Control method for microwave cooking appliance and microwave cooking appliance

Abstract

A control method for a microwave cooking appliance and a microwave cooking appliance. The control method for a microwave cooking appliance comprises: when a magnetron of the microwave cooking appliance is turned off, acquiring information of food in a chamber of the microwave cooking appliance; according to the information of food, determining a target power of the magnetron; and, according to the target power, controlling a power supply module of the microwave cooking appliance to supply power to the magnetron, such that the output power of the magnetron is consistent with the target power. The described control method for a microwave cooking appliance can acquire information of food in a chamber, and determine a target power of a magnetron according to the information of food in the chamber, so as to control a power supply module to supply power to the magnetron according to the target power, such that the output power of the magnetron is consistent with the target power, thereby achieving automatic identification and autonomous control of food, improving the intelligent degree of microwave cooking appliances, and simplifying user operation.

Description

Control method of microwave cooking appliance and microwave cooking appliance

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202311096167.8, filed on August 28, 2023, entitled “Control Method of Microwave Cooking Appliance and Microwave Cooking Appliance,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present invention relates to the field of household appliances, in particular to a control method for a microwave cooking appliance and a microwave cooking appliance. Background Art

[0004] In related art, microwave ovens have a magnetron. When the magnetron is functioning properly, the user selects the appropriate menu on the control panel based on the type and quantity of food to be heated, sets the power and time, and the power module provides the pre-set power and heating program for heating. However, this operation requires manual adjustment by the user, which is cumbersome.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a control method for a microwave cooking appliance and a microwave cooking appliance to solve at least one of the above-mentioned technical problems.

[0007] A control method for a microwave cooking appliance according to an embodiment of the present disclosure includes:

[0008] collecting food information in the cavity of the microwave cooking appliance when the magnetron of the microwave cooking appliance is turned off;

[0009] determining a target power of the magnetron according to the food information;

[0010] According to the target power, a power module of the microwave cooking appliance is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0011] The control method of the above-mentioned microwave cooking appliance can collect food information in the cavity and determine the target power of the magnetron based on the food information in the cavity. Then, the power module can be controlled to supply power to the magnetron according to the target power, so that the output power of the magnetron is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance, and simplifying user operation.

[0012] In some embodiments, the food information includes food weight and food type, and collecting the food information in the cavity of the microwave cooking appliance includes:

[0013] collecting the weight of the food using a weight sensor;

[0014] A food image is captured by a camera, and the food image is processed to determine the type of food.

[0015] In some embodiments, determining the target power of the magnetron according to the food information includes:

[0016] determining a target voltage according to the food information;

[0017] Determining a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0018] The target power is determined according to the preset voltage range.

[0019] In some embodiments, the magnetron includes a first magnet, a second magnet, an anode, and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet;

[0020] According to the target power, controlling the power module of the microwave cooking appliance to supply power to the magnetron so that the output power of the magnetron is consistent with the target power includes:

[0021] determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament;

[0022] According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0023] In certain embodiments, the control method comprises:

[0024] When the magnetron is turned off and the microwave cooking appliance is in an unloaded state, the magnetron is kept in a turned-off state.

[0025] A microwave cooking appliance according to an embodiment of the present disclosure includes a magnetron, a cavity, a control module, an information acquisition module, an information processing module, and a power module, wherein the information processing module is electrically connected to the control module and the information acquisition module, and the power module is electrically connected to the control module and the magnetron;

[0026] The information collection module is configured to: collect food information in the cavity when the magnetron is turned off;

[0027] The information processing module is configured to: determine the target power of the magnetron according to the food information;

[0028] The control module is configured to: according to the target power, control the power supply module to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0029] The above-mentioned microwave cooking appliance can collect food information in the cavity and determine the target power of the magnetron based on the food information in the cavity. It can then control the power module to supply power to the magnetron according to the target power, so that the output power of the magnetron is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance, and simplifying user operation.

[0030] In some embodiments, the food information includes food weight and food type, and the information collection module includes a weight sensor and a camera, and the information collection module is configured to:

[0031] collecting the weight of the food using the weight sensor;

[0032] The photographing device is used to capture food images, and the food images are processed to determine the type of food.

[0033] In some embodiments, the information processing module is configured to:

[0034] determining a target voltage according to the food information;

[0035] Determining a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0036] The target power is determined according to the preset voltage range.

[0037] In some embodiments, the magnetron includes a first magnet, a second magnet, an anode, and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet;

[0038] The control module is configured as follows:

[0039] determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament;

[0040] According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

[0041] In some embodiments, the control module is configured to:

[0042] When the magnetron is turned off and the cavity is unloaded, the magnetron is kept in a turned-off state.

[0043] Additional aspects and advantages of the present disclosure will be given in part in the description that follows and, in part, will be obvious from the description that follows, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the description of the embodiments with reference to the following drawings, in which:

[0045] FIG1 is a flow chart of a control method for a microwave cooking appliance according to an embodiment of the present disclosure;

[0046] FIG2 is a schematic diagram of a module of a microwave cooking appliance according to an embodiment of the present disclosure;

[0047] FIG3 is another schematic diagram of a module of a microwave cooking appliance according to an embodiment of the present disclosure.

[0048] FIG4 is another flow chart of a control method for a microwave cooking appliance according to an embodiment of the present disclosure;

[0049] FIG5 is a schematic structural diagram of a magnetron according to an embodiment of the present disclosure;

[0050] FIG6 is another flowchart of the control method of the microwave cooking appliance according to the embodiment of the present disclosure.

[0051] Description of main component symbols:

[0052] Microwave cooking appliance 100, magnetron 12, cavity 14, power module 16, weight sensor 18, camera 20, first magnet 22, second magnet 24, anode 26, filament 28, interaction space 29, control module 30, energy output window 31, information acquisition module 32, information processing module 34. DETAILED DESCRIPTION

[0053] The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present disclosure, and should not be understood as limiting the embodiments of the present disclosure.

[0054] 1 and 2 , a control method of a microwave cooking appliance 100 provided in an embodiment of the present disclosure includes:

[0055] Step 101, collecting food information in the cavity 14 of the microwave cooking appliance 100 when the magnetron 12 of the microwave cooking appliance 100 is turned off;

[0056] Step 103, determining the target power of the magnetron 12 according to the food information;

[0057] Step 105 : According to the target power, the power module 16 of the microwave cooking appliance 100 is controlled to supply power to the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0058] The control method of the above-mentioned microwave cooking appliance 100 can collect food information in the cavity 14 and determine the target power of the magnetron 12 based on the food information in the cavity 14. Then, the power module 16 can be controlled to supply power to the magnetron 12 according to the target power, so that the output power of the magnetron 12 is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance 100, and simplifying user operation.

[0059] Specifically, the microwave cooking appliance 100 includes, but is not limited to, microwave ovens, microwave rice cookers, microwave ovens, and microwave-steam-and-bake appliances. In the initial state of the microwave cooking appliance 100, the magnetron 12 is off and inoperative. When food is placed in the cavity 14, the microwave cooking appliance 100 collects food information and, based on this information, determines a target power for the magnetron 12. Based on the target power, the microwave cooking appliance 100 controls the power module 16 to supply power to the magnetron 12. The magnetron 12 automatically begins operating and outputs microwaves at the target power. The microwaves are fed into the cavity 14 via the waveguide and antenna, heating the food within.

[0060] The output power of the magnetron 12 is consistent with the target power, which can be understood as completely consistent with the target power, or the difference between the output power of the magnetron 12 and the target power is within a set range. The microwave cooking appliance 100 of the disclosed embodiment can automatically identify food, collect corresponding food information, and automatically control the operation of the magnetron 12, thereby enhancing the intelligence of the microwave cooking appliance 100 and simplifying user operation.

[0061] In some embodiments, referring to FIG. 3 , the food information includes food weight and food type, and step 101 includes:

[0062] Using the weight sensor 18 to collect the weight of the food;

[0063] The photographing device 20 is used to capture food images, and the food images are processed to determine the type of food.

[0064] In this way, food information can be collected.

[0065] Specifically, the microwave cooking appliance 100 may include a weight sensor 18 and a chassis. The chassis may be located within the cavity 14, and food may be placed on the chassis. A rotating motor may be connected to the bottom of the chassis. When the magnetron 12 is operating, the rotating motor may drive the chassis to rotate, thereby rotating the food, thereby improving the uniformity of food heating. It is understood that in other embodiments, the chassis may be stationary when the magnetron 12 is operating.

[0066] The weight sensor 18 can be installed at the bottom of the chassis. When there is no object placed on the chassis, the weight output by the weight sensor 18 is 0 grams (g). When food is placed on the chassis, the chassis applies the gravity of the food to the weight sensor 18. The weight sensor 18 can output an electrical signal (such as voltage) representing the weight of the food, and then the weight of the food can be obtained.

[0067] The imaging device 20 may include a camera, which may be positioned on the upper portion of the inner wall of the cavity 14. The camera may capture images of food, which the microwave cooking appliance 100 may process to determine the type of food. Image processing techniques may be used to process the food images to determine the type of food. These techniques include, but are not limited to, neural networks, and are not discussed in detail here. It is understood that the camera may be positioned elsewhere within the microwave cooking appliance 100, not limited to the upper portion of the inner wall of the cavity 14, as long as it can capture images of food and determine the type of food. This is not specifically limited in this disclosure.

[0068] In one example, the food is steak, and the weight is 200 g.

[0069] In some embodiments, referring to FIG. 4 , step 103 includes:

[0070] Step 1031, determining a target voltage based on food information;

[0071] Step 1033 , determining a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0072] Step 1035: Determine the target power according to the preset voltage range.

[0073] In this way, the target power can be determined efficiently.

[0074] Specifically, the food information may include the weight of the food. The weight of the food can be measured using a weight sensor 18. When the food is placed on the bottom plate, the weight sensor 18 can output a target voltage representing the weight of the food. The target voltage can be compared with a plurality of preset voltage ranges to determine a preset voltage range within which the target voltage falls.

[0075] The microwave cooking appliance 100 can pre-calibrate the corresponding relationship between each preset voltage range and each power through simulation, testing, etc. After determining the preset voltage range where the target voltage is located, the target power can be further determined through the above corresponding relationship.

[0076] The above corresponding relationship is the power required to heat the food to a better cooking effect based on the food weight. It should be noted that in one embodiment, different food types have different sets of corresponding relationships, each food type has a set of the above corresponding relationships, and a set of the above corresponding relationships includes one or more of the above corresponding relationships. In one embodiment, all food types can adopt the same set of corresponding relationships, which is not specifically limited here.

[0077] For example, when the food weight is 200g, the weight sensor 18 outputs the target voltage u. When the target voltage u satisfies u0 < u < u1, it can be determined that the preset voltage range where the target voltage is located is (u0, u1), and the power corresponding to the preset voltage range (u0, u1) is 200W, then the target power can be determined to be 200W. The power supply module 16 can be controlled to supply power to the magnetron 12 so that the output power of the magnetron 12 is 200W.

[0078] In some embodiments, please refer to FIG. 5. The magnetron 12 includes a first magnet 22, a second magnet 24, an anode 26, and a filament 28. At least one of the first magnet 22 and the second magnet 24 is an electromagnet, and the anode 26 and the filament 28 are located between the first magnet 22 and the second magnet 24.

[0079] Please refer to FIG. 6. Step 105 includes:

[0080] Step 1051, determine the operating parameters of the magnetron 12 according to the target power. The operating parameters include the electrical signal parameters of at least one of the anode 26, the electromagnet, and the filament 28;

[0081] Step 1053, control the power supply module 16 to supply power to the magnetron 12 according to the operating parameters of the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0082] In this way, the output power of the magnetron 12 can be made consistent with the target power.

[0083] Specifically, in FIG. 5, both the first magnet 22 and the second magnet 24 are electromagnets. The first magnet 22 is the upper magnet, and the second magnet 24 is the lower magnet. The filament 28 can serve as the cathode, and an interaction space 29 is formed at an interval between the anode 26 and the filament 28. The electromagnet can be an iron-core electromagnet or a non-iron-core electromagnet. In one embodiment, it can be that the first magnet 22 is a permanent magnet and the second magnet 24 is an electromagnet, or the first magnet 22 is an electromagnet and the second magnet 24 is a permanent magnet.

[0084] Operating Principle of Magnetron 12: When magnetron 12 is operating, as shown in Figure 5, a DC voltage of several thousand volts is applied between filament 28 (cathode) and anode 26. Simultaneously, power is applied to first magnet 22 and second magnet 24, providing a magnetic field in interaction space 29. The DC electric field and DC magnetic field within interaction space 29 are perpendicular to each other. Filament 28 emits electrons, which are accelerated by the electric field and deflected by the magnetic field, oscillating steadily within interaction space 29. The electron velocity is proportional to the ratio E / B, where E is the electric field strength and B is the magnetic flux density. The electron stream emitted by filament 28 acquires energy from the electric field in interaction space 29. Under certain conditions, this energy is transferred to a high-frequency field, which is then output through energy output window 31 as microwaves.

[0085] The first magnet 22 and the second magnet 24 are energized (using a constant voltage or constant current source) to provide a magnetic field. By adjusting the electrical signal parameters of the electromagnet (such as the operating voltage or current), the central magnetic field of the magnetron 12 is adjusted. In conjunction with adjusting the high-voltage power supply of the magnetron 12, the output power of the magnetron 12 can be adjusted between 0 and a maximum power (e.g., if the maximum operating current of the electromagnet is I0, providing a maximum central magnetic field of B0, and the electric field is E0, the maximum output power is m0, then the output power of the magnetron 12 can be adjusted between 0 W and mW). The relationship between the electromagnet's operating current, central magnetic field, electric field, and power can be pre-calibrated through simulation, testing, etc. and stored in the microwave cooking appliance 100. Accordingly, the relationship between the electrical signal parameters of the electromagnet, the electrical signal parameters of the anode 26, the electrical signal parameters of the filament 28, and power can also be pre-calibrated through simulation, testing, etc. and stored in the microwave cooking appliance 100.

[0086] The electrical signal parameter of the anode 26 can be voltage, and the electrical signal parameter of the filament 28 can be current. By using one or a combination of any two or more of the anode 26 voltage, the filament 28 current, and the electromagnet's operating voltage / operating current, an output power of the magnetron 12 consistent with the target power can be achieved. It should be understood that the electrical signal parameter of the anode 26 is not limited to voltage and can also be current, and the electrical signal parameter of the filament 28 is not limited to current and can also be voltage, and these are not specifically limited herein.

[0087] In certain embodiments, the control method comprises:

[0088] When the magnetron 12 is turned off and the microwave cooking appliance 100 is in an unloaded state, the magnetron 12 is kept in the turned-off state.

[0089] In this way, the problem of the microwave cooking appliance 100 igniting when no-load can be avoided.

[0090] Specifically, when the microwave cooking appliance 100 is idle, there is no food in the cavity 14. If the magnetron 12 is turned on, the microwaves output to the cavity 14 are not absorbed by the food but reflected in the cavity 14, which can easily cause a fire in the cavity 14 and cause a safety problem.

[0091] When the magnetron 12 is turned off, when the microwave cooking appliance 100 cannot collect food information, it can be determined that the microwave cooking appliance 100 is in an unloaded state, and the magnetron 12 is kept in an unloaded state to avoid the problem of the microwave cooking appliance 100 igniting due to the magnetron 12 being started.

[0092] Please refer to Figure 2. A microwave cooking appliance 100 according to an embodiment of the present disclosure includes a magnetron 12, a cavity 14, a control module 30, an information acquisition module 32, an information processing module 34 and a power module 16. The information processing module 34 is electrically connected to the control module 30 and the information acquisition module 32, and the power module 16 is electrically connected to the control module 30 and the magnetron 12.

[0093] The information collection module 32 is configured to collect information about the food in the cavity 14 when the magnetron 12 is turned off. The information processing module 34 is configured to determine the target power of the magnetron 12 based on the food information. The control module 30 is configured to control the power supply module 16 to supply power to the magnetron 12 based on the target power so that the output power of the magnetron 12 is consistent with the target power.

[0094] The control method of the above-mentioned microwave cooking appliance 100 can collect food information in the cavity 14 and determine the target power of the magnetron 12 based on the food information in the cavity 14. Then, the power module 16 can be controlled to supply power to the magnetron 12 according to the target power, so that the output power of the magnetron 12 is consistent with the target power, thereby realizing automatic recognition and autonomous control of food, improving the intelligence level of the microwave cooking appliance 100, and simplifying user operation.

[0095] It should be noted that the above explanation of the implementation and beneficial effects of the control method of the microwave cooking appliance 100 is also applicable to the microwave cooking appliance 100 of this embodiment, and will not be elaborated here in order to avoid redundancy.

[0096] Specifically, the information processing module 34 contains pre-set data corresponding to various types of ingredients and the decalcification power data required for various weight ranges of ingredients for comparison. For example, if the type of ingredient collected is steak, the information processing module 34 compares the voltage data under different weights of steak, obtains the target power, and selects the corresponding command to send to the control module 30.

[0097] The information processing module 34 outputs a command to the control module 30 based on the target power, initiating the corresponding operating program and automatically commencing operation of the microwave cooking appliance 100. The control module 30 may include control circuitry. In one embodiment, a portion of the information acquisition module 32 and the information processing module 34 may be integrated into the control module 30 as a central processing unit (CPU), while other portions of the information acquisition module 32 (such as the weight sensor 18 and camera 20) may be external to the CPU. In another embodiment, a portion of the information acquisition module 32, the information processing module 34, and the control module 30 may be integrated into the power module 16.

[0098] In some embodiments, referring to FIG. 3 , the food information includes food weight and food type. The information acquisition module 32 includes a weight sensor 18 and a camera 20 . The information acquisition module 32 is configured as follows:

[0099] Using the weight sensor 18 to collect the weight of the food;

[0100] The photographing device 20 is used to capture food images, and the food images are processed to determine the type of food.

[0101] In this way, food information can be collected.

[0102] In some embodiments, the information processing module 34 is configured to:

[0103] Determine the target voltage based on food information;

[0104] determining a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges;

[0105] The target power is determined based on a preset voltage range.

[0106] In this way, the target power can be determined efficiently.

[0107] In some embodiments, the magnetron 12 includes a first magnet 22 , a second magnet 24 , an anode 26 , and a filament 28 . At least one of the first magnet 22 and the second magnet 24 is an electromagnet. The anode 26 and the filament 28 are located between the first magnet 22 and the second magnet 24 .

[0108] The control module 30 is configured as follows:

[0109] Determining operating parameters of the magnetron 12 according to the target power, the operating parameters including electrical signal parameters of at least one of the anode 26, the electromagnet, and the filament 28;

[0110] According to the operating parameters of the magnetron 12 , the power supply module 16 is controlled to supply power to the magnetron 12 so that the output power of the magnetron 12 is consistent with the target power.

[0111] In this way, the output power of the magnetron 12 can be made consistent with the target power.

[0112] In certain embodiments, the control module 30 is configured to:

[0113] When the magnetron 12 is turned off and the cavity 14 is unloaded, the magnetron 12 is kept in the turned-off state.

[0114] In this way, the problem of the microwave cooking appliance 100 igniting when no-load can be avoided.

[0115] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0116] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable actions for implementing a specific logical function or step of a process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0117] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, combine, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A control method for a microwave cooking appliance, characterized in that: include: When the magnetron of the microwave cooking appliance is turned off, collecting food information in the cavity of the microwave cooking appliance; determining a target power of the magnetron according to the food information; According to the target power, a power module of the microwave cooking appliance is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

2. The control method according to claim 1, characterized in that: The food information includes food weight and food type. Collecting the food information in the cavity of the microwave cooking appliance includes: Using a weight sensor to collect the weight of the food; The food image is captured by a photographing device, and the food image is processed to determine the type of the food.

3. The control method according to claim 1, characterized in that: Determining the target power of the magnetron according to the food information includes: determining a target voltage according to the food information; Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges; The target power is determined according to the preset voltage range.

4. The control method according to claim 1, characterized in that: The magnetron comprises a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet; According to the target power, controlling the power module of the microwave cooking appliance to supply power to the magnetron so that the output power of the magnetron is consistent with the target power comprises: Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament; According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

5. The control method according to claim 1, characterized in that: The control method comprises: When the magnetron is turned off and the microwave cooking appliance is in an unloaded state, the magnetron is kept in a turned off state.

6. A microwave cooking appliance, characterized in that: It includes a magnetron, a cavity, a control module, an information acquisition module, an information processing module and a power module, wherein the information processing module is electrically connected to the control module and the information acquisition module, and the power module is electrically connected to the control module and the magnetron; The information collection module is configured to: collect food information in the cavity when the magnetron is turned off; The information processing module is configured to: determine the target power of the magnetron according to the food information; The control module is configured to: according to the target power, control the power supply module to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

7. The microwave cooking appliance according to claim 6, characterized in that: The food information includes food weight and food type. The information acquisition module includes a weight sensor and a camera. The information acquisition module is configured as follows: collecting the weight of the food using the weight sensor; The photographing device is used to capture food images, and the food images are processed to determine the types of the food.

8. The microwave cooking appliance according to claim 6, characterized in that: The information processing module is configured as follows: determining a target voltage according to the food information; Determine a preset voltage range in which the target voltage is located from a plurality of preset voltage ranges; The target power is determined according to the preset voltage range.

9. The microwave cooking appliance according to claim 6, characterized in that: The magnetron comprises a first magnet, a second magnet, an anode and a filament, at least one of the first magnet and the second magnet is an electromagnet, and the anode and the filament are located between the first magnet and the second magnet; The control module is configured as follows: Determining operating parameters of the magnetron according to the target power, the operating parameters comprising electrical signal parameters of at least one of the anode, the electromagnet, and the filament; According to the operating parameters of the magnetron, the power supply module is controlled to supply power to the magnetron so that the output power of the magnetron is consistent with the target power.

10. The microwave cooking appliance according to claim 6, characterized in that: The control module is configured as follows: When the magnetron is turned off and the cavity is unloaded, the magnetron is kept in a turned off state.

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