CN110353497B - Cooking appliance and control method thereof - Google Patents

Cooking appliance and control method thereof Download PDF

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Publication number
CN110353497B
CN110353497B CN201810310559.2A CN201810310559A CN110353497B CN 110353497 B CN110353497 B CN 110353497B CN 201810310559 A CN201810310559 A CN 201810310559A CN 110353497 B CN110353497 B CN 110353497B
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cooking
cooking cavity
water
pressure
air
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CN110353497A (en
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罗飞龙
刘化勇
何国达
瞿月红
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Priority to CN201810310559.2A priority Critical patent/CN110353497B/en
Priority to KR1020197035641A priority patent/KR102291813B1/en
Priority to JP2020515817A priority patent/JP6906693B2/en
Priority to PCT/CN2018/089952 priority patent/WO2019001230A1/en
Publication of CN110353497A publication Critical patent/CN110353497A/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/0802Control mechanisms for pressure-cookers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means

Abstract

The invention discloses a cooking appliance and a control method thereof, and the cooking appliance comprises the following steps: in the water absorption stage, controlling a heating device to heat rice water in the cooking cavity to a preset temperature; acquiring the current rice water volume in the cooking cavity, and acquiring the air extraction time of the air extraction device when the pressure in the cooking cavity reaches a first preset pressure according to the current rice water volume; controlling an air extractor to extract air from the cooking cavity and starting timing; when the timing time reaches the air extraction time, stopping extracting air from the cooking cavity so as to maintain the pressure in the cooking cavity at the first preset pressure. According to the control method of the cooking appliance, the cooking appliance can control the air extraction time of the air extraction device according to different rice water quantities in the cooking cavity by adopting the control method, so that the pressure in the cooking cavity can reach the first preset pressure no matter how much rice water exists in the cooking cavity, and the control is accurate; and, can also improve the water absorption efficiency of the grain of rice to improve cooking utensil's cooking efficiency.

Description

Cooking appliance and control method thereof
Technical Field
The invention relates to the technical field of cooking equipment, in particular to a cooking appliance and a control method thereof.
Background
In the existing electric cooker technology with a pressure reducing device, the detection of the vacuum degree in the electric cooker is generally realized mainly by a pressure sensor. However, since the pressure sensor is an electronic component, the installation of the pressure sensor in the upper cover of the high-temperature and high-humidity rice cooker greatly reduces the service life of the electronic component, and the high-temperature resistant pressure sensor is expensive and has no market competitiveness.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method of a cooking appliance, which can realize accurate control of the air extraction time of an air extraction device and ensure that the preset pressure can be reached no matter how much water exists in a cooking cavity.
The invention also provides a cooking appliance adopting the control method.
According to the first aspect of the invention, the cooking appliance comprises a pot body, a cover body, a heating device and an air extracting device, the pot body is provided with a cooking cavity with an open top, the cover body is movably mounted on the pot body, the air extracting device is used for extracting air from the cooking cavity when the cooking cavity is closed so as to form negative pressure in the cooking cavity, a cooking procedure of the cooking appliance at least comprises a water absorbing stage, and the control method comprises the following steps: in the water absorption stage, controlling the heating device to heat rice water in the cooking cavity to a preset temperature; acquiring the current rice water volume in the cooking cavity, and acquiring the air extraction time of the air extraction device when the pressure in the cooking cavity reaches a first preset pressure according to the current rice water volume; controlling the air extractor to extract air from the cooking cavity and starting timing; and when the timing time reaches the air exhaust time, stopping exhausting the cooking cavity so as to maintain the pressure in the cooking cavity at the first preset pressure.
According to the control method of the cooking appliance, the cooking appliance can control the air extraction time of the air extraction device according to different rice water quantities in the cooking cavity by adopting the control method, so that the pressure in the cooking cavity can reach the first preset pressure no matter how much rice water exists in the cooking cavity, and the control is accurate; and, air exhaust device is before bleeding, and heating device heats the rice water of culinary art intracavity to predetermineeing the temperature, not only can guarantee the effect of absorbing water of grain of rice, improves the efficiency of absorbing water of grain of rice to promote cooking utensil's culinary art effect, can also do benefit to and subtract the time in the stage of absorbing water of shortening, thereby improve cooking utensil's culinary art efficiency.
According to one embodiment of the invention, the working time of the heating device when the rice water in the cooking cavity is heated to the preset temperature is recorded, and the current amount of the rice water in the cooking cavity is obtained according to the working time of the heating device.
In some examples, the operating time of the heating device is positively correlated with the current amount of rice water.
In some specific examples, the current amount of rice water in the cooking cavity is calculated according to the following formula: the heating device comprises a heating device, a water storage device, a heating device and a controller, wherein m is the mass of water, P is the heating power of the cooking device, eta is the energy efficiency coefficient of the cooking device, T is the working time of the heating device, c is the specific heat capacity coefficient of the water, and Delta T is the temperature rise of the water.
In some examples, the preset temperature is 35 ℃ to 50 ℃.
According to another embodiment of the invention, a gravity sensor or a displacement sensor is arranged in the pot body and used for acquiring the current amount of rice water in the cooking cavity; or the cooking appliance is provided with an input device, and the user inputs the current rice water amount in the cooking cavity through the input device.
Optionally, the cooking cavity has a first water level line, a second water level line … … nth water level line, the first water level line corresponds will form in the cooking cavity when first preset pressure the air extraction time of air extraction device is t1, the second water level line corresponds will form in the cooking cavity when first preset pressure the air extraction time of air extraction device is t2 … …, the nth water level line corresponds will form in the cooking cavity when first preset pressure the air extraction time of air extraction device is tn, wherein n < 10.
According to a further embodiment of the present invention, the cooking process further comprises: the control method comprises a heating boiling stage, a stewing stage and a heat preservation stage, and further comprises the following steps: in the heat preservation stage, the air exhaust device is controlled to exhaust the cooking cavity; when the pressure in the cooking cavity is maintained at the second preset pressure, stopping pumping the cooking cavity to maintain the pressure in the cooking cavity at the second preset pressure.
Optionally, the first preset pressure is equal to the second preset pressure; or the air exhaust time of the air exhaust device in the water absorption stage is equal to that in the heat preservation stage.
According to the cooking appliance of the second aspect of the invention, the control method of the cooking appliance described in the above embodiments is adopted.
The cooking appliance provided by the embodiment of the invention has a simple and compact structure, can control the air extraction time of the air extraction device according to different rice water quantities in the cooking cavity, ensures that the pressure in the cooking cavity can reach the first preset pressure no matter how much rice water exists in the cooking cavity, and is accurately controlled.
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 structural view of a cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an inner pan of a cooking appliance according to an embodiment of the present invention;
fig. 3 is a graph of an operation of a cooking appliance according to an embodiment of the present invention;
fig. 4 is a flowchart of the operation of the cooking appliance according to the embodiment of the present invention;
fig. 5 is an operational principle diagram of a cooking appliance according to an embodiment of the present invention.
Reference numerals:
cooking utensil 100, water line L (L1, L2 … … Ln),
the cooking pot comprises a pot body 10, an inner pot 11, a cooking cavity 12, a cover body 20, a heating device 30, an air extracting device 40, a control device 50 and a power supply device 60.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A cooking appliance and a control method thereof according to an embodiment of the present invention will be described with reference to fig. 1 to 5.
As shown in fig. 1 and 2, a cooking appliance 100 according to an embodiment of the present invention includes a pot 10, a cover 20, a heating device 30, and a suction device 40, the pot 10 has an open-top cooking cavity 12, the cover 20 is movably mounted to the pot 10, and the suction device 40 is used for sucking air from the cooking cavity 12 when the cooking cavity 12 is closed to form a negative pressure in the cooking cavity 12.
As shown in fig. 3 to 5, the cooking program of the cooking appliance 100 includes at least a water absorption stage, and the control method of the cooking appliance includes the steps of:
s1, in the water absorption stage, controlling the heating device to heat rice water in the cooking cavity to a preset temperature;
s2, acquiring the current rice water volume in the cooking cavity, and acquiring the air extraction time of the air extraction device when the pressure in the cooking cavity reaches a first preset pressure according to the current rice water volume;
s3, controlling the air extractor to extract air from the cooking cavity and starting timing;
and S4, stopping exhausting the cooking cavity when the timing time reaches the exhausting time so as to maintain the pressure in the cooking cavity at the first preset pressure.
According to the control method of the cooking appliance, the cooking appliance can control the air extraction time of the air extraction device according to different rice water quantities in the cooking cavity by adopting the control method, so that the pressure in the cooking cavity can reach the first preset pressure no matter how much rice water exists in the cooking cavity, and the control is accurate; and, air exhaust device is before bleeding, and heating device heats the rice water of culinary art intracavity to predetermineeing the temperature, not only can guarantee the effect of absorbing water of grain of rice, improves the efficiency of absorbing water of grain of rice to promote cooking utensil's culinary art effect, can also do benefit to and subtract the time in the stage of absorbing water of shortening, thereby improve cooking utensil's culinary art efficiency.
According to one embodiment of the invention, when the heating device is controlled to heat rice water in the cooking cavity to the preset temperature, the working time of the heating device is recorded, namely the working time of the heating device when the rice water in the cooking cavity is heated to the preset temperature is recorded, and the current rice water amount in the cooking cavity is obtained according to the working time of the heating device when the rice water in the cooking cavity is heated to the preset temperature in the water absorption stage.
That is to say, in the stage of absorbing water, at first heat the rice water in the culinary art intracavity, utilize the time that will heat water to preset temperature and judge the rice water yield in the culinary art intracavity, again according to the rice water yield accurate control air exhaust device's of culinary art intracavity operating time who obtains, no matter how much rice water in the culinary art intracavity, all can make the pressure in the culinary art intracavity reach first preset pressure.
In some examples, the preset temperature is 35 ℃ to 50 ℃, for example, the preset temperature is 35 ℃, in the water absorption phase, the heating device is controlled to heat the rice water in the cooking cavity firstly, and timing is started, when the rice water in the cooking cavity is heated to 35 ℃, the heating device stops heating, so that the working time of the heating device when the rice water in the cooking cavity is heated to 35 ℃ in the water absorption phase is obtained. For example, the preset temperature may be 40 deg.C, 45 deg.C, or 45 deg.C.
Preferably, the preset temperature is 40-45 ℃, and the preset temperature is set to 40-45 ℃, so that the water absorption effect of the rice grains at the temperature can be ensured, the water absorption rate of the rice grains is improved, the cooking effect of the cooking appliance is improved, fragrant rice is cooked, the time of the water absorption stage is shortened, the cooking efficiency of the cooking appliance is improved, and the user experience is improved.
It can be understood that the more the amount of rice water in the cooking cavity, the longer the operating time of the heating device when the rice water in the cooking cavity is heated to the preset temperature, i.e. the operating time of the heating device is in positive correlation with the current amount of rice water.
In some specific examples, the current amount of rice water in the cooking cavity is calculated according to the following formula: and m is the mass of water, P is the heating power of the cooking appliance, eta is the energy efficiency coefficient of the cooking appliance, T is the working time of the heating device, c is the specific heat capacity coefficient of water, and Delta T is the temperature rise of the water.
From this, adopt the rice water heating of culinary art intracavity to heating device's operating time when presetting the temperature to calculate according to above-mentioned formula and obtain the rice water yield of culinary art intracavity, then according to the air exhaust time of the different rice water yield control air exhaust device of culinary art intracavity, guarantee that no matter how much rice water in the culinary art intracavity, all can make the pressure in the culinary art intracavity reach first preset pressure, control accuracy.
According to another embodiment of the invention, a gravity sensor is arranged in the pot body and used for acquiring the current amount of rice water in the cooking cavity. Through setting up gravity sensor, can acquire the current rice water yield of culinary art intracavity according to gravity sensor's measuring result, and then according to the air exhaust time of the different rice water yields accurate control air exhaust device of culinary art intracavity, no matter how many rice water in the assurance culinary art intracavity, all can make the pressure of culinary art intracavity reach first preset pressure.
According to another embodiment of the invention, a displacement sensor is arranged in the pot body and used for acquiring the current amount of rice water in the cooking cavity. Through setting up displacement sensor, can acquire the current rice water yield of culinary art intracavity according to displacement sensor's measuring result, and then according to the air exhaust time of the different rice water yields accurate control air exhaust device of culinary art intracavity, no matter how many rice water in the assurance culinary art intracavity, all can make the pressure of culinary art intracavity reach first preset pressure.
According to still another embodiment of the present invention, the cooking appliance has a rice water amount input means through which a user inputs a current amount of rice water in the cooking cavity.
For example, when a user boils 2 cups of rice, water can be added into the cooking cavity to a corresponding water level line, after the cover body is closed, the amount of rice water in the cooking cavity is input through the input device (for example, the current water level line or the amount of rice put into the cooking cavity can be input), then a cooking program is selected, the cooking appliance starts to cook, the control program of the cooking appliance is simple, and the cost is reduced.
Optionally, the cooking cavity has a first water level line and a second water level line … …, the pumping time of the pumping device when the first water level line corresponds to the first preset pressure in the cooking cavity is t1, the pumping time of the pumping device when the second water level line corresponds to the first preset pressure in the cooking cavity is t2 … …, and the pumping time of the pumping device when the first preset pressure in the cooking cavity corresponds to the n-th water level line is tn, where n is less than 10.
Specifically, when the cooking appliance is manufactured, a large amount of experimental data is needed to obtain the time t required by a certain type of air extractor to form a first preset pressure (the set vacuum degree P1) in the cooking cavity when the inner pot with a rated capacity has rice water quantities with different scales.
It should be noted that the first preset pressure may be a single pressure value, or may be a plurality of different pressure values. During manufacturing, the time t required by different pressure values formed in the cooking cavity when the air extractor of a certain type has rice water quantities with different scales in an inner pot with rated capacity can be obtained through a large amount of experimental data.
For example, as shown in fig. 4, when the rice water level of the inner pot is at the first water level, the air extractor is controlled to extract air from the cooking cavity, and timing is performed, when the pressure in the cooking cavity isWhen the first preset pressure is reached, the air exhaust time of the air exhaust device is recorded as t1(ii) a When the rice water level line of the inner pot is at the second water level line, the air exhaust device is controlled to exhaust air in the cooking cavity, timing is carried out, and when the pressure in the cooking cavity reaches the first preset pressure, the air exhaust time of the air exhaust device is recorded as t2(ii) a When the rice water level line of the inner pot is at the nth water level line, the air exhaust device is controlled to exhaust air in the cooking cavity, timing is carried out, and when the pressure in the cooking cavity reaches a first preset pressure, the air exhaust time of the air exhaust device is recorded as tn
Therefore, the cooking procedure is compiled according to the air extraction time of the air extraction device corresponding to different rice water quantities, so that the cooking appliance can accurately control the air extraction time of the air extraction device according to different rice water quantities in the cooking cavity, and the pressure in the cooking cavity can reach the first preset pressure no matter how much rice water exists in the cooking cavity.
As shown in fig. 3, according to a further embodiment of the present invention, the cooking process of the cooking appliance further includes: the control method comprises a heating boiling stage, a stewing stage and a heat preservation stage, and further comprises the following steps: in the heat preservation stage, the air exhaust device is controlled to exhaust air from the cooking cavity; when the pressure in the cooking cavity is maintained at the second preset pressure, stopping pumping air to the cooking cavity so as to maintain the pressure in the cooking cavity at the second preset pressure.
Specifically, in the cooking procedure of the cooking appliance, in the heating boiling stage and the stewing stage, the air pressure in the cooking cavity is controlled to be maintained at an atmospheric pressure, in the heat preservation stage, when the temperature in the cooking cavity is reduced to a preset heat preservation temperature, the air exhaust device is controlled to exhaust air in the cooking cavity, and when the pressure in the cooking cavity is reduced to a second preset pressure, the air exhaust device is controlled to stop exhausting air, so that the pressure in the cooking cavity is maintained at the second preset pressure (negative pressure state), and the heat preservation effect is realized.
In some alternative examples, the first preset pressure is equal to the second preset pressure.
That is to say, cooking utensil is in the stage of absorbing water, and control air exhaust device takes out the atmospheric pressure in the culinary art intracavity into first preset pressure from ordinary pressure state (an atmospheric pressure) to make the culinary art intracavity form the negative pressure state, make the culinary art intracavity reach the environment that is most suitable for the rice grain to absorb water, and then improve the water absorption efficiency of rice grain, not only can guarantee the water content of rice grain, in order to guarantee the quality of cooked rice, can shorten the time that rice boiled in addition, improve electric rice cooker's culinary art efficiency.
In the heat preservation stage, control air exhaust device work to detect the atmospheric pressure value in the culinary art intracavity, when the atmospheric pressure in the culinary art intracavity dropped to first preset pressure, control air exhaust device stop work, thereby make the pressure in the culinary art intracavity maintain at first preset pressure, realize cooking utensil's heat preservation effect.
In other alternative examples, the air exhausting device has the same air exhausting time in the water absorbing stage and the heat preserving stage. Specifically, in the heat preservation stage, the air extractor is controlled to work, timing is started, when the air extraction time of the air extractor in the heat preservation stage is detected to reach the air extraction time in the water absorption stage, the air pressure in the cooking cavity is the second preset pressure, and the air extractor is controlled to stop working, so that the pressure in the cooking cavity is maintained at the second preset pressure.
The cooking appliance 100 according to the embodiment of the present invention employs the control method of the cooking appliance described in the above embodiment. The cooking appliance can be an electric cooker, an electric pressure cooker and the like.
Cooking utensil 100 includes pot 10, lid 20, heating device 30 and air exhaust device 40, and pot 10 has open cooking chamber 12 in top, and lid 20 movably installs to pot 10, and air exhaust device 40 is used for bleeding cooking chamber 12 when cooking chamber 12 is airtight so that form the negative pressure in cooking chamber 12.
Because the control method of the cooking appliance has the technical effects, the cooking appliance 100 according to the embodiment of the invention also has the technical effects that the structure of the cooking appliance is simple and compact, the air extraction time of the air extraction device can be controlled according to different water amounts of rice in the cooking cavity, the pressure in the cooking cavity can reach the first preset pressure no matter how much water is in the cooking cavity, and the control is accurate.
An embodiment of a cooking appliance 100 according to the present invention is described in detail below with reference to fig. 1-5 by taking an electric cooker as an example.
As shown in fig. 1-5, the electric cooker according to the embodiment of the present invention includes a cooker body 10, a cover 20, a heating device 30, an air extracting device 40, a control device 50, and a power supply device 60. Wherein the air extracting device 40 may be a vacuum pump.
An inner pot 11 for bearing food is arranged in the pot body 10, and a heating device 30 is arranged in the pot body 10 and below the inner pot 11 for heating the inner pot 11. The power supply device 60 is disposed in the pot body 10, the cover body 20 is movably mounted to the pot body 10, the cover body 20 has the air extracting device 40 and the control device 50 therein, the control device 50 and the heating device 30 are both connected to the power supply device 60, and the power supply device 60 is used for supplying power to the air extracting device 40 and the heating device 30. The air extractor 40 is used for changing the air pressure in the inner pot 11 in the sealed state into a negative pressure state, and the control device 50 is used for controlling the electric cooker to select different cooking programs.
In order to satisfy different rice water volumes in the interior pot and all can pump the culinary art chamber to predetermineeing vacuum degree (for example, first preset pressure), specific embodiment is as follows:
firstly, the time t required for a vacuum pump of a certain type to form a first preset pressure (set vacuum degree P1) when an inner pot of a rated capacity has rice water quantities with different scales is obtained through a large amount of experimental data, and is shown as the following table:
Figure BDA0001622200380000071
secondly, according to the heating formula for water: and (m is the mass of water, P is the heating power of the electric cooker, eta is the energy efficiency coefficient of the electric cooker, T is the working time of the heating device, c is the specific heat capacity coefficient of the water, and Delta T is the temperature rise of the water), and the working time T of the heating device is calculated when the rice water with different masses is heated to the preset temperature by the rated power. The judgment method for obtaining different rice water quantities through a large amount of use data comprises the following steps:
Figure BDA0001622200380000081
specifically, if the user boils 2 cups of rice, the water level of the inner pot corresponds to the second water level line, after the rice cooking program is selected, the rice cooking program firstly controls the heating device to heat the rice to a set temperature, the time t required when the preset temperature is reached is recorded, then the working time of the vacuum pump corresponding to the second water level line is selected according to the rice cooking program to carry out vacuumizing, and therefore the control that different water level lines correspond to different air-extracting times to reach the accurate vacuum degree can be set.
Other constructions and operations of the cooking appliance 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A method for controlling a cooking appliance, the cooking appliance comprising a pot, a cover, a heating device and an air extractor, the pot having a cooking cavity with an open top, the cover being movably mounted to the pot, the air extractor being configured to extract air from the cooking cavity when the cooking cavity is closed so as to form a negative pressure in the cooking cavity, a cooking procedure of the cooking appliance at least including a water absorption stage, the method comprising the steps of:
in the water absorption stage, controlling the heating device to heat rice water in the cooking cavity to a preset temperature;
acquiring the current rice water volume in the cooking cavity, and acquiring the air extraction time of the air extraction device when the pressure in the cooking cavity reaches a first preset pressure according to the current rice water volume;
controlling the air extractor to extract air from the cooking cavity and starting timing;
and when the timing time reaches the air exhaust time, stopping exhausting the cooking cavity so as to maintain the pressure in the cooking cavity at the first preset pressure.
2. The method for controlling a cooking appliance according to claim 1, wherein the operating time of the heating device when the rice water in the cooking cavity is heated to the preset temperature is recorded, and the current amount of the rice water in the cooking cavity is obtained according to the operating time of the heating device.
3. The method of claim 2, wherein the operation time of the heating device is positively correlated to the current amount of rice water.
4. The method of controlling a cooking appliance according to claim 2, wherein the current amount of rice water in the cooking cavity is calculated according to the following formula: the heating device comprises a heating device, a water storage device, a heating device and a controller, wherein m is the mass of water, P is the heating power of the cooking device, eta is the energy efficiency coefficient of the cooking device, T is the working time of the heating device, c is the specific heat capacity coefficient of the water, and Delta T is the temperature rise of the water.
5. The method for controlling a cooking appliance according to claim 2, wherein the preset temperature is 35 ℃ to 50 ℃.
6. The control method of the cooking appliance according to claim 1, wherein a gravity sensor or a displacement sensor is arranged in the pot body and used for acquiring the current amount of rice water in the cooking cavity; or the cooking appliance is provided with an input device, and the user inputs the current rice water amount in the cooking cavity through the input device.
7. The method of controlling a cooking appliance according to any one of claims 1 to 6, wherein the cooking chamber has a first water level line, a second water level line … … nth water level line,
the air exhaust time of the air exhaust device is t when the first preset pressure is formed in the cooking cavity corresponding to the first water level line1The air exhaust time of the air exhaust device when the first preset pressure is formed in the cooking cavity corresponding to the second water level line is t2… …, the suction time of the suction device when the first preset pressure is formed in the cooking cavity corresponding to the nth water level line is tnWherein n is less than 10.
8. The method of controlling a cooking appliance according to any one of claims 1 to 6, wherein the rice cooking process further comprises: the control method comprises a heating boiling stage, a stewing stage and a heat preservation stage, and further comprises the following steps:
in the heat preservation stage, the air exhaust device is controlled to exhaust the cooking cavity;
when the pressure in the cooking cavity is maintained at a second preset pressure, stopping pumping air into the cooking cavity so as to maintain the pressure in the cooking cavity at the second preset pressure.
9. The method of claim 8, wherein the first preset pressure is equal to the second preset pressure; or the air exhaust time of the air exhaust device in the water absorption stage is equal to that in the heat preservation stage.
10. A cooking appliance, characterized in that a control method of the cooking appliance according to any one of claims 1 to 9 is employed.
CN201810310559.2A 2017-06-29 2018-04-09 Cooking appliance and control method thereof Active CN110353497B (en)

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Application Number Priority Date Filing Date Title
CN201810310559.2A CN110353497B (en) 2018-04-09 2018-04-09 Cooking appliance and control method thereof
KR1020197035641A KR102291813B1 (en) 2017-06-29 2018-06-05 Cooking utensil and its control method
JP2020515817A JP6906693B2 (en) 2017-06-29 2018-06-05 Cookware and its control method
PCT/CN2018/089952 WO2019001230A1 (en) 2017-06-29 2018-06-05 Cooking appliance and control method thereof

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Application Number Priority Date Filing Date Title
CN201810310559.2A CN110353497B (en) 2018-04-09 2018-04-09 Cooking appliance and control method thereof

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CN110353497A CN110353497A (en) 2019-10-22
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US20210121012A1 (en) 2020-03-30 2021-04-29 Sharkninja Operating Llc Cooking device and components thereof
CN111493674B (en) * 2020-04-29 2021-10-26 珠海格力电器股份有限公司 Cooking appliance control method and cooking appliance
CN114504236B (en) * 2020-11-16 2023-12-05 浙江苏泊尔家电制造有限公司 Cooking method, cooking appliance, and computer-readable storage medium
CN114504237A (en) * 2020-11-16 2022-05-17 浙江苏泊尔家电制造有限公司 Cooking method, cooking appliance, and computer-readable storage medium
CN112631142A (en) * 2020-12-31 2021-04-09 珠海格力电器股份有限公司 Electric cooker, and control method and control device thereof
CN114631737B (en) * 2022-05-07 2022-07-15 九阳股份有限公司 Control method for cooking rice by cooking appliance and cooking appliance

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