Cooking utensil and cooking control method thereof

Abstract

The invention provides a cooking utensil and a cooking control method thereof, and belongs to the technical field of cooking equipment. According to the method, the temperatures of food materials at different depth positions can be detected in real time through a plurality of temperature detection devices with a multi-section probe distributed at equal intervals in the axial direction, so that complete temperature distribution data of the food materials from inside to outside in the cooking process can be obtained, and then the adjacent temperature difference between the temperatures detected by every two adjacent temperature detection devices is calculated; therefore, the cooking mode and / or the cooking parameters can be adjusted according to the difference value or the average value between the adjacent temperature differences, and the difference value or the average value between the adjacent temperature differences can accurately represent the transfer uniformity of heat in the food materials. The cooking mode and / or the cooking parameters are dynamically adjusted based on the transfer uniformity of the heat in the food materials, the problem of local over-cooking or over-cooking caused by uneven internal and external temperatures in traditional cooking can be effectively solved, and it is ensured that the optimal cooking effect is achieved.

Description

Technical Field

[0001] This application relates to the field of cooking appliance technology, and in particular to a cooking appliance and its cooking control method. Background Technology

[0002] With the development of science and technology and people's pursuit of a better life, more and more kitchens are equipped with ovens and other cooking equipment, making the cooking process more convenient.

[0003] Cooking appliances using related technologies, such as ovens, need to maintain a stable temperature range within the cavity for cooking. These technologies typically place temperature sensors inside the appliance to sense and control the cavity temperature, predicting the temperature at the cavity's center based on the internal temperature. However, this method cannot accurately determine the temperature of the food inside the cavity, potentially resulting in overcooked or undercooked food. Summary of the Invention

[0004] To address the aforementioned issues, this application proposes a cooking appliance and its cooking control method. Based on the temperature detected at different depths of the food by a multi-segment probe, the heat uniformity of the food at different depths is determined. Thus, the cooking mode and / or cooking parameters can be dynamically adjusted according to the heat uniformity, allowing different ingredients to achieve optimal cooking results.

[0005] To achieve the above objectives, a first aspect of this application provides a cooking control method for a cooking appliance, the cooking appliance comprising: The housing has a cooking cavity for holding cooking ingredients; A heating device is used to heat the interior of the cooking cavity; A temperature sensor is used to detect the temperature inside the cooking cavity; A multi-segment probe, wherein multiple temperature detection devices are equidistantly distributed along the axial direction, and the multi-segment probe is used to insert into food to detect the temperature at different depths of the food. The control method includes: The heating device is controlled to operate in order to heat the internal temperature of the cooking cavity to a set temperature; When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, the multi-segment probe is inserted into the food and the food is placed into the cooking cavity; After cooking for the set time according to the selected cooking mode, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated. Adjust the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences to achieve the best cooking results for the ingredients.

[0006] The above technical solution has the following advantages or beneficial effects: In this embodiment, multiple temperature detection devices with axially equidistantly distributed multi-segment probes can detect the temperature at different depths of the food in real time, thereby obtaining complete temperature distribution data of the food from the inside out during cooking. Compared with traditional single-point temperature measurement, this more accurately reflects the uniformity of the food's cooking. Next, the temperature difference between adjacent temperature detection devices is calculated. Based on the difference or average value between adjacent temperature differences, the cooking mode and / or cooking parameters can be adjusted to achieve a precise balance of heat between the inside and outside of the food, significantly improving the consistency of the food's texture. Specifically, the difference or average value between adjacent temperature differences accurately characterizes the uniformity of heat transfer within the food. Dynamically adjusting the cooking mode and / or cooking parameters based on the uniformity of heat transfer within the food dynamically adjusts the heat transfer speed within the food, ensuring a balance between the internal and external temperatures. This effectively solves the problem of localized overcooking or undercooking caused by uneven internal and external temperatures in traditional cooking, ensuring optimal cooking results.

[0007] In one embodiment of this application, the cooking appliance further includes: A microwave generator is used to deliver microwaves into the cooking cavity; Correspondingly, when the currently selected cooking mode is pure roasting mode, the adjustment of the cooking mode and / or cooking parameters based on the average value between adjacent temperature differences to achieve the best cooking effect for the ingredients includes: When the average value between adjacent temperature differences is greater than or equal to the first preset temperature, the cooking cavity is controlled to maintain the set temperature unchanged, the pure baking mode is switched to microwave mode, and the working power of the microwave generator is adjusted according to the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the greater the working power of the microwave generator. When the average value between adjacent temperature differences is less than 0, the system maintains the pure baking mode and lowers the set temperature. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first preset temperature, the control maintains the pure baking mode and the set temperature unchanged.

[0008] The above technical solution has the following advantages or beneficial effects: In this embodiment, for a cooking appliance with both grilling and microwave modes, when the currently selected cooking mode is pure grilling, if the average value between adjacent temperature differences is greater than or equal to a first preset temperature, it indicates an abnormal temperature gradient in the food, meaning the outer temperature of the food is higher than the inner temperature, indicating an imbalance in heat transfer. At this time, the cooking cavity is controlled to maintain the set temperature, and the pure grilling mode is switched to microwave mode to directly heat the inside of the food. The specific operating power of the microwave generator can be determined based on the temperature range of the average value between adjacent temperature differences. A larger average value indicates a greater temperature difference between the outer and inner sides of the food, requiring a correspondingly higher operating power from the microwave generator to compensate for more of the internal heat, quickly reducing the temperature difference and preventing the outside from burning while the inside remains uncooked. Conversely, a smaller average value indicates a smaller temperature difference between the outer and inner sides of the food, requiring a correspondingly lower operating power from the microwave generator to appropriately compensate for the internal heat, reducing the temperature difference and avoiding overheating. When the average value between adjacent temperature differences is less than 0, it indicates that the inner temperature of the food is higher than the outer temperature, meaning there is reverse heat flow (heat is transferred from the inside to the outside). At this point, the set temperature should be lowered to reduce the transfer of external heat to the inside of the food and prevent the inner temperature from rising further. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first preset temperature, it indicates that the temperature distribution inside and outside the food is relatively uniform, and no further intervention is needed. Continue heating using the current cooking parameters and cooking mode.

[0009] In one embodiment of this application, controlling and adjusting the operating power of the microwave generator based on the temperature range of the average value between adjacent temperature differences includes: When the average value between adjacent temperature differences is greater than or equal to the first preset temperature but less than the second preset temperature, the operating power of the microwave generator is controlled and adjusted to the first power. When the average value between adjacent temperature differences is greater than or equal to the second preset temperature but less than the third preset temperature, the operating power of the microwave generator is controlled and adjusted to the second power. When the average value between adjacent temperature differences is greater than or equal to the third preset temperature but less than the fourth preset temperature, the operating power of the microwave generator is controlled and adjusted to the third power. When the average value between adjacent temperature differences is greater than or equal to the fourth preset temperature but less than the fifth preset temperature, the operating power of the microwave generator is controlled and adjusted to the fourth power. When the average value between adjacent temperature differences is greater than or equal to the fifth preset temperature, the operating power of the microwave generator is controlled and adjusted to the fifth power, wherein the first power is less than the second power, less than the third power, less than the fourth power, and less than the fifth power.

[0010] The above technical solution has the following advantages or beneficial effects: In this embodiment, when the average value of adjacent temperature differences is in a low range (e.g., greater than or equal to the first preset temperature but less than the second preset temperature), the microwave generator uses low power for gentle heating to avoid overcooking the surface. As the average value of adjacent temperature differences increases (e.g., greater than or equal to the fifth preset temperature), the microwave generator automatically switches to high power to quickly compensate for internal temperature rise, thereby dynamically balancing the heating rate of the food inside and outside during cooking and effectively improving the problem of "burnt edges and undercooked center" in traditional microwave ovens. By establishing a precise correspondence between the temperature range of multi-level average temperature differences and microwave power, adaptive power adjustment based on the internal temperature gradient of the food can be achieved. Through five-level power step-by-step control, the damage to the cell structure of the food caused by power abrupt changes can be avoided, and the uniformity of cooking of thick-piece foods can be effectively improved.

[0011] In one embodiment of this application, the cooking appliance further includes: A microwave generator is used to deliver microwaves into the cooking cavity; A steam generator is used to supply steam into the cooking cavity; Correspondingly, when the currently selected cooking mode is pure steaming, the adjustment of the cooking mode and / or cooking parameters based on the average value between adjacent temperature differences to achieve the best cooking effect for the ingredients includes: When the average value between adjacent temperature differences is greater than or equal to the first set temperature, the control maintains the set temperature unchanged, switches the pure steam mode to micro steam mode, and adjusts the working power of the microwave generator and the working duty cycle of the steam generator according to the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the greater the working power of the microwave generator and the greater the working duty cycle of the steam generator. When the average value between adjacent temperature differences is less than 0, the pure steam mode and the set temperature are maintained, and the duty cycle of the steam generator is increased. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first set temperature, the control maintains the pure steam mode and the cooking parameters remain unchanged. The cooking parameters include the set temperature and the duty cycle of the steam generator.

[0012] The above technical solution has the following advantages or beneficial effects: In this embodiment, for a cooking appliance with grilling, microwave, and steam modes (such as a microwave-steam-grill combo), when the currently selected cooking mode is pure steam mode, if the average value between adjacent temperature differences is greater than or equal to the first set temperature, it indicates an abnormal temperature gradient in the food, meaning the outer temperature of the food is higher than the inner temperature, indicating an imbalance in heat transfer. At this time, the control switches the pure steam mode to microwave-steam mode to directly heat the inside of the food. The specific operating power of the microwave generator and the duty cycle of the steam generator can be determined based on the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the greater the temperature difference between the outer and inner sides of the food, requiring a correspondingly higher operating power for the microwave generator and a larger duty cycle for the steam generator. This compensates for more of the internal heat of the food, quickly reducing the temperature difference between the inside and outside. Simultaneously, the steam generator operates continuously with a large duty cycle, keeping the surface of the food moist and preventing the outside from burning while the inside remains uncooked. A small average value between adjacent temperature differences indicates a small temperature difference between the outer and inner sides of the food. This necessitates controlling the microwave generator to operate at a lower power and the steam generator to operate at a smaller duty cycle. This helps to compensate for the internal heat of the food, reducing the temperature difference between the inside and outside. Simultaneously, the steam generator operates continuously at a small duty cycle to keep the food surface moist, preventing overheating due to excessive compensation. When the average value between adjacent temperature differences is less than 0, it indicates that the inner temperature of the food is higher than the outer temperature, meaning there is reverse heat flow (heat is transferred from the inside to the outside). In this case, maintain the pure steam mode and increase the duty cycle of the steam generator to maintain steam heating. This helps to balance the internal and external temperatures of the food using the good penetrability of steam, preventing localized overheating. Increasing the duty cycle promotes more efficient heat conduction within the food, thus correcting the reverse temperature distribution. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first set temperature, it indicates that the internal and external temperature distribution of the food is relatively uniform. No further intervention is needed; continue heating using the current cooking parameters and mode.

[0013] In one embodiment of this application, controlling and adjusting the operating power of the microwave generator and the duty cycle of the steam generator based on the temperature range of the average value between adjacent temperature differences includes: When the average value between adjacent temperature differences is greater than or equal to the first set temperature but less than the second set temperature, the operating power of the microwave generator is controlled and adjusted to the first power, and the operating duty cycle of the steam generator is controlled and adjusted to the first duty cycle. When the average value between adjacent temperature differences is greater than or equal to the second set temperature but less than the third set temperature, the operating power of the microwave generator is controlled and adjusted to the second power, and the operating duty cycle of the steam generator is controlled and adjusted to the second duty cycle. When the average value between adjacent temperature differences is greater than or equal to the third set temperature but less than the fourth set temperature, the operating power of the microwave generator is controlled and adjusted to the third power, and the operating duty cycle of the steam generator is controlled and adjusted to the third duty cycle. When the average value between adjacent temperature differences is greater than or equal to the fourth set temperature, the operating power of the microwave generator is controlled and adjusted to the fourth power, and the operating duty cycle of the steam generator is controlled and adjusted to the fourth duty cycle, wherein the first power is less than the second power, less than the third power, and less than the fourth power, and the first duty cycle is less than the second duty cycle, less than the third duty cycle, and less than the fourth duty cycle.

[0014] The above technical solution has the following advantages or beneficial effects: In this embodiment, by dividing the average value of adjacent temperature differences into four gradient intervals and correspondingly setting progressively increasing microwave power (first power to fourth power) and steam duty cycle (first duty cycle to fourth duty cycle), precise dynamic control of the food heating process is achieved. When the average value of adjacent temperature differences is larger, higher power microwaves and a larger duty cycle steam are automatically matched to more efficiently compensate for the internal heat of the food, quickly reduce the internal and external temperature difference, and maintain the surface moisture of the food; conversely, lower power and duty cycle are used to avoid overheating. This stepped control strategy ensures uniform heating of the food inside and out, achieving optimal cooking results, while avoiding energy waste and instability caused by frequent adjustments to cooking parameters, significantly improving cooking efficiency and quality.

[0015] In one embodiment of this application, the cooking appliance further includes: A microwave generator is used to deliver microwaves into the cooking cavity; The multi-segment probe has three temperature detection devices evenly distributed along the axial direction. The multi-segment probe is used to insert into the food to detect the internal temperature, middle temperature and external temperature of the food respectively. Correspondingly, the adjustment of cooking modes and / or cooking parameters based on the difference between adjacent temperature differences to achieve optimal cooking results for the ingredients includes: When the difference between the first temperature difference between the external temperature and the internal temperature of the food and the second temperature difference between the internal temperature and the internal temperature is greater than the first set temperature, the set temperature is controlled to be reduced. When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is greater than the second set temperature, the set temperature is maintained unchanged, and the microwave generator is activated to increase the internal temperature of the food. When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is less than 0, the set temperature is controlled to be increased. When the difference between the first temperature difference between the external temperature and the internal temperature of the food and the second temperature difference between the internal temperature and the internal temperature is equal to 0, the current cooking mode and / or cooking parameters remain unchanged.

[0016] The above technical solution has the following advantages or beneficial effects: In this embodiment, a multi-segment probe monitors the temperature of the food at three locations in real time: the exterior, middle, and interior. Cooking parameters are intelligently adjusted based on the dynamic difference between adjacent temperature ranges (i.e., the temperature difference between the exterior and middle, and the temperature difference between the middle and interior). When the exterior temperature is detected to be significantly higher than the interior temperature (i.e., the temperature difference is greater than a first set temperature), the set temperature is automatically lowered to prevent overcooking on the exterior. If the temperature difference further increases (greater than a second set temperature), a microwave generator is activated to heat from the interior, quickly balancing the interior and exterior temperatures. If a reverse temperature difference occurs (the temperature difference is less than 0), the set temperature is increased to promote heat transfer from the inside out. When the temperature difference is 0, the current cooking parameters and / or cooking mode are maintained to ensure stable heating. This closed-loop control strategy based on temperature gradients can accurately address the heating characteristics of different foods, effectively solving the problems of "burnt outside, raw inside" or "uneven cooking" in traditional cooking, ensuring the food achieves optimal cooking results with even cooking throughout, while improving energy efficiency and cooking stability.

[0017] In one embodiment of this application, the method further includes: After adjusting the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences and running for a preset time, monitor whether the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature. If the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature, then cooking ends; If the temperature value detected by the temperature detection device of the multi-segment probe head is less than the target temperature, the process returns to the step of obtaining the temperature detected by each temperature sensor in the multi-segment probe and calculating the adjacent temperature difference between each pair of adjacent temperature detection devices, so as to continue to adjust the cooking mode and / or cooking parameters based on the difference or average value between each adjacent temperature difference.

[0018] The above technical solution has the following advantages or beneficial effects: After adjusting the cooking mode and / or cooking parameters based on the differences or average values ​​between adjacent temperature differences and running for a set duration, the temperature detected by the multi-segment probe head is monitored to see if the target temperature has been reached, i.e., whether the outermost temperature of the food has reached the target temperature. If the outermost temperature of the food reaches the target temperature, cooking is complete, and cooking is stopped to ensure that the core of the food is fully cooked and to avoid overheating. If the outermost temperature of the food has not reached the target temperature, the food is not yet cooked. In this case, the temperature of the food at different depths from the inside to the outside, detected by the multi-segment probe, is continuously acquired to continue adjusting the cooking mode and / or cooking parameters based on the differences or average values ​​between adjacent temperature differences. This cycle continues until the outermost temperature of the food reaches the target temperature, at which point cooking ends. By setting the monitoring of the outermost temperature of the food after each adjustment of the cooking mode and / or cooking parameters based on the differences or average values ​​between adjacent temperature differences and running for a set duration, timely response to temperature changes is achieved, while avoiding instability in the cooking process caused by frequent adjustments to the cooking mode and / or cooking parameters.

[0019] To achieve the above objectives, a second aspect of this application provides a cooking utensil, comprising: The housing has a cooking cavity for holding cooking ingredients; A heating device is used to heat the interior of the cooking cavity; A temperature sensor is used to detect the temperature inside the cooking cavity; A multi-segment probe, wherein multiple temperature detection devices are equidistantly distributed along the axial direction, and the multi-segment probe is used to insert into food to detect the temperature at different depths of the food. The controller, connected to the heating device, the temperature sensor, and the multi-segment probe, is used to perform the following steps: The heating device is controlled to operate in order to heat the internal temperature of the cooking cavity to a set temperature; When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, the multi-segment probe is inserted into the food and the food is placed into the cooking cavity; After cooking for the set time according to the selected cooking mode, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated. Adjust the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences to achieve the best cooking results for the ingredients.

[0020] The above technical solution has the following advantages or beneficial effects: In this embodiment, multiple temperature detection devices with axially equidistantly distributed multi-segment probes can detect the temperature at different depths of the food in real time, thereby obtaining complete temperature distribution data of the food from the inside out during cooking. Compared with traditional single-point temperature measurement, this more accurately reflects the uniformity of the food's cooking. Next, the temperature difference between adjacent temperature detection devices is calculated. Based on the difference or average value between adjacent temperature differences, the cooking mode and / or cooking parameters can be adjusted to achieve a precise balance of heat between the inside and outside of the food, significantly improving the consistency of the food's texture. Specifically, the difference or average value between adjacent temperature differences accurately characterizes the uniformity of heat transfer within the food. Dynamically adjusting the cooking mode and / or cooking parameters based on the uniformity of heat transfer within the food dynamically adjusts the heat transfer speed within the food, ensuring a balance between the internal and external temperatures. This effectively solves the problem of localized overcooking or undercooking caused by uneven internal and external temperatures in traditional cooking, ensuring optimal cooking results.

[0021] In one embodiment of this application, the cooking appliance further includes: A microwave generator is used to deliver microwaves into the cooking cavity; A steam generator is used to supply steam into the cooking cavity; The microwave generator and the steam generator are respectively electrically connected to the controller.

[0022] The above technical solution has the following advantages or beneficial effects: In this embodiment, the cooking appliance includes a microwave generator and a steam generator, both of which are electrically connected to a controller, enabling diversified control of the heat source types within the cooking cavity. By leveraging the rapid heating characteristics of microwaves and the uniform penetration characteristics of steam, combined with the controller's synergistic regulation of the two heat sources, cooking efficiency and food texture can be significantly improved. Furthermore, multi-heat source combination modes (such as microwave + steam composite heating) can effectively solve the problem of uneven cooking inside and outside the food caused by traditional single heating methods, providing more precise adaptability to different ingredients (such as seafood and pastries).

[0023] In one embodiment of this application, the cooking appliance further includes: The display device is used to display the currently running cooking mode and the corresponding cooking parameters; A communication module is provided, which is connected to both the controller and the multi-segment probe. The multi-segment probe is connected to external devices through the communication module.

[0024] The above technical solution has the following advantages or beneficial effects: In this embodiment, the cooking appliance also includes a display device and a communication module. The display device can show the current cooking mode (such as baking, steaming, etc.) and key parameters (temperature, time, etc.) in real time, allowing users to intuitively grasp the cooking status. The communication module connects to a multi-segment probe and external devices (such as a mobile APP or smart home system), supporting remote monitoring of the internal temperature distribution of ingredients (such as displaying axial temperature difference through a curve) and receiving cooking completion reminders. It also provides the hardware foundation for subsequent cloud storage and analysis of cooking data (such as optimizing personalized recipes), thereby further expanding the intelligent interconnection function of the cooking appliance while improving operational convenience.

[0025] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0027] Figure 1 This is a structural diagram of an oven provided in one embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of a multi-segment probe provided in an embodiment of this application.

[0029] Figure 3 This is an exploded view of the internal structure of an oven provided in one embodiment of this application.

[0030] Figure 4 This is an embodiment provided by this application. Figure 3 Enlarged view of a portion of point A in the middle.

[0031] Figure 5 This is a schematic diagram showing the connection between the oven controller and other devices provided in one embodiment of this application.

[0032] Figure 6 This is a first flowchart of a cooking control method provided in an embodiment of this application.

[0033] Figure 7 This is a second flowchart of a cooking control method provided in an embodiment of this application.

[0034] Figure 8 This is the third flowchart of the cooking control method provided in Embodiment 1 of this application.

[0035] Figure 9 This is a flowchart illustrating the steps of controlling and adjusting the operating power of a microwave generator based on the temperature range of the average value between adjacent temperature differences, according to an embodiment of this application.

[0036] Figure 10 This is the fourth flowchart of the cooking control method provided in Embodiment 1 of this application.

[0037] Figure 11 This is a flowchart illustrating the steps of controlling and adjusting the operating power of a microwave generator and the duty cycle of a steam generator based on the temperature range of the average value between adjacent temperature differences, according to an embodiment of this application.

[0038] Figure 12 This is the fifth flowchart of a cooking control method provided in an embodiment of this application.

[0039] Figure label: 1. Oven; 10. Oven body; 20. Cooking cavity; 30. Door; 40. Heating device; 50. Temperature sensor; 60. Multi-segment probe; 61. Probe; 62. Handle; 611. Temperature detection device; 621. Converter; 63. Wire; 70. Receiver; 80. Display device; 90. Communication module; 100. Controller. 2. Inner cavity assembly; 3. Steam generator; 4. Grilling generator; 5. Ventilation device; 6. Microwave generator; 7. Air guide system; 21. Microwave-steam module; 22. Steam-grill module; 73. Partition; 8. Fixing plate; 9. Side strip; 11. Water tank; 31. Steam generator; 41. Top heating element; 42. Back heating element; 43. Bottom heating element; 44. Circulating fan. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0041] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0043] Currently, cooking appliances rely solely on the ambient temperature of the cooking cavity or a single-point probe to detect the temperature at the center of the food. This makes it difficult to accurately perceive the temperature gradient distribution at different depths within the food, resulting in an inability to dynamically determine the actual cooking state of the food (such as the center being undercooked while the surface is overcooked). Consequently, this leads to unstable cooking results and poor consistency in the taste of the food.

[0044] Specifically, existing technologies lack the ability to monitor and dynamically adjust the heat conduction process inside ingredients in real time, and cannot optimize cooking parameters according to changes in temperature gradients (such as adjacent temperature differences), making it difficult to guarantee the uniformity of cooking for complex ingredients (such as thick-cut steaks and whole chickens).

[0045] Based on this, this application provides a cooking appliance and its cooking control method, which determines the heat uniformity of the food at different depths based on the temperature detected by a multi-segment probe. Thus, the cooking mode and / or cooking parameters can be dynamically adjusted according to the heat uniformity, allowing different foods to achieve the best cooking results.

[0046] The cooking appliances in this application embodiment can be ovens, gas ovens, steam ovens, microwave ovens, steam ovens, microwave ovens, integrated stoves with oven functions, etc. The following uses an oven as an example to describe in detail the technical solution for the improvement of the cooking appliances in this application embodiment.

[0047] Reference Figure 1 , Figure 1 This is a structural diagram of an oven provided in one embodiment of this application. The oven 1 includes: a housing 10, a cooking cavity 20, a door 30, a heating device 40, a temperature sensor 50, a multi-segment probe 60, and a controller. Figure 1 (Not shown in the image). The heating device 40, temperature sensor 50, and multi-segment probe 60 are all connected to the controller.

[0048] Among them, the box 10 can be as follows Figure 1 The approximate cuboid shown can also be other shapes.

[0049] The cooking cavity 20 is disposed within the housing 10, and an open baking cavity is formed inside the cooking cavity 20, in which ingredients that need to be processed in an oven can be placed. There is a receiving cavity between the cooking cavity 20 and the housing 10, which can accommodate electrical components.

[0050] One end of the door 30 is rotatably connected to the housing 10, while the other end is free. When the door 30 is closed, it covers the opening of the cooking cavity and forms a cooking cavity 20 with the housing 10. For example, when cooking is required, the cooking cavity 20 is opened using the door 30, the food to be cooked is placed into the cooking cavity 20, and then the door 30 is closed. In this way, a sealed space is formed after the door 30 is closed, which not only reduces heat dissipation but also avoids safety hazards such as burns caused by accidental contact by the user.

[0051] The heating device 40 is disposed on the cooking cavity 20 for heating the food placed inside the cooking cavity 20. For example, the heating device 40 may be an infrared heating tube, a resistance heating tube, a graphene heating tube, a carbon fiber heating tube, etc. The heating device 40 may be arranged above, below, or inside the oven 1 opposite the door 30. The heating device 40 may also be equipped with a fan to enhance convection heat transfer.

[0052] In some embodiments, the heating device 40 may intermittently turn on or off heating according to a temperature control method to ensure that the temperature inside the cooking cavity 20 is consistent with the set temperature.

[0053] For example, when the set temperature is 220°C, the heating device 40 continues to heat until the temperature inside the cavity reaches 225°C and then stops. When the temperature inside the cavity is detected to be below 215°C, heating is started again to ensure that the temperature inside the cavity is maintained at around 220°C.

[0054] A temperature sensor 50 can be installed inside the cooking cavity 20 to detect the temperature inside the cooking cavity. For example, if the set temperature is 220°C, the heating device 40 can continuously heat the food, causing the temperature inside the cooking cavity 20 to rise. When the temperature sensor 50 detects that the temperature inside the cooking cavity 20 has risen to 220°C, the heating device 40 can be controlled to stop heating.

[0055] Reference Figure 2 , Figure 2 This is a schematic diagram of a multi-segment probe according to an embodiment of this application. The multi-segment probe 60 includes a probe 61 and a handle 62 connected to the probe 61. Multiple temperature sensing devices 611 are equidistantly distributed along the axial direction on the probe 61. The probe 61 is used to insert into food so that the multiple temperature sensing devices 611 sense the temperature at multiple locations at different depths of the food. The handle 62 includes a transducer 621, which is electrically connected to the multiple temperature sensing devices 611 and is used to wirelessly transmit the temperature signals sensed by the multiple temperature sensing devices 611 to a preset device.

[0056] The multi-segment probe 60 can be a wired probe or a wireless probe. In this embodiment, the multi-segment probe 60 is a wireless probe. The wireless probe uses the converter 621 to enable wireless data transmission between the temperature detection device 611 and the external device. There is no wire between the wireless probe and the external device. Using a wireless probe is more convenient and flexible. It is convenient for users to use and store, and it can also avoid the wiring process, which is conducive to improving the production efficiency of wireless probes.

[0057] Furthermore, the preset device is a device that is pre-set and used to receive the temperature signal detected by the multi-segment probe 60. More specifically, the preset device can be a device independent of the multi-segment probe 60, a receiver on the oven 1 used in conjunction with the multi-segment probe 60, or a display for showing the temperature. There are no limitations on this. The preset device can also be an electronic terminal wirelessly connected to the multi-segment probe 60, such as a mobile phone or tablet computer. The preset device can also be a combination of two or more of the devices listed above.

[0058] In some embodiments, the transducer 621 includes an antenna, and the temperature detection device 611 includes a surface acoustic wave (SAW) temperature sensor. The antenna wirelessly transmits the temperature signal sensed by the SAW temperature sensor to a preset device. This enables wireless data transmission between the multi-segment probe 60 and an external device.

[0059] It can be understood that the surface acoustic wave (SAW) temperature sensor and antenna form a device for emitting electromagnetic waves. The SAW temperature sensor's response to temperature changes affects the frequency of the electromagnetic waves emitted by the antenna. Thus, data can be wirelessly transmitted between the multi-segment probe 60 and external devices.

[0060] Please note that the temperature signal propagates as an electrical signal between the surface acoustic wave temperature sensor and the antenna. The antenna can convert the electrical signal into an electromagnetic wave signal, thus allowing the temperature signal to propagate as an electromagnetic wave signal between the antenna and the external device. In other words, the temperature signal propagates as an electromagnetic wave signal between the multi-segment probe 60 and the external device. There is no wiring between the multi-segment probe 60 and the external device; data transmission between them is wireless. Furthermore, the electromagnetic wave signal can be a high-frequency electromagnetic wave signal with long-distance transmission capabilities, i.e., a radio frequency signal.

[0061] In some implementations, the temperature signals from multiple surface acoustic wave (SAW) temperature sensors are transmitted at different frequency bands. This avoids crosstalk between the temperature signals from multiple SAW temperature sensors. Furthermore, because the temperature signals from multiple SAW temperature sensors are transmitted at different frequency bands, external devices can distinguish the temperature signals transmitted by different SAW temperature sensors, thereby determining the temperature of different locations on the food.

[0062] In some embodiments, refer to Figure 2 The multi-segment probe 60 may include multiple wires 63, each wire 63 connecting the transducer 621 and a corresponding temperature sensing device 611. In this way, electrical connection is achieved between the transducer 621 and the multiple temperature sensing devices 611.

[0063] In one example, the multi-segment probe 60 includes three temperature detection devices 611 and three wires 63, with each wire 63 corresponding to one temperature detection device 611; in another example, the multi-segment probe 60 includes five temperature detection devices 611 and five wires 63, with each wire 63 corresponding to one temperature detection device 611.

[0064] It is worth noting that the "multiple wires" here can be packaged into one bundle or several bundles, and multiple temperature sensing devices 611 can also share a single wire. In one example, the multi-segment probe 60 includes 5 temperature sensing devices 611 and 5 wires 63, with each wire 63 corresponding to one temperature sensing device 611, and the 5 wires are packaged into one bundle; in another example, the multi-segment probe 60 includes 5 temperature sensing devices 611 and 5 wires 63, with each wire 63 corresponding to one temperature sensing device 611, where 2 wires are packaged into one bundle, and the remaining 3 wires are packaged into another bundle.

[0065] Additionally, an insulating sleeve (not shown) can be installed on the outside of the conductor 63 to protect and support the conductor 63 while preventing leakage. The insulating sleeve can be installed on the outside of each conductor 63, and multiple conductors 63 can also be encapsulated into one or several bundles using insulating sleeves. There are no restrictions on this.

[0066] Furthermore, insulating material can be filled around the connection between the conductor 63 and the converter 621. This improves safety and measurement accuracy while also making the connection between the conductor 63 and the converter 621 more secure.

[0067] Furthermore, the multi-segment probe 60 can be made into cooking aids. In one example, the multi-segment probe 60 can be made into a grill, allowing the user to pass the probe 60 through food and hold it directly while cooking. In another example, the multi-segment probe 60 can be made into a rotating grill, allowing the user to pass the probe 60 through food and place it on a support that rotates the grill before cooking. In yet another example, the user can insert the multi-segment probe 60 directly into food and keep it inserted during cooking to monitor the temperature changes of the food in real time. Please note that the cooking aids and applications of the multi-segment probe 60 are not limited to the examples above.

[0068] Reference Figure 1The oven 1 includes a receiver 70 and a display device 80. The receiver 70 is connected to the display device 80. The receiver 70 is used to receive temperature signals transmitted by the multi-segment probe 60, and the display device 80 is used to display the temperature based on the temperature signals. In this way, the temperature can be observed by the user. The display device 80 can also display the current cooking mode (such as baking, steaming, etc.) and key parameters (temperature, time, etc.) in real time, allowing the user to intuitively grasp the cooking status.

[0069] In some embodiments, the oven 1 may include a motor (not shown) and a mounting bracket (not shown), with a multi-segment probe 60 rotatably mounted on the mounting bracket. The end of the multi-segment probe 60 away from the handle 62 is connected to the motor. Thus, the multi-segment probe 60 can function as a rotating bracket, enabling multi-point temperature measurement while rotating.

[0070] Furthermore, the motor can be a rotary motor, positioned between the cooking cavity 20 and the housing 10, and connected to probe 62 of the multi-segment probe 60. The multi-segment probe 60 can rotate in a specific direction under the motor's drive. In use, the user can skewer food, such as chicken, onto the multi-segment probe 60, insert one end of probe 61 into the motor, place one end of the handle 14 of the multi-segment probe 60 on the mounting bracket, and then close the door 30 to begin grilling. During grilling, the multi-segment probe 60 can detect the temperature at different depths of the food, and the corresponding temperatures can be displayed in real-time on the display device 80, thus assisting the user in grilling.

[0071] In some embodiments, refer to Figure 1 The oven 1 may also include a communication module 90, which is disposed within a cavity between the oven body 10 and the cooking cavity 20. The communication module 90 is used to communicate with the collaborative cooking equipment or an external server according to various communication protocol types. The communication module 90 is connected to both the controller and the multi-segment probe 60.

[0072] In some embodiments, the communication module 90 may include at least one of a Wi-Fi chip, a Bluetooth communication protocol chip, a wired Ethernet communication protocol chip, or other network communication protocol chips or near-field communication protocol chips, as well as an infrared receiver, so that the controller and the multi-segment probe 60 can establish communication with the collaborative cooking device through the communication module 90.

[0073] In some embodiments, the communication module 90 can also be used to establish a communication connection with a mobile terminal device. The mobile terminal device has an oven control application installed, allowing the user to select control commands within the application, thus enabling the oven to execute the corresponding operation. Optionally, the mobile terminal device can be a mobile phone, tablet, or laptop, etc. The multi-segment probe 60 can establish a communication connection with the mobile terminal device through the communication module 90, supporting remote monitoring of the internal temperature distribution of food (e.g., displaying axial temperature difference via a graph) and receiving cooking completion reminders. It also provides the hardware foundation for subsequent cloud storage and analysis of cooking data (e.g., optimizing personalized recipes).

[0074] For example, a user can select a smart recipe in an oven control app on their mobile phone, and establish a communication connection between the oven and the collaborative cooking device to be used in the recipe through the communication module 90.

[0075] Reference Figure 3 and Figure 4 , Figure 3 This is an exploded view of the internal structure of an oven provided in one embodiment of this application. Figure 4 This is an embodiment provided by this application. Figure 3 A partial enlarged view at point A. The oven 1 includes a housing 10, which contains an inner cavity assembly 2, a steam generator 3, a grilling generator 4, an exhaust fan 5 for releasing steam, and a controller. The inner cavity assembly 2 is divided into upper and lower or left and right spaces. In this embodiment 1, the upper layer is a micro-steam module 21, and the lower layer is a steam-grill module 22. The micro-steam module 21 and the steam-grill module 22 are fixedly connected together, making disassembly and installation convenient and facilitating product upgrades and iterations.

[0076] like Figure 3 As shown, specifically, the microwave steaming module 21 is equipped with a microwave generator 6, which is used to provide microwave heating to the food in the upper microwave steaming module 21; the steam generator 3 is used to provide steam to the microwave steaming module 21 and the steam-baking module 22, and the steam generator 3 is connected to the microwave generator 6 to provide microwave and steam heating to the microwave steaming module 21, so as to avoid the food losing moisture on the surface due to microwave heating or to avoid the food surface becoming soft and collapsed due to excessive moisture being squeezed out by steam heating.

[0077] Therefore, to prevent the food from drying out or becoming too wet, the controller activates the microwave generator 6 and the steam generator 3 simultaneously to provide microwave heating and steam heating.

[0078] When microwave generator 6 is used, steam generator 3 operates in auxiliary heating mode; when steam generator 3 is used as the primary heating element, microwave generator 6 assists in heating to improve heating efficiency. This structure improves the heating efficiency of food while ensuring that the surface of the food does not dry out or become soggy.

[0079] See Figure 3 and Figure 4 As shown, the oven 1 further includes a ventilation system 7, which is located between the microwave steam module 21 and the steam-bake module 22. The ventilation system 7 can draw in outside air to cool the internal temperature of the microwave steam-bake oven 10, and can also draw in the water vapor emitted by the steam-bake module 22 below to prevent water vapor from hitting the user's face and burning them. The drawn water vapor is discharged from the top of the microwave steam-bake oven through the ventilation system and the exhaust device, so that the steam generated by the steam-bake module 22 will not be directly emitted upward, and at the same time, it will prevent the steam from condensing on the door of the upper cavity.

[0080] like Figure 3 As shown, the bottom of the microwave steam module 21 is further provided with a partition 73. The microwave steam module 21 and the steam oven module 22 are interlocked and fixed together by the partition 73 and screws or other fixed connections. This is mainly achieved by fixing the front flange of the partition 73 at the bottom of the microwave steam module 21 to the front frame of the steam oven module 22. The partition 73 separates the microwave steam module 21 and the steam oven module 22 into layers, which can play a role in heat insulation and prevent damage. In addition, the partition 73 makes it easier to pick up, put down and install the microwave steam module 21 and the steam oven module 22, and makes it easier to update and iterate.

[0081] In some embodiments, the microwave generator 6, the steam generator 3, and the barbecue generator 4 are respectively connected to a controller, which can control any one of the microwave generator 6, the steam generator 3, and the barbecue generator 4 to start individually, or control any two or more of the microwave generator 6, the steam generator 3, and the barbecue generator 4 to start simultaneously.

[0082] like Figure 3 and Figure 4 As shown, the back of the microwave steam module 21 is connected to the back of the steam oven module 22 via an L-shaped fixing piece 8 and screws and nuts. The left and right sides of the microwave steam module 21 and the steam oven module 22 are stably reinforced by side strips 9. The microwave steam module 21 and the steam oven module 22 are fixedly connected together, which serves to reinforce them. The side strips 9 on the left and right sides stably reinforce the microwave steam module 21 and the steam oven module 22.

[0083] The installation methods of the microwave steaming module 21 and the steam baking module 22 described above make installation and disassembly of both more convenient, facilitating product upgrades and iterations.

[0084] like Figure 3As shown, the oven 1 may also include a water tank 11, and the steam generating device 3 includes at least two steam generators 31; the water outlet of the water tank 11 is connected to the water inlet of the steam generator 31, and the water in the water tank 11 is discharged into the steam generator 31, and after steam is generated, it is discharged into the air inlet of the micro-steam module 21 and the steam-baking module 22 for heating the food.

[0085] The exhaust ports of the microwave steaming module 21 and the steam baking module 22 are connected to the water tank 11. The steam is discharged into the water tank 11 and condenses into water, preventing the steam from being discharged directly. This has a lower safety factor and can also prevent kitchen utensils, such as wooden furniture like kitchen cabinets, from being corroded by steam.

[0086] like Figure 3 As shown, the steam generating device 3 may also include two steam generators 31, which are respectively installed in the micro-steam module 21 and the steam-baking module 22. When the steam generator 31 is installed in the micro-steam module 21, the steam generator 31 works together with the microwave generator 6. The steam generated by the steam generator 31 is discharged into the air inlet of the micro-steam module 21, and the microwave generator 6 provides microwave heating, which can improve the heating efficiency of food by more than 50% compared with the past.

[0087] When the steam generator 31 is installed in the steam-roasting module 22, it can increase the application functions of the steam-roasting module 22, expand the scope of use of the product, increase the versatility of the product, and improve the heating efficiency of food.

[0088] like Figure 3 and Figure 4 As shown, the water tank 11 and the microwave generator 6 are both fixedly installed on the right side of the micro-steam module 21. The water tank 11 is connected to the exhaust port of the micro-steam module 21 and to the water inlet of the steam generator 31, and is used for steam condensation and to provide the water required for steam.

[0089] See Figure 3 As shown, the water tank 11 is connected to the water inlet of the steam generator 31 to generate steam; with this water tank 11 structure, water and wastewater can be separated, resulting in a cleaner and more hygienic cooking environment.

[0090] See Figure 3 As shown, the grilling device 4 may include a top heating pipe 41, a back heating pipe 42, a bottom heating pipe 43, and a circulating fan 44. The top heating pipe 41, the back heating pipe 42, and the bottom heating pipe 43 are respectively installed on the inner top, back, and outer bottom of the steaming and grilling module 22. The top heating pipe 41 is located below the partition 73, and the circulating fan 44 is located on the baffle on the back of the steaming and grilling module 22. The circulating fan 44 and the back heating pipe 42 form a circulating air chamber. The use of top, back and bottom heating tubes 43 enables the steam-grill module 22 to provide a more even and comprehensive grilling mode, while saving internal space and significantly improving heating efficiency.

[0091] It should be noted that the aforementioned heating device 40 can be regarded as the barbecue generating device 4 here.

[0092] The oven 1 has multiple working modes. The microwave steam module 21 and the steam-bake module 22 can work independently or simultaneously. When the microwave steam module 21 works independently, it can provide steam-assisted heating during microwave heating to prevent the food surface from drying out and improve the texture of the food. It can also provide microwave-assisted heating during steam heating to improve cooking efficiency and speed up the cooking process.

[0093] Reference Figure 5 , Figure 5 This is a schematic diagram showing the connection between the oven controller and other devices according to an embodiment of this application. The heating device 40 (i.e., the grilling device 4), temperature sensor 50, receiver 70, display device 80, communication module 90, steam generator 3, and microwave generator 6 are electrically connected to the controller 100. The multi-segment probe 60 is connected to the receiver 70 and also to the communication module 90, thus allowing the multi-segment probe 60 and the controller 100 to connect to external devices via the communication module 90.

[0094] Controller 100 refers to a device that can generate operation control signals based on instruction opcodes and timing signals to instruct oven 1 to execute control instructions. Exemplarily, controller 100 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The controller can also be other devices with processing functions, such as circuits, devices, or software modules; this application embodiment does not impose any limitations on this.

[0095] Reference Figure 6 , Figure 6 This is a first flowchart of a cooking control method provided in an embodiment of this application, which is executed by the controller 100 of the cooking appliance (oven 1) provided in the embodiment of this application, including but not limited to steps S610 to S640.

[0096] Step S610: Control the heating device to operate and heat the temperature inside the cooking cavity to the set temperature; Step S620: When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, insert the multi-segment probe into the food and put the food into the cooking cavity. Step S630: After cooking for the set time according to the selected cooking mode, obtain the temperature detected by each temperature sensor in the multi-segment probe, and calculate the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices. Step S640: Adjust the cooking mode and / or cooking parameters according to the difference or average value between adjacent temperature differences to achieve the best cooking effect for the ingredients.

[0097] In this embodiment, the cooking cavity is first preheated to a set temperature using a heating device. During preheating, a temperature sensor monitors the temperature changes inside the cooking cavity in real time. Preheating is successful when the detected temperature reaches the set temperature. For example, roasting a chicken requires heating the cooking cavity to 200°C, while steaming fish requires heating it to 100°C. After successful preheating, the oven door is opened, a multi-segment probe is inserted into the key location of the food, and then the door is closed to start the cooking program. Because the multi-segment probe has multiple temperature detection devices evenly distributed axially, the temperature at different depths of the food can be monitored in real time during cooking. The temperature detection devices can be thermistors or thermocouples.

[0098] After cooking for the selected cooking mode and set time, such as 20 minutes for roast chicken in pure roast mode or 5 minutes for steamed fish in pure steam mode, the temperature detected by each temperature sensor in the multi-segment probe is acquired, and the temperature difference between adjacent temperature detection devices is calculated. Based on the difference or average value between adjacent temperature differences, the cooking mode and / or cooking parameters can be adjusted to achieve the best cooking effect for the food. The difference or average value between adjacent temperature differences accurately characterizes the uniformity of heat transfer within the food. Dynamically adjusting the cooking mode and / or cooking parameters based on the uniformity of heat transfer within the food dynamically adjusts the heat transfer rate, allowing the internal and external temperatures of the food to reach equilibrium.

[0099] In this embodiment, because the multi-segment probe has multiple temperature detection devices evenly distributed axially, it can achieve real-time temperature monitoring of different depth regions inside the food, thereby obtaining complete temperature distribution information from the core to the surface of the food. Compared with the traditional single-detection-point temperature measurement method, this scheme can more accurately assess the uniformity of heating of the food. By calculating the adjacent temperature difference between each pair of adjacent temperature detection devices of the multi-segment probe, and combining the differences or average values ​​between each adjacent temperature difference, the cooking mode and related cooking parameters can be dynamically adjusted, which can promote the rational distribution of heat between the inner and outer layers of the food. By analyzing the numerical characteristics of adjacent temperature differences, the uniformity of heat transfer inside the food can be accurately determined, and the heating strategy can be optimized in real time accordingly. This can effectively coordinate the temperature balance between the inside and the surface of the food, significantly improve the phenomenon of local undercooking or overcooking caused by uneven heating, and thus ensure that the cooking effect reaches the best state.

[0100] Reference Figure 7 , Figure 7 This is a second flowchart of a cooking control method provided in an embodiment of this application, which is executed by the controller 100 of the cooking appliance (oven 1) provided in the embodiment of this application, including but not limited to steps S710 to S7100.

[0101] Step S710: Control the heating device to operate and heat the temperature inside the cooking cavity to the set temperature; Step S720: When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, insert the multi-segment probe into the food and put the food into the cooking cavity. Step S730: Cook according to the selected cooking mode; Step S740: Determine whether the cooking time according to the selected cooking mode is greater than or equal to the set time. In step S750, if the cooking time in the selected cooking mode is greater than or equal to the set time, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated; if the cooking time in the selected pure baking mode is less than the set time, the process returns to step S730. Step S760: Adjust the cooking mode and / or cooking parameters based on the difference or average value between each adjacent temperature difference; Step S770: Run the cooking program according to the adjusted cooking mode and / or cooking parameters; Step S780: Determine whether the duration of operation according to the adjusted cooking mode and / or cooking parameters is greater than or equal to the preset duration; Step S790: If the duration of operation according to the adjusted cooking mode and / or cooking parameters is greater than or equal to the preset duration, then monitor whether the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature; if the duration of operation according to the adjusted cooking mode and / or cooking parameters is less than the preset duration, then return to step S770. In step S7100, if the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature, then cooking ends; if the temperature value detected by the temperature detection device of the multi-segment probe head is less than the target temperature, then return to step S750 to continue adjusting the cooking mode and / or cooking parameters based on the difference or average value between each adjacent temperature difference.

[0102] In this embodiment, the controller activates the heating device to heat the cooking cavity to a preset temperature (e.g., 200°C). A temperature sensor monitors the cavity temperature in real time; once the set value is reached, preheating is successful, and the cooking stage can begin. During cooking, the food with a multi-segment probe inserted is placed into the cooking cavity. Multiple temperature monitoring devices on the multi-segment probe simultaneously detect the temperature at different depths of the food. Then, the selected cooking mode (e.g., pure baking) is selected. After a set running time, the adjacent temperature differences detected by each pair of adjacent temperature monitoring devices are calculated. The cooking mode and / or cooking parameters (e.g., switching to microwave mode or adjusting power) are adjusted based on the average or difference of these adjacent temperature differences. After adjusting the cooking mode and / or cooking parameters based on the difference or average of the adjacent temperature differences and running for the preset time, the temperature value detected by the temperature monitoring device at the head of the multi-segment probe is monitored to ensure it is greater than or equal to the target temperature. If the temperature value detected by the temperature monitoring device at the head of the multi-segment probe is greater than or equal to the target temperature, the food is cooked, and cooking must be stopped. If the temperature detected by the temperature detection device at the multi-segment probe head is lower than the target temperature, it indicates that the food is not yet cooked and needs further cooking. At this point, the multi-segment probe can continue to detect the temperature at different depths of the food. Therefore, it can continue to acquire the temperatures detected by each temperature sensor within the multi-segment probe and calculate the adjacent temperature differences between any two adjacent temperature detection devices. This allows for further adjustments to the cooking mode and / or cooking parameters based on the differences or average values ​​between adjacent temperature differences. In this way, the cooking mode and / or cooking parameters are dynamically adjusted during the cooking process based on the differences or average values ​​between adjacent temperature differences until the temperature detected by the temperature detection device at the multi-segment probe head is greater than or equal to the target temperature.

[0103] In this embodiment, a multi-segment probe is used to monitor the temperature distribution at different depths of the food in real time, and the cooking mode and parameters are dynamically adjusted based on adjacent temperature differences, achieving precise temperature control and intelligent cooking process. Specifically, heat distribution is dynamically adjusted through adjacent temperature difference analysis. For example, when the temperature on the outer side of the food is detected to be higher than that on the inner side, the microwave mode is automatically switched and the microwave power is adjusted to directly compensate for the internal heat; when the temperature on the inner side is higher than that on the outer side, the set temperature is reduced to avoid overcooking. At the same time, by setting a preset time, frequent adjustments can be avoided, ensuring cooking stability. This method effectively solves the problem of local overcooking or undercooking caused by the temperature difference between the inside and outside in traditional cooking, significantly improving the uniformity of the food's texture. At the same time, precise termination is achieved by comparing the temperature monitoring of the multi-segment probe head with the target temperature, balancing cooking efficiency and quality.

[0104] In some embodiments, refer to Figure 8 , Figure 8 This is the third flowchart of the cooking control method provided in Embodiment 1 of this application, which is executed by the controller 100 of the cooking appliance (oven 1) provided in the embodiment of this application, including but not limited to steps S810 to S8190.

[0105] Step S810: Control the heating device to operate in order to heat the inside of the cooking cavity; Step S820: Determine whether the internal temperature of the cooking cavity detected by the temperature sensor is greater than or equal to the set temperature; Step S830: If the temperature inside the cooking cavity detected by the temperature sensor is greater than or equal to the set temperature, insert the multi-segment probe into the food and put the food into the cooking cavity; if the temperature inside the cooking cavity detected by the temperature sensor is less than the set temperature, return to step S810. Step S840: Cook according to the selected pure roast mode; Step S850: Determine whether the cooking time in the selected pure baking mode is greater than or equal to the set time. In step S860, if the cooking time in the selected pure baking mode is greater than or equal to the set time, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated; if the cooking time in the selected pure baking mode is less than the set time, the process returns to step S840. Step S870: Determine whether the average value between each adjacent temperature difference is greater than or equal to the first preset temperature; Step S880: If the average value between each adjacent temperature difference is greater than or equal to the first preset temperature, control the cooking cavity to maintain the set temperature unchanged, control the switch from pure baking mode to microwave mode, and control the adjustment of the working power of the microwave generator according to the temperature range of the average value between each adjacent temperature difference. The larger the average value between each adjacent temperature difference, the greater the working power of the microwave generator. Step S890: Continue operation according to the adjusted microwave mode and operating power; Step S8100: Determine whether the adjusted runtime is greater than or equal to the first preset runtime. If the adjusted runtime is less than the first preset runtime, return to step S890. Step S8110: If the adjusted runtime is greater than or equal to the first preset runtime, then monitor whether the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature. In step S8120, if the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature, then cooking ends; if the temperature value detected by the temperature detection device of the multi-segment probe head is less than the target temperature, then return to step S860. Step S8130: If the average value between each adjacent temperature difference is less than the first preset temperature, determine whether the average value between each adjacent temperature difference is less than 0. Step S8140: If the average value between each adjacent temperature difference is less than 0, control to maintain the pure baking mode and control to reduce the set temperature; Step S8150: Continue running at the reduced set temperature and in pure baking mode; Step S8160: Determine whether the adjusted runtime is greater than or equal to the second preset runtime; if the adjusted runtime is greater than or equal to the second preset runtime, proceed to step S8110; if the adjusted runtime is less than the second preset runtime, return to step S8150. Step S8170: If the average value between each adjacent temperature difference is greater than or equal to 0 but less than the first preset temperature, control to maintain the pure baking mode and cooking parameters unchanged; Step S8180: Continue running while maintaining the pure baking mode and cooking parameters unchanged; Step S8190: Determine whether the duration of operation while maintaining the pure baking mode and cooking parameters is greater than or equal to the third preset duration. If it is greater than or equal to the third preset duration, return to step S8110. If it is less than the third preset duration, return to step S8180.

[0106] In this embodiment, the controller first activates the heating device to heat the cooking cavity to a preset temperature (e.g., 200°C). Once the temperature sensor detects that the cavity has reached the set temperature, the food with the multi-segment probe inserted is placed into the cooking cavity, ready to enter the cooking stage. Then, it operates in pure baking mode. After running in pure baking mode for a set time, multiple temperature detection devices on the multi-segment probe simultaneously detect the temperature at different depths of the food. By calculating the average temperature difference between adjacent temperature detection devices, the uniformity of heat transfer within the food can be assessed. Specifically, if the average temperature difference is ≥ the first preset temperature (e.g., 10K), it indicates that the outer temperature of the food is higher than the inner temperature, requiring microwave compensation for internal heat. The controller maintains the cavity temperature constant and switches from pure baking mode to microwave mode, adjusting the microwave power according to the range of the average temperature difference (the larger the average temperature difference, the higher the microwave power). If the average temperature difference is <0, it indicates that the inner temperature of the food is higher than the outer temperature, requiring a reduction in external heat input. The controller lowers the set temperature (e.g., by 10K) and continues operating in pure baking mode. If the average temperature difference is between 0 and the first preset temperature, it indicates that the internal and external temperature distribution of the food is relatively uniform. No additional intervention is needed; continue cooking with the current cooking parameters and mode unchanged.

[0107] Regardless of the adjustment method, after the adjusted running time reaches the corresponding preset time (first preset time, second preset time, third preset time), the temperature of the food at different depths obtained by the multi-segment probe is re-acquired, and the cooking parameters and / or cooking mode of the cooking process are dynamically adjusted according to the average value of the adjacent temperature difference between adjacent temperature detection devices.

[0108] It should be noted that the first preset duration, the second preset duration, and the third preset duration can be the same or different, and the specific settings can be determined according to the actual situation.

[0109] In this embodiment, multiple temperature detection devices with axially equidistantly distributed multi-segment probes can accurately and in real time detect the temperature at different depths from the inside to the outside of the food. Compared to traditional single-point temperature measurement, this multi-segment monitoring can obtain complete temperature distribution data inside the food, thus more comprehensively reflecting the uniformity of the food's ripeness.

[0110] By calculating the temperature difference between adjacent temperature detection devices (adjacent temperature difference) and judging based on the average of these differences, the system can accurately characterize the uniformity of heat transfer inside the food. Based on this, cooking modes (such as switching from pure baking mode to microwave mode) and cooking parameters (such as microwave power, set temperature, etc.) can be dynamically adjusted to achieve a precise balance of heat inside and outside the food.

[0111] In traditional cooking, uneven temperatures between the inside and outside of ingredients often result in areas that are either undercooked or overcooked. This application's embodiments, by monitoring and dynamically adjusting the temperature difference in real time, can quickly reduce this difference. For example, when the outer temperature is detected to be significantly higher than the inner temperature, the system automatically switches to microwave mode and increases power to directly heat the inside of the food; when the inner temperature is higher than the outer temperature, the set temperature is lowered to reduce external heat input. This intelligent control significantly improves the consistency of the food's texture and flavor.

[0112] By setting a first, second, and third preset time, frequent adjustments to cooking modes and parameters can be avoided, ensuring the stability of the cooking process. For example, after adjusting the microwave mode or temperature, the system will run for a fixed period of time before reassessing the temperature difference, ensuring both effective control and preventing fluctuations in the cooking process caused by frequent switching.

[0113] After adjusting the cooking mode and / or cooking parameters and running the corresponding preset time, cooking automatically terminates when the multi-segment probe head temperature reaches the target temperature to avoid overcooking; if the target temperature is not reached, it returns to the calculation step of the adjacent temperature difference to continue adjustment. This dual judgment mechanism not only ensures the accuracy of the cooking endpoint determination (based on the core temperature), but also optimizes the uniformity of the cooking process through continuous regulation, ultimately achieving the best balance between the taste and nutrient preservation of the ingredients.

[0114] In some embodiments, refer to Figure 9 , Figure 9 This is a flowchart of steps for controlling and adjusting the operating power of a microwave generator based on the temperature range of the average value between adjacent temperature differences, including but not limited to steps S910 to S950, provided in one embodiment of this application.

[0115] Step S910: When the average value between each adjacent temperature difference is greater than or equal to the first preset temperature but less than the second preset temperature, control and adjust the working power of the microwave generator to the first power. Step S920: When the average value between each adjacent temperature difference is greater than or equal to the second preset temperature but less than the third preset temperature, control and adjust the working power of the microwave generator to the second power. Step S930: When the average value between each adjacent temperature difference is greater than or equal to the third preset temperature but less than the fourth preset temperature, control and adjust the working power of the microwave generator to the third power. Step S940: When the average value between each adjacent temperature difference is greater than or equal to the fourth preset temperature but less than the fifth preset temperature, control and adjust the working power of the microwave generator to the fourth power. Step S950: When the average value between each adjacent temperature difference is greater than or equal to the fifth preset temperature, control and adjust the working power of the microwave generator to the fifth power, wherein the first power is less than the second power, less than the third power, less than the fourth power, and less than the fifth power.

[0116] In this embodiment, the operating power of the microwave generator can be controlled and adjusted according to the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the higher the operating power of the microwave generator. Specifically, when the average value between adjacent temperature differences is greater than or equal to a first preset temperature but less than a second preset temperature, i.e. The operating power of the microwave generator is controlled and adjusted to the first power P1. When the average value between adjacent temperature differences is greater than or equal to the second preset temperature but less than the third preset temperature, i.e. The operating power of the microwave generator is controlled and adjusted to the second power P2. When the average value between adjacent temperature differences is greater than or equal to the third preset temperature but less than the fourth preset temperature, i.e. The operating power of the microwave generator is adjusted to the third power P3. When the average value between adjacent temperature differences is greater than or equal to the fourth preset temperature but less than the fifth preset temperature, i.e. The operating power of the microwave generator is adjusted to the fourth power, P4. When the average value between adjacent temperature differences is greater than or equal to the fifth preset temperature, i.e. The operating power of the microwave generator is controlled and adjusted to the fifth power, wherein the first power is less than the second power, less than the third power, less than the fourth power, and less than the fifth power, i.e., P1 < P2 < P3 < P4 < P5.

[0117] In this embodiment, a multi-segment probe is used to monitor the temperature gradient at different depths inside the food in real time, and the microwave power is dynamically adjusted (five adjustable levels, P1-P5) based on the average value of adjacent temperature differences, achieving precise control over the heat distribution inside the food. When a large temperature difference is detected (e.g., ≥ the fifth preset temperature), the power is automatically increased to the highest level (P5) to quickly compensate for the internal heat; when the temperature difference is small, a low power (e.g., P1) is used to maintain the temperature, effectively solving the problem of local overcooking or undercooking caused by internal and external temperature differences in traditional cooking, and significantly improving the uniformity of the food's texture.

[0118] By mapping preset temperature thresholds (from the first to the fifth preset temperature) to power levels, the system automatically matches the optimal heating strategy. For example, when the average temperature difference is within the second to third preset temperature range, it automatically switches to power levels P2-P3, avoiding overheating while ensuring sufficient heat penetration. This adaptive adjustment based on real-time temperature difference data reduces the need for manual intervention. A tiered power control strategy ensures cooking results while avoiding energy waste from continuous high-power operation. For instance, when the temperature difference is small, low power (P1-P2) is maintained, and power is increased only when the temperature difference significantly increases (P3-P5), shortening cooking time and reducing energy consumption.

[0119] For example, taking roasted chicken as an example, after the oven 1 starts working, the heating device 40 starts heating, and the internal temperature of the oven cooking cavity 20 rises. At this time, the temperature sensor 50 monitors the internal temperature of the cavity and controls the heating device 40 and other components to work, raising the cavity temperature.

[0120] Once the internal temperature of the oven cavity reaches the set temperature (200℃), the display device 80 indicates that preheating is complete, and cooking can begin. Open the oven door, place the food in the oven, and insert one end of the multi-segment probe 60 into the food and the other end into the probe holder on the side of the oven cavity. The multi-segment probe 60 can monitor the temperature at different depths of the food. Assuming the multi-segment probe 60 is a 3-segment probe, it contains 3 temperature detection devices (thermostats or thermocouples) placed equidistantly on the probe from head to tail. Cooking then begins and proceeds as follows: (1) Input the probe preset temperature (i.e., target temperature) into the control terminal, close the oven door, and the oven starts cooking; (2) The oven is operated in the mode of upper external heating element + lower heating element + hot air load (i.e. pure baking mode) and the cavity temperature is kept constant at 200°C. Cook for 20 minutes first.

[0121] (3) After cooking for 20 minutes, obtain the temperatures collected by the three temperature detection devices on the segmented probe, and calculate the adjacent temperature differences ΔT201=T202-T201, ΔT202=T203-T202 of adjacent temperature detection devices. Then calculate the average value of each adjacent temperature difference ΔT20avr=(ΔT201+ΔT202) / 2. Wherein: If 2K≤ΔT20avr<4K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 100W, running time 2 minutes; If 4K≤ΔT20avr<6K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 200W, running time 2 minutes; If 6K≤ΔT20avr<8K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 300W, running time 2 minutes; If 8K≤ΔT20avr<10K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 400W, running time 2 minutes; If ΔT20avr≥10K, then maintain the set temperature (200℃) unchanged, switch from pure baking mode to microwave mode, and adjust the microwave power to 500W, running time 2 minutes; If 0K≤ΔT20avr<2K, then maintain the pure baking mode and the set temperature (200℃) unchanged, and continue running for 2 minutes; If ΔT20avr < 0K, the set temperature (200℃) will be reduced by 10K to 190℃, and the pure roasting mode will be maintained for 2 minutes.

[0122] (4) After each adjustment and 2-minute run, determine whether the temperature T1 of the multi-segment probe head has reached the target temperature (e.g., 90℃). If the target temperature (90℃) is reached, stop cooking; if the target temperature (90℃) is not reached, continue to acquire the temperature values ​​collected by the three temperature detection devices on the multi-segment probe, and calculate the adjacent temperature difference corresponding to the adjacent temperature detection devices. For example, if the calculated adjacent temperature differences are: ΔT371=T372-T371, ΔT372=T373-T372, then calculate the average value of the adjacent temperature differences ΔT37avr=(ΔT371+ΔT372) / 2, where: If 1K≤ΔT37avr<2K, then maintain the set temperature (200℃) unchanged, switch from pure baking mode to microwave mode, and adjust the microwave power to 50W, with a running time of 5 minutes; If 2K≤ΔT37avr<3K, then maintain the set temperature (200℃) unchanged, switch from pure baking mode to microwave mode, and adjust the microwave power to 100W, running time 5 minutes; If 3K≤ΔT37avr<4K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 150W, running time 5 minutes; If 4K≤ΔT37avr<5K, then maintain the set temperature (200℃) unchanged, switch from pure roast mode to microwave mode, and adjust the microwave power to 200W, running time 5 minutes; If ΔT37avr≥5K, then maintain the set temperature (200℃) unchanged, switch from pure baking mode to microwave mode, and adjust the microwave power to 250W, running time 5 minutes; If 0K≤ΔT37avr<1K, then maintain the pure baking mode and the set temperature (200℃) unchanged, and continue to run for 5 minutes; If ΔT37avr < 0K, the set temperature (200℃) will be further reduced by 10K to 180℃, and the pure roasting mode will be maintained for 5 minutes.

[0123] (5) Adjust the cooking mode and / or cooking parameters dynamically in this way until the multi-segment probe head temperature T1 reaches the target temperature (90°C), then stop cooking.

[0124] Following the steps described above, precise temperature control is achieved through a smart temperature difference-power mapping mechanism. When the outer temperature is detected to be significantly higher than the inner temperature (e.g., ΔT20avr ≥ 10K), the system automatically switches to a 500W microwave mode to quickly compensate for internal heat. When the inner temperature is higher than the outer temperature (ΔT20avr < 0K), the set temperature is lowered to 190℃ to prevent overcooking. Simultaneously, 2-minute / 5-minute cycle control ensures stable adjustment. This dynamic control not only solves the problem of localized overcooking or undercooking caused by temperature differences between the inside and outside in traditional cooking, but also optimizes energy efficiency through a graded power strategy (e.g., 50W-500W). Ultimately, the head temperature of the roasted chicken precisely reaches the target value of 90℃, significantly improving cooking uniformity and consistent taste.

[0125] In some embodiments, refer to Figure 10 , Figure 10 This is the fourth flowchart of the cooking control method provided in Embodiment 1 of this application, which is executed by the controller 100 of the cooking appliance (oven 1) provided in the embodiment of this application, including but not limited to steps S1010 to S10190.

[0126] Step S1010: Control the heating device to operate in order to heat the inside of the cooking cavity; Step S1020: Determine whether the internal temperature of the cooking cavity detected by the temperature sensor is greater than or equal to the set temperature; Step S1030: If the temperature inside the cooking cavity detected by the temperature sensor is greater than or equal to the set temperature, insert the multi-segment probe into the food and put the food into the cooking cavity; if the temperature inside the cooking cavity detected by the temperature sensor is less than the set temperature, return to step S1010. Step S1040: Cook according to the selected pure steam mode; Step S1050: Determine whether the cooking time in the selected pure steam mode is greater than or equal to the set time. In step S1060, if the cooking time in the selected pure steam mode is greater than or equal to the set time, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated; if the cooking time in the selected pure steam mode is less than the set time, the process returns to step S1040. Step S1070: Determine whether the average value between each adjacent temperature difference is greater than or equal to the first set temperature; Step S1080: If the average value between each adjacent temperature difference is greater than or equal to the first set temperature, control the cooking cavity to maintain the set temperature unchanged, control the switch from pure steam mode to micro steam mode, and control the adjustment of the working power of the microwave generator and the working duty cycle of the steam generator according to the temperature range of the average value between each adjacent temperature difference. The larger the average value between each adjacent temperature difference, the larger the working power of the microwave generator and the larger the working duty cycle of the steam generator. Step S1090: Continue running according to the adjusted cooking mode and cooking parameters; Step S10100: Determine whether the adjusted runtime is greater than or equal to the first preset runtime. If the adjusted runtime is less than the first preset runtime, return to step S1090. Step S10110: If the adjusted runtime is greater than or equal to the first preset runtime, then monitor whether the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature. In step S10120, if the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature, then cooking ends; if the temperature value detected by the temperature detection device of the multi-segment probe head is less than the target temperature, then return to step S1060. Step S10130: If the average value between each adjacent temperature difference is less than the first preset temperature, determine whether the average value between each adjacent temperature difference is less than 0. Step S10140: If the average value between each adjacent temperature difference is less than 0, control to maintain pure steam mode and set temperature, and control to increase the working duty cycle of steam generator. Step S10150: Continue running according to the adjusted cooking parameters; Step S10160: Determine whether the adjusted runtime is greater than or equal to the second preset runtime; if the adjusted runtime is greater than or equal to the second preset runtime, then execute step S10110; if the adjusted runtime is less than the second preset runtime, then return to step S10150. Step S10170: If the average value between each adjacent temperature difference is greater than or equal to 0 but less than the first preset temperature, control to maintain the pure steam mode and cooking parameters unchanged. Step S10180: Continue running while maintaining the pure steam mode and cooking parameters unchanged; Step S10190: Determine whether the duration of operation while maintaining pure steam mode and cooking parameters is greater than or equal to the third preset duration. If it is greater than or equal to the third preset duration, return to step S10110. If it is less than the third preset duration, return to step S10180.

[0127] In this embodiment, when the current cooking mode is pure steam mode, the internal temperature gradient of the food is monitored in real time by a multi-segment probe, and the cooking mode, microwave power, and steam duty cycle are dynamically adjusted based on the average adjacent temperature difference to ensure optimal cooking results. Specifically, when the outer temperature is detected to be significantly higher than the inner temperature (e.g., the average adjacent temperature difference ≥ the first set temperature), the system automatically switches to microwave-steam mode and simultaneously increases the microwave power (e.g., 100W-500W) and steam duty cycle (e.g., 30%-45%) to quickly compensate for internal heat; when the inner temperature is higher than the outer temperature (average adjacent temperature difference < 0), the pure steam mode is maintained but the steam duty cycle is increased (e.g., from 30% to 50%) to avoid overheating; when the temperature difference is within a reasonable range (0 ≤ average adjacent temperature difference < the first set temperature), the cooking mode and cooking parameters remain unchanged. This dynamic control not only solves the problem of localized overcooking or undercooking caused by the temperature difference between the inside and outside in traditional steaming, but also significantly improves the uniformity of the food's texture and cooking efficiency through the synergistic optimization of graded power and steam duty cycle. Ultimately, it ensures that the temperature of the multi-segment probe head accurately reaches the target temperature (such as 70℃ for steaming fish), thus ensuring the best cooking results.

[0128] In some embodiments, refer to Figure 11 , Figure 11 This is a flowchart of steps for controlling and adjusting the operating power of a microwave generator and the operating duty cycle of a steam generator based on the temperature range of the average value between adjacent temperature differences, including but not limited to steps S1110 to S1140, provided in an embodiment of this application.

[0129] Step S1110: When the average value between each adjacent temperature difference is greater than or equal to the first set temperature but less than the second set temperature, control the microwave generator to adjust its operating power to the first power and control the steam generator to adjust its operating duty cycle to the first duty cycle. Step S1120: When the average value between each adjacent temperature difference is greater than or equal to the second set temperature but less than the third set temperature, control the microwave generator to adjust its operating power to the second power, and control the steam generator to adjust its operating duty cycle to the second duty cycle. Step S1130: When the average value between each adjacent temperature difference is greater than or equal to the third set temperature but less than the fourth set temperature, control the microwave generator to adjust its operating power to the third power and control the steam generator to adjust its duty cycle to the third duty cycle. Step S1140: When the average value between each adjacent temperature difference is greater than or equal to the fourth set temperature, control the working power of the microwave generator to the fourth power and control the working duty cycle of the steam generator to the fourth duty cycle, wherein the first power is less than the second power, less than the third power, and less than the fourth power, and the first duty cycle is less than the second duty cycle, less than the third duty cycle, and less than the fourth duty cycle.

[0130] In this embodiment, a graded control mechanism based on the average value of adjacent temperature differences (between the first and fourth set temperatures) is employed to automatically match the combination strategy of microwave power (P1-P4) and steam duty cycle. When a large temperature difference is detected (e.g., ≥ the fourth set temperature), the system simultaneously increases to the highest power (P4) and maximum duty cycle to quickly compensate for internal heat and maintain humidity balance. When the temperature difference is small, low power (P1) and low duty cycle are used to maintain gentle heating, effectively solving the problem of localized overcooking or undercooking caused by internal and external temperature differences in traditional cooking.

[0131] By employing a tiered power and duty cycle adjustment strategy, energy waste caused by continuous high-power operation is avoided. For example, a medium temperature difference range (second to third set temperature) is matched with P2-P3 power and a medium-to-high duty cycle, reducing energy consumption while ensuring heating effect. Dynamically adjusting cooking parameters based on real-time temperature difference data reduces the need for manual intervention. Through the mapping relationship between preset temperature thresholds and power / duty cycle, the optimal heating strategy can be automatically matched, improving the stability and reliability of the cooking process. Furthermore, by precisely controlling the synergistic effect of microwaves and steam, nutrient loss due to overheating is avoided, while ensuring balanced internal and external temperatures of the food, significantly improving the taste and quality of the final product.

[0132] For example, taking steaming fish as an example, after the oven 1 starts working, the heating device 40 starts heating, and the internal temperature of the oven cooking cavity 20 rises. At this time, the temperature sensor 50 monitors the internal temperature of the cavity and controls the heating device 40 and other components to work, raising the cavity temperature.

[0133] Once the internal temperature of the oven cavity reaches the set temperature (100℃), the display device 80 indicates that preheating is complete, and cooking can begin. Open the oven door, place the food in the oven, and insert one end of the multi-segment probe 60 into the food and the other end into the probe holder on the side of the oven cavity. The multi-segment probe 60 can monitor the temperature at different depths of the food. Assuming the multi-segment probe 60 is a 3-segment probe, it contains 3 temperature detection devices (thermostats or thermocouples) placed equidistantly on the probe from head to tail. Cooking then begins and proceeds as follows: (1) Input the probe preset temperature (i.e., target temperature) into the control terminal, close the oven door, and the oven starts cooking; (2) The oven is operated in pure steam mode (the steam generator operates at 45% duty cycle and 1 minute cycle) and the cavity temperature is kept constant at 100°C. Cook for 5 minutes first.

[0134] (3) After cooking for 5 minutes, obtain the temperatures collected by the three temperature detection devices on the segmented probe, and calculate the adjacent temperature differences ΔT51=T52-T51, ΔT52=T53-T52 between adjacent temperature detection devices. Then calculate the average value of each adjacent temperature difference ΔT5avr=(ΔT51+ΔT52) / 2. Wherein: If 1K≤ΔT5avr<2K, then maintain the set temperature (100℃) unchanged, switch from pure steam mode to micro steam mode, adjust the microwave power to 50W, adjust the duty cycle of the steam generator to 25%, keep the cycle length unchanged at 1 minute, and run continuously for 2 cycles (micro steam for 2 minutes). If 2K≤ΔT5avr<3K, then maintain the set temperature (100℃) unchanged, switch from pure steam mode to micro steam mode, adjust the microwave power to 100W, adjust the duty cycle of the steam generator to 30%, keep the cycle length unchanged at 1 minute, and run continuously for 2 cycles (micro steam for 2 minutes). If 3K≤ΔT5avr<4K, then maintain the set temperature (100℃) unchanged, switch from pure steam mode to micro steam mode, adjust the microwave power to 150W, adjust the duty cycle of the steam generator to 35%, keep the cycle length unchanged at 1 minute, and run continuously for 2 cycles (micro steam for 2 minutes). If ΔT5avr≥4K, then maintain the set temperature (100℃) unchanged, switch from pure steam mode to micro steam mode, adjust the microwave power to 200W, adjust the duty cycle of the steam generator to 40%, keep the cycle length unchanged at 1 minute, and run continuously for 2 cycles (micro steam for 2 minutes). If 0K≤ΔT5avr<1K, then continue to run in pure steam mode, maintain the set temperature (100℃) unchanged, keep the duty cycle of the steam generator at 40%, and keep the cycle length at 1 minute unchanged, and run continuously for 2 cycles (2 minutes of steaming). If ΔT5avr < 0K, continue running in pure steam mode, maintain the set temperature (100℃) unchanged, adjust the duty cycle of the steam generator to 50%, cycle length 1min, and run continuously for 2 cycles (micro-steaming for 2 minutes). (4) After each adjustment and 2 minutes of operation, determine whether the temperature T1 of the multi-segment probe head has reached the target temperature (e.g., 70°C). If the target temperature (70°C) is reached, stop cooking. If the target temperature (70°C) is not reached, continue to acquire the temperature values ​​collected by the three temperature detection devices on the multi-segment probe, and calculate the adjacent temperature difference corresponding to the adjacent temperature detection devices. Adjust the cooking mode and / or cooking parameters according to the average value of the adjacent temperature difference. Adjust the cooking mode and / or cooking parameters dynamically in this way until the temperature T1 of the multi-segment probe head reaches the target temperature (90°C), then stop cooking.

[0135] Following the steps outlined above, a multi-segment probe monitors the internal and external temperature gradients of the food in real time. Based on the average value of adjacent temperature differences, a dynamic matching strategy is employed to adjust the microwave power (50-200W) and steam duty cycle (25%-50%), achieving precise control of the heating process. Specifically, when a significant temperature difference is detected (ΔT5avr≥4K), the highest power combination (200W+40%) is automatically activated to quickly compensate for internal heat; when the temperature difference is moderate, medium power (e.g., 150W+35%) is used to balance heating efficiency; and when the temperature difference is small, low power (e.g., 50W+25%) is maintained for gentle penetration. This intelligent collaborative mechanism of temperature difference, power, and duty cycle not only solves the problem of localized overcooking or undercooking caused by internal and external temperature differences in traditional steaming, but also optimizes the energy efficiency ratio through graded control, ultimately ensuring that the probe head temperature accurately reaches the target value of 70℃, maintaining the tender texture of the fish while ensuring complete nutrient retention.

[0136] In some embodiments, the multi-segment probe 60 has three temperature detection devices equidistantly distributed along the axial direction. The multi-segment probe 60 is used to insert into the food to detect the internal temperature, middle temperature, and external temperature of the food, respectively. (Refer to...) Figure 12 , Figure 12 This is the fifth flowchart of a cooking control method provided in an embodiment of this application, which is executed by the controller 100 of the cooking appliance (oven 1) provided in the embodiment of this application, including but not limited to steps S1210 to S12170.

[0137] Step S1210: Control the heating device to operate so as to heat the temperature inside the cooking cavity to the set temperature; Step S1220: When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, insert the multi-segment probe into the food and put the food into the cooking cavity. Step S1230: After cooking for the set time according to the selected cooking mode, obtain the temperature detected by each temperature sensor in the multi-segment probe to obtain the internal temperature, middle temperature and external temperature of the food. Step S1240: When the difference between the first temperature difference between the external temperature and the internal temperature of the food and the second temperature difference between the internal temperature and the internal temperature is greater than the first set temperature, the set temperature is controlled to be reduced. Step S1250: When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is greater than the second set temperature, the microwave generator is activated to increase the internal temperature of the food. Step S1260: When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is less than 0, the set temperature is increased. Step S1270: When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is equal to 0, maintain the current cooking mode and / or cooking parameters unchanged.

[0138] In this embodiment, three temperature detection devices (internal, middle, and external) with segmented probes equidistantly distributed along the axis can comprehensively monitor the temperature gradient of the food. When the difference between the external and middle temperature difference (first temperature difference) and the middle and internal temperature difference (second temperature difference) exceeds a first set temperature, the set temperature is automatically lowered, effectively preventing the food from being overcooked on the outside while uncooked on the inside. When the difference between adjacent temperature differences exceeds a second set temperature, a microwave generator is activated to directly increase the internal temperature of the food. This compensation mechanism can quickly balance the temperature difference between the inside and outside of the food, significantly shortening cooking time while ensuring uniform heating. Depending on the different situations of adjacent temperature differences (greater than the first set temperature, greater than the second set temperature, less than 0, equal to 0), different measures are taken, such as lowering the temperature, activating the microwave, raising the temperature, or maintaining the status quo. This adaptive adjustment capability makes the cooking process more intelligent and precise. By monitoring the temperature at different depths of the food in real time and dynamically adjusting the cooking mode and / or cooking parameters, the food can achieve the best cooking effect, avoiding local overcooking or undercooking, and improving the taste and quality of the final product. At the same time, intelligent control also improves cooking efficiency and reduces energy waste.

[0139] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A cooking control method for a cooking appliance, characterized in that, The cooking appliance includes: The housing has a cooking cavity for holding cooking ingredients; A heating device is used to heat the interior of the cooking cavity; A temperature sensor is used to detect the temperature inside the cooking cavity; A multi-segment probe, wherein multiple temperature detection devices are equidistantly distributed along the axial direction, and the multi-segment probe is used to insert into food to detect the temperature at different depths of the food. The control method includes: The heating device is controlled to operate in order to heat the internal temperature of the cooking cavity to a set temperature; When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, the multi-segment probe is inserted into the food and the food is placed into the cooking cavity; After cooking for the set time according to the selected cooking mode, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated. Adjust the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences to achieve the best cooking results for the ingredients.

2. The method according to claim 1, characterized in that, The cooking appliance also includes: A microwave generator is used to deliver microwaves into the cooking cavity; Correspondingly, when the currently selected cooking mode is pure roasting mode, the adjustment of the cooking mode and / or cooking parameters based on the average value between adjacent temperature differences to achieve the best cooking effect for the ingredients includes: When the average value between adjacent temperature differences is greater than or equal to the first preset temperature, the cooking cavity is controlled to maintain the set temperature unchanged, the pure baking mode is switched to microwave mode, and the working power of the microwave generator is adjusted according to the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the greater the working power of the microwave generator. When the average value between adjacent temperature differences is less than 0, the system maintains the pure baking mode and lowers the set temperature. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first preset temperature, the control maintains the pure baking mode and the set temperature unchanged.

3. The method according to claim 2, characterized in that, Based on the temperature range of the average value between adjacent temperature differences, the operating power of the microwave generator is controlled and adjusted, including: When the average value between adjacent temperature differences is greater than or equal to the first preset temperature but less than the second preset temperature, the operating power of the microwave generator is controlled and adjusted to the first power. When the average value between adjacent temperature differences is greater than or equal to the second preset temperature but less than the third preset temperature, the operating power of the microwave generator is controlled and adjusted to the second power. When the average value between adjacent temperature differences is greater than or equal to the third preset temperature but less than the fourth preset temperature, the operating power of the microwave generator is controlled and adjusted to the third power. When the average value between adjacent temperature differences is greater than or equal to the fourth preset temperature but less than the fifth preset temperature, the operating power of the microwave generator is controlled and adjusted to the fourth power. When the average value between adjacent temperature differences is greater than or equal to the fifth preset temperature, the operating power of the microwave generator is controlled and adjusted to the fifth power, wherein the first power is less than the second power, less than the third power, less than the fourth power, and less than the fifth power.

4. The method according to claim 1, characterized in that, The cooking appliance also includes: A microwave generator is used to deliver microwaves into the cooking cavity; A steam generator is used to supply steam into the cooking cavity; Correspondingly, when the currently selected cooking mode is pure steaming, the adjustment of the cooking mode and / or cooking parameters based on the average value between adjacent temperature differences to achieve the best cooking effect for the ingredients includes: When the average value between adjacent temperature differences is greater than or equal to the first set temperature, the control maintains the set temperature unchanged, switches the pure steam mode to micro steam mode, and adjusts the working power of the microwave generator and the working duty cycle of the steam generator according to the temperature range of the average value between adjacent temperature differences. The larger the average value between adjacent temperature differences, the greater the working power of the microwave generator and the greater the working duty cycle of the steam generator. When the average value between adjacent temperature differences is less than 0, the pure steam mode and the set temperature are maintained, and the duty cycle of the steam generator is increased. When the average value between adjacent temperature differences is greater than or equal to 0 but less than the first set temperature, the control maintains the pure steam mode and the cooking parameters remain unchanged. The cooking parameters include the set temperature and the duty cycle of the steam generator.

5. The method according to claim 4, characterized in that, Based on the temperature range of the average value between adjacent temperature differences, the operating power of the microwave generator and the duty cycle of the steam generator are controlled and adjusted, including: When the average value between adjacent temperature differences is greater than or equal to the first set temperature but less than the second set temperature, the operating power of the microwave generator is controlled and adjusted to the first power, and the operating duty cycle of the steam generator is controlled and adjusted to the first duty cycle. When the average value between adjacent temperature differences is greater than or equal to the second set temperature but less than the third set temperature, the operating power of the microwave generator is controlled and adjusted to the second power, and the operating duty cycle of the steam generator is controlled and adjusted to the second duty cycle. When the average value between adjacent temperature differences is greater than or equal to the third set temperature but less than the fourth set temperature, the operating power of the microwave generator is controlled and adjusted to the third power, and the operating duty cycle of the steam generator is controlled and adjusted to the third duty cycle. When the average value between adjacent temperature differences is greater than or equal to the fourth set temperature, the operating power of the microwave generator is controlled and adjusted to the fourth power, and the operating duty cycle of the steam generator is controlled and adjusted to the fourth duty cycle, wherein the first power is less than the second power, less than the third power, and less than the fourth power, and the first duty cycle is less than the second duty cycle, less than the third duty cycle, and less than the fourth duty cycle.

6. The method according to claim 1, characterized in that, The cooking appliance also includes: A microwave generator is used to deliver microwaves into the cooking cavity; The multi-segment probe has three temperature detection devices evenly distributed along the axial direction. The multi-segment probe is used to insert into the food to detect the internal temperature, middle temperature and external temperature of the food respectively. Correspondingly, the adjustment of cooking modes and / or cooking parameters based on the difference between adjacent temperature differences to achieve optimal cooking results for the ingredients includes: When the difference between the first temperature difference between the external temperature and the internal temperature of the food and the second temperature difference between the internal temperature and the internal temperature is greater than the first set temperature, the set temperature is controlled to be reduced. When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is greater than the second set temperature, the set temperature is maintained unchanged, and the microwave generator is activated to increase the internal temperature of the food. When the difference between the first temperature difference between the external temperature and the middle temperature of the food and the second temperature difference between the middle temperature and the internal temperature is less than 0, the set temperature is controlled to be increased. When the difference between the first temperature difference between the external temperature and the internal temperature of the food and the second temperature difference between the internal temperature and the internal temperature is equal to 0, the current cooking mode and / or cooking parameters remain unchanged.

7. The method according to any one of claims 1, 2, 4, and 6, characterized in that, The method further includes: After adjusting the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences and running for a preset time, monitor whether the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature. If the temperature value detected by the temperature detection device of the multi-segment probe head is greater than or equal to the target temperature, then cooking ends; If the temperature value detected by the temperature detection device of the multi-segment probe head is less than the target temperature, the process returns to the step of obtaining the temperature detected by each temperature sensor in the multi-segment probe and calculating the adjacent temperature difference between each pair of adjacent temperature detection devices, so as to continue to adjust the cooking mode and / or cooking parameters based on the difference or average value between each adjacent temperature difference.

8. A cooking utensil, characterized in that, include: The housing has a cooking cavity for holding cooking ingredients; A heating device is used to heat the interior of the cooking cavity; A temperature sensor is used to detect the temperature inside the cooking cavity; A multi-segment probe, wherein multiple temperature detection devices are equidistantly distributed along the axial direction, and the multi-segment probe is used to insert into food to detect the temperature at different depths of the food. The controller, connected to the heating device, the temperature sensor, and the multi-segment probe, is used to perform the following steps: The heating device is controlled to operate in order to heat the internal temperature of the cooking cavity to a set temperature; When the temperature sensor detects that the temperature inside the cooking cavity has reached the set temperature, the multi-segment probe is inserted into the food and the food is placed into the cooking cavity; After cooking for the set time according to the selected cooking mode, the temperature detected by each temperature sensor in the multi-segment probe is obtained, and the adjacent temperature difference between the temperatures detected by each of the two adjacent temperature detection devices is calculated. Adjust the cooking mode and / or cooking parameters based on the difference or average value between adjacent temperature differences to achieve the best cooking results for the ingredients.

9. The cooking utensil according to claim 8, characterized in that, The cooking appliance also includes: A microwave generator is used to deliver microwaves into the cooking cavity; A steam generator is used to supply steam into the cooking cavity; The microwave generator and the steam generator are respectively electrically connected to the controller.

10. The cooking utensil according to claim 8 or 9, characterized in that, The cooking appliance also includes: The display device is used to display the currently running cooking mode and the corresponding cooking parameters; A communication module is provided, which is connected to both the controller and the multi-segment probe. The multi-segment probe is connected to external devices through the communication module.

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