WO2020038209A1 - Pressure cooking utensil, and control method and device therefor - Google Patents
Pressure cooking utensil, and control method and device therefor Download PDFInfo
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- WO2020038209A1 WO2020038209A1 PCT/CN2019/098875 CN2019098875W WO2020038209A1 WO 2020038209 A1 WO2020038209 A1 WO 2020038209A1 CN 2019098875 W CN2019098875 W CN 2019098875W WO 2020038209 A1 WO2020038209 A1 WO 2020038209A1
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- temperature
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- preset
- heating
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
Definitions
- the present application relates to the technical field of household appliances, and in particular, to a pressure cooking appliance and a control method and device thereof.
- the cooking performance of related cooking appliances such as rice cookers is affected by many factors, such as heating uniformity, power level, temperature control, pressure control, etc., which will affect the cooking performance.
- uniform heating is one of the important factors and uneven heating This will cause problems such as insufficient local gelatinization or excessive local gelatinization, which will result in poor taste and insufficient aroma.
- This application aims to solve at least one of the technical problems in the above-mentioned technologies to a certain extent.
- the first object of the present application is to propose a cooking control method for a cooking appliance, so as to realize that the rice grains are loosened without sticking by the disturbance of low-temperature boiling air bubbles, thereby ensuring the heating uniformity of the rice grains.
- the second object of the present application is to propose another cooking control method for a cooking appliance.
- a third object of the present application is to propose a cooking appliance.
- a fourth object of the present application is to provide a control device for a cooking appliance.
- a fifth object of the present application is to propose a non-transitory computer-readable storage medium.
- an embodiment of the first aspect of the present application provides a cooking control method for a cooking appliance.
- the cooking appliance includes a pot body, a cover body, a vacuum device, and a heating device, and the cover body is movably mounted on the device.
- a sealed cooking cavity is formed between the pot body and the cover body when the cover body is in a closed position, and the vacuum device evacuates the cooking cavity when the cooking cavity is closed to Forming a negative pressure vacuum in the cooking cavity
- the method includes the following steps: detecting a cooking parameter of the cooking appliance during a cooking process of the cooking appliance, wherein the cooking process includes a pre-treatment stage, heating and boiling Phase and high-temperature boiling phase, the cooking parameters include at least one of a temperature in the cooking cavity, a pressure in the cooking cavity, and an operating time of the temperature-boiling phase; when the cooking appliance is in the temperature-boiling phase In the stage, the heating device is controlled to perform heating work, and the vacuum device is controlled to evacuate the cooking cavity so that the cooking cavity is in the cooking state.
- the vacuum device is controlled to control the cooking cavity. Vacuuming is performed so that when the temperature of the cooking cavity in the cooking cavity reaches a first temperature value or exceeds a preset threshold of the first temperature value, boiling bubbles are generated, so that the rice grains are loosened and non-sticky by the disturbance of the low temperature boiling bubbles, ensuring that the rice grains are uniformly heated. It makes the cooked rice taste more uniform and has more flavor and sweetness.
- the vacuum device is controlled to be closed according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling stage, which can achieve better boiling and tumbling while preventing water vapor generated after boiling and inhaling vacuum.
- Device to prevent breeding of bacteria is controlled to be closed according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling stage, which can achieve better boiling and tumbling while preventing water vapor generated after boiling and inhaling vacuum.
- the method for controlling a cooking appliance according to the foregoing embodiments of the present application may also have the following additional technical features:
- At least one of controlling the vacuum device to shut down includes: controlling the vacuum device to shut down when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature; or obtaining the cooking cavity according to the temperature in the cooking cavity The internal temperature rises within a preset sampling time, and controls the vacuum device to turn off when the temperature rises during the preset sampling time is less than the preset temperature rise.
- the above-mentioned cooking control method for a cooking appliance further includes: determining an amount of rice water in the cooking cavity before the heating and boiling phase; determining the amount of rice water in the cooking cavity A preset shutdown temperature or the preset temperature rise rate.
- the heating and boiling phase is based on the temperature in the cooking cavity, the pressure in the cooking cavity, and the heating and boiling phase.
- At least one of the running times of controlling the vacuum device to shut down includes controlling the vacuum device to shut down when the running time of the heating and boiling phase is greater than or equal to a preset shutdown time.
- the above-mentioned cooking control method for a cooking appliance further includes: determining an amount of rice water in the cooking cavity before the heating and boiling phase; determining the amount of rice water in the cooking cavity Preset closing time.
- the vacuum device when the vacuum device is controlled to be turned off according to the pressure in the cooking cavity, the temperature according to the temperature in the cooking cavity, the pressure in the cooking cavity, and the At least one of controlling the closing of the vacuum device during the running time includes: controlling the vacuum device to close when the pressure in the cooking cavity rises to a value greater than or equal to a preset closing pressure; or, obtaining according to the pressure in the cooking cavity The pressure in the cooking cavity rises within a preset sampling time, and when the pressure rises within the preset sampling time is greater than a preset pressure rise rate, the vacuum device is controlled to turn off.
- the above-mentioned cooking control method for a cooking appliance further includes: determining an amount of rice water in the cooking cavity before the heating and boiling phase; determining the amount of rice water in the cooking cavity The preset closing pressure or the preset pressure rising rate.
- the At least one of the pressure and the operating time of the heating and boiling phase controlling the vacuum device to shut down includes: when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is within a preset pressure range , Controlling the vacuum device to be turned off; or, when controlling the vacuum device to be turned off according to the operating time of the heating and boiling phase and the pressure in the cooking cavity, said according to the temperature in the cooking cavity, the cooking At least two of the pressure in the cavity and the operating time of the heating and boiling phase controlling the vacuum device to shut down include: when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the pressure in the cooking cavity is between When the pressure range is preset, the vacuum device is controlled to be turned off; or, according to the operating time of the heating and boiling phase and the temperature in
- the above-mentioned cooking control method for a cooking appliance further includes: when the temperature in the cooking cavity is less than the preset shutdown temperature and the pressure in the cooking cavity is greater than the preset pressure range When the upper limit of the pressure is determined, the cooking appliance is faulty; or when the operating time of the heating and boiling phase is greater than or equal to a preset off time and the pressure in the cooking cavity is greater than the pressure in the preset pressure range When the upper limit value is reached, it is judged that the cooking appliance is faulty; or when the operating time of the heating and boiling phase is greater than or equal to a preset off time and the temperature in the cooking cavity is less than the lower limit of the preset temperature range Value, it is judged that the cooking appliance is malfunctioning.
- the above-mentioned cooking control method for a cooking appliance further includes: before the heating and boiling phase, determining an amount of rice water in the cooking cavity, and determining the amount of rice water according to the amount of rice water in the cooking cavity.
- the preset closing temperature and the preset pressure range or, before the heating and boiling phase, determining an amount of rice water in the cooking cavity, and determining the preset closing time according to the amount of rice water in the cooking cavity
- the preset pressure range or, before the heating and boiling phase, determining the amount of rice water in the cooking cavity, and determining the preset closing time and the preset according to the amount of rice water in the cooking cavity temperature range.
- the temperature-boiling stage of the cooking appliance is determined by a temperature in the cooking cavity, and the cooking appliance is determined when a temperature in the cooking cavity reaches a first temperature value. Enter the temperature-boiling stage, wherein the first temperature value is determined according to the gelatinization temperature of rice and is less than the atmospheric pressure boiling point.
- the controlling the heating device to perform heating work and controlling the vacuum device to evacuate the cooking cavity includes: controlling the heating device to perform heating work and controlling the vacuum The device evacuates the cooking cavity at least once, so that when the temperature of the cooking cavity in the cooking cavity reaches the first temperature value or exceeds a preset threshold of the first temperature value, boiling bubbles are generated.
- the first temperature value is less than or equal to the gelatinization temperature of the rice; or, the first temperature value is 55 ° C to 65 ° C.
- the controlling the vacuum device to evacuate the cooking cavity at least once includes: controlling the heating device to perform heating work, and simultaneously controlling the vacuum device to evacuate the cooking cavity. ; Or, first controlling the vacuum device to evacuate the cooking cavity, and then controlling the heating device to perform heating work; or, first controlling the heating device to perform heating work, and then controlling the vacuum device to perform cooking on the cooking device
- the chamber is evacuated.
- the above-mentioned cooking control method for a cooking appliance further comprises: when the heating device performs heating while the vacuum device performs vacuuming for a preset time, controlling the heating device to be spaced apart. Perform heating work or continuously perform heating work, and / or control the vacuum device to perform evacuation at intervals or continuously perform evacuation; or, first control the vacuum device to perform evacuation on the cooking cavity and then control
- the heating device performing the heating work includes: when the vacuum device's evacuation time reaches a preset evacuation time, then controlling the heating device to perform the heating work; or, the first controlling the heating device to perform the heating work
- Controlling the vacuum device to evacuate the cooking cavity includes: controlling the vacuum device to evacuate when the heating device performs heating work for a preset heating time.
- the preset time is 0-20min; or the preset evacuation time is 0-20min; or the preset heating time is 0-20min.
- controlling the vacuum device to evacuate the cooking cavity first and then controlling the heating device to perform heating work further includes: in the process of controlling the heating device to perform heating work, Controlling the vacuum device to continue to evacuate; or, controlling the heating device to perform heating work before controlling the vacuum device to evacuate the cooking cavity further includes: controlling the vacuum device to perform vacuum During the process, the heating device is also controlled to continue heating.
- controlling the heating device to perform heating work includes: obtaining a preset heating rate; and controlling the heating device to perform heating at intervals according to the preset heating rate and a temperature in the cooking cavity.
- Working or continuous heating work includes: obtaining a preset heating rate; and controlling the heating device to perform heating at intervals according to the preset heating rate and a temperature in the cooking cavity.
- controlling the vacuum device to evacuate includes: detecting a pressure in the cooking cavity during a cooking process of the cooking appliance; obtaining a preset pressure, wherein the preset pressure Less than the atmospheric pressure; controlling the vacuum device to perform vacuum extraction intermittently or continuously according to the preset pressure and the pressure in the cooking cavity.
- the preset pressure is determined according to a gelatinization temperature of the rice.
- the preset pressure is 20 kPa to 60 kPa.
- the temperature in the cooking cavity is increased from the first temperature value to the second temperature value,
- the second temperature value is greater than the first temperature value and less than or equal to the atmospheric pressure boiling point.
- the controlling the heating device to perform heating work and the vacuum device to control the cooking chamber to evacuate includes: controlling the heating device to perform heating work, and controlling the vacuum The device controls to attenuate the pressure in the cooking cavity when the temperature in the cooking cavity increases at least once, so that the temperature of the cooking cavity in the cooking cavity reaches the first temperature value or more A boiling bubble is generated when the first temperature value is at a preset threshold.
- the above-mentioned cooking control method for a cooking appliance further includes: during an air-extracting cooking process, controlling a first air pressure value in the pan between a first temperature point and a second temperature point of the cooking ingredients
- the ratio of the integral value to the second integral value of the pressure outside the pot between the first temperature point and the second temperature point is less than a set ratio threshold; wherein the set ratio threshold is equal to or less than 1
- the second temperature point is greater than the 7 first temperature point, and the first temperature point and the second temperature point are both lower than the boiling temperature corresponding to the pressure value outside the pot.
- the set ratio threshold is equal to or less than 0.8; or the set ratio threshold is equal to or less than 0.6; or the set ratio threshold is equal to or less than 0.5; or the set The fixed ratio threshold is equal to or less than 0.4.
- the first temperature point and the second temperature point are both greater than a difference between a gelatinization temperature of the cooking ingredient and a set difference temperature; or, the first temperature Both the point and the second temperature point are greater than the temperature value corresponding to the start time of pumping; or, the first temperature point and the second temperature point are both greater than the temperature value corresponding to the start time of heating.
- the first temperature point is equal to an initial value of a temperature in the pot.
- the above-mentioned cooking control method for a cooking appliance further comprises: controlling the air pressure value in the pot to change back and forth between a first temperature point and a second temperature point; and / or, controlling the The pressure value inside the pot is greater than the pressure value outside the pot within a first set time after the second temperature point.
- an embodiment of the second aspect of the present application proposes another method for controlling a pressure cooking appliance, including: obtaining a temperature in the pressure cooking appliance; and determining whether the temperature in the pressure cooking appliance is greater than a first preset temperature Threshold; if the temperature in the pressure cooking appliance is greater than a first preset temperature threshold, identifying a temperature range in which the temperature in the pressure cooking appliance is located, and according to the temperature range, the pressure in the pressure cooking appliance is Take control.
- the temperature in the pressure cooking appliance is acquired, whether the temperature in the pressure cooking appliance is greater than a first preset temperature threshold, and the temperature range in which the temperature in the pressure cooking appliance is located is identified, According to the temperature range, the pressure in the pressure cooking appliance is controlled, so that boiling can be achieved at a lower temperature, and at the same time, the best boiling effect can be achieved.
- the method for controlling a cooking appliance according to the foregoing embodiments of the present application may also have the following additional technical features:
- the identifying a temperature range in which the temperature in the pressure cooking appliance is located, and controlling the pressure in the pressure cooking appliance according to the temperature range including: judging the pressure Whether the temperature in the cooking appliance is within a first preset temperature range; if the temperature in the pressure cooking appliance is within the first preset temperature range, controlling the pressure in the pressure cooking appliance at a first pressure Range; if the temperature of the pressure cooking appliance is greater than the first preset temperature range, further determining whether the temperature in the pressure cooking appliance is within the second preset temperature range; if the temperature in the pressure cooking appliance Within the second preset temperature range, the pressure in the pressure cooking appliance is controlled to a second pressure range, wherein the pressure value in the second pressure range is greater than the pressure value in the first pressure range.
- the first preset temperature range is between the first preset temperature threshold and a second preset temperature threshold
- the second preset temperature range is the second preset temperature
- the temperature threshold is between the third preset temperature threshold.
- the range of the first preset temperature threshold is 55 ° C-65 ° C
- the range of the second preset temperature threshold is 70 ° C-80 ° C
- the third The preset temperature threshold ranges from 85 ° C to 95 ° C.
- the first pressure range is 10 kPa-80 kPa
- the second pressure range is 30 kPa-90 kPa.
- the first pressure range is 20 kPa-70 kPa
- the second pressure range is 40 kPa-90 kPa.
- the first pressure range is 40kPa-60kPa
- the second pressure range is 50kPa-90kPa.
- the first pressure range is 60 kPa-80 kPa
- the second pressure range is 70 kPa-90 kPa.
- the identifying the temperature range in which the temperature in the pressure cooking appliance is located, and controlling the pressure in the pressure cooking appliance according to the temperature range further comprising: if the If the temperature in the pressure cooking appliance is greater than the first preset temperature threshold and less than the second preset temperature threshold, the pressure change value of the pressure cooking appliance is controlled within a first change range, wherein the first change The range is based on the pressure corresponding to the first preset temperature threshold; if the temperature in the pressure cooking appliance is greater than the second preset temperature threshold and less than a third preset temperature threshold, the pressure cooking appliance The pressure change value is controlled within a second change range, wherein the second change range is based on a pressure corresponding to the second preset temperature threshold.
- the first variation range is 20 kPa
- the second variation range is 20 kPa
- an embodiment of the third aspect of the present application provides a cooking appliance, including: a pot body; a cover body, the cover body is movably mounted on the pot body, and when the cover body is in a closed position A sealed cooking cavity is formed between the pot body and the lid body; a heating device; a vacuum device, the vacuum device evacuates the cooking cavity when the cooking cavity is closed, so that the inside of the cooking cavity is formed Negative pressure vacuum; a detection module for detecting a cooking parameter of the cooking appliance during a cooking process of the cooking appliance, wherein the cooking process includes a pretreatment stage, a temperature-boiling stage, and a high-temperature boiling stage
- the cooking parameter includes at least one of a temperature in the cooking cavity, a pressure in the cooking cavity, and an operating time of the heating and boiling phase; a control unit, the control unit is connected to the detection module, and The control unit is configured to control the heating device to perform heating work when the cooking appliance is in the heating and boiling phase, and control the vacuum device to perform
- Vacuuming is performed to generate boiling bubbles when the temperature in the cooking cavity reaches the first temperature value or is greater than a preset threshold of the first temperature value, and according to the temperature in the cooking cavity At least one of the pressure in the cooking cavity and the operating time of the temperature-boiling phase controls the vacuum device to be turned off until the cooking appliance enters the high-temperature boiling phase.
- the control unit controls the vacuum device to pump the cooking cavity. Vacuum, so that when the temperature of the cooking cavity in the cooking cavity reaches a first temperature value or exceeds a preset threshold of the first temperature value, boiling bubbles are generated, so that the rice grains are loosened and non-sticky by the low temperature boiling bubble disturbance, thereby ensuring the heating uniformity of the rice grains,
- the cooked rice has a uniform taste, more flavor and sweetness.
- control unit controls the closing of the vacuum device according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling phase, which can achieve better boiling and tumbling while preventing the loss of water vapor and Inhale vacuum equipment to prevent breeding of bacteria.
- an embodiment of the fourth aspect of the present application provides a control device for a cooking appliance, including: a temperature acquisition module for acquiring a temperature in a pressure cooking appliance; a first identification module for identifying the cooking appliance The temperature inside is greater than a first preset temperature threshold; a second identification module is configured to identify a temperature range in which the temperature in the pressure cooking appliance is located when the temperature in the cooking appliance is greater than a first preset temperature threshold; A control module is configured to control the pressure in the pressure cooking appliance according to the temperature range in which it is located.
- the temperature in the pressure cooking appliance is acquired by the temperature acquisition module, and the temperature in the pressure cooking appliance is recognized by the first identification module to be greater than a first preset temperature threshold, and the pressure cooking appliance is in the pressure cooking appliance.
- the temperature range in which the temperature in the cooking appliance is located is identified by the second identification module, and the control module controls the pressure in the pressure cooking appliance according to the temperature range, so that the It achieves boiling at low temperature and can achieve the best boiling effect at the same time.
- a non-transitory computer-readable storage medium provided by the embodiment of the fifth aspect of the present application stores a computer program thereon, and when the computer program is executed by a processor, the pressure provided by the embodiment of the first aspect is implemented.
- the non-transitory computer-readable storage medium of the embodiment of the present application can achieve boiling at a lower temperature and achieve the best boiling effect, while preventing water vapor generated after boiling and sucking into a vacuum device to prevent breeding of bacteria.
- FIG. 1 is a schematic structural diagram of a cooking appliance according to an embodiment of the present application.
- FIG. 2 is a schematic structural diagram of a cover in a cooking appliance according to an embodiment of the present application.
- FIG. 3 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application
- FIG. 4 is a schematic diagram of a cooking process of a cooking appliance according to an embodiment of the present application.
- FIG. 5 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application, in which a vacuum device is turned off by temperature judgment;
- FIG. 6 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application, in which a vacuum device is turned off by pressure determination;
- FIG. 7 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application, in which a vacuum device is turned off by judging by time;
- FIG. 8 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application, in which a vacuum device is turned off by judging temperature and pressure;
- FIG. 9 is a flowchart of a cooking control method for a cooking appliance according to another embodiment of the present application, in which a vacuum device is turned off by judging time and pressure;
- FIG. 10 is a flowchart of a cooking control method for a cooking appliance according to yet another embodiment of the present application, in which a vacuum device is turned off by judging temperature and time;
- FIG. 11 is a schematic diagram of a relationship between a boiling point and agglomeration when no vacuum is applied according to an embodiment of the present application
- FIG. 12 is a schematic diagram of a relationship between a boiling point and agglomeration during vacuuming according to an embodiment of the present application.
- FIG. 13 is a schematic diagram of heating a uniform shape when no vacuum is applied according to an embodiment of the present application.
- FIG. 14 is a schematic diagram of heating a uniform shape when vacuuming according to an embodiment of the present application.
- 15 is a schematic diagram of a cooking process of a cooking appliance according to a specific embodiment of the present application.
- FIG. 16 is a flowchart of a cooking control method for a cooking appliance according to a specific embodiment of the present application, in which a pretreatment stage is constant temperature water absorption;
- FIG. 17 is a flowchart of a cooking control method for a cooking appliance according to a specific embodiment of the present application, in which the pre-processing stage is water absorption without temperature control;
- FIG. 18 is a schematic diagram of a cooking process of a cooking appliance according to another specific embodiment of the present application.
- FIG. 19 is a flowchart of a cooking control method for a cooking appliance according to another specific embodiment of the present application, in which a pretreatment stage is constant temperature water absorption;
- 20 is a flowchart of a cooking control method for a cooking appliance according to another specific embodiment of the present application, wherein the pre-processing stage is water absorption without temperature control;
- 21 is a schematic diagram of a cooking process of a cooking appliance according to yet another specific embodiment of the present application.
- a pretreatment stage is constant temperature water absorption
- FIG. 23 is a flowchart of a cooking control method for a cooking appliance according to yet another specific embodiment of the present application, wherein the pre-processing stage is water absorption without temperature control;
- FIG. 24 is a graph showing a relationship between a pressure value in a pan and a temperature of a cooking ingredient according to a specific embodiment of the present application.
- FIG. 25 is a graph showing a relationship between an air pressure value in a pan and a temperature of a cooking ingredient according to another embodiment of the present application.
- FIG. 26 is a graph showing a relationship between a pressure value in a pan and a temperature of a cooking ingredient according to another embodiment of the present application.
- FIG. 27 is a relationship diagram of a pressure value in a pan and a temperature of a cooking ingredient according to another embodiment of the present application.
- 29 is a schematic diagram of a cooking process of a pressure cooking appliance according to an embodiment of the present application.
- FIG. 30 is a schematic diagram of a nine-point moisture deviation according to an embodiment of the present application.
- FIG. 31 is a flowchart of a method for controlling a pressure cooking appliance according to another embodiment of the present application.
- FIG. 32 is a schematic diagram of a cooking appliance according to an embodiment of the present application.
- FIG. 33 is a schematic block diagram of a control device for a cooking appliance according to an embodiment of the present application.
- starch granules begin to dissolve and gelatinize when the gelatinization temperature of the rice is cooked above 62 ° C, for example, and become sticky.
- the rice grains quickly clump into clumps and hinder the balanced distribution of heat and high-temperature bubble flow, resulting in uneven heating of the rice.
- the uneven heating will lead to problems such as insufficient local gelatinization or excessive local gelatinization, poor taste of the rice and insufficient aroma. Therefore, during the cooking process, it is necessary to avoid uneven heating as much as possible.
- the inventor of the present application analyzed the cooking process and found that when the rice grains did not start to gelatinize or just began to gelatinize, the detached air bubbles generated by boiling formed disturbances on the rice grains, and the rice grains did not stick to each other under the disturbance condition. Avoid agglomeration. At the same time, boiling bubbles form dense bubble channels that transport heat and water upwards, making the rice grains more uniformly heated and absorbed.
- the boiling point that is, the temperature of the liquid's saturated vapor pressure
- Pv the saturation pressure inside the bubble
- Pe the external pressure of the liquid
- ⁇ the surface tension of the bubble
- R the radius of the bubble. Therefore, the higher the atmospheric pressure, the higher the boiling point, and the lower the atmospheric pressure, the lower the boiling point. Accordingly, by reducing the pressure in the cooking cavity of the cooking appliance, the boiling temperature can be reduced to a temperature near the temperature at which the rice does not start to gelatinize or to begin to gelatinize.
- the air in the cooking cavity is extracted during the heating process, so that a negative pressure is formed in the cooking cavity.
- the rice water generates boiling bubbles at a relatively low temperature (the temperature before the rice grains are gelled but not bound into a ball). The disturbance makes the rice grains loose and non-sticky, ensuring the uniformity of heating of the rice.
- the cooking appliance 100 in the embodiment of the present application includes a pot body 10, a cover body 20, a vacuum device 30, and a heating device 40.
- the cooking appliance 100 here may be a rice cooker or the like.
- the pot body 10 defines a cooking cavity 11 with an open upper surface, that is, the pot body 10 has a cooking cavity 11 with an open top.
- the cover body 20 is pivotably connected to the pot body 10 and moves between a closed position and an open position to close or open the cooking cavity 11, that is, the cover body 20 is movably mounted on the pot body 10. Moreover, when the lid body 20 is in the closed position, a sealed cooking cavity 11 is formed between the pot body 10 and the lid body 20.
- the vacuum device 30 is configured to evacuate the cooking cavity 11 when the cooking cavity 11 is closed, so that a negative pressure is formed in the cooking cavity 11.
- the vacuum device 30 may be provided in the cover body 20.
- the cover 20 is provided with an air inlet 21, an air outlet 22, and an air inlet 23.
- the air outlet 21 and the air inlet 23 are respectively connected to the cooking cavity 11, and the air outlet 22 is connected to the air outlet 21.
- the vacuum device 30 communicates with the air outlet 21 and the air outlet 22, and the vacuum device 30 extracts the gas in the cooking cavity 11 from the air outlet 21 and discharges the air out of the cooking cavity 11 through the air outlet 22.
- the vacuum device 30 may include a vacuum pump 31 and a connection pipe 32.
- a vacuum pump 31 is provided in the cover body 20, and the vacuum pump 31 communicates with the suction port 21 and the exhaust port 22 through a connecting pipe 32.
- the vacuum pump 31 When the vacuum pump 31 is operating, the gas in the cooking chamber 11 is exhausted from the cooking chamber 11 through the connection pipe 32 under the suction of the vacuum pump 31, so that a negative pressure is formed in the cooking chamber 11, that is, the vacuum device 30 is used for cooking
- the cavity 11 is closed, the cooking cavity 11 is evacuated to form a negative pressure in the cooking cavity 11.
- the use of the vacuum pump 31 to adjust the negative pressure of the cooking chamber 11 has strong controllability, and the connection of the vacuum pump 31 with the suction port 21 and the exhaust port 22 through the connection pipe 32 is beneficial to improving the tightness of the vacuum device 30 and avoiding The gas leakage affects the negative pressure in the cooking cavity 11.
- the vacuum device 30 further includes an electromagnetic valve 33.
- the electromagnetic valve 33 is disposed on the cover 20 and communicates with the suction port 21 and the vacuum pump 31 through the connecting pipe 32, that is, the electromagnetic valve 33. It is provided between the suction port 21 and the vacuum pump 31.
- the use of the electromagnetic valve 33 to control the communication between the vacuum pump 31 and the air outlet 21 can ensure that the vacuum pump 31 can smoothly extract steam, which is beneficial to controlling the air pressure in the cooking cavity 11.
- an embodiment of the present application proposes a cooking control method for a cooking appliance.
- FIG. 3 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application. As shown in FIG. 3, the cooking control method of a cooking appliance includes the following steps:
- the cooking parameters of the cooking appliance are detected, wherein the cooking process includes a pretreatment phase, a heating boiling phase, and a high temperature boiling phase, and the cooking parameters include the temperature in the cooking cavity, the pressure in the cooking cavity, and the heating At least one of the runtimes of the boiling phase.
- the temperature in the cooking cavity may be detected in real time by a temperature detection unit such as a temperature sensor provided at the bottom of the pot body or the temperature in the cooking cavity may be detected in real time by a temperature detection unit such as a temperature sensor provided in the lid body.
- a pressure detection unit such as a pressure sensor.
- the cooking process of the rice cooker during cooking may include, but is not limited to, a pretreatment stage, a temperature-boiling stage, and a high-temperature boiling stage.
- a pretreatment stage before entering the temperature-boiling stage, the rice cooker first enters a pretreatment stage.
- water absorption control can be performed, that is, heating from normal temperature to the water absorption temperature and maintaining the water absorption temperature for a preset water absorption time.
- the cooking time can be shortened, and the taste of the rice cooked by the cooking appliance can be improved, or the water absorption control can not be performed during the pretreatment stage, that is, the temperature is directly heated from the normal temperature to the temperature at the boiling stage, such as In addition to the first temperature value reached, in addition, the vacuum device can also be controlled to increase the water absorption rate during the pre-treatment phase; after the temperature-boiling phase, the high-temperature boiling phase is entered. During the high-temperature boiling phase, the cooking cavity is in a non-negative pressure state.
- the cooking cavity in a normal pressure state, can maintain boiling at a high temperature, that is, boiling at a temperature of the boiling point (about 100 ° C.) at an external atmospheric pressure to cook the rice.
- a high temperature that is, boiling at a temperature of the boiling point (about 100 ° C.) at an external atmospheric pressure to cook the rice.
- the temperature-boiling stage will be described in detail in the following examples.
- the cooking process may also include a rice cooking phase. It is understood that after the high-temperature boiling phase, the rice cooking phase is entered. In the high-temperature boiling phase, the cooking cavity is in a non-negative pressure state, such as a normal pressure state, and the cooking cavity can be maintained at the rice cooking status. The temperature, the temperature of the rice is lower than the temperature of the high-temperature boiling stage, which improves the taste of the rice.
- the temperature distribution in the cooking cavity is not uniform. Since the heat output from the heating device in the cooking appliance is gradually transferred from the bottom to the top, the temperature of the cooking cavity presents a layered state. Specifically, since the bottom of the cooking cavity is in direct contact with the heating device, the temperature at the bottom of the cooking cavity is the highest, the temperature in the middle is second, and the temperature at the top of the cooking cavity is the lowest.
- the bottom of the cooking cavity will first reach the boiling point and generate air bubbles, and the generated air bubbles will stir the rice grains. But because the temperature of the middle and top is lower than the bottom at this time, the temperature of the middle and top has not reached the boiling point, and the entire cooking cavity has not really entered the boiling.
- boiling bubbles are generated can be understood as when the highest temperature in the cooking cavity, that is, the temperature at the bottom of the cooking cavity reaches the boiling point, and boiling bubbles are generated, it is considered that boiling bubbles are generated in the cooking cavity, that is, If boiling bubbles are generated at the bottom of the cooking cavity, it is considered that boiling bubbles are generated in the cooking cavity, and it is not necessary for the entire cooking cavity to enter boiling.
- the first temperature The value may be a certain temperature value lower than the boiling point.
- the temperature detected by the temperature detection unit provided on the cover is used as the temperature in the cooking cavity, the temperature set on the cover when the bottom temperature reaches the boiling point The temperature detected by the detection unit has not reached the boiling point. Therefore, even if the first temperature value does not reach the boiling point at the current pressure, it is considered that boiling bubbles are generated in the cooking cavity in view of the temperature at the bottom of the cooking cavity.
- the boiling point of water at a pressure of 40kpa is 76 ° C.
- the air pressure in the cooking cavity is maintained at a negative pressure of about 40kpa, the generation of bubbles must be before the entire cooking cavity enters boiling.
- the temperature reaches 60 ° C, bubbles start to form.
- the temperature-boiling phase of the cooking appliance can be determined by the temperature in the cooking cavity.
- a first temperature value it is determined that the cooking appliance enters the temperature-boiling phase.
- the temperature is less than the atmospheric boiling point.
- the first temperature value is determined according to the gelatinization temperature of the rice.
- the first temperature value may be less than or equal to the gelatinization temperature value Te of the rice, and the range of the gelatinization temperature value Te of the rice may be 50 ° C ⁇ te ⁇ 70 ° C. It should be noted that after the rice grains are heated, within a certain temperature range, the rice grains start to break, the volume expands, the viscosity rises sharply, and the rice grains gelatinize. Therefore, the temperature required when the rice grains gelatinize is called the gelatinization temperature.
- the first temperature value may be a fixed value, or different values may be selected according to different rice types.
- different rice types correspond to different gelatinization temperatures
- different rice types may correspond to different first temperatures.
- Value that is, multiple first temperature values are set according to the gelatinization temperature of multiple rice types, and the corresponding first temperature value is selected according to the rice type used in cooking; for another example, the gelatinization of multiple rice types may be considered comprehensively Temperature to get a temperature value, and use this temperature value as the first temperature value.
- the first temperature value may be 55 ° C to 65 ° C. That is, the first temperature value T1 can be selected within a range of greater than 55 ° C and less than 65 ° C.
- the first temperature value T1 may be 60 ° C or 62 ° C.
- the heating device when the cooking appliance is in a heating and boiling phase, the heating device is controlled to increase the temperature in the cooking cavity from a first temperature value to a second temperature value, where the second temperature value is greater than The first temperature value is less than or equal to the atmospheric pressure boiling point.
- the second temperature value may be determined according to the atmospheric pressure boiling point, that is, the second temperature value may be a temperature value close to the atmospheric pressure boiling point, for example, 100 ° C. or 98 ° C.
- the temperature in the cooking cavity starts to rise from the first temperature value, and the temperature in the cooking cavity is in the range of the first temperature value to the second temperature value, that is, the temperature is greater than the gelatinization temperature of the rice.
- the temperature section where Te is less than the second temperature value for example, 98 ° C., can be used as the temperature-boiling stage, or the temperature section after the preset water absorption period but the temperature is less than 98 ° C. is the temperature-boiling stage.
- the cooking control method of the embodiment of the present application in the temperature-boiling stage, that is, from the first temperature value to the second temperature value, controlling the vacuum device to evacuate the cooking cavity to form a negative pressure in the cooking cavity.
- the vacuum reduces the boiling temperature to near the temperature at which the rice grains do not begin to gelatinize or just begin to gelatinize, that is, "low temperature boiling".
- the cooking cavity generates boiling air bubbles at a lower temperature, that is, before the rice gelatinizes but does not stick to a mass. Make sure that the rice grains are not agglomerated and keep loose and diathermy.
- the applicant of the present application has found that if the vacuum device is closed prematurely and the vent device is opened during the temperature-boiling stage, the pressure in the cooking cavity is consistent with the external atmospheric pressure, and the rice water cannot boil well. If the vacuum device is turned off too late, the water vapor generated after boiling will be sucked into the vacuum device, such as a vacuum pump, and discharged. The humidity in the cooking cavity will drop, and some substances will remain in the vacuum pump, which will easily breed bacteria.
- the heating and boiling phase in the heating and boiling phase, at least one of the integrated control of the vacuum device is closed according to the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling phase, and the extraction of the gas in the cooking cavity is stopped. Therefore, it is possible to stop extracting the gas in the cooking cavity at an appropriate time, to achieve better boiling and tumbling, and to prevent water vapor generated after boiling and sucking into a vacuum device, and to prevent breeding of bacteria.
- the vacuum device can be controlled to be turned off according to a temperature in the cooking cavity or a temperature trend in the cooking cavity.
- controlling the closing of the vacuum device according to the temperature in the cooking cavity includes: controlling the vacuum device to close when the temperature in the cooking cavity is greater than or equal to a preset closing temperature.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that the extraction of the gas in the cooking cavity can be stopped at an appropriate time. , To achieve better boiling and tumbling, at the same time to prevent the loss of water vapor generated after boiling and suction into the vacuum device, to prevent the breeding of bacteria.
- controlling the turning off of the vacuum device according to a temperature change trend in the cooking cavity includes:
- the vacuum device is controlled to be turned off.
- the ratio of the temperature difference between two adjacent temperatures to the preset sampling time is the rising rate of the temperature in the cooking cavity during the preset sampling time.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity rises less than the preset temperature rise rate within a preset sampling time, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that it can be at an appropriate time. Stop extracting the gas in the cooking cavity to achieve better boiling and tumbling, at the same time prevent the loss of water vapor generated after boiling and suck into the vacuum device, and prevent the breeding of bacteria.
- closing the vacuum device may include closing a vacuum pump and closing a solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset shutdown temperature or the preset temperature rise rate is determined according to the amount of rice water in the cooking cavity.
- the preset shut-off temperature or the preset temperature rise rate of the vacuum device is different when the amount of water in the meter is stopped and the vacuum is turned off. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing temperature or the preset temperature rising rate can be determined according to the rice water in the cooking cavity during the heating and boiling phase.
- the preset shutdown temperature has a positive correlation with the amount of rice water, that is, the preset shutdown temperature increases as the amount of rice water increases, and the preset temperature rise rate has a negative correlation with the amount of rice water, that is, the preset shutdown temperature increases with the amount of rice water. Increase and decrease.
- the amount of rice water can be determined in the pre-processing stage, for example, the temperature in the cooking cavity can be raised from a first set temperature, such as normal temperature to a second set temperature, by controlling the heating device, and recorded from the first When the set temperature rises to the second set temperature, the amount of rice water is determined according to the time. Or you can determine the amount of rice water by weighing before cooking.
- a first set temperature such as normal temperature to a second set temperature
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset shutdown temperatures, respectively, and multiple rice water volume levels may also correspond to multiple preset temperature rise rates, respectively. Therefore, the rice water quantity level in the cooking cavity can be determined first, and a preset closing temperature or a preset temperature rising rate corresponding to the rice water quantity level can be determined through a look-up table.
- the correspondence between the amount of rice water in the cooking cavity, the preset shutdown temperature, and the preset temperature rise rate can be shown in Table 1 below.
- the preset shutdown temperature is 55 ° C to 60 ° C, and the preset temperature rise rate is 3 ° C / 60s to 6 ° C / 60s;
- the preset shutdown temperature is 60 ° C to 65 ° C, and the preset temperature rise rate is 2 ° C 60s ⁇ 5 °C / 60s;
- the preset shutdown temperature is 65 °C ⁇ 70 °C, and the preset temperature rise rate is 1 °C / 60s ⁇ 3 °C / 60s.
- the cooking process of the cooking appliance may include a pretreatment stage, a temperature-boiling stage, a high-temperature boiling stage, and a rice cooking stage.
- the heating device may be controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, and when the temperature in the cooking cavity reaches a first temperature value, the heating and boiling phase is entered.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C, so that the rice grains fully absorb water.
- the heating device is controlled to perform the heating operation so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered (as shown in FIG. 4). Temperature curve).
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown in the pressure change curve in FIG. 4), so that the rice grains are more likely to absorb water, or the vacuum device can be controlled not to perform vacuum Vacuum, that is, does not reduce the pressure in the cooking cavity, uses the temperature increase to promote the rice grains to absorb water.
- the temperature in the cooking cavity can be raised from the first temperature value to the second temperature value by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity.
- the cavity generates boiling air bubbles at a lower temperature, that is, before the rice is gelatinized but not bonded into a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the rice water in the cooking cavity is constantly boiling to generate a large amount of steam, so that the pressure in the cooking cavity cannot be maintained at a low air pressure and gradually rises.
- the vacuum device is controlled to be turned off and controlled according to the state of the control cooking appliance
- the pressure relief device deflate the cooking cavity, restore the cooking utensil to a normal pressure state, and migrate to a high-temperature boiling stage.
- the vacuum device can be controlled to be always closed, and the heating device can be heated at the first power to control the heating device. Maintaining a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state to ensure that the rice is cooked.
- a preset boiling temperature such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at a second power to maintain the heating device at a preset rice cooking temperature. For example, it is larger than the first temperature value and smaller than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- a method for controlling shutdown of a vacuum device includes the following steps:
- S102 Obtain a rice water volume level, obtain a temperature in the cooking cavity, and determine a preset shutdown temperature or a preset temperature rise rate according to the rice water volume level.
- S103 Determine whether the temperature in the cooking cavity is greater than a preset shutdown temperature or whether the temperature rise rate is less than a preset temperature rise rate within a preset sampling time.
- step S104 If yes, go to step S104; if no, go back to step S103.
- the vacuum device after the vacuum device is controlled to be turned off according to the temperature in the cooking cavity or the temperature trend in the cooking cavity, the vacuum device will not be turned on until the end of cooking, that is, the vacuum device will be in the subsequent high-temperature boiling stage and the rice cooking device. It will also remain closed.
- the vacuum device when the temperature in the cavity is greater than or equal to a preset temperature or the temperature rise rate is slowed, the vacuum device is turned off to stop extracting the gas in the cooking cavity. Stop the extraction of gas in the cooking cavity at the right moment to achieve better boiling and tumbling, and at the same time prevent the loss of water vapor generated after boiling and suck into the vacuum device to prevent breeding of bacteria.
- the vacuum device may be controlled to be turned off according to the pressure in the cooking cavity or the pressure trend in the cooking cavity until the cooking appliance enters the high-temperature boiling stage.
- controlling the closing of the vacuum device according to the pressure in the cooking cavity includes: controlling the vacuum device to close when the pressure in the cooking cavity rises to be greater than or equal to a preset closing pressure.
- controlling the closing of the vacuum device according to a change trend of the pressure in the cooking cavity includes:
- the vacuum device When the pressure rise rate is greater than the preset pressure rise rate within the preset sampling time, the vacuum device is controlled to be turned off.
- the ratio of the pressure difference between two adjacent pressures and the preset sampling time is the rising rate of the pressure in the cooking cavity during the preset sampling time.
- the vacuum device in the temperature-boiling phase, when the pressure in the cooking cavity rises faster than the preset pressure in the preset sampling time, the vacuum device is turned off to stop the extraction of the gas in the cooking cavity, so that it can be at an appropriate time. Stop extracting the gas in the cooking cavity to achieve better boiling and tumbling, at the same time prevent the loss of water vapor generated after boiling and suck into the vacuum device, and prevent the breeding of bacteria.
- closing the vacuum device may include closing a vacuum pump and closing a solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing pressure or the preset pressure rising rate is determined according to the amount of rice water in the cooking cavity.
- the preset closing pressure or the rate of rising of the preset pressure of the vacuum device is different depending on the amount of water in the meter. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing pressure or the preset pressure rising rate can be determined according to the rice water in the cooking cavity during the heating and boiling phase.
- the preset closing pressure has a positive correlation with the amount of rice water, that is, the preset closing pressure increases as the amount of rice water increases.
- the amount of rice water can be determined in the pre-processing stage, for example, the temperature in the cooking cavity can be raised from a first set temperature, such as normal temperature to a second set temperature, by controlling the heating device, and recorded from the first When the set temperature rises to the second set temperature, the amount of rice water is determined according to the time. Or you can determine the amount of rice water by weighing before cooking.
- a first set temperature such as normal temperature to a second set temperature
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset closing pressures, and multiple rice water volume levels may correspond to multiple preset temperature rising rates, respectively. Therefore, the rice water quantity level in the cooking cavity can be determined first, and a preset closing pressure or a preset pressure rising rate corresponding to the rice water quantity level can be determined by looking up a table.
- the correspondence between the amount of rice water in the cooking cavity and the preset closing pressure can be shown in Table 2 below.
- the preset closing pressure is 55 kPa to 65 kPa; when the amount of rice water in the cooking cavity is greater than or equal to the first rice water amount and less than the first When the water volume of two meters is the medium water level, the preset closing pressure is 60 kPa to 70 kPa; when the rice water volume in the cooking cavity is greater than the second rice water level, that is, the rice water volume level is large, the preset closing pressure is 65 kPa to 75 kPa.
- the cooking process of the cooking appliance may include a pretreatment stage, a temperature-boiling stage, a high-temperature boiling stage, and a rice cooking stage.
- the heating device may be controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, and when the temperature in the cooking cavity reaches a first temperature value, the heating and boiling phase is entered.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C, so that the rice grains fully absorb water.
- the heating device is controlled to perform the heating operation so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered (as shown in FIG. 4). Temperature curve).
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown in the pressure change curve in FIG. 4), so that the rice grains are more likely to absorb water, or the vacuum device can be controlled not to perform vacuum Vacuum, that is, does not reduce the pressure in the cooking cavity, uses the temperature increase to promote the rice grains to absorb water.
- the temperature in the cooking cavity can be raised from the first temperature value to the second temperature value by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity.
- the cavity generates boiling air bubbles at a lower temperature, that is, before the rice is gelatinized but not bonded into a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the rice water in the cooking cavity is constantly boiling to generate a large amount of steam, so that the pressure in the cooking cavity cannot be maintained at a low air pressure and gradually rises.
- the vacuum device is controlled to be turned off and controlled according to the state of the control cooking appliance
- the pressure relief device deflate the cooking cavity, restore the cooking utensil to a normal pressure state, and migrate to a high-temperature boiling stage.
- the vacuum device can be controlled to be always closed, and the heating device can be heated at the first power to control the heating device. Maintaining a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state to ensure that the rice is cooked.
- a preset boiling temperature such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at a second power to maintain the heating device at a preset rice cooking temperature. For example, it is larger than the first temperature value and smaller than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- a method for controlling shutdown of a vacuum device includes the following steps:
- S202 Obtain a rice water volume level, obtain a pressure in the cooking cavity, and determine a preset closing pressure or a preset temperature rise rate according to the rice water volume level.
- S203 Determine whether the pressure in the cooking cavity is greater than a preset closing pressure or whether the pressure rise rate is less than a preset pressure rise rate within a preset sampling time.
- step S204 If yes, go to step S204; if no, go back to step S203.
- the vacuum device after the vacuum device is controlled to be turned off according to the pressure in the cooking cavity or a change trend in the pressure in the cooking cavity, the vacuum device will no longer be turned on until the end of cooking, that is, the vacuum device is in the subsequent high-temperature boiling stage and the rice cooking device It will also remain closed.
- the vacuum device in the temperature-boiling stage, when the temperature and pressure in the cavity is equal to or greater than a preset pressure, or when the pressure rise rate becomes fast, the vacuum device is turned off to stop extracting the gas in the cooking cavity. Stop the extraction of gas in the cooking cavity at the appropriate time to achieve better boiling and tumbling, and at the same time prevent the loss of water vapor generated after boiling and inhalation of the vacuum device to prevent breeding of bacteria.
- the vacuum device can be controlled to be turned off according to the running time of the temperature-boiling phase until the cooking appliance enters the high-temperature boiling phase.
- controlling the closing of the vacuum device according to the running time of the heating and boiling phase includes controlling the turning off of the vacuum device when the running time of the heating and boiling phase is greater than or equal to a preset closing time.
- the vacuum device in the temperature-boiling phase, when the running time of the temperature-boiling phase is greater than or equal to the preset closing time, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that the extraction of the Gas, to achieve better boiling and tumbling, while preventing the loss of water vapor generated after boiling and sucking into the vacuum device to prevent breeding of bacteria.
- closing the vacuum device may include closing a vacuum pump and closing a solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing time is determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing time can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the amount of rice water can be determined in the pre-processing stage, for example, the temperature in the cooking cavity can be raised from a first set temperature, such as normal temperature to a second set temperature, by controlling the heating device, and recorded from the first When the set temperature rises to the second set temperature, the amount of rice water is determined according to the time. Or you can determine the amount of rice water by weighing before cooking.
- a first set temperature such as normal temperature to a second set temperature
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset closing times, respectively. Therefore, the rice water amount level in the cooking cavity can be determined first, and a preset closing time corresponding to the rice water amount level can be determined by looking up a table.
- the correspondence between the amount of rice water in the cooking cavity and the preset closing time can be shown in Table 3 below.
- the preset shutdown time is 4 to 8 minutes; when the amount of rice water in the cooking cavity is greater than or equal to the first rice water amount and less than When the second rice water quantity is the medium water quantity level, the preset closing time is 7 to 10 minutes; when the rice water quantity in the cooking cavity is greater than the second rice water quantity, that is, the rice water quantity level is large, the preset closing time is 10 to 15 minutes.
- the cooking process of the cooking appliance may include a pretreatment stage, a temperature-boiling stage, a high-temperature boiling stage, and a rice cooking stage.
- the heating device may be controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, and when the temperature in the cooking cavity reaches a first temperature value, the heating and boiling phase is entered.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C, so that the rice grains fully absorb water.
- the heating device is controlled to perform the heating operation so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered (as shown in FIG. 4). Temperature curve).
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown in the pressure change curve in FIG. 4), so that the rice grains are more likely to absorb water, or the vacuum device can be controlled not to perform vacuum Vacuum, that is, does not reduce the pressure in the cooking cavity, uses the temperature increase to promote the rice grains to absorb water.
- the temperature in the cooking cavity can be raised from the first temperature value to the second temperature value by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity.
- the cavity generates boiling air bubbles at a lower temperature, that is, before the rice is gelatinized but not bonded into a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the rice water in the cooking cavity is constantly boiling to generate a large amount of steam, so that the pressure in the cooking cavity cannot be maintained at a low air pressure and gradually rises.
- the vacuum device is controlled to be turned off, and the pressure relief device is controlled to deflate the cooking cavity according to the state of the cooking appliance, so that the cooking appliance returns to a normal pressure state and migrates to High-temperature boiling stage.
- the vacuum device can be controlled to be always closed, and the heating device can be heated at the first power to control the heating device. Maintaining a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state to ensure that the rice is cooked.
- a preset boiling temperature such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at a second power to maintain the heating device at a preset rice cooking temperature. For example, it is larger than the first temperature value and smaller than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- a method for controlling shutdown of a vacuum device includes the following steps:
- S302 Start timing, obtain a rice water quantity level, and determine a preset shutdown temperature or a preset temperature rise rate according to the rice water quantity level.
- S303 Determine whether the running time during the heating and boiling phase is greater than or equal to a preset shutdown time.
- step S304 If yes, go to step S304; if no, go back to step S303.
- the vacuum device after the vacuum device is turned off according to the operating time of the heating and boiling phase, the vacuum device will not be turned on until the end of cooking, that is, the vacuum device will remain closed in the subsequent high-temperature boiling phase and the rice cooker.
- the vacuum device in the temperature-boiling phase, is controlled to close according to the operating time of the temperature-boiling phase, and the extraction of the gas in the cooking cavity is stopped, so that the extraction of the gas in the cooking cavity can be stopped at an appropriate time.
- the vacuum device is controlled to close according to the operating time of the temperature-boiling phase, and the extraction of the gas in the cooking cavity is stopped, so that the extraction of the gas in the cooking cavity can be stopped at an appropriate time.
- controlling the vacuum device to shut down include: when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is in a pre- When a pressure range is set, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is within a preset pressure range, the vacuum device is turned off to stop extracting the gas in the cooking cavity. Stop the extraction of gas in the cooking cavity at the appropriate time to achieve better boiling and tumbling, and at the same time prevent the loss of water vapor generated after boiling and inhalation of the vacuum device to prevent breeding of bacteria.
- the cooking control method of the cooking appliance further includes: when the temperature in the cooking cavity is lower than the preset shutdown temperature and the pressure in the cooking cavity is greater than a pressure upper limit value of the preset pressure range, The cooking appliance is malfunctioning.
- a reminder message can be sent to remind the user to check or send after sale.
- closing the vacuum device may include closing a vacuum pump and closing a solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing temperature and the preset pressure range are determined according to the amount of rice water in the cooking cavity.
- the preset closing temperature of the vacuum device is different when the amount of water in the meter is stopped and the vacuum device is turned off. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset shutdown temperature can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase. In addition, the preset pressure range varies with the amount of water.
- the preset shutdown temperature has a positive correlation with the amount of rice water, that is, the preset shutdown temperature increases as the amount of rice water increases.
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset shutdown temperatures, respectively. Therefore, the rice water quantity level in the cooking cavity can be determined first, and the preset closing temperature and the preset pressure range corresponding to the rice water quantity level can be determined through a look-up table.
- the At least two of the pressure in the cooking cavity and the operating time of the heating and boiling phase controlling the vacuum device to shut down include: when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the When the pressure is in a preset pressure range, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the operating time of the temperature-boiling phase is greater than or equal to a preset closing time and the pressure in the cooking cavity is within a preset pressure range, the vacuum device is turned off to stop extracting the gas in the cooking cavity, thereby, The gas in the cooking cavity can be stopped at the right moment to achieve better boiling and tumbling. At the same time, it can prevent the loss of water vapor generated after boiling and suck into the vacuum device to prevent the breeding of bacteria.
- the cooking control method of the cooking appliance further includes: when the running time of the heating and boiling phase is greater than or equal to a preset off time and the pressure in the cooking cavity is greater than a pressure upper limit value of the preset pressure range, determining the The cooking appliance is malfunctioning.
- a reminder message can be sent to remind the user to check or send after sale.
- closing the vacuum device can turn off the vacuum pump and close the solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing time and the preset pressure range are determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing time can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase. In addition, the preset pressure range varies with the amount of water.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset closing times, respectively. Therefore, the rice water amount level in the cooking cavity can be determined first, and a preset closing time and a preset pressure range corresponding to the rice water amount level can be determined by looking up a table.
- the vacuum device when the vacuum device is controlled to be turned off according to the running time of the heating and boiling stage and the temperature in the cooking cavity, the temperature, At least two of the pressure in the cooking cavity and the operating time of the heating and boiling phase controlling the vacuum device to shut down include: when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the When the temperature is in a preset temperature range, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the running time of the temperature-boiling phase is greater than or equal to a preset off time and the temperature in the cooking cavity is within a preset temperature range, the vacuum device is turned off to stop extracting gas in the cooking cavity, The gas in the cooking cavity can be stopped at the right moment to achieve better boiling and tumbling. At the same time, it can prevent the loss of water vapor generated after boiling and suck into the vacuum device to prevent the breeding of bacteria.
- the cooking control method of the cooking appliance further includes: judging when an operating time of the heating and boiling phase is greater than or equal to a preset off time and a temperature in the cooking cavity is less than a temperature lower limit value of the preset temperature range. The cooking appliance is malfunctioning.
- a reminder message can be sent to remind the user to check or send after sale.
- closing the vacuum device may include closing a vacuum pump and closing a solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing time and the preset temperature range are determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing time can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the amount of rice water can be divided into multiple rice water levels, for example, the rice water amount in the cooking cavity is less than the first rice water amount, and the rice water amount level can be determined to be small; the rice water amount in the cooking cavity is greater than or equal to The first rice water quantity is less than the second rice water quantity, and the rice water quantity grade can be determined to be medium; the rice water quantity in the cooking cavity is greater than or equal to the first rice water quantity and less than the second rice water quantity, and it can be determined that the rice water quantity grade is large.
- multiple rice water volume levels may correspond to multiple preset closing times, respectively. Therefore, the rice water amount level in the cooking cavity can be determined first, and a preset closing time corresponding to the rice water amount level can be determined by looking up a table.
- the correspondence between the amount of rice water in the cooking cavity, the preset closing temperature, the preset pressure range, and the preset closing time can be shown in Table 4 below.
- the preset shutdown time is 4 to 8 minutes
- the preset shutdown temperature is 40 to 45 degrees
- the preset pressure range is 55 ⁇ 65kPa
- the preset pressure range is 60 ⁇ 70kPa
- the preset pressure range is 65 ⁇ 75kPa.
- the cooking process of the cooking appliance may include a pretreatment stage, a temperature-boiling stage, a high-temperature boiling stage, and a rice cooking stage.
- the heating device may be controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, and when the temperature in the cooking cavity reaches a first temperature value, the heating and boiling phase is entered.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C, so that the rice grains fully absorb water.
- the heating device is controlled to perform the heating operation so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered (as shown in FIG. 4). Temperature curve).
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown in the pressure change curve in FIG. 4), so that the rice grains are more likely to absorb water, or the vacuum device can be controlled not to perform vacuum Vacuum, that is, does not reduce the pressure in the cooking cavity, uses the temperature increase to promote the rice grains to absorb water.
- the temperature in the cooking cavity can be raised from the first temperature value to the second temperature value by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity.
- the cavity generates boiling air bubbles at a lower temperature, that is, before the rice is gelatinized but not bonded into a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the rice water in the cooking cavity is constantly boiling to generate a large amount of steam, so that the pressure in the cooking cavity cannot be maintained at a low air pressure and gradually rises.
- At least two control vacuum devices are turned off, and the pressure relief device is controlled to degas the cooking cavity according to the state of the control cooking appliance, so that the cooking appliance Return to normal pressure and migrate to high temperature boiling stage.
- the vacuum device can be controlled to be always closed, and the heating device can be heated at the first power to control the heating device. Maintaining a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state to ensure that the rice is cooked.
- a preset boiling temperature such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at a second power to maintain the heating device at a preset rice cooking temperature. For example, it is larger than the first temperature value and smaller than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- a method for controlling shutdown of a vacuum device includes the following steps:
- S402 Obtain the temperature and pressure in the cooking cavity, obtain the rice water volume level, and determine the preset shutdown temperature according to the rice water volume level.
- S403 Determine whether the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature.
- step S404 If yes, go to step S404; if no, go back to step S403.
- step S405 If yes, go to step S405; if no, go back to step S407.
- S407 Determine whether the pressure in the cooking cavity is greater than a pressure upper limit value of a preset pressure range.
- step S408 If yes, go to step S408; if no, go back to step S403.
- S408 Prompt the user after detection or delivery.
- a method for controlling shutdown of a vacuum device includes the following steps:
- S502 Start timing, obtain the pressure in the cooking cavity, obtain the rice water volume level, and determine the preset closing time according to the rice water volume level.
- S503 Determine whether the running time during the heating and boiling phase is greater than or equal to the preset shutdown time.
- step S504 If yes, go to step S504; if no, go back to step S503.
- S504 Determine whether the pressure in the cooking cavity is within a preset pressure range.
- step S505 If yes, go to step S505; if no, go back to step S507.
- S507 Determine whether the pressure in the cooking cavity is greater than a pressure upper limit value in a preset pressure range.
- step S508 If yes, go to step S508; if no, go back to step S503.
- S508 Prompt the user after detection or delivery.
- a method for controlling the shutdown of a vacuum device includes the following steps:
- S602 Start timing, obtain the temperature in the cooking cavity, obtain the rice water volume level, and determine the preset close time according to the rice water volume level.
- S603 Determine whether the running time during the heating and boiling phase is greater than or equal to the preset shutdown time.
- step S604 If yes, go to step S604; if no, go back to step S603.
- S604 Determine whether the temperature in the cooking cavity is within a preset temperature range.
- step S605 If yes, go to step S605; if no, go back to step S607.
- S607 Determine whether the temperature in the cooking cavity is less than the lower temperature limit of the preset pressure range.
- step S608 If yes, go to step S608; if no, go back to step S603.
- S608 Prompt the user after detection or delivery.
- the vacuum device after the vacuum device is turned off according to the operating time of the heating and boiling phase, the vacuum device will not be turned on until the end of cooking, that is, the vacuum device will remain closed in the subsequent high-temperature boiling phase and the rice cooker.
- the control vacuum device vacuums the cooking cavity at least once, so that the temperature of the cooking cavity in the cooking cavity reaches a first temperature value or greater than the first temperature value. Boiling bubbles occur at a preset threshold.
- the vacuum device can be controlled to vacuum the cooking cavity at least once, so that a negative pressure is formed in the cooking cavity.
- a first temperature value for example, 55 ° C.
- the vacuum device can be controlled to vacuum the cooking cavity at least once, so that a negative pressure is formed in the cooking cavity.
- the air pressure in the cooking cavity decreases, and the boiling point of the rice water decreases. Therefore, by evacuating the rice water, the rice water can be produced at a lower temperature (before the rice gelatinizes but does not stick into a mass). Boiling air bubbles, forming dense air bubble channels, the disturbance of the air bubbles makes the rice grains loose and non-sticky, and enhances the convective heat transfer, thereby improving the heating uniformity of the rice grains and ultimately improving the quality of the rice.
- the number of boiling bubbles is inversely proportional to the pressure in the cooking cavity
- the generation time of the boiling bubbles is proportional to the pressure in the cooking cavity. That is, the larger the pressure in the cooking cavity, the larger the volume required for the bubbles to detach, the less the number of boiling bubbles, and the longer the generation time.
- FIGS. 11-14 The working principle of increasing the heating uniformity by evacuation during the heating and boiling phase is further described with reference to FIGS. 11-14.
- the rice water will boil at a higher temperature, that is, the core of the bubble is generated at a temperature of 70 ° C.
- the temperature is 88 ° C
- the bubbles are detached, and when the temperature is 98 ° C, the boiling is stable.
- the “negative pressure” in the examples of the present application refers to a pressure lower than the atmospheric pressure.
- the external atmospheric pressure is 101 kPa and the pressure in the cooking cavity is 70 kPa, it is considered that a negative pressure is formed in the cooking cavity.
- the cooking control method of the embodiment of the present application in the temperature-boiling stage, that is, from the first temperature value to the second temperature value, controlling the vacuum device to evacuate the cooking cavity at least once to form the cooking cavity. Negative pressure vacuum reduces the boiling temperature to near the temperature at which the rice grains do not begin to gelatinize or just begin to gelatinize, that is, "low temperature boiling".
- the cooking cavity generates boiling bubbles at a lower temperature, that is, when the rice gelatinizes but does not stick together So as to ensure that the rice grains are not agglomerated and keep loose and permeable.
- controlling the vacuum device to evacuate the cooking cavity at least once may include: controlling the vacuum device to evacuate the cooking cavity at least once continuously or intermittently.
- the vacuum device can be controlled to be continuously turned on for a certain time, or the vacuum device can be controlled to be intermittently turned on.
- the vacuum device can be used to evacuate N (N is an integer greater than or equal to 1) times.
- N is an integer greater than or equal to 1
- the vacuum device can be controlled to continue to work, and the vacuum pump is always rotating.
- the vacuum device can be controlled to turn on and off.
- the tc time mode works intermittently, that is, the vacuum pump rotates to stop tc.
- the heating device when the cooking appliance enters a heating and boiling phase, the heating device is controlled to perform heating work, and at the same time, the vacuum device is controlled to evacuate the cooking cavity to generate boiling bubbles in the cooking cavity.
- the cooking control method of the embodiment of the present application in the temperature-boiling stage, that is, from the first temperature value to the second temperature value, controlling the vacuum device to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity, so that The boiling temperature is lowered to the temperature where the rice grains have not started to gelatinize or have just started to gelatinize, that is, "low temperature boiling".
- the detached air bubbles generated by boiling disturb the rice grains, and the rice grains do not stick to each other under the disturbance to avoid agglomeration. To make rice grains more uniformly heated.
- the heating device is controlled to perform heating work so as to increase the temperature in the cooking cavity, and at the same time, the vacuum device is controlled to evacuate the cooking cavity to reduce the pressure in the cooking cavity, that is, to perform heating and vacuum simultaneously.
- vacuuming at the same time of heating can promote the precipitation of saturated gas in the water, and form fine bubbles to continuously pour out on the surface of rice water in the cooking cavity, causing the rice grains to be disturbed to a certain degree. Better avoid rice grains sticking.
- “simultaneously heating and evacuation” may mean that the heating device and the vacuum device are activated simultaneously for a period of time.
- the heating device can be controlled to start to heat the cooking cavity, wherein the vacuum device can be started at the same time as the heating device, that is, when the heating and boiling phase is entered, the vacuum device is controlled to be started to evacuate the cooking cavity at the same time.
- the vacuum device and the heating device can be turned off at the same time, or they can not be turned off at the same time, that is, the heating device is turned off first and then the vacuum device is turned off or the vacuum device is turned off first and then the heating device is turned off.
- the heating device performs heating and the vacuum device performs vacuum for a preset time t0, wherein the preset time is 0-20min, that is, 0 ⁇ t0 ⁇ 20min, to ensure low temperature boiling. effect. It can be understood that if the low-temperature boiling time is too short, the boiling is insufficient, and the rice grains cannot be better avoided; if the low-temperature boiling time is too long, the cooking time is too long, which affects the user experience. In the embodiment of the present application, by setting the time for simultaneously heating and evacuating to 0 ⁇ t0 ⁇ 20min, the effect of low temperature boiling can be ensured.
- the heating device when the heating device performs heating and the vacuum device performs the evacuation time to a preset time, the heating device is controlled to perform the heating operation at intervals or continuously, and / or the vacuum is controlled.
- the device performs vacuum extraction at intervals or continuously.
- the preset time can be 0-20min.
- the heating device may be controlled to continue heating or not to be heated, and the vacuum device may be controlled to continue to be vacuumed or not to be vacuumed.
- whether the heating device and the vacuum device continue to work can be determined according to the actual needs of the cooking process.
- the heating device may be controlled to perform the heating operation at intervals or continuously according to the requirement of the heating rate; and the vacuum device may also perform the vacuum at intervals or continuously to perform the vacuum according to the pressure in the cooking cavity.
- controlling the heating device to perform heating work at intervals or continuously includes:
- the heating device is controlled to perform heating work at intervals or continuously.
- the heating rate can be obtained through experiments and is preset in the factory.
- the temperature in the cooking cavity can be obtained in real time, and the rate of change of the temperature in the cooking cavity within a preset sampling time can be determined.
- the rate of change within time is greater than or equal to the preset heating rate, and the heating device is controlled to stop heating.
- the heating device is controlled to be performed at intervals. The heating operation or the continuous heating operation is performed to ensure that the temperature in the cooking cavity gradually increases according to a preset heating rate.
- controlling the vacuum device to perform vacuum extraction at intervals or continuously includes:
- the vacuum device is controlled to perform evacuation at intervals or continuously.
- the pressure in the cooking cavity can be obtained in real time.
- the vacuum device is controlled to perform evacuation at intervals or continuously.
- the pressure in the cooking cavity is less than or equal to a preset heating rate, and the vacuum device is controlled to stop vacuuming, thereby ensuring that the vacuum in the cooking cavity is maintained at the preset pressure.
- the cooking process of the cooking appliance may include a pre-treatment phase A1, a temperature-boiling phase A2, a high-temperature boiling phase A3, and a rice cooking phase A4.
- the heating device may be controlled to perform heating work to gradually increase the temperature in the cooking cavity (such as the curve X1 in FIG. 15), and enter when the temperature in the cooking cavity reaches the first temperature value T1. Boiling stage.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C. to allow the rice grains to fully absorb water.
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered.
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (such as the curve X2 in FIG. 15), so that the rice grains can more easily absorb water, or the vacuum device can be controlled not to perform vacuum That is, without reducing the pressure in the cooking cavity, the temperature increase is used to promote the water absorption of the rice grains.
- the vacuum may no longer be evacuated, and the pressure in the cooking chamber will gradually increase.
- the vacuum is continued to be maintained to maintain the pressure in the cooking cavity at the preset suction pressure, wherein the preset suction pressure is less than the standard atmospheric pressure.
- the heating device is controlled to perform the heating operation, that is, the heating device is in the "on” state, and the vacuum device is controlled to perform the vacuum, that is, the vacuum device is in the "on” state.
- the heating device can be controlled to perform the heating operation at intervals or continuously according to the heating speed requirement; while the vacuum device can no longer be turned on and the pressure in the cooking cavity gradually increases, or the vacuum device can also be adjusted according to The pressure in the cooking cavity is evacuated at intervals or continuously, and the pressure in the cooking cavity is maintained at a preset pressure.
- the temperature in the cooking cavity can be increased from the first temperature value T1 to the second temperature value T2 by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to make the cooking cavity negative. Pressing the vacuum, the cooking cavity generates boiling bubbles at a lower temperature, that is, when the rice is gelatinized but not adhered to a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the vacuum device is controlled to be closed and the pressure device is controlled to deflate the cooking cavity to return the cooking appliance to a normal pressure state and migrate to the high-temperature boiling stage A3.
- the vacuum device can be controlled to be always closed, and the heating device is controlled to heat at the first power to make the heating
- the device maintains a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state, ensuring that the rice is cooked.
- the process proceeds to the rice-cooking stage A4.
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at the second power to maintain the heating device at a preset rice cooking temperature.
- the preset rice temperature is greater than the first temperature value and less than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- the cooking control method of a specific embodiment of the present application may include, for example, starting cooking and entering a pre-treatment phase for 10 minutes, and controlling the temperature at 55 ° C. to make the rice sufficiently absorb water (ie, step S701).
- the temperature quickly reached 55 ° C within 10 minutes, so heating on and off was irregular after 55 ° C.
- After 10 minutes it enters the heating and boiling phase, and turns on heating and air extraction at the same time, until the detected vacuum in the cooking cavity rises sharply or reaches the preset closing pressure, the air extraction is stopped and the gas is released to return the cooking cavity to normal pressure cooking.
- the specific steps can be as follows:
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, for example, 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- a preset water absorption temperature for example, 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- S702 Determine whether the running time in the pre-processing phase reaches (that is, is greater than) a preset water absorption time, for example, 10 minutes.
- step S703 If yes, go to step S703; if no, go back to step S702.
- S703 Enter the heating and boiling phase, control the heating device to perform heating work, and control the vacuum device to evacuate the cooking cavity, that is, to turn on heating and vacuum at the same time.
- S704 Determine whether the state parameter of the cooking appliance satisfies a preset condition, for example, whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S705 If yes, go to step S705; if no, go back to step S703.
- S705 Control the vacuum device to shut down to stop gas extraction, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- S706 In the high-temperature boiling stage, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- the cooking control method may include, for example, entering a pre-treatment stage without temperature control after starting cooking (ie, step S801), and entering when the temperature reaches 60 ° C.
- step S801 entering when the temperature reaches 60 ° C.
- heating and air extraction are turned on at the same time, until the detected vacuum in the cooking cavity rises sharply or reaches the preset closing pressure, the air extraction is stopped and the gas is exhausted to return the cooking cavity to normal pressure cooking, and then stabilized by high temperature boiling After non-negative pressure cooking at the stage and the rice cooking stage, the cooking is finished.
- the specific steps can be as follows:
- the heating device In the pre-processing stage, the heating device is controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, that is, pre-heating water is absorbed without temperature control, so that the rice grains fully absorb water.
- S802 Determine whether the temperature in the cooking cavity reaches (ie, is greater than) a first temperature value, such as 60 ° C.
- step S803 If yes, go to step S803; if no, go back to step S802.
- S803 Enter the heating and boiling phase, control the heating device to perform heating work, and control the vacuum device to evacuate the cooking cavity, that is, to heat and evacuate at the same time.
- S804 Determine whether the state parameter of the cooking appliance satisfies a preset condition, for example, whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S805 If yes, go to step S805; if no, go back to step S803.
- S805 Control the vacuum device to shut down to stop vacuuming, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- S806 In the high-temperature boiling stage, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- the vacuum device is first controlled to evacuate the cooking cavity, and then the heating device is controlled to perform heating work so that the cooking cavity generates boiling bubbles.
- the cooking control method of the embodiment of the present application in the temperature-boiling stage, that is, from the first temperature value to the second temperature value, controlling the vacuum device to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity, so that The boiling temperature is lowered to the temperature where the rice grains have not started to gelatinize or have just started to gelatinize, that is, "low temperature boiling".
- the detached air bubbles generated by boiling disturb the rice grains, and the rice grains do not stick to each other under the disturbance to avoid agglomeration. To make rice grains more uniformly heated.
- the vacuum device is first controlled to evacuate the cooking cavity to reduce the pressure in the cooking cavity, and then the heating device is controlled to perform the heating work to increase the temperature in the cooking cavity, that is, the vacuum is first evacuated and then Heat.
- Vacuum can be used to quickly reduce the pressure in the cooking cavity, so that the gas in the water and the bottom bubble core can absorb the small amount of heat to reach the initial state of detachment and balance. Then, the heating is performed to better ensure that the bottom rice grains do not form excessive paste. A large number of air bubbles have formed at the bottom before the rice is detached, and the rice grains are not affected by the disturbance caused by the air bubbles, and the rice is finally heated uniformly.
- the vacuum device can be evacuated for a preset time t1, wherein the preset vacuum time is 0-20min, that is, 0 ⁇ t1 ⁇ 20min, to ensure the effect of low temperature boiling.
- the preset vacuum time is 0-20min, that is, 0 ⁇ t1 ⁇ 20min. It can be understood that if the low-temperature boiling time is too short, the boiling is insufficient, and the rice grains cannot be better avoided; if the low-temperature boiling time is too long, the cooking time is too long, which affects the user experience.
- the preset evacuation time is preferably 1 min.
- first controlling the vacuum device to evacuate the cooking cavity and then controlling the heating device to perform the heating work includes: controlling the heating device to perform when the vacuum device's vacuuming time reaches a preset vacuuming time
- the heating operation for example, controls the heating device to perform the heating operation at intervals or continuously.
- the preset evacuation time can be 0-20min.
- the vacuum device can be controlled to reduce the pressure in the cooking cavity.
- the heating device can be controlled to heat to cause boiling in the cooking cavity. In this way, it is better to ensure that a large number of air bubbles are formed at the bottom of the bottom rice grains before the excessive gelatinization is formed.
- the rice grains are not affected by the disturbance caused by the air bubble separation, and the rice is uniformly heated.
- the vacuum device in the process of controlling the heating device to perform the heating work, is also controlled to continue to perform the vacuum.
- the vacuum device when the cooking appliance enters the heating and boiling phase, the vacuum device is first controlled to perform vacuum to reduce the pressure in the cooking cavity, and then the heating device is controlled to perform the heating work, and at the same time, the vacuum device can be controlled to continue to perform the vacuum vacuum.
- heating and evacuation can be performed simultaneously after evacuation.
- "simultaneously heating and vacuuming” can mean that the heating device and the vacuum device are activated simultaneously for a period of time.
- the heating device can be controlled to start to heat the cooking cavity.
- the vacuum device can be started at any time during the heating process, for example, at When the heating device is started, the vacuum device is controlled to start to evacuate the cooking cavity, or the vacuum device is controlled to start after the heating device is started for a period of time.
- the vacuum device and the heating device can be turned off at the same time, or they can be turned off at the same time, that is, the heating device is turned off first and then the vacuum device is turned off or the vacuum device is turned off first and then the heating device is turned off.
- the heating device may be controlled to continue heating or not to be heated after the first vacuum is applied and then heated or the first vacuum is applied to both the heating and the vacuum, and the vacuum device may be controlled to continue to perform the vacuum or not.
- Evacuate whether the heating device and the vacuum device continue to work can be determined according to the actual needs of the cooking process.
- the heating device may be controlled to perform the heating operation at intervals or continuously according to the requirement of the heating rate; and the vacuum device may also perform the vacuum at intervals or continuously to perform the vacuum according to the pressure in the cooking cavity.
- controlling the heating device to perform the heating work includes:
- the heating device is controlled to perform heating work at intervals or continuously.
- the heating rate can be obtained through experiments and is preset in the factory.
- the temperature in the cooking cavity can be obtained in real time, and the rate of change of the temperature in the cooking cavity within a preset sampling time can be determined.
- the change rate of the temperature in the cavity during the preset sampling time is greater than or equal to the preset heating rate, and the heating device is controlled to stop the heating work.
- Speed to control the heating device to perform heating work at intervals or continuously, so as to ensure that the temperature in the cooking cavity gradually increases according to a preset heating rate.
- controlling the vacuum device to perform vacuum extraction includes:
- the vacuum device is controlled to perform evacuation at intervals or continuously.
- the pressure in the cooking cavity can be obtained in real time after the vacuum is first applied and then heated or the vacuum is applied after the first heating and the vacuum are simultaneously applied.
- the vacuum device is controlled to perform vacuum extraction at intervals.
- the vacuum is continuously performed.
- the vacuum device is controlled to stop vacuuming, thereby ensuring that the vacuum in the cooking cavity is maintained at the preset pressure.
- the cooking process of the cooking appliance may include a pre-treatment phase A1, a temperature-boiling phase A2, a high-temperature boiling phase A3, and a rice cooking phase A4.
- the heating device may be controlled to perform a heating operation to gradually increase the temperature in the cooking cavity (as shown by the curve Q1 in FIG. 18), and enter when the temperature in the cooking cavity reaches the first temperature value T1. Boiling stage.
- the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C. to allow the rice grains to fully absorb water.
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered.
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown by curve Q2 in FIG. 18), so that the rice grains can absorb water more easily, or the vacuum device can be controlled not to perform vacuum That is, without reducing the pressure in the cooking cavity, the temperature increase is used to promote the water absorption of the rice grains.
- the vacuum may no longer be evacuated, and the pressure in the cooking chamber will gradually increase.
- the vacuum is continued to be maintained to maintain the pressure in the cooking cavity at the preset suction pressure, wherein the preset suction pressure is less than the standard atmospheric pressure.
- the heating and boiling phase A2 first control the vacuum device to perform vacuuming, that is, the vacuum device is in the "on” state and the heating device is not performing heating work, that is, the heating device is in the "off” state.
- the heating device is controlled to perform During heating operation, the heating device is in the "on” state, and at the same time, the vacuum device is controlled to perform the vacuum. Heating operation continuously or continuously; while the vacuum device can no longer be turned on and the pressure in the cooking cavity gradually increases, or the vacuum device can also perform vacuum extraction or continuous vacuum extraction according to the pressure in the cooking cavity The pressure in the cooking cavity is maintained at a preset pressure.
- the temperature in the cooking cavity can be increased from the first temperature value T1 to the second temperature value T2 by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to make the cooking cavity negative. Pressing the vacuum, the cooking cavity generates boiling bubbles at a lower temperature, that is, when the rice is gelatinized but not adhered to a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the vacuum device is controlled to be closed and the pressure device is controlled to deflate the cooking cavity to return the cooking appliance to a normal pressure state and migrate to the high-temperature boiling stage A3.
- the vacuum device can be controlled to be always closed, and the heating device is controlled to heat at the first power to make the heating
- the device maintains a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state, ensuring that the rice is cooked.
- the process proceeds to the rice-cooking stage A4.
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at the second power to maintain the heating device at a preset rice cooking temperature.
- the preset rice temperature is greater than the first temperature value and less than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- the cooking control method of a specific embodiment of the present application may include, for example, starting cooking to enter a pre-processing stage for 10 minutes, and controlling the temperature at 55 ° C. to make the rice sufficiently absorb water (ie, step S901).
- the temperature quickly reached 55 ° C within 10 minutes, so heating on and off was irregular after 55 ° C.
- After 10 minutes it enters the heating and boiling phase, and then evacuates the cooking cavity for 1 minute and then heats it, and continues to evacuate while heating, until the detected vacuum in the cooking cavity rises sharply or stops when it reaches the preset closing pressure. Extract and deflate to return the cooking cavity to normal pressure cooking, and then finish cooking after non-negative pressure cooking in the high-temperature stable boiling phase and rice cooking phase.
- the specific steps can be as follows:
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- a preset water absorption temperature such as 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- S902 Determine whether the running time in the pre-processing phase reaches (that is, is greater than) a preset water absorption time, for example, 10 minutes.
- step S903 If yes, go to step S903; if no, go back to step S902.
- S903 Enter the heating and boiling phase, first control the vacuum device to evacuate the cooking cavity, and then control the heating device to perform heating after the vacuum is set for a predetermined vacuum time, for example, 1 minute, that is, first vacuum and then heat.
- S905 Determine whether the state parameter of the cooking appliance satisfies a preset condition, for example, whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S906 If yes, go to step S906; if no, go back to step S903.
- S906 Control the vacuum device to shut down to stop gas extraction, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- the heating device In the high-temperature boiling stage, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- a cooking control method may include, for example, entering a temperature-free pre-treatment stage after starting cooking (ie step S1001), and entering when the detected temperature reaches a gelatinization temperature of 60 ° C. During the heating and boiling phase, first extract air for 1 minute and then heat it until the detected vacuum in the cooking cavity rises sharply or reaches the preset closing pressure. Stop the extraction and deflate to restore the cooking cavity to normal pressure cooking. After non-negative pressure cooking in the high-temperature stable boiling stage and rice cooking stage, the cooking is finished.
- the specific steps can be as follows:
- the heating device In the pre-processing stage, the heating device is controlled to perform heating work so that the temperature in the cooking cavity is gradually increased, that is, pre-heating water is absorbed without temperature control, so that the rice grains fully absorb water.
- S1002 Determine whether the temperature in the cooking cavity reaches (ie, is greater than) a first temperature value, such as 60 ° C.
- step S1003 If yes, go to step S1003; if no, go back to step S1002.
- S1003 Enter the heating and boiling phase, first control the vacuum device to evacuate the cooking cavity, and then control the heating device to perform heating after the vacuum is set for a predetermined vacuum time, such as 1 minute, that is, first vacuum and then heat.
- a predetermined vacuum time such as 1 minute
- S1005 Determine whether the state parameter of the cooking appliance satisfies a preset condition, for example, whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S1006 If yes, go to step S1006; if no, go back to step S1003.
- S1006 Control the vacuum device to shut down to stop vacuuming, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- the heating device In the high-temperature boiling stage, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- the heating device In the rice-cooking phase, the heating device is controlled to continue heating at a second power, where the second power is less than the first power.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the heating device when the cooking appliance enters a temperature-boiling stage, the heating device is first controlled to perform heating work, and then the vacuum device is controlled to evacuate the cooking cavity to generate boiling bubbles in the cooking cavity.
- the cooking control method of the embodiment of the present application in the temperature-boiling stage, that is, from the first temperature value to the second temperature value, controlling the vacuum device to evacuate the cooking cavity to form a negative pressure vacuum in the cooking cavity, so that The boiling temperature is lowered to the temperature where the rice grains have not started to gelatinize or have just started to gelatinize, that is, "low temperature boiling".
- the detached air bubbles generated by boiling disturb the rice grains, and the rice grains do not stick to each other under the disturbance to avoid agglomeration. To make rice grains more uniformly heated.
- the heating device is first controlled to perform heating work so as to increase the temperature in the cooking cavity, and then the vacuum device is controlled to evacuate the cooking cavity to reduce the pressure in the cooking cavity, that is, the heating is performed first. Vacuum.
- the temperature in the cooking cavity is reduced by evacuating since the temperature has just entered the boiling stage (such as the pressure in the cooking cavity will reach 70kPa), the boiling point is still high and premature. Extraction may cause the saturated gas and the bottom bubble core in the cooking cavity to detach from the liquid surface prematurely, which is not conducive to the use of bubbles in the initial stage of boiling.
- the heating device can perform the heating operation for a preset heating time t2, wherein the preset heating time is 0-20min, that is, 0 ⁇ t2 ⁇ 20min, and the vacuum device is subsequently controlled to perform vacuuming.
- the preset heating time is preferably 2 min.
- controlling the heating device to perform heating work first and then controlling the vacuum device to evacuate the cooking cavity includes: controlling the vacuum device to perform evacuation when the heating device performs heating work for a preset heating time.
- Vacuum for example, the vacuum device is controlled to perform evacuation at intervals or continuously.
- the preset heating time can be 0-20min.
- the heating device is also controlled to continue the heating work.
- the heating device when the cooking appliance enters the heating and boiling phase, the heating device is first controlled to perform heating work to increase the temperature in the cooking cavity, and then the vacuum device is controlled to continue to evacuate, and the heating device can be controlled to be heated at the same time jobs.
- heating and vacuum can be performed simultaneously after heating first.
- “simultaneously heating and vacuuming” can mean that the heating device and the vacuum device are activated simultaneously for a period of time.
- the vacuum device may be controlled to start to evacuate the cooking cavity.
- the heating device may be started at any time during the vacuuming process, for example, at When the vacuum device is started, the heating device is controlled to start to heat the cooking cavity, or the heating device is controlled to start after the vacuum device is started for a period of time.
- the vacuum device and the heating device can be turned off at the same time, or they can be turned off at the same time, that is, the heating device is turned off first and then the vacuum device is turned off or the vacuum device is turned off first and then the heating device is turned off.
- the heating device may be controlled to continue heating or not to be heated after the first heating is followed by the vacuum or the first heating is followed by the simultaneous heating and the vacuum, and the vacuum device may be controlled to continue to perform the vacuum or not.
- Vacuum whether the heating device and the vacuum device continue to work can be determined according to the actual needs of the cooking process.
- the heating device can be controlled to perform the heating operation at intervals or continuously according to the demand of the heating rate; and the vacuum device can also perform the vacuum at intervals or continuously to perform the vacuum according to the pressure in the cooking cavity.
- controlling the heating device to perform the heating work includes:
- the heating device is controlled to perform heating work at intervals or continuously.
- the heating rate can be obtained through experiments and is preset in the factory.
- the temperature in the cooking cavity can be obtained in real time after heating and then vacuuming or heating and vacuuming at the same time, and determine the rate of change of the temperature in the cooking cavity within a preset sampling time.
- the change rate of the temperature in the preset sampling time is greater than or equal to the preset heating rate, and the heating device is controlled to stop the heating work.
- the change rate of the temperature in the cooking cavity during the preset sampling time is less than the preset heating rate , Control the heating device to perform heating work at intervals or continuously, thereby ensuring that the temperature in the cooking cavity gradually increases according to a preset heating rate.
- controlling the vacuum device to perform vacuum extraction includes:
- the vacuum device is controlled to perform evacuation at intervals or continuously.
- the pressure in the cooking cavity can be obtained in real time after heating and then evacuating or heating and vacuuming at the same time.
- the vacuum device is controlled to perform vacuuming at intervals or The vacuum is continuously performed.
- the vacuum device is controlled to stop vacuuming, thereby ensuring that the vacuum in the cooking cavity is maintained at the preset pressure.
- the cooking process of the cooking appliance may include a pre-treatment stage A1, a temperature-boiling stage A2, a high-temperature boiling stage A3, and a rice cooking stage A4.
- the heating device in the pre-processing stage A1, can be controlled to perform heating work to gradually increase the temperature in the cooking cavity (as shown by the curve Q1 in FIG. 21), and enter when the temperature in the cooking cavity reaches the first temperature value T1. Boiling stage.
- the heating device in the pre-processing phase A1, the running time of the pre-processing phase is recorded, and the heating device is controlled to perform the heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, such as 55 ° C. to allow the rice grains to fully absorb water.
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity continues to rise, and when the temperature in the cooking cavity reaches the first temperature value, the heating and boiling phase is entered.
- the vacuum device can be controlled to evacuate to reduce the pressure in the cooking cavity (as shown by the curve Q2 in FIG. 21), so that the rice grains are more likely to absorb water, or the vacuum device can be controlled not to be evacuated. Vacuum, that is, does not reduce the pressure in the cooking cavity, uses the temperature increase to promote the rice grains to absorb water.
- the vacuum may no longer be evacuated, and the pressure in the cooking chamber will gradually increase.
- the vacuum is continued to be maintained to maintain the pressure in the cooking cavity at the preset suction pressure, wherein the preset suction pressure is less than the standard atmospheric pressure.
- the heating and boiling phase A2 first control the heating device to perform the heating work, that is, the heating device is in the "on” state and the vacuum device is not in the vacuum state, that is, the vacuum device is in the "off” state. After the preset heating time is reached, the heating device is controlled to perform heating The heating device is in the "on” state when working, and the vacuum device is controlled to perform vacuuming, that is, the vacuum device is in the "on” state. After heating and vacuuming at the same time, the heating device can be controlled at intervals according to the heating rate.
- Heating work or continuous heating work while the vacuum device can no longer be turned on and the pressure in the cooking cavity gradually increases, or the vacuum device can also be used to evacuate at intervals according to the pressure in the cooking cavity or continuously perform vacuuming and cooking The pressure in the cavity is maintained at a preset pressure.
- the temperature in the cooking cavity can be increased from the first temperature value T1 to the second temperature value T2 by controlling the heating device, and the vacuum device is controlled to evacuate the cooking cavity to make the cooking cavity negative. Pressing the vacuum, the cooking cavity generates boiling bubbles at a lower temperature, that is, when the rice is gelatinized but not adhered to a mass, thereby ensuring that the rice grains do not agglomerate and keep loose heat.
- the vacuum device is controlled to be closed and the pressure device is controlled to deflate the cooking cavity to return the cooking appliance to a normal pressure state and migrate to the high-temperature boiling stage A3.
- the vacuum device can be controlled to be always closed, and the heating device is controlled to heat at the first power to make the heating
- the device maintains a preset boiling temperature, such as a temperature near the boiling point of atmospheric pressure or a temperature higher than 98 ° C, so that the rice water in the cooking cavity maintains a high-temperature boiling state, ensuring that the rice is cooked.
- the process proceeds to the rice-cooking stage A4.
- the vacuum device can be controlled to be always turned off, and the heating device is controlled to be heated at the second power to maintain the heating device at a preset rice cooking temperature.
- the preset rice temperature is greater than the first temperature value and less than the second temperature value, so that the aroma and sweetness of the rice are more sufficient.
- the second power is smaller than the first power.
- a cooking control method of a specific embodiment of the present application may include, for example, starting cooking into a pre-treatment phase for 10 minutes, and controlling the temperature at 55 ° C. to make the rice sufficiently absorb water (ie, step S1101).
- the temperature quickly reached 55 ° C within 10 minutes, so heating on and off was irregular after 55 ° C. After 10 minutes, it enters the heating and boiling phase.
- the specific steps can be as follows:
- the heating device is controlled to perform heating work so that the temperature in the cooking cavity is maintained at a preset water absorption temperature, for example, 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- a preset water absorption temperature for example, 55 ° C, that is, 55 ° C temperature control is performed to preheat water absorption, so that the rice grains fully absorb water.
- S1102 Determine whether the running time of the pre-processing phase reaches (that is, is greater than) a preset water absorption time, for example, 10 minutes.
- step S1103 If yes, go to step S1103; if no, go back to step S1102.
- S1103 Enter the heating and boiling phase, first control the heating device to perform the heating work, and then control the vacuum device to evacuate the cooking cavity after heating for a preset heating time, for example, 2 minutes, that is, first heat and then evacuate.
- S1105 Determine whether the state parameter of the cooking appliance satisfies a preset condition, such as whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S1106 If yes, go to step S1106; if no, go back to step S1103.
- S1106 Control the vacuum device to shut down to stop gas extraction, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- the heating device In the high-temperature boiling stage, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- the cooking control method may include, for example, entering a temperature-free pre-treatment stage after starting cooking (ie, step S1201), and entering when the temperature reaches the gelatinization temperature of 60 ° C.
- step S1201 entering when the temperature reaches the gelatinization temperature of 60 ° C.
- step S1201 first heat for 2 minutes and then pump down to reduce the air pressure in the cooking cavity, until the detected vacuum in the cooking cavity rises sharply or reaches the preset closing pressure, stop pumping and deflate to return the cooking cavity to normal pressure.
- non-negative pressure cooking after the high-temperature stable boiling phase and the rice-cooking phase is completed, and the cooking is finished.
- the specific steps can be as follows:
- the heating device In the pre-processing stage, the heating device is controlled to perform heating work to gradually increase the temperature in the cooking cavity, that is, pre-heating water is absorbed without temperature control, so that the rice grains fully absorb water.
- S1202 Determine whether the temperature in the cooking cavity reaches (that is, is greater than) the first temperature value.
- step S1203 If yes, go to step S1203; if no, go back to step S1202.
- S1203 Enter the heating and boiling phase, first control the heating device to perform the heating work, and then control the vacuum device to evacuate the cooking cavity after heating for a preset heating time, such as 2 minutes, that is, first heat and then evacuate.
- S1205 Determine whether the state parameter of the cooking appliance satisfies a preset condition, such as whether the pressure in the cooking cavity reaches (that is, is greater than) a preset closing pressure (for example, 80 kPa).
- a preset closing pressure for example, 80 kPa
- step S1206 If yes, go to step S1206; if no, go back to step S1203.
- S1206 Control the vacuum device to shut down to stop vacuuming, and control the pressure device to deflate the cooking cavity, return the cooking utensil to the normal pressure state, and migrate to the high-temperature boiling stage.
- the heating device In the high-temperature boiling phase, the heating device is controlled to continue heating with the first power.
- the first power is smaller than the heating power of the heating device in the temperature-boiling stage.
- the vacuum device is closed prematurely and the pressure relief device is opened during the temperature-boiling stage, the pressure in the cooking cavity is consistent with the external atmospheric pressure, and the rice water cannot boil well. If the vacuum device is turned off too late, the water vapor generated after boiling will be sucked into the vacuum device, such as a vacuum pump, and discharged. The humidity in the cooking cavity will drop, and some substances will remain in the vacuum pump, which will easily breed bacteria. Based on this, it is necessary to stop the extraction of the gas in the cooking cavity at the appropriate time to achieve better boiling and tumbling, and at the same time to prevent the loss of water vapor generated after boiling and inhalation of the vacuum device to prevent breeding of bacteria.
- the vacuum device is turned off too late, the water vapor generated after boiling will be sucked into the vacuum device, such as a vacuum pump, and discharged. The humidity in the cooking cavity will drop, and some substances will remain in the vacuum pump, which will easily breed bacteria. Based on this, it is necessary to stop the extraction of the gas in the cooking cavity at the
- the cooking cavity is evacuated by controlling the vacuum device so that the cooking cavity generates low-temperature boiling.
- a large amount of steam is generated in the cooking cavity to make cooking
- the pressure in the cavity cannot be maintained at a low air pressure value, such as a preset pressure.
- the pressure in the cooking cavity will always rise. When the pressure in the cooking cavity rises quickly, the vacuum will be stopped until the cooking is completed.
- the vacuum device is controlled to be turned off according to a temperature in the cooking cavity or a temperature trend in the cooking cavity.
- controlling the closing of the vacuum device according to the temperature in the cooking cavity includes: controlling the vacuum device to be closed when the temperature in the cooking cavity is greater than or equal to a preset closing temperature.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that the extraction of the gas in the cooking cavity can be stopped at an appropriate time. , To achieve better boiling and tumbling, at the same time to prevent the loss of water vapor generated after boiling and suction into the vacuum device, to prevent the breeding of bacteria.
- controlling the turning off of the vacuum device according to a temperature change trend in the cooking cavity includes:
- the vacuum device is controlled to be turned off.
- the ratio of the temperature difference between two adjacent temperatures to the preset sampling time is the rising rate of the temperature in the cooking cavity during the preset sampling time.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity rises less than the preset temperature rise rate within a preset sampling time, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that it can be at an appropriate time. Stop extracting the gas in the cooking cavity to achieve better boiling and tumbling, at the same time prevent the loss of water vapor generated after boiling and suck into the vacuum device, and prevent the breeding of bacteria.
- closing the vacuum device can turn off the vacuum pump and close the solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset shutdown temperature or the preset temperature rise rate is determined according to the amount of rice water in the cooking cavity.
- the preset shut-off temperature or the preset temperature rise rate of the vacuum device is different when the amount of water in the meter is stopped and the vacuum is turned off. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing temperature or the preset temperature rising rate can be determined according to the rice water in the cooking cavity during the heating and boiling phase.
- the preset shutdown temperature has a positive correlation with the amount of rice water, that is, the preset shutdown temperature increases as the amount of rice water increases, and the preset temperature rise rate has a negative correlation with the amount of rice water, that is, the preset shutdown temperature increases with the amount of rice water. Increase and decrease.
- the amount of rice water can be determined in the pre-processing stage, for example, the temperature in the cooking cavity can be raised from a first set temperature, such as normal temperature to a second set temperature, by controlling the heating device, and recorded from the first When the set temperature rises to the second set temperature, the amount of rice water is determined according to the time. Or you can determine the amount of rice water by weighing before cooking.
- a first set temperature such as normal temperature to a second set temperature
- the vacuum device is controlled to be turned off according to the running time of the temperature-boiling phase until the cooking appliance enters the high-temperature boiling phase.
- controlling the closing of the vacuum device according to the running time of the heating and boiling phase includes controlling the turning off of the vacuum device when the running time of the heating and boiling phase is greater than or equal to a preset closing time.
- the vacuum device in the temperature-boiling phase, when the running time of the temperature-boiling phase is greater than or equal to the preset closing time, the vacuum device is turned off to stop extracting the gas in the cooking cavity, so that the extraction of the Gas, to achieve better boiling and tumbling, while preventing the loss of water vapor generated after boiling and sucking into the vacuum device to prevent breeding of bacteria.
- closing the vacuum device can turn off the vacuum pump and close the solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing time is determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing time can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the vacuum device is controlled to be turned off according to the pressure in the cooking cavity or the pressure trend in the cooking cavity until the cooking appliance enters the high-temperature boiling stage.
- controlling the closing of the vacuum device according to the pressure in the cooking cavity includes: controlling the vacuum device to close when the pressure in the cooking cavity rises to be greater than or equal to a preset closing pressure.
- controlling the closing of the vacuum device according to a change trend of the pressure in the cooking cavity includes:
- the vacuum device When the pressure rise rate is greater than the preset pressure rise rate within the preset sampling time, the vacuum device is controlled to be turned off.
- the ratio of the pressure difference between two adjacent pressures and the preset sampling time is the rising rate of the pressure in the cooking cavity during the preset sampling time.
- the vacuum device in the temperature-boiling phase, when the pressure in the cooking cavity rises faster than the preset pressure in the preset sampling time, the vacuum device is turned off to stop the extraction of the gas in the cooking cavity, so that it can be at an appropriate time. Stop extracting the gas in the cooking cavity to achieve better boiling and tumbling, at the same time prevent the loss of water vapor generated after boiling and suck into the vacuum device, and prevent the breeding of bacteria.
- closing the vacuum device can turn off the vacuum pump and close the solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing pressure or the preset pressure rising rate is determined according to the amount of rice water in the cooking cavity.
- the preset closing pressure or the rate of rising of the preset pressure of the vacuum device is different depending on the amount of water in the meter. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing pressure or the preset pressure rising rate can be determined according to the rice water in the cooking cavity during the heating and boiling phase.
- the preset closing pressure has a positive correlation with the amount of rice water, that is, the preset closing pressure increases as the amount of rice water increases.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- At least two control vacuum devices are turned off according to at least two of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling phase, until the cooking appliance enters the high temperature boiling phase.
- controlling the vacuum device to shut down include: when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is in a pre- When a pressure range is set, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is within a preset pressure range, the vacuum device is turned off to stop extracting the gas in the cooking cavity. Stop the extraction of gas in the cooking cavity at the appropriate time to achieve better boiling and tumbling, and at the same time prevent the loss of water vapor generated after boiling and inhalation of the vacuum device to prevent breeding of bacteria.
- closing the vacuum device can turn off the vacuum pump and close the solenoid valve.
- the cooking control method of the cooking appliance further includes:
- the preset closing temperature and the preset pressure range are determined according to the amount of rice water in the cooking cavity.
- the preset closing temperature of the vacuum device is different when the amount of water in the meter is stopped and the vacuum device is turned off. That is, the amount of rice water in the cooking cavity can be determined before the cooking appliance performs cooking, and in the heating and boiling phase, the preset shutdown temperature can be determined according to the amount of rice water in the cooking cavity. In addition, the preset pressure range varies with the amount of water.
- the preset shutdown temperature has a positive correlation with the amount of rice water, that is, the preset shutdown temperature increases as the amount of rice water increases.
- the At least two of the pressure in the cooking cavity and the operating time of the heating and boiling phase controlling the vacuum device to shut down include: when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the When the pressure is in a preset pressure range, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the operating time of the temperature-boiling phase is greater than or equal to a preset closing time and the pressure in the cooking cavity is within a preset pressure range, the vacuum device is turned off to stop extracting the gas in the cooking cavity, thereby, The gas in the cooking cavity can be stopped at the right moment to achieve better boiling and tumbling. At the same time, it can prevent the loss of water vapor generated after boiling and suck into the vacuum device to prevent the breeding of bacteria.
- the cooking control method of the cooking appliance further includes:
- the preset closing time and the preset pressure range are determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the cooking appliance performs cooking, and in the heating and boiling phase, the preset closing time can be determined according to the amount of rice water in the cooking cavity. In addition, the preset pressure range varies with the amount of water.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the vacuum device when the vacuum device is controlled to be turned off according to the running time of the heating and boiling stage and the temperature in the cooking cavity, the temperature, At least two of the pressure in the cooking cavity and the operating time of the heating and boiling phase controlling the vacuum device to shut down include: when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the When the temperature is in a preset temperature range, the vacuum device is controlled to be turned off.
- the vacuum device in the temperature-boiling phase, when the running time of the temperature-boiling phase is greater than or equal to a preset off time and the temperature in the cooking cavity is within a preset temperature range, the vacuum device is turned off to stop extracting gas in the cooking cavity, The gas in the cooking cavity can be stopped at the right moment to achieve better boiling and tumbling. At the same time, it can prevent the loss of water vapor generated after boiling and suck into the vacuum device to prevent the breeding of bacteria.
- the cooking control method of the cooking appliance further includes:
- the preset closing time and the preset temperature range are determined according to the amount of rice water in the cooking cavity.
- the preset closing time of stopping the vacuum device and closing the vacuum device is different. That is, the amount of rice water in the cooking cavity can be determined before the heating and boiling phase, and the preset closing time can be determined according to the amount of rice water in the cooking cavity during the heating and boiling phase.
- the preset closing time has a positive correlation with the amount of rice water, that is, the preset closing time increases as the amount of rice water increases.
- the cooking control method for a cooking appliance when the temperature in the cooking cavity reaches a first temperature value, it is determined that the cooking appliance is in a boiling phase, and when the cooking appliance is in a boiling phase, the vacuum device is controlled. Vacuum the cooking cavity at least once so that when the temperature in the cooking cavity reaches the first temperature value or exceeds a preset threshold of the first temperature value, boiling bubbles are generated, so that the rice grains are loosened and not sticky by the disturbance of the low temperature boiling bubbles. To ensure the heating uniformity of the rice grains, the cooked rice will have a uniform taste, more flavor and sweetness.
- the cooking control method for a cooking appliance further includes: after the temperature in the cooking cavity reaches a first temperature value, controlling the vacuum device to reduce the pressure in the cooking cavity to a preset pressure, wherein, The preset pressure is less than atmospheric pressure.
- the preset pressure may be determined according to the gelatinization temperature of the rice. More specifically, the preset pressure may be 20 kPa to 60 kPa. The preset pressure may be preferably 40 kPa.
- the vacuum device may be continuously evacuated by controlling the vacuum device to maintain the pressure in the cooking cavity at the preset pressure, or the vacuum device may no longer be controlled.
- the cooking cavity is evacuated to make the pressure in the cooking cavity, and the pressure in the cooking cavity gradually increases as the temperature rises.
- Vacuuming is performed to reduce the pressure in the cooking cavity to a preset pressure, wherein the second pressure value is greater than the preset pressure, for example, the second pressure value may be 80 kPa or 101 kPa at normal pressure.
- the cooking control method for a cooking appliance when the temperature in the cooking cavity reaches a first temperature value, it is determined that the cooking appliance is in a boiling phase, and when the cooking appliance is in a boiling phase, the vacuum device is controlled. Evacuate the cooking cavity so that when the temperature in the cooking cavity reaches the first temperature value or exceeds a preset threshold of the first temperature, boiling bubbles are generated, so that the rice grains are loosened and non-sticky by the disturbance of the low-temperature boiling bubbles to ensure the rice grains.
- the uniformity of heating results in the cooked rice having a uniform taste, more flavor and sweetness.
- the vacuum device is controlled to be closed according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling stage, which can achieve better boiling and tumbling while preventing water vapor generated after boiling and inhaling vacuum.
- Device to prevent breeding of bacteria is controlled to be closed according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling stage, which can achieve better boiling and tumbling while preventing water vapor generated after boiling and inhaling vacuum.
- controlling the heating device to perform heating work and controlling the vacuum device to evacuate the cooking cavity includes: controlling the heating device to perform heating work and controlling the vacuum device to appear in the cooking cavity at least once When the temperature of the cooking cavity increases, the pressure in the cooking cavity decays, so that when the temperature in the cooking cavity reaches a first temperature value or is greater than a preset threshold of the first temperature value, boiling bubbles are generated.
- the first integrated value between the first temperature point and the second temperature point of the cooking ingredients in the pressure of the inner pressure of the pot and the first temperature point and the second temperature of the pressure outside the pot are controlled.
- the ratio of the second integral value between the points is smaller than the set ratio threshold.
- the set ratio threshold is equal to or less than 1, the second temperature point is greater than the first temperature point, and both the first temperature point and the second temperature point are less than the boiling temperature corresponding to the pressure value outside the pot.
- the boiling temperature corresponding to the pressure outside the pot P0 may be 100 ° C, that is, both the first temperature point t1 and the second temperature point t2 may be less than 100 ° C.
- the ratio of the first integrated value S1 to the second integrated value S2 can accurately determine the magnitude of the deviation between the pressure value Pe inside the pot and the pressure value P0 outside the pot.
- the ratio of the first integrated value S1 to the second integrated value S2 The smaller the value, the larger the deviation between the pressure value Pe inside the pot and the pressure value P0 outside the pot, that is, the smaller the pressure value Pe inside the pot.
- the air pressure value Pe in the pan can be accurately controlled to be less than a certain air pressure value, so that bubbles can be generated at a lower temperature in the cooking appliance, thereby being applied in the application
- a certain set value that is, a set threshold value
- the cooking ingredients can be disturbed by air bubbles at a lower temperature to prevent the cooking ingredients from sticking due to gelatinization, forming dense air bubble channels, enhancing convective heat transfer, and evenly heating the cooking ingredients.
- the nutrients of the ingredients can be fully dissolved in the soup water to produce a better flavor and taste, and at the same time, the nutritional value of the food cooked by the cooking appliance is greatly improved.
- the first temperature point t1 and the second temperature point t2 are both greater than the difference between the gelatinization temperature of the cooking ingredients and the set difference temperature, or the first temperature point t1 and the second temperature The point t2 is greater than the temperature value corresponding to the start of pumping time, or both the first temperature point t1 and the second temperature point t2 are larger than the temperature value corresponding to the start of heating.
- the set ratio threshold may be equal to or less than 0.8; or the set ratio threshold may be equal to or less than 0.6; or the set ratio threshold may be equal to or less than 0.5; or the set ratio threshold may be equal to Or less than 0.4.
- the first temperature point t1 and the second temperature point t2 may be selected within a certain set range.
- the control method of the cooking appliance is also different.
- the first temperature point t1 and the second temperature point t2 are both greater than the difference between the gelatinization temperature of the cooking ingredients and the set difference temperature.
- the gelatinization temperature of the cooking ingredients can be calibrated according to the gelatinization characteristics of the cooking ingredients.
- the gelatinization temperature of the cooking ingredients (such as rice) can be 62 ° C;
- the set difference temperature can be calibrated according to the actual situation, such as ,
- the set difference temperature can be 2 ° C. That is, the first temperature point t1 and the second temperature point t2 are both greater than the difference between the gelatinization temperature and the set difference temperature of the cooking ingredients, and both are less than the boiling temperature corresponding to the pressure outside the pot.
- the first temperature point t1 and the second temperature point t2 are both greater than 60 ° C, and both are less than 100 ° C, so that the boiling point of rice water can be accurately and effectively controlled in a lower temperature range during cooking, and the cooking ingredients are prevented from gelling. And sticky.
- the pressure value Pe in the pot is smaller than the pressure value P0 outside the pot, that is, there is a certain negative pressure value in the pot, and the boiling point of the liquid in the pot Decreased, the bubbles produced by boiling slightly increase compared with those produced by boiling under normal atmospheric pressure.
- the uniformity of heating of cooking ingredients needs to be improved.
- the pressure value Pe in the pot is further reduced, that is, the negative pressure value in the pot is further reduced, and the boiling point of the liquid in the pot is lower than that in Bubbles are generated earlier under normal atmospheric pressure, and the bubbles generated by boiling are slightly increased than those generated by boiling under normal atmospheric pressure, and the cooking ingredients can be basically heated uniformly
- the pressure value Pe in the pot is further reduced, that is, the negative pressure value in the pot is further reduced, the boiling point of the liquid in the pot is reduced, and the temperature in the pot is reduced.
- the number of bubbles and the boiling time of the liquid during boiling increase significantly, and the cooking ingredients can be basically heated uniformly.
- the air pressure value Pe in the pot is further reduced, that is, the negative pressure value in the pot is further reduced.
- the rice water in the pot may boil when the ingredients do not begin to gelatinize or are about to begin to gelatinize (ie, the ingredients do not begin to stick), and the cooking ingredients are evenly heated.
- the air pressure value Pe in the pot is further reduced, so that the negative pressure value in the pot is at an ultra-low level, so that the pot temperature is low It can produce violent boiling, which can effectively prevent the cooking ingredients from sticking, so that the cooking ingredients are evenly heated.
- the ratio of the first integrated value S1 to the second integrated value S2 can be controlled. Less than 0.8, preferably, the ratio of the first integrated value S1 to the second integrated value S2 can be controlled Less than 0.4.
- the negative pressure value in the pot can be effectively reduced, so that air bubbles can be generated in the cooking appliance under low temperature conditions, which can effectively prevent the cooking ingredients from sticking, form dense air bubble channels, and strengthen convective heat transfer to make the cooking ingredients Heat evenly.
- both the first temperature point and the second temperature point are greater than a temperature value corresponding to the start time of the suction.
- the ratio of the first integrated value S1 to the second integrated value S2 Less than a certain set value (for example, it can be less than 0.8, preferably less than 0.4), which can effectively reduce the negative pressure value in the pot, so that air bubbles can be generated in the cooking appliance under low temperature conditions, and can effectively avoid cooking Ingredients stick together, forming dense air bubble channels, enhancing convective heat transfer, uniformly heating the cooking ingredients, and evenly heating the cooking ingredients.
- a certain set value for example, it can be less than 0.8, preferably less than 0.4
- both the first temperature point and the second temperature point are greater than a temperature value corresponding to the heating start time.
- the ratio of the first integrated value S1 to the second integrated value S2 Less than a certain set value (for example, it can be less than 0.8, preferably less than 0.4), which can effectively reduce the negative pressure value in the pot, so that air bubbles can be generated in the cooking appliance under low temperature conditions, and can effectively avoid cooking Ingredients stick together, forming dense air bubble channels, enhancing convective heat transfer, uniformly heating the cooking ingredients, and evenly heating the cooking ingredients.
- a certain set value for example, it can be less than 0.8, preferably less than 0.4
- the first temperature point is equal to the initial value of the temperature in the pot.
- the ratio of the first integral value S1 to the second integral value S2 Less than 0.1, and greater than 0, that is, control
- the temperature of the cooking ingredients is between the first temperature point t1 and the second temperature point t2
- the negative pressure value in the pot is close to the vacuum level
- the duration of the negative pressure value in the pot is close to the negative pressure range. It can make air bubbles in the cooking utensil under low temperature conditions, the penetration and fusion between cooking ingredients and soup water is more sufficient, and it can produce better flavor.
- the nutrients of cooking ingredients can be fully dissolved in the soup water, which greatly improves the user experience. degree.
- the ratio of the first integral value S1 to the second integral value S2 can be controlled. Less than a certain set value (preferably, less than 0.5). Therefore, the nutrients of the cooking ingredients can be fully dissolved in the soup water, the cooking effect can meet the needs of the user, and the user's experience is greatly improved.
- the pressure value in the pot is controlled to change back and forth between the first temperature point and the second temperature point, and / or the pressure value in the pot is controlled to be greater than the pressure outside the pot for a first set time after the second temperature point. value.
- the ratio of the first integrated value S1 to the second integrated value S2 is controlled, thereby controlling the pressure value Pe in the pot, and then controlling the process of boiling in the pot.
- a temperature point t1 and a second temperature point t2 change back and forth. Therefore, by controlling the reciprocal change of the air pressure value Pe in the pot, dynamic penetration between the cooking ingredients and the soup can be promoted, thereby greatly improving the fusion effect between the soup and the cooking ingredients, and producing better flavor and taste.
- the first integrated value between the first temperature point and the second temperature point of the cooking ingredients is controlled in the pan, A ratio of the second integrated value between the pressure value outside the pan and the first temperature point and the second temperature point is less than a set ratio threshold.
- the air pressure value in the pot can be accurately controlled to generate air bubbles at a lower temperature. Therefore, when applied to cooking rice, the cooking ingredients can be disturbed by the air bubbles at a lower temperature to Avoid cooking ingredients sticking due to gelatinization, forming dense air bubble channels, and strengthening convective heat transfer, so that the cooking ingredients are evenly heated.
- the nutrients of the ingredients can be fully dissolved in the soup water to produce a better flavor.
- the nutritional value of the food cooked by the cooking appliance is greatly improved.
- FIG. 28 is a flowchart of a cooking control method for a cooking appliance according to an embodiment of the present application.
- the cooking control method of the cooking appliance according to the embodiment of the present application may include the following steps:
- the temperature inside the cooking appliance (inside the pot) is detected in real time, wherein the cooking process includes a preheating water absorption phase, a heating boiling phase, a high temperature boiling phase, and a rice cooking phase (the rice cooking completion phase). ).
- the temperature in the pressure cooking appliance can be obtained in real time through a temperature acquisition module such as a temperature sensor provided at the bottom of the pot body or the temperature in the pressure cooking appliance can be obtained in real time through a temperature acquisition module such as a temperature sensor provided in the lid body.
- the cooking process of the pressure cooking appliance during cooking may include, but is not limited to, a preheating water absorption phase, a heating boiling phase, a high temperature boiling phase, and a rice cooking phase, and may not include a preheating water absorption phase and / or rice cooking stage.
- the heating and boiling phase will be described in detail in the following embodiment; before entering the heating and boiling phase, the pressure cooking appliance first enters the preheating and water absorption phase, and in the preheating and water absorption phase, the rice grains are preheated and absorb water, It can shorten the cooking time and improve the taste of the rice cooked by the pressure cooking appliance. After the heating and boiling phase, it enters the high-temperature boiling phase and the rice cooking phase.
- the body of the pot is in a non-negative pressure state such as normal pressure.
- the body of the pot In the state of high temperature boiling, the body of the pot is in a normal pressure state, and the rice water in the pot can maintain boiling at a high temperature, that is, boil at a temperature of boiling point (about 100 ° C.) at an external atmospheric pressure to cook the rice.
- S12. Determine whether the temperature in the pressure cooking appliance is greater than a first preset temperature threshold.
- the value range of the first preset temperature threshold is 55 ° C-65 ° C, and preferably 60 ° C.
- identifying the temperature range in which the temperature in the pressure cooking appliance is located, and controlling the pressure in the pressure cooking appliance according to the temperature range including determining whether the temperature in the pressure cooking appliance is within the first range.
- a preset temperature range if the temperature in the pressure cooking appliance is within the first preset temperature range, controlling the pressure in the pressure cooking appliance to the first pressure range; if the temperature of the pressure cooking appliance is greater than the first preset temperature Range, further determine whether the temperature in the pressure cooking appliance is within the second preset temperature range; if the temperature in the pressure cooking appliance is within the second preset temperature range, control the pressure in the pressure cooking appliance at the second pressure Range, wherein the pressure value in the second pressure range is greater than the pressure value in the first pressure range, wherein the first preset temperature range is between the first preset temperature threshold and the second preset temperature threshold, and the second preset temperature
- the threshold value ranges from 70 ° C to 80 ° C, and may preferably be 75 ° C.
- the second preset temperature range is from the
- the temperature in the pressure cooking appliance in the temperature rising range of 60 ° C to 98 ° C is the boiling stage.
- the boiling stage can be divided into two stages T1 and T2 according to the temperature, and the temperature is lower.
- the T1 stage is a period in which the temperature in the pressure cooking appliance ranges from 60 ° C to 75 ° C
- the higher temperature T2 stage is the period in which the temperature in the pressure cooking appliance is between 75 ° C and 90 ° C.
- the temperature in the pressure cooking appliance is obtained in real time, and the temperature is compared with a first preset temperature threshold, such as 60 ° C., that is, it is determined whether the cooking process of the pressure cooking appliance has entered a temperature rise. Boiling stage. When the temperature in the pressure cooking appliance is greater than 60 ° C, it indicates that the cooking process of the pressure cooking appliance enters the boiling stage. At this time, it is necessary to further confirm whether the temperature in the pressure cooking appliance is greater than 60 ° C and less than 75 ° C, that is, to judge the pressure cooking. Whether the temperature in the appliance is in the lower T1 stage.
- a first preset temperature threshold such as 60 ° C.
- the control device of the pressure cooking appliance controls the air extraction device to extract the air in the pot and discharge it to the outside of the pot, so as to The pressure in the pressure cooking appliance is controlled within a first pressure range.
- the control device of the pressure cooking appliance extracts the air from the pot and discharges it to the outside of the pot to place the pressure cooking appliance inside.
- the pressure is controlled within the second pressure range.
- the following uses a specific example to explain that the cooking process of a pressure cooking appliance is in a boiling phase.
- the pressure in the pressure cooking appliance (the pressure in the pot) is controlled in different first pressure ranges and second pressure ranges in the T1 and T2 stages, respectively Boiling effect.
- the pressure in the pot is controlled to a first pressure range of 10kPa-80kPa, and in the T2 stage, the pressure in the pot is controlled to a second pressure range of 30kPa-90kPa for experiments.
- the experimental results are shown in Table 5 below:
- the pressure in the pot is controlled at the first pressure range of 20kPa-70kPa in the T1 stage, and the pot is adjusted in the T2 stage
- the internal pressure was controlled in the second pressure range of 40kPa-90kPa for experiments.
- Table 6 The experimental results are shown in Table 6 below:
- the pressure in the pot is controlled at the first pressure range of 40kPa-60kPa at T1 stage. In the T2 stage, the pressure in the pot is controlled to a second pressure range of 50 kPa-90 kPa for experiments.
- the experimental results are shown in Table 7 below:
- Example 4 As can be seen from Table 7, if the parameters shown in Table 7 are designed, the boiling and heating effects are ideal. In order to further reduce costs, low-end products can also achieve the reduction in boiling point caused by vacuuming. The heating performance is improved.
- the pressure in the pot is controlled to the first pressure range of 60kPa-80kPa in the T1 stage, and the experiment is performed when the pressure in the pot is controlled to the second pressure range of 70kPa-90kPa in the T2 stage.
- Table 8 shows:
- the judging criterion for the number of boiling holes is: the maximum size of the opening is 5mm, the middle of the hole is a spiral triangle, and there is no grain barrier in the middle, which is the boiling hole. Generally, the more and more uniform the pores, the more uniform the rice will boil.
- Nine o'clock moisture deviation rate As shown in Figure 30, take rice from nine different locations to measure its moisture content, then the water content deviation of nine different locations is the nine o'clock moisture deviation. The smaller the nine o'clock moisture deviation value, the different The more the rice is absorbed and heated, the more evenly.
- the pressure in the pot is made by the suction device Maintain 80kPa and make the pressure in the pot through the air extraction device in the T2 stage (that is, the range of 75 ° C to 90 ° C) Maintaining at 90kPa, when cooking 2, 4, and 8 cups of rice, the effects achieved are shown in Table 9 below:
- Example 9 the rice uniformity effect and the rice texture effect of Example 1 did not reach a particularly desirable effect.
- the pressure in the pot is made by the suction device Maintain 65kPa, make the pressure in the pot through the air extraction device in the T2 stage (that is, the range of 75 ° C to 90 ° C) Maintaining at 75kPa, when cooking 2, 4, and 8 cups of rice, the effect achieved is shown in Table 10 below:
- Example 2 As can be seen from Table 10, the rice uniformity effect and rice texture effect of Example 2 are improved compared to Example 1, and are at a medium level.
- the pressure in the pot is made by the suction device Maintain the pressure of 40kPa in the T2 stage (that is, in the range of 75 °C to 90 °C). Maintaining at 60kPa, when cooking 2, 4, and 8 cups of rice, the effects achieved are shown in Table 11 below:
- the rice uniformity effect and the rice texture effect of the third embodiment are higher than those of the second embodiment and are at a higher level.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the pressure in the pot is made by the suction device Maintain the pressure of 40kPa in the T2 stage (that is, in the range of 75 °C to 90 °C). Maintaining at 60kPa, when cooking 2, 4, and 8 cups of rice, the effects achieved are shown in Table 12 below:
- the method for controlling a pressure cooking appliance includes the following steps:
- the temperature in the pressure cooking appliance can be obtained in real time by a temperature acquisition module such as a temperature sensor provided at the bottom of the pot body or the temperature in the pressure cooking appliance can be obtained in real time by a temperature acquisition module such as a temperature sensor provided in the lid body.
- S132 Determine whether the temperature in the pressure cooking appliance is greater than a first preset temperature threshold.
- the first variation range may be 20 kPa.
- the temperature in the pressure cooking appliance is obtained in real time, and the temperature is compared with a first preset temperature threshold, such as 60 ° C., that is, it is determined whether the cooking process of the pressure cooking appliance has entered a temperature rise. Boiling stage.
- the control device of the pressure cooking appliance controls the air extraction device
- the air in the pot is extracted and discharged to the outside of the pot to control the pressure change value in the pressure cooking appliance within a first change range based on the pressure corresponding to the first preset temperature threshold.
- the pressure in the pressure cooking appliance is 40kPa.
- the pressure in the pressure cooking appliance can be controlled within the range of 40kPa-60kPa.
- the boiling point of the stage is above 75 ° C and below 90 ° C.
- the control device of the pressure cooking appliance When the temperature in the pressure cooking appliance is greater than the second preset temperature threshold value such as 75 ° C and lower than the third preset temperature threshold value such as 90 ° C, that is, in the T2 stage with a higher temperature, the control device of the pressure cooking appliance also controls the air extraction The device extracts the air inside the pot and discharges it to the outside of the pot to control the pressure change value in the pressure cooking appliance within a second change range based on the pressure corresponding to the second preset temperature threshold. For example, continuing to refer to FIG. 29, when the temperature in the pressure cooking appliance is 75 ° C, the pressure in the corresponding pressure cooking appliance is 50kPa. At this time, the pressure in the pressure cooking appliance can be controlled within the range of 50kPa-70kPa.
- the boiling point at this stage is above 85 ° C and below 96 ° C.
- the pot will continuously boil and generate a large amount of steam.
- the pressure Pe in the pot will rise slowly, and the temperature in the pot will also rise, which can maintain good heating effect for rice water.
- the control device of the pressure cooking appliance controls the air extraction device to not work, so that the pressure in the pressure cooking appliance rises rapidly, so that it can be at a lower temperature. Realize boiling at the same time, can achieve the best boiling effect.
- the temperature in the pressure cooking appliance is obtained in real time, and it is determined whether the temperature in the pressure cooking appliance is greater than a first preset temperature threshold, and the When the temperature is greater than the first preset temperature threshold, it is further judged whether the temperature in the pressure cooking appliance is within the first preset temperature range, and when the temperature in the pressure cooking appliance is within the first preset temperature range, the pressure cooking appliance is The internal pressure is controlled in the first pressure range, and when the temperature in the pressure cooking appliance is greater than the first preset temperature range, it is further judged whether the temperature in the pressure cooking appliance is in the second preset temperature range, and the pressure is within the pressure. When the temperature in the cooking appliance is within the second preset temperature range, the pressure in the pressure cooking appliance is controlled to the second pressure range, so that boiling can be achieved at a lower temperature and the best boiling effect can be achieved at the same time.
- the present application also proposes a cooking appliance.
- FIG. 32 is a schematic diagram of a cooking appliance according to an embodiment of the present application.
- the cooking appliance 100 includes a pot body 10, a cover body 20, a vacuum device 30, a heating device 40, a detection module, and a control unit 70.
- the detection module is used to detect cooking parameters of the cooking appliance during the cooking process of the cooking appliance.
- the cooking process includes a pretreatment stage, a temperature-boiling stage, and a high-temperature boiling stage.
- the cooking parameters include the temperature in the cooking cavity, the cooking cavity. At least one of the internal pressure and the operating time of the temperature-boiling phase.
- the detection module may include a temperature detection unit 50 and a pressure detection unit 60.
- the temperature detection unit 50 is configured to detect a temperature in the cooking cavity 11 during a cooking process of the cooking appliance; the pressure detection unit 60 is configured to perform cooking on the cooking appliance During the process, the pressure in the cooking cavity is detected.
- the control unit 70 is connected to the detection module, that is, the temperature detection unit 50 and the pressure detection unit 60.
- the control unit 70 is used to control the heating device 40 to perform heating work when the cooking appliance is in a heating and boiling phase, and to control the vacuum device 30 to perform the cooking cavity 11 Evacuate so that the cooking cavity 11 generates boiling bubbles when the temperature in the cooking cavity reaches a first temperature value or is greater than a preset threshold of the first temperature value, and according to the temperature in the cooking cavity, the pressure in the cooking cavity, and the boiling stage At least one of the operating hours of the control vacuum device 30 is turned off until the cooking appliance enters a high-temperature boiling stage.
- control unit 70 when the vacuum device 30 is controlled to be turned off according to the temperature in the cooking cavity, the control unit 70 is configured to control the vacuum device 30 to be turned off when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature.
- the control unit 70 when the vacuum device 30 is controlled to be turned off according to the temperature in the cooking cavity, the control unit 70 is configured to obtain a temperature rise rate in the cooking cavity within a preset sampling time according to the temperature in the cooking cavity, and When the temperature rise rate is less than the preset temperature rise rate within the preset sampling time, the vacuum device 30 is controlled to be turned off.
- control unit 70 is configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset closing temperature or a preset temperature rising rate according to the amount of rice water in the cooking cavity.
- control unit 70 when the vacuum device 30 is controlled to be turned off according to the running time during the heating and boiling phase, the control unit 70 is configured to control the vacuum device 30 to be turned off when the running time during the heating and boiling phase is greater than or equal to a preset shutdown time. .
- control unit 70 is configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset closing time according to the amount of rice water in the cooking cavity.
- control unit 70 when the vacuum device 30 is controlled to be turned off according to the pressure in the cooking cavity, the control unit 70 is configured to control the vacuum device 30 to be turned off when the pressure in the cooking cavity rises to be greater than or equal to a preset closing pressure. .
- the control unit 70 when the vacuum device 30 is controlled to be turned off according to the pressure in the cooking cavity, the control unit 70 is configured to obtain a rising rate of the pressure in the cooking cavity within a preset sampling time according to the pressure in the cooking cavity, and When the pressure rise rate is greater than the preset pressure rise rate within the preset sampling time, the vacuum device 30 is controlled to be turned off.
- control unit 70 is configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset closing pressure or a preset pressure rising rate according to the amount of rice water in the cooking cavity.
- the control unit 70 when the vacuum device 30 is controlled to be closed according to the temperature in the cooking cavity and the pressure in the cooking cavity, the control unit 70 is configured to: the temperature in the cooking cavity is greater than or equal to a preset closed temperature and the cooking cavity When the internal pressure is within a preset pressure range, the vacuum device 30 is controlled to be turned off.
- control unit 70 is configured to determine that the cooking appliance is faulty when the temperature in the cooking cavity is less than a preset shutdown temperature and the pressure in the cooking cavity is greater than a pressure upper limit value in a preset pressure range.
- control unit 70 is further configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset closing temperature and a preset pressure range according to the amount of rice water in the cooking cavity.
- the control unit 70 when the vacuum device is controlled to be turned off according to the operating time of the heating and boiling phase and the pressure in the cooking cavity, the control unit 70 is configured to: when the operating time of the heating and boiling phase is greater than or equal to a preset off time and cooking When the pressure in the cavity is within a preset pressure range, the vacuum device 30 is controlled to be turned off.
- control unit 70 is configured to determine that a cooking appliance appears when the operating time of the heating and boiling phase is greater than or equal to a preset off time and the pressure in the cooking cavity is greater than a pressure upper limit value of a preset pressure range. malfunction.
- control unit 70 is configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset close time and a preset pressure range according to the amount of rice water in the cooking cavity.
- the control unit 70 when the vacuum device is turned off according to the operating time of the heating and boiling phase and the temperature in the cooking cavity, the control unit 70 is configured to operate the heating and boiling phase with a running time greater than or equal to a preset closing time and the cooking cavity When the internal temperature is within a preset temperature range, the vacuum device 30 is controlled to be turned off.
- control unit 70 is configured to determine that the cooking appliance is faulty when the running time during the heating and boiling phase is greater than or equal to a preset off time and the temperature in the cooking cavity is less than a temperature lower limit of the preset temperature range. .
- control unit 70 is configured to determine an amount of rice water in the cooking cavity before the heating and boiling phase, and determine a preset close time and a preset temperature range according to the amount of rice water in the cooking cavity.
- the temperature-boiling phase of the cooking appliance is determined by the temperature in the cooking cavity 11, wherein the control unit 70 determines that the cooking appliance enters the temperature-boiling phase when the temperature in the cooking cavity reaches a first temperature value, where The first temperature value is determined according to the gelatinization temperature of the rice, and the first temperature value is less than the atmospheric pressure boiling point.
- control unit 70 is further configured to control the heating device 40 to perform heating work, and control the vacuum device 30 to evacuate the cooking cavity at least once, so that the temperature of the cooking cavity in the cooking cavity reaches the first temperature.
- a boiling bubble is generated when the temperature value is greater than a preset threshold of the first temperature value.
- the first temperature value is less than or equal to the gelatinization temperature of the rice; or, the first temperature value is 55 ° C to 65 ° C.
- control unit 70 is further configured to control the heating device 40 to perform heating work, and at the same time control the vacuum device 30 to evacuate the cooking cavity; or first control the vacuum device 30 to evacuate the cooking cavity, and then control The heating device 40 performs heating work; or first, the heating device 40 is controlled to perform heating work, and then the vacuum device 30 is controlled to evacuate the cooking cavity.
- control unit 70 is further configured to control the heating device to perform the heating operation at intervals or continuously when the heating device 40 performs heating and the vacuum device evacuates for a preset time. And / or control the vacuum device 30 to perform evacuation at intervals or continuously; or, first control the vacuum device 30 to evacuate the cooking cavity and then control the heating device 40 to perform heating operations including: when the vacuum device 30 performs vacuum When the time reaches the preset evacuation time, the heating device 40 is controlled to perform the heating work; or, the heating device 40 is controlled to perform the heating work and then the vacuum device 30 is controlled to perform the vacuuming on the cooking cavity. When the heating device 40 is performing the heating work, When the preset heating time is reached, the vacuum device 30 is controlled to perform vacuuming.
- the preset time is 0-20min; or the preset evacuation time is 0-20min; or the preset heating time is 0-20min.
- control unit 70 is further configured to control the heating device to continue to perform vacuum while controlling the heating device to perform the heating work; or, first control the heating device to perform the heating work and then control the vacuum device to perform cooking.
- Evacuating the cavity also includes controlling the heating device to continue heating during the process of controlling the vacuum device to perform the vacuum.
- control unit 70 is further configured to obtain a preset heating rate and control the heating device to be spaced apart according to the preset heating rate and the temperature in the cooking cavity when the heating device is controlled to continue the heating work.
- the heating work is performed or continuously performed.
- control unit 70 is further configured to, during the cooking process of the cooking appliance, detect the pressure in the cooking cavity and obtain a preset pressure, and control the vacuum device according to the preset pressure and the pressure in the cooking cavity. Evacuation is performed at intervals or continuously, where the preset pressure is less than atmospheric pressure.
- the preset pressure is determined according to a gelatinization temperature of the rice.
- the preset pressure is 20 kPa to 60 kPa.
- the control unit 70 controls the heating device to increase the temperature in the cooking cavity from a first temperature value to a second temperature value, where the second temperature value is greater than The first temperature value is less than or equal to the atmospheric pressure boiling point.
- control unit 70 is further configured to control the heating device to perform heating work and control the vacuum device to attenuate the pressure in the cooking cavity when the temperature in the cooking cavity increases at least once, so that When the temperature in the cooking cavity reaches a first temperature value or is greater than a preset threshold of the first temperature value, boiling bubbles are generated.
- control unit 70 is further configured to control a first integrated value of the pressure value in the pan between the first temperature point and the second temperature point of the cooking ingredients during the air-extracting cooking process and the pot
- the ratio of the second integral value between the first temperature point and the second temperature point of the outside air pressure is smaller than the set ratio threshold; wherein the set ratio threshold is equal to or less than 1, and the second temperature point is greater than the first temperature point, And the first temperature point and the second temperature point are both lower than the boiling temperature corresponding to the pressure value outside the pot.
- the set ratio threshold is equal to or less than 0.8; or the set ratio threshold is equal to or less than 0.6; or the set ratio threshold is equal to or less than 0.5; or the set ratio threshold is equal to or less than 0.4.
- the first temperature point and the second temperature point are both greater than the difference between the gelatinization temperature and the set difference temperature of the cooking ingredients; or, the first temperature point and the second temperature point are both greater than The temperature value corresponding to the start of pumping; or both the first temperature point and the second temperature point are greater than the temperature value corresponding to the start of heating.
- the first temperature point is equal to an initial value of the temperature in the pot.
- control unit 70 is further configured to control the air pressure value in the pot to change back and forth between the first temperature point and the second temperature point; and / or, control the air pressure value in the pot after the second temperature point
- the first set time is greater than the pressure outside the pot.
- the control unit controls the vacuum device to pump the cooking cavity. Vacuum, so that when the temperature of the cooking cavity in the cooking cavity reaches a first temperature value or exceeds a preset threshold of the first temperature value, boiling bubbles are generated, so that the rice grains are loosened and non-sticky by the low temperature boiling bubble disturbance, thereby ensuring the heating uniformity of the rice grains,
- the cooked rice has a uniform taste, more flavor and sweetness.
- control unit controls the closing of the vacuum device according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling phase, which can achieve better boiling and tumbling while preventing the loss of water vapor and Inhale vacuum equipment to prevent breeding of bacteria.
- FIG. 33 is a schematic block diagram of a control device for a cooking appliance according to an embodiment of the present application.
- control device for a cooking appliance may include a temperature acquisition module 1000, a first identification module 2000, a second identification module 3000, and a control module 4000.
- the temperature acquisition module 100 is configured to acquire a temperature in the pressure cooking appliance.
- the first identification module 2000 is used to identify that the temperature in the pressure cooking appliance is greater than a first preset temperature threshold.
- the second identification module 3000 is configured to identify a temperature range in which the temperature in the pressure cooking appliance is located when the temperature in the pressure cooking appliance is greater than a first preset temperature threshold.
- the control module 4000 is used to control the pressure in the pressure cooking appliance according to the temperature range in which it is located.
- the control module 4000 is configured to determine whether the temperature in the pressure cooking appliance is within the first preset temperature range; if the temperature in the pressure cooking appliance is within the first preset temperature range, the pressure is The pressure in the cooking appliance is controlled in the first pressure range; if the temperature of the pressure cooking appliance is greater than the first preset temperature range, it is further judged whether the temperature in the pressure cooking appliance is in the second preset temperature range; If the temperature is within the second preset temperature range, the pressure in the pressure cooking appliance is controlled to the second pressure range, wherein the pressure value in the second pressure range is greater than the pressure value in the first pressure range.
- the first preset temperature range is between the first preset temperature threshold and the second preset temperature threshold
- the second preset temperature range is between the second preset temperature threshold and the third preset temperature. Between thresholds.
- the value range of the first preset temperature threshold is 55 ° C-65 ° C
- the value range of the second preset temperature threshold is 70 ° C-80 ° C
- the value of the third preset temperature threshold is Values range from 85 ° C to 95 ° C.
- the first pressure range is 10 kPa-80 kPa
- the second pressure range is 30 kPa-90 kPa.
- the first pressure range is 20 kPa-70 kPa
- the second pressure range is 40 kPa-90 kPa.
- the first pressure range is from 40 kPa to 60 kPa
- the second pressure range is from 50 kPa to 90 kPa.
- the first pressure range is 60 kPa-80 kPa
- the second pressure range is 70 kPa-90 kPa.
- the control module 4000 is configured to control a pressure change value of the pressure cooking appliance to a first value if the temperature in the pressure cooking appliance is greater than a first preset temperature threshold value and less than a second preset temperature threshold value.
- the first variation range is based on the pressure corresponding to the first preset temperature threshold; if the temperature in the pressure cooking appliance is greater than the second preset temperature threshold and less than the third preset temperature threshold, the pressure cooking is performed.
- the pressure change value of the appliance is controlled within a second change range, wherein the second change range is based on the pressure corresponding to the second preset temperature threshold.
- the first variation range is 20 kPa
- the second variation range is 20 kPa
- the temperature in the pressure cooking appliance is acquired by the temperature acquisition module, and the temperature in the pressure cooking appliance is recognized by the first identification module to be greater than a first preset temperature threshold, and the pressure cooking appliance is in the pressure cooking appliance.
- the temperature range in which the temperature in the cooking appliance is located is identified by the second identification module, and the control module controls the pressure in the pressure cooking appliance according to the temperature range, so that the It achieves boiling at low temperature and can achieve the best boiling effect at the same time.
- a non-transitory computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, the method for controlling a pressure cooking appliance provided in the embodiment of the first aspect, or the first A method for controlling a pressure cooking appliance provided by the embodiment of the second aspect.
- the non-transitory computer-readable storage medium of the embodiment of the present application can achieve boiling at a lower temperature and achieve the best boiling effect, while preventing water vapor generated after boiling and sucking into a vacuum device to prevent breeding of bacteria.
- each part of the application may be implemented by hardware, software, firmware, or a combination thereof.
- multiple steps or methods may be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system.
- a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it may be implemented using any one or a combination of the following techniques known in the art: Discrete logic circuits, application-specific integrated circuits with suitable combinational logic gate circuits, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.
- first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically defined otherwise.
- the terms “installation,” “connected,” “connected,” and “fixed” should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. , Or integrated; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of the two elements or the interaction between the two elements.
- installation should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. , Or integrated; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of the two elements or the interaction between the two elements.
- the first feature "on” or “down” of the second feature may be the first and second features in direct contact, or the first and second features indirectly through an intermediate medium. contact.
- the first feature is “above”, “above”, and “above” the second feature.
- the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in level than the second feature.
- the first feature is “below”, “below”, and “below” of the second feature.
- the first feature may be directly below or obliquely below the second feature, or it may simply indicate that the first feature is less horizontal than the second feature.
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Abstract
Description
米水量Water volume | 小量Small amount | 中量Moderate | 大量Massive |
预设关闭温度Preset shutdown temperature | 55~60℃55 ~ 60 ℃ | 60~65℃60 ~ 65 ℃ | 65~70℃65 ~ 70 ℃ |
预设温度上升速率Preset temperature rise rate | 3℃/60s~6℃/60s3 ℃ / 60s ~ 6 ℃ / 60s |
2℃/60s~5℃/60s2 ℃ / 60s ~ 5 ℃ / |
1℃/60s~3℃/60s1 ℃ / 60s ~ 3 ℃ / 60s |
米水量Water volume | 小量Small amount | 中量Moderate | 大量Massive |
预设关闭压力Preset closing pressure |
55~65kPa55 ~ |
60~70kPa60 ~ 70kPa | 65~75kPa65 ~ 75kPa |
米水量Water volume | 小量Small amount | 中量Moderate | 大量Massive |
预设关闭时间Preset shutdown time | 4~8分钟4 to 8 minutes |
7~10分7 to 10 |
10~15分钟10 ~ 15 minutes |
米水量Water volume | 小量Small amount | 中量Moderate | 大量Massive |
预设压力范围Preset pressure range |
55~65kPa55 ~ |
60~70kPa60 ~ 70kPa | 65~75kPa65 ~ 75kPa |
预设关闭温度 |
40~45度40 to 45 degrees |
45~50度45 ~ 50 |
50~55度50 ~ 55 degrees |
预设关闭时间Preset shutdown time | 4~8分钟4 to 8 minutes |
7~10分7 to 10 |
10~15分钟10 ~ 15 minutes |
Claims (41)
- 一种烹饪器具的烹饪控制方法,其特征在于,所述烹饪器具包括锅体、盖体、真空装置和加热装置,所述盖体可活动地安装于所述锅体,在所述盖体处于关闭位置时所述锅体和所述盖体之间形成密封的烹饪腔,所述真空装置在所述烹饪腔密闭时对所述烹饪腔进行抽真空以使所述烹饪腔内形成负压真空,所述方法包括以下步骤:A cooking control method for a cooking appliance, characterized in that the cooking appliance includes a pot body, a cover body, a vacuum device, and a heating device, and the cover body is movably mounted on the pot body, and the cover body is located in the cover body. In the closed position, a sealed cooking cavity is formed between the pot body and the cover body, and the vacuum device evacuates the cooking cavity when the cooking cavity is closed to form a negative pressure vacuum in the cooking cavity. The method includes the following steps:在所述烹饪器具的烹饪过程中,检测所述烹饪器具的烹饪参数,其中,所述烹饪过程包括预处理阶段、升温沸腾阶段和高温沸腾阶段,所述烹饪参数包括所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中的至少一个;During the cooking process of the cooking appliance, the cooking parameters of the cooking appliance are detected, wherein the cooking process includes a pre-treatment phase, a temperature-boiling phase, and a high-temperature boiling phase, and the cooking parameters include a temperature in the cooking cavity. At least one of the pressure in the cooking cavity and the operating time of the heating and boiling phase;当所述烹饪器具处于所述升温沸腾阶段时,控制所述加热装置进行加热工作,并控制所述真空装置对所述烹饪腔进行抽真空,以使所述烹饪腔在所述烹饪腔内的温度达到第一温度值或大于所述第一温度值预设阈值时产生沸腾气泡;When the cooking appliance is in the heating and boiling phase, the heating device is controlled to perform heating work, and the vacuum device is controlled to evacuate the cooking cavity, so that the cooking cavity is in the cooking cavity. When the temperature reaches a first temperature value or is greater than a preset threshold of the first temperature value, boiling bubbles are generated;根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭,直至所述烹饪器具进入所述高温沸腾阶段。Controlling the vacuum device to turn off according to at least one of the temperature in the cooking cavity, the pressure in the cooking cavity, and the operating time of the heating and boiling phase, until the cooking appliance enters the high temperature boiling phase.
- 根据权利要求1所述的烹饪器具的烹饪控制方法,其特征在于,当根据所述烹饪腔内的温度控制所述真空装置关闭时,根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭包括:The cooking control method for a cooking appliance according to claim 1, wherein, when the vacuum device is controlled to be turned off according to the temperature in the cooking cavity, the cooking device according to the temperature in the cooking cavity, At least one of a pressure and an operating time of the temperature-boiling phase controlling the vacuum device to shut down includes:当所述烹饪腔内的温度大于或等于预设关闭温度时,控制所述真空装置关闭;或者Controlling the vacuum device to turn off when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature; or根据所述烹饪腔内的温度获取所述烹饪腔内的温度在预设采样时间内上升速率,并当所述温度在预设采样时间内上升速率小于预设温度上升速率时,控制所述真空装置关闭。Obtaining a temperature rising rate of the temperature in the cooking cavity within a preset sampling time according to the temperature in the cooking cavity, and controlling the vacuum when the temperature rising rate within the preset sampling time is less than a preset temperature rising rate Device is off.
- 根据权利要求2所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 2, further comprising:在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量;Determining the amount of rice water in the cooking cavity before the heating and boiling phase;根据所述烹饪腔内的米水量确定所述预设关闭温度或所述预设温度上升速率。Determining the preset closing temperature or the preset temperature rising rate according to the amount of rice water in the cooking cavity.
- 根据权利要求1所述的烹饪器具的烹饪控制方法,其特征在于,当根据所述升温沸腾阶段的运行时间控制所述真空装置关闭时,所述根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭包括:The cooking control method for a cooking appliance according to claim 1, wherein, when the vacuum device is controlled to be turned off according to the operating time of the heating and boiling phase, the cooking device according to the temperature in the cooking cavity, the cooking At least one of the pressure in the cavity and the operating time of the temperature-boiling stage controlling the vacuum device to shut down includes:当所述升温沸腾阶段的运行时间大于或等于预设关闭时间时,控制所述真空装置关闭。When the running time of the heating and boiling phase is greater than or equal to a preset closing time, the vacuum device is controlled to be turned off.
- 根据权利要求4所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 4, further comprising:在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量;Determining the amount of rice water in the cooking cavity before the heating and boiling phase;根据所述烹饪腔内的米水量确定所述预设关闭时间。Determining the preset closing time according to the amount of rice water in the cooking cavity.
- 根据权利要求1所述的烹饪器具的烹饪控制方法,其特征在于,当根据所述烹饪腔 内的压力控制所述真空装置关闭时,所述根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭包括:The cooking control method for a cooking appliance according to claim 1, wherein when the vacuum device is controlled to be turned off according to the pressure in the cooking cavity, the cooking cavity is based on the temperature in the cooking cavity, At least one of the internal pressure and the operating time of the temperature-boiling phase controlling the vacuum device to shut down includes:当所述烹饪腔内的压力上升到大于或等于预设关闭压力时,控制所述真空装置关闭;或者When the pressure in the cooking cavity rises to be greater than or equal to a preset closing pressure, controlling the vacuum device to close; or根据所述烹饪腔内的压力获取所述烹饪腔内的压力在预设采样时间内上升速率,并当所述压力在预设采样时间内上升速率大于预设压力上升速率时,控制所述真空装置关闭。Obtaining a rising rate of the pressure in the cooking cavity within a preset sampling time according to the pressure in the cooking cavity, and controlling the vacuum when the rising rate of the pressure within the preset sampling time is greater than a preset pressure rising rate Device is off.
- 根据权利要求6所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 6, further comprising:在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量;Determining the amount of rice water in the cooking cavity before the heating and boiling phase;根据所述烹饪腔内的米水量确定所述预设关闭压力或所述预设压力上升速率。Determining the preset closing pressure or the preset pressure rising rate according to the amount of rice water in the cooking cavity.
- 根据权利要求1所述的烹饪器具的烹饪控制方法,其特征在于,The cooking control method for a cooking appliance according to claim 1, wherein:当根据所述烹饪腔内的温度和所述烹饪腔内的压力控制所述真空装置关闭时,所述根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭包括:When the vacuum device is controlled to be turned off according to the temperature in the cooking cavity and the pressure in the cooking cavity, the according to the temperature in the cooking cavity, the pressure in the cooking cavity, and the temperature in the boiling stage At least one of the running times controlling the vacuum device to shut down includes:当所述烹饪腔内的温度大于或等于预设关闭温度且所述烹饪腔内的压力处于预设压力范围时,控制所述真空装置关闭;Controlling the vacuum device to turn off when the temperature in the cooking cavity is greater than or equal to a preset shutdown temperature and the pressure in the cooking cavity is within a preset pressure range;或者,当根据所述升温沸腾阶段的运行时间和所述烹饪腔内的压力控制所述真空装置关闭时,所述根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少两个控制所述真空装置关闭包括:Alternatively, when the vacuum device is controlled to be turned off according to the operating time of the heating and boiling phase and the pressure in the cooking cavity, the temperature is based on the temperature in the cooking cavity, the pressure in the cooking cavity, and the temperature rise At least two controlling the closing of the vacuum device during the running period of the boiling stage include:当所述升温沸腾阶段的运行时间大于或等于预设关闭时间且所述烹饪腔内的压力处于预设压力范围时,控制所述真空装置关闭;Controlling the vacuum device to turn off when the running time of the heating and boiling phase is greater than or equal to a preset shutdown time and the pressure in the cooking cavity is within a preset pressure range;或者,当根据所述升温沸腾阶段的运行时间和所述烹饪腔内的温度控制所述真空装置关闭时,所述根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少两个控制所述真空装置关闭包括:Alternatively, when the vacuum device is controlled to be turned off according to the running time of the heating and boiling phase and the temperature in the cooking cavity, the temperature is controlled according to the temperature in the cooking cavity, the pressure in the cooking cavity, and the temperature rise. At least two controlling the closing of the vacuum device during the running period of the boiling stage include:当所述升温沸腾阶段的运行时间大于或等于预设关闭时间且所述烹饪腔内的温度处于预设温度范围时,控制所述真空装置关闭。When the running time of the heating and boiling phase is greater than or equal to a preset shutdown time and the temperature in the cooking cavity is within a preset temperature range, the vacuum device is controlled to be turned off.
- 根据权利要求8所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 8, further comprising:当所述烹饪腔内的温度小于所述预设关闭温度且所述烹饪腔内的压力大于所述预设压力范围的压力上限值时,判断所述烹饪器具出现故障;When the temperature in the cooking cavity is less than the preset shutdown temperature and the pressure in the cooking cavity is greater than a pressure upper limit value of the preset pressure range, it is determined that the cooking appliance is malfunctioning;或者,当所述升温沸腾阶段的运行时间大于或等于预设关闭时间且所述烹饪腔内的压力大于所述预设压力范围的压力上限值时,判断所述烹饪器具出现故障;Alternatively, when the operating time of the heating and boiling phase is greater than or equal to a preset closing time and the pressure in the cooking cavity is greater than a pressure upper limit value of the preset pressure range, it is judged that the cooking appliance is faulty;或者,当所述升温沸腾阶段的运行时间大于或等于预设关闭时间且所述烹饪腔内的温度小于所述预设温度范围的温度下限值时,判断所述烹饪器具出现故障。Alternatively, when the operating time of the heating and boiling phase is greater than or equal to a preset off time and the temperature in the cooking cavity is less than a lower temperature limit of the preset temperature range, it is determined that the cooking appliance is malfunctioning.
- 根据权利要求8所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 8, further comprising:在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量,并根据所述烹饪腔内的米水量确定所述预设关闭温度和所述预设压力范围;Determining the amount of rice water in the cooking cavity before the heating and boiling phase, and determining the preset shutdown temperature and the preset pressure range according to the amount of rice water in the cooking cavity;或者,在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量,并根据所述烹饪腔内的米水量确定所述预设关闭时间和所述预设压力范围;Alternatively, before the heating and boiling phase, determine the amount of rice water in the cooking cavity, and determine the preset closing time and the preset pressure range according to the amount of rice water in the cooking cavity;或者,在所述升温沸腾阶段之前,确定所述烹饪腔内的米水量,并根据所述烹饪腔内的米水量确定所述预设关闭时间和所述预设温度范围。Alternatively, before the heating and boiling phase, the amount of rice water in the cooking cavity is determined, and the preset off time and the preset temperature range are determined according to the amount of rice water in the cooking cavity.
- 根据权利要求1所述的烹饪器具的烹饪控制方法,其特征在于,通过所述烹饪腔内的温度确定所述烹饪器具的所述升温沸腾阶段,其中,The cooking control method for a cooking appliance according to claim 1, wherein the temperature-boiling stage of the cooking appliance is determined by a temperature in the cooking cavity, wherein,在所述烹饪腔内的温度达到第一温度值时,确定所述烹饪器具进入所述升温沸腾阶段,其中,所述第一温度值根据米的糊化温度确定的,且小于所述大气压沸点。When the temperature in the cooking cavity reaches a first temperature value, it is determined that the cooking appliance enters the heating and boiling phase, wherein the first temperature value is determined according to a gelatinization temperature of rice and is less than the atmospheric pressure boiling point .
- 根据权利要求11所述的烹饪器具的烹饪控制方法,其特征在于,所述控制所述加热装置进行加热工作,并控制所述真空装置对所述烹饪腔进行抽真空,包括:The cooking control method for a cooking appliance according to claim 11, wherein the controlling the heating device to perform heating work and controlling the vacuum device to evacuate the cooking cavity comprises:控制所述加热装置进行加热工作,并控制所述真空装置对所述烹饪腔进行至少一次抽真空,以使所述烹饪腔在所述烹饪腔内的温度达到所述第一温度值或大于所述第一温度值预设阈值时产生沸腾气泡。Controlling the heating device to perform heating work, and controlling the vacuum device to evacuate the cooking cavity at least once, so that the temperature of the cooking cavity in the cooking cavity reaches the first temperature value or higher than When the first temperature value is preset to a threshold, boiling bubbles are generated.
- 根据权利要求11所述的烹饪器具的烹饪控制方法,其特征在于,The cooking control method for a cooking appliance according to claim 11, wherein:所述第一温度值小于或等于所述米的糊化温度;The first temperature value is less than or equal to the gelatinization temperature of the rice;或者,所述第一温度值为55℃~65℃。Alternatively, the first temperature value is 55 ° C to 65 ° C.
- 根据权利要求12所述的烹饪器具的烹饪控制方法,其特征在于,所述控制所述真空装置对所述烹饪腔进行至少一次抽真空包括:The cooking control method for a cooking appliance according to claim 12, wherein the controlling the vacuum device to evacuate the cooking cavity at least once comprises:控制所述加热装置进行加热工作,同时控制所述真空装置对所述烹饪腔进行抽真空;或者Controlling the heating device to perform heating work, and simultaneously controlling the vacuum device to evacuate the cooking cavity; or先控制所述真空装置对所述烹饪腔进行抽真空,再控制所述加热装置进行加热工作;或者First controlling the vacuum device to evacuate the cooking cavity, and then controlling the heating device to perform heating work; or先控制所述加热装置进行加热工作,再控制所述真空装置对所述烹饪腔进行抽真空。First control the heating device to perform heating work, and then control the vacuum device to evacuate the cooking cavity.
- 根据权利要求14所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to claim 14, further comprising:当所述加热装置进行加热同时所述真空装置进行抽真空的时间达到预设时间时,控制 所述加热装置间隔地进行加热工作或连续地进行加热工作,和/或控制所述真空装置间隔地进行抽真空或连续地进行抽真空;When the heating device performs heating while the vacuum device performs vacuuming for a preset time, the heating device is controlled to perform heating work intermittently or continuously, and / or the vacuum device is controlled to perform heating intermittently. Evacuation or continuous evacuation;或者,所述先控制所述真空装置对所述烹饪腔进行抽真空再控制所述加热装置进行加热工作包括:当所述真空装置进行抽真空的时间达到预设抽真空时间时,再控制所述加热装置进行加热工作;Alternatively, the first controlling the vacuum device to evacuate the cooking cavity and then controlling the heating device to perform the heating operation includes: when the time for the vacuum device to perform the vacuuming reaches a preset vacuuming time, then controlling the The heating device performs heating work;或者,所述先控制所述加热装置进行加热工作再控制所述真空装置对所述烹饪腔进行抽真空包括;当所述加热装置进行加热工作的时间达到预设加热时间时,再控制所述真空装置进行抽真空。Alternatively, the step of controlling the heating device to perform heating work and then controlling the vacuum device to evacuate the cooking cavity includes: controlling the heating device to perform a heating operation for a preset heating time, and then controlling the The vacuum device performs vacuuming.
- 根据权利要求15所述的烹饪器具的烹饪控制方法,其特征在于,The cooking control method for a cooking appliance according to claim 15, wherein所述预设时间为0-20min;或者The preset time is 0-20min; or所述预设抽真空时间为0-20min;或者The preset evacuation time is 0-20min; or所述预设加热时间为0-20min。The preset heating time is 0-20min.
- 根据权利要求15所述的烹饪器具的烹饪控制方法,其特征在于,The cooking control method for a cooking appliance according to claim 15, wherein所述先控制所述真空装置对所述烹饪腔进行抽真空再控制所述加热装置进行加热工作还包括:在控制所述加热装置进行加热工作的过程中,还控制所述真空装置继续进行抽真空;The first controlling the vacuum device to evacuate the cooking cavity and then controlling the heating device to perform the heating work further includes: during the control of the heating device to perform the heating work, further controlling the vacuum device to continue to perform the evacuation vacuum;或者,所述先控制所述加热装置进行加热工作再控制所述真空装置对所述烹饪腔进行抽真空还包括:在控制所述真空装置进行抽真空的过程中,还控制所述加热装置继续进行加热。Alternatively, the controlling the heating device to perform heating work first and then controlling the vacuum device to evacuate the cooking cavity further includes: in the process of controlling the vacuum device to evacuate, further controlling the heating device to continue Heat.
- 根据权利要求12-17中任一项所述的烹饪器具的烹饪控制方法,其特征在于,控制所述加热装置进行加热工作包括:The cooking control method for a cooking appliance according to any one of claims 12-17, wherein controlling the heating device to perform a heating operation includes:获取预设的升温速度;Get a preset heating rate;根据所述预设的升温速度和所述烹饪腔内的温度控制所述加热装置间隔地进行加热工作或连续地进行加热工作。Controlling the heating device to perform the heating operation at intervals or continuously according to the preset heating rate and the temperature in the cooking cavity.
- 根据权利要求12-17中任一项所述的烹饪器具的烹饪控制方法,其特征在于,控制所述真空装置进行抽真空,包括:The cooking control method for a cooking appliance according to any one of claims 12-17, wherein controlling the vacuum device to perform vacuum extraction comprises:在所述烹饪器具的烹饪过程中,检测所述烹饪腔内的压力;Detecting the pressure in the cooking cavity during the cooking process of the cooking appliance;获取预设压力,其中,所述预设压力小于大气压;Obtaining a preset pressure, wherein the preset pressure is less than atmospheric pressure;根据所述预设压力和所述烹饪腔内的压力控制所述真空装置间隔地进行抽真空或连续地进行抽真空。The vacuum device is controlled to perform vacuum extraction at intervals or continuously to perform vacuum extraction according to the preset pressure and the pressure in the cooking cavity.
- 根据权利要求19所述的烹饪器具的烹饪控制方法,其特征在于,所述预设压力根据所述米的糊化温度确定。The cooking control method for a cooking appliance according to claim 19, wherein the preset pressure is determined according to a gelatinization temperature of the rice.
- 根据权利要求19或20所述的烹饪器具,其特征在于,所述预设压力为20kPa~60kPa。The cooking appliance according to claim 19 or 20, wherein the preset pressure is 20 kPa to 60 kPa.
- 根据权利要求11所述的烹饪器具的烹饪控制方法,其特征在于,当所述烹饪器具处于所述升温沸腾阶段时,通过控制所述加热装置以使所述烹饪腔内的温度从所述第一温度值上升到第二温度值,其中,所述第二温度值大于所述第一温度值且小于或等于所述大气压沸点。The cooking control method for a cooking appliance according to claim 11, wherein, when the cooking appliance is in the temperature-boiling stage, the heating device is controlled so that the temperature in the cooking cavity is reduced from the first A temperature value rises to a second temperature value, wherein the second temperature value is greater than the first temperature value and less than or equal to the atmospheric pressure boiling point.
- 根据权利要求11所述的烹饪器具的烹饪控制方法,其特征在于,所述控制所述加热装置进行加热工作,并控制所述真空装置对所述烹饪腔进行抽真空,包括:The cooking control method for a cooking appliance according to claim 11, wherein the controlling the heating device to perform heating work and controlling the vacuum device to evacuate the cooking cavity comprises:控制所述加热装置进行加热工作,并对所述真空装置进行控制,以至少一次出现在所述烹饪腔内的温度增加时所述烹饪腔内的压力衰减,以使所述烹饪腔在所述烹饪腔内的温度达到所述第一温度值或大于所述第一温度值预设阈值时产生沸腾气泡。Controlling the heating device to perform heating work and controlling the vacuum device to attenuate the pressure in the cooking cavity when the temperature appearing in the cooking cavity increases at least once, so that the cooking cavity is in the When the temperature in the cooking cavity reaches the first temperature value or is greater than a preset threshold of the first temperature value, boiling bubbles are generated.
- 根据权利要求11-23任一项所述的烹饪器具的烹饪控制方法,其特征在于,还包括:The cooking control method for a cooking appliance according to any one of claims 11-23, further comprising:在抽气烹饪过程中,控制锅内气压值在烹饪食材的第一温度点和第二温度点之间的第一积分值,与锅外气压值在所述第一温度点和所述第二温度点之间的第二积分值的比值,小于设定比值阈值;During the air-extracting cooking process, the first integrated value of the pressure value in the pot between the first temperature point and the second temperature point of the cooking ingredients is controlled, and the pressure value outside the pot is at the first temperature point and the second The ratio of the second integral value between the temperature points is less than a set ratio threshold;其中,所述设定比值阈值等于或者小于1,所述第二温度点大于所述7第一温度点,且所述第一温度点和所述第二温度点均小于所述锅外气压值对应的沸腾温度。The set ratio threshold is equal to or less than 1, the second temperature point is greater than the 7 first temperature point, and the first temperature point and the second temperature point are both smaller than the pressure value outside the pot. Corresponding boiling temperature.
- 根据权利要求24所述的烹饪器具的烹饪控制方法,其特征在于,所述设定比值阈值等于或者小于0.8;或者,The cooking control method for a cooking appliance according to claim 24, wherein the set ratio threshold is equal to or less than 0.8; or,所述设定比值阈值等于或者小于0.6;或者,The set ratio threshold is equal to or less than 0.6; or所述设定比值阈值等于或者小于0.5;或者,The set ratio threshold is equal to or less than 0.5; or所述设定比值阈值等于或者小于0.4。The set ratio threshold is equal to or less than 0.4.
- 根据权利要求24所述的烹饪器具的烹饪控制方法,其特征在于,所述第一温度点和所述第二温度点均大于所述烹饪食材的糊化温度和设定差值温度之间的差值;或者,The cooking control method for a cooking appliance according to claim 24, wherein the first temperature point and the second temperature point are both larger than a temperature between a gelatinization temperature of the cooking ingredients and a set difference temperature. Difference; or,所述第一温度点和所述第二温度点均大于抽气开始时刻对应的温度值;或者,Both the first temperature point and the second temperature point are greater than the temperature value corresponding to the time of starting the pumping; or所述第一温度点和所述第二温度点均大于加热开始时刻对应的温度值。The first temperature point and the second temperature point are both greater than a temperature value corresponding to the heating start time.
- 根据权利要求24所述的烹饪器具的烹饪控制控制方法,其特征在于,所述第一温度点等于锅内温度的初始值。The cooking control method for a cooking appliance according to claim 24, wherein the first temperature point is equal to an initial value of a temperature in the pot.
- 根据权利要求27所述的烹饪器具的烹饪控制控制方法,其特征在于,还包括:The cooking control and control method for a cooking appliance according to claim 27, further comprising:控制所述锅内气压值在第一温度点和第二温度点之间往复变化;和/或,Controlling the pressure value in the pot to change back and forth between a first temperature point and a second temperature point; and / or,控制所述锅内气压值在所述第二温度点之后的第一设定时间内,大于所述锅外气压值。Controlling the air pressure value in the pot to be greater than the air pressure value outside the pot within a first set time after the second temperature point.
- 一种烹饪器具的烹饪控制方法,其特征在于,包括:A cooking control method for a cooking appliance, comprising:获取压力烹饪器具内的温度;Get the temperature inside the pressure cooking appliance;判断所述压力烹饪器具内的温度是否大于第一预设温度阈值;Determining whether the temperature in the pressure cooking appliance is greater than a first preset temperature threshold;如果所述压力烹饪器具内的温度大于第一预设温度阈值,识别所述压力烹饪器具内的温度所处的温度范围,根据所处的温度范围,对所述压力烹饪器具内的压力进行控制。If the temperature in the pressure cooking appliance is greater than a first preset temperature threshold, identifying a temperature range in which the temperature in the pressure cooking appliance is located, and controlling the pressure in the pressure cooking appliance according to the temperature range .
- 根据权利要求29所述的压力烹饪器具的控制方法,其特征在于,所述识别所述压力烹饪器具内的温度所处的温度范围,根据所处的温度范围,对所述压力烹饪器具内的压力进行控制,包括:The method for controlling a pressure cooking appliance according to claim 29, wherein the temperature range in which the temperature in the pressure cooking appliance is identified is determined according to the temperature range in which the temperature in the pressure cooking appliance is located. Pressure control, including:判断所述压力烹饪器具内的温度是否在第一预设温度范围内;Determining whether the temperature in the pressure cooking appliance is within a first preset temperature range;如果所述压力烹饪器具内的温度在所述第一预设温度范围内,则将所述压力烹饪器具内的压力控制在第一压力范围;If the temperature in the pressure cooking appliance is within the first preset temperature range, controlling the pressure in the pressure cooking appliance to be in the first pressure range;如果所述压力烹饪器具的温度大于所述第一预设温度范围,则进一步判断所述压力烹饪器具内的温度是否在第二预设温度范围内;If the temperature of the pressure cooking appliance is greater than the first preset temperature range, further determining whether the temperature in the pressure cooking appliance is within a second preset temperature range;如果所述压力烹饪器具内的温度在所述第二预设温度范围内,则将所述压力烹饪器具内的压力控制在第二压力范围,其中,所述第二压力范围的压力值大于所述第一压力范围的压力值。If the temperature in the pressure cooking appliance is within the second preset temperature range, controlling the pressure in the pressure cooking appliance to a second pressure range, wherein the pressure value in the second pressure range is greater than the The pressure value in the first pressure range is described.
- 如权利要求29所述的压力烹饪器具的控制方法,其特征在于,所述第一预设温度范围为所述第一预设温度阈值到第二预设温度阈值之间,所述第二预设温度范围为所述第二预设温度阈值到第三预设温度阈值之间。The method for controlling a pressure cooking appliance according to claim 29, wherein the first preset temperature range is between the first preset temperature threshold and the second preset temperature threshold, and the second preset temperature The temperature range is set between the second preset temperature threshold and the third preset temperature threshold.
- 如权利要求31所述的压力烹饪器具的控制方法,其特征在于,所述第一预设温度阈值的取值范围为55℃-65℃,所述第二预设温度阈值的取值范围为70℃-80℃,所述第三预设温度阈值的取值范围为85℃-95℃。The method for controlling a pressure cooking appliance according to claim 31, wherein the value range of the first preset temperature threshold is 55 ° C-65 ° C, and the value range of the second preset temperature threshold is 70 ° C-80 ° C, and the value of the third preset temperature threshold ranges from 85 ° C to 95 ° C.
- 如权利要求29-32任一项所述的压力烹饪器具的控制方法,其特征在于,所述第一压力范围为10kPa-80kPa,所述第二压力范围为30kPa-90kPa。The method for controlling a pressure cooking appliance according to any one of claims 29 to 32, wherein the first pressure range is from 10 kPa to 80 kPa, and the second pressure range is from 30 kPa to 90 kPa.
- 如权利要求29-32任一项所述的压力烹饪器具的控制方法,其特征在于,所述第一压力范围为20kPa-70kPa,所述第二压力范围为40kPa-90kPa。The method for controlling a pressure cooking appliance according to any one of claims 29 to 32, wherein the first pressure range is 20 kPa-70 kPa, and the second pressure range is 40 kPa-90 kPa.
- 如权利要求29-32任一项所述的压力烹饪器具的控制方法,其特征在于,所述第一压力范围为40kPa-60kPa,所述第二压力范围为50kPa-90kPa。The method for controlling a pressure cooking appliance according to any one of claims 29-32, wherein the first pressure range is 40kPa-60kPa, and the second pressure range is 50kPa-90kPa.
- 如权利要求29-32任一项所述的压力烹饪器具的控制方法,其特征在于,所述第一压力范围为60kPa-80kPa,所述第二压力范围为70kPa-90kPa。The method for controlling a pressure cooking appliance according to any one of claims 29 to 32, wherein the first pressure range is 60 kPa-80 kPa, and the second pressure range is 70 kPa-90 kPa.
- 根据权利要求29所述的烹饪器具的烹饪控制方法,其特征在于,所述识别所述压力烹饪器具内的温度所处的温度范围,根据所处的温度范围,对所述压力烹饪器具内的压力进行控制,还包括:The cooking control method for a cooking appliance according to claim 29, wherein the temperature range in which the temperature in the pressure cooking appliance is identified is determined according to the temperature range in which the temperature in the pressure cooking appliance is located. Pressure control, including:如果所述压力烹饪器具内的温度大于所述第一预设温度阈值且小于第二预设温度阈值,则将所述压力烹饪器具的压力变化值控制在第一变化范围内,其中,所述第一变化范围以所述第一预设温度阈值对应的压力为基准;If the temperature in the pressure cooking appliance is greater than the first preset temperature threshold value and less than a second preset temperature threshold value, controlling the pressure change value of the pressure cooking appliance within a first change range, wherein the The first change range is based on a pressure corresponding to the first preset temperature threshold;如果所述压力烹饪器具内的温度大于所述第二预设温度阈值且小于第三预设温度阈值,则将所述压力烹饪器具的压力变化值控制在第二变化范围内,其中,所述第二变化范围以所述第二预设温度阈值对应的压力为基准。If the temperature in the pressure cooking appliance is greater than the second preset temperature threshold and less than a third preset temperature threshold, then the pressure change value of the pressure cooking appliance is controlled within a second change range, wherein the The second variation range is based on the pressure corresponding to the second preset temperature threshold.
- 如权利要求37所述的压力烹饪器具的控制方法,其特征在于,所述第一变化范围为20kPa,所述第二变化范围为20kPa。The method for controlling a pressure cooking appliance according to claim 37, wherein the first variation range is 20 kPa, and the second variation range is 20 kPa.
- 一种烹饪器具,其特征在于,包括:A cooking appliance, comprising:锅体;Pot body盖体,所述盖体可活动地安装于所述锅体,在所述盖体处于关闭位置时所述锅体和所述盖体之间形成密封的烹饪腔;A cover body that is movably mounted on the pot body, and forms a sealed cooking cavity between the pot body and the cover body when the cover body is in a closed position;加热装置;heating equipment;真空装置,所述真空装置在所述烹饪腔密闭时对所述烹饪腔进行抽真空以使所述烹饪腔内形成负压真空;A vacuum device that evacuates the cooking cavity when the cooking cavity is closed to form a negative pressure vacuum in the cooking cavity;检测模块,所述检测模块用于在所述烹饪器具的烹饪过程中,检测所述烹饪器具的烹饪参数,其中,所述烹饪过程包括预处理阶段、升温沸腾阶段和高温沸腾阶段,所述烹饪参数包括所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中的至少一个;A detection module for detecting a cooking parameter of the cooking appliance during a cooking process of the cooking appliance, wherein the cooking process includes a pretreatment stage, a temperature-boiling stage, and a high-temperature boiling stage, the cooking process The parameters include at least one of a temperature in the cooking cavity, a pressure in the cooking cavity, and an operating time of the heating and boiling phase;控制单元,所述控制单元与所述检测模块相连,所述控制单元用于在所述烹饪器具处于所述升温沸腾阶段时,控制所述加热装置进行加热工作,并控制所述真空装置对所述烹饪腔进行抽真空,以使所述烹饪腔在所述烹饪腔内的温度达到第一温度值或大于所述第一温度值预设阈值时产生沸腾气泡,并根据所述烹饪腔内的温度、所述烹饪腔内的压力和所述升温沸腾阶段的运行时间中至少一个控制所述真空装置关闭,直至所述烹饪器具进入所述高温沸腾阶段。A control unit, which is connected to the detection module, and the control unit is configured to control the heating device to perform heating work when the cooking appliance is in the heating and boiling phase, and control the vacuum device to The cooking cavity is evacuated, so that when the temperature of the cooking cavity in the cooking cavity reaches a first temperature value or is greater than a preset threshold of the first temperature value, boiling bubbles are generated, and At least one of a temperature, a pressure in the cooking cavity, and an operating time of the temperature-boiling phase controls the vacuum device to be turned off until the cooking appliance enters the high-temperature boiling phase.
- 一种烹饪器具的控制装置,其特征在于,包括:A control device for a cooking appliance, comprising:温度获取模块,用于获取压力烹饪器具内的温度;A temperature acquisition module for acquiring a temperature in the pressure cooking appliance;第一识别模块,用于识别所述压力烹饪器具内的温度大于第一预设温度阈值;A first identification module, configured to identify that a temperature in the pressure cooking appliance is greater than a first preset temperature threshold;第二识别模块,用于在所述压力烹饪器具内的温度大于第一预设温度阈值时,识别所述压力烹饪器具内的温度所处的温度范围;A second identification module, configured to identify a temperature range in which the temperature in the pressure cooking appliance is located when the temperature in the pressure cooking appliance is greater than a first preset temperature threshold;控制模块,用于根据所处的温度范围,对所述压力烹饪器具内的压力进行控制。A control module is configured to control the pressure in the pressure cooking appliance according to the temperature range in which it is located.
- 一种非临时性计算机可读存储介质,其特征在于,其上存储有烹饪器具的烹饪控制程序,该程序被处理器执行时实现如权利要求1-28中任一所述的烹饪器具的烹饪控制方法,或者实现如权利要求29-38中任一所述的烹饪器具的烹饪控制方法。A non-transitory computer-readable storage medium, characterized in that a cooking control program for a cooking appliance is stored thereon, and when the program is executed by a processor, the cooking of the cooking appliance according to any one of claims 1-28 is performed A control method, or a cooking control method for implementing a cooking appliance according to any one of claims 29-38.
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CN201810974793.5A CN110856594B (en) | 2018-08-24 | 2018-08-24 | Cooking appliance and cooking control method thereof |
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CN201810975414.4A CN110858067B (en) | 2018-08-24 | 2018-08-24 | Pressure cooking appliance and control method and device thereof |
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