Method of controlling cooking of soup and porridge and cooking appliance

Abstract

The application discloses a control method and a cooking utensil for soup and porridge cooking. The control method comprises the following steps: after cooking is completed and a holding stage is entered, detection of opening and closing of a pot cover is performed; if opening of the pot cover is detected, a cover opening boiling compensation heating stage is entered. According to the control method, after the cooking process of soup and porridge enters the holding stage, small power heating is still performed according to the temperature of a cooking cavity, but the small power heating is insufficient to cause rolling phenomenon. However, if a cover opening action is detected, the cover opening boiling compensation heating stage is entered to perform compensation heating, so that a user can see the expected rolling phenomenon of food materials and consider that the cooking effect of the food materials is good and the food materials can be eaten.

Description

Technical Field

[0001] The present invention relates to the field of cooking utensils, and in particular to a control method for cooking soup or porridge and a cooking utensil. Background Art

[0002] For electric rice cookers, when cooking programs such as porridge, soup, and stew are completed and the cooker enters the keep-warm stage, it will generally only heat up when the temperature of the bottom of the pot is below 80 degrees Celsius, and the heating power is very small, generally 1 / 8 of the main power. If the lid is suddenly opened, the temperature inside the pot will also slowly drop. This results in the food often not rolling after opening the lid, so users will mistakenly think that the food has not been cooked yet, affecting the user experience.

[0003] Therefore, the present application proposes a control method and cooking appliance for soup or porridge cooking to at least partially solve the above problems. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Specific Embodiments section. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the present invention provides a control method for cooking soups and porridges, comprising: after cooking is completed and entering the insulation stage, detecting the opening and closing of the pot lid; if the opening of the pot lid is detected, entering the open-lid boiling compensation heating stage.

[0006] For soups and porridges, after entering the heat preservation stage, low-power heating will still be performed according to the temperature of the cooking chamber, but it will not be enough to cause boiling. The temperature in the pot will drop even more after the lid is opened. According to the control method of the present invention, if the lid opening action is detected, the lid opening boiling compensation heating stage will be entered to perform compensation heating, so that the user can see the expected boiling phenomenon of the ingredients, and think that the ingredients are cooked well and the effect is good, and can be eaten with confidence.

[0007] Preferably, the uncovered boiling compensation heating stage includes:

[0008] Controlling the heating device to heat at a first predetermined power P1; or

[0009] The heating device is controlled to perform segmented heating with different heating powers.

[0010] Therefore, after the lid is opened, compensation heating can be performed at a fixed first predetermined power P1 to make the pot boil, or compensation heating can be performed at different heating powers to make the pot boil.

[0011] Preferably, the first predetermined power P1 is greater than the heating power in the heat preservation stage, or

[0012] The first predetermined power P1 is greater than or equal to 80% of the rated power; or

[0013] The first predetermined power P1 is greater than or equal to 800W.

[0014] Thus, the food in the pot can be brought to a boiling state more quickly after the lid is opened.

[0015] Preferably, the average heating power during the segmented heating process is greater than the heating power during the insulation stage, or

[0016] The average heating power is greater than or equal to 80% of the rated power; or

[0017] The average heating power is greater than or equal to 800W.

[0018] Thus, the food in the pot can be brought to a boiling state more quickly after the lid is opened.

[0019] Preferably, the maximum heating power during the segmented heating process is greater than the heating power during the heat preservation stage, or

[0020] The maximum heating power is greater than or equal to 80% of the rated power; or

[0021] The maximum heating power is greater than or equal to 800W.

[0022] Thus, the food in the pot can be brought to a boiling state more quickly after the lid is opened.

[0023] Preferably, the heating device is an electromagnetic heating device.

[0024] Therefore, the efficiency of electromagnetic heating is higher than that of conventional heating plates, which can enable the pot and the food inside the pot to absorb a lot of heat within a few seconds, heat up quickly, and then achieve rapid boiling of the food after opening the lid.

[0025] Preferably, during the process of detecting the opening and closing of the pot lid, it is determined whether the pot lid is opened for the first time in the insulation stage. If so, the pot enters the lid-opening boiling compensation heating stage; otherwise, the pot does not enter the lid-opening boiling compensation heating stage.

[0026] It is generally believed that the user needs to check whether the ingredients are tumbling and boiling when opening the lid for the first time during the keep-warm stage. Therefore, in order to reduce power consumption, compensatory heating is only performed after the user opens the lid for the first time during the keep-warm stage, so that the ingredients tumble and are considered to be cooked. There is no need to perform compensatory heating after each opening of the lid, because if compensatory heating is performed each time the lid is opened, the ingredients will be overheated, and as the number of times the lid is opened increases, the food will undergo multiple compensatory heating when the lid is opened, resulting in unnecessary heating of soups and porridges. For example, in the porridge cooking process, the rice soup is likely to evaporate excessively, affecting the viscosity, and may even become sticky at the bottom, ultimately affecting the taste; for example, in the soup making process, in addition to the evaporation of the soup affecting the taste, even the ingredients themselves may be overheated, causing the food to become aging, woody, and rotten, especially for ingredients such as yam and chicken, which seriously affect the taste.

[0027] Preferably, after determining that the pot lid is opened for the first time in the heat preservation stage, the detection of the pot lid opening and closing is exited.

[0028] Thus, the control program can be saved, and after it is determined that the pot lid is opened for the first time in the heat preservation stage, there is no need to continue to detect whether the pot lid is opened or closed.

[0029] Preferably, determining whether the pot lid is opened for the first time in the heat preservation stage includes:

[0030] Determine whether the value of the self-locking register indicating the open / close state of the pot lid is increased by 1.

[0031] Typically, a self-locking register is set in the main control chip of the cooking appliance to indicate the lid open / close status. The value of the self-locking register can only increase to 1, ensuring that the compensation heating is only performed once. It can also be understood that after the self-locking register value reaches 1, even if the lid is determined to be open again, the lid-open boiling compensation heating stage will not be entered.

[0032] Preferably, timing starts at the moment of entering the insulation stage. If the lid is opened before the timing duration t0 reaches the first predetermined duration t1, the pot enters the lid-opening boiling compensation heating stage, otherwise, the pot does not enter.

[0033] Therefore, opening the lid within the first predetermined time period t1 is considered to be the time when the user most needs to check whether the ingredients are rolled over and cooked. After exceeding the first predetermined time period t1, it can be understood that the user only needs to open the lid to take out the soup or porridge, so there is no need for compensatory heating. If the user opens the lid to eat after exceeding the predetermined time, it can be understood that the user may want food that is not too hot and has a temperature more suitable for consumption. At this time, if the food is heated to boiling, it will affect the user's eating experience at this time.

[0034] Preferably, the first predetermined time duration t1 satisfies: 5 min ≤ t1 ≤ 15 min.

[0035] Preferably, the heating device is controlled to heat at the first predetermined power P1, or to perform segmented heating at different heating powers, and after continuing for a second predetermined time t2, the lid-open boiling compensation heating stage is exited; or, when it is detected that the pot lid is closed, the lid-open boiling compensation heating stage is exited.

[0036] Therefore, the open-lid boiling compensation heating stage can be exited according to the duration of the compensation heating or the lid closing signal.

[0037] Preferably, if the top temperature of the cooking cavity shows an upward trend within the third predetermined time t3, and the temperature change value is greater than or equal to the first preset temperature value T1, or the top temperature is greater than or equal to the sixth preset temperature value T6,

[0038] Alternatively, according to the cover closing signal detected by the opening and closing detection device,

[0039] Exit the uncovered boiling compensation heating stage.

[0040] Therefore, if the top temperature of the cooking cavity shows an upward trend within the third predetermined time t3, and the temperature change value is greater than or equal to the first preset temperature value T1, it means that the food in the pot has boiled and the lid has been closed, or the top temperature is greater than, for example, 95°C (the sixth preset temperature value T6 is usually set to 3-5°C lower than the boiling temperature), or a lid closing signal is detected, and the lid-opening boiling compensation heating stage can be exited.

[0041] Preferably, detecting whether the pot lid is opened includes:

[0042] Determining whether the pot lid is opened based on the top temperature or temperature change of the cooking cavity, and / or

[0043] Whether the pot lid is opened is determined based on a signal detected by a pot lid opening and closing detection device.

[0044] Preferably, when judging whether the lid is opened according to the top temperature,

[0045] When the top temperature shows a downward trend within a fourth predetermined time period t4 and the temperature change value is greater than or equal to the second preset temperature value T2, or the top temperature is lower than a fifth preset temperature value T5, it is determined that the pot lid is opened.

[0046] For example, if the top temperature drops by 15 AD values ​​within 30 seconds, or the top temperature is lower than 85° C., it is determined that the pot lid is opened.

[0047] Preferably, it also includes:

[0048] Detection of abnormal heating: Determine whether abnormal heating occurs based on the top temperature of the cooking cavity and / or the temperature of the pot body. If so, control the heating device to stop heating and / or issue an alarm.

[0049] In this way, the compensated boiling heating in the closed state and the abnormal situation that the compensated boiling heating time exceeds the predetermined time (for example, 6s) when the lid is opened can be avoided, thereby preventing porridge, soup and stew ingredients from drying out and affecting the taste.

[0050] Preferably, when the top temperature shows an upward trend within a fifth predetermined time period t5, and the temperature change value is greater than or equal to a third preset temperature value T3, it is determined that a heating abnormality occurs; and / or

[0051] When the temperature of the pot body shows an upward trend within the sixth predetermined time period t6 and the temperature change value is greater than or equal to the fourth preset temperature value T4, it is determined that heating abnormality occurs.

[0052] It is understood that during the heat preservation phase, if the lid is detected to be open and heating compensation is performed after the lid is closed, the presence of abnormal heating with the lid closed can be determined by changes in the top and bottom temperatures of the cooking cavity, or the pot body temperature. This is repeated heating with the lid closed, because changes in both the top and bottom temperatures are significant after the lid is closed. Of course, if the lid is detected to be open and heating compensation is performed while the lid is kept open, the change in the top temperature is not significant. Therefore, the presence of abnormal heating can be determined solely by changes in the bottom temperature of the cooking cavity or the pot body temperature.

[0053] Preferably, the heating anomaly is detected when entering the uncovered boiling compensation heating stage.

[0054] In this way, it is possible to promptly determine whether a heating abnormality occurs.

[0055] Preferably, after the lid-open boiling compensation heating stage is completed, the heating device is controlled to continue heating according to the temperature of the cooking cavity and / or the temperature of the pot body with the heating power of the insulation stage.

[0056] In this way, the food can continue to be kept warm.

[0057] Another aspect of the present invention provides a cooking utensil, comprising:

[0058] a temperature detection device for detecting the temperature of the top of the cooking cavity and the temperature of the pot body of the cooking utensil, and a heating device for heating the cooking cavity; and

[0059] A control device, wherein the control device is signal-connected to the temperature detection device and the heating device,

[0060] Wherein, the control device controls the cooking appliance to execute the steps of the method described in any of the above embodiments.

[0061] For soups and porridges, after entering the heat preservation stage, low-power heating will still be performed according to the temperature of the cooking chamber, but it will not be enough to cause boiling. The temperature in the pot will drop even more after the lid is opened. According to the control method of the present invention, if the lid opening action is detected, the lid opening boiling compensation heating stage will be entered to perform compensation heating, so that the user can see the expected boiling phenomenon of the ingredients, and think that the ingredients are cooked well and the effect is good, and can be eaten with confidence. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] The following drawings of the embodiments of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0063] Figure 1 is a flow chart of a method for controlling soup or porridge cooking according to an exemplary embodiment;

[0064] Figure 2 is a flow chart of a method for controlling soup or porridge cooking according to an exemplary embodiment;

[0065] Figure 3 The figure is a flow chart of a method for controlling soup or porridge cooking according to an exemplary embodiment. DETAILED DESCRIPTION

[0066] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other examples, certain technical features well known in the art are not described to avoid confusion with the embodiments of the present invention.

[0067] To provide a thorough understanding of the embodiments of the present invention, a detailed description will be provided in the following description. It should be understood that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described below in detail, but other embodiments of the present invention are possible beyond these detailed descriptions.

[0068] The present invention provides a cooking utensil, which can be an electric rice cooker or other electric heating appliances. In addition, the cooking utensil can also have other functions such as cooking porridge and making soup in addition to the function of cooking rice.

[0069] The cooking utensil involved in this embodiment can adopt various structures. For example, in one embodiment, the cooking utensil includes an induction cooker and a pot body for the induction cooker, and the pot body generally includes a pot body and a pot lid. As another example, the cooking utensil involved in this embodiment generally includes a pot body and a lid body. The pot body can be in the shape of a generally rounded rectangular parallelepiped, a generally cylindrical shape, or any other suitable shape. An inner pot of a generally cylindrical shape or any other suitable shape is provided in the pot body. The inner pot can be freely placed in or removed from the inner pot storage portion of the pot body to facilitate cleaning of the inner pot. The inner pot is used to store food to be cooked, such as rice, soup, etc. The top of the inner pot has a top opening. The user can store food to be cooked in the inner pot through the top opening, or remove cooked food from the inner pot through the top opening.

[0070] The shape of the lid generally corresponds to that of the pot body. For example, the lid can be a rectangular parallelepiped with rounded corners. The lid is disposed on the pot body in an openable and closable manner, used to cover the entire top of the pot body, or at least the inner pot of the pot body. Specifically, in this embodiment, the lid can be pivotally disposed above the pot body, for example, by means of a hinge, between a fully open position and a closed position. When the lid is closed on the pot body, a cooking space is formed between the lid and the pot body (specifically, the inner pot of the pot body).

[0071] In this embodiment, the cover may include a top cover, an inner lining, and a removable cover. The inner lining is relatively strong and provides support. Functional components such as sensors and pressure control elements can be integrated into the inner lining, maintaining a compact structure for the cooking appliance. The top cover covers the outer side of the inner lining, protecting it and the components mounted thereon while also enhancing the overall aesthetics of the cover.

[0072] The cooking appliance of this embodiment is also equipped with a heating device. The heating device is located within the pot body and can heat the bottom and / or sides of the inner pot. The heating device can be an electric heating tube or an induction heating device such as an electromagnetic coil. In configurations where the cooking appliance includes a detachable base, the heating device can also be located within the base.

[0073] The cooking appliance of the present invention is also equipped with a top temperature sensor and a bottom temperature sensor for real-time detection of the temperature of the cooking space (cooking cavity). The top temperature sensor is typically located on the lid, while the bottom temperature sensor can be located inside the pot, in direct contact with the inner pot. The temperature sensor can be a temperature probe. The temperature probe can be a thermistor, such as an NTC thermistor or a PTC thermistor. The temperature sensor can be connected to the control device of the cooking appliance (e.g., a main control chip) to sense the temperature of the cooking space and feed the sensed temperature signal back to the main control chip, thereby enabling the main control chip to more accurately control the cooking process based on the temperature signal. In addition, the cooking appliance may also include a power supply board to power the control device, etc.

[0074] The present invention also provides a control method for cooking soup or porridge, for example Figure 1 and Figure 2 Shown, including:

[0075] After cooking is completed and entering the heat preservation stage, the opening and closing of the pot lid is detected. If the opening of the pot lid is detected, the pot enters the open-lid boiling compensation heating stage.

[0076] It will be appreciated that when the porridge cooking mode is selected and cooking begins, a total cooking time t is assigned, which begins counting down. The porridge cooking program adjusts the heating power based on the changes in the top temperature TOP and the bottom temperature BOM to complete the entire cooking process. When the total cooking time t (1-2 hours) ends, the porridge cooking function ends and the program automatically enters the keep warm phase. The keep warm phase timer T begins counting up. In one embodiment, the keep warm phase ends when T reaches a predetermined value, such as 30 minutes, and the cooking appliance automatically shuts off, concluding cooking.

[0077] Specifically, during the insulation stage, refer to Figure 1 , it can be set as follows: when the bottom temperature value BOM is less than 60℃, heating at full power (for example 1200W); when the bottom temperature value BOM is greater than or equal to 60℃ and less than or equal to 70℃, heating at 1 / 2 full power; when the bottom temperature value BOM is greater than 70℃ and less than or equal to 75℃, heating at 1 / 5 full power; when the bottom temperature value BOM is greater than 75℃ and less than or equal to 80℃, heating at 1 / 8 full power; and when the top temperature value TOP is greater than 95℃, heating is forced to stop.

[0078] Therefore, after entering the heat preservation stage, the opening and closing of the pot lid is detected at the same time. If the opening of the pot lid is detected, the pot enters the open-lid boiling compensation heating stage.

[0079] Specifically, the uncovered boiling compensation heating stage may include:

[0080] Controlling the heating device to heat at a first predetermined power P1; or

[0081] The heating device is controlled to perform segmented heating with different heating powers.

[0082] The first predetermined power P1 can be set to be greater than the heating power in the heat preservation stage, or

[0083] The first predetermined power P1 is set to be greater than or equal to 80% of the rated power (eg, 1200 W); or, the first predetermined power P1 is set to be greater than or equal to 800 W. In this way, the food in the pot can be boiled quickly after the lid is opened.

[0084] Of course, if the lid-open boiling compensation heating stage is performed in stages with different heating powers, the average heating power during the staged heating process can also be set to be greater than the heating power during the keep warm stage; or, it can be set to be greater than or equal to 80% of the rated power; or, it can be set to be greater than or equal to 800W. Similarly, the maximum heating power during the staged heating process can also be set to be greater than the heating power during the keep warm stage; or, it can be set to be greater than or equal to 80% of the rated power; or, it can be set to be greater than or equal to 800W.

[0085] Furthermore, during the process of detecting the opening and closing of the pot lid, it can be determined whether the pot lid is opened for the first time in the insulation stage. If so, the pot enters the opening lid boiling compensation heating stage; otherwise, the pot does not enter the opening lid boiling compensation heating stage.

[0086] It is generally believed that the first time a user opens the lid during the keep-warm stage is to check whether the food is tumbling and boiling. Therefore, in order to reduce power consumption, compensatory heating is only performed after the user opens the lid for the first time during the keep-warm stage to make the food tumble, without the need for compensatory heating every time the lid is opened.

[0087] Of course, the timing can also be started at the moment of entering the heat preservation stage. If the lid is opened before the timing time t0 reaches the first predetermined time t1, the pot enters the lid-open boiling compensation heating stage; otherwise, the pot does not enter. Preferably, the first predetermined time t1 can meet the following conditions: 5 min ≤ t1 ≤ 15 min.

[0088] That is, if the user opens the pot lid within 5 minutes to 15 minutes after entering the keep warm stage, compensatory heating will be performed to allow the user to see the ingredients tumbling. That is, opening the pot lid within the first predetermined time period t1 is considered to indicate that the user needs to check whether the ingredients are tumbling. However, after the first predetermined time period t1, it can be understood that the user only needs to open the pot lid to take out the soup or porridge, and therefore no compensatory heating is required.

[0089] Furthermore, determining whether the lid is opened for the first time during the keep-warm phase may include determining whether the value of a self-locking register indicating the lid's open / closed state has been incremented by 1. It is understood that a self-locking register indicating the lid's open / closed state is provided in the cooking appliance's main control chip, and the value of the self-locking register can only be incremented to 1, ensuring that only one compensation heating step is performed. It is also understood that after the self-locking register has a value of 1, even if the lid is determined to be open again, the process will not proceed to the lid-open boiling compensation heating phase.

[0090] Of course, in order to save control procedures, it is also possible to exit the lid opening and closing detection after determining that the lid is opened for the first time in the heat preservation stage, for example Figure 3 As shown in .

[0091] Next, in the lid-open boiling compensation heating stage, the heating device can be controlled to heat at a first predetermined power P1, or to heat in sections at different heating powers, and after a second predetermined time t2, the lid-open boiling compensation heating stage is exited; or, upon detecting that the pot lid is closed, the lid-open boiling compensation heating stage is exited. For example, after heating at full power (which can be understood as the first predetermined power P1) for 6 seconds (which can be understood as the second predetermined time t2), the lid-open boiling compensation heating stage is exited.

[0092] More specifically, whether the pot lid is closed can be determined by the temperature change at the top of the cooking cavity or the lid opening and closing signal.

[0093] Specifically, if the top temperature of the cooking cavity shows an upward trend within the third predetermined time period t3, and the temperature change value is greater than or equal to the first preset temperature value T1, or the top temperature is greater than or equal to the sixth preset temperature value T6, or according to the lid closing signal detected by the opening and closing detection device,

[0094] Exit the open-lid boiling compensation heating stage.

[0095] In a specific embodiment, reference Figure 1 For example, if the top temperature TOP and / or bottom temperature BOM rise by more than 5 AD values ​​within 5 seconds, the lid-open boiling compensation heating stage is exited. Alternatively, if the top temperature of the cooking chamber is greater than, for example, 95°C (the sixth preset temperature T6 is typically set 3-5°C below the boiling temperature), or if a lid-close signal is detected, the lid-open boiling compensation heating stage can be exited.

[0096] Next, the aforementioned detection of whether the pot lid is open may include:

[0097] Determine whether the lid is opened based on the temperature change of the cooking chamber, and / or

[0098] Whether the pot lid is opened is determined based on the signal detected by the pot lid opening and closing detection device.

[0099] Specifically, when judging whether the lid is opened based on the temperature of the cooking cavity, it may include: when the temperature of the cooking cavity shows a downward trend within a fourth predetermined time period t4, and the temperature change value is greater than or equal to the second preset temperature value T2, it is determined that the lid is opened. In a specific embodiment, referring to Figure 1 If the top temperature value TOP drops by 15 AD values ​​within 30 seconds (the AD value of the first second is recorded as TOP0, the AD value of the second is recorded as TOP1, and TOP0-TOP1 ≥ 15 within 30 seconds), the lid is determined to be open. The lid can also be determined to be open when the top temperature is below 85℃.

[0100] In other embodiments, a lid opening and closing detection device may be provided to determine whether the lid is opened based on the signal detected. Specifically, the lid opening and closing detection device may be a reed switch and a magnetic field generating device, or a photoelectric switch, or a micro switch or other displacement sensor.

[0101] Continue to refer Figure 1 , the method of the present invention further comprises:

[0102] Heating anomaly detection: The system detects heating anomalies based on the cooking chamber top temperature and / or the pot body temperature. If so, it controls the heating device to stop heating and / or issues an alarm. This prevents repeated heating during the warming phase, which can dry out ingredients like porridge and soup, affecting their taste.

[0103] Specifically, determining whether heating abnormality occurs based on the top temperature of the cooking cavity and / or the temperature of the pot body may include:

[0104] When the top temperature shows an upward trend within the fifth predetermined time period t5, and the temperature change value is greater than or equal to the third preset temperature value T3, it is determined that a heating abnormality occurs; and / or

[0105] When the pot body temperature shows an upward trend within the sixth predetermined time period t6 and the temperature change value is greater than or equal to the fourth preset temperature value T4, it is determined that heating abnormality occurs.

[0106] It can be understood that in one embodiment, it can be set as: the bottom temperature value BOM and / or the pot body temperature rises by 10 AD within 20 seconds (the AD of the first second is recorded as BOM0, the AD of the second second is recorded as BOM1, and after 20 seconds, BOM1-BOM0≥10), and / or the top temperature value TOP rises by 10 AD within 20 seconds (the AD of the first second is recorded as TOP0, the AD of the second second is recorded as TOP1, and after 20 seconds, TOP1-TOP0≥10), it is determined that heating abnormality occurs.

[0107] It should be noted that, during the heat preservation stage, when the opening of the pot lid is detected and heating compensation is performed after the pot lid is closed, it is possible to judge whether heating abnormality occurs with the pot lid closed, that is, repeated heating with the pot lid closed, by the temperature change of the top, bottom, or pot body of the cooking cavity, because after the pot lid is closed, the temperature changes of the top and bottom are very obvious; of course, when the opening of the pot lid is detected and the pot lid is kept open for heating compensation, since the temperature change of the top is not very obvious, it is possible to judge whether heating abnormality occurs only by the temperature change of the bottom of the cooking cavity.

[0108] It should be noted that abnormal heating detection is performed throughout the entire insulation phase. Any abnormality detection should be performed during or after the lid-opening boiling compensation heating phase. That is, abnormal heating detection should be performed continuously during or after each lid-opening compensation heating phase.

[0109] Next, after the lid-open boiling compensation heating stage is completed, the heating device can be controlled to continue heating at the heating power of the insulation stage according to the temperature of the cooking cavity and / or the temperature of the pot body.

[0110] For soups and porridges, after the cooking process enters the heat preservation stage, low-power heating will still be performed according to the temperature of the cooking chamber, but it will not be enough to cause boiling. The temperature in the pot will drop even more after the lid is opened. According to the control method and cooking appliance of the present invention, if the lid opening action is detected, the lid opening boiling compensation heating stage will be entered to perform compensation heating, so that the user can see the expected boiling phenomenon of the ingredients, and believe that the ingredients are cooked and the effect is good, and can be eaten with confidence.

[0111] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the field of the invention. The terms used herein are for the purpose of describing specific implementations only and are not intended to limit the invention. Terms such as "component" and the like appearing herein may refer to either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing herein may refer to either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0112] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Those skilled in the art will appreciate that various variations and modifications may be made based on the teachings of the present invention, and such variations and modifications fall within the scope of protection claimed in the present invention.

Claims

1. A method for controlling soup and porridge cooking, characterized in that: include: After cooking is completed and the heat preservation stage begins, the lid opening and closing detection is performed. If the lid opening is detected, the cooking process begins with the lid opening boiling compensation heating stage. During the lid opening boiling compensation heating stage, the heating device is controlled to heat the food so that the food rolls. During the process of detecting the opening and closing of the pot lid, it is determined whether the pot lid is opened for the first time in the heat preservation stage. If so, the pot enters the lid opening boiling compensation heating stage; otherwise, the pot does not enter the lid opening boiling compensation heating stage.

2. The soup or porridge cooking control method according to claim 1, characterized in that: The lid-open boiling compensation heating stage includes: Controlling the heating device to heat at a first predetermined power P1; or The heating device is controlled to perform segmented heating with different heating powers.

3. The control method for cooking soup or porridge according to claim 2, characterized in that: The first predetermined power P1 is greater than the heating power in the heat preservation stage, or The first predetermined power P1 is greater than or equal to 80% of the rated power; or The first predetermined power P1 is greater than or equal to 800W.

4. The control method for cooking soup or porridge according to claim 2, characterized in that: The average heating power during the segmented heating process is greater than the heating power during the insulation stage, or The average heating power is greater than or equal to 80% of the rated power; or The average heating power is greater than or equal to 800W.

5. The soup or porridge cooking control method according to claim 2, characterized in that: The maximum heating power during the segmented heating process is greater than the heating power during the insulation stage, or The maximum heating power is greater than or equal to 80% of the rated power; or The maximum heating power is greater than or equal to 800W.

6. The soup or porridge cooking control method according to claim 2, characterized in that: The heating device is an electromagnetic heating device.

7. The soup or porridge cooking control method according to claim 1, characterized in that: After determining that the pot lid is opened for the first time in the heat preservation stage, the detection of the pot lid opening and closing is exited.

8. The soup or porridge cooking control method according to claim 1, characterized in that: The determining whether the pot lid is opened for the first time in the heat preservation stage includes: Determine whether the value of the self-locking register indicating the open / close state of the pot lid is increased by 1.

9. The soup or porridge cooking control method according to claim 1, characterized in that: The timing starts at the moment of entering the heat preservation stage. If the lid is opened before the timing duration t0 reaches the first predetermined duration t1, the lid-opening boiling compensation heating stage is entered; otherwise, the stage is not entered.

10. The soup or porridge cooking control method according to claim 9, characterized in that: The first predetermined time t1 satisfies: 5min≤t1≤15min.

11. The method for controlling soup or porridge cooking according to any one of claims 1 to 10, characterized in that: The heating device is controlled to heat at a first predetermined power P1, or to perform segmented heating at different heating powers, and after a second predetermined time t2, the lid-open boiling compensation heating stage is exited; or, upon detecting that the pot lid is closed, the lid-open boiling compensation heating stage is exited.

12. The soup or porridge cooking control method according to claim 11, characterized in that: If the top temperature of the cooking cavity shows an upward trend within the third predetermined time t3, and the temperature change value is greater than or equal to the first preset temperature value T1, or the top temperature is greater than or equal to the sixth preset temperature value T6, Alternatively, according to the cover closing signal detected by the opening and closing detection device, Exit the uncovered boiling compensation heating stage.

13. The method for controlling soup or porridge cooking according to any one of claims 1 to 10, characterized in that: Detecting whether the pot lid is open includes: Determining whether the pot lid is opened based on the top temperature or temperature change of the cooking cavity, and / or Whether the pot lid is opened is determined based on a signal detected by a pot lid opening and closing detection device.

14. The soup or porridge cooking control method according to claim 13, characterized in that: In the case of judging whether the lid is opened according to the top temperature, When the top temperature shows a downward trend within a fourth predetermined time period t4 and the temperature change value is greater than or equal to the second preset temperature value T2, or the top temperature is lower than a fifth preset temperature value T5, it is determined that the pot lid is opened.

15. The method for controlling soup or porridge cooking according to any one of claims 1 to 10, characterized in that: Also includes: Detection of abnormal heating: Determine whether abnormal heating occurs based on the top temperature of the cooking cavity and / or the temperature of the pot body. If so, control the heating device to stop heating and / or issue an alarm.

16. The soup or porridge cooking control method according to claim 15, characterized in that: include: When the top temperature shows an upward trend within the fifth predetermined time period t5, and the temperature change value is greater than or equal to the third preset temperature value T3, it is determined that heating abnormality occurs; and / or When the temperature of the pot body shows an upward trend within the sixth predetermined time period t6 and the temperature change value is greater than or equal to the fourth preset temperature value T4, it is determined that heating abnormality occurs.

17. The soup or porridge cooking control method according to claim 15, characterized in that: When entering the uncovered boiling compensation heating stage, the heating abnormality is detected.

18. The soup or porridge cooking control method according to claim 1, characterized in that: After the lid-open boiling compensation heating stage is completed, the heating device is controlled to continue heating according to the temperature of the cooking cavity and / or the temperature of the pot body at the heating power of the insulation stage.

19. A cooking utensil, characterized in that: include: a temperature detection device for detecting the temperature of the top of the cooking cavity and the temperature of the pot of the cooking utensil; a heating device, for heating the cooking cavity; as well as A control device, wherein the control device is signal-connected to the temperature detection device and the heating device, The control device controls the cooking appliance to execute the steps of the method according to any one of claims 1 to 18.

Images