Cooking appliance, method of operating a cooking appliance, device, computer equipment and storage medium

Abstract

The application relates to a cooking utensil and a running method, device, computer equipment, storage medium and computer program product thereof. In the running process, the set temperature of the cooking utensil can be acquired, then a corresponding running strategy is matched for the cooking utensil according to the temperature range where the set temperature is located, and finally the top heating pipe, the bottom heating pipe and the steam generator of the cooking utensil are controlled to heat and run in the matched running strategy. Through the scheme, the set temperature of the cooking utensil required can be combined to control the cooking utensil to heat by using different running strategies, the control logic of the cooking utensil is various, and the overall performance of the cooking utensil can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a cooking appliance and its operating method, apparatus, computer equipment, storage medium and computer program product. Background Technology

[0002] With social development and technological advancements, people's lives are becoming increasingly diversified, and a wide variety of cooking appliances are emerging on the market, bringing great convenience and a better experience to people's lives. Examples include steam ovens, regular ovens, and steam-baking ovens with steaming and baking functions. However, various feedback has also arisen during the use of these cooking appliances. For instance, when using the steaming function of a steam oven, a lot of water often accumulates at the bottom of the cavity, requiring users to spend a significant amount of time and effort cleaning it after cooking, causing considerable inconvenience and dissatisfaction. Furthermore, the control logic of this type of cooking appliance is relatively simple, resulting in poor overall performance. Summary of the Invention

[0003] Therefore, it is necessary to provide a cooking appliance and its operating method, apparatus, computer equipment, storage medium and computer program product to improve the overall performance of the cooking appliance.

[0004] A method for operating a cooking appliance includes: acquiring a set temperature of the cooking appliance; determining an operating strategy for the cooking appliance based on the temperature range of the set temperature; and controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the operating strategy.

[0005] The aforementioned operating method for cooking appliances allows for the acquisition of the set temperature during operation. Based on the temperature range of the set temperature, a corresponding operating strategy is matched to the appliance. Ultimately, the top heating element, bottom heating element, and steam generator are controlled according to the matched operating strategy. This approach allows for the control of the cooking appliance using different operating strategies based on the desired set temperature, resulting in diverse control logic and effectively improving the overall performance of the cooking appliance.

[0006] In one embodiment, determining the operating strategy of the cooking appliance based on the temperature range of the set temperature includes: if the set temperature is within a first temperature range, determining the cooking appliance to operate under a first operating strategy; if the set temperature is within a second temperature range, determining the cooking appliance to operate under a second operating strategy; wherein the upper limit of the second temperature range is less than or equal to the lower limit of the first temperature range; if the set temperature is within a third temperature range, determining the cooking appliance to operate under a third operating strategy; wherein the upper limit of the third temperature range is less than or equal to the lower limit of the second temperature range.

[0007] In one embodiment, controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy includes: if the operating strategy is a first operating strategy, obtaining the set operating time of the cooking appliance; and controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the set operating time.

[0008] In one embodiment, the first operating strategy includes a first heating mode and a second heating mode. The step of controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the set operating time includes: if the set operating time is less than or equal to a preset time threshold, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode; if the set operating time is greater than the preset time threshold, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode until the cumulative heating time reaches the preset time threshold, and then controlling the bottom heating element to operate in the second heating mode.

[0009] In one embodiment, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in a first heating mode includes: controlling the top heating element and bottom heating element of the cooking appliance to operate with a first duty cycle and acquiring the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, controlling the top heating element to stop operating and controlling the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to a second preset temperature threshold, controlling the bottom heating element to operate with a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to reach the set temperature, controlling the steam generator to switch to a duty cycle dynamic adjustment mode for single-element alternating heating operation.

[0010] In one embodiment, controlling the bottom heating element to operate in a second heating mode includes: controlling the bottom heating element to switch to heating operation with a third duty cycle; the third duty cycle is less than the second duty cycle.

[0011] In one embodiment, controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy further includes: if the operating strategy is a second operating strategy, controlling the top heating element and bottom heating element of the cooking appliance to operate at a first duty cycle and acquiring the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, controlling the top heating element to stop operating and controlling the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, making the difference between the set temperature and the internal temperature less than or equal to the second preset temperature threshold, controlling the bottom heating element to operate at a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to reach the set temperature, controlling the steam generator to switch to a single-tube alternating heating operation in a duty cycle dynamic adjustment mode, and controlling the bottom heating element to operate at a third duty cycle; the third duty cycle is less than the second duty cycle.

[0012] In one embodiment, the first duty cycle is the full-power operation duty cycle, the second duty cycle is (14-16):(46-44), the third duty cycle is (7.5-8.5):(52.5-51.5); and / or, the first preset temperature threshold is 40℃-50℃, and the second preset temperature threshold is 9℃-11℃.

[0013] In one embodiment, when the top heating element and bottom heating element of the cooking appliance are turned on and running at a first duty cycle, the method further includes: turning on the back fan of the cooking appliance.

[0014] In one embodiment, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the operating strategy further includes: if the operating strategy is a third operating strategy, controlling the steam generator of the cooking appliance to operate in a single-tube heating mode and acquiring the internal temperature of the cooking appliance in real time; if the internal temperature rises, such that the difference between the set temperature and the internal temperature is less than or equal to a third preset temperature threshold, controlling the steam generator to switch to a single-tube heating mode with dynamic duty cycle adjustment.

[0015] In one embodiment, the third preset temperature threshold is 14°C-16°C.

[0016] In one embodiment, the first temperature range is greater than or equal to 90°C and less than or equal to 100°C; the second temperature range is greater than or equal to 70°C and less than 90°C; and the third temperature range is greater than or equal to 40°C and less than 70°C.

[0017] An operating device for a cooking appliance includes: a set temperature acquisition module for acquiring a set temperature of the cooking appliance; an operating strategy matching module for determining an operating strategy of the cooking appliance based on the temperature range of the set temperature; and a heating control module for controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy.

[0018] A cooking appliance includes a housing, a top heating element, a bottom heating element, a steam generator, and a controller. The top heating element is disposed on a first inner surface of the housing, and the bottom heating element is disposed on a second inner surface of the housing opposite to the first inner surface. The top heating element, the bottom heating element, and the steam generator are respectively connected to the controller, which is used to execute the steps of the above-described operating method.

[0019] A computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the above-described operating method.

[0020] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described operating method.

[0021] A computer program product includes a computer program that, when executed by a processor, implements the steps of the above-described operating method. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the operation method of a cooking appliance in one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a cooking utensil in one embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a cooking appliance in another embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of a cooking appliance in another embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the operation method in another embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the operation method in another embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the operation method in another embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the first operation strategy flow in one embodiment of this application;

[0031] Figure 9 This is a schematic diagram of the second operation strategy flow in one embodiment of this application;

[0032] Figure 10 This is a schematic diagram of the operation method in another embodiment of this application;

[0033] Figure 11 This is a schematic diagram of the operating device of a cooking appliance in one embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 201-top heating element, 301-bottom heating element, 401-steam generator. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0036] This application provides a method for operating a cooking appliance, specifically for cooking appliances that include heating elements and steam generators. For example, in a more detailed embodiment, the cooking appliance may be a steam oven or a steam oven.

[0037] Taking a steam oven or steam oven as an example, the cooking appliance includes a top heating element, a bottom heating element, a steam generator, and a controller. The top heating element and the bottom heating element can be of the same type or different types, and can be resistance heating elements or radiant heating elements, etc., without specific limitations. The top heating element, the bottom heating element, and the steam generator are respectively connected to the controller, and the controller executes the operating method of the cooking appliance according to the embodiments of this application.

[0038] Please see Figure 1 A method for operating a cooking appliance, comprising steps 102, 104 and 106.

[0039] Step 102: Obtain the set temperature of the cooking appliance.

[0040] Specifically, the set temperature is the heating temperature that the user sets, the temperature at which the cooking appliance is expected to heat the food to be heated. The cooking appliance is a cooking device that uses steam to heat the food placed inside its cooking cavity.

[0041] It should be noted that the method of obtaining the set temperature is not unique. In one embodiment, a human-machine interface device can be provided on the outer surface of the cooking appliance. Specifically, it can be a touch screen or a mechanical button interface, whichever is appropriate for the actual situation. In this case, the set temperature can be input by the user through the human-machine interface device while using the cooking appliance.

[0042] In another embodiment, the controller of the cooking appliance can be connected to a terminal device, which can be a mobile phone or a wearable device. When the user needs to use the cooking appliance, he / she inputs the set temperature through the terminal device. The terminal device communicates with the controller, so that the controller can obtain the set temperature.

[0043] Step 104: Determine the operating strategy of the cooking appliance based on the temperature range of the set temperature.

[0044] Specifically, the temperature range refers to the temperature intervals pre-stored within the controller to match different operating strategies. In the scheme of this application embodiment, different operating strategies are pre-stored in the controller, and these operating strategies are stored in correspondence with temperature ranges. After acquiring the set temperature, the controller analyzes which temperature range the currently acquired set temperature falls within. After determining the temperature range of the set temperature, it matches it against the pre-stored correspondence between temperature ranges and operating strategies to obtain the operating strategy corresponding to the set temperature.

[0045] Step 106: According to the operating strategy, control the heating operation of the top heating element, bottom heating element and steam generator of the cooking appliance.

[0046] Specifically, please refer to the following: Figure 2 The top heating tube 201 is a heating tube installed on the first inner surface of the cooking appliance. The first inner surface is the inner surface away from the placement platform when the cooking appliance is normally placed, which is the top surface of the cooking cavity of the cooking appliance.

[0047] For details, please refer to the relevant documents. Figure 3The bottom heating element 301 is a heating element located on the second inner surface of the cooking appliance. The second inner surface is positioned opposite the first inner surface, specifically close to the inner surface of the placement platform, i.e., the bottom surface of the cooking cavity, when the cooking appliance is normally placed. Since the cooking cavity of the cooking appliance needs to hold the food to be heated, to avoid direct contact between the food and the bottom heating element 301, the bottom heating element 301 can be hidden within the housing.

[0048] For details, please refer to the relevant documents. Figure 4 The steam generator 401 is a device that generates steam by heating, and uses the steam to heat and cook food. The steam generator 401 can be installed on the side wall or bottom of the cooking appliance, etc., and there is no specific limitation.

[0049] In a more detailed embodiment, the number of heating tubes used to heat and generate steam in the steam generator is not unique; it can be set to two or more, thereby changing the steam generation capacity of the steam generator by changing the number of heating tubes in operation.

[0050] The operating strategy includes the specific operating modes of the top heating element, bottom heating element, and steam generator during the operation of the cooking appliance according to user needs. When the controller performs heating control based on the acquired operating strategy, the specific operating modes of the top heating element, bottom heating element, and steam generator will vary depending on the operating strategy. In this embodiment, the controller only needs to control the top heating element, bottom heating element, and steam generator to operate in the corresponding modes according to the acquired operating strategy to heat the food to be cooked.

[0051] The aforementioned operating method for cooking appliances allows for the acquisition of the set temperature during operation. Based on the temperature range of the set temperature, a corresponding operating strategy is matched to the appliance. Ultimately, the top heating element, bottom heating element, and steam generator are controlled according to the matched operating strategy. This approach allows for the control of the cooking appliance using different operating strategies based on the desired set temperature, resulting in diverse control logic and effectively improving the overall performance of the cooking appliance.

[0052] Please see Figure 5 In one embodiment, step 104 includes steps 502, 504 and 506.

[0053] Step 502: If the set temperature is within the first temperature range, determine the cooking appliance as the first operating strategy.

[0054] Step 504: If the set temperature is within the second temperature range, determine the cooking appliance as the second operating strategy.

[0055] Step 506: If the set temperature is within the third temperature range, determine that the cooking appliance is operating under the third operating strategy.

[0056] Specifically, the upper temperature limit of the second temperature range is less than or equal to the lower temperature limit of the first temperature range, and the upper temperature limit of the third temperature range is less than or equal to the lower temperature limit of the second temperature range.

[0057] This embodiment is explained by describing a scheme with three temperature ranges, each with a different operating strategy. The temperature ranges, from highest to lowest, are designated as the first, second, and third temperature ranges. Correspondingly, the operating strategy for the first temperature range is the first operating strategy, the operating strategy for the second temperature range is the second operating strategy, and the operating strategy for the third temperature range is the third operating strategy. Therefore, in actual operation, the controller determines the temperature range of the set temperature based on the user's input and then controls the cooking appliance using the operating strategy corresponding to that temperature range, i.e., controlling the top heating element, bottom heating element, and steam generator to heat and operate.

[0058] It is understood that in other embodiments, the temperature range can be set to more numbers, such as 4 or 5, according to actual needs. Correspondingly, different operating strategies can be configured for different temperature ranges so that the cooking appliance can operate with different operating strategies in combination with the user-input set temperature, effectively improving the diversity of the operating logic of the cooking appliance and improving the overall operating performance.

[0059] Please see Figure 6 In one embodiment, step 106 includes steps 602 and 604.

[0060] Step 602: If the running strategy is the first running strategy, obtain the set running time of the cooking appliance.

[0061] Step 604: Control the heating elements of the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the set running time.

[0062] Specifically, the set running time is the cumulative duration for which the cooking appliance needs to heat up, as set by the user. Under the first operating strategy, the set temperature required for heating by the cooking appliance is relatively high. In this case, the heating operation of the cooking appliance also needs to be controlled in conjunction with the set running time. That is, in the scheme of this embodiment, the first operating strategy is related to the set running time, and the first operating strategy will differ under different set running times. In this way, when the set temperature is relatively high, the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance is controlled in conjunction with the set running time, effectively improving the operating reliability of the cooking appliance.

[0063] Please see Figure 7 In one embodiment, the first operating strategy includes a first heating mode and a second heating mode. According to the set operating time, step 604 includes steps 702 and 704.

[0064] Step 702: If the set running time is less than or equal to the preset time threshold, control the top heating element, bottom heating element and steam generator of the cooking appliance to run in the first heating mode.

[0065] Step 704: If the set running time is greater than the preset time threshold, control the top heating element, bottom heating element and steam generator of the cooking appliance to run in the first heating mode until the cumulative heating time reaches the preset time threshold, and then control the bottom heating element to run in the second heating mode.

[0066] Specifically, the preset time threshold is the cumulative running time of the cooking appliance when the set temperature is within the first temperature range, which needs to be controlled by different first operating strategies. In this embodiment, when the set temperature is within the first temperature range, the heating control is further achieved by combining the set running time with different control modes.

[0067] Specifically, when the set running time is short, that is, when the set running time is less than or equal to the preset time threshold, the controller controls the top heating element, bottom heating element and steam generator of the cooking appliance to operate in the first heating mode until the set running time is reached and the cooking operation is completed.

[0068] If the set running time is relatively long, i.e., longer than the preset time threshold, the same control measures are applied during the period from the start of heating until the preset time threshold is reached, as if the set running time were less than or equal to the preset time threshold. Specifically, the top heating element, bottom heating element, and steam generator of the cooking appliance are initially controlled to operate in the first heating mode. After the cooking appliance has run for the preset time threshold, the bottom heating element is controlled to operate in the second heating mode, while the operation of the top heating element and steam generator remains unchanged, until the final cumulative heating time reaches the set running time, completing the cooking process.

[0069] It should be noted that the preset time threshold is not unique. In a more detailed embodiment, the preset time threshold can be set to 40 minutes. That is, when the temperature is determined to be within the first temperature range based on the set temperature, if the set running time is less than or equal to 40 minutes or greater than 40 minutes, the system will operate in either the first heating mode or a combination of the first heating mode and the second heating mode, respectively.

[0070] It is understood that, in one embodiment, the cooking appliance may be controlled by different control logics (i.e., the first heating mode and the first heating mode + the second heating mode) based on the relationship between the set temperature of the cooking appliance and the set temperature matching the first operating strategy, after obtaining the set temperature of the cooking appliance and the set operating time matching the set operating time and the preset time threshold.

[0071] In another embodiment, the set temperature of the cooking appliance can be obtained. If the set temperature matches the first operating strategy, the cooking appliance is first controlled to operate in a first heating mode. After operating in the first heating mode, it is then analyzed whether the set operating time is less than or equal to a preset time threshold. If the set operating time is less than or equal to the preset time threshold, the heating operation is directly terminated after the set operating time is reached. If the set operating time is greater than the preset time threshold, the bottom heating element is controlled to operate in a second heating mode after the preset time threshold is reached.

[0072] Please see Figure 8 In one embodiment, the top heating element, bottom heating element and steam generator of the cooking appliance are controlled to operate in a first heating mode, including steps 801, 802, 803 and 804.

[0073] Step 801: Control the top heating element and bottom heating element of the cooking appliance to start operating at the first duty cycle, and obtain the internal temperature of the cooking appliance in real time.

[0074] Step 802: If the internal temperature rises to the first preset temperature threshold, control the top heating element to stop running and control the steam generator of the cooking appliance to start running at full power.

[0075] Step 803: If the internal cavity temperature continues to rise, and the difference between the set temperature and the internal cavity temperature is less than or equal to the second preset temperature threshold, control the bottom heating tube to heat at the second duty cycle.

[0076] Step 804: If the internal temperature continues to rise and reaches the set temperature, control the steam generator to switch to single-tube alternating heating operation in duty cycle dynamic adjustment mode.

[0077] Specifically, the second duty cycle is less than the first duty cycle. The first preset temperature threshold is less than the set temperature, and the second preset temperature threshold can be further set to be less than the first preset temperature threshold. The duty cycle is the ratio of the heating element's heating operation time to its off-heating operation time within a unit of time. For example, a duty cycle of 15:45 means that within a 60-second period, the heating element operates for 15 seconds and then stops heating for 45 seconds. Full-power operation means that the heating element is fully in heating operation within a unit of time.

[0078] In this embodiment, after analyzing that the set temperature is within the first temperature range, the specific method for controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode is as follows:

[0079] First, the bottom heating element and the top heating element are simultaneously activated for preheating at a set first duty cycle. After preheating begins, a temperature sensor installed in the cooking cavity of the appliance collects the cavity temperature in real time and sends it to the controller. The controller compares and analyzes the real-time cavity temperature with a first preset temperature threshold to determine whether preheating is complete, i.e., whether the cavity temperature has risen to the first preset temperature threshold.

[0080] If the internal cavity temperature rises to the first preset temperature threshold, preheating is complete. At this point, the top heating element will stop operating, thus stopping heating, while the steam generator of the cooking appliance will start operating at full power. In this state, the bottom heating element will maintain its first duty cycle, and all heating elements in the steam generator will be activated, rapidly raising the internal cavity temperature to the set temperature at maximum power to ensure cooking efficiency.

[0081] Correspondingly, during the process of the steam generator and the bottom heating element rapidly heating the cooking cavity, the controller receives the internal cavity temperature collected and sent by the temperature acquisition device in real time, and calculates the difference between the set temperature and the internal cavity temperature to obtain the difference value. It then determines whether the difference value is less than or equal to the second preset temperature threshold, that is, whether the internal cavity temperature has risen to the size of the set temperature minus the second preset temperature threshold.

[0082] If the difference between the set temperature and the internal cavity temperature is less than or equal to the second preset temperature threshold, it means that the internal cavity temperature is about to reach the set temperature. In this case, to prevent the internal cavity temperature from rising too quickly and exceeding the set temperature, the heating power of the bottom heating element can be reduced. That is, the bottom heating element is controlled to operate at a second duty cycle that is less than the first duty cycle, slowing down the rate of increase in internal cavity temperature, and ultimately accurately raising the internal cavity temperature to the set temperature, thus improving heating accuracy.

[0083] Finally, as the cavity temperature slows its rate of increase and reaches the set temperature, to prevent excessive steam generation and reduce water accumulation at the bottom of the cooking appliance, the controller adjusts the steam generator's operating mode. This causes the steam generator to enter a dynamic duty cycle adjustment mode, operating with alternating single-tube heating. Specifically, after the cavity temperature reaches the set temperature, the bottom heating element maintains a constant second duty cycle, and the steam generator enters PID (Proportional-Integral-Derivative) duty cycle operation, with all heating elements (usually two, i.e., dual heating elements) working simultaneously, switching to alternating single-tube heating. In other words, the controller calculates the control quantity based on real-time feedback of the cavity temperature, using proportional, integral, and derivative algorithms, and dynamically adjusts the steam generator's duty cycle to better match the cavity temperature to the set temperature.

[0084] The above solution allows for rapid preheating and brings the internal cavity temperature to the set temperature. The coordinated operation of the bottom heating element and the steam generator effectively reduces steam condensation and water accumulation at the bottom of the cooking appliance, thus improving its cooking performance and increasing the steaming time.

[0085] In one embodiment, controlling the bottom heating element to operate in a second heating mode includes: controlling the bottom heating element to switch to heating operation with a third duty cycle.

[0086] Specifically, the third duty cycle is less than the second duty cycle. In the second heating mode, the controller only needs to adjust the duty cycle of the bottom heating tube so that the bottom heating tube operates with a lower duty cycle, while the operating status of the top heating tube and the steam generator remains unchanged, that is, the top heating tube is kept in the off state, and the steam generator is kept to operate in a single tube alternating heating mode with dynamic duty cycle adjustment.

[0087] In this way, if the set running time is greater than the preset time threshold, and the cumulative running time reaches the preset time threshold, the duty cycle of the bottom heating element is further reduced. This can prevent excessive water accumulation at the bottom of the cooking appliance while ensuring that the internal temperature is not out of control due to the bottom heating element's involvement, thus preventing temperature overshoot and improving the operational reliability of the cooking appliance.

[0088] Please see Figure 9 In one embodiment, step 106 further includes steps 902, 904, 906 and 908.

[0089] Step 902: If the operating strategy is the second operating strategy, control the top heating element and bottom heating element of the cooking appliance to start operating at the first duty cycle, and obtain the internal temperature of the cooking appliance in real time.

[0090] Step 904: If the internal temperature rises to the first preset temperature threshold, control the top heating element to stop operating and control the steam generator of the cooking appliance to start operating at full power.

[0091] Step 906: If the internal cavity temperature continues to rise, and the difference between the set temperature and the internal cavity temperature is less than or equal to the second preset temperature threshold, control the bottom heating tube to heat at the second duty cycle.

[0092] Step 908: If the internal temperature continues to rise and reaches the set temperature, control the steam generator to switch to single-tube alternating heating operation in duty cycle dynamic adjustment mode, and control the bottom heating tube to operate in the third duty cycle.

[0093] Specifically, the second duty cycle is less than the first duty cycle; the third duty cycle is less than the second duty cycle. In this embodiment, when the set temperature is within the second temperature range, the second operating strategy is similar to the first heating mode in the first operating strategy. Both include several stages: preheating by turning on the bottom and top heating tubes; rapid heating by turning on the bottom heating tube and steam generator; reducing the vacuum ratio of the bottom heating tube to slow the heating rate; and controlling the steam generator to switch to a single-tube alternating heating mode with dynamic duty cycle adjustment. The difference is that while controlling the steam generator to switch to single-tube alternating heating mode with dynamic duty cycle adjustment, the duty cycle of the bottom heating tube is also adjusted, i.e., the bottom heating tube is controlled to operate at a third duty cycle that is less than the second duty cycle.

[0094] Similarly, the solution in this embodiment can quickly preheat the inner cavity to the set temperature when the set temperature is within the second temperature range. Through the coordinated operation of the bottom heating tube and the steam generator, the phenomenon of steam condensation and water accumulation at the bottom of the cooking appliance is effectively reduced, thereby improving the cooking performance of the cooking appliance and increasing the steaming time.

[0095] It should be noted that the first duty cycle, the second duty cycle, the third duty cycle, and the values ​​of each preset temperature threshold are not unique. In one embodiment, the first duty cycle is the full-power operation duty cycle, the second duty cycle is (14-16):(46-44), the third duty cycle is (7.5-8.5):(52.5-51.5); and / or, the first preset temperature threshold is 40℃-50℃, and the second preset temperature threshold is 9℃-11℃.

[0096] Specifically, the full-power operation duty cycle means that the system is in heating operation state throughout the unit of time. The second duty cycle is (14-16):(46-44), meaning that within a unit of time of 60 seconds, the heating time is adjusted between 14 and 16 seconds, and the corresponding heating stop time will be adjusted between 46 and 44 seconds. For example, the second duty cycle can be set to 14:46, 15:45, 16:44, etc. The third duty cycle is similar to the second duty cycle and will not be described in detail here. For example, in a more detailed embodiment, the third duty cycle can be set to 8:52, 7.5:52.5, or 8.5:51.5. The first preset temperature threshold can be any value between 40℃ and 50℃, such as 40℃, 41℃, 42℃, 48℃, 49℃, or 50℃. The second preset temperature threshold can be a value between 9℃ and 11℃, such as 9℃, 10℃, or 11℃, etc., without specific limitation.

[0097] In one embodiment, when controlling the top heating element and bottom heating element of the cooking appliance to operate at a first duty cycle, the method further includes: controlling the back fan of the cooking appliance to operate.

[0098] Specifically, in this embodiment, after the controller activates the top and bottom heating elements of the cooking appliance at a first duty cycle, it further activates the rear fan of the cooking appliance to ensure more even heat distribution and transfer. It can be understood that during subsequent cooking, the rear fan is kept running to ensure even heat distribution within the cooking cavity of the appliance.

[0099] Please see Figure 10 In one embodiment, step 106 further includes steps 1002 and 1004.

[0100] Step 1002: If the operating strategy is the third operating strategy, control the steam generator of the cooking appliance to operate in single-tube heating mode and obtain the internal temperature of the cooking appliance in real time.

[0101] Step 1004: If the internal cavity temperature rises, and the difference between the set temperature and the internal cavity temperature is less than or equal to the third preset temperature threshold, control the steam generator to switch to single-tube heating operation in duty cycle dynamic adjustment mode.

[0102] Specifically, when the set temperature is relatively low, i.e., within the third temperature range, the processing logic is not limited by the cooking time selection, and preheating is unnecessary. At this point, the top and bottom heating elements do not need to operate. First, the steam generator is controlled to heat in single-element heating mode, meaning only one heating element operates at full power or another set duty cycle until the internal cavity temperature rises to a level where the difference between the set temperature and the internal cavity temperature is less than or equal to the third preset temperature threshold. After this, the steam generator is directly controlled to enter single-element heating operation in dynamic duty cycle adjustment mode, i.e., the steam generator enters PID duty cycle operation. The controller calculates the control quantity based on real-time feedback of the internal cavity temperature, using proportional, integral, and derivative algorithms. This dynamically adjusts the duty cycle of the single element in the steam generator, allowing the internal cavity temperature to better follow the set temperature, until the final running time reaches the set time, ending the cooking process.

[0103] In this way, when the set temperature is within the third temperature range, the steam generator can be controlled to operate in different states at different stages, reducing steam condensation and the phenomenon of water accumulation at the bottom of the cooking appliance, thereby improving the cooking performance of the appliance and increasing the steaming time.

[0104] It should be noted that the value of the third preset temperature threshold is not unique. In one embodiment, the third preset temperature threshold can be set to be greater than the second preset temperature threshold and less than the first preset temperature threshold. Further, in one embodiment, the third preset temperature threshold is 14℃-16℃. That is, the third preset temperature threshold can be set to any value between 14℃ and 16℃, such as 14℃, 15℃, or 16℃.

[0105] It is understood that the size of the first temperature range, the second temperature range, and the third temperature range are not unique. In one embodiment, the first temperature range is greater than or equal to 90°C and less than or equal to 100°C; the second temperature range is greater than or equal to 70°C and less than 90°C; and the third temperature range is greater than or equal to 40°C and less than 70°C.

[0106] Specifically, in this embodiment, if the controller detects a set temperature greater than or equal to 90°C and less than or equal to 100°C, it will further analyze the relationship between the set running time and the preset time threshold to determine whether to operate in the first heating mode or in a combination of the first and second heating modes. When the set temperature is detected to be greater than or equal to 70°C and less than 90°C, the controller will not need to consider the set running time and will control the cooking appliance to operate using the second operating strategy. Similarly, when the set temperature is detected to be greater than or equal to 40°C and less than 70°C, the controller also does not need to consider the set running time and will not need to activate the top and bottom heating elements; instead, it will control the cooking appliance to operate using the third operating strategy via the steam generator.

[0107] To facilitate understanding of the technical solution of this application, the following detailed embodiments will be used to explain and illustrate this application.

[0108] First, when the set temperature T is 100℃ and the temperature is 90℃ ≤ T ≤ 100℃, the set operating time needs to be further determined. If the set operating time t ≤ 40min, the controller will start the top and bottom heating elements simultaneously (starting at full power duty cycle), and the back fan will also be activated to ensure more even heat dissipation and transfer. When the internal temperature reaches 40℃ (the first preset temperature threshold), the top heating element will stop working, and the boiler (steam generator) will start at full power (i.e., the two bottom heating elements will start heating simultaneously). At this time, the bottom heating element will continue to operate (maintaining full power duty cycle).

[0109] When the internal temperature continues to rise to the set temperature -10℃ (the second preset temperature threshold), the boiler continues to work at full power. At this time, the bottom heating tube switches from continuous operation to a 15:45 duty cycle (the second duty cycle) (the cycle is 60s, of which 15s is on and 45s is off).

[0110] When the internal temperature continues to rise to the set temperature, the boiler enters PID duty cycle operation. At this time, the boiler switches from simultaneous operation of dual heating tubes to alternating heating of a single heating tube (the specific opening and closing time of the boiler heating tube is determined by the PID algorithm). The bottom heating tube continues to operate at a duty cycle of 15:45 until the set running time is reached, and then the operation ends.

[0111] When the set temperature T is between 90℃ and 100℃, if the set running time t > 40 minutes, the working logic for the first 40 minutes is the same as that for the set running time t ≤ 40 minutes. The main difference is that after 40 minutes of operation, i.e., after the working time > 40 minutes, the boiler continues to operate with PID duty cycle (single tube heating), while the bottom heating tube switches from a 15:45 duty cycle to an 8:52 duty cycle (third duty cycle) until the set running time is reached and the operation ends.

[0112] Secondly, when the temperature is 70℃≤Set Temperature T<90℃, the logic processing will not be limited by the cooking time selection. The control logic is as follows: the top heating element and the bottom heating element start working simultaneously (starting at full power duty cycle), and the rear fan is also controlled to participate in the operation. When the internal temperature rises to 40℃ (the first preset temperature threshold), the top heating element is controlled to stop working, and the boiler starts working at full power (i.e., the two heating elements at the bottom of the boiler start heating simultaneously). At this time, the bottom heating element continues to participate in the operation (maintaining full power duty cycle).

[0113] When the internal temperature continues to rise to the set temperature -10℃ (the second preset temperature threshold), the boiler continues to operate at full power. At this time, the bottom heating element switches from continuous operation to a 15:45 duty cycle (the second duty cycle). When the internal temperature continues to rise to the set temperature, the boiler enters PID duty cycle operation. At this time, the boiler switches from simultaneous operation of dual heating elements to alternating heating of a single heating element. Simultaneously, the bottom heating element switches from a 15:45 duty cycle to an 8:52 duty cycle (the third duty cycle) until the set running time is reached, at which point the operation ends.

[0114] Alternatively, if the temperature is 40℃≤set temperatureT<70℃, the logic processing is not limited by the cooking time selection. In this case, the top heating element and the bottom heating element do not work, and the boiler is first controlled to heat a single element (which can be full power duty cycle or other duty cycles). When the internal temperature rises to T-15℃ (the third preset temperature threshold), the boiler enters PID duty cycle operation, and at this time, it also maintains single-element heating until the set running time t is reached, and then the operation ends.

[0115] Through the control logic of the above embodiment, the water accumulation at the bottom of the cooking appliance can be greatly reduced, achieving a water accumulation of less than 30g at the bottom during the cooking process, which is far lower than the industry average (about 200g), thus improving the cooking performance of the cooking appliance and increasing the operating time of steaming.

[0116] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0117] Based on the same inventive concept, this application also provides an operating device for a cooking appliance to implement the operating method of the cooking appliance described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations in one or more operating device embodiments provided below can be found in the limitations of the operating method above, and will not be repeated here.

[0118] Please see Figure 11 A cooking appliance operating device includes: a temperature setting acquisition module 112, an operating strategy matching module 114, and a heating control module 116.

[0119] The set temperature acquisition module 112 is used to acquire the set temperature of the cooking appliance; the operation strategy matching module 114 is used to determine the operation strategy of the cooking appliance according to the temperature range of the set temperature; the heating control module 116 is used to control the heating operation of the top heating element, bottom heating element and steam generator of the cooking appliance according to the operation strategy.

[0120] In one embodiment, the operation strategy matching module 114 is further configured to determine the cooking appliance as the first operation strategy if the set temperature is in the first temperature range; determine the cooking appliance as the second operation strategy if the set temperature is in the second temperature range; and determine the cooking appliance as the third operation strategy if the set temperature is in the third temperature range.

[0121] In one embodiment, the heating control module 116 is further configured to, if the operating strategy is the first operating strategy, obtain the set operating time of the cooking appliance; and control the top heating element, bottom heating element and steam generator of the cooking appliance to operate according to the set operating time.

[0122] In one embodiment, the heating control module 116 is further configured to control the top heating element, bottom heating element and steam generator of the cooking appliance to operate in a first heating mode if the set running time is less than or equal to a preset time threshold; and to control the top heating element, bottom heating element and steam generator of the cooking appliance to operate in the first heating mode if the set running time is greater than the preset time threshold, until the cumulative heating time reaches the preset time threshold, and then control the bottom heating element to operate in a second heating mode.

[0123] In one embodiment, the heating control module 116 is further configured to control the top heating element and the bottom heating element of the cooking appliance to operate at a first duty cycle and to acquire the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, the top heating element is controlled to stop operating and the steam generator of the cooking appliance is controlled to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to a second preset temperature threshold, the bottom heating element is controlled to heat at a second duty cycle; if the internal temperature continues to rise to the set temperature, the steam generator is controlled to switch to a single-element alternating heating mode with dynamic duty cycle adjustment.

[0124] In one embodiment, the heating control module 116 is also used to control the bottom heating tube to switch to heating operation with a third duty cycle.

[0125] In one embodiment, the heating control module 116 is further configured to, if the operating strategy is the second operating strategy, control the top heating element and the bottom heating element of the cooking appliance to start operating at a first duty cycle and acquire the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, control the top heating element to stop operating and control the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to the second preset temperature threshold, control the bottom heating element to heat at a second duty cycle; if the internal temperature continues to rise to the set temperature, control the steam generator to switch to a single-tube alternating heating mode with dynamic duty cycle adjustment and control the bottom heating element to operate at a third duty cycle.

[0126] In one embodiment, the heating control module 116 is also used to control the back fan of the cooking appliance to start operation.

[0127] In one embodiment, the heating control module 116 is further configured to control the steam generator of the cooking appliance to operate in single-tube heating mode if the operating strategy is the third operating strategy, and to obtain the internal temperature of the cooking appliance in real time; if the internal temperature rises, and the difference between the set temperature and the internal temperature is less than or equal to the third preset temperature threshold, control the steam generator to switch to single-tube heating operation in duty cycle dynamic adjustment mode.

[0128] Each module in the aforementioned operating device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the operations corresponding to each module.

[0129] The operating mechanism of the aforementioned cooking appliance can acquire the set temperature of the appliance during operation. Then, based on the temperature range of the set temperature, it matches a corresponding operating strategy to the appliance, ultimately controlling the top heating element, bottom heating element, and steam generator to operate according to the matched strategy. This solution allows for the control of the cooking appliance using different operating strategies based on the desired set temperature, resulting in diverse control logic and effectively improving the overall performance of the cooking appliance.

[0130] Please refer to the following: Figures 2-4 This application provides a cooking appliance, including a housing, a top heating element 201, a bottom heating element 301, a steam generator 401, and a controller (not shown). The top heating element 201 is disposed on the first inner surface of the housing, and the bottom heating element 301 is disposed on the second inner surface of the housing opposite to the first inner surface. The top heating element 201, the bottom heating element 301, and the steam generator 401 are respectively connected to the controller, which is used to execute the steps of the above-described operating method.

[0131] Specifically, the type of cooking appliance is not unique; it can be a cooking appliance that includes a heating element and a steam generator 401. For example, in a more detailed embodiment, the cooking appliance can be a steam oven or a steam oven. The operation method of the cooking appliance is as shown in the above embodiments and accompanying drawings, and will not be repeated here.

[0132] The aforementioned cooking appliance can acquire its set temperature during operation. Then, based on the temperature range of the set temperature, a corresponding operating strategy is matched to the appliance. Finally, the top heating element 201, bottom heating element 301, and steam generator 401 are controlled according to the matched operating strategy. This solution allows for the control of the cooking appliance using different operating strategies based on the desired set temperature, resulting in diverse control logic and effectively improving the overall performance of the cooking appliance.

[0133] This application embodiment also provides a computer device, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0134] Obtain the set temperature of the cooking appliance; determine the operating strategy of the cooking appliance based on the temperature range of the set temperature; and control the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy.

[0135] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0136] Obtain the set temperature of the cooking appliance; determine the operating strategy of the cooking appliance based on the temperature range of the set temperature; and control the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy.

[0137] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0138] Obtain the set temperature of the cooking appliance; determine the operating strategy of the cooking appliance based on the temperature range of the set temperature; and control the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy.

[0139] The aforementioned computer equipment, storage media, and computer program products can acquire the set temperature of the cooking appliance during operation. Then, based on the temperature range of the set temperature, they match a corresponding operating strategy to the cooking appliance, ultimately controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the matched operating strategy. This solution allows for the control of the cooking appliance using different operating strategies based on the desired set temperature, resulting in diverse control logic and effectively improving the overall performance of the cooking appliance.

[0140] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0141] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for operating a cooking appliance, characterized in that, include: Obtain the set temperature of the cooking appliance; If the set temperature is within the first temperature range, the cooking appliance is determined to be operating under the first operating strategy. If the set temperature is within the second temperature range, the cooking appliance is determined to be operating under the second operating strategy; the upper temperature limit of the second temperature range is less than or equal to the lower temperature limit of the first temperature range. If the set temperature is within the third temperature range, the cooking appliance is determined to be operating under the third operating strategy; the upper limit of the third temperature range is less than or equal to the lower limit of the second temperature range. According to the operating strategy, the top heating element, bottom heating element, and steam generator of the cooking appliance are controlled to operate. The top heating element is disposed on the first inner surface of the cooking appliance, and the bottom heating element is disposed on the second inner surface of the cooking appliance. The first inner surface is the top surface of the cooking cavity of the cooking appliance, and the second inner surface is the bottom surface of the cooking cavity of the cooking appliance. The step of controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy includes: if the operating strategy is the second operating strategy, controlling the top heating element and bottom heating element of the cooking appliance to operate at a first duty cycle and acquiring the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, controlling the top heating element to stop operating and controlling the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, making the difference between the set temperature and the internal temperature less than or equal to the second preset temperature threshold, controlling the bottom heating element to operate at a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to reach the set temperature, controlling the steam generator to switch to a single-element alternating heating operation in a duty cycle dynamic adjustment mode, and controlling the bottom heating element to operate at a third duty cycle; the third duty cycle is less than the second duty cycle. The step of controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to heat and operate according to the operating strategy further includes: if the operating strategy is a first operating strategy, obtaining the set operating time of the cooking appliance; and controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to heat and operate according to the set operating time. The first operating strategy includes a first heating mode and a second heating mode. The step of controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate according to the set operating time includes: if the set operating time is less than or equal to a preset time threshold, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode; if the set operating time is greater than the preset time threshold, controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode until the cumulative heating time reaches the preset time threshold, then controlling the bottom heating element to operate in the second heating mode. The method of controlling the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in a first heating mode includes: controlling the top heating element and bottom heating element of the cooking appliance to operate with a first duty cycle and acquiring the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, controlling the top heating element to stop operating and controlling the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to a second preset temperature threshold, controlling the bottom heating element to operate with a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to reach the set temperature, controlling the steam generator to switch to a duty cycle dynamic adjustment mode for single-element alternating heating operation.

2. The operating method according to claim 1, characterized in that, The control of the bottom heating element to operate in a second heating mode includes: The bottom heating element is controlled to switch to heating operation with a third duty cycle; the third duty cycle is less than the second duty cycle.

3. The operating method according to claim 1 or 2, characterized in that, The first duty cycle is the full-power operation duty cycle, the second duty cycle is (14-16):(46-44), and the third duty cycle is (7.5-8.5):(52.5-51.5); and / or, The first preset temperature threshold is 40℃-50℃, and the second preset temperature threshold is 9℃-11℃.

4. The operating method according to claim 1 or 2, characterized in that, When the top heating element and bottom heating element of the cooking appliance are turned on and running at a first duty cycle, the method further includes: Control the back fan of the cooking appliance to start running.

5. The operating method according to claim 1, characterized in that, The method of controlling the heating operation of the top heating element, bottom heating element, and steam generator of the cooking appliance according to the operating strategy further includes: If the operating strategy is the third operating strategy, the steam generator of the cooking appliance is controlled to operate in single-tube heating mode, and the internal temperature of the cooking appliance is acquired in real time. If the internal cavity temperature rises, such that the difference between the set temperature and the internal cavity temperature is less than or equal to a third preset temperature threshold, the steam generator is controlled to switch to single-tube heating operation in a duty cycle dynamic adjustment mode.

6. The operating method according to claim 5, characterized in that, The third preset temperature threshold is 14℃-16℃.

7. The operating method according to claim 1 or 2, characterized in that, The first temperature range is greater than or equal to 90°C and less than or equal to 100°C; the second temperature range is greater than or equal to 70°C and less than 90°C; and the third temperature range is greater than or equal to 40°C and less than 70°C.

8. A device for operating a cooking appliance, characterized in that, include: The temperature acquisition module is used to acquire the set temperature of the cooking appliance; The operation strategy matching module is used to determine the cooking appliance as the first operation strategy if the set temperature is within the first temperature range; If the set temperature is within the second temperature range, the cooking appliance is determined to operate under the second operating strategy; the upper temperature limit of the second temperature range is less than or equal to the lower temperature limit of the first temperature range. If the set temperature is within the third temperature range, the cooking appliance is determined to operate under the third operating strategy; the upper temperature limit of the third temperature range is less than or equal to the lower temperature limit of the second temperature range. A heating control module is used to control the heating operation of the top heating element, bottom heating element and steam generator of the cooking appliance according to the operating strategy. The top heating element is disposed on the first inner surface of the cooking appliance, and the bottom heating element is disposed on the second inner surface of the cooking appliance. The first inner surface is the top surface of the cooking cavity of the cooking appliance, and the second inner surface is the bottom surface of the cooking cavity of the cooking appliance. The heating control module is further configured to: if the operating strategy is the second operating strategy, control the top heating element and the bottom heating element of the cooking appliance to operate at a first duty cycle, and acquire the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, control the top heating element to stop operating, and control the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to the second preset temperature threshold, control the bottom heating element to operate at a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to the set temperature, control the steam generator to switch to a single-element alternating heating mode with dynamic duty cycle adjustment, and control the bottom heating element to operate at a third duty cycle; the third duty cycle is less than the second duty cycle. The heating control module is further configured to: if the operating strategy is the first operating strategy, obtain the set operating time of the cooking appliance; and control the top heating element, bottom heating element and steam generator of the cooking appliance to operate according to the set operating time; The heating control module is further configured to: if the set running time is less than or equal to a preset time threshold, control the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in a first heating mode; if the set running time is greater than the preset time threshold, control the top heating element, bottom heating element, and steam generator of the cooking appliance to operate in the first heating mode until the cumulative heating time reaches the preset time threshold, and then control the bottom heating element to operate in a second heating mode. The heating control module is further configured to: control the top heating element and bottom heating element of the cooking appliance to operate at a first duty cycle, and acquire the internal temperature of the cooking appliance in real time; if the internal temperature rises to a first preset temperature threshold, control the top heating element to stop operating, and control the steam generator of the cooking appliance to start operating at full power; if the internal temperature continues to rise, such that the difference between the set temperature and the internal temperature is less than or equal to a second preset temperature threshold, control the bottom heating element to operate at a second duty cycle; the second duty cycle is less than the first duty cycle; if the internal temperature continues to rise to the set temperature, control the steam generator to switch to a single-element alternating heating mode with dynamic duty cycle adjustment.

9. A cooking utensil, characterized in that, The device includes a housing, a top heating pipe, a bottom heating pipe, a steam generator, and a controller. The top heating pipe is disposed on a first inner surface of the housing, and the bottom heating pipe is disposed on a second inner surface of the housing opposite to the first inner surface. The top heating pipe, the bottom heating pipe, and the steam generator are respectively connected to the controller, which is used to execute the steps of the operating method according to any one of claims 1-7.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the running method according to any one of claims 1 to 7.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the running method according to any one of claims 1 to 7.

12. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the operating method as described in any one of claims 1 to 7.

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