CN113693440B

CN113693440B - Cooking method and device of electric pressure cooker, electric pressure cooker and storage medium

Info

Publication number: CN113693440B
Application number: CN202111002060.3A
Authority: CN
Inventors: 张力文; 孔进喜; 张继尧; 王江南; 陈崇得
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-04-29
Anticipated expiration: 2041-08-30
Also published as: CN113693440A

Abstract

The application relates to a cooking method and device of an electric pressure cooker, the electric pressure cooker and a storage medium. The method comprises the following steps: in the pressure cooking stage, acquiring real-time monitored operation parameters in the electric pressure cooker; when the operation parameters meet the pressure reduction cooking condition, controlling the heating device to heat according to the first heating power, and controlling the pressure reduction device to dissipate heat according to the first heat dissipation power; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker; when the operation parameters meet the boosting cooking condition, controlling the heating device to heat according to the second heating power, and controlling the voltage reduction device to dissipate heat according to the second heat dissipation power; the second heating power is greater than the second heat dissipation power; and when the exit condition of the pressure cooking stage is met, entering a pressure relief stage. By adopting the method, the cooking effect can be improved under the same cooking time or the cooking time can be shortened under the same cooking effect.

Description

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

Technical Field

The application relates to the technical field of kitchen appliances, in particular to a cooking method and device of an electric pressure cooker, the electric pressure cooker and a storage medium.

Background

With the pace of life becoming faster and faster, people's demand for quick cooking also shows an increasing trend, and one of the cooking appliances realizing quick cooking is an electric pressure cooker. At present, the development of electric pressure cooker has entered into the bottleneck stage, and along with the increase of culinary art pressure, it is longer and longer when the pressure release on the one hand to lead to long being difficult to further shorten when holistic culinary art, on the other hand is difficult to realize the boiling because electric pressure cooker is inside, thereby leads to the culinary art effect to be difficult to further promote. Therefore, the control mode of the existing electric pressure cooker has room for further improvement.

Disclosure of Invention

In view of the above, there is a need to provide a cooking method and device for an electric pressure cooker, an electric pressure cooker and a storage medium, which can improve the cooking effect or shorten the cooking time under the same cooking time.

A cooking method of an electric pressure cooker, the method comprising:

in the pressure cooking stage, acquiring real-time monitored operation parameters in the electric pressure cooker;

when the operating parameters meet the pressure reduction cooking conditions, controlling the heating device to heat according to first heating power, and controlling the pressure reduction device to dissipate heat according to first heat dissipation power; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker;

when the operating parameters meet the boosting cooking condition, controlling the heating device to heat according to second heating power, and controlling the voltage reduction device to dissipate heat according to second heat dissipation power; the second heating power is greater than the second heat dissipation power;

and when the exit condition of the pressure cooking stage is met, entering a pressure relief stage.

In one embodiment, the operating parameter includes at least one of a current pressure and a current temperature; the reduced-pressure cooking condition comprises that 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; the boosting cooking condition comprises that the current pressure is less than or equal to a second preset pressure, and/or the current temperature is less than or equal to a second preset temperature; the second preset pressure is smaller than the first preset pressure; the second preset temperature is less than the first preset temperature.

In one embodiment, the method further comprises:

and when the current pressure is greater than the second preset pressure and less than the first preset pressure and/or the current temperature is greater than the second preset temperature and less than the first preset temperature, controlling the heating device to maintain the current heating power for heating and controlling the pressure reduction device to maintain the current heat dissipation power for heat dissipation.

In one embodiment, the pressure cooking stage exit condition comprises:

the pressure reduction cooking times in the pressure cooking stage reach preset times; or the like, or, alternatively,

the duration of the pressure cooking phase reaches a preset duration.

In one embodiment, the preset number of times is positively correlated with the weight of the cooked object, and/or the preset number of times is negatively correlated with a preset pressure, wherein the preset pressure comprises the first preset pressure or the second preset pressure.

In one embodiment, the preset time period is positively correlated with the weight of the cooking object, and/or the preset time period is negatively correlated with the preset pressure, wherein the preset pressure comprises the first preset pressure or the second preset pressure.

In one embodiment, the determining the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature includes:

acquiring the weight, the type and the cooking function of the cooking object;

and determining the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature according to the weight of the cooking object, the type of the cooking object and the cooking function.

In one embodiment, the first preset pressure and the second preset pressure are positively correlated with the cooking time of the pressure cooking stage; the first preset temperature and the second preset temperature are in positive correlation with the cooking time of the pressure cooking stage.

In one embodiment, the first preset pressure and the second preset pressure are inversely related to the cooking time of the pressure cooking stage; and/or the first preset temperature and the second preset temperature are inversely related to the cooking time of the pressure cooking stage.

In one embodiment, when the operating parameter meets the reduced-pressure cooking condition, the heating device is controlled to heat according to the first heating power, and the reduced-pressure device is controlled to dissipate heat according to the first heat dissipation power; the first heating power is smaller than the first heat dissipation power, and includes:

when the operating parameters meet the reduced-pressure cooking conditions, controlling the cooking device to perform buffer cooking according to first buffer cooking power, and starting a first timer; the cooking device comprises the heating device and the pressure reduction device;

when the timing duration of the first timer reaches a first buffering cooking duration, controlling the heating device to heat according to first heating power, and controlling the voltage reduction device to dissipate heat according to first heat dissipation power;

when the operating parameter satisfies the pressure-rising cooking condition, the heating device is controlled to heat according to the second heating power, and the pressure-reducing device is controlled to dissipate heat according to the second heat dissipation power, including:

when the operating parameters meet the pressure-boosting cooking conditions, controlling the cooking device to perform buffering cooking according to second buffering cooking power, and starting a second timer;

and when the timing duration of the second timer reaches a second buffering cooking duration, controlling the heating device to heat according to a second heating power, and controlling the voltage reduction device to dissipate heat according to a second heat dissipation power.

In one embodiment, the pressure reduction device comprises a heat dissipation device and an exhaust device; controlling the voltage reduction device to dissipate heat according to second heat dissipation power, comprising:

controlling the heat dissipation device to dissipate heat according to the second heat dissipation power;

and controlling the exhaust device to stop running.

In one embodiment, the method further comprises:

in the heating stage, controlling a heating device to heat according to a third heating power;

when the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, entering a boosting stage;

in the boosting stage, controlling the heating device to heat according to fourth heating power;

and entering a pressure cooking stage when the temperature in the electric pressure cooker is greater than or equal to the pressure-boosting temperature threshold value.

In one embodiment, the method further comprises:

in the pressure relief stage, controlling the heating device to stop heating, and controlling the pressure reduction device to continuously operate according to the pressure relief power;

and when the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold value, finishing the cooking process.

A cooking device of an electric pressure cooker, the device comprising:

the acquisition module is used for acquiring real-time monitored operation parameters in the electric pressure cooker in a pressure cooking stage;

the first cooking control module is used for controlling the heating device to heat according to first heating power and controlling the pressure reduction device to dissipate heat according to first heat dissipation power when the operating parameters meet the pressure reduction cooking condition; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker;

the second cooking control module is used for controlling the heating device to heat according to second heating power and controlling the voltage reduction device to dissipate heat according to second heat dissipation power when the operating parameters meet the pressure boosting cooking condition; the second heating power is greater than the second heat dissipation power;

and the cooking stage control module is used for entering a pressure relief stage when the pressure cooking stage exit condition is met.

An electric pressure cooker comprises an electric pressure cooker body, a pressure reducing device, a heating device and a controller, and further comprises at least one of a pressure detecting device and a temperature detecting device, wherein the controller comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the following steps:

A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:

According to the cooking method and device of the electric pressure cooker, the electric pressure cooker and the storage medium, in the pressure cooking stage of the electric pressure cooker, the real-time monitored operation parameters in the electric pressure cooker are dynamically obtained, when the real-time monitored operation parameters meet the pressure reduction cooking condition, the pressure reduction device is controlled to dissipate heat according to the first heat dissipation power, the heating device is controlled to heat according to the first heating power smaller than the first heat dissipation power, so that pressure reduction cooking is achieved, when the real-time monitored operation parameters meet the pressure increase cooking condition, the pressure reduction device is controlled to dissipate heat according to the second heat dissipation power, and the heating device is controlled to heat according to the second heating power larger than the second heat dissipation power, so that pressure increase cooking is achieved. Like this, operating parameter dynamic adjustment heating device's heating power and pressure relief device's radiating power based on dynamic monitoring to realize the alternative control to the inside pressure boost of electric pressure cooker and step down, make the inside pressure of electric pressure cooker change, thereby make the interior little boiling that appears of electric pressure cooker, with improve the culinary art effect of electric pressure cooker during the same culinary art is long down, perhaps, shorten the culinary art time under the same culinary art effect.

Drawings

FIG. 1 is a schematic view of the electric pressure cooker in one embodiment;

FIG. 2 is a schematic flow chart of a cooking method of the electric pressure cooker in one embodiment;

FIG. 3 is a schematic view of a cooking method of the electric pressure cooker in one embodiment;

FIG. 4 is a schematic view of a cooking process of the electric pressure cooker in one embodiment;

FIG. 5 is a schematic view of the pressure, temperature, power within the electric pressure cooker over time during cooking in one embodiment;

FIG. 6 is a schematic view of the pressure, temperature, power within the electric pressure cooker over time during cooking in another embodiment;

FIG. 7 is a schematic view of the pressure, temperature, power within the electric pressure cooker over time during cooking in yet another embodiment;

FIG. 8 is a schematic view of the pressure, temperature, power changes over time within the electric pressure cooker during the pressure cooking stage when adding a buffer cooking process in one embodiment;

fig. 9 is a structural block diagram of a cooking device of the electric pressure cooker in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The cooking method of the electric pressure cooker can be applied to the electric pressure cooker shown in the figure 1. Referring to fig. 1, the electric pressure cooker includes an electric pressure cooker body, a controller, a heating device and a pressure reducing device, and further includes at least one of a pressure detecting device and a temperature detecting device. The controller is used for realizing the cooking method of the electric pressure cooker provided in one or more embodiments of the application. The temperature detection device is used for monitoring the temperature inside the electric pressure cooker, specifically the temperature at the top inside the electric pressure cooker, and the pressure detection device is used for monitoring the pressure inside the electric pressure cooker.

In one embodiment, the number of the pressure reduction devices is one or more, at least one pressure reduction device is a heat dissipation device for realizing rapid pressure reduction through accelerated cooling, and one pressure reduction device is an exhaust device such as an exhaust valve. In the pressure-raising cooking process in the pressure cooking stage, the pressure-reducing device as the exhaust device does not operate, the pressure-reducing device as the heat-radiating device radiates heat according to the heat-radiating power in each embodiment, and in other cooking processes in the pressure cooking stage, the pressure-reducing device as the exhaust device may not operate, and may also cooperate with the pressure-reducing device as the heat-radiating device to assist pressure-reducing/heat-radiating, in this case, each pressure-reducing device cooperates to achieve the effect of radiating according to the heat-radiating power in each embodiment.

In one embodiment, the pressure reducing device is arranged at the top in the electric pressure cooker. It can be understood that the pressure reducing device is not limited to be arranged at the top of the electric pressure cooker, and can also be arranged at other positions as long as the pressure reducing device is suitable for the cooking method of the electric pressure cooker provided by the application, and the pressure reducing device is not particularly limited herein.

In one embodiment, as shown in fig. 2, a cooking method of an electric pressure cooker is provided, which is described by taking the method as an example of being applied to the controller in fig. 1, and comprises the following steps:

step 202, in the pressure cooking stage, obtaining the real-time monitored operation parameters in the electric pressure cooker.

The whole cooking process of the electric pressure cooker comprises a heating stage, a boosting stage, a pressure cooking stage and a pressure relief stage in sequence, and a detection stage can be included before the heating stage. The operating parameter comprises at least one of a current temperature and a current pressure inside the electric pressure cooker.

Specifically, after entering the pressure cooking stage from the boosting stage, the controller acquires the current pressure inside the electric pressure cooker monitored in real time by the pressure detection device and/or acquires the current temperature inside the electric pressure cooker monitored in real time by the temperature detection device.

Step 204, when the operation parameters meet the pressure reduction cooking condition, controlling the heating device to heat according to the first heating power, and controlling the pressure reduction device to dissipate heat according to the first heat dissipation power; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker.

The pressure-reducing cooking condition is a condition or basis for judging whether pressure-reducing cooking is performed or not in the pressure cooking stage, and specifically may include that 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. The first heating power and the first heat dissipation power may be customized according to empirical values/experimental data, for example, the first heating power is zero, the first heat dissipation power is 400W, and is not specifically limited herein, for example, the first heating power and the first heat dissipation power may be set to other power values.

Specifically, the controller dynamically determines whether the real-time acquired operating parameters meet the reduced-pressure cooking conditions during the pressure cooking stage. When the operation parameters meet the pressure reduction cooking conditions, the controller controls the heating device to heat according to the first heating power, and controls the pressure reduction device to dissipate heat according to the first heat dissipation power larger than the first heating power, so that pressure reduction cooking is realized. Wherein, the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker.

In one embodiment, the heating device and the pressure reducing device are respectively arranged at the bottom and the top of the interior of the electric pressure cooker. It is understood that the heating device and the pressure reducing device may also be disposed at other positions inside the electric pressure cooker, and are not specifically limited herein, as long as the heating device and the pressure reducing device are adapted to the cooking method of the electric pressure cooker in one or more embodiments of the present application, for example, the heating device may also be disposed at the bottom and the side of the inside of the electric pressure cooker, and the pressure reducing device may also be disposed at the top and the side of the inside of the electric pressure cooker.

In one embodiment, during the pressure-reducing cooking process, the pressure-reducing device preferably dissipates heat according to the maximum heat dissipation power, the first heating power of the heating device is any value within the range of 0 to 50% of the rated power of the heating device, and the heating device preferably does not work.

Step 206, when the operation parameters meet the pressure-increasing cooking condition, controlling the heating device to heat according to the second heating power, and controlling the voltage-reducing device to dissipate heat according to the second heat dissipation power; the second heating power is greater than the second heat dissipation power.

The pressure-boosting cooking condition is a condition or basis for judging whether pressure-boosting cooking is performed or not in the pressure cooking stage, and specifically may include that the current pressure is less than or equal to a second preset pressure, and/or the current temperature is less than or equal to a second preset temperature. The second heating power and the second heat dissipation power may be customized according to empirical values/experimental data, for example, the second heating power is 800W, and the second heat dissipation power is zero, which is not specifically limited herein, for example, the second heating power and the second heat dissipation power may be set to other power values.

Specifically, the controller dynamically determines whether the real-time acquired operating parameters satisfy the boost cooking conditions during the pressure cooking stage. And when the operation parameters meet the boosting cooking condition, the controller controls the heating device to heat according to the second heating power and controls the voltage reduction device to dissipate heat according to the second heat dissipation power smaller than the second heating power so as to realize boosting cooking.

In one embodiment, the pressure-reducing device is preferably not operated during the pressure-increasing cooking, the second heating power of the heating device is any value within a range of 50% to 100% of the rated power (maximum heating power) of the heating device, and the second heating power is preferably the rated power.

And step 208, entering a pressure relief stage when the exit condition of the pressure cooking stage is met.

The pressure cooking stage exit condition is a condition or basis for judging whether to exit/end the pressure cooking stage and enter the pressure relief stage. Specifically, the controller dynamically judges whether the pressure cooking stage exit condition is met or not in the pressure cooking stage, when the pressure cooking stage exit condition is judged to be met, the pressure cooking stage exits and the pressure relief stage enters, if the pressure cooking stage exit condition is judged not to be met, the heating device and the pressure reduction device are controlled to carry out pressure reduction cooking or pressure increase cooking according to the real-time monitoring operation parameters, and when the pressure cooking stage exit condition is met, the pressure cooking stage exits and the pressure relief stage enters.

According to the cooking method of the electric pressure cooker, in the pressure cooking stage of the electric pressure cooker, the operation parameters monitored in real time in the electric pressure cooker are dynamically acquired, when the operation parameters monitored in real time meet the pressure reduction cooking condition, the pressure reduction device is controlled to dissipate heat according to the first heat dissipation power, the heating device is controlled to heat according to the first heating power smaller than the first heat dissipation power, so that pressure reduction cooking is achieved, when the operation parameters monitored in real time meet the pressure increase cooking condition, the pressure reduction device is controlled to dissipate heat according to the second heat dissipation power, and the heating device is controlled to heat according to the second heating power larger than the second heat dissipation power, so that pressure increase cooking is achieved. Like this, operating parameter dynamic adjustment heating device's heating power and pressure relief device's radiating power based on dynamic monitoring to realize the alternative control to the inside pressure boost of electric pressure cooker and step down, make the inside pressure of electric pressure cooker change, thereby make the interior little boiling that appears of electric pressure cooker, with improve the culinary art effect of electric pressure cooker during the same culinary art is long down, perhaps, shorten the culinary art time under the same culinary art effect.

In one embodiment, the operating parameter includes at least one of a current pressure and a current temperature; the reduced-pressure cooking condition comprises that 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; the pressure-boosting cooking condition comprises that the current pressure is less than or equal to a second preset pressure, and/or the current temperature is less than or equal to a second preset temperature; the second preset pressure is smaller than the first preset pressure; the second preset temperature is less than the first preset temperature.

The first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature can be customized according to experience values, and can also be dynamically determined according to the weight of the cooked object, the type of the cooked object and the cooking function during cooking, for example, the first preset temperature is 118 ℃, the second preset temperature is 107 ℃, or for example, when the cooking function is porridge cooking, the first preset pressure is any value in an interval [40, 70kPa (pressure intensity unit, kilopascal) ]. The first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature can also be dynamically changed along with the cooking time length in the pressure cooking stage. The second preset pressure is smaller than the first preset pressure; the second preset temperature is less than the first preset temperature.

Specifically, in the pressure cooking stage, the controller acquires the current temperature and/or the current pressure monitored in real time in the electric pressure cooker, 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, it is determined that a pressure reduction cooking condition is met, the cooking device is controlled to perform pressure reduction cooking, when the current pressure is less than or equal to a second preset pressure and/or the current temperature is less than or equal to a second preset temperature, it is determined that a pressure increase cooking condition is met, and the cooking device is controlled to perform pressure increase cooking. Wherein, the cooking device comprises a heating device and a heat dissipation device.

In one embodiment, the second preset pressure and the first preset pressure satisfy the following mapping relationship: p2 ≦ 0.8P1 (relative to atmospheric pressure), where P2 represents the second preset pressure and P1 represents the first preset pressure.

In one embodiment, the second preset temperature and the first preset temperature satisfy the following mapping relationship: T1-T2 is more than or equal to 5 ℃, wherein T2 represents a second preset pressure, and T1 represents a first preset pressure.

In the embodiment, the cooking device is controlled to perform pressure reduction cooking or pressure boosting cooking according to the current pressure and/or the current temperature monitored in the electric pressure cooker in real time, so that micro-boiling in the electric pressure cooker is realized, and the cooking effect is improved.

In one embodiment, the cooking method of the electric pressure cooker further comprises the following steps: and when the current pressure is greater than the second preset pressure and less than the first preset pressure and/or the current temperature is greater than the second preset temperature and less than the first preset temperature, controlling the heating device to maintain the current heating power for heating and controlling the pressure reduction device to maintain the current heat dissipation power for heat dissipation.

In one embodiment, when exiting the pressure-increasing stage and entering the pressure cooking stage, if the current pressure in the electric pressure cooker is greater than the second preset pressure and less than the first preset pressure and/or the current temperature in the electric pressure cooker is greater than the second preset temperature and less than the first preset temperature, the controller controls the heating device to heat according to the heating power of the pressure-increasing stage and controls the heat-dissipating device to stop dissipating heat.

In one embodiment, in the pressure cooking stage, if the current pressure in the electric pressure cooker is determined to be greater than the second preset pressure and less than the first preset pressure during the pressure reduction cooking process, and/or the current temperature in the electric pressure cooker is higher than the second preset temperature and lower than the first preset temperature, the controller controls the heating device to heat according to the first heating power, and controlling the pressure reduction device to dissipate heat according to the first heat dissipation power, and accordingly, if in the pressure boosting cooking process, judging that the current pressure in the electric pressure cooker is greater than the second preset pressure and less than the first preset pressure, and/or the current temperature in the electric pressure cooker is higher than a second preset temperature and lower than a first preset temperature, the controller controls the heating device to heat according to the second heating power, and controls the pressure reduction device to dissipate heat according to the first heat dissipation power.

In the above embodiment, if the current pressure is within the pressure range determined by the second preset pressure and the first preset pressure, and/or the current temperature is within the temperature range determined by the second preset temperature and the first preset temperature, the pressure reducing device and the heating device are controlled to maintain the current operating state, so as to avoid frequent switching of the operating power between the pressure reducing device and the heating device due to the change of the pressure and/or the temperature inside the electric pressure cooker, and thus the service life of the electric pressure cooker can be prolonged.

In one embodiment, the pressure cooking stage exit condition comprises: the pressure reduction cooking times in the pressure cooking stage reach preset times; or the duration of the pressure cooking stage reaches a preset duration.

The pressure-reducing cooking times refer to the times of pressure-reducing cooking performed by controlling the cooking device in the pressure cooking stage, and the initial value of the pressure-reducing cooking times is 0 and is continuously updated along with the alternation of pressure-reducing cooking and pressure-increasing cooking. The preset times can be customized according to experience values, specifically can be any numerical value in the interval [2, 30], such as 4, and can also be determined according to the weight of the cooked object cooked at the time. The preset time period can be customized according to an empirical value, and specifically can be any value in the interval [5, 120min ], such as 30min (minutes), and can also be determined according to the weight of the cooked object cooked at the time.

Specifically, in the pressure cooking stage, after the pressure-reducing cooking process is completed each time, 1 is added to the pressure-reducing cooking frequency to update the pressure-reducing cooking frequency, and if the updated pressure-reducing cooking frequency reaches a preset frequency, it is determined that the pressure cooking stage exit condition is satisfied. Or counting the duration of the pressure cooking stage from the time of entering the pressure cooking stage, and judging that the exit condition of the pressure cooking stage is met when the duration of the pressure cooking stage reaches the preset duration.

In the above embodiment, whether the pressure cooking stage exit condition is met or not is judged according to the pressure reduction cooking times or duration of the pressure cooking stage, so that the pressure cooking stage exits and the pressure relief stage enters when the pressure cooking stage exit condition is judged to be met, and the cooking effect is improved.

In one embodiment, the preset number of times is positively correlated with the weight of the cooking object, and/or the preset number of times is negatively correlated with the preset pressure, and the preset pressure comprises a first preset pressure or a second preset pressure.

Specifically, the controller determines a preset number of times in the exit condition of the pressure cooking stage according to at least one of the weight of the cooking object, the first preset pressure and the second preset pressure. The larger the weight of the cooking object is, the larger the preset times are, and the smaller the first preset pressure/the second preset pressure is, the larger the preset times are.

In one embodiment, the controller determines the preset number of times in the pressure cooking stage exit condition based on at least one of the weight of the cooking item, the first preset temperature, and the second preset temperature. The larger the weight of the cooking object is, the larger the preset times are, and the smaller the first preset temperature/the second preset temperature is, the larger the preset times are. It is to be understood that the controller may also determine the preset number of times in the pressure cooking stage exit condition based on at least one of the weight of the cooking object, the first preset temperature (second preset temperature) and the first preset pressure (second preset pressure).

In the above embodiment, the preset times in the exit condition of the pressure cooking stage are changed along with the weight of the cooking object and/or the size of the first preset pressure (the second preset pressure), so that whether the pressure cooking stage exits or not can be accurately judged, and the cooking effect can be improved.

In one embodiment, the predetermined time period is positively correlated to the weight of the cooking product, and/or the predetermined time period is negatively correlated to a predetermined pressure, the predetermined pressure comprising a first predetermined pressure or a second predetermined pressure.

Specifically, the controller determines a preset duration in the pressure cooking stage exit condition according to at least one of the weight of the cooking item, the first preset pressure and the second preset pressure. The larger the weight of the cooking object is, the longer the preset time is, and the smaller the first preset pressure/the second preset pressure is, the longer the preset time is.

In one embodiment, the controller determines the preset duration in the pressure cooking stage exit condition based on at least one of the weight of the cooking item, the first preset temperature, and the second preset temperature. The larger the weight of the cooking object is, the longer the preset time is, and the smaller the first preset temperature/the second preset temperature is, the longer the preset time is. It is to be understood that the controller may also determine the preset duration in the pressure cooking stage exit condition based on at least one of the weight of the cooking item, the first preset temperature (second preset temperature) and the first preset pressure (second preset pressure).

In the above embodiment, the preset duration in the exit condition of the pressure cooking stage changes with the weight of the cooking object and/or the size of the first preset pressure (the second preset pressure), so that whether the pressure cooking stage exits or not can be accurately judged, and the cooking effect can be improved.

In one embodiment, the determining the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature includes: acquiring the weight, the type and the cooking function of the cooking object; according to the weight of the cooking object, the type of the cooking object and the cooking function, determining a first preset pressure, a second preset pressure, a first preset temperature and a second preset temperature.

Wherein, the weight of the cooking object refers to the weight of the cooking object currently cooked in the electric pressure cooker. The cooking species refers to the types of cooking matters currently cooked in the electric pressure cooker. The cooking function refers to a function of cooking at the time, such as cooking rice, cooking porridge, cooking soup, or the like.

Specifically, after entering the pressure cooking stage, or at any time before entering the pressure cooking stage in the current cooking process, the controller obtains the weight, the type, and the cooking function of the current cooking product, and determines the first preset pressure and the second preset pressure, and/or the first preset temperature and the second preset temperature according to the obtained weight, the type, and the cooking function of the current cooking product. It can be understood that if the operation parameter includes the current temperature, the first preset temperature and the second preset temperature are determined according to the above-described method, if the operation parameter includes the current pressure, the first preset pressure and the second preset pressure are determined according to the above-described method, and if the operation parameter includes the current pressure and the current temperature, the first preset pressure, the second preset pressure, the first preset temperature, and the second preset temperature are simultaneously determined according to the above-described method.

In one embodiment, the controller queries the pre-configured mapping relation table according to the weight of the cooking object, the type of the cooking object and the cooking function of the current cooking to obtain the corresponding first preset pressure and second preset pressure, and/or the first preset temperature and second preset temperature.

In one embodiment, the weight of the cooking object, the type of the cooking object and the cooking function can be determined correspondingly by detecting the input/selection of the user, and can also be determined in an automatic identification mode. The automatic identification of the weight of the cooking product comprises detection by a weight sensor or determination from the rate of temperature change and/or pressure change of the heating or pressure rise phase, the rate of temperature change/pressure change being inversely related to the weight of the cooking product. Taking the temperature change rate of the heating stage as an example, the slope of the temperature change along with the time in the heating stage is determined as the temperature change rate, specifically, within a fixed heating time length, the more obvious the temperature change/the larger the temperature difference, the faster the temperature change rate is indicated, and within the fixed temperature difference, the shorter the required heating time length is, the faster the temperature change rate is indicated.

In the above embodiment, according to the weight of the cooking object, the type of the cooking object, and the cooking function of the current cooking, the first preset pressure and the second preset pressure in the pressure cooking stage are dynamically determined, and/or the first preset temperature and the second preset temperature are dynamically determined, so that the pressure cooking device is controlled to alternately perform pressure reduction cooking and pressure increase cooking in the pressure cooking stage according to the determined first preset pressure and second preset pressure, and/or the first preset temperature and the second preset temperature, and a better cooking effect can be achieved in the same cooking time, or the cooking time can be shortened in the same cooking effect.

In one embodiment, the first preset pressure and the second preset pressure are positively correlated with the cooking time of the pressure cooking stage; the first preset temperature and the second preset temperature are positively correlated with the cooking time of the pressure cooking stage.

Specifically, the longer the cooking time of the pressure cooking stage is, the larger the first preset pressure and the second preset pressure are, so that the first preset pressure and the second preset pressure are in positive correlation with the cooking time of the pressure cooking stage. The longer the cooking time in the pressure cooking stage is, the larger the first preset temperature and the second preset temperature are, so that the first preset temperature, the second preset temperature and the cooking time in the pressure cooking stage are in positive correlation.

In one embodiment, the initial values of the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature are determined by the weight of the cooked object, the type of the cooked object and the cooking function of the current cooking.

In the above embodiment, the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature are changed along with the cooking time, and are all increased along with the cooking time, so that the cooking effect can be improved under the same cooking time.

Specifically, the longer the cooking time of the pressure cooking stage, the smaller the first preset pressure and the second preset pressure are, so that the first preset pressure and the second preset pressure are in negative correlation with the cooking time of the pressure cooking stage. The longer the cooking time of the pressure cooking stage is, the smaller the first preset temperature and the second preset temperature are, so that the first preset temperature and the second preset temperature are in negative correlation with the cooking time of the pressure cooking stage.

In one embodiment, during the temperature cooking stage, the first preset temperature and the second preset temperature are decreased by 1 ℃ per cycle, and/or the first preset pressure and the second preset pressure are decreased by 1kPa per cycle. For example, the first preset temperature for determining the first pressure reduction cooking is 118 ℃, the corresponding second preset temperature is 107 ℃, the first preset temperature for determining the second pressure reduction cooking is 117 ℃, the corresponding second preset temperature is 106 ℃, and so on, and the first preset temperature and the second preset temperature are continuously adjusted, so that the pressure relief time in the pressure relief stage can be shortened.

In the above embodiment, the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature are changed along with the cooking time, and are all smaller and smaller along with the cooking time, so that the cooking effect is ensured, the pressure inside the electric pressure cooker is lower and lower, the pressure relief time can be shortened, and the cooking time can be shortened while the cooking effect is ensured.

In one embodiment, step 204 comprises: when the operation parameters meet the reduced-pressure cooking conditions, controlling the cooking device to perform buffer cooking according to the first buffer cooking power, and starting a first timer; the cooking device comprises a heating device and a pressure reduction device; when the timing duration of the first timer reaches the first buffering cooking duration, controlling the heating device to heat according to the first heating power, and controlling the voltage reduction device to dissipate heat according to the first heat dissipation power; step 206, comprising: when the operation parameters meet the pressure-boosting cooking conditions, controlling the cooking device to perform buffering cooking according to second buffering cooking power, and starting a second timer; and when the timing duration of the second timer reaches the second buffering cooking duration, controlling the heating device to heat according to the second heating power, and controlling the voltage reduction device to dissipate heat according to the second heat dissipation power.

The buffering cooking time length refers to the duration of single buffering cooking of the cooking device, and both the first buffering cooking time length and the second buffering cooking time length can be defined based on experience values, the first buffering cooking time length can be specifically any numerical value in an interval [0, 5min ], preferably any numerical value in an interval [0, 1min ], the second buffering cooking time length can be specifically any numerical value in an interval [0, 5min ], preferably any numerical value in an interval [0, 60s ], and for example, both the first buffering cooking time length and the second buffering cooking time length are 30s (seconds).

Specifically, when judging that the operating parameter satisfies the step-down culinary art condition, control cooking device and cushion the culinary art according to first buffering culinary art power, after buffering culinary art process is accomplished, control cooking device again and carry out the step-down culinary art according to step-down culinary art power, also be control heating device and heat according to first heating power promptly to and control step-down device dispels the heat according to the first heat dissipation power that is greater than first heating power, in order to realize the step-down culinary art. When the operating parameters meet the pressure-boosting cooking condition, the cooking device is controlled to perform buffering cooking according to the second buffering cooking power, after the buffering cooking process is completed, the cooking device is controlled to perform pressure-boosting cooking according to the pressure-boosting cooking power, namely, the heating device is controlled to perform heating according to the second heating power, and the pressure-reducing device is controlled to perform heat dissipation according to the second heat dissipation power smaller than the second heating power, so that pressure-boosting cooking is realized, circulation is performed according to the above steps, and the pressure-reducing stage is entered when the pressure-cooking stage exit condition is met.

In one embodiment, the first buffered cooking power and/or the first buffered cooking power is zero. Specifically, during the cushion cooking process before the pressure-reducing cooking, the pressure-reducing device and the heating device are controlled not to operate, and/or during the cushion cooking process before the pressure-increasing cooking, the pressure-reducing device and the heating device are controlled not to operate.

In the embodiment, the sensor, the protection device and other components inside the electric pressure cooker generally have hysteresis, so that the buffer process is set in the alternative switching process of the pressure reduction cooking and the pressure boosting cooking, the problem of inaccurate pressure reduction/pressure reduction cooking control caused by untimely pressure monitoring and/or temperature monitoring can be avoided, the fault tolerance of the cooking mode can be improved, and the adaptability to different working conditions is improved.

In one embodiment, the pressure reduction device comprises a heat dissipation device and an exhaust device; control voltage step-down device dispels the heat according to second heat dissipation power, includes: controlling the heat dissipation device to dissipate heat according to the second heat dissipation power; and controlling the exhaust device to stop running.

Specifically, the pressure reduction device includes a heat dissipation device and an exhaust device. And in the boosting cooking process, the controller controls the heat dissipation device to dissipate heat according to the second heat dissipation power and controls the exhaust device to stop operating.

In the above embodiment, during the pressure-increasing cooking, the operation of the pressure-decreasing device as the air-discharging device is controlled to be stopped, so as to improve the pressure-increasing cooking effect.

In one embodiment, the cooking method of the electric pressure cooker further comprises the following steps: in the heating stage, controlling a heating device to heat according to a third heating power; when the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, entering a boosting stage; in the boosting stage, controlling a heating device to heat according to fourth heating power; and entering a pressure cooking stage when the temperature in the electric pressure cooker is greater than or equal to the pressure-boosting temperature threshold value.

The heating temperature threshold is used for judging whether to exit from the heating stage and enter the boosting stage. The boost temperature threshold is a temperature threshold used for judging whether to exit the boost stage and enter the pressure cooking stage. The third heating power, such as 1200W, the fourth heating power, such as 900W, the heating temperature threshold, such as 90 ℃ (celsius), and the boost temperature threshold, such as 115 ℃, may all be customized according to empirical/experimental data.

Specifically, in the heating stage, the controller controls the heating device to heat according to the third heating power, the temperature in the electric pressure cooker is monitored in real time through the temperature sensor, when the monitored temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, the fact that the water temperature in the electric pressure cooker is close to boiling at the moment is shown, micro-pressure begins to exist in the electric pressure cooker, and therefore the heating stage is exited and the boosting stage is entered. In the boosting stage, the controller controls the heating device to heat according to the fourth heating power, monitors the temperature in the electric pressure cooker in real time through the temperature sensor, and when the monitored temperature in the electric pressure cooker is greater than or equal to the boosting temperature threshold value, the pressure in the electric pressure cooker is close to the preset rated pressure (such as 105kPa) of the pressure cooker, so that the electric pressure cooker exits the boosting stage and enters the pressure cooking stage.

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

In one embodiment, the third heating power of the heating device in the heating phase may specifically be an average heating power, so that the actual heating power of the heating device may fluctuate with a small amplitude around the third heating power in the entire heating phase, or the heating device heats according to a preset duty cycle, and it is sufficient to ensure that the average heating power in the entire heating phase is the third heating power. Similarly, the fourth heating power of the heating device in the boosting stage may also be the average heating power, and is not particularly limited herein.

In one embodiment, after entering the boosting stage, the controller controls the exhaust device in the boosting device to work to exhaust air inside the electric pressure cooker, and after the exhaust control, the exhaust device is controlled to stop running, and the heating device is controlled to heat according to the fourth heating power.

In one embodiment, after the selection and the setting of the cooking function are completed according to the selection of the user, the cooking process of the electric pressure cooker is started, a detection stage is firstly entered, whether the inner pot of the electric pressure cooker is installed or not is detected in the detection stage, and after the detection is completed, the detection stage is exited, and a heating stage is entered.

In the above embodiment, before entering the pressure cooking stage, the inside of the electric pressure cooker is heated and pressurized through the heating stage and the pressure boosting stage.

In one embodiment, the cooking method of the electric pressure cooker further comprises the following steps: in the pressure relief stage, controlling the heating device to stop heating, and controlling the pressure reduction device to continuously operate according to the pressure relief power; and when the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold value, finishing the cooking process.

The pressure relief power can be customized according to an empirical value, for example, the maximum heat dissipation power of the pressure reduction device is used as the pressure relief power, and for example, the heat dissipation power of the pressure reduction device in the pressure reduction cooking process is used as the pressure relief power, which is not particularly limited herein. The pressure relief temperature threshold can be customized according to empirical values, such as 99 ℃.

Specifically, in the pressure relief stage, the controller controls the heating device to stop heating, controls the pressure reduction device to continuously dissipate heat and reduce pressure according to pressure relief power, monitors the temperature inside the electric pressure cooker in real time, indicates that the pressure relief is completed when the temperature inside the electric pressure cooker is monitored to be smaller than a pressure relief temperature threshold, exits from the pressure relief stage, and ends the whole cooking process.

In the above embodiment, after exiting the pressure cooking stage and entering the pressure relief stage, the heating device is controlled to stop heating, the pressure reduction device is controlled to reduce the pressure and dissipate heat, and the cooking process is finished after the pressure reduction and heat dissipation are completed.

In one embodiment, the pressure reducing device is continuously operated throughout the pressure cooking stage.

In one embodiment, the first heating power in one or more embodiments of the present application may specifically be an average power of the heating device in the step-down stage, so that, in the pressure cooking stage, in a single step-down cooking process, an actual heating power of the heating device may fluctuate with a small amplitude near the first heating power, or the heating device heats according to a second preset duty ratio, and it is only necessary to ensure that the average heating power of the heating device in the single step-down cooking process is the first heating power. Similarly, the second heating power in one or more embodiments of the present application may specifically be an average power of the heating device in the boosting stage, and is not specifically limited herein.

As shown in fig. 3, in one embodiment, a schematic view of a cooking method of an electric pressure cooker is provided. Referring to fig. 3, after cooking is started, the heating device is controlled to heat with P of 1200W, whether the temperature of the top inside the electric pressure cooker is greater than or equal to 90 ℃ is judged, if not, the step of controlling the heating device to heat with P of 1200W is returned to and continues to operate, if yes, the heating device is controlled to heat with P of 900W, whether the temperature of the top inside the electric pressure cooker is greater than or equal to 115 ℃ is judged, if not, the step of controlling the heating device to heat with P of 900W is returned to and continues to operate, if yes, the number of times of pressure reduction/pressure increase cooking is judged to be greater than or equal to 4, if not, whether the temperature of the top inside the electric pressure cooker monitored in real time is greater than or equal to 118 ℃ is judged, if the temperature of the top inside the electric pressure cooker is greater than or equal to 118 ℃, the pressure reduction device is controlled to perform heat dissipation/pressure reduction cooking with P of 400W, after the pressure reduction cooking process is completed, increasing the pressure reduction cooking frequency for 1 time, returning to the step of judging whether the pressure reduction/pressure increase cooking frequency is more than or equal to 4 and continuing to execute, if the top temperature in the electric pressure cooker is less than 118 ℃, it is further determined whether the top temperature is less than 107 c, if the top temperature is less than 107 c, the heating device P is controlled to perform heating/pressure boosting cooking at 800W, and after the pressure boosting cooking process is completed, increasing the number of times of pressure boosting cooking for 1 time, returning to the step of judging whether the number of times of pressure boosting/reducing cooking is more than or equal to 4 to continue executing, if the top temperature is more than or equal to 107 ℃, the heating device is controlled to maintain the current heating power, and the voltage reduction device is controlled to maintain the current scattering power, after the current maintenance cooking (pressure-increasing cooking or pressure-decreasing cooking) process is completed, the step of returning to the judgment whether the pressure-decreasing/pressure-increasing cooking number is greater than or equal to 4 is continued.

Further, if the pressure reduction cooking frequency and/or the pressure increase cooking frequency is greater than or equal to 4, the heating device is controlled to stop heating, the pressure reduction device is controlled to continuously operate, whether the temperature of the top inside the electric pressure cooker is less than 99 ℃ is judged, if not, the heating device is returned to the control heating device to stop heating, the pressure reduction device is controlled to continuously perform the step of continuously radiating heat, and if yes, the cooking is finished. It can be understood that, after the secondary maintaining cooking (pressure-increasing cooking or pressure-decreasing cooking) process is completed, the controller may also increase the corresponding cooking frequency (pressure-decreasing cooking frequency or pressure-increasing cooking frequency) once, and then return to the step of determining whether the pressure-decreasing/pressure-increasing cooking frequency is greater than or equal to 4 to continue to be executed, specifically, if the pressure cooking stage is just entered, the maintaining cooking is immediately performed, and the corresponding cooking frequency is not updated, and if the pressure cooking stage is entered, the maintaining cooking is correspondingly updated after the maintaining cooking process is completed.

Fig. 4 is a schematic view of a cooking process of the electric pressure cooker in one embodiment. Referring to fig. 4, the cooking link of the electric pressure cooker sequentially comprises a heating stage, a boosting stage, a pressure cooking stage and a pressure releasing stage, wherein the temperature in the cooker of the electric pressure cooker continuously rises in the heating stage and the boosting stage, tends to be relatively stable in the pressure cooking stage, and gradually falls in the pressure releasing stage.

Fig. 5 is a schematic diagram of the pressure, temperature and power of the electric pressure cooker changing with time during the cooking process in one embodiment. Referring to fig. 5, in the heating stage, the heating device heats with high power (1200W), the pressure in the electric pressure cooker is zero, and the temperature is constantly raised with time, in the pressure raising stage, the heating device heats with high power (900W), the pressure and the temperature in the electric pressure cooker are constantly raised with time, in the pressure cooking stage, the pressure lowering cooking and the pressure raising cooking are alternately performed by controlling the cooking device, so that the pressure and the temperature in the electric pressure cooker realize the alternate change of lowering and raising, the pressure and the temperature are constantly lowered in the pressure lowering cooking process, and are constantly raised in the pressure raising cooking stage, the temperature and the pressure after the pressure lowering cooking process/the pressure raising cooking process are respectively consistent by controlling the total heat of the pressure lowering cooking process to be consistent with the total heat of the pressure raising cooking process, wherein in the pressure lowering cooking process, the pressure lowering device is controlled to dissipate heat according to the first heat dissipation power (the heat dissipation power shown in fig. 5), and controlling the heating device to stop heating, controlling the heating device to heat according to second heating power (heating power shown in figure 5) in the boosting cooking process, controlling the pressure reducing device to stop radiating, controlling the heating device to stop heating in the pressure relief stage, and controlling the pressure reducing device to radiate according to first radiating power (pressure relief power) so as to gradually reduce the pressure and the temperature in the electric pressure cooker, wherein the pressure is reduced to zero until the pressure relief is completed.

It will be appreciated that the total heat of the reduced pressure cooking process is equal to the product of the reduced pressure cooking power and the reduced pressure cooking time period. The total heat of the boost cooking process is equal to the product of the boost cooking power and the boost cooking time period. In the alternating control process of the pressure-reducing cooking and the pressure-increasing cooking, the heating power of the heating device and the heat dissipation power of the pressure-reducing device are not abrupt but continuously changed. In fig. 5, the heating device is controlled to stop heating during the pressure-reducing cooking, and the pressure-reducing device is controlled to stop radiating heat during the pressure-increasing cooking, which is only an example and is not particularly limited.

FIG. 6 is a schematic diagram of the pressure, temperature, power changes over time in the electric pressure cooker during cooking in one embodiment. Referring to fig. 6, in the heating stage, the heating device heats with high power (1200W), the pressure in the electric pressure cooker is zero, and the temperature rises continuously with time, in the pressure-rising stage, the heating device heats with high power (900W), the pressure and the temperature in the electric pressure cooker rise continuously with time, in the pressure-cooking stage, the pressure-lowering cooking and the pressure-rising cooking are performed alternately by controlling the cooking device, so that the pressure and the temperature in the electric pressure cooker realize the alternate change of lowering and rising, the pressure and the temperature are lowered continuously in the pressure-lowering cooking process, and are raised continuously in the pressure-rising cooking stage, wherein in the pressure-lowering cooking process, the pressure-lowering device is controlled to dissipate heat according to the first heat dissipation power (the heat dissipation power shown in fig. 6), the heating device is controlled to stop heating, in the pressure-rising cooking process, the heating device is controlled to heat according to the second heating power (the heating power shown in fig. 6), and controlling the pressure reduction device to dissipate heat according to a second heat dissipation device consistent with the first heat dissipation device, wherein the first heat dissipation power is smaller than the second heating power, controlling the heating device to stop heating in a pressure relief stage, and controlling the pressure reduction device to dissipate heat according to the first heat dissipation power (pressure relief power) so as to gradually reduce the pressure and the temperature in the electric pressure cooker until the pressure is reduced to zero when the pressure relief is completed.

It is understood that the heating power of the heating means and the heat radiation power of the pressure-decreasing means are not abruptly changed but continuously changed during the alternate control of the pressure-decreasing cooking and the pressure-increasing cooking. In fig. 5, the heating device is controlled to stop heating during the pressure-reducing cooking process, and the heat sink is controlled to continuously dissipate heat during the whole pressure cooking stage, which is only an example and is not particularly limited.

Fig. 7 is a schematic diagram of the pressure, temperature, power changes over time in the electric pressure cooker during cooking in one embodiment. Referring to fig. 7, in the heating stage, the heating device heats with high power (1200W), the pressure in the electric pressure cooker is zero, and the temperature is constantly raised with time, in the pressure raising stage, the heating device heats with high power (900W), the pressure and the temperature in the electric pressure cooker constantly raise with time, in the pressure cooking stage, the pressure lowering cooking and the pressure raising cooking are alternately performed by controlling the cooking device, so that the pressure and the temperature in the electric pressure cooker realize the alternate change of lowering and raising, the pressure and the temperature are constantly lowered in the pressure lowering cooking process, and constantly raise in the pressure raising cooking stage, the temperature and the pressure after the pressure lowering cooking process/the pressure raising cooking process are respectively consistent by controlling the total heat of the pressure lowering cooking process to be consistent with the total heat of the pressure raising cooking process, wherein, in the pressure lowering cooking process, the pressure lowering device is controlled to dissipate heat according to the first heat dissipation power (the heat dissipation power shown in fig. 7), controlling the heating device to stop heating, controlling the heating device to heat according to the second heating power (the heating power shown in figure 7) in the boosting cooking process, controlling the pressure reduction device to stop radiating, in the whole pressure cooking stage, the first heat dissipation power and the second heating power are kept unchanged, and by adjusting the first preset pressure and the second preset pressure, and/or the first preset temperature and the second preset temperature lead the pressure and the temperature in the electric pressure cooker to be in a descending trend in the process of alternating change, thus, the cooking effect can be ensured, and the quick pressure relief can be realized, thereby shortening the cooking time, in the pressure relief stage, the heating device is controlled to stop heating, the pressure reduction device is controlled to dissipate heat according to the first heat dissipation power (pressure relief power), so that the pressure and the temperature in the electric pressure cooker are gradually reduced until the pressure is reduced to zero when the pressure relief is finished.

It is to be understood that, in fig. 7, the heating device is controlled to stop heating during the pressure-reducing cooking, and the pressure-reducing device is controlled to stop heat dissipation during the pressure-increasing cooking, which is only an example and is not intended to be limited in particular.

FIG. 8 is a schematic diagram of the pressure, temperature, power changes over time within the electric pressure cooker during the pressure cooking stage when adding a cushioning cooking process in one embodiment. Referring to fig. 8, in each cooking stage (heating stage, boosting stage, pressure cooking stage and pressure releasing stage), the control modes of the heating device and the pressure reducing device are similar to the control mode corresponding to fig. 5, and are not repeated herein, and the difference between the two is that in the pressure cooking stage, before the pressure reducing cooking is performed each time, the buffering cooking process is set, the pressure reducing cooking is performed after the buffering cooking process is completed, correspondingly, before the boosting cooking is performed each time, the buffering cooking process is set, and the pressure increasing cooking is performed after the buffering cooking process is completed. By arranging the buffering cooking process before the pressure-increasing cooking and the pressure-reducing cooking, the change rate of the temperature and the pressure in the electric pressure cooker during the alternating change can be relatively slow.

It should be understood that although the steps in the flowcharts of fig. 2 and 3 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 and 3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternatively with other steps or at least a portion of the other steps or stages.

In one embodiment, as shown in fig. 9, there is provided a cooking apparatus 900 of an electric pressure cooker, including: an acquisition module 901, a first cooking control module 902, a second cooking control module 903 and a cooking phase control module 904, wherein:

an obtaining module 901, configured to obtain an operating parameter of the electric pressure cooker, which is monitored in real time during a pressure cooking stage;

the first cooking control module 902 is configured to control the heating device to heat according to the first heating power and control the voltage reduction device to dissipate heat according to the first heat dissipation power when the operating parameter meets the voltage reduction cooking condition; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker;

the second cooking control module 903 is used for controlling the heating device to heat according to the second heating power and controlling the voltage reduction device to dissipate heat according to the second heat dissipation power when the operating parameters meet the pressure-boosting cooking condition; the second heating power is greater than the second heat dissipation power;

and a cooking stage control module 904, configured to enter a pressure relief stage when a pressure cooking stage exit condition is met.

In one embodiment, the cooking device 900 of the electric pressure cooker further includes: and a third cooking control stage, configured to control the heating device to maintain the current heating power for heating and control the voltage reducing device to maintain the current heat dissipation power for heat dissipation when the current pressure is greater than the second preset pressure and less than the first preset pressure and/or the current temperature is greater than the second preset temperature and less than the first preset temperature.

In one embodiment, the obtaining module 901 is further configured to obtain the weight of the cooking object, the type of the cooking object, and the cooking function; according to the weight of the cooking object, the type of the cooking object and the cooking function, determining a first preset pressure, a second preset pressure, a first preset temperature and a second preset temperature.

In one embodiment, the first cooking control module 902 is further configured to control the cooking apparatus to perform buffer cooking according to the first buffer cooking power and start the first timer when the operation parameter satisfies the reduced-pressure cooking condition; the cooking device comprises a heating device and a pressure reduction device; when the timing duration of the first timer reaches the first buffering cooking duration, controlling the heating device to heat according to the first heating power, and controlling the voltage reduction device to dissipate heat according to the first heat dissipation power; a second cooking control module 903, configured to control the cooking device to perform buffer cooking according to a second buffer cooking power and start a second timer when the operation parameter meets the boost cooking condition; and when the timing duration of the second timer reaches the second buffering cooking duration, controlling the heating device to heat according to the second heating power, and controlling the voltage reduction device to dissipate heat according to the second heat dissipation power.

In one embodiment, the pressure reduction device comprises a heat dissipation device and an exhaust device; the first cooking control module 902 is further configured to control the heat dissipation device to dissipate heat according to the second heat dissipation power; and controlling the exhaust device to stop running.

In one embodiment, the cooking stage control module 904 is further configured to control the heating device to heat at a third heating power during the heating stage; when the temperature in the electric pressure cooker is greater than or equal to the heating temperature threshold, entering a boosting stage; in the boosting stage, controlling a heating device to heat according to fourth heating power; and entering a pressure cooking stage when the temperature in the electric pressure cooker is greater than or equal to the pressure-boosting temperature threshold value.

In one embodiment, the cooking stage control module 904 is further configured to control the heating device to stop heating and the pressure reducing device to continuously operate according to the pressure relief power in the pressure relief stage; and when the temperature in the electric pressure cooker is greater than or equal to the pressure relief temperature threshold value, finishing the cooking process.

For the specific definition of the cooking device of the electric pressure cooker, reference may be made to the above definition of the cooking method of the electric pressure cooker, which is not described herein again. All or part of the modules in the cooking device of the electric pressure cooker can be realized by software, hardware and the combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, the electric pressure cooker comprises an electric pressure cooker body, a pressure reducing device, a heating device and a controller, and further comprises at least one of a pressure detecting device and a temperature detecting device, wherein the controller comprises a memory and a processor, a computer program is stored in the memory, and the processor executes the computer program to realize the steps in the method embodiments.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the steps of the method embodiments.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can 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, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cooking method of an electric pressure cooker is characterized by comprising the following steps:

in the pressure cooking stage, acquiring real-time monitored operation parameters in the electric pressure cooker; the cooking process of the electric pressure cooker sequentially comprises a heating stage, a boosting stage, a pressure cooking stage and a pressure relief stage;

when the operating parameters meet the pressure reduction cooking conditions, controlling the heating device to heat according to first heating power, and controlling the pressure reduction device to dissipate heat according to first heat dissipation power; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker; the pressure reduction device comprises an exhaust device and a heat dissipation device;

when the operating parameters meet the boosting cooking condition, controlling the heating device to heat according to second heating power, and controlling the heat dissipation device to dissipate heat according to second heat dissipation power; the second heating power is greater than the second heat dissipation power;

2. The method of claim 1, wherein the operating parameter comprises at least one of a current pressure and a current temperature; the reduced-pressure cooking condition comprises that 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; the boosting cooking condition comprises that the current pressure is less than or equal to a second preset pressure, and/or the current temperature is less than or equal to a second preset temperature; the second preset pressure is smaller than the first preset pressure; the second preset temperature is less than the first preset temperature.

3. The method of claim 2, further comprising:

4. The method of claim 2, wherein the pressure cooking stage exit condition comprises:

the duration of the pressure cooking phase reaches a preset duration.

5. The method according to claim 4, wherein the predetermined number of times is positively correlated to the weight of the cooking product and/or negatively correlated to a predetermined pressure, the predetermined pressure comprising the first predetermined pressure or the second predetermined pressure.

6. The method of claim 4, wherein the predetermined time period is positively correlated to the weight of the cooking product, and/or wherein the predetermined time period is negatively correlated to a predetermined pressure, wherein the predetermined pressure comprises the first predetermined pressure or the second predetermined pressure.

7. The method of claim 2, wherein the determining the first preset pressure, the second preset pressure, the first preset temperature and the second preset temperature comprises:

acquiring the weight, the type and the cooking function of the cooking object;

8. The method of claim 2, wherein the first predetermined pressure, the second predetermined pressure and the duration of the pressure cooking phase are positively correlated; the first preset temperature and the second preset temperature are in positive correlation with the cooking time of the pressure cooking stage.

9. The method of claim 2, wherein the first predetermined pressure, the second predetermined pressure are inversely related to a cooking duration of the pressure cooking stage; and/or the first preset temperature and the second preset temperature are inversely related to the cooking time of the pressure cooking stage.

10. The method according to any one of claims 1 to 9, wherein when the operating parameter meets a reduced-pressure cooking condition, the heating device is controlled to heat according to a first heating power, and the reduced-pressure device is controlled to dissipate heat according to a first heat dissipation power; the first heating power is smaller than the first heat dissipation power, and includes:

when the operating parameter satisfies the cooking condition that steps up, control heating device heats according to second heating power to and control heat abstractor dispels the heat according to second heat dissipation power, include:

and when the timing duration of the second timer reaches a second buffering cooking duration, controlling the heating device to heat according to a second heating power, and controlling the heat dissipation device to dissipate heat according to a second heat dissipation power.

11. The method according to any one of claims 1 to 9, further comprising:

and when the operation parameters meet the boosting cooking conditions, controlling the exhaust device to stop operating.

12. The method according to any one of claims 1 to 9, further comprising:

13. The method according to any one of claims 1 to 9, further comprising:

and when the temperature in the electric pressure cooker is less than or equal to the pressure relief temperature threshold, finishing the cooking process.

14. A cooking device of an electric pressure cooker, characterized in that the device comprises:

the acquisition module is used for acquiring real-time monitored operation parameters in the electric pressure cooker in a pressure cooking stage; the cooking process of the electric pressure cooker sequentially comprises a heating stage, a boosting stage, a pressure cooking stage and a pressure relief stage;

the first cooking control module is used for controlling the heating device to heat according to first heating power and controlling the pressure reduction device to dissipate heat according to first heat dissipation power when the operating parameters meet the pressure reduction cooking condition; the first heating power is less than the first heat dissipation power; the heating device and the pressure reducing device are arranged at different positions in the electric pressure cooker; the pressure reduction device comprises an exhaust device and a heat dissipation device;

the second cooking control module is used for controlling the heating device to heat according to second heating power and controlling the heat dissipation device to dissipate heat according to second heat dissipation power when the operating parameters meet the boosting cooking condition; the second heating power is greater than the second heat dissipation power;

15. An electric pressure cooker comprising an electric pressure cooker body, a pressure reducing device, a heating device and a controller, and further comprising at least one of a pressure detecting device and a temperature detecting device, wherein the controller comprises a memory and a processor, and the memory stores a computer program, and is characterized in that the processor implements the steps of the method according to any one of claims 1 to 13 when executing the computer program.

16. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 13.