A cooking apparatus and a control method thereof

Abstract

This application provides a cooking device and its control method, particularly relating to the field of kitchen appliance technology, for precisely controlling the cooking temperature of the cooking device. The cooking device includes: a housing forming a cooking cavity, within which a baking area and a steaming area are provided; a water pump for supplying water to the steaming area; a heating device disposed within the cooking cavity for heating the baking and steaming areas; a first temperature sensor disposed within the cooking cavity for detecting the temperature value of the steaming area; and a controller configured to: preheat the baking and steaming areas after cooking begins; perform steam-baking temperature control after preheating; acquire the current temperature value of the steaming area in real time during cooking; and when the current temperature value of the steaming area exceeds a predetermined first steaming temperature threshold, calculate the water injection amount based on the temperature difference between the current temperature value of the steaming area and the first steaming temperature threshold, and control the water pump to inject water into the steaming area based on the water injection amount.

Description

Technical Field

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

[0002] Currently, with the improvement of living standards, cooking appliances have gradually become indispensable household appliances. Cooking appliances, such as steam ovens, are machines that contain food in a sealed space and heat it for cooking. In a steam oven, food can be steamed and baked simultaneously.

[0003] However, in related technologies, when using a steam oven to steam and bake food simultaneously, the cooking temperature of the two zones is usually maintained by controlling the heating duty cycle of the steaming and baking zones. However, since heat has the characteristic of spontaneously transferring from the high-temperature zone to the low-temperature zone, if the constant cooking temperatures set for the steaming and baking zones are inconsistent, the temperatures of the two zones will tend to be the same during synchronous cooking. This causes the temperatures of the two zones inside the steam oven to fluctuate around their respective constant cooking temperatures, making it difficult to achieve precise temperature control inside the steam oven.

[0004] Therefore, how to accurately control the cooking temperature of cooking equipment is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a cooking device and its control method for precisely controlling the cooking temperature of the cooking device.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] In a first aspect, a cooking apparatus is provided, the cooking apparatus comprising:

[0008] The oven body has an internal cooking cavity, which contains a baking area and a steaming area;

[0009] The water inlet pump is used to supply water to the steaming area;

[0010] A heating device, disposed within the cooking cavity, includes a first heating element and a steam generator; the first heating element is used to heat the baking area; the steam generator is used to heat the clean water pumped in by the water inlet pump to provide steam to the steaming area for heating the steaming area.

[0011] The first temperature sensor is located inside the cooking cavity and is used to detect the temperature value of the steaming area;

[0012] The controller is configured as follows:

[0013] After cooking begins, the first heating element and the steam generator are controlled to preheat the baking area and the steaming area respectively;

[0014] After preheating, steam-bake temperature control is performed to cook the food in the baking area and the steaming area at the predetermined target baking temperature and target steaming temperature, respectively.

[0015] During the cooking process, the current temperature value of the steaming area is obtained in real time through the first temperature sensor;

[0016] When the current temperature of the steaming zone exceeds the predetermined first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature of the steaming zone and the target steaming temperature, and the water pump is controlled to inject water into the steaming zone based on the water injection volume.

[0017] The technical solution provided in this application provides at least the following beneficial effects: During the simultaneous steaming and baking process, the current temperature value of the steaming area is obtained, and the water injection amount is calculated based on the temperature difference between the current temperature value and the target steaming temperature. Then, based on this water injection amount, the water pump is controlled to inject water into the steaming area. In this way, on the one hand, precise control of the cooking temperature in the steaming area can be achieved through accurate calculation of the water injection amount, ensuring that the steaming area remains at the set target cooking temperature to achieve the preset cooking effect. On the other hand, it can effectively avoid excessive water injection in the steaming area during temperature control, which would result in excessive residual water in the steamer and affect the cooking effect.

[0018] In some embodiments, a box is provided inside the cooking cavity, and a steaming area is defined inside the box. The controller is specifically configured to: when the target steaming temperature is greater than the target baking temperature, calculate the water injection amount based on the specific heat of the box, the temperature difference between the current temperature value of the steaming area and the target steaming temperature; wherein, the specific heat of the box is calculated based on the specific heat capacity and weight of the box.

[0019] The above technical solution has the following advantages or beneficial effects: the calculation method for the amount of water is determined based on the relationship between the target steaming temperature and the target baking temperature, taking into account the characteristics of the box, making the calculation of the amount of water more accurate, thereby controlling the temperature of the steaming area more precisely and further improving the cooking effect.

[0020] In some embodiments, a box is provided inside the cooking cavity, and a steaming area is defined inside the box. The controller is specifically configured to calculate the amount of water to be injected based on the specific heat of the box, the heat dissipation coefficient of the box, the heat absorption of water injected per unit weight, and the temperature difference between the current temperature of the steaming area and the target steaming temperature when the target baking temperature is greater than the target steaming temperature.

[0021] The specific heat of the box is calculated based on its specific heat capacity and weight; the heat dissipation coefficient of the box is determined based on its material; and the heat absorption per unit weight of injected water is calculated based on the temperature of the injected water.

[0022] The above technical solution has the following advantages or beneficial effects: the calculation method for determining the amount of water to be injected is based on the relationship between the target steaming temperature and the target baking temperature. It not only considers the characteristics of the box, but also combines the heat absorbed by the water injected per unit weight to calculate the amount of water to be injected, making the calculation of the amount of water to be injected more accurate, thereby controlling the temperature of the steaming area more precisely and further improving the cooking effect.

[0023] In some embodiments, the controller is specifically configured to: when the target baking temperature is greater than the target steaming temperature, after calculating the water injection amount, if the current temperature value of the steaming area exceeds a predetermined first steaming temperature threshold, control the water pump to inject water into the steaming area based on the water injection amount.

[0024] The above technical solution has the following advantages or beneficial effects: when the target baking temperature is greater than the target steaming temperature, if the temperature of the steaming area exceeds the threshold, water is added according to the calculated water injection amount, thus avoiding the temperature of the steaming area fluctuating between different temperature control cycles and affecting the cooking effect of the food.

[0025] In some embodiments, the controller is specifically configured to: when the target baking temperature is greater than the target steaming temperature, and the target baking temperature is greater than the first baking temperature threshold, control the water pump to inject water into the steaming area based on the water injection amount in each predetermined steaming and baking temperature control cycle after calculating the water injection amount.

[0026] The above technical solution has the following advantages or beneficial effects: When the target baking temperature is greater than the target steaming temperature, and the target baking temperature is greater than the first baking temperature threshold, water is injected according to the calculated amount in each temperature control cycle, which ensures the stability and consistency of the temperature control strategy for the steaming area in different temperature control cycles. In the process of steaming and baking at the same time, steaming and baking are maintained simultaneously only by baking and water injection, without the need to turn on the steam generator, thus avoiding the problem of excessive power when steaming and baking are carried out at the same time.

[0027] In some embodiments, the controller is specifically configured to: if the target steaming temperature is greater than the target baking temperature, during the preheating process, prioritize starting the steam generator to heat the steaming area, and obtain the current temperature value of the steaming area in real time through the first temperature sensor;

[0028] When the current temperature of the steaming zone reaches the predetermined preheating temperature threshold, the steam generator is turned off and the first heating element is turned on to heat the baking zone.

[0029] The above technical solution has the following advantages or beneficial effects: the preheating strategy is determined according to the relationship between the target steaming temperature and the target baking temperature. When the target steaming temperature is greater than the target baking temperature, the preheating process prioritizes starting the steam generator to heat the steaming area. When the temperature of the steaming area reaches the predetermined preheating temperature threshold, it then switches to the first heating element to heat the baking area. This optimization of the preheating sequence enables the cooking equipment to reach the required preheating temperature of different areas more quickly, improves preheating efficiency, and avoids energy waste.

[0030] In some embodiments, the cooking device further includes: a second temperature sensor disposed inside the cooking cavity for detecting the temperature value of the baking area;

[0031] The controller described above is specifically configured as follows:

[0032] If the target baking temperature is greater than the target steaming temperature, during the preheating process, the first heating element is activated first to heat the baking area, and the current temperature value of the baking area is obtained in real time through the second temperature sensor.

[0033] When the current temperature value of the baking zone reaches the predetermined baking preheating temperature threshold, the current temperature value of the steaming zone is obtained through the first temperature sensor.

[0034] When the current temperature of the steaming area is less than the predetermined steaming preheating temperature threshold, the first heating element is turned off and the steam generator is started to heat the steaming area.

[0035] When the current temperature value of the steaming zone is between the steaming preheating temperature threshold and the first steaming temperature threshold, steam-baking temperature control is performed;

[0036] When the current temperature of the steaming zone is greater than the first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature of the steaming zone and the target steaming temperature, and the water pump is controlled to inject water into the steaming zone based on the water injection volume.

[0037] The above technical solution has the following advantages or beneficial effects: Adding a second temperature sensor to detect the temperature of the baking zone allows the controller to more comprehensively grasp the temperature information of the two zones within the cooking cavity. Determining the preheating strategy based on the relationship between the target steaming temperature and the target baking temperature, rationally arranging the preheating sequence, and performing corresponding operations according to the temperature state of different zones enables the cooking equipment to reach the required preheating temperature of different zones more quickly, improving preheating efficiency while avoiding energy waste.

[0038] In some embodiments, the cooking device further includes: a second temperature sensor disposed inside the cooking cavity for detecting the temperature value of the baking area;

[0039] The controller described above is specifically configured as follows:

[0040] After preheating is completed, the current temperature values ​​of the steaming area and the baking area are obtained by the first temperature sensor and the second temperature sensor, respectively.

[0041] The target duty cycle of the temperature control device is determined based on the current temperature value of the steaming zone, the current temperature value of the baking zone, the target steaming temperature, and the target baking temperature, and the temperature control device is controlled to operate at the target duty cycle for steaming and baking temperature control; the temperature control device includes one or more of a heating device and a water pump.

[0042] The above technical solution has the following advantages or beneficial effects: Based on the target cooking temperature values ​​of the two cooking zones and the current temperature values ​​within the two cooking zones, the target duty cycle of the temperature regulating device related to temperature control in the cooking equipment is determined, and then the duty cycle of the temperature regulating device is adjusted to the target duty cycle. In this way, the cooking temperature of the cooking equipment can be precisely controlled through one or more temperature-related regulating devices in the heating device and the water pump.

[0043] In some embodiments, the controller is specifically configured to: obtain a preset cooking time based on the user's operation behavior, and turn off the heating device when the cooking device has performed cooking for the set cooking time.

[0044] The above technical solution has the following advantages or beneficial effects: it obtains the preset cooking time based on the user's operation behavior, and turns off the heating device when the set time is reached, realizing the timer function of the cooking process, providing convenience for the user, eliminating the need for the user to pay attention to the cooking time at all times, avoiding overcooking of the ingredients due to excessive cooking time, and ensuring the cooking effect.

[0045] In some embodiments, the cooking apparatus further includes:

[0046] The container is set inside the cooking cavity, and the steaming area is defined inside the container;

[0047] The second heating element is located inside the cooking cavity and is used to heat the baking area. When the second heating element heats the baking area, the heat is radiated to the box body.

[0048] The controller is specifically configured such that when the first heating element is in the open state and the current temperature value of the steaming area is less than the target steaming temperature, the second heating element is controlled to open and cooperate with the first heating element to heat the baking area.

[0049] The above technical solution has the following advantages or beneficial effects: It adds a second heating element to heat the baking area, and when the first heating element is turned on and the temperature of the steaming area is lower than the target steaming temperature, it controls the second heating element to turn on and cooperate with the first heating element to heat the baking area. This design can enhance the heating effect of the baking area under specific conditions, and at the same time utilize the heat radiated from the baking area to the steaming area, which helps maintain the temperature of the steaming area and improves the overall cooking efficiency and effect.

[0050] Secondly, embodiments of this application provide a cooking apparatus, the cooking apparatus comprising:

[0051] The oven body has an internal cooking cavity, which contains a baking area and a steaming area;

[0052] A heating device, disposed within the cooking cavity, includes:

[0053] The first heating element is used to heat the baking area;

[0054] A steam generator is used to heat the clean water pumped in by the inlet water pump to provide steam for the steaming area.

[0055] The second temperature sensor is located inside the cooking cavity and is used to detect the temperature value of the baking area;

[0056] A water pump, located inside the cooking cavity, is used to supply water to the steaming area;

[0057] The controller is configured as follows:

[0058] After cooking begins, the first heating element and the steam generator are controlled to preheat the baking area and the steaming area respectively;

[0059] After preheating, steam-bake temperature control is performed to cook the food in the baking area and the steaming area at the predetermined target baking temperature and target steaming temperature, respectively.

[0060] If the target baking temperature is greater than the target steaming temperature, and the target baking temperature is greater than the first baking temperature threshold, the current temperature value of the baking area is obtained in real time through the second temperature sensor.

[0061] During each predetermined cycle in the cooking process, the water injection amount is calculated based on the current temperature value of the baking zone, and the water pump is controlled to inject water into the steaming zone based on the water injection amount.

[0062] Thirdly, embodiments of this application provide a method for controlling a cooking device, the method comprising:

[0063] The target baking temperature and target steaming temperature are obtained based on the user's operation behavior;

[0064] After cooking begins, the first heating element and the steam generator, which are located in the cooking cavity, preheat the baking area and the steaming area, respectively.

[0065] After preheating, steam-bake temperature control is performed to cook the food in the baking area and the steaming area at the predetermined target baking temperature and target steaming temperature, respectively.

[0066] During the cooking process, the current temperature value of the steaming area is obtained in real time by a first temperature sensor installed inside the cooking cavity;

[0067] When the current temperature of the steaming zone exceeds the predetermined first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature of the steaming zone and the target steaming temperature, and the water pump is controlled to inject water into the steaming zone based on the water injection volume.

[0068] The beneficial effects of the second and third aspects of this application can be referred to in the analysis of the beneficial effects of the first aspect, and will not be repeated here.

[0069] Other features and advantages of the invention will become apparent from the following detailed description, or may be learned in part by practice of the invention.

[0070] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention. Attached Figure Description

[0071] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0072] Figure 1 A schematic diagram of the structure of a cooking device provided in this application embodiment. Figure 1 ;

[0073] Figure 2 A schematic diagram of the structure of a cooking device provided in this application embodiment. Figure 2 ;

[0074] Figure 3 A schematic diagram of the hardware structure of a controller provided in an embodiment of this application;

[0075] Figure 4 A schematic diagram illustrating the collaborative operation of various components of a cooking device provided in this application embodiment;

[0076] Figure 5 A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 1 ;

[0077] Figure 6A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 2 ;

[0078] Figure 7 A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 3 ;

[0079] Figure 8 A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 4 ;

[0080] Figure 9 A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 5 ;

[0081] Figure 10 A flowchart illustrating a control method for a cooking device provided in this application embodiment. Figure 6 . Detailed Implementation

[0082] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0083] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0084] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0085] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0086] The terms “comprising” and “having”, and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0087] Furthermore, in the embodiments of this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0088] This application provides a cooking device and its control method. Considering the thermodynamic properties of water and water vapor, when the temperature in the steaming area rises, injecting clean water into the steaming area can reduce the temperature of the steaming area. Moreover, the amount of water injected is proportional to the temperature of the steaming area. In this way, the cooking temperature of the steaming area can be precisely controlled by the precise amount of water injected.

[0089] The cooking equipment provided in this application embodiment can be a steam oven, which is a kitchen appliance that combines steaming and baking functions, also known as a steam-oven combo. Steam ovens not only possess the functions of traditional steamers and ovens, but also offer unique features such as superheated steaming and steam-roasting, making cooking methods more diverse and efficient.

[0090] This application does not impose specific limitations on the types of steam ovens.

[0091] To further describe the technical solutions of the embodiments of this application, as follows: Figure 1 The diagram shown is a structural diagram of a steam oven provided in an embodiment of this application.

[0092] Reference Figure 1 and Figure 2 The steam oven 1 includes: a housing 101.

[0093] In some embodiments, the housing 101 protects the electrical components inside the steam oven and has a cooking cavity with an opening on one side for placing food. The cooking cavity includes a baking area and a steaming area for baking and steaming food, respectively. Exemplarily, the housing 101 can be as follows: Figure 1 The shape shown is approximately a cuboid, but it can also be other shapes.

[0094] In some embodiments, the front wall of the housing 101 may be provided with a loading / unloading port. This loading / unloading port can connect to the cooking chamber. Food ingredients can be placed into the cooking chamber through the loading / unloading port for cooking.

[0095] In some embodiments, such as Figure 1 As shown, a box 102 is provided inside the cooking cavity, defining a steaming area inside the box, and the space outside the box 102 is a baking area.

[0096] In some embodiments, a grill is provided inside the cooking cavity to divide the cooking cavity into an upper baking area and a lower steaming area.

[0097] In some embodiments, within the cooking cavity, the box body 102 is disposed at the bottom, the grill is disposed in the middle, a baking area is defined above the grill, and a steaming area is defined inside the box body 102.

[0098] The steam oven 1 includes a water inlet pump 105, which is located inside the cooking cavity and is used to supply water to the steaming area or the steam generator.

[0099] The steam oven 1 includes a heating element disposed within the cooking cavity for heating food placed inside the cooking cavity.

[0100] For example, the heating device includes a baking heating system and a steaming heating system.

[0101] The baking heating element system includes a first heating element for heating the baking area. The first heating element can be an infrared heating element, a resistance heating element, a graphene heating element, a carbon fiber heating element, etc., and can be installed above, on the sides, or at the back of the steam oven.

[0102] In some embodiments, the heating pipe system also includes a convection fan.

[0103] The baking heating tube system includes a steam generator for heating the clean water pumped in by the water inlet pump 105 to provide steam to the steaming area for heating the steaming area.

[0104] In some embodiments, one end of the steam generator is connected to the water inlet pump 105 and the other end is connected to the steaming zone, for heating water to boiling to generate steam.

[0105] Optionally, the steam generator can be vertically mounted on the back of the outer side of the housing 101.

[0106] Optionally, the baking heating system and the steaming heating system can be turned on or off intermittently according to the temperature control method to ensure that the temperature in the baking area and the steaming area is consistent with the set temperature.

[0107] For example, when the target baking temperature of the baking area is set to 220°C, the first heating element continues to heat until the temperature of the baking area reaches 225°C and then stops. When the temperature in the baking area is detected to be below 215°C, heating begins again, thereby ensuring that the temperature of the baking area is maintained at around 220°C.

[0108] The steam oven 1 includes a first temperature sensor 106. The first temperature sensor 106 is disposed inside the cooking cavity and is used to detect the temperature value of the steaming area.

[0109] In some embodiments, the steam oven 1 includes a controller 107.

[0110] After the controller 107 starts cooking, it controls the first heating element and the steam generator to preheat the baking area and the steaming area respectively.

[0111] After preheating, steam and bake temperature control is performed so that the baking area and steaming area cook the food at the predetermined target baking temperature TK0 and target steaming temperature Ts0, respectively.

[0112] When using a steam oven to steam or bake food, temperature control is typically achieved by adjusting the heating duty cycle of the steaming and baking zones to maintain the cooking temperature in both areas. However, since steaming requires heating food with steam, and the temperature of saturated steam under standard atmospheric pressure is approximately 100°C, steam exceeding this temperature is considered superheated steam. Excessive superheating can negatively impact the cooking results; therefore, the steaming temperature is usually set at 100°C or a similar temperature. Baking, on the other hand, is typically set at 150°C or higher. Furthermore, because heat spontaneously transfers from high-temperature zones to low-temperature zones, when steaming and baking occur simultaneously within the same cooking cavity, the temperature in the steaming zone can rise due to internal heat transfer absorbing heat from the baking zone, thus affecting the cooking results in the steaming zone.

[0113] In some embodiments, during the cooking process, the current temperature value ts0 of the steaming area is acquired in real time by the first temperature sensor 106.

[0114] When the current temperature value ts0 of the steaming area exceeds the predetermined first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature value ts0 of the steaming area and the target steaming temperature, and the water pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0115] By simultaneously steaming and baking, the current temperature of the steaming area is obtained, and the water injection amount is calculated based on the temperature difference between the current temperature and the target steaming temperature. This water injection amount is then used to control the water pump 105 to inject water into the steaming area. This approach allows for precise control of the cooking temperature in the steaming area through accurate water calculation, ensuring the area remains at the set target temperature for the desired cooking effect. Furthermore, it effectively prevents excessive water injection during temperature control, which could lead to excessive residual water in the steamer and negatively impact the cooking results.

[0116] For example, when the target steaming temperature Ts0 of the steaming area is set to 100℃, the temperature control range of the steaming area is set to 100℃±5℃, and the first steaming temperature threshold is set to 105℃. During the steaming and baking temperature control process, if the temperature in the steaming area exceeds 105℃, the water injection volume is calculated and clean water is injected into the steaming area to cool it down according to the water injection volume.

[0117] In some embodiments, the controller 107 is specifically configured to: calculate the water injection volume v1 based on the specific heat of the box 102, the current temperature value of the steaming area and the temperature difference between the target steaming temperature when the target steaming temperature Ts0 is greater than the target baking temperature TK0.

[0118] The specific heat of the box 102 is calculated based on the specific heat capacity and weight of the box 102.

[0119] The calculation method for water injection is determined based on the relationship between the target steaming temperature Ts0 and the target baking temperature TK0. The characteristics of the box 102 are taken into account, making the calculation of water injection more accurate, thereby controlling the temperature of the steaming area more precisely and further improving the cooking effect.

[0120] In some embodiments, the target steaming temperature Ts0 is greater than the target baking temperature TK0, the set target steaming temperature Ts0 of the steaming zone is 100°C, the water injection volume v1 is proportional to the temperature exceeding the steaming zone, and this proportionality coefficient can be obtained through prior measurement. The specific formula for calculating the water injection volume v1 is as follows:

[0121] Water injection volume v1=(ts0-Ts0)*C1.

[0122] Wherein, C1 is the proportionality coefficient between the water injection volume v1 and the temperature exceeding the steaming zone, which is determined by the thermodynamic properties of the box 102 and the water.

[0123] In some embodiments, C1 is calculated using the following formula:

[0124] C1 = Cs / C.

[0125] Where Cs is the specific heat of box 102, which is the product of the specific heat capacity of box 102 and the weight of box 102, and represents the temperature change characteristics of box 102 when it absorbs or releases heat. C is the specific heat capacity of water.

[0126] In some embodiments, the controller 107 is specifically configured to: when the target baking temperature TK0 is greater than the target steaming temperature Ts0, calculate the water injection volume v2 based on the specific heat of the box 102, the heat dissipation coefficient of the box 102, the heat absorption of water injected per unit weight, and the temperature difference between the current temperature of the steaming area and the target steaming temperature.

[0127] The specific heat of the box 102 is calculated based on its specific heat capacity and weight; the heat dissipation coefficient of the box 102 is determined based on its material; and the heat absorption per unit weight of injected water is calculated based on the temperature of the injected water.

[0128] In some embodiments, the target steaming temperature Ts0 is greater than the target baking temperature TK0, and the formula for calculating the water injection volume v2 is as follows:

[0129] Water injection volume v2=((ts0-Ts0)*Cs+(Tk0-Ts0)*Ck) / R.

[0130] Wherein, Cs is the specific heat of box 102, which is the product of the specific heat capacity of box 102 and the weight of box 102, representing the temperature change characteristics of box 102 when it absorbs or releases heat.

[0131] Ck is the heat dissipation coefficient of the box body 102, which specifically represents the coefficient of the heat dissipation capacity of the box body 102 to the cooking cavity outside it, that is, the coefficient of the heat dissipation capacity of the steaming area to the baking area. Its specific value can be determined by prior measurement.

[0132] (Tk0-Ts0)*Ck represents the heat dissipation of the box 102.

[0133] R is the heat absorbed per unit weight of injected water. The formula for calculating R is:

[0134] R = (Cw - Cn) * C * Q.

[0135] Where Cw is the boiling point of water, specifically 100; Cn is the temperature at which the water is injected, usually preset to 25℃; C is the specific heat capacity of water; and Q is the latent heat of vaporization of water.

[0136] The above technical solution has the following advantages or beneficial effects: the calculation method for determining the amount of water to be injected is based on the relationship between the target steaming temperature Ts0 and the target baking temperature TK0. It not only considers the characteristics of the box 102, but also combines the heat absorbed by the water injected per unit weight to calculate the amount of water to be injected, making the calculation of the amount of water to be injected more accurate, thereby controlling the temperature of the steaming area more precisely and further improving the cooking effect.

[0137] In some embodiments, such as Figures 1-2 As shown, since the container 102, which defines the steaming area, and the rack, which defines the baking area, are located in the same cooking cavity, and the space outside the container 102 is connected to the baking area above the rack, when the baking temperature in the baking area is greater than the steaming temperature inside the container 102, the steaming temperature inside the container 102 will not fall below the steaming temperature control range after it first reaches the target steaming temperature.

[0138] The controller 107 is specifically configured to: when the target baking temperature TK0 is greater than the target steaming temperature Ts0, in each predetermined steaming and baking temperature control cycle after calculating the water injection volume v2, if the current temperature value of the steaming area exceeds the predetermined first steaming temperature threshold, the water pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0139] The above technical solution has the following advantages or beneficial effects: When the target baking temperature TK0 is greater than the target steaming temperature Ts0, in each predetermined steaming and baking temperature control cycle after calculating the water injection amount, if the temperature of the steaming area exceeds the threshold, water is injected according to the water injection amount, which ensures the stability and consistency of the temperature control strategy for the steaming area in different temperature control cycles, and avoids the temperature of the steaming area fluctuating in different temperature control cycles, which affects the cooking effect of the food.

[0140] In some embodiments, the controller 107 is specifically configured to: when the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than a first baking temperature threshold,

[0141] In each predetermined cycle after the water injection volume is calculated, the water inlet pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0142] The above technical solution has the following advantages or beneficial effects: When the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than the first baking temperature threshold, water is injected according to the calculated amount in each temperature control cycle, which ensures the stability and consistency of the temperature control strategy for the steaming area in different cycles. In the process of steaming and baking at the same time, steaming and baking are maintained simultaneously only by baking and water injection, without the need to turn on the steam generator, thus avoiding the problem of excessive power when steaming and baking are carried out at the same time.

[0143] In some embodiments, the cooking device further includes a second temperature sensor 110 disposed within the cooking cavity for detecting the temperature value of the baking area.

[0144] The controller 107 is specifically configured to: when the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than the first baking temperature threshold, the controller 107 acquires the current temperature value of the baking area in real time through the second temperature sensor 110.

[0145] During each predetermined cycle in the cooking process, the water injection volume v2 is calculated based on the current temperature value of the baking zone, and the water injection pump is controlled to inject water into the steaming zone based on the water injection volume v2.

[0146] In some embodiments, when the target steaming temperature Ts0 is greater than the target baking temperature TK0, and the target baking temperature TK0 is greater than the first baking temperature threshold, the formula for calculating the water injection volume v2 is as follows:

[0147] Water injection volume v2=((tk0-Cw)*Ckt*T / R.

[0148] Where tk0 is the current temperature of the baking zone, and the water injection operation is only performed when tk0 > the first parameter; Cw is the boiling point of water, specifically 100. Ckt is the coefficient of heat dissipation capacity of the box 102 to the cavity per unit time; T is the predetermined period, which can be related to the steam baking temperature control period, or can be preset to a natural time such as 1 minute or 2 minutes. R is the heat absorbed per unit weight of injected water.

[0149] For example, the first parameter is selected as the boiling point temperature of water, 100°C.

[0150] The formula for calculating R is: R = (Cw - Cn) * C * Q.

[0151] Where Cn is the temperature of the injected water, which is usually preset to 25℃; C is the specific heat capacity of water; and Q is the latent heat of vaporization of water.

[0152] In this case, the water injection volume v2 can be understood as the amount of water maintained in the steaming zone.

[0153] In some embodiments, the controller 107 is specifically configured to: when the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than the first baking temperature threshold, when the steam baking temperature control begins, first control the water pump 105 to inject an initial amount of clean water v0 into the steaming area.

[0154] After the initial water volume v0 is completed, in each subsequent predetermined cycle, the water volume v2 is calculated based on the current temperature value of the baking area, and the water pump is controlled to inject water into the steaming area based on the water volume v2.

[0155] In some embodiments, the formula for calculating the water injection volume v0 is as follows:

[0156] Water injection volume v0=v3+(Tk1-Cw)*Cs / R.

[0157] Where Tk1 is the temperature at which the baking zone begins to control the temperature during steam baking; Cw is the boiling point of water, with a specific value of 100; Cs is the specific heat of the box 102; v3 is the amount of water that can cover the bottom of the box 102, and v3>Cw*Cs / R, to ensure that the initial water volume is greater than 0 when starting at room temperature.

[0158] In some embodiments, the controller 107 is specifically configured to: if the target steaming temperature Ts0 is greater than the target baking temperature TK0, during the preheating process, the steam generator is started first to heat the steaming area, and the current temperature value of the steaming area is obtained in real time through the first temperature sensor 106;

[0159] When the current temperature of the steaming zone reaches the predetermined preheating temperature threshold, the steam generator is turned off and the first heating element is turned on to heat the baking zone.

[0160] The above technical solution has the following advantages or beneficial effects: the preheating strategy is determined according to the relationship between the target steaming temperature Ts0 and the target baking temperature TK0. When the target steaming temperature Ts0 is greater than the target baking temperature TK0, the preheating process prioritizes starting the steam generator to heat the steaming area. When the temperature of the steaming area reaches the predetermined preheating temperature threshold, the system switches to the first heating element to heat the baking area. This optimization of the preheating sequence enables the cooking equipment to reach the required preheating temperature of different areas more quickly, improves preheating efficiency, and avoids energy waste.

[0161] In some embodiments, the cooking device further includes a second temperature sensor 110 disposed within the cooking cavity for detecting the temperature value of the baking area.

[0162] The aforementioned controller 107 is specifically configured as follows:

[0163] If the target baking temperature TK0 is greater than the target steaming temperature Ts0, during the preheating process, the first heating element is activated first to heat the baking area, and the current temperature value of the baking area is obtained in real time through the second temperature sensor 110.

[0164] When the current temperature value of the baking zone reaches the predetermined baking preheating temperature threshold, the current temperature value of the steaming zone is obtained through the first temperature sensor 106.

[0165] When the current temperature of the steaming area is less than the predetermined steaming preheating temperature threshold, the first heating element is turned off and the steam generator is started to heat the steaming area.

[0166] When the current temperature value of the steaming zone is between the steaming preheating temperature threshold and the first steaming temperature threshold, steam-baking temperature control is performed;

[0167] When the current temperature of the steaming zone is greater than the first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature of the steaming zone and the target steaming temperature, and the water pump 105 is controlled to inject water into the steaming zone based on the water injection volume.

[0168] The above technical solution has the following advantages or beneficial effects: Adding a second temperature sensor 110 to detect the temperature of the baking zone allows the controller 107 to more comprehensively grasp the temperature information of the two zones within the cooking cavity. By determining the preheating strategy based on the relationship between the target steaming temperature Ts0 and the target baking temperature TK0, rationally arranging the preheating sequence, and performing corresponding operations according to the temperature state of different zones, the cooking equipment can reach the required preheating temperature of different zones more quickly, improving preheating efficiency while avoiding energy waste.

[0169] In some embodiments, the cooking device further includes: a second temperature sensor 110 disposed in the cooking cavity for detecting the temperature value of the baking area;

[0170] The aforementioned controller 107 is specifically configured as follows:

[0171] After preheating is completed, the current temperature values ​​of the steaming area and the baking area are obtained by the first temperature sensor 106 and the second temperature sensor 110, respectively.

[0172] The target duty cycle of the temperature regulating device is determined based on the current temperature value of the steaming zone, the current temperature value of the baking zone, the target steaming temperature Ts0, and the target baking temperature TK0, and the temperature regulating device is controlled to operate at the target duty cycle for steaming and baking temperature control; the temperature regulating device includes one or more of the heating device and the water pump 105.

[0173] Duty cycle refers to the ratio of the working time of the temperature control device to the total time. For example, when the duty cycle of the temperature control device is 60%, it means that the temperature control device is in the on state for 60% of the time and in the off state for the remaining 40% of the time.

[0174] The above technical solution has the following advantages or beneficial effects: Based on the target cooking temperature values ​​of the two cooking zones and the current temperature values ​​within the two cooking zones, the target duty cycle of the temperature regulating device related to temperature control in the cooking equipment is determined, and then the duty cycle of the temperature regulating device is adjusted to the target duty cycle. In this way, the cooking temperature of the cooking equipment can be precisely controlled by one or more temperature-related temperature regulating devices in the heating device and the water inlet pump 105.

[0175] In some embodiments, the controller 107 is specifically configured to: obtain a preset cooking time based on the user's operation behavior, and turn off the heating device when the cooking device performs cooking to the set cooking time.

[0176] The above technical solution has the following advantages or beneficial effects: it obtains the preset cooking time based on the user's operation behavior, and turns off the heating device when the set time is reached, realizing the timer function of the cooking process, providing convenience for the user, eliminating the need for the user to pay attention to the cooking time at all times, avoiding overcooking of the ingredients due to excessive cooking time, and ensuring the cooking effect.

[0177] In some embodiments, the cooking apparatus further includes:

[0178] The container 102 is disposed inside the cooking cavity, and the steaming area is defined inside the container 102;

[0179] The second heating element is disposed inside the cooking cavity and is used to heat the baking area. When the second heating element heats the baking area, the heat is radiated to the box body 102.

[0180] The controller 107 is specifically configured to: when the first heating element is in the open state and the current temperature value of the steaming area is less than the target steaming temperature Ts0, control the second heating element to open and cooperate with the first heating element to heat the baking area.

[0181] The above technical solution has the following advantages or beneficial effects: It adds a second heating element to heat the baking area, and when the first heating element is turned on and the temperature of the steaming area is lower than the target steaming temperature Ts0, it controls the second heating element to turn on and cooperate with the first heating element to heat the baking area. This design can enhance the heating effect of the baking area under specific conditions, and at the same time utilize the heat radiation from the baking area to the steaming area's housing 102, which helps maintain the temperature of the steaming area and improves the overall cooking efficiency and effect.

[0182] In some embodiments, such as Figure 3 As shown, the controller 107 is electrically connected to the heating device, the steam generator, the water pump 105, and the first temperature sensor 106.

[0183] Controller 107 refers to a device that can generate operation control signals based on instruction opcodes and timing signals to instruct the steam oven to execute control commands. Exemplarily, controller 107 can be a central processing unit (CPU), a general-purpose processor (QP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Controller 107 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.

[0184] In other embodiments, the controller 107 can be a microcontroller unit (PCU). A PCU, also known as a single-chip microcomputer, is a microcontroller with a reduced frequency and specifications of a central processing unit. It integrates peripheral interfaces such as memory, counters, USB, A / D converter, UART, PLC, DPA, and even LCD driver circuitry onto a single chip, forming a chip-level computer for different application scenarios.

[0185] In addition, the controller 107 can be used to control the operation of each component in the steam oven 1 so that each component of the steam oven can operate to achieve each predetermined function of the steam oven.

[0186] In some embodiments, the steam oven provided in this application may further include: a water inlet pipe, a water storage tank, a flow meter 108, a drain pipe, and a drain pump 109, wherein the flow meter 108 and the drain pump 109 are electrically connected to the controller 107.

[0187] In some embodiments, a water inlet pipe is disposed between the water storage tank and the steam generator, with one end of the water inlet pipe connected to the water storage tank and the other end connected to the steam generator. In this way, water in the water storage tank can enter the steam generator through the water inlet pipe.

[0188] In some embodiments, the water storage tank may be horizontally disposed on the top of the outer side of the tank body 101 for storing water.

[0189] In some embodiments, a flow meter 108 is disposed at the inlet of a steam generator to detect the amount of water entering the steam generator.

[0190] In some embodiments, a drain pipe is provided between the water storage tank and the steam generator, with one end of the drain pipe connected to the water storage tank and the other end connected to the steam generator. This allows water from the steam generator to enter the water storage tank through the drain pipe.

[0191] In some embodiments, a drain pump 109 is provided on a drain pipe for pumping water from the steam generator to a water storage tank.

[0192] In some embodiments, such as Figure 5 As shown, the steam oven provided in this application may further include a third temperature sensor, which is electrically connected to the controller 107. The third temperature sensor may be located at the outlet of the steam generator to detect the temperature value at the outlet of the steam generator.

[0193] In some embodiments, the steam oven provided in this application may further include an interactive panel 111, continuing as follows: Figure 3 As shown, the interactive panel 111 is electrically connected to the controller 107. The interactive panel 111 is located on the outer surface of the housing 101 and is used to receive operation commands input by the user through the interactive panel 111. For example, the user selects a cooking recipe through the interactive panel 111. Alternatively, the user issues a heating command to the cooking device through the interactive panel 111.

[0194] Optionally, the interactive panel 111 is also used to display the content of the cooking recipe, including the cooking mode, target cooking temperature value, target cooking time, etc.

[0195] In some embodiments, the steam oven provided in this application may further include a memory, which is electrically connected to the controller 107. The memory is used to calculate the obtained water injection volume.

[0196] In other embodiments, the memory is also used to store the target duty cycle of each temperature control device.

[0197] The memory can be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, random access memory (RAM) or other types of dynamic storage devices capable of storing information and instructions. It can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer. This application embodiment does not impose any limitations on this. The memory can exist independently or be integrated with the processor. The memory may contain computer program code. The processor executes the computer program code stored in the memory to implement the control method of the cooking device provided in this application embodiment.

[0198] It is understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the cooking device. In other embodiments of this application, the cooking device may include more or fewer components than illustrated, or combine some components, or separate some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0199] The following is combined Figure 4 This application describes the collaborative operation between the various components of the cooking equipment provided.

[0200] like Figure 4 As shown, the interactive panel 111 is connected to the controller 107. Based on the user's selection on the interactive panel 111, the controller 107 issues commands to the heating device to turn it on or off, and also issues control commands to the steam generator to turn it on or off. Upon receiving the heating command, the heating device heats the baking area; the steam generator starts or stops generating steam; the first temperature sensor 106 detects the temperature value in the steaming area and sends the detected temperature value to the controller 107; the second temperature sensor 110 detects the temperature value in the baking area and sends the detected temperature value to the controller 107. The flow meter 108 detects the water flow rate into the steam generator and sends the detected water flow rate to the controller 107.

[0201] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0202] like Figure 5 As shown, this application embodiment provides a control method for a cooking device, applied to a controller 107 of the cooking device. The method includes the following steps:

[0203] S1. Obtain the user's preset target baking temperature and target steaming temperature based on the user's operation behavior.

[0204] Optionally, the user's operation involves selecting a desired recipe on the interactive display panel 111. The recipe includes the corresponding cooking mode, target baking temperature Tk0, target steaming temperature Ts0, and set time t0. Alternatively, the user can directly set the target baking temperature Tk0, target steaming temperature Ts0, and set time t0. After selection, cooking begins. For user convenience, there is no mandatory relationship between Tk0 and Ts0; they can be freely set within the oven's limits.

[0205] S2. After cooking begins, the first heating element and the steam generator located in the cooking cavity are controlled to preheat the baking area and the steaming area respectively.

[0206] After preheating, steam and bake temperature control is performed to cook the food in the baking area and the steaming area at the predetermined target baking temperature and target steaming temperature, respectively.

[0207] S3. During the cooking process, the current temperature value of the steaming area is obtained in real time by the first temperature sensor 106 set in the cooking cavity.

[0208] Optionally, the first temperature sensor 106 acquires the temperature value within the steaming area in real time and periodically sends the detected temperature value to the controller 107. For example, the detection period of the first temperature sensor 106 can be 50 milliseconds, and the temperature value sending period can be 30 seconds.

[0209] S4. When the current temperature value of the steaming area exceeds the predetermined first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature value of the steaming area and the target steaming temperature, and the water inlet pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0210] S5. Cooking ends after the cooking time t0 is completed.

[0211] Figure 5The illustrated embodiment offers at least the following beneficial effects: During the simultaneous steaming and baking process, the current temperature of the steaming area is acquired, and the water injection amount is calculated based on the temperature difference between the current temperature and the target steaming temperature. This water injection amount is then used to control the water pump 105 to inject water into the steaming area. In this way, on the one hand, precise control of the cooking temperature in the steaming area can be achieved through accurate calculation of the water injection amount, ensuring that the steaming area remains at the set target cooking temperature to achieve the desired cooking effect. On the other hand, it effectively avoids excessive water injection into the steaming area during temperature control, which could lead to excessive residual water in the steamer and affect the cooking effect.

[0212] In some embodiments, such as Figure 6 As shown, when the target steaming temperature is higher than the target baking temperature, step S2 can be specifically implemented as follows:

[0213] S201. The steam generator is started first to heat the steaming area, and the current temperature value of the steaming area is obtained in real time through the first temperature sensor 106.

[0214] S202. When the current temperature value of the steaming area reaches the predetermined steaming preheating temperature threshold, the steam generator is turned off and the first heating element is turned on to heat the baking area.

[0215] In some embodiments, such as Figure 7 As shown, when the target baking temperature is greater than the target steaming temperature, step S2 can be specifically implemented as follows:

[0216] S201. The first heating element is activated first to heat the baking area, and the current temperature value of the baking area is obtained in real time through the second temperature sensor 110.

[0217] S202. When the current temperature value of the baking zone reaches the predetermined baking preheating temperature threshold, the current temperature value of the steaming zone is obtained through the first temperature sensor 106.

[0218] S203. Determine the relationship between the current temperature value of the steaming zone and the predetermined steaming preheating temperature threshold and the first steaming temperature threshold.

[0219] When the current temperature of the steaming zone is lower than the predetermined preheating temperature threshold, the first heating element is turned off and the steam generator is started to heat the steaming zone.

[0220] When the current temperature value of the steaming zone is between the steaming preheating temperature threshold and the first steaming temperature threshold, steam baking temperature control is performed.

[0221] When the current temperature of the steaming zone is greater than the first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature of the steaming zone and the target steaming temperature, and the water pump 105 is controlled to inject water into the steaming zone based on the water injection volume.

[0222] In some embodiments, such as Figure 8 As shown, when the target steaming temperature is higher than the target baking temperature, step S3 can be specifically implemented as follows:

[0223] S301. Calculate the water injection volume v1 based on the specific heat of the box 102, the temperature difference between the current temperature value of the steaming area and the target steaming temperature.

[0224] The specific heat of the box 102 is calculated based on its specific heat capacity and weight.

[0225] S302. Based on the water injection volume v1, control the water inlet pump 105 to inject water into the steaming area.

[0226] In some embodiments, such as Figure 8 As shown, when the target baking temperature is greater than the target steaming temperature, step S3 can be specifically implemented as follows:

[0227] S301. Calculate the water injection volume v2 based on the specific heat of the box 102, the heat dissipation coefficient of the box 102, the heat absorption of water injected per unit weight, and the temperature difference between the current temperature of the steaming area and the target steaming temperature.

[0228] The specific heat of the box 102 is calculated based on its specific heat capacity and weight; the heat dissipation coefficient of the box 102 is determined based on its material; and the heat absorption per unit weight of injected water is calculated based on the temperature of the injected water.

[0229] S302. Based on the water injection volume v2, control the water inlet pump 105 to inject water into the steaming area.

[0230] In some embodiments, such as Figure 8 As shown, when the target baking temperature TK0 is greater than the target steaming temperature Ts0, step S3 above further includes the following steps:

[0231] S303. In each predetermined steaming and baking temperature control cycle after calculating the water injection volume v2, if the current temperature value of the steaming area exceeds the predetermined first steaming temperature threshold, the water pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0232] In some embodiments, such as Figure 9As shown, when the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than the first baking temperature threshold, the above step S3 can be specifically implemented as follows:

[0233] Optionally, the first baking temperature threshold is greater than 120°C.

[0234] S301. Obtain the predetermined period based on user operation behavior.

[0235] S302, Control the water inlet pump 105 to inject clean water of initial volume v0 into the steaming area.

[0236] S303. Calculate the water injection volume v2 based on the current temperature value of the baking area, the coefficient of heat dissipation capacity of box 102 to cavity per unit time, and the heat absorption of water injected per unit weight.

[0237] S304. In each predetermined cycle after calculating the water injection volume v2, the water inlet pump 105 is controlled to inject water into the steaming area based on the water injection volume.

[0238] Optionally, in step S304, if the first temperature sensor 106 is set in the steaming area, clean water with a volume of v2 can be injected when the steaming area reaches 100°C. When the steaming area exceeds 100°C by a certain value, such as 5%, step S302 is executed, and clean water with an initial volume of v0 is injected before continuing to step S304.

[0239] In some embodiments, when the target baking temperature TK0 is greater than the target steaming temperature Ts0, and the target baking temperature TK0 is greater than the first baking temperature threshold, step S3 above further includes the following steps:

[0240] S305. When baking is about to end, such as when there is 1 minute left in the baking countdown, pause baking and allow the steam generator to heat up, so that the steam can carry the hot water out of the pipeline.

[0241] The following is combined Figure 10 This application describes a control method for a cooking device.

[0242] Optionally, the temperature control range for steaming is set to 95%Ts0-105%Ts0, and the temperature control range for baking is set to 95%Tk0-105%Tk0. Then, the preheating threshold for steaming and the preheating threshold for baking are set to 95%Ts0 and 95%Tk0 respectively, and the first steaming temperature threshold is 105%Ts0.

[0243] Optionally, the first heating element is a heating tube.

[0244] Start cooking the recipe.

[0245] Determine whether the target steaming temperature Ts0 is greater than the target baking temperature Tk0.

[0246] If the target steaming temperature Ts0 is greater than the target baking temperature Tk0:

[0247] First, steam is introduced into the steaming area and it is determined whether the current temperature value of the steaming area has reached 95%Ts0; if not, steam is continuously introduced into the steaming area to heat up the temperature until the current temperature value of the steaming area reaches 95%Ts0. Then, the heating tube is turned on to heat the baking area and it is determined whether the current temperature of the baking area has reached 95%Tk0.

[0248] If the current temperature of the baking area has not reached 95%Tk0, keep the heating element on to continuously heat the baking area until the current temperature of the baking area reaches 95%Tk0.

[0249] Start steaming and baking temperature control, and monitor the current temperature ts0 of the steaming area in real time to determine whether the current temperature ts0 of the steaming area is less than 105%Ts0;

[0250] If the current temperature ts0 of the steaming zone is less than 105%Ts0, the heating tube heats the baking zone at the target duty cycle, and the steam generator is turned on to supply steam to the steaming zone while the heating tube is off;

[0251] If the current temperature ts0 of the steaming zone is greater than 105%Ts0, then control the water pump 105 to inject clean water with a volume of v1 into the steaming zone.

[0252] If the target steaming temperature Ts0 is less than the target baking temperature Tk0:

[0253] First, use the heating element to heat the baking area and determine whether the current temperature value of the baking area has reached 95%Tk0;

[0254] If 95% Tk0 is not reached, keep the heating element on to continuously heat and raise the temperature of the baking area.

[0255] After the current temperature of the baking zone reaches 95%Tk0, determine whether the current temperature ts0 of the steaming zone exceeds 105%Ts0.

[0256] If the current temperature ts0 of the steaming area exceeds 105% of Ts0, then control the water pump 105 to inject clean water with a volume of v2 into the steaming area.

[0257] If the current temperature ts0 of the steaming area does not exceed 105%Ts0, determine whether the current temperature ts0 of the steaming area exceeds 95%Ts0.

[0258] If the current temperature ts0 of the steaming zone does not exceed 95% of Ts0, then turn off the heating element and replenish steam to the steaming zone;

[0259] If the current temperature ts0 of the steaming area exceeds 95% of Ts0, then steam baking temperature control will begin, and the current temperature ts0 of the steaming area will be monitored in real time to determine whether the current temperature ts0 of the steaming area is less than 105% of Ts0.

[0260] If the current temperature ts0 of the steaming zone is less than 105%Ts0, the heating tube heats the baking zone at the target duty cycle, and the steam generator is turned on to supply steam to the steaming zone while the heating tube is off;

[0261] If the current temperature ts0 of the steaming zone is greater than 105%Ts0, then control the water pump 105 to inject clean water with a volume of v2 into the steaming zone.

[0262] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0263] This application embodiment can divide the controller 107 into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0264] This application also provides a computer-readable storage medium including computer-executable instructions that, when run on a computer, cause the computer to execute any of the control methods for cooking equipment provided in the above embodiments.

[0265] This application also provides a computer program product containing computer execution instructions, which, when run on a computer, causes the computer to execute any of the control methods for cooking equipment provided in the above embodiments.

[0266] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer-executable instructions. When these computer-executable instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer-executable instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0267] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, the disclosure, and the appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0268] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely illustrative descriptions of the application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0269] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cooking apparatus, characterized by, include: The box body has an internal cooking cavity, which includes a baking area and a steaming area. A heating device, disposed within the cooking cavity, includes: A first heating element, the first heating element being used to heat the baking area; A steam generator is used to heat the clean water pumped in by the inlet water pump to provide steam for the steaming area, so as to heat the steaming area; A first temperature sensor is installed inside the cooking cavity to detect the temperature value of the steaming area; A water pump, located inside the cooking cavity, is used to supply water to the steaming area; The controller is configured as follows: After cooking begins, the first heating element and the steam generator are controlled to preheat the baking area and the steaming area, respectively. After preheating, steam-bake temperature control is performed so that the baking area and the steaming area cook the food at the predetermined target baking temperature and target steaming temperature, respectively. During the cooking process, the current temperature value of the steaming area is obtained in real time through the first temperature sensor; When the current temperature value of the steaming area exceeds the predetermined first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature value of the steaming area and the target steaming temperature, and the water inlet pump is controlled to inject water into the steaming area based on the water injection volume.

2. The cooking apparatus according to claim 1, characterized in that, A box is provided inside the cooking cavity, and a steaming area is defined within the box. The controller is configured to: When the target steaming temperature is greater than the target baking temperature, the water injection volume is calculated based on the specific heat of the box, the temperature difference between the current temperature of the steaming area and the target steaming temperature; wherein, the specific heat of the box is calculated based on the specific heat capacity and weight of the box.

3. The cooking apparatus according to claim 1 or 2, characterized in that, A box is provided inside the cooking cavity, and a steaming area is defined within the box. The controller is configured to: When the target baking temperature is greater than the target steaming temperature, the amount of water injected is calculated based on the specific heat of the box, the heat dissipation coefficient of the box, the heat absorption of water injected per unit weight, and the temperature difference between the current temperature of the steaming area and the target steaming temperature. The specific heat of the box is calculated based on its specific heat capacity and weight; the heat dissipation coefficient of the box is determined based on its material; and the heat absorption per unit weight of injected water is calculated based on the temperature of the injected water.

4. The cooking apparatus according to claim 3, characterized in that, The controller is configured to: When the target baking temperature is greater than the target steaming temperature, after calculating the water injection amount, if the current temperature value of the steaming area exceeds the predetermined first steaming temperature threshold, the water pump is controlled to inject water into the steaming area based on the water injection amount.

5. The cooking apparatus according to claim 3, characterized in that, The controller is configured to: When the target baking temperature is greater than the target steaming temperature, and the target baking temperature is greater than the first baking temperature threshold, Within each predetermined cycle after calculating the water injection volume, the water inlet pump is controlled to inject water into the steaming area based on the water injection volume.

6. The cooking apparatus according to claim 1, characterized in that, The controller is configured to: If the target steaming temperature is greater than the target baking temperature, during the preheating process, the steam generator is activated first to heat the steaming area, and the current temperature value of the steaming area is obtained in real time through the first temperature sensor. When the current temperature value of the steaming area reaches the predetermined steaming preheating temperature threshold, the steam generator is turned off and the first heating element is turned on to heat the baking area.

7. The cooking apparatus according to claim 1 or 6, characterized in that, The cooking equipment also includes: A second temperature sensor is disposed inside the cooking cavity to detect the temperature value of the baking area; The controller is configured to: If the target baking temperature is greater than the target steaming temperature, during the preheating process, the first heating element is activated first to heat the baking area, and the current temperature value of the baking area is obtained in real time through the second temperature sensor; When the current temperature value of the baking zone reaches the predetermined baking preheating temperature threshold, the current temperature value of the steaming zone is obtained through the first temperature sensor. When the current temperature value of the steaming area is less than the predetermined steaming preheating temperature threshold, the first heating element is turned off and the steam generator is started to heat the steaming area. When the current temperature value of the steaming area is between the steaming preheating temperature threshold and the first steaming temperature threshold, steam baking temperature control is performed; When the current temperature value of the steaming area is greater than the first steaming temperature threshold, the water injection volume is calculated based on the temperature difference between the current temperature value of the steaming area and the target steaming temperature, and the water pump is controlled to inject water into the steaming area based on the water injection volume.

8. The cooking apparatus according to claim 1, wherein, The cooking equipment also includes: A second temperature sensor is disposed inside the cooking cavity to detect the temperature value of the baking area; The controller is configured to: After preheating is completed, the current temperature values ​​of the steaming area and the baking area are obtained by the first temperature sensor and the second temperature sensor, respectively. The target duty cycle of the temperature regulating device is determined based on the current temperature value of the steaming zone, the current temperature value of the baking zone, the target steaming temperature, and the target baking temperature, and the temperature regulating device is controlled to operate at the target duty cycle for steaming and baking temperature control; the temperature regulating device includes one or more of the heating device and the water inlet pump.

9. The cooking apparatus according to claim 1, wherein, The cooking equipment also includes: A container is disposed within the cooking cavity, and a steaming area is defined within the container; A second heating element is disposed inside the cooking cavity for heating the baking area, and when the second heating element heats the baking area, the heat is radiated to the box body; The controller is configured to: When the first heating element is in the open state and the current temperature value of the steaming area is less than the target steaming temperature, the second heating element is controlled to open and cooperate with the first heating element to heat the baking area.

10. A cooking apparatus, characterized by, include: The box body has an internal cooking cavity, which includes a baking area and a steaming area. A heating device, disposed within the cooking cavity, includes: A first heating element, the first heating element being used to heat the baking area; A steam generator is used to heat the clean water pumped in by the inlet water pump to provide steam for the steaming area, so as to heat the steaming area; A second temperature sensor is disposed inside the cooking cavity to detect the temperature value of the baking area; A water pump, located inside the cooking cavity, is used to supply water to the steaming area; The controller is configured as follows: After cooking begins, the first heating element and the steam generator are controlled to preheat the baking area and the steaming area, respectively. After preheating, steam-bake temperature control is performed so that the baking area and the steaming area cook the food at the predetermined target baking temperature and target steaming temperature, respectively. If the target baking temperature is greater than the target steaming temperature, and the target baking temperature is greater than the first baking temperature threshold, the current temperature value of the baking area is obtained in real time through the second temperature sensor; During each predetermined cycle of the cooking process, the water injection amount is calculated based on the current temperature value of the baking zone, and the water injection pump is controlled to inject water into the steaming zone based on the water injection amount.

Images