CN110507172B - 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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- CN110507172B CN110507172B CN201810490305.3A CN201810490305A CN110507172B CN 110507172 B CN110507172 B CN 110507172B CN 201810490305 A CN201810490305 A CN 201810490305A CN 110507172 B CN110507172 B CN 110507172B
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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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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 in the heat preservation stage, the air exhaust device is controlled to be started, and the air exhaust device is controlled to work intermittently. According to the control method provided by the invention, in the heat preservation stage, the air exhaust device is controlled to be started, the air exhaust device exhausts the gas in the cooking cavity, and the cooking cavity is vacuumized, so that the cooking cavity is in a negative pressure state, the content of oxygen in the cooking cavity can be reduced, the oxidation reaction of food and the speed of bacterial reproduction are slowed down, and the time of the cooking appliance for preserving the food and the freshness of the food are prolonged.
Description
Technical Field
The present invention relates to the field of kitchen appliances, and more particularly, to a control method of a cooking appliance, a control device, a cooking appliance, and a computer-readable storage medium.
Background
The existing cooking appliances such as pressure cookers need to preserve food for a period of time after cooking, and the pressure cookers have short preservation time for food, mainly because the food in the cooker undergoes oxidation reaction and the bacteria in the cooker breed to cause food decay.
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, according to a first aspect of the present invention, there is provided a method for controlling a cooking appliance, the cooking appliance including a cooking appliance main body defining a cooking cavity, and an air extractor provided on the cooking appliance main body for extracting air from the cooking cavity, the method comprising: and in the heat preservation stage, the air exhaust device is controlled to be started and is controlled to work intermittently.
According to the control method of the cooking appliance provided by the technical scheme, in the heat preservation stage, the air exhaust device is controlled to be started, the air exhaust device exhausts the gas in the cooking cavity, and the cooking cavity is vacuumized, so that the cooking cavity is in a negative pressure state, the content of oxygen in the cooking cavity can be reduced, the oxidation reaction of food and the bacterial reproduction speed can be reduced, and the food preservation time and the food freshness of the cooking appliance can be prolonged.
The control air exhaust device intermittent type work can enough realize taking out the negative pressure to the culinary art intracavity, can also reduce air exhaust device's operating duration, improves air exhaust device's life on the one hand, and on the other hand reduces cooking utensil's energy consumption.
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 foregoing technical solution, preferably, the heat preservation stage controls the air exhaust device to be opened and controls the air exhaust device to intermittently operate, and specifically includes: controlling the air exhaust device to be started and run for a first preset time; controlling the air exhaust device to be closed; and after the second preset time, returning to the step of controlling the air exhaust device to be started and operate for the first preset time, and circulating the steps.
In the above technical solution, preferably, the first preset duration ranges from 60s to 180 s; and/or the second preset duration ranges from 120s to 600 s.
In the above technical solution, preferably, the cooking appliance further includes a pressure detection device disposed on the cooking appliance main body, and configured to detect a pressure in the cooking cavity, and the heat preservation stage controls the air exhaust device to be opened and controls the air exhaust device to intermittently operate, specifically including: 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 foregoing technical solution, preferably, the heat preservation stage controls the air exhaust device to be opened and controls the air exhaust device to intermittently operate, and specifically includes: cooking utensil is still including setting up high-pressure controlling means in the cooking utensil main part is used for detecting the pressure in the culinary art intracavity, the heat preservation stage, control air exhaust device opens, specifically includes: controlling the air exhaust device to be started, and detecting the pressure in the cooking cavity; when the pressure in the cooking cavity reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device, and maintaining the air extracting device to continuously operate for a first preset time; and controlling the air exhaust device to be closed, receiving a signal sent by the high-pressure control device when the pressure in the cooking cavity reaches the preset high-pressure threshold, controlling the air exhaust device to be opened and run for a second preset time, and circulating the steps.
In the foregoing technical solution, preferably, the cooking appliance further includes a low pressure control device disposed on the cooking appliance main body, and is configured to detect a pressure in the cooking cavity, and control the air exhaust device to open and control the air exhaust device to intermittently operate in the heat preservation stage, specifically including: controlling the air exhaust device to be started, and detecting the pressure in the cooking cavity; and when the pressure in the cooking cavity reaches a preset low-pressure threshold value, receiving a signal sent by the low-pressure control device, controlling the air exhaust device to be closed, controlling the air exhaust device to be opened after a preset time, and circulating the steps.
In the above technical solution, preferably, the cooking appliance further includes a low pressure control device and a high pressure control device which are arranged on the cooking appliance main body, and both of them are used for detecting the pressure in the cooking cavity, and the heat preservation stage controls the air exhaust device to be opened and controls the air exhaust device to intermittently work, and specifically includes: controlling the air exhaust device to be started, and detecting the pressure in the cooking cavity; when the pressure in the cooking cavity reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device, and maintaining the air exhaust device to continue to operate; when the pressure in the cooking cavity reaches a preset low-pressure threshold value, receiving a signal sent by the low-pressure control device, and controlling the air exhaust device to be closed; when the pressure in the cooking cavity reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device, and controlling the air exhaust device to be opened; and returning to receive a signal sent by the low-pressure control device when the pressure in the cooking cavity reaches a preset low-pressure threshold value, and controlling the air exhaust device to be closed, wherein the steps are repeated, the preset low-pressure threshold value and the preset high-pressure threshold value are negative pressure, and the absolute value of the preset low-pressure threshold value is greater than the absolute value of the preset high-pressure threshold value.
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 the foregoing technical solution, preferably, the heat preservation stage further includes, before controlling the air exhaust device to be opened: controlling the opening of an exhaust valve; detecting the temperature in the cooking cavity, or detecting the pressure in the cooking cavity, or recording the duration of the exhaust valve in an opening state; judging whether the temperature in the cooking cavity reaches a preset heat preservation temperature or not, or judging whether the pressure in the cooking cavity reaches a preset heat preservation pressure or not, or judging whether the duration of the exhaust valve in the opening state reaches a third preset duration or not; and if so, controlling the exhaust valve to close.
In the above technical solution, preferably, the preset heat preservation temperature range is 90 ℃ to 101 ℃.
In the above technical solution, preferably, the method for controlling a cooking appliance further includes: a heat preservation stage, wherein the temperature in the cooking cavity is detected; judging whether the temperature in the cooking cavity reaches the heat preservation lower limit temperature or not; if yes, controlling the heating device to be started; judging whether the temperature in the cooking cavity reaches the upper heat-preservation limit temperature or not; if yes, controlling the heating device to be closed; wherein the lower temperature limit of the heat preservation is lower than the upper temperature limit of the heat preservation.
In the above technical scheme, preferably, the range of the heat preservation lower limit temperature is 35 ℃ to 75 ℃; and/or the range of the upper limit temperature of the heat preservation is 40-80 ℃.
In the above technical solution, preferably, the duration of the heat preservation stage ranges from 0.1h to 88 h.
The technical scheme of the second aspect of the invention provides a control device of a cooking appliance, the cooking appliance comprises a cooking appliance main body and an air extracting device arranged on the cooking appliance main body, the cooking appliance main body defines a cooking cavity, the air extracting device is used for extracting air in the cooking cavity, and the control device of the cooking appliance is used for executing the control method of the cooking appliance in any one of the technical schemes.
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 schematic flow chart of a control method of a cooking appliance according to a first embodiment of the invention;
fig. 2 is a schematic structural diagram of a cooking appliance according to a first embodiment of the invention;
fig. 3 is a flowchart illustrating a control method of a cooking appliance according to a first embodiment of the invention;
fig. 4 is a flowchart illustrating a control method of a cooking appliance according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of a cooking appliance according to a third embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of a cooking appliance according to a fourth embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of a cooking appliance according to a fifth embodiment of the present invention;
fig. 8 is a flowchart illustrating a control method of a cooking appliance according to a first embodiment of the present invention;
fig. 9 is a schematic block diagram of a control apparatus of a cooking appliance according to a sixth embodiment of the present invention;
fig. 10 is a schematic block diagram of a control device of a cooking appliance according to a sixth embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 10 is:
100 cooking utensils, 1 pot body, 11 inner pot, 12 heating device, 2 pot cover, 21 exhaust valve, 3 air extractor, 4 pipelines, 5 valves, 6 cooking cavity, 7 temperature detector, 200 controller, 202 controller, 204 judging unit and 206 detector.
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 will be rendered by reference to the appended drawings. 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 cooking appliance, a control method thereof, a control apparatus thereof, a computer-readable storage medium control method thereof, and a cooking appliance according to some embodiments of the present invention are described below with reference to the accompanying drawings, and are specifically explained with the cooking appliance being a pressure cooker.
As shown in fig. 2, the cooking appliance 100 includes a cooking appliance main body defining a cooking cavity 6, and an air extracting device 3 provided on the cooking appliance main body for extracting air in the cooking cavity 6. 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 6. 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 cavity 6 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. Air exhaust device 3 is used for 6 negative pressures of taking out of culinary art chamber, be equipped with extraction opening 22 on pot cover 2, extraction opening 22 is linked together with culinary art chamber 6, 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 6's intercommunication and disconnection, specifically, valve 5 outage is in the closed condition, separate culinary art chamber 6 and air exhaust device 3, when needing 6 vacuums to culinary art chamber, valve 5 circular telegram is opened, with culinary art chamber 6 and air exhaust device 3 intercommunication. Specifically, the pot cover 2 comprises a cover plate, a face cover, an upper cover and an inner cover, and the valve 5 is fixed on the upper cover.
The exhaust valve 21 has two states of opening and closing, the cooking chamber 6 is communicated with the outside when opened, and the cooking chamber 6 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, where the cooking appliance 100 includes a cooking appliance main body and a gas extraction device 3 disposed on the cooking appliance main body, the cooking appliance main body defines a cooking cavity 6, and the gas extraction device 3 is used for extracting gas in the cooking cavity 6, the control method of the cooking appliance 100 includes: and step S10, in the heat preservation stage, controlling the air extracting device 3 to be started, and controlling the air extracting device 3 to work intermittently.
In the control method of the cooking appliance 100 provided by the above embodiment of the present invention, in the heat preservation stage, the air extractor 3 is controlled to be opened, the air extractor 3 extracts the air in the cooking cavity 6, and the cooking cavity 6 is vacuumized, so that the inside of the cooking cavity 6 is in the negative pressure state, the content of oxygen in the cooking cavity 6 can be reduced, the oxidation reaction of food and the speed of bacterial propagation can be slowed, and the time of the cooking appliance 100 for preserving food and the freshness of food can be prolonged.
The intermittent operation of the air exhaust device 3 can be controlled to realize the negative pressure pumping in the cooking cavity 6, the working time of the air exhaust device 3 can be reduced, on one hand, the service life of the air exhaust device 3 is prolonged, and on the other hand, the energy consumption of the cooking appliance 100 is reduced.
The first embodiment is as follows:
as shown in fig. 8, a control method of a cooking appliance 100, the cooking appliance 100 includes a cooking appliance main body and an air extracting device 3 disposed on the cooking appliance main body, the cooking appliance main body defines a cooking cavity 6, the air extracting device 3 is used for extracting air in the cooking cavity 6, and the control method of the cooking appliance 100 includes: and S100, in the heat preservation stage, controlling the air exhaust device 3 to be started, and controlling the air exhaust device 3 to work intermittently.
Preferably, as shown in fig. 3, step S100 specifically includes:
step S102, controlling the air extraction device 3 to be started and run for a first preset time;
step S104, controlling the air extracting device 3 to be closed;
and after the second preset time period, returning to the step S102, and circulating the steps.
Preferably, the first preset time period ranges from 60s to 180s, and the first preset time period may be, but is not limited to, 60s, 80s, 90s, 120s, 150s, or 180 s. Further, the first preset time period ranges from 80s to 150 s.
The second preset time period ranges from 120s to 600s, and the second preset time period may be, but is not limited to, 120s, 180s, 200s, 300s, 400s, 480s, 500s, or 600 s. Further, the second preset duration ranges from 180s to 480 s.
Preferably, the air extractor 3 is connected to the cooking cavity 6 through a pipeline 4, the pipeline 4 is connected to a valve 5, and the control method of the cooking apparatus 100 further includes: the on-off of the valve 5 is controlled to realize the connection or disconnection of the air extractor 3 and the cooking cavity 6.
Preferably, the heat preservation stage, before controlling the air extracting device 3 to be opened, further includes:
step S10, opening the exhaust valve 21;
step S20, detecting the temperature in the cooking chamber 6, or detecting the pressure in the cooking chamber 6, or recording the duration of the exhaust valve 21 being in the open state;
step S30, determining whether the temperature in the cooking cavity 6 reaches a preset heat preservation temperature, or determining whether the pressure in the cooking cavity 6 reaches a preset heat preservation pressure, or determining whether the duration of the exhaust valve 21 maintaining the open state reaches a third preset duration;
if yes, step S40 is executed to close the exhaust valve 21.
The preset heat preservation temperature is in the range of 90-101 ℃, and the preset heat preservation temperature can be, but is not limited to, 90 ℃, 95 ℃, 100 ℃ or 101 ℃. Further, the preset heat preservation temperature range is 95-100 ℃.
Preferably, the control method of the cooking appliance 100 further includes:
step S50, a heat preservation phase, detecting the temperature in the cooking cavity 6;
step S60, judging whether the temperature in the cooking cavity 6 reaches the heat preservation lower limit temperature;
if yes, go to step S70 to control the heating device 12 to be turned on;
step S80, determining whether the temperature in the cooking cavity 6 reaches the upper limit temperature of heat preservation;
if yes, step S90 is executed to control the heating device 12 to be turned off.
Preferably, the lower temperature limit of the heat preservation is in the range of 35 ℃ to 75 ℃, and the lower temperature limit of the heat preservation can be, but is not limited to, 35 ℃, 45 ℃, 55 ℃, 65 ℃, 70 ℃ or 75 ℃. Further, the lower limit temperature of the heat preservation is 45-70 ℃.
The upper temperature limit of the heat preservation is 40-80 ℃, and the upper temperature limit of the heat preservation can be, but is not limited to, 40 ℃, 50 ℃, 60 ℃, 70 ℃ or 80 ℃. Further, the upper limit temperature of the heat preservation is 50 ℃ to 70 ℃.
Preferably, the duration of the incubation period ranges from 0.1h to 88h, and the duration of the incubation period can be, but is not limited to, 0.1h, 12.0h, 24.0h, 36.0h, 48.0h, 60.0h, 72.0h, or 88.0 h. Further, the sum of the first preset time period and the time period of the cycle ranges from 0.5h to 24.0 h.
The temperature detecting device 7 for detecting the temperature in the cooking cavity 6 may be a temperature sensor or a temperature controller, and the following describes a control method for the temperature controller. After the high-temperature and high-pressure cooking of the electric pressure cooker is finished, the system controls the exhaust valve 21 to open for exhausting, so that the pressure and the temperature in the cooking cavity 6 are reduced, and at the moment, the temperature controller detects the temperature T in the cooking cavity 6. When T is less than or equal to the preset heat preservation temperature T1, the system controls the exhaust valve 21 to close. At the moment, the system starts to time, the accumulated time is tz, and the preset time length of tz for heat preservation and fresh preservation is the time length of the heat preservation stage. The temperature controller continues to detect the temperature T inside the cooking chamber 6. When T is less than or equal to T2, the air extractor 3 starts to operate, the valve 5 is opened, the cumulative time is T, and when T equals T0, the air extractor 3 stops operating, and the valve 5 is closed. The cumulative time is tb, and when tb is t1, the air extracting device 3 starts to work, the valve 5 is opened, and the cumulative time is t. When t is t0, the operation of the air extractor 3 is stopped, and the valve 5 is closed, thereby circulating. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example two:
different from the first embodiment, preferably, as shown in fig. 4, the cooking appliance 100 further includes a pressure detecting device disposed on the cooking appliance main body, for detecting the pressure in the cooking cavity 6, and step S10 specifically includes:
step S102, controlling the air extraction device 3 to be started and detecting the pressure in the cooking cavity 6;
step S104, judging whether the pressure value in the cooking cavity 6 reaches a first preset pressure or not;
if so, executing step S106 to control the air extraction device 3 to be closed, otherwise, returning to step S102 to maintain the state of the air extraction device 3 being opened and running;
step S108, judging whether the pressure value in the cooking cavity 6 reaches a second preset pressure or not;
if yes, returning to the step S102, controlling the air extracting device 33 to open and detect the pressure in the cooking cavity 6, and repeating the steps, otherwise, returning to the 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 pressure detection means comprises a pressure sensor.
In the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, negative pressure is pumped out of the cooking cavity 6, and meanwhile the pressure sensor monitors the pressure in the cooking cavity 6. When the pressure in the cooking cavity 6 reaches the first preset pressure P1, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is maintained, meanwhile, the air extractor 3 stops working, and the pressure sensor continues to monitor the pressure in the cooking cavity 6. Because the negative pressure of the cooking cavity 6 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 6 is smaller than the second preset pressure P2, the system control valve 5 works, the valve 5 is opened, the air extractor 3 works, the negative pressure of the cooking cavity 6 is extracted, the pressure sensor continues to monitor the pressure in the cooking cavity 6, when the pressure in the cooking cavity 6 reaches the 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 6 is less than the second preset P2, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and the negative pressure is extracted from the cooking cavity 6, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example three:
different from the first embodiment, as shown in fig. 5, the cooking appliance further includes a high pressure control device disposed on the cooking appliance main body and used for detecting the pressure in the cooking cavity 6, and the step S10 specifically includes: step S10 specifically includes:
step S102, controlling the air extraction device 3 to be started, and detecting the pressure in the cooking cavity 6;
step S104, judging whether the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value P1;
if yes, executing step S106, receiving a signal sent by the high-pressure control device, maintaining the air extraction device 3 to continue to operate for a first preset time period t1, and if not, returning to step S102;
step S108, controlling the air extracting device 3 to be closed;
step S110, judging whether the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value P1;
if yes, step S112 is executed, the signal sent by the high pressure control device 7 is received, and the air extraction device 33 is controlled to be opened and run for a second preset time period t2, if no, the step S108 is returned to, and the process is repeated.
Next, the high-pressure control device is used as a pressure switch, and the preset high-pressure threshold value is P1. In the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped to the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, a pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, the accumulated time has two t and tp, when t equals t1, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air exhaust device 3 stops working. Because the pressure cooker self leaks gas and the evaporation of water in the pot leads to culinary art chamber 6 negative pressure to reduce gradually, when culinary art chamber 6 pressure reduces and the negative pressure appears and is less than P1, the work of system control valve 5, valve 5 is opened, air exhaust device 3 works, to 6 negative pressures of taking out in culinary art chamber, simultaneously, the system begins the timing, the accumulative total time is t, when t is t2, 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 pressure of the cooking cavity 6 is reduced and the negative pressure is smaller than P1, the system control valve 5 works, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is extracted from the cooking cavity 6, meanwhile, the system starts to time, the accumulated time is t, when t is equal to tn, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the pot is kept, and meanwhile, the air exhaust device 3 stops working. Thus circulating. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example four:
different from the first embodiment, as shown in fig. 6, the cooking appliance 100 further includes a low pressure control device disposed on the cooking appliance main body and used for detecting the pressure in the cooking cavity 6, and the step S10 specifically includes: step S10 specifically includes:
step S102, controlling the air extraction device 3 to be started, and detecting the pressure in the cooking cavity 6;
step S104, judging whether the pressure in the cooking cavity 6 reaches a preset low-pressure threshold value P1;
if yes, step S106 is executed, the signal sent by the low pressure control device is received, the air extraction device 3 is controlled to be closed, the air extraction device 3 is controlled to be opened after the preset time duration, the step S104 is returned again, and the process is repeated. If not, the process returns to the step S102.
The following description will be made with the low pressure control device as a pressure switch and the preset low pressure threshold value as P1. And in the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped out of the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, the accumulated time has two times t and tp, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the cooker is kept, and the air exhaust device 3 stops working at the same time. When t is t1, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and negative pressure is extracted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and the air extractor 3 stops working at the same time. When t is t2, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and negative pressure is extracted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example five:
the difference from the first embodiment is that, as shown in fig. 7, step S10 specifically includes: the cooking appliance 100 further includes a low pressure control device and a high pressure control device disposed on the cooking appliance main body, both of which are used for detecting the pressure in the cooking cavity 6, and step S10 specifically includes:
step S102, controlling the air extractor 3 to be started, and detecting the pressure in the cooking cavity 69;
step S104, judging whether the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value P1;
if yes, executing step S106, receiving a signal sent by the high-pressure control device, and maintaining the air extraction device 3 to continue to operate; if not, returning to the step S102;
step S108, judging whether the pressure in the cooking cavity 6 reaches a preset low-pressure threshold value P2;
if yes, executing step S110, receiving a signal sent by the low-pressure control device, controlling the air extraction device 3 to be closed, and if not, returning to step S106;
step S112, judging whether the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value P1;
if yes, executing step S114, receiving a signal sent by the high pressure control device, and controlling the air extraction device 3 to open;
if not, returning to the step S108, and repeating the steps, wherein the preset low-pressure threshold value and the preset high-pressure threshold value are both negative pressure, and the absolute value of the preset low-pressure threshold value is greater than that of the preset high-pressure threshold value.
The low-pressure control device and the high-pressure control device are both pressure switches. And in the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped out of the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, two tp times are accumulated, and meanwhile, the air extraction device 3 continues to work to extract negative pressure to the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P2, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working. Because the negative pressure of the cooking cavity 6 is gradually reduced due to the self air leakage of the pressure cooker and the evaporation of water in the cooker, when the pressure of the cooking cavity 6 is reduced and the negative pressure is smaller than P1, the pressure switch is triggered, the pressure switch sends a signal, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and the negative pressure is exhausted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P2, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Preferably, the low pressure detection device is a first pressure switch, the high pressure detection device is a second pressure switch, or the low pressure detection device and the high pressure detection device are the same pressure switch.
The technical scheme of the second aspect of the invention provides a control device 200 of a cooking appliance 100, the cooking appliance 100 comprises a cooking appliance body and an air extracting device 3 arranged on the cooking appliance body, the cooking appliance body defines a cooking cavity 6, the air extracting device 3 is used for extracting air in the cooking cavity 6, and the control device 200 of the cooking appliance 100 comprises: and the control unit 202 is used for controlling the air extracting device 3 to be started in the heat preservation stage and controlling the air extracting device 3 to work intermittently.
In the heat preservation stage, the control device 200 of the cooking appliance 100 provided by the above technical scheme of the invention controls the air extractor 3 to be opened, the air extractor 3 extracts the gas in the cooking cavity 6, and the cooking cavity 6 is vacuumized, so that the interior of the cooking cavity 6 is in a negative pressure state, the content of oxygen in the cooking cavity 6 can be reduced, the oxidation reaction of food and the speed of bacterial propagation are slowed down, and the time of preserving the food and the freshness of the food by the cooking appliance 100 are prolonged. The intermittent operation of the air exhaust device 3 can be controlled to realize the negative pressure pumping in the cooking cavity 6, the working time of the air exhaust device 3 can be reduced, on one hand, the service life of the air exhaust device 3 is prolonged, and on the other hand, the energy consumption of the cooking appliance 100 is reduced.
Example six:
as shown in fig. 9 and 10, the control device 200 of the cooking appliance 100 includes: and the control unit 202 is used for controlling the air extracting device 3 to be started in the heat preservation stage and controlling the air extracting device 3 to work intermittently.
Preferably, the control unit 202 is configured to: controlling the air extracting device 3 to be started and run for a first preset time; controlling the air extracting device 3 to be closed; after the second preset time, the control device returns to control the air pumping device 3 to be started and operate for the first preset time, and the process is circulated.
Preferably, the first preset time period ranges from 60s to 180s, and the first preset time period may be, but is not limited to, 60s, 80s, 90s, 120s, 150s, or 180 s. Further, the first preset time period ranges from 80s to 150 s.
The second preset time period ranges from 120s to 600s, and the second preset time period may be, but is not limited to, 120s, 180s, 200s, 300s, 400s, 480s, 500s, or 600 s. Further, the second preset duration ranges from 180s to 480 s.
Preferably, the air extractor 3 is in communication with the cooking chamber 6 through a pipe 4, the pipe 4 being connected to a valve 5, the control unit 202 being configured to: the on-off of the valve 5 is controlled to realize the connection or disconnection of the air extractor 3 and the cooking cavity 6.
Preferably, control device 200 of cooking appliance 100 further comprises a detection unit 206 for detecting the temperature inside cooking chamber 6, or detecting the pressure inside cooking chamber 6, or recording the duration of time that exhaust valve 21 remains in the open state;
the control device 200 of the cooking appliance 100 further includes a determining unit 204, configured to determine whether the temperature in the cooking cavity 6 reaches a preset heat preservation temperature, or determine whether the pressure in the cooking cavity 6 reaches a heat preservation upper limit temperature, or determine whether a duration of the exhaust valve 21 maintaining the open state reaches a third preset duration;
the control unit 202 is configured to: controlling the exhaust valve 21 to be opened; when the judging unit 204 judges that the temperature in the cooking cavity 6 reaches the preset heat preservation temperature, or judges that the pressure in the cooking cavity 6 reaches the heat preservation upper limit temperature, or judges that the duration of the open state of the exhaust valve 21 reaches a third preset duration, the exhaust valve 21 is controlled to be closed.
The preset heat preservation temperature is in the range of 90-101 ℃, and the preset heat preservation temperature can be, but is not limited to, 90 ℃, 95 ℃, 100 ℃ or 101 ℃. Further, the preset heat preservation temperature range is 95-100 ℃.
Preferably, the control device 200 of the cooking appliance 100 further comprises a detection unit 206 for detecting the temperature inside the cooking chamber 6 during the keep warm phase; the control device 200 of the cooking appliance 100 further includes a determination unit 204 for determining whether the temperature in the cooking cavity 6 reaches a heat preservation lower limit temperature; judging whether the temperature in the cooking cavity 6 reaches the upper limit temperature of heat preservation; the control unit 202 is configured to: when the judging unit 204 judges that the temperature in the cooking cavity 6 reaches the heat preservation lower limit temperature, the heating device 12 is controlled to be started; the judgment unit 204 controls the heating device 12 to be turned off when judging that the temperature in the cooking cavity 6 reaches the heat preservation upper limit temperature.
Preferably, the lower temperature limit of the heat preservation is in the range of 35 ℃ to 75 ℃, and the lower temperature limit of the heat preservation can be, but is not limited to, 35 ℃, 45 ℃, 55 ℃, 65 ℃, 70 ℃ or 75 ℃. Further, the lower limit temperature of the heat preservation is 45-70 ℃.
The upper temperature limit of the heat preservation is 40-80 ℃, and the upper temperature limit of the heat preservation can be, but is not limited to, 40 ℃, 50 ℃, 60 ℃, 70 ℃ or 80 ℃. Further, the upper limit temperature of the heat preservation is 50 ℃ to 70 ℃.
Preferably, the duration of the incubation period ranges from 0.1h to 88h, and the duration of the incubation period can be, but is not limited to, 0.1h, 12.0h, 24.0h, 36.0h, 48.0h, 60.0h, 72.0h, or 88.0 h. Further, the sum of the first preset time period and the time period of the cycle ranges from 0.5h to 24.0 h.
The device for detecting the temperature in the cooking cavity 6 may be a temperature sensor or a temperature controller, and the following describes a control method for the temperature controller. After the high-temperature and high-pressure cooking of the electric pressure cooker is finished, the system controls the exhaust valve 21 to open for exhausting, so that the pressure and the temperature in the cooking cavity 6 are reduced, and at the moment, the temperature controller detects the temperature T in the cooking cavity 6. When T is less than or equal to the preset heat preservation temperature T1, the system controls the exhaust valve 21 to close. At the moment, the system starts to time, the accumulated time is tz, and the preset time length of tz for heat preservation and fresh preservation is the time length of the heat preservation stage. The temperature controller continues to detect the temperature T inside the cooking chamber 6. When T is less than or equal to T2, the air extractor 3 starts to operate, the valve 5 is opened, the cumulative time is T, and when T equals T0, the air extractor 3 stops operating, and the valve 5 is closed. The cumulative time is tb, and when tb is t1, the air extracting device 3 starts to work, the valve 5 is opened, and the cumulative time is t. When t is t0, the operation of the air extractor 3 is stopped, and the valve 5 is closed, thereby circulating. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example seven:
the difference from the sixth embodiment is that, preferably, the cooking appliance 100 further comprises a pressure detecting device arranged on the cooking appliance main body for detecting the pressure in the cooking cavity 6, and the control device 200 of the cooking appliance 100 comprises a judging unit 204, and the judging unit 204 is used for: judging whether the pressure in the cooking cavity 6 reaches a first preset pressure or not; judging whether the pressure in the cooking cavity 6 reaches a second preset pressure or not;
the control unit 202 is used; controlling the air extractor 3 to be opened and detecting the pressure in the cooking cavity 6; when the judging unit 204 judges that the pressure in the cooking cavity 6 reaches the first preset pressure, the air extracting device 3 is controlled to be closed; when the determining unit 204 determines whether the pressure in the cooking cavity 6 reaches the second preset pressure, the control unit returns to control the air extractor 3 to be turned on and detect the pressure in the cooking cavity 6, 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 pressure detection means comprises a pressure sensor.
In the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, negative pressure is pumped out of the cooking cavity 6, and meanwhile the pressure sensor monitors the pressure in the cooking cavity 6. When the pressure in the cooking cavity 6 reaches the first preset pressure P1, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is maintained, meanwhile, the air extractor 3 stops working, and the pressure sensor continues to monitor the pressure in the cooking cavity 6. Because the negative pressure of the cooking cavity 6 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 6 is smaller than the second preset pressure P2, the system control valve 5 works, the valve 5 is opened, the air extractor 3 works, the negative pressure of the cooking cavity 6 is extracted, the pressure sensor continues to monitor the pressure in the cooking cavity 6, when the pressure in the cooking cavity 6 reaches the 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 6 is less than the second preset P2, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and the negative pressure is extracted from the cooking cavity 6, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example eight:
the difference from the sixth embodiment is that, preferably, the cooking appliance 100 further comprises a high pressure control device arranged on the cooking appliance main body for detecting the pressure in the cooking cavity 6, and the control unit 202 is used for: controlling the air extractor 3 to be opened and detecting the pressure in the cooking cavity 6; when the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value, receiving a signal sent by a high-pressure control device, and maintaining the air extraction device 3 to continuously operate for a first preset time; and controlling the air exhaust device 3 to be closed, receiving a signal sent by the high-pressure control device when the pressure in the cooking cavity 6 reaches a preset high-pressure threshold, controlling the air exhaust device 3 to be opened and run for a second preset time, and circulating the steps.
Next, the high-pressure control device is used as a pressure switch, and the preset high-pressure threshold value is P1. In the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped to the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, a pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, the accumulated time has two t and tp, when t equals t1, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air exhaust device 3 stops working. Because the pressure cooker self leaks gas and the evaporation of water in the pot leads to culinary art chamber 6 negative pressure to reduce gradually, when culinary art chamber 6 pressure reduces and the negative pressure appears and is less than P1, the work of system control valve 5, valve 5 is opened, air exhaust device 3 works, to 6 negative pressures of taking out in culinary art chamber, simultaneously, the system begins the timing, the accumulative total time is t, when t is t2, 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 pressure of the cooking cavity 6 is reduced and the negative pressure is smaller than P1, the system control valve 5 works, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is extracted from the cooking cavity 6, meanwhile, the system starts to time, the accumulated time is t, when t is equal to tn, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the pot is kept, and meanwhile, the air exhaust device 3 stops working. Thus circulating. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example nine:
the difference from the sixth embodiment is that, preferably, the cooking appliance 100 further comprises a low pressure control device arranged on the cooking appliance main body for detecting the pressure in the cooking cavity 6, and the control unit 202 is used for: controlling the air extractor 3 to be opened and detecting the pressure in the cooking cavity 6; when the pressure in the cooking cavity 6 reaches a preset low-pressure threshold value, a signal sent by the low-pressure control device is received, the air exhaust device 3 is controlled to be closed, the air exhaust device 3 is controlled to be opened after the preset duration, and the process is repeated.
The following description will be made with the low pressure control device as a pressure switch and the preset low pressure threshold value as P1. And in the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped out of the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, the accumulated time has two times t and tp, the system controls the valve 5 to stop working, the valve 5 is closed, the closed environment in the cooker is kept, and the air exhaust device 3 stops working at the same time. When t is t1, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and negative pressure is extracted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and the air extractor 3 stops working at the same time. When t is t2, the system controls the valve 5 to work, the valve 5 is opened, the air extractor 3 works, and negative pressure is extracted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Example ten:
the difference from the sixth embodiment is that, preferably, the cooking appliance 100 further comprises a low pressure control device and a high pressure control device which are arranged on the cooking appliance main body and are used for detecting the pressure in the cooking cavity 6, and the control unit 202 is used for: controlling the air extractor 3 to be opened and detecting the pressure in the cooking cavity 6; when the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device, and maintaining the air extraction device 3 to continue to operate; when the pressure in the cooking cavity 6 reaches a preset low-pressure threshold value, receiving a signal sent by a low-pressure control device, and controlling the air extraction device 3 to be closed; when the pressure in the cooking cavity 6 reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device and controlling the air extraction device 3 to be opened; and returning to receive a signal sent by the low-pressure control device when the pressure in the cooking cavity 6 reaches a preset low-pressure threshold value, and controlling the air extraction device 3 to be closed, and circulating the steps, wherein the preset low-pressure threshold value and the preset high-pressure threshold value are negative pressure, and the absolute value of the preset low-pressure threshold value is greater than that of the preset high-pressure threshold value.
The low-pressure control device and the high-pressure control device are both pressure switches. And in the heat preservation stage, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and negative pressure is pumped out of the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P1, the pressure switch is triggered, the pressure switch sends a signal, the system starts to count time, two tp times are accumulated, and meanwhile, the air extraction device 3 continues to work to extract negative pressure to the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P2, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working. Because the negative pressure of the cooking cavity 6 is gradually reduced due to the self air leakage of the pressure cooker and the evaporation of water in the cooker, when the pressure of the cooking cavity 6 is reduced and the negative pressure is smaller than P1, the pressure switch is triggered, the pressure switch sends a signal, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, and the negative pressure is exhausted from the cooking cavity 6. When the pressure in the cooking cavity 6 reaches P2, the pressure switch is triggered to send out a signal, the system control valve 5 stops working, the valve 5 is closed, the closed environment in the cooker is kept, and meanwhile, the air extracting device 3 stops working, so that the circulation is realized. In addition, when T is less than or equal to the heat preservation upper limit temperature T2, the temperature controller continues to detect the internal temperature T of the cooking cavity 6. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. And when the temperature T is more than or equal to the heat preservation upper limit temperature T2, the heating device 12 stops working. When T is less than or equal to the heat preservation lower limit temperature T3, the heating device 12 starts to work and continues to heat the inner pot. Thus circulating. When tz0, the electric pressure cooker stops working, and the heat preservation and fresh-keeping procedure is completed.
Preferably, the low pressure detection device is a first pressure switch, the high pressure detection device is a second pressure switch, or the low pressure detection device and the high pressure detection device are the same pressure switch.
An aspect of the third aspect of the present invention provides a cooking appliance 100, including a processor, configured to implement the steps of the control method of the cooking appliance 100 according to any one of the above aspects when the processor executes 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 aspect of the 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 one of the above-mentioned aspects. 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, according to the control method of the cooking apparatus 100 provided by the embodiment of the present invention, after the pressure cooker finishes the high-temperature high-pressure cooking, the pressure cooker is subjected to a heat preservation and fresh-keeping treatment (i.e. a heat preservation stage) to maintain the freshness of the food and a proper eating temperature. In the heat preservation and fresh keeping stage, air in the cooking cavity 6 is pumped out, so that the cooking cavity 6 is in a negative pressure state, specifically, the pressure can be controlled by the negative pressure pumping time and the natural pressure relief time of the air pumping device 3, and the pressure can be controlled by a pressure switch or the combination of the pressure switch and the time or by two pressure switches or pressure sensors.
The operation of pumping negative pressure through setting up air exhaust device 3 can be used for reservation stage, culinary art stage or the stage of pickling except being used for heat preservation stage or heat preservation fresh-keeping stage.
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 unless otherwise stated or indicated, and for example, "connected" may be 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 by those skilled in the art according to specific situations.
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 those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit 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 herein, the description of the terms "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 (5)
1. A method for controlling a cooking appliance, the cooking appliance comprising a cooking appliance body and a gas extraction device arranged on the cooking appliance body, the cooking appliance body defining a cooking cavity, the gas extraction device being used for extracting gas in the cooking cavity, the method for controlling the cooking appliance comprising:
controlling the opening of an exhaust valve;
detecting the temperature in the cooking cavity, or detecting the pressure in the cooking cavity, or recording the duration of the exhaust valve in an opening state;
judging whether the temperature in the cooking cavity reaches a preset heat preservation temperature or not, or judging whether the pressure in the cooking cavity reaches a preset heat preservation pressure or not, or judging whether the duration of the exhaust valve in the opening state reaches a third preset duration or not;
if yes, controlling the exhaust valve to close;
in the heat preservation stage, the air exhaust device is controlled to be started and is controlled to work intermittently;
cooking utensil is still including setting up high-pressure controlling means in the cooking utensil main part is used for detecting the pressure in the culinary art intracavity, the heat preservation stage, control air exhaust device opens, and control air exhaust device intermittent type work specifically includes:
controlling the air exhaust device to be started, and detecting the pressure in the cooking cavity;
when the pressure in the cooking cavity reaches a preset high-pressure threshold value, receiving a signal sent by the high-pressure control device, and maintaining the air extracting device to continuously operate for a first preset time;
controlling the air exhaust device to be closed, receiving a signal sent by the high-pressure control device when the pressure in the cooking cavity reaches the preset high-pressure threshold, controlling the air exhaust device to be opened and run for a second preset time, and circulating the steps;
in the heat preservation stage, when the temperature in the cooking cavity is less than or equal to the heat preservation lower limit temperature, the heating device starts to work and continues to heat the inner pot, and when the temperature in the cooking cavity is greater than or equal to the heat preservation upper limit temperature, the heating device stops working.
2. The control method of a cooking appliance according to claim 1,
the range of the first preset duration is 60-180 s; and/or the range of the second preset time is 120 s-600 s.
3. A control device of a cooking appliance, wherein the cooking appliance comprises a cooking appliance main body and an air extracting device arranged on the cooking appliance main body, the cooking appliance main body defines a cooking cavity, the air extracting device is used for extracting gas in the cooking cavity, and the control device of the cooking appliance is used for executing the control method of the cooking appliance according to claim 1 or 2.
4. A cooking appliance comprising a processor for implementing the steps of a method of controlling a cooking appliance as claimed in claim 1 or 2 when executing a computer program stored in a memory.
5. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when being executed by a processor, realizes the steps of the method of controlling a cooking appliance as set forth in claim 1 or 2.
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| CN113545682A (en) * | 2020-04-26 | 2021-10-26 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device of cooking equipment, cooking equipment and computer storage medium |
| CN113693430B (en) * | 2020-05-21 | 2022-08-09 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method, computer device, readable storage medium and cooking device |
| CN114052472A (en) * | 2020-08-03 | 2022-02-18 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, heat preservation and fresh keeping control method thereof and computer readable storage medium |
| CN114073393B (en) * | 2020-08-19 | 2023-06-02 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, fresh-keeping control method thereof and computer readable storage medium |
| CN114190754A (en) * | 2020-09-02 | 2022-03-18 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and heat preservation control method and heat preservation control device thereof |
| CN114831494A (en) * | 2021-01-31 | 2022-08-02 | 云米互联科技(广东)有限公司 | Intelligent food protection method based on food eating value and intelligent food protection cooking equipment thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551608A (en) * | 2015-09-25 | 2017-04-05 | 佛山市顺德区美的电热电器制造有限公司 | The thermal-insulation control method of cooking apparatus |
| CN107752721A (en) * | 2017-07-18 | 2018-03-06 | 浙江苏泊尔家电制造有限公司 | Cooking apparatus and the control method for cooking apparatus |
Family Cites Families (3)
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|---|---|---|---|---|
| JP4329126B2 (en) * | 2006-02-08 | 2009-09-09 | 東芝ホームテクノ株式会社 | rice cooker |
| KR100781674B1 (en) * | 2007-04-06 | 2007-12-03 | 주식회사 노비타 | Electric pressure rice cooker and control method thereof |
| CN204105689U (en) * | 2014-07-16 | 2015-01-21 | 浙江苏泊尔家电制造有限公司 | Electric cooker |
-
2018
- 2018-05-21 CN CN201810490305.3A patent/CN110507172B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551608A (en) * | 2015-09-25 | 2017-04-05 | 佛山市顺德区美的电热电器制造有限公司 | The thermal-insulation control method of cooking apparatus |
| CN107752721A (en) * | 2017-07-18 | 2018-03-06 | 浙江苏泊尔家电制造有限公司 | Cooking apparatus and the control method for cooking apparatus |
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