Steaming oven and control method thereof

Abstract

The invention belongs to the household appliance technology, and provides a steaming oven and a control method thereof, and the steaming oven, the steaming oven comprises a box body, a heating assembly, a steam generator and a control unit, the control unit is configured to execute a first cooking task, the first cooking task is configured to control the heating assembly and the steam generator to operate, and the first cooking task is configured to execute a second cooking task; the temperature in the cooking cavity is the first temperature, and the humidity in the cooking cavity is the first humidity; after a first preset duration, a second cooking task is executed, and the second cooking task is configured to control the heating assembly and the steam generator to operate, so that the temperature in the cooking cavity is at a second temperature, and the humidity in the cooking cavity is at a second humidity; after a second preset duration, a third cooking task is executed, and the third cooking task is configured to control the heating assembly to operate so that the temperature in the cooking cavity can be at a third temperature. Through the method, the content of resistant starch in food materials can be effectively increased.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of household appliances, and more specifically, to a steam oven and a control method thereof. Background Art

[0002] With the development of social economy, the dietary health problems of the people have become increasingly prominent, and chronic diseases such as diabetes caused by improper diet have attracted great attention from consumers and society.

[0003] Starch-rich foods (such as rice and potatoes) are important staple foods for people. When cooked, these foods hydrolyze into glucose quickly, resulting in high digestion and absorption rates, making them particularly prone to causing blood sugar spikes.

[0004] Starch is categorized by digestibility into rapidly digestible starch, slowly digestible starch, and resistant starch. Resistant starch, also known as indigestible starch, is not absorbed in the small intestine and does not cause a rise in blood sugar. Therefore, increasing the resistant starch content in ingredients during cooking, thereby mitigating the risk of hyperglycemia, has become a pressing issue. Summary of the Invention

[0005] The embodiments of the present application provide a steam oven and a control method thereof, so as to increase the resistant starch in food.

[0006] In a first aspect, an embodiment of the present application provides a steam oven, comprising: a housing having a cooking cavity;

[0007] a heating component, configured to heat food in the cooking cavity;

[0008] a steam generator configured to provide a flow of steam to the cooking cavity;

[0009] a temperature sensor configured to detect the temperature in the cooking cavity;

[0010] a humidity sensor configured to detect humidity in the cooking cavity;

[0011] a control unit connected to the heating assembly, the steam generator, the temperature sensor, and the humidity sensor, the control unit being configured to:

[0012] executing a first cooking task, wherein the first cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from starch in the food;

[0013] After a first preset time, executing a second cooking task, wherein the second cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least a portion of starch in the food into resistant starch;

[0014] After the second preset time, a third cooking task is performed, wherein the third cooking task is configured to control the heating component to operate so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to stabilize and mature the resistant starch.

[0015] In some embodiments, the control unit is configured to:

[0016] When executing a first cooking task, when it is determined that the temperature in the cooking cavity is at a first temperature based on the temperature reported by the temperature sensor, stopping the operation of the heating component;

[0017] and / or;

[0018] When it is determined based on the humidity reported by the temperature and humidity sensor that the humidity in the cooking cavity is at a first humidity, the steam generator is stopped.

[0019] In some embodiments, after stopping the operation of the heating assembly and / or the steam generator, the temperature and / or humidity in the cooking cavity is detected based on the humidity and / or moisture reported by the temperature sensor and / or the humidity sensor;

[0020] When it is determined that the temperature in the cooking cavity drops to a target temperature, re-controlling the heating component to operate; the target temperature is determined based on the first temperature;

[0021] and / or,

[0022] When it is determined that the humidity in the cooking cavity decreases to a target humidity, the steam generator is controlled to operate again; the target humidity is determined based on the first humidity.

[0023] In some embodiments, the control unit is configured to:

[0024] When the second cooking task begins to be performed, stopping the operation of the heating component;

[0025] or,

[0026] During the execution of the third cooking task, the steam generator is stopped.

[0027] In some embodiments, the steam oven further comprises: a fan and an air duct cavity, wherein the fan is disposed in the air duct cavity, and the air duct cavity is communicated with the cooking cavity, and the control unit is configured to:

[0028] When the third cooking task is performed, the fan is operated to discharge the steam in the cooking cavity to the outside through the air duct cavity.

[0029] In some embodiments, the control unit is configured to:

[0030] Before executing the first cooking task, a preheating task is executed, wherein the preheating task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a fourth temperature and the humidity in the cooking cavity is at a fourth humidity.

[0031] In some embodiments, the control unit is configured to:

[0032] Get cooking time;

[0033] According to the cooking time, the first preset time, the second preset time and the third preset time are determined; the sum of the first preset time and the second preset time is less than or equal to the third preset time.

[0034] In some embodiments, the control unit is configured to:

[0035] determining a first temperature and a first humidity from a first temperature range and a first humidity range according to the first preset time period;

[0036] determining a second temperature and a second humidity from a second temperature range and a second humidity range according to the second preset time period;

[0037] A third temperature and a third humidity are determined from a third temperature range and a third humidity range according to the third preset time period.

[0038] In some embodiments, the control unit is configured to:

[0039] Get cooking temperature;

[0040] The third temperature is determined according to the cooking temperature.

[0041] In a second aspect, an embodiment of the present application provides a method for controlling a steam oven, the steam oven comprising:

[0042] A box body, wherein the box body is configured with a cooking cavity;

[0043] a heating component, configured to heat food in the cooking cavity;

[0044] a steam generator configured to provide a flow of steam to the cooking cavity;

[0045] a temperature sensor configured to detect the temperature in the cooking cavity;

[0046] a humidity sensor configured to detect humidity in the cooking cavity;

[0047] The method comprises:

[0048] executing a first cooking task, wherein the first cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from starch in the food;

[0049] After a first preset time, executing a second cooking task, wherein the second cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least a portion of starch in the food into resistant starch;

[0050] After the second preset time, a third cooking task is performed, wherein the third cooking task is configured to control the heating component to operate so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to stabilize and mature the resistant starch.

[0051] In a third aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor (control unit), they are used to implement the first aspect above and / or various possible implementation methods of the first aspect.

[0052] In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementation methods of the first aspect.

[0053] The steam oven and control method thereof provided in the embodiment of the present application can provide a good environment for the conversion of starch in the ingredients during the cooking process by executing the first cooking task, the second cooking task and the third cooking task, so that the starch in the ingredients can be converted into slowly digestible starch and resistant starch as much as possible, thereby reducing the impact of starch on the user's blood sugar and improving the user's physical health. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0055] Figure 1 A schematic structural diagram of a steam oven is provided for this application;

[0056] Figure 2 A schematic structural diagram of another steam oven provided in this application;

[0057] Figure 3 A flow chart of a method for controlling a steam oven is provided for this application;

[0058] Figure 4 A flow chart of another method for controlling a steam oven is provided for this application;

[0059] Figure 5-Figure 8 A schematic diagram of a specific steam oven control method provided in this application;

[0060] Figure 9 A schematic structural diagram of a control device for a steam oven provided in this application;

[0061] Figure 10 This is a schematic structural diagram of another control device for a steam oven provided in this application.

[0062] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0063] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0064] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0065] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0068] As mentioned above, staple food ingredients are cooked and then eaten. They are hydrolyzed into glucose in the user's body at a fast rate, and have a high digestion and absorption rate. They are particularly likely to cause the user's blood sugar to rise, which is not conducive to the user's health.

[0069] In view of this, an embodiment of the present application provides a steam oven and a control method thereof, which modifies part of the starch in high-starch ingredients into slowly digestible starch and resistant starch by changing or controlling the cooking humidity, temperature, and cooking time, thereby slowing down the sugar absorption rate after consumption by the user, improving blood sugar regulation, and enhancing the user's health.

[0070] The steam oven provided in this application can be a common steam oven or a microwave steam oven, etc. This embodiment is not limited here. Among them, the steam oven can be a stand-alone steam oven, or the steam oven can be a built-in steam oven.

[0071] Figure 1 This is a schematic diagram of the structure of the steam oven provided in the embodiment of the present application. Figure 2 This is a schematic diagram of the structure of the steam oven provided in an embodiment of the present application with part of the outer shell removed.

[0072] In some embodiments, the steam oven includes a cabinet 100 , wherein the cabinet 100 is configured with a cooking cavity for cooking food.

[0073] In some embodiments, the box 100 includes a shell 110. The shell 110 can play a role of protection and aesthetics.

[0074] The housing 110 has a receiving cavity, which is used to provide space for installing other components.

[0075] In some embodiments, the steam oven includes an inner container 120. The inner container 120 is used to place food.

[0076] The inner pot 120 is located in the accommodating cavity and is configured with a cooking cavity.

[0077] In some embodiments of the present application, the steam oven includes a door body 200 .

[0078] The door body 200 is rotatably connected to the housing 110. The door body 200 rotates relative to the housing 110 to open or close the accommodating cavity.

[0079] In some embodiments, the door body 200 is an automatic door body, thereby being able to provide customers with a more intelligent product experience.

[0080] In some embodiments, the steam oven includes a heating system for heating food in the cooking cavity.

[0081] In some embodiments, the heating system includes a heating assembly (eg, a heating tube).

[0082] The heating component can be inserted into the inner container, located at the bottom of the inner container, or located at the back of the inner container. The embodiment of the present application does not limit the position of the heating component.

[0083] In some embodiments, the steam oven includes a shelf 300, which is disposed in the cooking cavity and on the side wall of the inner container.

[0084] In some embodiments, the oven includes a controller.

[0085] In some embodiments, the controller may be located between the liner 120 and the outer shell 110 .

[0086] In some embodiments, the steam oven includes a steam system 400 , which can be used to deliver steam into the inner container 120 .

[0087] The steam system 400 is located in the accommodating cavity.

[0088] See also Figure 2 As shown, in some embodiments, the steam system 400 includes a water box 410. The water box 410 is used to hold liquid, such as water or descaling agent.

[0089] In some embodiments, the water box 410 may be located on one side of the inner liner 120 , for example, on the top of the inner liner 120 .

[0090] In some embodiments, a top plate is provided on the top of the inner tank 120 , the top plate is connected to the outer shell 110 , and the water box 410 is connected to the top plate.

[0091] In some embodiments, the steam system 400 includes a steam generator 420 . The steam generator 420 is used to generate steam and deliver the steam to the inner container 120 .

[0092] In some embodiments, the steam generator 420 may be located on one side of the inner container 120 , for example, on the back of the inner container 120 .

[0093] In some embodiments, a back plate is provided on the back of the inner container 120 , the back plate is connected to the outer shell 110 , and the steam generator 420 is connected to the back plate.

[0094] In some embodiments, the steam system 400 includes a water inlet pump, which is in communication with the water box 410 and the steam generator 420 . The water inlet pump is configured to deliver water in the water box 410 to the steam generator 420 .

[0095] In some embodiments, the steam system 400 includes a steam separator, which is in communication with the steam generator 420 and the liner 120 .

[0096] The steam generated by the steam generator 420 enters the water vapor separator, which can separate water and steam, allowing only dry steam to enter the inner tank 120.

[0097] In some embodiments, the steam system 400 includes a return water pump, which is connected to the water box 410 and the steam generator 420. The return water pump is used to recycle the remaining water in the steam generator 420 back to the water box 410. This can effectively prevent water from being retained in the pipeline for a long time and causing bacterial growth.

[0098] In some embodiments, the steam oven includes an air duct structure 500. The air duct structure 500 can be used to discharge steam in the cooking cavity to the outside of the steam oven.

[0099] The air duct structure 500 is located in the accommodating cavity.

[0100] In some embodiments, the air duct structure 500 is configured with an air duct cavity that communicates with the exterior of the housing 110 .

[0101] The air duct cavity is connected to the cooking cavity, and the steam in the cooking cavity flows to the outside of the steam oven through the air duct cavity.

[0102] In some embodiments, a fan is provided in the air duct cavity. When the fan is in operation, it draws out the steam in the cooking cavity and discharges it to the outside of the oven through the air duct cavity.

[0103] Figure 3 This is a flow chart of a method for controlling a steam oven provided in an embodiment of the present application. The execution subject of the embodiment of the present application may be a steam oven or a control unit of the steam oven, such as Figure 3 As shown, the control method includes the following steps:

[0104] S301. Execute a first cooking task, where the first cooking task is configured to control the operation of the heating component and the steam generator so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from starch in the food.

[0105] In some embodiments, the food is a starch-rich food, such as cereals, noodles, root vegetables, etc.

[0106] In some embodiments, upon receiving a user's selection of a target cooking mode, the control unit may execute the method provided in the embodiments of the present application. Upon receiving a user's selection of a non-target cooking mode, the control unit may execute a normal cooking process. The target cooking mode is designed to convert as much starch as possible into resistant starch. For example, the target cooking mode may be an anti-sugar (cooking) mode, a blood sugar reduction (cooking) mode, or the like.

[0107] In some embodiments, the user can select the target cooking mode in the control panel of the steam oven, or the user can remotely select the target cooking mode in the steam oven through a terminal device, or the user can remotely select the target cooking mode in the steam oven through voice control. This embodiment of the present application is not limited to this.

[0108] In some embodiments, the control unit executes the first cooking task after receiving the user's selection of the target cooking mode and determining that the user has put in the ingredients.

[0109] For example, when executing the first cooking task, the control unit may control the heating element in the steam oven to start operating to increase the temperature in the cooking cavity, and control the steam generator in the steam oven to start operating to increase the humidity in the cooking cavity. Optionally, both the heating element and the steam generator may operate at corresponding preset powers.

[0110] In some embodiments, after the heating assembly and the steam generator start operating, the control unit may detect the temperature and humidity in the cooking cavity through the temperature reported by the temperature sensor and the humidity reported by the humidity sensor.

[0111] In some embodiments, the control unit may control the heating assembly and steam generator to stop operating when the temperature in the cooking chamber is determined to be at a first temperature based on the temperature reported by the temperature sensor, and when the humidity in the cooking chamber is determined to be at a first humidity based on the humidity reported by the humidity sensor. When the humidity and temperature in the cooking chamber are at the first humidity and first temperature, the starch granules in the food are heated, begin to absorb water and expand, and the starch begins to gelatinize. Optionally, the process of the control unit performing the first cooking task may also be referred to as a starch water absorption process.

[0112] For example, the first temperature can be any temperature within the first temperature range, e.g., the first temperature range can be 45°C-140°C, and the first temperature can be 60°C. The first humidity can be any humidity within the first humidity range, e.g., the first humidity range can be 20%-80%, and the first humidity can be 30%. The specific values ​​of the first temperature and the first humidity are not limited in this embodiment of the application.

[0113] Optionally, the control unit may use the default first temperature and first humidity when executing the first cooking task.

[0114] In some embodiments, when the control unit determines that the temperature in the cooking cavity is at a first temperature based on the temperature reported by the temperature sensor, the heating component can be controlled to stop running; or, when the control unit determines that the humidity in the cooking cavity is at a first humidity based on the humidity reported by the humidity sensor, the steam generator can be controlled to stop running.

[0115] In some embodiments, after stopping the operation of the heating component and / or the steam generator, the control unit continues to detect the temperature and / or humidity in the cooking cavity based on the humidity and / or humidity reported by the temperature sensor and / or the humidity sensor.

[0116] When it is determined that the temperature in the cooking chamber has dropped to a target temperature, the heating component is re-controlled to operate, and / or when it is determined that the humidity in the cooking chamber has dropped to a target humidity, the steam generator is re-controlled to operate, so as to maintain the temperature and humidity in the cooking chamber at a first temperature and a first humidity. The target temperature is determined based on the first temperature and is less than the first temperature. For example, the target temperature can be 90% of the first temperature, or 85% of the first temperature, etc. The target humidity is determined based on the first humidity and is less than the first humidity. For example, the target humidity can be 90% of the first humidity, or 85% of the first humidity, etc. The embodiments of this application do not limit the specific values ​​of the target temperature and target humidity.

[0117] The control unit can repeatedly execute the above-mentioned steps of stopping the operation of the heating component when the temperature in the cooking cavity is at the first temperature and / or stopping the operation of the steam generator when the humidity in the cooking cavity is at the first humidity within a first preset time period, and re-controlling the operation of the heating component when it is determined that the temperature in the cooking cavity drops to the target temperature, and / or re-controlling the operation of the steam generator when it is determined that the humidity in the cooking cavity drops to the target humidity, so as to maintain the humidity in the cooking cavity at the first humidity and the first temperature, so that the starch granules in the food can be well heated and absorb water.

[0118] After the first preset time period, the control unit ends executing the first cooking task and starts executing the second cooking task shown in S302.

[0119] S302. After a first preset time, perform a second cooking task, wherein the second cooking task is configured to control the operation of the heating component and the steam generator so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least part of the starch in the food into resistant starch.

[0120] In some embodiments, while executing the second cooking task, the control unit controls the heating assembly and the steam generator to maintain the temperature and humidity in the cooking chamber at a second temperature and a second humidity. When the humidity and temperature in the cooking chamber are maintained at the second humidity and the second temperature, starch denaturation begins, with some of the starch being converted into slowly digestible starch and resistant starch. Optionally, the process of the control unit executing the second cooking task may also be referred to as a starch denaturation process.

[0121] For example, the second temperature can be any temperature within the second temperature range, for example, the second temperature range can be 45°C-140°C, and the second temperature can be 60°C. The second humidity can be any humidity within the second humidity range, for example, the second humidity range can be 60%-80%, and the second humidity can be 60%. The specific values ​​of the second temperature and the second humidity are not limited in this embodiment of the application.

[0122] In some embodiments, during the execution of the second cooking task, the control unit determines that the temperature in the cooking cavity is at the second temperature based on the temperature reported by the temperature sensor, and determines that the humidity in the cooking cavity is at the second humidity based on the humidity reported by the humidity sensor, and the heating component and the steam generator can be controlled to stop running.

[0123] In some embodiments, when the control unit determines that the temperature in the cooking cavity is at a second temperature based on the temperature reported by the temperature sensor, the heating component can be controlled to stop running; or, when the control unit determines that the humidity in the cooking cavity is at a second humidity based on the humidity reported by the humidity sensor, the steam generator can be controlled to stop running.

[0124] In some embodiments, after stopping the operation of the heating component and / or the steam generator, the control unit continues to detect the temperature and / or humidity in the cooking cavity based on the humidity and / or humidity reported by the temperature sensor and / or the humidity sensor.

[0125] When it is determined that the temperature in the cooking chamber has dropped to a target temperature corresponding to the second cooking stage, the heating component is re-controlled to operate, and / or when it is determined that the humidity in the cooking chamber has dropped to a target humidity corresponding to the second cooking stage, the steam generator is re-controlled to operate, so as to maintain the temperature and humidity in the cooking chamber at the second temperature and the second humidity. The target temperature is determined based on the second temperature and is less than the second temperature. For example, the target temperature can be 90% of the second temperature, or 85% of the second temperature, etc. The target humidity is determined based on the second humidity and is less than the second humidity. For example, the target humidity can be 90% of the second humidity, or 85% of the second humidity, etc. The specific values ​​of the target temperature and the target humidity are not limited in this embodiment of the present application.

[0126] In some embodiments, the second temperature is less than or equal to the first temperature. Therefore, when the control unit starts to execute the second cooking task, the temperature in the cooking cavity will usually be greater than or equal to the second temperature. Therefore, in order to reduce the energy consumption of the steam oven, the control unit can turn off the heating component when starting to execute the second cooking task.

[0127] It should be understood that the control unit can repeatedly stop and operate the heating component and the steam generator based on the temperature and humidity reported by the temperature sensor and the humidity sensor during the execution of the second cooking task, so that the temperature and humidity in the cooking cavity are maintained at the second temperature and second humidity during the execution of the second cooking task.

[0128] After the second preset time period, the control unit ends executing the second cooking task and starts executing the second cooking task shown in S303.

[0129] S303. After a second preset time, executing a third cooking task, wherein the third cooking task is configured to control the operation of the heating component so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to stabilize and mature the resistant starch.

[0130] In some embodiments, after the second cooking task, the starch in the food that can be converted into resistant starch has been basically completed. The control unit can now perform the third cooking task to qualitatively characterize the resistant starch in the food, so that the properties no longer change, and at the same time mature the starch, thereby maturing the food.

[0131] Since the conversion of resistant starch is basically completed when the third cooking task is executed, the humidity in the cooking cavity is no longer a key issue that needs to be paid attention to during the cooking process. Therefore, when the third cooking task begins, the control unit can stop running the steam generator and does not detect the humidity in the cooking cavity. That is, the humidity is not controlled during the execution of the third cooking task.

[0132] For example, the third temperature may be any temperature within the third temperature range, for example, the third temperature range may be 140° C.-270° C., and the third temperature may be 200° C. The embodiment of the present application does not limit the specific values ​​of the third temperature and the third humidity.

[0133] In some embodiments, during the execution of the third cooking task, the control unit determines that the temperature in the cooking cavity is at a third temperature based on the temperature reported by the temperature sensor, and controls the heating component to stop operating.

[0134] In some embodiments, after stopping the operation of the heating component, the control unit continues to detect the temperature in the cooking cavity according to the humidity reported by the temperature sensor.

[0135] When it is determined that the temperature in the cooking chamber has dropped to a target temperature corresponding to the third cooking stage, the heating assembly is re-controlled to maintain the temperature and humidity in the cooking chamber at a third temperature. The target temperature is determined based on the third temperature and is less than the third temperature. For example, the target temperature may be 90% of the third temperature, or 85% of the third temperature. The specific value of the target temperature is not limited in this embodiment of the present application.

[0136] It should be understood that, during the execution of the third cooking task, the control unit may repeatedly stop and start the heating component based on the temperature reported by the temperature sensor, so that the temperature in the cooking chamber is maintained at the third temperature during the execution of the third cooking task. After the third preset time period, the execution of the third cooking task ends, and the current cooking process ends.

[0137] The control method of the steam oven provided in the embodiment of the present application can provide a good environment for the conversion of starch in the ingredients during the cooking process by executing the first cooking task, the second cooking task and the third cooking task, so that the starch in the ingredients can be converted into slowly digestible starch and resistant starch as much as possible (i.e., increase their content), thereby reducing the impact of starch on the user's blood sugar and improving the user's physical health.

[0138] exist Figure 3 Based on the embodiment shown, the following Figure 4 The control method of the steam oven provided in the embodiment of the present application is further explained.

[0139] Figure 4 Schematic diagram of the process of the control method of the steam oven provided in the embodiment of the present application Figure 2 ,like Figure 4 Shown, including:

[0140] S401: Acquire cooking mode.

[0141] In some embodiments, if the cooking mode selected by the user is a target cooking mode, the control unit may execute the control method provided in the embodiment of the present application; if the cooking mode selected by the user is a non-target cooking mode, the conventional cooking process is executed.

[0142] S402: Obtain cooking time and / or target cooking temperature.

[0143] In some embodiments, the cooking time may refer to the duration of the entire cooking process. The target cooking temperature may be the temperature that needs to be maintained in the cooking cavity during the third cooking task, that is, the third temperature mentioned above.

[0144] The control unit can obtain the cooking time and / or target cooking temperature input by the user through the control panel of the steam oven, etc. By inputting the cooking time, the user can flexibly adjust the cooking time. By inputting the target cooking task, the user can steam and bake the ingredients to the desired state. For example, if the user wants the ingredients to be more crispy, the target cooking temperature can be set higher.

[0145] In some embodiments, the cooking time and / or target cooking temperature may also adopt a preset temperature and / or preset time, that is, when the user does not input the cooking time and / or target cooking temperature, the control unit may use the preset time as the cooking time, and / or, use the preset temperature as the target cooking temperature.

[0146] That is, S402 is an optional step.

[0147] S403: Determine a first preset time, a second preset time, and a third preset time according to the cooking time.

[0148] In some embodiments, after determining the cooking time, the control unit can use a preset algorithm or model to allocate the cooking time to determine the execution time corresponding to the cooking tasks in subsequent stages, that is, the first preset time, the second preset time and the third preset time.

[0149] In some embodiments, the sum of the first preset duration and the second preset duration is less than or equal to the third preset duration.

[0150] Optionally, when the control unit executes subsequent cooking tasks, the corresponding execution duration can also be adjusted according to the current state of the ingredients.

[0151] S404: Execute a preheating task.

[0152] In some embodiments, after the control unit determines the first preset time, the second preset time, and the third preset time, it can start executing the preheating task to increase the temperature and humidity in the cooking cavity to a fourth temperature and a fourth humidity to better cook the ingredients.

[0153] In some embodiments, during the preheating task, the control unit may control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity reaches a fourth temperature and the humidity in the cooking cavity reaches a fourth humidity.

[0154] For example, the fourth temperature may be any temperature within the fourth temperature range, e.g., the fourth temperature range may be 45°C-65°C, or the fourth temperature may be 50°C. The fourth humidity may be any humidity within the fourth humidity range, e.g., the fourth humidity range may be 60%-80%, or the fourth humidity may be 60%. The specific values ​​of the fourth temperature and the fourth humidity are not limited in this embodiment of the application.

[0155] In some embodiments, when the preset task is completed, the control unit can preheat the user through the lifting unit of the steam oven to complete the lifting, so that the user can put the food into the steam oven.

[0156] S405: Execute the first cooking task.

[0157] S406: Execute the second cooking task.

[0158] S407: Execute the third cooking task.

[0159] In the embodiment of the present application, the specific implementation method of the steps S405-407 is the same as Figure 3 The specific implementation methods of steps S301-S303 are similar and will not be repeated here.

[0160] In some embodiments, since the primary function of the third cooking task is to stabilize and mature starch, to further enhance the steaming and toasting effect of the ingredients, the control unit may also control the fan to begin operating during the execution of the third cooking task, discharging steam from the cooking cavity to the exterior of the cabinet through the air duct cavity where the fan is located, thereby reducing the humidity within the cooking cavity and thereby enhancing the toasting effect of the ingredients. Optionally, the control unit may operate the fan throughout the entire execution of the third cooking task, or may control the fan to operate for a preset duration. This embodiment of the present application does not impose any restrictions on the duration of the fan operation.

[0161] Based on the above embodiments, Figure 5-Figure 8 , the control method of the steam oven provided in this application is introduced with a specific embodiment.

[0162] refer to Figure 5 After the user selects the resistant sugar steaming mode on the user interface and sets the target cooking temperature and cooking time, the control unit performs a preheating phase, activating the back heating tube and steam generator. This phase ends when the cooking chamber temperature reaches T0 (45-65°C) and the humidity reaches R0 (60-80%). After the user adds the ingredients, the first phase begins, reaching T1 (45-140°C) and R1 (40-80%). When the temperature and humidity reach the preset values, the back heating tube and steam generator stop operating. When the temperature and humidity are ≤10% of the preset values, the back heating tube and steam generator start operating again. During the first phase, starch granules heat up and begin to absorb water and expand, preparing for the next stage of denaturation. If the temperature is too high during this phase, no resistant starch will be produced.

[0163] After the first stage, the second stage begins. The rear heating element is turned off, and the steam generator and humidity sensor are activated. When the humidity reaches the preset values ​​(T1 (45°C-140°C) and R1 (60-80%)), the steam generator stops. When the humidity is ≤10% of the preset value, the steam generator starts again. In the second stage, the steam humidity is increased while the humidity and temperature are controlled to create optimal conditions for starch denaturation. Some of the starch will become slowly digestible starch and resistant starch. These slowly digestible starch and resistant starch can lower the user's glycemic index and have a significant impact on chronic conditions such as diabetes.

[0164] After the second stage, the third stage begins. The temperature is fixed at T3 (140-270°C). The back heating pipe and fan are activated, and the humidity sensor and steam generator are turned off. When the temperature reaches the preset value, the back heating pipe stops operating. When the temperature is ≤10% of the preset value, the back heating pipe starts operating again. In the third stage, the starch denaturation is complete, and sufficient heating is achieved to stabilize the starch and mature it.

[0165] refer to Figure 6 and Figure 7 From the first stage to the second stage, the temperature in the cooking chamber gradually decreases and the humidity gradually increases. From the second stage to the third stage, the temperature in the cooking chamber gradually increases and the humidity gradually decreases. Figure 8 It can be seen that under appropriate temperature conditions, the content of converted resistant starch per gram of starch can be maintained at a high level.

[0166] Figure 9 This is a structural diagram of a control device 90 for a steam oven provided in an embodiment of the present application, as shown in FIG. Figure 9 As shown, including:

[0167] The first processing module 901 is used to perform a first cooking task, which is configured to control the operation of the heating component and the steam generator so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from the starch in the food.

[0168] The second processing module 902 is used to perform a second cooking task after a first preset time period, and the second cooking task is configured to control the operation of the heating component and the steam generator so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least part of the starch in the food into resistant starch.

[0169] The third processing module 903 is used to perform a third cooking task after a second preset time period, and the third cooking task is configured to control the operation of the heating component so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to qualitatively and mature the resistant starch.

[0170] Optionally, the first processing module 901 is also used to, when executing the first cooking task, stop operating the heating component when it is determined that the temperature in the cooking cavity is at a first temperature based on the temperature reported by the temperature sensor; and / or stop operating the steam generator when it is determined that the humidity in the cooking cavity is at a first humidity based on the humidity reported by the temperature and humidity sensor.

[0171] Optionally, the first processing module 901 is also used to detect the temperature and / or humidity in the cooking cavity after stopping the operation of the heating component and / or the steam generator based on the humidity and / or humidity reported by the temperature sensor and / or the humidity sensor; when it is determined that the temperature in the cooking cavity has dropped to a target temperature, re-control the operation of the heating component; the target temperature is determined based on the first temperature; and / or, when it is determined that the humidity in the cooking cavity has dropped to a target humidity, re-control the operation of the steam generator; the target humidity is determined based on the first humidity.

[0172] Optionally, the second processing module 902 is further configured to stop the heating component when starting to execute the second cooking task.

[0173] Optionally, the third processing module 903 is further configured to stop the steam generator during the execution of the third cooking task.

[0174] Optionally, the third processing module 903 is further configured to operate the fan when executing the third cooking task, so as to discharge the steam flow in the cooking cavity to the outside through the air duct cavity.

[0175] Optional, such as Figure 10 As shown, the control device 90 further includes a preheating module 900 .

[0176] The preheating module 900 is used to perform a preheating task before performing the first cooking task. The preheating task is configured to control the operation of the heating component and the steam generator to make the temperature in the cooking cavity at a fourth temperature and the humidity in the cooking cavity at a fourth humidity.

[0177] Optionally, the preheating module 900 is also used to obtain the cooking time; determine the first preset time, the second preset time and the third preset time based on the cooking time; the sum of the first preset time and the second preset time is less than or equal to the third preset time.

[0178] Optionally, the preheating module 900 is also used to determine the first temperature and the first humidity from the first temperature range and the first humidity range according to the first preset time; determine the second temperature and the second humidity from the second temperature range and the second humidity range according to the second preset time; and determine the third temperature and the third humidity from the third temperature range and the third humidity range according to the third preset time.

[0179] Optionally, the preheating module 900 is further configured to obtain a cooking temperature; and determine the third temperature based on the cooking temperature.

[0180] The control device of the steam oven provided in the embodiment of the present application can execute the control method of the steam oven shown in any of the above embodiments. Its principles and technical effects are similar and will not be repeated here.

[0181] It should be noted that it should be understood that the division of the various modules of the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by processing elements; they can also all be implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. Each module can be a separately established processing element, or it can be integrated into a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called by a processing element of the above device to perform the functions of the above modules. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by the hardware integrated logic circuit in the processor element or by instructions in the form of software.

[0182] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0183] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0184] The readable storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0185] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0186] The division of units is merely a logical functional division; actual implementations may employ alternative divisions, such as combining or integrating multiple units or components into another system, or omitting or disabling certain features. Furthermore, any direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units, either through an interface, electrical, mechanical, or other means.

[0187] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0188] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0189] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of the present invention. The aforementioned storage medium includes various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0190] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0191] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A steam oven, characterized in that: include: A box body, wherein the box body is configured with a cooking cavity; a heating component, configured to heat food in the cooking cavity; a steam generator configured to provide a flow of steam to the cooking cavity; a temperature sensor configured to detect the temperature in the cooking cavity; a humidity sensor configured to detect humidity in the cooking cavity; a control unit connected to the heating assembly, the steam generator, the temperature sensor, and the humidity sensor, the control unit being configured to: executing a first cooking task, wherein the first cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from starch in the food; After a first preset time, executing a second cooking task, wherein the second cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least a portion of starch in the food into resistant starch; After the second preset time, a third cooking task is performed, wherein the third cooking task is configured to control the heating component to operate so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to stabilize and mature the resistant starch.

2. The steam oven according to claim 1, characterized in that: The control unit is configured to: When executing a first cooking task, when it is determined that the temperature in the cooking cavity is at a first temperature based on the temperature reported by the temperature sensor, stopping the operation of the heating component; and / or; When it is determined based on the humidity reported by the temperature and humidity sensor that the humidity in the cooking cavity is at a first humidity, the steam generator is stopped.

3. The steam oven according to claim 2, characterized in that: The control unit is configured to: After stopping the operation of the heating component and / or the steam generator, detecting the temperature and / or humidity in the cooking cavity based on the humidity and / or moisture reported by the temperature sensor and / or the humidity sensor; When it is determined that the temperature in the cooking cavity drops to a target temperature, re-controlling the heating component to operate; the target temperature is determined based on the first temperature; and / or, When it is determined that the humidity in the cooking cavity decreases to a target humidity, the steam generator is controlled to operate again; the target humidity is determined based on the first humidity.

4. The steam oven according to claim 3, characterized in that: The control unit is configured to: When the second cooking task begins to be performed, stopping the operation of the heating component; or, During the execution of the third cooking task, the steam generator is stopped.

5. The steam oven according to claim 4, characterized in that: The steam oven further includes: a fan and an air duct cavity, wherein the fan is disposed in the air duct cavity, and the air duct cavity is communicated with the cooking cavity, and the control unit is configured to: When the third cooking task is performed, the fan is operated to discharge the steam in the cooking cavity to the outside through the air duct cavity.

6. The steam oven according to any one of claims 1 to 5, characterized in that: The control unit is configured to: Before executing the first cooking task, a preheating task is executed, wherein the preheating task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a fourth temperature and the humidity in the cooking cavity is at a fourth humidity.

7. The steam oven according to any one of claims 1 to 5, characterized in that: The control unit is configured to: Get cooking time; According to the cooking time, the first preset time, the second preset time and the third preset time are determined; the sum of the first preset time and the second preset time is less than or equal to the third preset time.

8. The steam oven according to claim 7, characterized in that: The control unit is configured to: determining a first temperature and a first humidity from a first temperature range and a first humidity range according to the first preset time period; determining a second temperature and a second humidity from a second temperature range and a second humidity range according to the second preset time period; A third temperature and a third humidity are determined from a third temperature range and a third humidity range according to the third preset time period.

9. The steam oven according to claim 1, characterized in that: The control unit is configured to: Get cooking temperature; The third temperature is determined according to the cooking temperature.

10. A method for controlling a steam oven, characterized in that: The steam oven comprises: A box body, wherein the box body is configured with a cooking cavity; a heating component, configured to heat food in the cooking cavity; a steam generator configured to provide a flow of steam to the cooking cavity; a temperature sensor configured to detect the temperature in the cooking cavity; a humidity sensor configured to detect humidity in the cooking cavity; The method comprises: executing a first cooking task, wherein the first cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a first temperature and the humidity in the cooking cavity is at a first humidity; the first temperature and the first humidity are used to heat and absorb water from starch in the food; After a first preset time, executing a second cooking task, wherein the second cooking task is configured to control the heating assembly and the steam generator to operate so that the temperature in the cooking cavity is at a second temperature and the humidity in the cooking cavity is at a second humidity; the second temperature and the second humidity are used to convert at least a portion of starch in the food into resistant starch; After the second preset time, a third cooking task is performed, wherein the third cooking task is configured to control the heating component to operate so that the temperature in the cooking cavity is at a third temperature; the third temperature is used to stabilize and mature the resistant starch.

Images