satisfied.

Thus, the radio frequency microwave source 12 can be stopped from emitting microwaves in time, and food in the cavity is prevented from being overheated.

Specifically, when the second preset condition is satisfied, it can be considered that the food in the microwave oven has not been heated.

Further, the second preset condition includes at least one of:

the duration of the microwave emission into the cavity by the at least two rf microwave sources 12 exceeds a second time threshold;

the difference between the transmission power and the reflected power of the microwaves transmitted by the at least two rf microwave sources 12 into the cavity exceeds a second power threshold;

the number of times the first preset condition is satisfied exceeds a number of times threshold.

In this way, it is possible to provide a basis for stopping the emission of microwaves by the rf microwave source 12.

Specifically, the second time threshold may be set by a manufacturer, for example, the manufacturer sets the longest cooking time of the microwave cooking appliance 100, so as to avoid overheating of the microwave cooking appliance 100; the second time threshold may also be set by a user, for example, the user may set the heating duration, and the second time threshold may also be updated after sale. The second power threshold may be set by the manufacturer, and the second power threshold may also be set by the user, which is not specifically limited in this application.

Specific values of the frequency threshold may be 1, 2, 3, and 3 or more times, which are not particularly limited in this application.

In certain embodiments, the preset power is less than or equal to 100 watts.

Therefore, the great influence on food in the cavity can be avoided in the process of acquiring a plurality of corresponding scanning reflected powers.

Specifically, at least two rf microwave sources 12 are controlled to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, so as to obtain corresponding scanning reflected power, and under the condition of overlarge preset power, the state of food in the cavity is greatly affected, so that the scanning reflected power obtained later may have larger errors, in addition, uneven food heating may be caused, and user experience is reduced. Therefore, the preset power is less than or equal to 100 watts, so that overlarge errors of the corresponding multiple scanning reflected powers are avoided, and the influence on food in the process of acquiring the multiple scanning reflected powers is reduced.

Further, the first power is 30 watts.

Thus, not only energy can be saved, but also the influence on food in the process of acquiring a plurality of scanning reflected powers can be reduced.

Embodiments of the present application also provide a non-transitory computer readable storage medium containing a computer program, which, when executed by one or more processors, implements the steps of any of the control methods described above.

For example, in the case where the program is executed by a processor, the steps of the following control method are implemented:

step 012, controlling at least two RF microwave sources 12 to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

step 014, screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

step 016, controlling at least two RF microwave sources 12 to emit microwaves into the cavity in a uniform heating mode;

in step 018, when the first preset condition is met, the uniform heating pattern is updated, and at least two rf microwave sources 12 are controlled to emit microwaves into the cavity in the updated uniform heating pattern.

The non-volatile computer readable storage medium may be disposed in the microwave cooking apparatus 100, or may be disposed in a cloud server, where the microwave cooking apparatus 100 may communicate with the cloud server to obtain a corresponding program.

It is understood that the computer program comprises computer program code. The computer program code may be in the form of source code, object code, executable files, or in some intermediate form, among others. The computer readable storage medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a software distribution medium, and so forth.

The controller of the microwave cooking appliance 100 is a single chip microcomputer chip, and integrates a processor, a memory, a communication module and the like. The processor may refer to a processor comprised by the controller. The processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, system that includes a processing module, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

It is to be understood that portions of embodiments of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.

Furthermore, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.

Although the embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments described above by those of ordinary skill in the art within the scope of the application.

Claims (10)

1. A control method of a microwave cooking appliance is characterized in that the microwave cooking appliance comprises a cavity and at least two radio frequency microwave sources,

the control method comprises the following steps:

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity in the uniform heating mode;

and when the first preset condition is met, updating the uniform heating mode, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the updated uniform heating mode.

2. The control method of a microwave cooking appliance according to claim 1, wherein the uniform heating pattern includes a heating phase, a first frequency point, and a second frequency point, and a difference between the frequency of the first frequency point and the frequency of the second frequency point is within a preset range.

3. The method of controlling a microwave cooking appliance according to claim 2, wherein controlling at least two of the rf microwave sources to emit microwaves into the cavity in the uniform heating mode comprises:

and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the first frequency point and the heating phase, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the second frequency point and the heating phase in an alternating manner.

4. The control method of a microwave cooking appliance according to claim 1, wherein the first preset condition includes at least one of:

the duration of the microwave emission of the at least two radio frequency microwave sources into the cavity exceeds a first time threshold;

the difference between the transmission power and the reflection power of the at least two radio frequency microwave sources for transmitting microwaves into the cavity exceeds a first power threshold.

5. The control method of a microwave cooking appliance according to claim 1, wherein the control method comprises:

and when the second preset condition is met, controlling all the radio frequency microwave sources to stop transmitting microwaves.

6. The control method of a microwave cooking appliance according to claim 5, wherein the second preset condition includes at least one of:

the duration of the at least two radio frequency microwave sources transmitting microwaves into the cavity exceeds a second time threshold;

the difference value between the transmitting power and the reflecting power of the at least two radio frequency microwave sources transmitting microwaves into the cavity exceeds a second power threshold;

the number of times that the first preset condition is satisfied exceeds a number of times threshold.

7. The control method of a microwave cooking appliance according to claim 1, wherein the preset power is less than or equal to 100 watts.

8. The method of claim 7, wherein the preset power is 30 watts.

9. A microwave cooking appliance, comprising:

a cavity;

at least two radio frequency microwave sources;

a controller connected with the at least two radio frequency microwave sources,

the controller is used for:

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity with preset power in a plurality of scanning heating modes, and obtaining a plurality of corresponding scanning reflected powers;

screening the plurality of scanning heating modes according to the plurality of scanning reflected powers to obtain a uniform heating mode, wherein the uniform heating mode comprises a combination of frequency and phase difference;

controlling the at least two radio frequency microwave sources to emit microwaves into the cavity in the uniform heating mode;

and when the first preset condition is met, updating the uniform heating mode, and controlling the at least two radio frequency microwave sources to emit microwaves into the cavity according to the updated uniform heating mode.

10. A non-transitory computer readable storage medium containing a computer program, characterized in that the control method of any one of claims 1-8 is implemented when the computer program is executed by one or more processors.