Cooking method and device for electric pressure cooker, electric pressure cooker and storage medium

Abstract

The present application relates to a cooking method, device, electric pressure cooker, and storage medium for an electric pressure cooker. The method includes: during the pressure cooking phase, controlling a pressure reducing device to continuously operate according to a target heat dissipation power, while simultaneously obtaining real-time monitoring operating parameters within the electric pressure cooker; the operating parameters include at least one of current pressure and current temperature; controlling the heating power of a heating device based on the operating parameters; the pressure reducing device and the heating device are disposed relative to each other within the electric pressure cooker; and entering a pressure relief phase when the end condition of the pressure cooking phase is met. This method can improve cooking quality while maintaining the same cooking time, or shorten cooking time while maintaining the same cooking quality.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a cooking method and device for an electric pressure cooker, an electric pressure cooker, and a storage medium. Background Art

[0002] As the pace of life accelerates, people's demand for quick cooking is also on the rise. One of the cooking appliances that enables quick cooking is the electric pressure cooker. Currently, the development of electric pressure cookers has reached a bottleneck. On the one hand, as the cooking pressure increases, the pressure release time becomes longer and longer, making it difficult to further shorten the overall cooking time. On the other hand, because it is difficult to achieve boiling inside the electric pressure cooker, it is difficult to further improve the cooking effect. Therefore, there is room for further improvement in the control methods of existing electric pressure cookers. Summary of the Invention

[0003] Based on this, it is necessary to provide a cooking method, device, electric pressure cooker and storage medium for an electric pressure cooker that can improve cooking effect at the same cooking time or shorten cooking time at the same cooking effect to address the above technical problems.

[0004] A cooking method using an electric pressure cooker, comprising:

[0005] During the pressure cooking stage, the pressure reducing device is controlled to continuously operate according to the target heat dissipation power, and at the same time, real-time monitoring operating parameters inside the electric pressure cooker are obtained; the operating parameters include at least one of current pressure and current temperature;

[0006] The heating power of the heating device is controlled according to the operating parameters; the pressure reducing device is arranged inside the electric pressure cooker opposite to the heating device;

[0007] When the pressure cooking stage ends, the pressure release stage begins.

[0008] In one embodiment, the heating power includes a first heating power and a second heating power; and controlling the heating power of the heating device according to the operating parameters includes:

[0009] When the current pressure is greater than or equal to a first preset pressure, and / or the current temperature is greater than or equal to a first preset temperature, controlling the heating device to heat according to a first heating power;

[0010] When the current pressure is less than the second preset pressure, and / or the current temperature is less than the second preset temperature, the heating device is controlled to heat according to the second heating power; the first preset pressure is greater than the second preset pressure; the first preset temperature is greater than the second preset temperature; the first heating power is less than or equal to the target heat dissipation power; the target heat dissipation power is less than or equal to the second heating power.

[0011] In one embodiment, controlling the heating power of the heating device according to the operating parameters further includes:

[0012] When the current pressure is less than the first preset pressure and greater than or equal to the second preset pressure, and / or the current temperature is less than the first preset temperature and greater than or equal to the second preset pressure, the heating device is controlled to maintain the current heating power for heating.

[0013] In one embodiment, controlling the heating power of the heating device according to the operating parameters further includes:

[0014] When the current pressure is greater than or equal to a third preset pressure, and / or the current temperature is greater than or equal to a third preset temperature, the heating device is controlled to stop heating; the third preset pressure is greater than the first preset pressure; the third preset temperature is greater than the third preset temperature.

[0015] In one embodiment, the method further comprises:

[0016] When the current pressure is less than or equal to a fourth preset pressure, and / or the current temperature is less than or equal to a fourth preset temperature, the pressure reducing device is controlled to stop running, and the heating device is controlled to heat according to a third heating power; the fourth preset pressure is less than the second preset pressure; and the fourth preset temperature is less than the fourth preset temperature.

[0017] In one embodiment, when the pressure cooking stage end condition is met, entering the pressure release stage includes:

[0018] When the duration of the pressure cooking stage is greater than or equal to the preset duration, it is determined that the pressure cooking stage end condition is met and the pressure release stage is entered.

[0019] In one embodiment, the step of determining the target heat dissipation power includes:

[0020] Obtain the weight, type and cooking function of the food to be cooked;

[0021] The target heat dissipation power is determined according to the weight of the food to be cooked, the type of the food to be cooked, and the cooking function.

[0022] In one embodiment, obtaining the weight of the cooked food includes:

[0023] Determine the weight of the food to be cooked based on the temperature change rate and / or pressure change rate during the heating phase or the pressure increasing phase; or

[0024] The weight of the food being cooked is detected by a weight sensor.

[0025] In one embodiment, the method further comprises:

[0026] During the heating phase, the heating device is controlled to perform heating according to a fourth heating power;

[0027] When the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, the pressure is increased.

[0028] During the boosting phase, controlling the heating device to perform heating according to a fifth heating power;

[0029] When the temperature in the electric pressure cooker is greater than or equal to the pressure boosting temperature threshold, the pressure cooking stage is entered.

[0030] In one embodiment, the method further comprises:

[0031] During the pressure relief stage, the heating device is controlled to stop heating, and the pressure reduction device is controlled to continue operating according to the pressure relief power;

[0032] When the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold, the cooking process ends.

[0033] A cooking device for an electric pressure cooker, comprising:

[0034] a first cooking control module, configured to control the pressure reducing device to continuously operate according to a target heat dissipation power during a pressure cooking phase, and simultaneously obtain real-time monitored operating parameters inside the electric pressure cooker; the operating parameters including at least one of a current pressure and a current temperature;

[0035] a second cooking control module, configured to control the heating power of the heating device according to the operating parameters; the pressure reducing device and the heating device are arranged inside the electric pressure cooker opposite to each other;

[0036] The cooking stage control module is used to enter the pressure release stage when the pressure cooking stage end condition is met.

[0037] An electric pressure cooker includes an electric pressure cooker body, a pressure reducing device, a heating device, and a controller, and also includes a pressure detection device and / or a temperature detection device. The controller includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0038] During the pressure cooking stage, the pressure reducing device is controlled to continuously operate according to the target heat dissipation power, and at the same time, real-time monitoring operating parameters inside the electric pressure cooker are obtained; the operating parameters include at least one of current pressure and current temperature;

[0039] The heating power of the heating device is controlled according to the operating parameters; the pressure reducing device is arranged inside the electric pressure cooker opposite to the heating device;

[0040] When the pressure cooking stage ends, the pressure release stage begins.

[0041] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0042] During the pressure cooking stage, the pressure reducing device is controlled to continuously operate according to the target heat dissipation power, and at the same time, real-time monitoring operating parameters inside the electric pressure cooker are obtained; the operating parameters include at least one of current pressure and current temperature;

[0043] The heating power of the heating device is controlled according to the operating parameters; the pressure reducing device is arranged inside the electric pressure cooker opposite to the heating device;

[0044] When the pressure cooking stage ends, the pressure release stage begins.

[0045] The above-mentioned cooking method, device, electric pressure cooker and storage medium of the electric pressure cooker, the pressure reducing device and the heating device are arranged relative to each other inside the electric pressure cooker. During the pressure cooking stage of the electric pressure cooker, the pressure reducing device is controlled to operate continuously according to the target heat dissipation power to achieve continuous heat dissipation. At the same time, at least one operating parameter of the current pressure and current temperature monitored in real time inside the electric pressure cooker is dynamically obtained, and the heating power of the heating device is dynamically controlled according to the dynamically obtained operating parameters to heat one part and cool another part inside the electric pressure cooker at the same time, thereby causing micro-boiling in the electric pressure cooker, thereby improving the cooking effect of the electric pressure cooker under the same cooking time, or shortening the cooking time under the same cooking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic structural diagram of an electric pressure cooker in one embodiment;

[0047] Figure 2 1 is a schematic flow chart of a cooking method using an electric pressure cooker according to an embodiment;

[0048] Figure 3 Schematic diagram of the principle of a cooking method using an electric pressure cooker in one embodiment;

[0049] Figure 4 Schematic diagram of the cooking process of an electric pressure cooker in one embodiment;

[0050] Figure 5 is a schematic diagram showing changes in pressure and temperature over time in an electric pressure cooker during cooking in one embodiment;

[0051] Figure 6 is a schematic diagram showing power changes over time during a cooking process in one embodiment;

[0052] Figure 7 FIG. 1 is a structural block diagram of a cooking device of an electric pressure cooker in one embodiment. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0054] The cooking method of the electric pressure cooker provided in this application can be applied to Figure 1 In the electric pressure cooker shown. Figure 1 The electric pressure cooker includes an electric pressure cooker body, a controller, a heating device, a pressure reducing device, and at least one of a pressure detection device and a temperature detection device. The controller is used to implement the cooking method using an electric pressure cooker provided in one or more embodiments of the present application. The temperature detection device is used to monitor the temperature inside the electric pressure cooker, specifically the top temperature of the electric pressure cooker. The pressure detection device is used to monitor the pressure inside the electric pressure cooker.

[0055] In one embodiment, there are one or more pressure reducing devices, at least one of which is a heat dissipation device that achieves rapid pressure reduction through accelerated cooling, and one of which is an exhaust device, such as an exhaust valve. During the pressure-boosting cooking process in the pressure cooking stage, the pressure reducing device acting as an exhaust device is inoperative, while the pressure reducing device acting as a heat dissipation device dissipates heat according to the heat dissipation power specified in each embodiment. During other cooking processes in the pressure cooking stage, the pressure reducing device acting as an exhaust device may be inoperative or may work in conjunction with the pressure reducing device acting as a heat dissipation device to assist in pressure reduction and heat dissipation. In this case, the pressure reducing devices work in conjunction to achieve the heat dissipation effect specified in each embodiment.

[0056] In one embodiment, the pressure reducing device is disposed at the top of the electric pressure cooker. It is understood that the pressure reducing device is not limited to being disposed at the top of the electric pressure cooker, but may also be disposed at other locations, as long as it is compatible with the cooking method of the electric pressure cooker provided in this application, and is not specifically limited here.

[0057] In one embodiment, Figure 2 As shown, a cooking method of an electric pressure cooker is provided, and the method is applied to Figure 1 The controller in the example is used to illustrate the following steps:

[0058] Step 202: During the pressure cooking stage, the pressure reducing device is controlled to continuously operate according to the target heat dissipation power, and at the same time, real-time monitoring operating parameters inside the electric pressure cooker are obtained; the operating parameters include at least one of the current pressure and the current temperature.

[0059] The target heat dissipation power is the heat dissipation power of the pressure-reducing device during the entire pressure cooking phase. This target heat dissipation power can be customized based on empirical values or dynamically determined based on the weight of the food being cooked, the type of food, and the cooking function. The entire cooking process of an electric pressure cooker sequentially includes a heating phase, a pressure-increasing phase, a pressure-cooking phase, and a pressure-releasing phase. A detection phase may also be included before the heating phase. Operating parameters include at least one of the current temperature and current pressure inside the electric pressure cooker.

[0060] Specifically, after entering the pressure cooking phase from the pressure boost phase, the controller obtains the current pressure inside the electric pressure cooker, as monitored in real time by the pressure detection device, and / or obtains the current temperature inside the electric pressure cooker, as monitored in real time by the temperature detection device, to obtain real-time operating parameters of the electric pressure cooker. Simultaneously, during the pressure cooking phase, the controller controls the pressure reducing device to continuously operate at a target heat dissipation power to achieve continuous heat dissipation within the electric pressure cooker.

[0061] Step 204, controlling the heating power of the heating device according to the operating parameters; the pressure reducing device and the heating device are arranged opposite to each other inside the electric pressure cooker.

[0062] Specifically, the controller dynamically determines the heating power of the heating device based on the current pressure and / or temperature inside the electric pressure cooker, which is monitored in real time, and controls the heating device to heat the pressure cooker at the determined heating power. The pressure-reducing device and the heating device are positioned relative to each other at different locations within the electric pressure cooker. This allows for continuous heat dissipation from the pressure-reducing device and continuous heating from the heating device, thereby achieving heating at one location within the electric pressure cooker and cooling at another location within the electric pressure cooker, thereby promoting micro-boiling within the electric pressure cooker.

[0063] In one embodiment, the pressure reducing device and the heating device are arranged relative to each other inside the electric pressure cooker. Specifically, the pressure reducing device can be arranged at the top of the electric pressure cooker, and the heating device can be arranged at the bottom of the electric pressure cooker, so as to simultaneously heat the lower part and cool the upper part of the electric pressure cooker. Alternatively, the pressure reducing device can be arranged at the top and / or top side of the electric pressure cooker, and the heating device can be arranged at the bottom and bottom side of the electric pressure cooker. No specific limitation is made here, as long as it is compatible with the cooking method of the electric pressure cooker provided in one or more embodiments of the present application.

[0064] Step 206: When the pressure cooking stage end condition is met, the pressure release stage is entered.

[0065] The pressure cooking stage exit condition is a condition or basis for determining whether to exit / end the pressure cooking stage and enter the pressure release stage. Specifically, during the pressure cooking stage, the controller dynamically determines whether the pressure cooking stage exit condition is satisfied. If the pressure cooking stage exit condition is satisfied, the controller exits the pressure cooking stage and enters the pressure release stage. If the pressure cooking stage exit condition is not satisfied, the controller dynamically adjusts the heating power of the heating device based on real-time monitored operating parameters until the pressure cooking stage exit condition is satisfied, at which point the controller exits the pressure cooking stage and enters the pressure release stage.

[0066] In the above-mentioned cooking method of the electric pressure cooker, the pressure reducing device and the heating device are arranged relative to each other inside the electric pressure cooker. During the pressure cooking stage of the electric pressure cooker, the pressure reducing device is controlled to operate continuously according to the target heat dissipation power to achieve continuous heat dissipation. At the same time, at least one operating parameter of the current pressure and the current temperature monitored in real time inside the electric pressure cooker is dynamically obtained, and the heating power of the heating device is dynamically controlled according to the dynamically obtained operating parameters to simultaneously heat one part and cool another part inside the electric pressure cooker, thereby causing micro-boiling in the electric pressure cooker, thereby improving the cooking effect of the electric pressure cooker under the same cooking time, or shortening the cooking time under the same cooking effect.

[0067] In one embodiment, the heating power includes a first heating power and a second heating power; step 204 includes: when the current pressure is greater than or equal to the first preset pressure, and / or the current temperature is greater than or equal to the first preset temperature, controlling the heating device to heat according to the first heating power; when the current pressure is less than the second preset pressure, and / or the current temperature is less than the second preset temperature, controlling the heating device to heat according to the second heating power; the first preset pressure is greater than the second preset pressure; the first preset temperature is greater than the second preset temperature; the first heating power is less than or equal to the target heat dissipation power; the target heat dissipation power is less than or equal to the second heating power.

[0068] The first preset pressure, second preset pressure, first preset temperature, and second preset temperature can be customized based on empirical values or dynamically determined based on the weight of the food being cooked, the type of food, and the cooking function. For example, the first preset temperature can be 120°C and the second preset temperature can be 118°C. The first preset pressure is greater than the second preset pressure. The first preset temperature is greater than the second preset temperature.

[0069] Specifically, during the pressure cooking stage, the controller obtains the current temperature and / or current pressure monitored in real time inside the electric pressure cooker. If the current pressure is greater than or equal to the first preset pressure, and / or the current temperature is greater than or equal to the first preset temperature, the controller controls the heating device to heat according to the first heating power, and the first heating power of the heating device is less than or equal to the target heat dissipation power of the pressure reducing device, so as to achieve pressure reduction cooking. If the current pressure is less than the second preset pressure, and / or the current temperature is less than the second preset temperature, the controller controls the heating device to heat according to the second heating power, and the target heat dissipation power of the pressure reducing device is less than or equal to the second heating power of the heating device, so as to achieve pressure increase cooking.

[0070] In one embodiment, the first preset pressure satisfies the following mapping relationship: P1≥60kPa (pressure unit, kilopascals), and the second preset pressure satisfies the following mapping relationship with the first preset pressure: 0.8*P1≤P2≤0.95*P1, where P1 represents the first preset pressure and P2 represents the second preset pressure.

[0071] In one embodiment, the first preset temperature satisfies the following mapping relationship: T1≥110°C (degrees Celsius), and the second preset temperature satisfies the following mapping relationship with the first preset temperature: T1-10°C≤T2≤T1-1°C, where T1 represents the first preset temperature and T2 represents the second preset temperature.

[0072] In one embodiment, the first heating power, the second heating power, and the target heat dissipation power satisfy the following mapping relationship: 0≤Q1≤Q3≤Q2≤2*Q3, where Q1 represents the first heating power, Q2 represents the second heating power, and Q3 represents the target heat dissipation power. The target heat dissipation power Q3 further satisfies the following mapping relationship: Q3≥200W (watts).

[0073] In one embodiment, the second preset temperature and the first preset temperature satisfy the following mapping relationship: T1-T2≥5°C, where T2 represents the second preset pressure and T1 represents the first preset pressure.

[0074] In the above embodiment, the heating power of the heating device is dynamically adjusted according to the current pressure and / or current temperature monitored in real time inside the electric pressure cooker, so as to achieve the effect of controlling the cooking device (including the heating device and the heat dissipation device) to perform pressure-reducing cooking or pressure-raising cooking, so as to achieve micro-boiling inside the electric pressure cooker, thereby improving the cooking effect.

[0075] In one embodiment, step 204 further includes: when the current pressure is less than the first preset pressure and greater than or equal to the second preset pressure, and / or the current temperature is less than the first preset temperature and greater than or equal to the second preset pressure, controlling the heating device to maintain the current heating power for heating.

[0076] In one embodiment, when exiting the pressure boosting stage and entering the pressure cooking stage, if the current pressure in the electric pressure cooker is greater than or equal to the second preset pressure and less than the first preset pressure, and / or the current temperature in the electric pressure cooker is greater than or equal to the second preset temperature and less than the first preset temperature, the controller controls the heating device to maintain the current heating power for heating, and controls the pressure reducing device to dissipate heat according to the target heat dissipation power.

[0077] In one embodiment, during the pressure cooking stage, if during the pressure reduction cooking process, it is determined that the current pressure in the electric pressure cooker is greater than or equal to the second preset pressure and less than the first preset pressure, and / or the current temperature in the electric pressure cooker is greater than or equal to the second preset temperature and less than the first preset temperature, the controller controls the heating device to heat according to the first heating power, and controls the pressure reduction device to still dissipate heat according to the target heat dissipation device. Correspondingly, if during the pressure increase cooking process, it is determined that the current pressure in the electric pressure cooker is greater than or equal to the second preset pressure and less than the first preset pressure, and / or the current temperature in the electric pressure cooker is greater than or equal to the second preset temperature and less than the first preset temperature, the controller controls the heating device to heat according to the second heating power, and controls the pressure reduction device to still dissipate heat according to the target heat dissipation device.

[0078] In the above embodiment, if the current pressure in the electric pressure cooker is greater than or equal to the second preset pressure and less than the first preset pressure, and / or the current temperature in the electric pressure cooker is greater than or equal to the second preset temperature and less than the first preset temperature, the pressure reducing device and the heating device are controlled to maintain the current operating state to avoid frequent switching of the operating power of the heating device due to changes in the pressure and / or temperature inside the electric pressure cooker, thereby improving the service life.

[0079] In one embodiment, step 204 further includes: when the current pressure is greater than or equal to a third preset pressure, and / or the current temperature is greater than or equal to a third preset temperature, controlling the heating device to stop heating; the third preset pressure is greater than the first preset pressure; the third preset temperature is greater than the third preset temperature.

[0080] The third preset pressure and the third preset temperature can be customized according to experience, and the third preset temperature is, for example, 125° C. The third preset pressure is greater than the first preset pressure, and the third preset temperature is greater than the third preset temperature.

[0081] Specifically, when the current pressure in the electric pressure cooker is greater than or equal to the third preset pressure, and / or the current temperature in the electric pressure cooker is greater than or equal to the third preset temperature, the controller controls the heating device to stop heating, and controls the pressure reducing device to dissipate heat according to the target heat dissipation device.

[0082] In one embodiment, the third preset pressure and the first preset pressure satisfy the following mapping relationship: P3≥P1+25 kPa, where P1 represents the first preset pressure and P3 represents the third preset pressure.

[0083] In one embodiment, the third preset temperature and the first preset temperature satisfy the following mapping relationship: T3 ≥ T1 + 5° C., where T1 represents the first preset temperature and T3 represents the third preset temperature.

[0084] In the above embodiment, when the current pressure and / or current temperature in the electric pressure cooker is high enough, the heating device is controlled to stop heating, and the heat dissipation device is controlled to continue dissipating heat, so as to ensure cooking safety while ensuring the cooking effect.

[0085] In one embodiment, the cooking method of the above-mentioned electric pressure cooker also includes: when the current pressure is less than or equal to a fourth preset pressure, and / or the current temperature is less than or equal to a fourth preset temperature, controlling the pressure reducing device to stop running, and controlling the heating device to heat according to a third heating power; the fourth preset pressure is less than the second preset pressure; and the fourth preset temperature is less than the fourth preset temperature.

[0086] The fourth preset pressure and the fourth preset temperature can both be customized based on empirical values. For example, the fourth preset temperature is 115°C. The fourth preset pressure is lower than the second preset pressure; the fourth preset temperature is lower than the fourth preset temperature. The third heating power can also be customized based on empirical values. For example, either the first heating power or the second heating power can be used as the third heating power, or the fourth heating power during the heating phase can be used as the third heating power. This is not specifically limited here.

[0087] Specifically, when the current pressure is less than or equal to the fourth preset pressure, and / or the current temperature is less than or equal to the fourth preset temperature, the controller controls the heat dissipation device to stop dissipating heat, and controls the heating device to heat according to the third heating power to achieve boosted cooking.

[0088] In one embodiment, the fourth preset pressure and the second preset pressure satisfy the following mapping relationship: P4≤P2-25 kPa, where P4 represents the fourth preset pressure and P2 represents the second preset pressure.

[0089] In one embodiment, the fourth preset temperature and the second preset temperature satisfy the following mapping relationship: T4≤T2-5°C, where T2 represents the second preset temperature and T4 represents the fourth preset temperature.

[0090] In the above embodiment, when the current pressure and / or current temperature in the electric pressure cooker is relatively low, the pressure reducing device is controlled to stop heat dissipation, and the heating device is controlled to continue heating at the third heating power to achieve pressure-boosting cooking.

[0091] In one embodiment, step 206 includes: when the duration of the pressure cooking stage is greater than or equal to a preset duration, determining that the pressure cooking stage end condition is met and entering the pressure release stage.

[0092] The preset duration can be customized based on experience, and can be any value in the interval [5, 120 min], such as 30 min (minutes), or can be determined based on the weight of the food being cooked.

[0093] Specifically, from the time of entering the pressure cooking stage, the duration of the pressure cooking stage is counted. When the duration of the pressure cooking stage reaches a preset duration, it is determined that the exit condition of the pressure cooking stage is met, the pressure cooking stage is exited, and the pressure release stage is entered.

[0094] In the above embodiment, whether the pressure cooking stage exit condition is met is determined based on the duration of the pressure cooking stage, so that when it is determined that the pressure cooking stage exit condition is met, the pressure cooking stage is exited and the pressure release stage is entered to improve the cooking effect.

[0095] In one embodiment, the step of determining the target heat dissipation power includes: obtaining the weight of the food to be cooked, the type of the food to be cooked, and the cooking function; and determining the target heat dissipation power according to the weight of the food to be cooked, the type of the food to be cooked, and the cooking function.

[0096] The "food weight" refers to the weight of the food currently being cooked in the electric pressure cooker. The "food type" refers to the type of food currently being cooked in the electric pressure cooker. The "cooking function" refers to the cooking function being used, such as rice, porridge, or soup.

[0097] Specifically, after entering the pressure cooking stage, or at any time before entering the pressure cooking stage during the cooking process, the controller obtains the weight, type, and cooking function of the food being cooked, and determines the target heat dissipation power of the pressure reducing device based on the obtained weight, type, and cooking function.

[0098] In one embodiment, the controller searches a pre-configured mapping table according to the weight of the food being cooked, the type of food being cooked, and the cooking function, to obtain the target heat dissipation power of the pressure reduction device.

[0099] In one embodiment, the weight of the food, the type of food, and the cooking function can be determined by detecting user input / selection, or automatically. Automatic identification of the food weight includes detection via a weight sensor, or determination based on the rate of change of temperature and / or pressure during the heating or pressure-raising phases, where the rate of change of temperature and / or pressure is negatively correlated with the weight of the food.

[0100] In the above embodiment, the target heat dissipation power of the pressure reducing device during the pressure cooking stage is dynamically determined based on the weight of the food being cooked, the type of food being cooked, and the cooking function, so that the pressure reducing device is controlled to continuously dissipate heat according to the target heat dissipation power during the pressure cooking stage. By dynamically controlling the heating power of the heating device based on the real-time monitored current temperature and / or current pressure, the cooking device is controlled to alternately perform pressure reduction cooking and pressure increase cooking, thereby achieving a better cooking effect with the same cooking time, or shortening the cooking time with the same cooking effect.

[0101] In one embodiment, obtaining the weight of the food to be cooked includes: determining the weight of the food to be cooked according to a temperature change rate and / or a pressure change rate in a heating stage or a pressure increasing stage; or detecting the weight of the food to be cooked by a weight sensor.

[0102] The temperature rate of change indicates how quickly temperature changes over time. The pressure rate of change indicates how quickly pressure changes over time. Within a fixed heating time, a more pronounced temperature change or a larger temperature difference indicates a faster temperature rate of change. At a fixed temperature difference, a shorter heating time indicates a faster temperature rate of change.

[0103] Specifically, the controller can obtain the weight of the food being cooked by any of the following methods: determining the weight of the food being cooked based on the rate of change of temperature and / or pressure during the heating phase; determining the weight of the food being cooked based on the rate of change of temperature and / or pressure during the pressure increase phase; or detecting the weight of the food being cooked using a weight sensor. Taking the temperature change rate during the heating phase as an example, the slope of the temperature change over time during the heating phase is determined as the temperature change rate.

[0104] In the above embodiments, the weight of the food to be cooked is determined based on the temperature change rate and / or pressure change rate during the heating phase, or based on the temperature change rate and / or pressure change rate during the pressure increasing phase, or the weight of the food to be cooked is detected by a weight sensor, thereby ensuring the accuracy of the weight of the food to be cooked.

[0105] In one embodiment, the cooking method of the above-mentioned electric pressure cooker also includes: in the heating stage, controlling the heating device to heat according to a fourth heating power; when the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, entering the boosting stage; in the boosting stage, controlling the heating device to heat according to a fifth heating power; when the temperature in the electric pressure cooker is greater than or equal to the boosting temperature threshold, entering the pressure cooking stage.

[0106] The heating temperature threshold is used to determine whether to exit the heating phase and enter the pressure boost phase. The pressure boost temperature threshold is used to determine whether to exit the pressure boost phase and enter the pressure cooking phase. The fourth heating power, fifth heating power, heating temperature threshold, and pressure boost temperature threshold can all be customized based on experience / experimental data. For example, the fourth heating power can be 1200W, the fifth heating power can be 900W, the heating temperature threshold can be 90°C (degrees Celsius), and the pressure boost temperature threshold can be 115°C.

[0107] Specifically, during the heating phase, the controller controls the heating device to heat at a fourth heating power and monitors the temperature inside the electric pressure cooker in real time through a temperature sensor. When the temperature inside the electric pressure cooker is greater than or equal to a heating temperature threshold, it indicates that the water temperature inside the electric pressure cooker is close to boiling and a slight pressure begins to exist inside the electric pressure cooker. Thus, the heating phase is exited and the pressure-boosting phase is entered. During the pressure-boosting phase, the controller controls the heating device to heat at a fifth heating power and monitors the temperature inside the electric pressure cooker in real time through a temperature sensor. When the temperature inside the electric pressure cooker is greater than or equal to a pressure-boosting temperature threshold, it indicates that the pressure inside the electric pressure cooker is close to a preset pressure cooker rated pressure (e.g., 105 kPa). Thus, the pressure-boosting phase is exited and the pressure cooking phase is entered.

[0108] In one embodiment, the temperature inside the electric pressure cooker in one or more embodiments of the present application refers to the top temperature inside the electric pressure cooker.

[0109] In one embodiment, the fourth heating power of the heating device during the heating phase may specifically be an average heating power. Thus, throughout the entire heating phase, the actual heating power of the heating device may fluctuate slightly around the fourth heating power. Alternatively, the heating device may heat according to a preset duty cycle to ensure that the average heating power throughout the entire heating phase is the fourth heating power. Similarly, the fifth heating power of the heating device during the boost phase may also be an average heating power, which is not specifically limited herein.

[0110] In one embodiment, after entering the boost stage, the controller controls the exhaust device in the depressurization device to operate to discharge the air inside the electric pressure cooker, and after the discharge control, controls the exhaust device to stop running, and controls the heating device to heat according to the fifth heating power.

[0111] In one embodiment, after the selection and setting of the cooking function is completed according to the user's choice, the cooking process of the electric pressure cooker begins, first entering the detection stage. In the detection stage, it is detected whether the inner pot of the electric pressure cooker has been installed. After the detection is completed, the detection stage is exited and the heating stage is entered.

[0112] In the above embodiment, before entering the pressure cooking stage, the interior of the electric pressure cooker is heated and pressurized through the heating stage and the pressure increasing stage.

[0113] In one embodiment, the cooking method of the electric pressure cooker further includes: in the pressure relief stage, controlling the heating device to stop heating, and controlling the pressure reducing device to continue operating according to the pressure relief power; when the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold, ending the cooking process.

[0114] The pressure relief power can be customized based on empirical values, such as using the maximum heat dissipation power of the pressure-reducing device as the pressure relief power, or using the target heat dissipation power of the pressure-reducing device as the pressure relief power, without specific limitations here. The pressure relief temperature threshold can also be customized based on empirical values, such as 99°C.

[0115] Specifically, during the pressure relief stage, the controller controls the heating device to stop heating, and controls the pressure reduction device to continuously dissipate heat and reduce pressure according to the pressure relief power, and monitors the temperature inside the electric pressure cooker in real time. When the temperature inside the electric pressure cooker is monitored to be lower than the pressure relief temperature threshold, it indicates that the pressure relief is completed, and the pressure relief stage is exited, ending the entire cooking process.

[0116] In the above embodiment, after exiting the pressure cooking stage and entering the pressure release stage, the heating device is controlled to stop heating, and the pressure reducing device is controlled to reduce pressure and dissipate heat, and the cooking process ends after the pressure reduction and heat dissipation are completed.

[0117] In one embodiment, the target heat dissipation power in one or more embodiments of the present application is the average heat dissipation power of the pressure reducing device during the pressure cooking stage. Therefore, during the entire pressure cooking stage, the actual heat dissipation power of the pressure reducing device may fluctuate within a relatively small range around the target heat dissipation power, thereby ensuring that the average heat dissipation power of the pressure reducing device during the entire pressure cooking stage is the target heat dissipation power.

[0118] like Figure 3 As shown in FIG, a schematic diagram of a cooking method using an electric pressure cooker is provided in one embodiment. Figure 3After cooking starts, the heating device is controlled to heat at P=1200W, and it is determined whether the top temperature inside the electric pressure cooker is greater than or equal to 90°C. If not, the process returns to the step of controlling the heating device to heat at P=1200W and continues to operate. If so, the heating device is controlled to heat at P=900W and it is determined whether the top temperature inside the electric pressure cooker is greater than or equal to 115°C. If not, the process returns to the step of controlling the heating device to heat at P=900W and continues to operate. If so, it is determined whether the duration of the pressure cooking stage is greater than or equal to 30 minutes. If not, the pressure reducing device is controlled to continuously dissipate heat at a target heat dissipation power of 500W, and it is determined whether the top temperature inside the electric pressure cooker monitored in real time is greater than or equal to 120°C. If the top temperature inside the electric pressure cooker is greater than or equal to 120°C, the heating device is controlled to heat at P=400W. To achieve reduced-pressure cooking, after the reduced-pressure cooking process is completed, return to the step of determining whether the duration of the pressure cooking stage is greater than or equal to 30 minutes and continue to execute. If the top temperature in the electric pressure cooker is less than 120°C, further determine whether the top temperature in the electric pressure cooker is less than 118°C. If the top temperature in the electric pressure cooker is less than 118°C, control the heating device to heat at P=600W to achieve increased-pressure cooking. After the reduced-pressure cooking process is completed, return to the step of determining whether the duration of the pressure cooking stage is greater than or equal to 30 minutes and continue to execute. If the top temperature in the electric pressure cooker is greater than or equal to 118°C, control the heating device to maintain the current heating power for heating. After the cooking process (increased-pressure cooking or reduced-pressure cooking) is completed, return to the step of determining whether the duration of the pressure cooking stage is greater than or equal to 30 minutes and continue to execute.

[0119] Furthermore, if the duration of the pressure cooking stage is greater than or equal to 30 minutes, the heating device is controlled to stop heating, and the pressure reducing device is controlled to continue running, and it is determined whether the top temperature inside the electric pressure cooker is less than 99°C. If not, the process returns to the step of controlling the heating device to stop heating and controlling the pressure reducing device to continue dissipating heat. If so, cooking is terminated.

[0120] Figure 4 Schematic diagram of the cooking process of an electric pressure cooker in one embodiment. Figure 4 The cooking process of an electric pressure cooker includes the heating stage, the pressure increasing stage, the pressure cooking stage and the pressure releasing stage. The temperature inside the electric pressure cooker continues to rise during the heating and pressure increasing stages, tends to be relatively stable during the pressure cooking stage, and gradually decreases during the pressure releasing stage.

[0121] Figure 5 FIG1 is a schematic diagram showing the changes of pressure and temperature in an electric pressure cooker over time during the cooking process in one embodiment. Figure 5In the heating stage, the pressure in the electric pressure cooker is zero, while the temperature increases continuously over time. In the pressure-increasing stage, the pressure and temperature in the electric pressure cooker increase continuously over time. In the pressure cooking stage, the pressure-reducing device is controlled to operate continuously according to the target heat dissipation power, and the heating power of the heating device is dynamically controlled according to the current pressure and / or current temperature monitored in real time in the electric pressure cooker, so as to maintain the relative stability of the temperature in the electric pressure cooker and make the pressure in the electric pressure cooker dynamically fluctuate between the first preset pressure P1 and the second preset pressure P2. In this way, through the continuous heating of the heating device and the continuous and synchronous heat dissipation of the pressure-reducing device, the electric pressure cooker is cooled in one part and heated in another part at the same time, so that the inside of the electric pressure cooker is slightly boiled, thereby improving the cooking effect. In the pressure-reducing stage, the pressure and temperature in the electric pressure cooker are gradually reduced through the pressure-reducing operation until the pressure drops to zero when the pressure-reducing is completed.

[0122] Figure 6 FIG is a schematic diagram showing how power changes over time during a cooking process in one embodiment. Figure 6 In the heating stage, the heating device heats at a high power (1200W); in the pressure boosting stage, the heating device heats at a relatively high power (900W); in the pressure cooking stage, the pressure reducing device is controlled to operate continuously according to the target heat dissipation power; in the pressure reducing cooking process, the heating device is controlled to heat according to the first heating power, and in the pressure boosting cooking process, the heating device is controlled to heat according to the second heating power, wherein the first heating power is less than or equal to the target heat dissipation power; the target heat dissipation power is less than or equal to the second heating power; in the pressure relief stage, the pressure reducing device is controlled to dissipate heat according to the target heat dissipation power, and the heating device is controlled to stop operating to achieve continuous heat dissipation / pressure relief until the pressure relief is completed.

[0123] It should be understood that although Figure 2 and Figure 3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. In addition, Figure 2 and Figure 3 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The order of execution of these steps or stages is not necessarily one by one, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0124] In one embodiment, Figure 7As shown, a cooking device 700 for an electric pressure cooker is provided, comprising: a first cooking control module 701, a second cooking control module 702 and a cooking stage control module 703, wherein:

[0125] The first cooking control module 701 is configured to control the pressure reducing device to continuously operate according to the target heat dissipation power during the pressure cooking phase, and simultaneously obtain real-time monitoring operating parameters inside the electric pressure cooker; the operating parameters include at least one of the current pressure and the current temperature;

[0126] The second cooking control module 702 is used to control the heating power of the heating device according to the operating parameters; the pressure reducing device and the heating device are arranged opposite to each other inside the electric pressure cooker;

[0127] The cooking stage control module 703 is configured to enter the pressure release stage when the pressure cooking stage end condition is met.

[0128] In one embodiment, the heating power includes a first heating power and a second heating power; the second cooking control module 702 is also used to control the heating device to heat according to the first heating power when the current pressure is greater than or equal to the first preset pressure, and / or the current temperature is greater than or equal to the first preset temperature; when the current pressure is less than the second preset pressure, and / or the current temperature is less than the second preset temperature, control the heating device to heat according to the second heating power; the first preset pressure is greater than the second preset pressure; the first preset temperature is greater than the second preset temperature; the first heating power is less than or equal to the target heat dissipation power; the target heat dissipation power is less than or equal to the second heating power.

[0129] In one embodiment, the second cooking control module 702 is also used to control the heating device to maintain the current heating power for heating when the current pressure is less than the first preset pressure and greater than or equal to the second preset pressure, and / or the current temperature is less than the first preset temperature and greater than or equal to the second preset pressure.

[0130] In one embodiment, the second cooking control module 702 is also used to control the heating device to stop heating when the current pressure is greater than or equal to the third preset pressure, and / or the current temperature is greater than or equal to the third preset temperature; the third preset pressure is greater than the first preset pressure; the third preset temperature is greater than the third preset temperature.

[0131] In one embodiment, the second cooking control module 702 is also used to control the pressure reducing device to stop operating and control the heating device to heat according to the third heating power when the current pressure is less than or equal to the fourth preset pressure, and / or the current temperature is less than or equal to the fourth preset temperature; the fourth preset pressure is less than the second preset pressure; and the fourth preset temperature is less than the fourth preset temperature.

[0132] In one embodiment, the cooking stage control module 703 is further configured to determine that the pressure cooking stage end condition is met and enter the pressure release stage when the duration of the pressure cooking stage is greater than or equal to a preset duration.

[0133] In one embodiment, the first cooking control module 701 is further configured to obtain the weight of the food to be cooked, the type of the food to be cooked, and the cooking function; and determine the target heat dissipation power according to the weight of the food to be cooked, the type of the food to be cooked, and the cooking function.

[0134] In one embodiment, the first cooking control module 701 is further configured to determine the weight of the food to be cooked according to the temperature change rate and / or pressure change rate during the heating stage or the pressure increasing stage; or to detect the weight of the food to be cooked using a weight sensor.

[0135] In one embodiment, the cooking stage control module 703 is also used to control the heating device to heat according to the fourth heating power during the heating stage; when the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, enter the boosting stage; in the boosting stage, control the heating device to heat according to the fifth heating power; when the temperature in the electric pressure cooker is greater than or equal to the boosting temperature threshold, enter the pressure cooking stage.

[0136] In one embodiment, the cooking stage control module 703 is also used to control the heating device to stop heating and control the pressure reducing device to continue operating according to the pressure relief power during the pressure relief stage; when the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold, the cooking process ends.

[0137] The specific definition of the electric pressure cooker cooking device can be found in the definition of the electric pressure cooker cooking method above and will not be repeated here. Each module in the above-mentioned electric pressure cooker cooking device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor of the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0138] In one embodiment, an electric pressure cooker is provided, comprising an electric pressure cooker body, a pressure reducing device, a heating device and a controller, and also comprising a pressure detecting device and / or a temperature detecting device. The controller comprises a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in each method embodiment when executing the computer program.

[0139] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in each method embodiment are implemented.

[0140] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0141] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0142] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cooking method for an electric pressure cooker, characterized in that: The method comprises: During the pressure cooking stage, the heat dissipation device in the pressure reducing device is controlled to continuously operate according to the target heat dissipation power, and at the same time, real-time monitoring operating parameters inside the electric pressure cooker are obtained; the operating parameters include at least one of current pressure and current temperature; the pressure reducing device further includes an exhaust device, the heat dissipation device is used to dissipate heat, and the exhaust device is used to exhaust air inside the electric pressure cooker; The heating power of the heating device is controlled according to the operating parameters, wherein the heating device continuously heats; the pressure reducing device is arranged inside the electric pressure cooker opposite to the heating device to promote micro-boiling in the electric pressure cooker; When the end conditions of the pressure cooking stage are met, the pressure release stage begins; The heating power includes a first heating power and a second heating power; and controlling the heating power of the heating device according to the operating parameters includes: When the current pressure is greater than or equal to a first preset pressure, and / or the current temperature is greater than or equal to a first preset temperature, controlling the heating device to heat according to a first heating power; When the current pressure is lower than a second preset pressure, and / or the current temperature is lower than a second preset temperature, controlling the heating device to heat according to a second heating power; the first preset pressure is higher than the second preset pressure; The first preset temperature is greater than the second preset temperature; the first heating power is less than or equal to the target heat dissipation power; and the target heat dissipation power is less than or equal to the second heating power.

2. The method according to claim 1, characterized in that The controlling of the heating power of the heating device according to the operating parameters further comprises: When the current pressure is less than the first preset pressure and greater than or equal to the second preset pressure, and / or the current temperature is less than the first preset temperature and greater than or equal to the second preset pressure, the heating device is controlled to maintain the current heating power for heating.

3. The method according to claim 1, characterized in that The controlling of the heating power of the heating device according to the operating parameters further comprises: When the current pressure is greater than or equal to a third preset pressure, and / or the current temperature is greater than or equal to a third preset temperature, the heating device is controlled to stop heating; the third preset pressure is greater than the first preset pressure; the third preset temperature is greater than the third preset temperature.

4. The method according to claim 1, wherein The method further comprises: When the current pressure is less than or equal to a fourth preset pressure, and / or the current temperature is less than or equal to a fourth preset temperature, the pressure reducing device is controlled to stop running, and the heating device is controlled to heat according to a third heating power; the fourth preset pressure is less than the second preset pressure; and the fourth preset temperature is less than the fourth preset temperature.

5. The method according to claim 1, wherein The manner in which the pressure reducing device and the heating device are arranged relative to each other inside the electric pressure cooker includes: The pressure reducing device is arranged at the top of the electric pressure cooker, and the heating device is arranged at the bottom of the electric pressure cooker; or The pressure reducing device is arranged on the top and / or top side of the electric pressure cooker, and the heating device is arranged on the bottom and bottom side of the electric pressure cooker.

6. The method according to any one of claims 1 to 4, characterized in that When the pressure cooking stage end condition is met, the pressure release stage is entered, including: When the duration of the pressure cooking stage is greater than or equal to the preset duration, it is determined that the pressure cooking stage end condition is met and the pressure release stage is entered.

7. The method according to any one of claims 1 to 4, characterized in that The step of determining the target heat dissipation power includes: Obtain the weight, type and cooking function of the food to be cooked; The target heat dissipation power is determined according to the weight of the food to be cooked, the type of the food to be cooked, and the cooking function.

8. The method according to claim 7, characterized in that The step of obtaining the weight of the cooked food includes: Determine the weight of the food to be cooked based on the temperature change rate and / or pressure change rate during the heating phase or the pressure increasing phase; or The weight of the food being cooked is detected by a weight sensor.

9. The method according to any one of claims 1 to 4, characterized in that The method further comprises: During the heating phase, the heating device is controlled to perform heating according to a fourth heating power; When the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, the pressure is increased. During the boosting phase, controlling the heating device to perform heating according to a fifth heating power; When the temperature in the electric pressure cooker is greater than or equal to the pressure boosting temperature threshold, the pressure cooking stage is entered.

10. The method according to any one of claims 1 to 4, characterized in that The method further comprises: During the pressure relief stage, the heating device is controlled to stop heating, and the pressure reduction device is controlled to continue operating according to the pressure relief power; When the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold, the cooking process ends.

11. A cooking device for an electric pressure cooker, characterized in that: The device comprises: a first cooking control module, configured to control a heat dissipation device in the pressure reducing device to continuously operate according to a target heat dissipation power during a pressure cooking phase, and simultaneously obtain real-time monitored operating parameters within the electric pressure cooker; the operating parameters including at least one of a current pressure and a current temperature; the pressure reducing device further comprising an exhaust device, the heat dissipation device being configured to dissipate heat, and the exhaust device being configured to exhaust air within the electric pressure cooker; a second cooking control module, configured to control the heating power of the heating device according to the operating parameters, wherein the heating device continuously heats; and the pressure reducing device is disposed opposite to the heating device inside the electric pressure cooker to promote micro-boiling in the electric pressure cooker; The cooking stage control module is used to enter the pressure relief stage when the pressure cooking stage end condition is met; The heating power includes a first heating power and a second heating power; the second cooking control module is used to control the heating device to heat according to the first heating power when the current pressure is greater than or equal to the first preset pressure, and / or the current temperature is greater than or equal to the first preset temperature; when the current pressure is less than the second preset pressure, and / or the current temperature is less than the second preset temperature, control the heating device to heat according to the second heating power; the first preset pressure is greater than the second preset pressure; the first preset temperature is greater than the second preset temperature; the first heating power is less than or equal to the target heat dissipation power; the target heat dissipation power is less than or equal to the second heating power.

12. An electric pressure cooker comprising an electric pressure cooker body, a pressure reducing device, a heating device, and a controller, and further comprising a pressure detection device and / or a temperature detection device, wherein the controller comprises a memory and a processor, wherein the memory stores a computer program, and wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 10 are implemented.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented.

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