Cooking appliance

Abstract

The application provides a cooking utensil, comprising: a shell comprising a cooking cavity; a microwave heating disc arranged in the cooking cavity; a microwave generating part arranged in the shell and used for feeding microwaves to the microwave heating disc to heat the microwave heating disc; a heating part arranged in the shell and located above the microwave heating disc and used for heating the cooking cavity; a first temperature detecting part arranged in the shell and used for detecting a temperature value of the microwave heating disc; a second temperature detecting part arranged in the shell and located above the microwave heating disc and used for detecting a temperature value of the cooking cavity; and a control part connected with the first temperature detecting part, the second temperature detecting part, the heating part and the microwave generating part and used for controlling the heating part and the microwave generating part to work according to the detection values of the first temperature detecting part and the second temperature detecting part. The cooking utensil provided by the application can ensure the accuracy of temperature regulation and guarantee the frying effect and coloring effect on food materials.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to a cooking appliance. Background Technology

[0002] In related technologies, the microwave heating plate of a cooking appliance heats up under the action of microwaves, thus cooking the food on the microwave heating plate. When cooking food, the temperature of the microwave heating plate can be detected by a temperature sensor set above the cavity to control the microwave generator. However, when the upper heating element is turned on to brown and heat the surface of the food, the temperature above the cavity will rise. If the original temperature sensor is used for regulation, the temperature control effect of the microwave heating plate will fail. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the present invention provides a cooking utensil.

[0005] In view of this, the present invention provides a cooking appliance, comprising: a housing, the housing including a cooking cavity; a microwave heating plate disposed within the cooking cavity; a microwave generating unit disposed in the housing for feeding microwaves to the microwave heating plate to heat the microwave heating plate; a heating unit disposed in the housing, located above the microwave heating plate, for supplying heat to the cooking cavity; a first temperature detection element disposed in the housing for detecting the temperature value of the microwave heating plate; a second temperature detection element disposed in the housing, located above the microwave heating plate, for detecting the temperature value of the cooking cavity; and a control unit connected to the first temperature detection element, the second temperature detection element, the heating unit, and the microwave generating unit, for controlling the operation of the heating unit and the microwave generating unit according to the detection values ​​of the first temperature detection element and the second temperature detection element.

[0006] The cooking appliance provided by this invention includes a housing, a microwave heating plate, a microwave generator, a heating unit, a first temperature sensor, a second temperature sensor, and a control unit. The microwave generator feeds microwaves into the heating plate, which heats up under the influence of the microwaves, thereby heating the food placed on the heating plate from the bottom. Simultaneously, the heating unit is located above the microwave heating plate. When the heating unit is activated, it delivers heat downwards, heating the surface of the food on the microwave heating plate and achieving a coloring effect. The combined heating of the microwave heating plate and the heating unit enhances the cooking results. The first temperature sensor detects the temperature of the microwave heating plate, and the second temperature sensor detects the temperature of the cooking cavity. The second temperature sensor is located above the microwave heating plate, thus detecting the temperature above it. In other words, the first temperature sensor reflects the temperature at the bottom of the food, and the second temperature sensor reflects the temperature above it. This ensures accurate temperature control when the control unit adjusts the microwave generator and heating unit based on the first and second temperature sensors, preventing the adjustment of the microwave heating unit from being affected by the temperature above the microwave heating plate and guaranteeing the frying and browning effects on the food.

[0007] The cooking appliance provided by the present invention may also have the following additional technical features:

[0008] In some embodiments, optionally, a first temperature sensing element is located on the side of the microwave heating plate away from the heating part, for detecting the temperature value of the surface of the microwave heating plate.

[0009] In this embodiment, the first temperature sensor is located on the side of the microwave heating plate away from the heating part, that is, the first temperature sensor is located below the microwave heating plate, so that the first temperature sensor is far away from the heating part, avoiding the influence of the heating part on the detection value of the first temperature sensor, and improving the accuracy of detecting the surface temperature value of the microwave heating plate.

[0010] In some embodiments, the first temperature sensing element may optionally be disposed on the side wall of the cooking cavity.

[0011] In this embodiment, the first temperature detection element is disposed on the side wall of the cooking cavity, which can prevent food residue or juice from falling onto the first temperature detection element and affecting the detection accuracy of the first temperature detection element.

[0012] In some embodiments, optionally, the first temperature sensor is located on the side of the cooking cavity near the control unit, and the first temperature sensor is inclined relative to the microwave heating plate so that the first temperature sensor is oriented toward the microwave heating plate.

[0013] In this embodiment, the first temperature detection element is disposed on the side of the cooking cavity near the control unit and is tilted toward the microwave heating plate. This not only shortens the wiring length between the first temperature detection element and the control unit, saving space occupied by the cooking appliance, but also ensures that the first temperature detection element is aligned with the microwave heating plate, thus ensuring the accuracy of temperature detection on the surface of the microwave heating plate.

[0014] In some embodiments, the first temperature sensing element may optionally include a sensing end disposed toward the center of the microwave heating plate.

[0015] In this embodiment, the first temperature detection element includes a detection end, which is tilted toward the center of the microwave heating plate, so that the detection end can capture the temperature information of the central area of ​​the microwave heating plate and thus determine the temperature value.

[0016] Understandably, food is usually placed in the middle of the microwave heating plate. Therefore, by aligning the radiation range of the detection end with the middle of the microwave heating plate, the temperature of the bottom of the food can be detected more accurately, thereby better controlling the cooking temperature and improving the cooking effect.

[0017] In some embodiments, optionally, at least a portion of the first temperature sensing element is embedded within the microwave heating plate.

[0018] In this embodiment, at least a portion of the first temperature sensing element is embedded in the microwave heating plate, so that the first temperature sensing element is in direct contact with the microwave heating plate. That is, the first temperature sensing element directly detects the temperature value of the microwave heating plate, which improves the accuracy of temperature value detection of the microwave heating plate and reduces the influence of the temperature value inside the cooking cavity on the detection value of the first temperature sensing element.

[0019] In some embodiments, the first temperature sensing element includes a sensing part and a first terminal. The sensing part is embedded in the microwave heating plate and connected to the first terminal. The sensing part is used to detect the temperature value of the microwave heating plate. The control part includes a second terminal. When the microwave heating plate is installed in the cooking cavity, the first terminal is connected to the second terminal so that the first temperature sensing element is electrically connected to the control part.

[0020] In this embodiment, the first temperature detection element includes a detection part and a first terminal. The detection part is embedded in the microwave heating plate to directly detect the temperature value of the microwave heating plate, thereby improving the accuracy of the temperature value detection of the heating plate. The first temperature detection element and the control part are electrically connected through the first terminal and the second terminal. Thus, when the microwave heating plate is installed in the cooking cavity, the control part controls the operation of the microwave generator and the heating part according to the detection values ​​of the first temperature detection element and the second temperature detection element.

[0021] In some embodiments, optionally, the first terminal is embedded in the microwave heating plate, and the end of the first terminal is exposed on the periphery of the microwave heating plate; the second terminal is embedded in the side wall of the cooking cavity, and the end of the second terminal is exposed in the cooking cavity; when the microwave heating plate is installed in the cooking cavity, the first terminal and the second terminal are in contact to electrically connect the first temperature sensing element to the control unit.

[0022] In this embodiment, the first terminal is embedded within the microwave heating plate, improving the connection reliability between the detection unit and the first terminal and preventing separation of the detection unit from the first terminal during disassembly or cleaning of the microwave heating plate. Simultaneously, the end of the first terminal is exposed on the periphery of the microwave heating plate, while the second terminal is embedded in the side wall of the cooking cavity, with its end exposed within the cooking cavity. This allows the first and second terminals to contact each other when the microwave heating plate is installed in the cooking cavity, thereby connecting the detection unit and the control unit and enabling the detection of the microwave heating plate's temperature value. This arrangement improves both the accuracy of temperature detection and the ease of communication between the first detection element and the control unit.

[0023] In some embodiments, the first temperature sensing element may optionally include a microwave shielding layer, which wraps around the periphery of the first terminal and the sensing portion.

[0024] In this embodiment, the periphery of the first terminal and the detection part is wrapped with a microwave shielding layer. The microwave shielding layer can shield microwaves, prevent the detection part and the first terminal from heating up, and thus prevent the first detection element from aging too quickly.

[0025] In some embodiments, the microwave shielding layer may optionally include an insulating shielding layer.

[0026] In this embodiment, the microwave shielding layer includes an insulating shielding layer. That is, in addition to shielding microwaves, the microwave shielding layer can also play an insulating role, preventing leakage and thus improving the safety performance of the first detection device.

[0027] In some embodiments, the microwave heating plate may optionally include a microwave absorbing material for absorbing microwaves to generate heat.

[0028] In this embodiment, the microwave heating plate includes a microwave absorbing material. When the microwave generator is turned on, the microwave absorbing material can absorb microwaves, thereby heating the food and achieving the frying or grilling of the food.

[0029] In some embodiments, the microwave generator is optionally located below the microwave heating plate.

[0030] In this embodiment, the microwave generator is located below the microwave heating plate to avoid interference between the installation position of the microwave generator and the heating plate, thus ensuring the uniformity of the microwave field within the cooking cavity.

[0031] In some embodiments, the cooking appliance may optionally include: a partition disposed within the cooking cavity and below the microwave heating plate, the microwave generating part including a waveguide disposed below the partition; and / or a heating part including at least one of a heating tube and a hot air assembly; and / or a second temperature sensing element disposed on the side wall of the cooking cavity and located on the side of the cooking cavity near the control part.

[0032] In this embodiment, the cooking appliance also includes a partition disposed within the cooking cavity. A waveguide is located below the partition. The partition separates the upper cooking space from the waveguide, ensuring safety while preventing food residue from falling onto the waveguide and affecting microwave emission. Optionally, the heating element can be a heating tube, which radiates heat energy to the food below, achieving surface coloring. Alternatively, the heating element can be a hot air assembly, which delivers hot air into the cooking cavity to cook the food and color its surface. Optionally, the second temperature sensor is located on the side wall of the cooking cavity and close to the control unit, shortening the wiring length between the second temperature sensor and the control unit, thereby reducing the space occupied within the cooking appliance.

[0033] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0035] Figure 1 One of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention is shown;

[0036] Figure 2 A second schematic diagram of the structure of a cooking appliance according to an embodiment of the present invention is shown;

[0037] Figure 3 A schematic diagram of the structure of a microwave heating plate according to an embodiment of the present invention is shown;

[0038] Figure 4 The third schematic diagram shows the structure of a cooking appliance according to an embodiment of the present invention.

[0039] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0040] 1. Housing; 10. Cooking cavity; 2. Microwave heating plate; 3. Microwave generator; 30. Waveguide; 32. Magnetron; 4. Heating unit; 40. Heating tube; 5. First temperature sensor; 50. Detection end; 52. Detection unit; 54. First terminal; 56. Microwave shielding layer; 6. Second temperature sensor; 7. Control unit; 70. Second terminal; 72. Insulation layer; 8. Partition. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0043] The following reference Figures 1 to 4 A cooking appliance is described according to some embodiments of the present invention.

[0044] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a cooking appliance is provided, comprising: a housing 1, the housing 1 including a cooking cavity 10; a microwave heating plate 2 disposed within the cooking cavity 10; a microwave generating unit 3 disposed in the housing 1 for feeding microwaves to the microwave heating plate 2 to heat the microwave heating plate 2; a heating unit 4 disposed in the housing 1, located above the microwave heating plate 2, for supplying heat to the cooking cavity 10; a first temperature detection element 5 disposed in the housing 1 for detecting the temperature value of the microwave heating plate 2; a second temperature detection element 6 disposed in the housing 1, located above the microwave heating plate 2, for detecting the temperature value of the cooking cavity 10; and a control unit 7 connected to the first temperature detection element 5, the second temperature detection element 6, the heating unit 4, and the microwave generating unit 3, for controlling the operation of the heating unit 4 and the microwave generating unit 3 according to the detection values ​​of the first temperature detection element 5 and the second temperature detection element 6.

[0045] The cooking appliance provided by this invention includes a housing 1, a microwave heating plate 2, a microwave generator 3, a heating unit 4, a first temperature sensor 5, a second temperature sensor 6, and a control unit 7. The microwave generator 3 feeds in microwaves, and the microwave heating plate 2 heats up under the action of microwaves, thereby heating the food placed on the microwave heating plate 2 from the bottom. Simultaneously, the heating unit 4 is located above the microwave heating plate 2. When the heating unit 4 is turned on, it delivers heat energy downwards, thereby heating the surface of the food on the microwave heating plate 2, achieving the function of coloring the food. The microwave heating plate 2 and the heating unit 4 work together to heat the food, improving the cooking effect. The first temperature sensor 5 is used to detect the temperature value of the microwave heating plate 2, and the second temperature sensor 6 is used to detect the temperature value of the cooking cavity 10. At the same time, the second temperature sensor 6 is located above the microwave heating plate 2, so it can detect the temperature value above the microwave heating plate 2. That is, the detection value of the first temperature sensor 5 can reflect the temperature value at the bottom of the food, and the detection value of the second temperature sensor 6 can reflect the temperature above the food. In this way, when the control unit 7 adjusts the microwave generator 3 and the heating unit 4 according to the detection values ​​of the first temperature sensor 5 and the second temperature sensor 6 respectively, it can ensure the accuracy of temperature control, so that the control of the microwave generator 3 is not affected by the temperature value above the microwave heating plate 2, thus ensuring the frying effect and browning effect of the food.

[0046] Optionally, the heating element 4 is located above the microwave heating plate 2 along the height direction of the cooking appliance.

[0047] Optionally, the second temperature sensing element 6 is located above the microwave heating plate 2 along the height direction of the cooking appliance.

[0048] Optionally, the ingredients can be placed on a microwave heating plate 2, which can be used to fry or grill the ingredients.

[0049] Optionally, the control unit 7 controls the operation of the heating unit 4 and the microwave generator 3 based on the detection values ​​of the first temperature sensor 5 and the second temperature sensor 6. This includes the control unit 7 controlling the heating power of the heating unit 4 and the microwave generator 3 based on the detection values ​​of the first temperature sensor 5 and the second temperature sensor 6. For example, when the detection value of the first temperature sensor 5 exceeds a set value (e.g., the upper limit of the set value), the heating power of the microwave generator 3 can be reduced; when the detection value of the first temperature sensor 5 is lower than the set value (e.g., the lower limit of the set value), the heating power of the microwave generator 3 can be increased. The heating unit 4 can also be adjusted in the same way, which will not be elaborated further here.

[0050] like Figure 1As shown, in some embodiments, optionally, the first temperature detection element 5 is located on the side of the microwave heating plate 2 away from the heating part 4, and is used to detect the temperature value of the surface of the microwave heating plate 2.

[0051] In this embodiment, the first temperature detection element 5 is located on the side of the microwave heating plate 2 away from the heating part 4, that is, the first temperature detection element 5 is located below the microwave heating plate 2, so that the first temperature detection element 5 is far away from the heating part 4, avoiding the influence of the heating part 4 on the detection value of the first temperature detection element 5, and improving the accuracy of detecting the surface temperature value of the microwave heating plate 2.

[0052] Optionally, the first temperature detection element 5 is located on the side of the microwave heating plate 2 away from the heating part 4 along the height direction of the cooking appliance.

[0053] It is understandable that the first temperature detection element 5 is located below the microwave heating plate 2. It can be located directly below the microwave heating plate 2 or located to the side and below the microwave heating plate 2.

[0054] Optionally, the first temperature sensing element 5 can be installed on the microwave heating plate 2 and located on the side of the microwave heating plate 2 away from the heating part 4, or it can be spaced apart from the microwave heating plate 2 along the height direction of the cooking appliance.

[0055] Optionally, when the microwave heating plate 2 is installed inside the cooking cavity 10, the microwave heating plate 2 divides the cooking cavity 10 into a first cavity and a second cavity. The first cavity is located above the microwave heating plate 2, and the second cavity is located below the microwave heating plate 2. The heating element 4 and the second temperature detection element 6 are located in the first cavity. Optionally, the first temperature detection element 5 is located in the second cavity. The first temperature detection element 5 can be located on the left or right side walls of the second cavity, or it can be located on the side of the second cavity away from the opening of the cooking cavity, or it can be located on the bottom wall of the second cavity.

[0056] like Figure 1 As shown, in some embodiments, optionally, the first temperature detection element 5 is disposed on the side wall of the cooking cavity 10.

[0057] In this embodiment, the first temperature detection element 5 is disposed on the side wall of the cooking cavity 10, which can prevent food residue or juice from falling onto the first temperature detection element 5 and affecting the detection accuracy of the first temperature detection element 5.

[0058] like Figure 1 As shown, in some embodiments, optionally, the first temperature sensor 5 is located on the side of the cooking cavity 10 near the control unit 7, and the first temperature sensor 5 is inclined relative to the microwave heating plate 2 so that the first temperature sensor 5 is positioned toward the microwave heating plate 2.

[0059] In this embodiment, the first temperature detection element 5 is disposed on the side of the cooking cavity 10 near the control unit 7 and is inclined toward the microwave heating plate 2. This can shorten the wiring length between the first temperature detection element 5 and the control unit 7, saving space occupied by the cooking appliance, and also ensure that the first temperature detection element 5 is aligned with the microwave heating plate 2, thus ensuring the accuracy of the temperature detection of the surface of the microwave heating plate 2.

[0060] like Figure 1 As shown, in some embodiments, optionally, the first temperature sensing element 5 includes a sensing end 50, which is disposed toward the center of the microwave heating plate 2.

[0061] In this embodiment, the first temperature detection element 5 includes a detection end 50, which is tilted towards the center of the microwave heating plate 2, allowing the detection end 50 to capture the infrared radiation energy in the central region of the microwave heating plate 2 and thus determine the temperature value. It is understood that food is generally placed in the center of the microwave heating plate 2; therefore, aligning the radiation range of the detection end 50 with the center of the microwave heating plate 2 allows for more accurate detection of the temperature at the bottom of the food, thereby better controlling the cooking temperature and improving the cooking effect.

[0062] It should be noted that the detection end 50 is positioned towards the center of the microwave heating plate 2, so that the monitoring range of the detection end 50 is aligned with the central area of ​​the microwave heating plate 2.

[0063] Optionally, the detection end 50 includes an infrared detection end, that is, the first temperature detection element 5 is an infrared sensor. Of course, the detection end 50 can also be a thermal imaging structure.

[0064] like Figure 2 As shown, in some embodiments, optionally, at least a portion of the first temperature sensing element 5 is embedded in the microwave heating plate 2.

[0065] In this embodiment, at least a portion of the first temperature detection element 5 is embedded in the microwave heating plate 2, so that the first temperature detection element 5 directly contacts the microwave heating plate 2. That is, the first temperature detection element 5 directly detects the temperature value of the microwave heating plate 2, which improves the accuracy of the temperature value detection of the microwave heating plate 2 and reduces the influence of the temperature value in the cooking cavity 10 on the detection value of the first temperature detection element 5.

[0066] Optionally, the first temperature sensing element 5 can be a resistive temperature sensing element, such as a thermistor.

[0067] like Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, optionally, the first temperature detection element 5 includes a detection part 52 and a first terminal 54. The detection part 52 is embedded in the microwave heating plate 2 and connected to the first terminal 54. The detection part 52 is used to detect the temperature value of the microwave heating plate 2. The control part 7 includes a second terminal 70. When the microwave heating plate 2 is installed in the cooking cavity 10, the first terminal 54 is connected to the second terminal 70 so that the first temperature detection element 5 is electrically connected to the control part 7.

[0068] In this embodiment, the first temperature detection element 5 includes a detection part 52 and a first terminal 54. The detection part 52 is embedded in the microwave heating plate 2 to realize the direct detection of the temperature value of the microwave heating plate 2, thereby improving the accuracy of the temperature value detection of the heating plate. The first temperature detection element 5 and the control unit 7 are electrically connected through the first terminal 54 and the second terminal 70. Thus, when the microwave heating plate 2 is installed in the cooking cavity 10, the control unit 7 controls the microwave generator 3 and the heating unit 4 to work according to the detection value of the first temperature detection element 5 and the detection value of the second temperature detection element 6.

[0069] It is understandable that the first terminal 54 and the second terminal 70 can be manually connected by the user after the microwave heating plate 2 is installed in the cooking cavity 10, or they can be automatically connected after the microwave heating plate 2 is installed in the cooking cavity 10.

[0070] Optionally, an insulating layer 72 is provided around the second terminal 70 to shield microwaves and prevent microwave leakage while achieving insulation. Optionally, the insulating layer 72 can also shield microwaves.

[0071] Optionally, the first terminal 54 is a retractable structure, so that a part of the first terminal 54 can extend out of the heating plate 2, and after the heating plate 2 is inserted into the cooking cavity 10, it is pushed into the heating plate 2 by the wall of the cooking cavity 10. After the heating plate 2 is installed in place, the first terminal 54 is in close contact with the second terminal 70 under the drive of the elastic element, thereby improving the contact reliability.

[0072] Optionally, the second terminal 70 can also be a telescopic structure, that is, the second terminal 70 can extend and retract relative to the cooking cavity 10, so that the second terminal 70 can extend out of the inner wall of the cooking cavity 10 and can make close contact with the first terminal 54 after the heating plate 2 is installed in place, thereby improving the contact reliability.

[0073] like Figure 2 and Figure 3As shown, in some embodiments, optionally, the first terminal 54 is embedded in the microwave heating plate 2, and the end of the first terminal 54 is exposed on the periphery of the microwave heating plate 2; the second terminal 70 is embedded in the side wall of the cooking cavity 10, and the end of the second terminal 70 is exposed in the cooking cavity 10; when the microwave heating plate 2 is installed in the cooking cavity 10, the first terminal 54 and the second terminal 70 are in contact, so that the first temperature detection element 5 is electrically connected to the control unit 7.

[0074] In this embodiment, the first terminal 54 is embedded within the microwave heating plate 2, improving the connection reliability between the detection unit 52 and the first terminal 54 and preventing separation of the detection unit 52 from the first terminal 54 during disassembly or cleaning of the microwave heating plate 2. Simultaneously, the end of the first terminal 54 is exposed on the periphery of the microwave heating plate 2, and the second terminal 70 is embedded in the side wall of the cooking cavity 10 with its end exposed. Thus, when the microwave heating plate 2 is installed in the cooking cavity 10, the first terminal 54 and the second terminal 70 can contact each other, thereby connecting the detection unit 52 and the control unit 7 to detect the temperature value of the microwave heating plate 2. This arrangement improves the accuracy of temperature detection of the microwave heating plate 2 while enhancing the ease of communication between the first detection unit and the control unit 7.

[0075] It is understandable that the positions of the first terminal 54 and the second terminal 70 are corresponding, so that the end of the first terminal 54 exposed in the microwave heating plate 2 can directly contact the end of the second terminal 70 exposed in the cooking cavity 10, thereby achieving communication between the two.

[0076] Optionally, the end of the first terminal 54 protrudes from the microwave heating plate 2, or the end of the second terminal 70 protrudes into the cooking cavity 10 from the side wall of the cooking cavity 10, so that the first terminal 54 and the second terminal 70 are in closer contact, ensuring the reliability of the electrical connection between the first detection element and the control unit 7.

[0077] like Figure 2 and Figure 3 As shown, in some embodiments, the first temperature detection element 5 may optionally include a microwave shielding layer 56, which wraps around the first terminal 54 and the detection part 52.

[0078] In this embodiment, a microwave shielding layer 56 is wrapped around the periphery of the first terminal 54 and the detection part 52. The microwave shielding layer 56 can shield microwaves, prevent the detection part 52 and the first terminal 54 from heating up, and thus prevent the first detection element from aging too quickly.

[0079] In some embodiments, the microwave shielding layer 56 may optionally include an insulating shielding layer.

[0080] In this embodiment, the microwave shielding layer 56 includes an insulating shielding layer. That is, in addition to shielding microwaves, the microwave shielding layer 56 can also play an insulating role, preventing leakage and thus improving the safety performance of the first detection device.

[0081] Optionally, the microwave shielding layer 56 can be a material such as ferrite-based ceramic material that has both microwave shielding function and insulation properties, or the microwave shielding layer 56 can include a shielding layer and an insulating layer, with the shielding layer used to shield microwaves and the insulating layer used for insulation, and the insulating layer located inside or outside the shielding layer.

[0082] In some embodiments, the microwave heating plate 2 may optionally include a microwave absorbing material for absorbing microwaves to generate heat in the microwave heating plate 2.

[0083] In this embodiment, the microwave heating plate 2 includes a microwave absorbing material. When the microwave generator 3 is turned on, the microwave absorbing material can absorb microwaves, thereby heating the food and achieving the frying or grilling of the food.

[0084] It is understandable that microwave absorbing materials are a class of functional materials that can effectively absorb microwave energy and convert it into heat energy. Optionally, microwave absorbing materials include ferrite absorbing materials, carbon-based absorbing materials, metal-based absorbing materials, etc.

[0085] Alternatively, the microwave heating plate 2 may have microwave absorbing material embedded inside, or the microwave heating plate 2 may be made of microwave absorbing material.

[0086] In some embodiments, the microwave generator 3 is optionally located below the microwave heating plate 2 along the height direction of the cooking appliance.

[0087] In this embodiment, the microwave generator 3 is located below the microwave heating plate 2 along the height direction of the cooking appliance to avoid interference between the installation position of the microwave generator 3 and the heating part 4, and to ensure the uniformity of the microwave field in the cooking cavity 10.

[0088] Optionally, the microwave generating unit 3 and the heating unit 4 are located on the upper and lower sides of the microwave heating plate 2, respectively, and the microwave generating unit 3 and the heating unit 4 are respectively arranged in the middle of the microwave heating plate 2.

[0089] like Figure 1 and Figure 2 As shown, in some embodiments, the cooking appliance may optionally include: a partition 8 disposed within the cooking cavity 10, located below the microwave heating plate 2; a microwave generating unit 3 including a waveguide 30 disposed below the partition 8; and / or a heating unit 4 including at least one of a heating tube 40 and a hot air assembly; and / or a second temperature detection element 6 disposed on the side wall of the cooking cavity 10, located on the side of the cooking cavity 10 near the control unit 7.

[0090] In this embodiment, the cooking appliance also includes a partition 8, which is disposed within the cooking cavity 10. The waveguide 30 is located below the partition 8. The partition 8 separates the upper cooking space from the waveguide 30, ensuring safety while preventing food residue from falling onto the waveguide 30 and affecting the microwave emission function. Optionally, the heating unit 4 can be a heating tube 40, which radiates heat energy to the food below through thermal radiation to achieve coloring of the food surface. The heating unit 4 can also be a hot air assembly, which delivers hot air into the cooking cavity 10 to achieve cooking and coloring of the food surface. Optionally, the second temperature detection element 6 is located on the side wall of the cooking cavity 10 and is disposed close to the control unit 7, shortening the wiring length between the second temperature detection element 6 and the control unit 7, thereby reducing the space occupied within the cooking appliance.

[0091] Optionally, the partition 8 is located below the microwave heating plate 2 along the height direction of the cooking appliance, and the waveguide 30 is located below the partition 8 along the height direction of the cooking appliance.

[0092] Optionally, the second temperature sensing element 6 can be an infrared sensor or a thermistor or other device capable of detecting temperature.

[0093] Optionally, the microwave generator 3 also includes a magnetron 32, which is connected to the control unit 7. The magnetron 32 is used to feed microwaves into the waveguide 30, and the waveguide 30 feeds microwaves into the cooking cavity 10.

[0094] Optionally, the microwave generator 3 also includes a stirring element that extends into the cooking cavity 10 and is located below the partition 8 to stir the microwaves and improve the uniformity of the microwave field in the cooking cavity 10.

[0095] Alternatively, cooking appliances include microwave ovens, microwave steam ovens, microwave air fryers, etc.

[0096] According to some embodiments of this application, optionally, the cooking appliance includes a microwave oven cavity (e.g., housing 1) for mounting microwave electrical components, the interior of the microwave cavity (e.g., cooking cavity 10) for placing food and baking trays, etc., and a microwave field cavity at the bottom of the microwave oven for placing waveguides and other devices. The cooking appliance also includes a microwave base plate, waveguides, magnetron 32, and a microwave computer unit (as the overall control center). The above contents constitute a microwave oven unit.

[0097] This microwave oven not only has a grilling function but also the ability to brown and grill the surface of food. Therefore, in addition to the microwave structure itself, it also includes an infrared sensing component (e.g., a first temperature detector 5). This infrared sensing component (or other detection structures) has the function of detecting the surface temperature of an object (area A is the working angle of the infrared sensor, and the temperature within this angle is effectively monitored). It also includes a microwave frying pan (e.g., a microwave heating pan 2), which has a built-in microwave absorbing material that absorbs the energy emitted by the microwaves from the lower cavity to heat the frying pan. The microwave frying pan emits heat energy (e.g.,...) onto the surface of the frying pan. Figure 1 (As shown by the middle arrow), it is used to heat the bottom of the food, providing a certain grilling function. The grilling tube (e.g., heating element 4) can radiate heat downwards (e.g., ... Figure 1 (As shown by the middle arrow), it is used to heat the upper surface of the food, and also includes a temperature sensor (e.g., a second temperature detection element 6) for monitoring the space temperature of the upper cavity.

[0098] The module operates as follows: an infrared module (e.g., the first temperature sensor 5) monitors the surface temperature of the microwave griddle, a temperature module (e.g., the second temperature sensor) monitors the air temperature in the upper cavity, and the main control unit (e.g., the control unit 7) controls the power output of the microwave generator 3 and the heating unit 4 based on the feedback temperatures from the infrared and temperature modules and the set temperature from the menu. This ultimately achieves the effect of grilling the bottom of the food in the microwave griddle while grilling the top surface with the grill tubes. This function is particularly suitable for grilled meat menus, such as those featuring steak.

[0099] Because the infrared module is located at the bottom of the cavity, where the surrounding space temperature is low, the microwave field is mainly absorbed by the microwave griddle, allowing the infrared module to effectively monitor the surface temperature of the microwave griddle. The temperature module is located at the top of the cavity, where the surrounding space temperature is higher, primarily due to the heat field from the grilling tube, allowing it to effectively monitor the ambient temperature of the upper cavity.

[0100] According to some embodiments of this application, the cooking appliance includes a microwave oven cavity (e.g., housing 1) for mounting microwave electrical components, the interior of the microwave cavity (e.g., cooking cavity 10) for placing food and baking trays, etc., and a microwave field cavity below the microwave oven for placing waveguides (e.g., waveguide 30) and other components. The cooking appliance also includes a microwave base plate, waveguides, magnetron 32, and a microwave computer unit (as the overall control center). The above contents constitute a microwave oven unit.

[0101] This microwave oven not only has a grilling function but also the ability to brown the surface of food. Therefore, in addition to the microwave structure itself, it also includes an infrared sensing component (e.g., a first temperature sensor 5), which detects the surface temperature of objects (area A is the working angle of the infrared sensor, and the temperature within this angle is effectively monitored). It also includes a microwave grilling plate (e.g., a microwave heating plate 2), which has built-in microwave-absorbing material to absorb the energy emitted by the microwaves from the lower cavity for heating the plate. The microwave grilling plate emits heat energy upwards to heat the bottom of the food, providing a certain grilling function. A grilling tube (e.g., a heating element 4) radiates heat downwards to heat the upper surface of the food. Finally, it includes a temperature sensor (e.g., a second temperature sensor 6) to monitor the temperature of the upper cavity.

[0102] like Figure 3 The diagram illustrates the wiring configuration of the built-in temperature sensor in the microwave oven frying pan. The signal line of the built-in temperature sensor (e.g., the first temperature detection element 5) primarily connects to a protruding terminal (e.g., the first terminal 54) and a contact point within the cavity (e.g., the second terminal 70). The outer side of the first terminal 54 is covered with an insulating shielding material (e.g., a microwave shielding layer 56). When the microwave oven frying pan is placed inside the appliance, its first terminal 54 connects to the signal contact point within the cavity. This allows the temperature sensor to connect to the circuitry of the microwave oven's control unit, thus providing feedback on the internal temperature of the microwave oven frying pan.

[0103] The module operates as follows: the first temperature sensor 5 monitors the surface temperature of the microwave griddle, the second temperature sensor monitors the air temperature in the upper cavity, and the main control unit (e.g., control unit 7) controls the power output of the microwave generator 3 and the heating unit 4 based on the feedback temperatures from the infrared and temperature modules and the set temperatures in the menu. This ultimately achieves the effect of grilling the bottom of the food in the microwave griddle while the top surface is grilled by the grilling tubes. This function is particularly suitable for grilled meat menus, such as those featuring steak.

[0104] The proposed cooking appliance, a microwave frying pan with a bottom-mounted infrared sensor (e.g., the first temperature detection element 5) and a built-in temperature sensor (e.g., the first temperature detection element), can effectively monitor the frying pan temperature in a closed loop while simultaneously activating the grilling and browning function, thus realizing the microwave oven function.

[0105] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0106] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do 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 one or more embodiments or examples.

[0107] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cooking utensil, characterized in that, include: A housing, the housing including a cooking cavity; A microwave heating plate is disposed inside the cooking cavity; A microwave generator, located in the housing, is used to feed microwaves to the microwave heating plate to heat the microwave heating plate. A heating element is disposed in the housing and located above the microwave heating plate, for supplying heat to the cooking cavity; A first temperature detection element is disposed in the housing and is used to detect the temperature value of the microwave heating plate; A second temperature detection element is disposed in the housing, located above the microwave heating plate, and is used to detect the temperature value of the cooking cavity; The control unit is connected to the first temperature sensor, the second temperature sensor, the heating unit, and the microwave generator, and is used to control the operation of the heating unit and the microwave generator based on the detection values ​​of the first temperature sensor and the second temperature sensor.

2. The cooking utensil according to claim 1, characterized in that, The first temperature detection element is located on the side of the microwave heating plate away from the heating part, and is used to detect the temperature value of the surface of the microwave heating plate.

3. The cooking utensil according to claim 2, characterized in that, The first temperature detection element is disposed on the side wall of the cooking cavity.

4. The cooking utensil according to claim 3, characterized in that, The first temperature sensor is located on the side of the cooking cavity near the control unit, and the first temperature sensor is tilted relative to the microwave heating plate so that the first temperature sensor is oriented toward the microwave heating plate.

5. The cooking utensil according to claim 4, characterized in that, The first temperature detection element includes a detection end, which is positioned toward the center of the microwave heating plate.

6. The cooking utensil according to claim 1, characterized in that, At least a portion of the first temperature sensing element is embedded in the microwave heating plate.

7. The cooking utensil according to claim 6, characterized in that, The first temperature detection element includes a detection part and a first terminal. The detection part is embedded in the microwave heating plate and connected to the first terminal. The detection part is used to detect the temperature value of the microwave heating plate. The control unit includes a second terminal. When the microwave heating plate is installed inside the cooking cavity, the first terminal is connected to the second terminal so that the first temperature detection element is electrically connected to the control unit.

8. The cooking utensil according to claim 7, characterized in that, The first terminal is embedded in the microwave heating plate, and the end of the first terminal is exposed on the periphery of the microwave heating plate; The second terminal is embedded in the side wall of the cooking cavity, and the end of the second terminal is exposed in the cooking cavity; When the microwave heating plate is installed inside the cooking cavity, the first terminal contacts the second terminal to electrically connect the first temperature sensing element to the control unit.

9. The cooking utensil according to claim 7, characterized in that, The first temperature sensing element further includes: A microwave shielding layer is provided, which surrounds the first terminal and the detection unit.

10. The cooking utensil according to claim 9, characterized in that, The microwave shielding layer includes an insulating shielding layer.

11. The cooking utensil according to any one of claims 1 to 10, characterized in that, The microwave heating plate includes a microwave absorbing material, which is used to absorb microwaves to generate heat in the microwave heating plate.

12. The cooking utensil according to any one of claims 1 to 10, characterized in that, The microwave generator is located below the microwave heating plate.

13. The cooking utensil according to claim 12, characterized in that, Also includes: A partition is disposed within the cooking cavity, below the microwave heating plate; the microwave generator includes a waveguide disposed below the partition; and / or The heating element includes at least one of a heating pipe and a hot air assembly; and / or The second temperature detection element is disposed on the side wall of the cooking cavity and is located on the side of the cooking cavity closer to the control unit.

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