CN110507184B - Cooking appliance, control method thereof, control device thereof and computer-readable storage medium - Google Patents
Cooking appliance, control method thereof, control device thereof and computer-readable storage medium Download PDFInfo
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- CN110507184B CN110507184B CN201810490304.9A CN201810490304A CN110507184B CN 110507184 B CN110507184 B CN 110507184B CN 201810490304 A CN201810490304 A CN 201810490304A CN 110507184 B CN110507184 B CN 110507184B
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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
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
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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
- A47J27/004—Cooking-vessels with integral electrical heating means
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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
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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
- A47J27/09—Safety devices
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
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Abstract
The invention provides a cooking appliance, a control method thereof, a control device and a computer readable storage medium. The control method comprises the following steps: and controlling the air extractor to be opened or closed according to the pressure value detected by the pressure sensor so as to enable the cooking cavity to be in a pressure maintaining state. The control method provided by the invention realizes the detection of the pressure in the cooking cavity through the pressure sensor, and can give feedback at any pressure value due to accurate pressure control and sensitive response of the pressure sensor. Therefore, the pressure sensor is used for controlling the air exhaust device, so that the accuracy of controlling the cooking appliance can be improved, and the cooking performance of the cooking appliance is improved.
Description
Technical Field
The present invention relates to the field of kitchen appliances, and more particularly, to a control method and a control apparatus for a cooking appliance, and a computer-readable storage medium.
Background
The existing cooking appliances such as pressure cookers are mainly characterized in that high temperature and high pressure can be generated during cooking, and quick cooking is realized. However, as the demand for food and health increases, it is desired to retain the original flavor and nutrients of food to the maximum extent. In the related art, when a cooking device having a negative pressure cooking function is used, it is found that the deviation of the pressure in the cooker is large by using a time control method, and the cooking effect is further affected.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, a first aspect of the present invention is directed to a method of controlling a cooking appliance.
A second aspect of the present invention is directed to a control apparatus of a cooking appliance.
A third aspect of the present invention is directed to a cooking appliance.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In order to achieve the above object, a first aspect of the present invention provides a method for controlling a cooking appliance, the method comprising: and controlling the air extractor to be opened or closed according to the pressure value detected by the pressure sensor so as to enable the cooking cavity to be in a pressure maintaining state.
According to the control method provided by the technical scheme of the invention, the air exhaust device is controlled to be opened, the air exhaust device exhausts the gas in the cooking cavity, so that the cooking cavity is in a negative pressure state, the detection result of the pressure sensor is obtained, the air exhaust device is controlled to be opened or closed according to the detection result, and the cooking cavity maintains the negative pressure maintaining state within the preset time, so that the low-temperature boiling cooking of food is realized, and the original fragrance, the original taste and the nutritional ingredients of the food are further retained to the greatest extent.
The pressure sensor is used for detecting the pressure in the cooking cavity, and the pressure sensor is accurate in pressure control and sensitive in response, so that feedback can be given at any pressure value. Therefore, the pressure sensor is used for controlling the air exhaust device, so that the accuracy of controlling the cooking appliance can be improved, and the cooking performance of the cooking appliance is improved.
In addition, the control method of the cooking utensil provided by the technical scheme of the invention also has the following additional technical characteristics:
in the above technical solution, preferably, the controlling the opening or closing of the air extractor according to the pressure value detected by the pressure sensor so as to make the cooking cavity of the cooking appliance in the pressure maintaining state specifically includes: controlling the air exhaust device to be started and detecting the pressure in the cooking cavity; judging whether the pressure in the cooking cavity reaches a first preset pressure or not; if yes, controlling the air exhaust device to be closed; judging whether the pressure in the cooking cavity reaches a second preset pressure or not; if yes, the control is returned to the air exhaust device is started and the pressure in the cooking cavity is detected, and the operation is circulated, wherein the first preset pressure and the second preset pressure are negative pressures, and the absolute value of the first preset pressure is larger than the absolute value of the second preset pressure.
In the above technical solution, preferably, the range of the first preset pressure is-20 KPa to-80 KPa; and/or the absolute value of the second preset pressure is 1 KPa-5 KPa less than the absolute value of the first preset pressure.
In the above technical solution, preferably, the method for controlling a cooking appliance further includes: and when the pressure in the cooking cavity reaches the second preset pressure for the first time, the duration of the pressure maintaining state starts to be calculated, wherein the duration of the pressure maintaining state ranges from 5min to 120min.
Namely, the pressure in the cooking cavity is between the first preset pressure and the second preset pressure and is in a pressure maintaining state.
In the above technical solution, preferably, the method for controlling a cooking appliance further includes: and when the duration of the pressure maintaining state reaches the preset time, controlling the air exhaust device to be closed, and controlling the exhaust valve to be opened to enable the cooking cavity to be communicated with the outside.
In the above technical solution, preferably, the air extractor is communicated with the cooking cavity through a pipeline, the pipeline is connected with a valve, and the control method of the cooking appliance further includes: the connection or disconnection between the air exhaust device and the cooking cavity is realized by controlling the on-off of the valve.
In a second aspect of the present invention, a control device for a cooking appliance is provided, the cooking appliance includes a cooking appliance main body, an air extractor and a pressure sensor, the air extractor is disposed on the cooking appliance main body, the cooking appliance main body defines a cooking cavity, the air extractor is configured to extract gas in the cooking cavity, the pressure sensor is configured to detect pressure in the cooking cavity, and the control device for a cooking appliance includes: and the control unit is used for controlling the air exhaust device to be opened or closed according to the pressure value detected by the pressure sensor so as to enable the cooking cavity to be in a pressure maintaining state.
According to the control device provided by the technical scheme of the second aspect of the invention, the air exhaust device is controlled to be opened, the air exhaust device exhausts the gas in the cooking cavity, so that the cooking cavity is in a negative pressure state, the detection result of the pressure sensor is obtained, the air exhaust device is controlled to be opened or closed according to the detection result, and the cooking cavity is kept in a negative pressure maintaining state within a preset time, so that low-temperature boiling cooking of food is realized, and the original fragrance, the original taste and the nutritional ingredients of the food are further retained to the greatest extent.
The pressure sensor is used for detecting the pressure in the cooking cavity, and the pressure sensor is accurate in pressure control and sensitive in response, so that feedback can be given at any pressure value. Therefore, the pressure sensor is used for controlling the air exhaust device, so that the accuracy of controlling the cooking appliance can be improved, and the cooking performance of the cooking appliance is improved.
In the above technical solution, preferably, the control device of the cooking appliance further includes a determination unit; the judgment unit is used for: judging whether the pressure in the cooking cavity reaches a first preset pressure or not and judging whether the pressure in the cooking cavity reaches a second preset pressure or not; the control unit is used for controlling the air exhaust device to be opened and detecting the pressure in the cooking cavity; when the judgment unit judges that the pressure value in the cooking cavity reaches a first preset pressure, the air extraction device is controlled to be closed; and when the judgment unit judges that the pressure value in the cooking cavity reaches the second preset pressure, the control is returned to the step of controlling the air exhaust device to be opened and detect the pressure in the cooking cavity, and the steps are repeated, wherein the first preset pressure and the second preset pressure are negative pressures, and the absolute value of the first preset pressure is greater than the absolute value of the second preset pressure.
In the above technical solution, preferably, the control unit is further configured to: and when the pressure in the cooking cavity reaches the second preset pressure for the first time, the duration of the pressure maintaining state is calculated, and when the duration of the pressure maintaining state reaches the preset time, the air exhaust device is controlled to be closed, and the exhaust valve is controlled to be opened to enable the cooking cavity to be communicated with the outside.
In the above technical solution, preferably, the air extractor is communicated with the cooking cavity through a pipeline, the pipeline is connected with a valve, and the control unit is configured to control the on/off of the valve to connect or disconnect the air extractor and the cooking cavity.
An aspect of the third aspect of the present invention provides a cooking appliance, including a processor, configured to implement the steps of the method for controlling a cooking appliance according to any one of the above aspects when executing a computer program stored in a memory. Therefore, the cooking appliance has the beneficial effects of the control method of the cooking appliance according to any one of the above embodiments, and details are not repeated herein.
The cooking appliance is a pressure cooker, an electric cooker or other cooking appliances.
An aspect of a fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the method of controlling a cooking appliance according to any one of the above aspects. Therefore, the computer readable storage medium has the beneficial effects of the control method of the cooking appliance according to any of the above embodiments, and is not described herein again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a method for controlling a cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;
FIG. 3 is a graph of time versus negative pressure for one embodiment of the present invention;
FIG. 4 is a graph of time versus negative pressure for one embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of a cooking appliance according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of a cooking appliance according to an embodiment of the present invention;
fig. 7 is a schematic block diagram of a control apparatus of a cooking appliance according to an embodiment of the present invention;
fig. 8 is a schematic block diagram of a control apparatus of a cooking appliance according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:
100 cooking utensils, 1 pot body, 11 inner pot, 12 heating device, 2 pot cover, 21 exhaust valve, 22 exhaust opening, 23 cover plate, 24 face cover, 25 upper cover, 26 inner cover, 3 exhaust device, 4 pipeline, 5 valve, 6 pressure sensor, 7 cooking cavity, 200 control device, 202 control unit and 204 judging unit.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method of a cooking appliance and the cooking appliance according to some embodiments of the present invention are described below with reference to the accompanying drawings.
As shown in fig. 2, the cooking appliance 100 includes a cooking appliance main body defining a cooking cavity 7, and a gas exhaust device 3 provided on the cooking appliance main body, the gas exhaust device 3 being used to exhaust gas in the cooking cavity 7. The cooking utensil main part includes the pot body 1 and covers pot cover 2 of establishing on the pot body 1, and pot body 1 includes interior pot 11, and interior pot 11 and pot cover 2 delimit culinary art chamber 7. The pot body 1 is used for bearing the inner pot 11 and the pot cover 2. The inner pot 11 holds food therein and forms a cooking chamber 7 with the pot cover 2. Preferably, the air extracting device 3 and the exhaust valve 521 are arranged on the pot cover 2, and the heating device 12 is arranged on the pot body 1 and is positioned below the inner pot 11 for heating the inner pot 11. Air exhaust device 3 is used for 7 negative pressures of taking out of culinary art chambeies, be equipped with extraction opening 22 on the pot cover 2, extraction opening 22 is linked together with culinary art chamber 7, air suction port and extraction opening 22 of air exhaust device 3 are linked together through pipeline 4, be equipped with valve 5 on the pipeline 4, valve 5 is used for the break-make of control pipeline 4, realize air exhaust device 3 and culinary art chamber 7's intercommunication and disconnection, specifically, valve 5 outage is in the closed condition, will cook chamber 7 and air exhaust device 3 and separate, when needing 7 vacuums to culinary art chamber, valve 5 circular telegram is opened, will cook chamber 7 and air exhaust device 3 intercommunication. Specifically, the pot cover 2 comprises a cover plate 23, a face cover 24, an upper cover 25 and an inner cover 26, and the valve 5 is fixed on the upper cover 25.
The exhaust valve 21 has two states of opening and closing, the cooking chamber 7 is communicated with the outside when opened, and the cooking chamber 7 is isolated from the outside when closed. Preferably, the suction means 3 comprise a vacuum pump.
As shown in fig. 1, according to some embodiments of the present invention, there is provided a control method of a cooking appliance 100, the cooking appliance 100 includes a cooking appliance main body, an air extractor 3 disposed on the cooking appliance main body, the cooking appliance main body defines a cooking cavity 7, the air extractor 3 is used for extracting air in the cooking cavity 7, and a pressure sensor 6 is used for detecting a pressure in the cooking cavity 7, the control method of the cooking appliance 100 includes: and step S10, controlling the air extractor 3 to be opened or closed according to the pressure value detected by the pressure sensor 6 so as to enable the interior of the cooking cavity 7 to be in a pressure maintaining state.
According to the control method provided by the embodiment of the invention, the air extractor 3 is controlled to be opened, the air extractor 3 extracts the gas in the cooking cavity 7, so that the inside of the cooking cavity 7 is in a negative pressure state, the detection result of the pressure sensor 6 is obtained, and the opening or closing of the air extractor 3 is controlled according to the detection result, so that the cooking cavity 7 is kept in a negative pressure maintaining state within a preset time, the low-temperature boiling cooking of food is realized, and the original fragrance, the original taste and the nutritional ingredients of the food are further retained to the greatest extent.
The pressure sensor 6 is used for detecting the pressure in the cooking cavity 7, and the pressure sensor 6 is accurate in pressure control and sensitive in response, so that feedback can be given at any pressure value. Therefore, the control of the air extracting device 3 by the pressure sensor 6 can improve the accuracy of the control of the cooking appliance 100, thereby improving the cooking performance of the cooking appliance 100.
As shown in fig. 5, step S10 specifically includes:
step S102, controlling the air extractor 33 to be opened and detecting the pressure in the cooking cavity 77;
step S104, judging whether the pressure value in the cooking cavity 77 reaches a first preset pressure P1;
if so, executing step S106 to control the air extraction device 33 to be closed, otherwise, returning to step S102 to maintain the state that the air extraction device 3 is opened and operated;
step S108, judging whether the pressure value in the cooking cavity 77 reaches a second preset pressure P2;
if yes, returning to step S102, controlling the air extracting device 33 to open and detect the pressure in the cooking cavity 77, and if not, returning to step S106, wherein the first preset pressure and the second preset pressure are both negative pressures, and the absolute value of the first preset pressure is greater than the absolute value of the second preset pressure.
Preferably, the first preset pressure P1 ranges from-20 KPa to-80 KPa, and the first preset pressure can be, but is not limited to, -20KPa, -40KPa, -60KPa or-80 KPa.
The absolute value of the second preset pressure P2 is 1 KPa-5 KPa smaller than the absolute value of the first preset pressure.
The control method of the cooking appliance further includes: when the pressure in the cooking cavity reaches the second preset pressure for the first time, the duration of the pressure maintaining state begins to be calculated, namely the state that the pressure in the cooking cavity is between the first preset pressure and the second preset pressure is the pressure maintaining state. The duration tz of the pressure maintaining state ranges from 5min to 120min. tz can be, but is not limited to, 5min, 20min, 40min, 60min, 80min, 100min, or 120min.
Preferably, as shown in fig. 6, the method of controlling the cooking appliance 100 further includes: and step S20, when the duration tz of the pressure maintaining state reaches the preset time, controlling the air extractor 3 to be closed, and controlling the exhaust valve 21 to be opened to enable the cooking cavity to be communicated with the outside.
Preferably, the air extractor 3 is communicated with the cooking cavity 7 through a pipeline 4, the pipeline 4 is connected with a valve 5, and the control method of the cooking appliance 100 further includes: the on-off of the air extractor 3 and the cooking cavity 7 is realized by controlling the on-off of the valve 5.
The pressure cooker cover 2 is provided with an air extractor 3 and a valve 5. When a user selects the corresponding function of needing to pump negative pressure to start cooking, the system control valve 5 works, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is pumped out of the cooking cavity, and meanwhile, the pressure sensor monitors the pressure in the cooking cavity. When the pressure in the cooking cavity reaches the first preset pressure P1, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the pot is kept, meanwhile, the air exhaust device 3 stops working, and the pressure sensor continues to monitor the pressure in the cooking cavity. Because the negative pressure of the cooking cavity is gradually reduced due to the self air leakage of the pressure cooker and the evaporation of water in the cooker, when the negative pressure of the cooking cavity is smaller than a second preset pressure P2, the system control valve 5 works, the valve 5 is opened, the air extractor 3 works to extract the negative pressure of the cooking cavity, the pressure sensor continues to monitor the pressure in the cooking cavity, when the pressure in the cooking cavity reaches a first preset pressure P1, the system control valve 5 stops working, the valve 5 is closed, the airtight environment in the cooker is kept, and meanwhile, the air extractor 3 stops working. When the negative pressure of the cooking cavity is smaller than the second preset pressure P2, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and the negative pressure is extracted from the cooking cavity. Thus circulating. When tp = tz, the system control valve 5 is closed, the air extractor 3 stops working, the exhaust valve 21 is opened, outside air enters, and the pressure of the cooking cavity gradually returns to normal pressure. P1 is the maximum negative pressure value in the pressure maintaining process, and the value range is-20 KPa to-80 KPa. P2 is the minimum negative pressure value in the pressure maintaining process, and P2 is set to be 1-5KPa smaller than P1. tz is the reserved time, and the value range thereof is 0.1h-48h, preferably 0.5-24h. In fig. 3, a represents a pressure holding process, B represents a negative pressure pumping process, E represents a natural pressure reduction process, C represents the end of the natural pressure reduction and pressure holding process, and D represents a process of opening the exhaust valve and exhausting. As shown in fig. 4, a indicates a negative pressure pumping process, B indicates a natural depressurization process, C indicates the end of the natural depressurization and pressure holding process, D indicates a process in which the exhaust valve is opened to exhaust, and E indicates a pressure holding process. Fig. 3 shows that the pressure maintaining process is finished in the process of naturally reducing the pressure, and fig. 4 shows that the pressure maintaining process is finished in the process of extracting the negative pressure.
As shown in fig. 7, an embodiment of the second aspect of the present invention provides a control device 200 of a cooking appliance 100, the cooking appliance 100 includes a cooking appliance main body, an air extractor 3 disposed on the cooking appliance main body, the cooking appliance main body defining a cooking cavity 7, the air extractor 3 being used for extracting air in the cooking cavity 7, and a pressure sensor 6 being used for detecting a pressure in the cooking cavity 7, the control device 200 of the cooking appliance 100 includes: and the control unit 202 is used for controlling the opening or closing of the air extractor 3 according to the pressure value detected by the pressure sensor 6 so as to enable the interior of the cooking cavity 7 to be in a pressure maintaining state.
The control device 200 according to the embodiment of the second aspect of the present invention controls the air extractor 3 to be opened, the air extractor 3 extracts the air in the cooking cavity 7, so that the inside of the cooking cavity 7 is in a negative pressure state, obtains the detection result of the pressure sensor 6, and controls the air extractor 3 to be opened or closed according to the detection result, so that the cooking cavity 7 maintains a negative pressure maintaining state within a preset time, thereby implementing low-temperature boiling cooking of food, and further retaining the original flavor and nutritional ingredients of the food to the maximum extent.
The pressure sensor 6 is used for detecting the pressure in the cooking cavity 7, and the pressure sensor 6 is accurate in pressure control and sensitive in response, so that feedback can be given at any pressure value. Therefore, the control of the air extracting device 3 by the pressure sensor 6 can improve the accuracy of the control of the cooking appliance 100, thereby improving the cooking performance of the cooking appliance 100.
Preferably, as shown in fig. 8, the control device 200 of the cooking appliance 100 further includes a determination unit 204; the determining unit 204 is configured to: judging whether the pressure in the cooking cavity 7 reaches a first preset pressure or not and judging whether the pressure in the cooking cavity 7 reaches a second preset pressure or not; the control unit 202 is used for controlling the air extractor 3 to be started and detecting the pressure in the cooking cavity 7; when the judgment unit 204 judges that the pressure value in the cooking cavity 7 reaches the first preset pressure, the air extracting device 3 is controlled to be closed; when the judgment unit 204 judges that the pressure value in the cooking cavity 7 reaches the second preset pressure, the control unit returns to control the air extractor 3 to be opened and detect the pressure in the cooking cavity 7, and the process is repeated, wherein the first preset pressure and the second preset pressure are negative pressures, and the absolute value of the first preset pressure is greater than the absolute value of the second preset pressure.
Preferably, the first predetermined pressure P1 ranges from-20 KPa to-80 KPa, and the first predetermined pressure may be, but is not limited to, -20KPa, -40KPa, -60KPa or-80 KPa.
The absolute value of the second preset pressure P2 is 1 KPa-5 KPa smaller than the absolute value of the first preset pressure.
Preferably, the control unit 202 is further adapted to: when the pressure in the cooking cavity reaches a second preset pressure for the first time, the duration of the pressure maintaining state is calculated, and the duration tz of the pressure maintaining state ranges from 5min to 120min; and when the duration tz of the pressure maintaining state reaches the preset time, the air extractor 3 is controlled to be closed, and the exhaust valve 21 is controlled to be opened to enable the cooking cavity to be communicated with the outside.
Namely, the pressure in the cooking cavity is between the first preset pressure and the second preset pressure and is in a pressure maintaining state. tz can be, but is not limited to, 5min, 20min, 40min, 60min, 80min, 100min, or 120min.
Preferably, the air extractor 3 is communicated with the cooking cavity 7 through a pipeline 4, a valve 5 is connected to the pipeline 4, and the control unit 202 controls the on-off of the valve 5 to realize the communication or disconnection between the air extractor 3 and the cooking cavity 7.
The pressure cooker cover 2 is provided with an air extractor 3 and a valve 5. When a user selects the corresponding function of needing to pump negative pressure to start cooking, the system control valve 5 works, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is pumped out of the cooking cavity, and meanwhile, the pressure sensor monitors the pressure in the cooking cavity. When the pressure in the cooking cavity reaches the first preset pressure P1, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the cooker is kept, meanwhile, the air extracting device 3 stops working, and the pressure sensor continues to monitor the pressure in the cooking cavity. Because the pressure cooker leaks gas and the evaporation of water in the pot leads to the culinary art chamber negative pressure to reduce gradually, when the negative pressure appears in the culinary art chamber and is less than second preset pressure P2, system control valve 5 works, valve 5 is opened, air exhaust device 3 works, take out the negative pressure to the culinary art chamber, pressure sensor continues to monitor culinary art intracavity pressure, when culinary art intracavity pressure reaches first preset pressure P1, system control valve 5 stop work, valve 5 closes, keep the airtight environment in the pot, air exhaust device 3 stop work simultaneously. When the negative pressure of the cooking cavity is smaller than the second preset pressure P2, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and the negative pressure is extracted from the cooking cavity. Thus circulating. When tp = tz, the system control valve 5 is closed, the air extractor 3 stops working, the exhaust valve 21 is opened, outside air enters, and the pressure of the cooking cavity gradually returns to normal pressure. P1 is the maximum negative pressure value in the pressure maintaining process, and the value range is-20 KPa to-80 KPa. P2 is the minimum negative pressure value in the pressure maintaining process, and P2 is set to be 1-5KPa smaller than P1. tz is the reserved time, and the value range thereof is 0.1h-48h, preferably 0.5-24h. In fig. 3, a represents a pressure holding process, B represents a negative pressure pumping process, E represents a natural pressure reduction process, C represents the end of the natural pressure reduction and pressure holding process, and D represents a process of opening the exhaust valve and exhausting. As shown in fig. 4, a indicates a negative pressure pumping process, B indicates a natural pressure reduction process, C indicates a natural pressure reduction and pressure holding process completion, D indicates a process of opening the exhaust valve to exhaust, and E indicates a pressure holding process. Fig. 3 is a view showing that the pressure maintaining process is finished during the natural pressure reduction, and fig. 4 is a view showing that the pressure maintaining process is finished during the negative pressure pumping.
An embodiment of a third aspect of the present invention provides a cooking appliance 100, comprising a processor for implementing the steps of the control method of the cooking appliance 100 of any one of the above embodiments when executing a computer program stored in a memory. Therefore, the cooking appliance 100 has the beneficial effects of the control method of the cooking appliance 100 of any one of the above embodiments, and the description thereof is omitted here.
The cooking appliance 100 is a pressure cooker, rice cooker or other cooking appliance 100.
An embodiment of a fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method of the cooking appliance 100 of any of the above embodiments. Therefore, the computer readable storage medium has the beneficial effects of the control method of the cooking appliance 100 of any of the above embodiments, and is not described herein again.
In summary, in the control method of the cooking appliance 100 provided in the embodiment of the present invention, the pressure sensor controls the cooking appliance to pump negative pressure and maintain pressure, so as to realize accurate control of the cooking appliance.
The operation of controlling the negative pressure pumping and pressure maintaining of the cooking appliance through the pressure sensor can be used for a reservation stage, a cooking stage or a heat preservation and fresh-keeping stage after the cooking stage is finished.
In the description of the present invention, the term "plurality" means two or more unless explicitly specified or limited otherwise; the terms "connected," "secured," and the like are to be construed broadly and encompass, for example, a fixed connection, a removable connection, an integral connection, or an electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present specification, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present specification, the description of "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A control method of a cooking appliance is used for realizing low-temperature boiling cooking of food,
controlling the air extractor to be opened or closed according to the pressure value detected by the pressure sensor so as to enable the cooking cavity of the cooking appliance to be in a pressure maintaining state;
when the duration of the pressure maintaining state reaches the preset time, controlling the air exhaust device to be closed, and controlling the exhaust valve to be opened to enable the cooking cavity to be communicated with the outside;
according to the pressure value that pressure sensor detected, control air exhaust device's opening or closing to make cooking utensil's cooking cavity is in the pressurize state, specifically includes:
controlling the air exhaust device to be started and detecting the pressure in the cooking cavity;
judging whether the pressure in the cooking cavity reaches a first preset pressure or not;
if yes, controlling the air exhaust device to be closed;
if not, returning to control the air exhaust device to be started and detecting the pressure in the cooking cavity;
judging whether the pressure in the cooking cavity reaches a second preset pressure or not;
if so, returning to control the air extracting device to be started and detecting the pressure in the cooking cavity, otherwise, returning to control the air extracting device to be closed, and circulating the steps, wherein the first preset pressure and the second preset pressure are negative pressures, and the absolute value of the first preset pressure is greater than the absolute value of the second preset pressure;
and when the pressure in the cooking cavity reaches the second preset pressure for the first time, the duration of the pressure maintaining state is calculated.
2. The control method of a cooking appliance according to claim 1,
the range of the first preset pressure is-20 KPa to-80 KPa; and/or the absolute value of the second preset pressure is 1 KPa-5 KPa smaller than the absolute value of the first preset pressure.
3. The method of controlling a cooking appliance according to claim 1, further comprising:
the time length of the pressure maintaining state ranges from 5min to 120min.
4. The method for controlling a cooking appliance according to any one of claims 1 to 3, wherein the air extractor is communicated with the cooking cavity through a pipeline, a valve is connected to the pipeline, and the method for controlling a cooking appliance further comprises:
the connection or disconnection between the air exhaust device and the cooking cavity is realized by controlling the on-off of the valve.
5. A control device of a cooking appliance for realizing low-temperature boiling cooking of food, the cooking appliance comprising a cooking appliance body, an air extractor and a pressure sensor, the air extractor being disposed on the cooking appliance body, the cooking appliance body defining a cooking cavity, the air extractor being used for extracting gas in the cooking cavity, the pressure sensor being used for detecting pressure in the cooking cavity, the control device of the cooking appliance comprising:
the control unit is used for controlling the air exhaust device to be opened or closed according to the pressure value detected by the pressure sensor so as to enable the cooking cavity to be in a pressure maintaining state;
the control unit is further configured to:
when the pressure in the cooking cavity reaches a second preset pressure for the first time, the duration of the pressure maintaining state starts to be calculated, and when the duration of the pressure maintaining state reaches a preset time, the air exhaust device is controlled to be closed, and the exhaust valve is controlled to be opened to enable the cooking cavity to be communicated with the outside;
the control device of the cooking appliance further comprises a judging unit;
the judgment unit is used for: judging whether the pressure in the cooking cavity reaches a first preset pressure or not and judging whether the pressure in the cooking cavity reaches a second preset pressure or not;
the control unit is used for controlling the air exhaust device to be opened and detecting the pressure in the cooking cavity; when the judgment unit judges that the pressure value in the cooking cavity reaches a first preset pressure, the air exhaust device is controlled to be closed; when the judgment unit judges that the pressure value in the cooking cavity does not reach the first preset pressure, the control unit returns to control the air extracting device to be started and detects the pressure in the cooking cavity; when the judging unit judges that the pressure value in the cooking cavity reaches the second preset pressure, the air extracting device is controlled to be started and the pressure in the cooking cavity is detected, when the judging unit judges that the pressure value in the cooking cavity does not reach the second preset pressure, the air extracting device is controlled to be closed, and the process is circulated, wherein the first preset pressure and the second preset pressure are negative pressures, and the absolute value of the first preset pressure is larger than the absolute value of the second preset pressure;
the control unit is further configured to: and when the pressure in the cooking cavity reaches the second preset pressure for the first time, the duration of the pressure maintaining state is calculated.
6. The control device of the cooking appliance according to claim 5, wherein the air extractor is communicated with the cooking cavity through a pipeline, a valve is connected to the pipeline, and the control unit is used for controlling the on-off of the valve to realize the communication or disconnection between the air extractor and the cooking cavity.
7. A cooking appliance, characterized by comprising a processor for implementing the steps of the control method of the cooking appliance according to any one of claims 1 to 4 when executing a computer program stored in a memory.
8. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program when executed by a processor implements the steps of a method of controlling a cooking appliance as claimed in any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810490304.9A CN110507184B (en) | 2018-05-21 | 2018-05-21 | Cooking appliance, control method thereof, control device thereof and computer-readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810490304.9A CN110507184B (en) | 2018-05-21 | 2018-05-21 | Cooking appliance, control method thereof, control device thereof and computer-readable storage medium |
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| CN110507184A CN110507184A (en) | 2019-11-29 |
| CN110507184B true CN110507184B (en) | 2022-12-06 |
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