CN110870680B - Cooking appliance control method and cooking appliance - Google Patents
Cooking appliance control method and cooking appliance Download PDFInfo
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- CN110870680B CN110870680B CN201811012296.3A CN201811012296A CN110870680B CN 110870680 B CN110870680 B CN 110870680B CN 201811012296 A CN201811012296 A CN 201811012296A CN 110870680 B CN110870680 B CN 110870680B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/56—Preventing boiling over, e.g. of milk
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- Food Science & Technology (AREA)
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Abstract
The invention discloses a cooking appliance and a control method thereof. The cooking utensil comprises an inner pot, a heating device for heating the inner pot, a pot body for bearing the inner pot, an air suction opening and a pressure relief hole, and the control method of the cooking utensil comprises the following steps: in the cooking mode, when food boils, detecting an overflow signal; and if an overflow signal is detected, opening the air suction opening to suck vacuum to the inner pot, and controlling the pressure relief hole to be closed to stop relieving pressure to the inner pot. The control method of the cooking utensil can effectively prevent bubbles and food residues from overflowing and avoid the food residues from blocking the air suction opening and the pressure relief hole.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a cooking appliance and a control method thereof.
Background
Under the culinary art mode, the cooking utensil of negative pressure low temperature boiling reduces under the negative pressure effect boiling, and the boiling can be more violent than conventional cooking utensil, and the bubble that the boiling produced carries food waste and blocks up with the extraction opening and the pressure release hole of extraction vacuum easily in culinary art process, not only is unfavorable for the extraction vacuum, and the pressure release hole still can produce the malleation when blockking up moreover, has the risk of unusually uncapping, influences cooking utensil's use and experiences and there is the potential safety hazard.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, a first object of the present invention is to propose a control method of a cooking appliance. The method can effectively prevent the overflow of air bubbles and food residues and avoid the blockage of the air suction port and the pressure relief hole by the food residues.
A second object of the present invention is to provide a cooking appliance.
A third object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention discloses a control method of a cooking appliance, where the cooking appliance includes an inner pot, a heating device for heating the inner pot, a pot body for carrying the inner pot, an air suction opening, and a pressure relief opening, the method includes: in the cooking mode, when food boils, detecting an overflow signal; and if an overflow signal is detected, opening the air suction opening to suck vacuum to the inner pot, and controlling the pressure relief hole to be closed to stop relieving pressure to the inner pot.
According to the control method of the cooking utensil provided by the embodiment of the invention, the purposes of normal pressure boiling and micro negative pressure bubble breaking and overflow prevention are realized by controlling the opening and closing of the air suction opening and the pressure relief hole in the boiling and the pre-boiling stage, the bubble breaking purpose can be achieved under the action of micro negative pressure, the boiling point can not be reduced due to overlarge negative pressure, the overflow of bubbles and food residues can be effectively prevented, and the blockage of the air suction opening and the pressure relief hole by the food residues is avoided.
In some examples, further comprising: judging whether the overflow signal disappears or not; if the overflow signal disappears, the air pumping hole is closed to stop pumping vacuum to the inner pot, and the pressure relief hole is controlled to be opened to relieve pressure to the inner pot
In some examples, further comprising: before the food is boiled, the air pumping port is closed to stop pumping vacuum to the inner pot; and before the inner pot gradually becomes a normal pressure state, when the air pressure of the inner pot reaches a first preset pressure, the pressure relief hole is controlled to be opened so as to relieve the pressure of the inner pot.
In some examples, if the overflow signal is detected, the opening of the suction opening to draw vacuum to the inner pot and the closing of the pressure relief hole to stop the pressure relief to the inner pot comprise: controlling the pressure relief hole to be closed to stop the pressure relief of the inner pot; and opening the air suction port to draw vacuum on the inner pot until the air pressure of the inner pot reaches a second preset pressure.
In some examples, if the overflow signal disappears, the air suction port is closed to stop vacuum suction to the inner pot, and the pressure relief hole is controlled to be opened to relieve pressure to the inner pot, including: delaying for a predetermined time after the overflow signal disappears; and after the preset time is delayed, closing the air suction port to stop vacuum suction of the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the air pressure of the inner pot from the second preset pressure to the first preset pressure.
In some examples, the predetermined time is 0-30 seconds and the first predetermined pressure is 0-20 Kpa.
Embodiments of a second aspect of the invention disclose a cooking appliance comprising: the inner pot and a heating device for heating the inner pot; the pot body is used for bearing the inner pot; the pot cover is connected with the pot body and is used for sealing the inner pot or the pot body; the inner pot is provided with an air suction hole for sucking vacuum to the inner pot and a pressure relief hole for relieving pressure to the inner pot; and the controller is used for detecting an overflow signal when food boils in a cooking mode, opening the air suction opening to vacuumize the inner pot if the overflow signal is detected, and controlling the pressure relief hole to be closed to stop relieving pressure of the inner pot.
According to the cooking utensil provided by the embodiment of the invention, the purposes of normal pressure boiling and micro negative pressure bubble breaking and overflow prevention are realized by controlling the opening and closing of the air suction opening and the pressure relief hole in the boiling and pre-boiling stages, the bubble breaking purpose can be achieved under the action of micro negative pressure, the boiling point can not be reduced due to overlarge negative pressure, bubbles and food residues can be effectively prevented from overflowing, the blockage of the air suction opening and the pressure relief hole by the food residues is avoided, and the quality of the cooking utensil is improved.
In some examples, the controller is further configured to determine whether the overflow signal disappears, and if the overflow signal disappears, close the suction opening to stop vacuum pumping to the inner pot, and control the pressure relief hole to open to relieve pressure to the inner pot.
In some examples, the controller is further configured to close the air pumping opening to stop pumping vacuum to the inner pot before food is boiled, and control the pressure relief hole to open to relieve pressure to the inner pot when the pressure of the inner pot reaches a first predetermined pressure before the inner pot gradually changes to a normal pressure state.
In some examples, if an overflow signal is detected, the suction opening is opened to draw vacuum to the inner pot, and the pressure relief hole is controlled to be closed to stop relieving pressure to the inner pot, and the controller specifically includes: and controlling the pressure relief hole to be closed to stop relieving the pressure of the inner pot, and opening the air suction port to suck vacuum in the inner pot until the air pressure of the inner pot reaches a second preset pressure.
In some examples, if the overflow signal disappears, the air suction port is closed to stop vacuum suction to the inner pot, and the pressure relief hole is controlled to be opened to relieve pressure to the inner pot, and the controller specifically includes: and delaying for a preset time after the overflow signal disappears, closing the air pumping hole to stop pumping vacuum to the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the pressure of the inner pot from the second preset pressure to the first preset pressure.
In some examples, the predetermined time is 0-30 seconds and the first predetermined pressure is 0-20 Kpa.
To achieve the above object, an embodiment of a third aspect of the present invention discloses a non-transitory computer-readable storage medium on which a control program of a cooking appliance is stored, the program implementing the control method of the cooking appliance when executed by a processor.
Drawings
Fig. 1 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a cooking appliance according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a cooking appliance according to another embodiment of the present invention;
fig. 4 is a control schematic diagram of a control method of a cooking appliance according to an embodiment of the present invention.
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 drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method of a cooking appliance and the cooking appliance according to an embodiment of the present invention are described below with reference to the accompanying drawings.
First, in a cooking mode, the cooking appliance of the embodiment of the present invention can perform negative pressure cooking on food, that is: the inner pot is in a negative pressure state to cook food.
Specifically, as shown in fig. 1, the cooking appliance 200 includes: an inner pot 210, a heating device 220, a pot body 230, a pot cover 240, an air pressure adjusting device 250 and a controller 260.
Wherein, the inner pot 210 is used for containing food to be cooked. The heating means 220 is used to heat the inner pot 210. The pot body 230 is used for carrying the inner pot 210. Pot cover 240 is connected to pot body 230, and pot body 240 is used to enclose inner pot 210 or pot body 230. The air pressure adjusting means 250 is provided on the lid 240 for adjusting the air pressure of the inner pot 210. The controller 260 is configured to control the heating device 220 to heat the inner pot 210 after entering the cooking mode, and control the air pressure adjusting device 250 to draw a vacuum to the inner pot 210, so that the inner pot 210 cooks food under negative pressure.
The air pressure adjusting device 250 includes, but is not limited to, an air pump 251 and a valve 252, when negative pressure is required in the inner pan 210, the valve 250 can be opened, air is pumped from the inner pan 210 by the air pump 250, a certain vacuum degree is generated in the inner pan 210, and negative pressure is generated in the inner pan 210, that is: the air pressure in the inner pot 210 is less than the outside air pressure. In addition, when positive pressure is needed in the inner pan 210, the valve 252 can be opened, air is input into the inner pan 210 through the air pump 250, so that the pressure in the inner pan 210 is increased, and positive pressure is generated in the inner pan 210, that is: the air pressure inside the inner pot 210 is greater than the outside air pressure.
It is understood that the manner of generating the positive pressure in the inner pot 210 is not limited to the manner realized by the air pressure adjusting device 250, and the positive pressure may be generated by the water vapor after the inner pot is heated, similar to the electric pressure cooker in the related art.
The cooking appliance 200 further comprises an exhaust valve 270, and the exhaust valve 270 is used to open when the air needs to be exhausted so as to exhaust the air pressure in the inner pot 210.
When the cooking appliance is in a cooking mode, the heating device is started to heat the inner pot, and the air pressure adjusting device is controlled to extract vacuum from the inner pot so that the inner pot cooks food under negative pressure.
Specifically, when the cooking electric appliance works, the cooking electric appliance enters a cooking mode including a cooking mode, a heat preservation mode, a pressure maintaining mode and other modes, a heating device is started, and the heating device is controlled to run at rated power so as to heat the inner pot at an accelerated speed. And (4) vacuumizing the inner pot, and stopping vacuumizing the inner pot until the vacuum degree of the inner pot reaches a preset vacuum degree. Wherein the predetermined degree of vacuum is, for example, greater than or equal to 50 Kpa.
During cooking, the temperature distribution within the cooking chamber is not uniform. Since the heat output from the heating device in the cooking appliance is gradually transferred from the bottom to the top of the cooking material, the temperature of the cooking cavity assumes a layered state. Specifically, since the bottom of the cooking chamber is in direct contact with the heater, the temperature at the bottom of the cooking chamber is the highest, the temperature at the middle is the next lowest, and the temperature at the top of the cooked food is the lowest.
In the embodiment of the invention, because the temperature in the cooking cavity is layered, the bottom of the cooking cavity reaches the boiling point firstly to generate bubbles, and the generated bubbles are used for stirring the cooking food. But since the temperatures of the middle and top portions are now lower than the bottom portion, the temperatures of the middle and top portions do not reach boiling points and the entire cooking chamber does not really go to boiling. In other words, the bubbles generated in the embodiment of the present invention are generated when the bottom of the cooking cavity reaches the boiling point.
The gelatinization temperature of the rice grains is usually about 62 ℃, the rice grains are easy to be bonded into a mass after gelatinization and block heat convection, and in order to enable the rice grains to generate bubbles before gelatinization, the vacuum of the inner pot is extracted to reduce the boiling point, so that the rice grains generate bubbles as far as possible before the gelatinization temperature, a dense bubble channel is formed, and the convection heat transfer is enhanced. Vacuumizing from water absorption to heating, raising temperature, maintaining the vacuum degree above 50Kpa (boiling point 80 ℃), and stopping vacuumizing when reaching the stable boiling point 80 ℃. In the process of heating rice, the rice grains are bonded into lumps, and the rice is heated unevenly, but in the process of heating rice, the rice grains generate bubbles before being agglomerated, so that more continuous bubble channels distributed more evenly are formed, convection heat transfer is enhanced, the rice is heated evenly in the whole process, and the quality of the rice is improved.
It is understood that the vacuum level of 50Kpa is merely exemplary and may be appropriately adjusted according to specific requirements.
In addition, the inner surface of the inner pot in the embodiment of the invention is sprayed with the non-stick coating, so that bubbles generated at the bottom of the pot can slide and separate quickly, more bubble channels can be formed quickly, and the bubbles can act on the cooked food more uniformly.
This cooking utensil can make interior pot form the negative pressure through atmospheric pressure adjusting device, because the boiling point reduces, and the bubble is produced promptly at the bottom of a boiler before the rice grain gelatinization, forms dense bubble passageway, and intensive convection heat transfer to make the whole thermally equivalent of rice, finally promote the quality of rice.
Because during the negative pressure culinary art, the boiling point reduces, and the boiling can be more violent than conventional cooking utensil, and the bubble that the boiling produced probably carries food waste and will extract vacuous extraction opening and pressure release hole jam in culinary art process, will influence the extraction vacuum, still can produce the malleation when the pressure release hole is blockked up moreover, has the risk of uncapping abnormally.
Accordingly, an embodiment of the present invention discloses a control method of a cooking appliance.
The specific structure of the cooking appliance is shown in fig. 1. In addition, the cooking appliance further comprises an air suction opening and a pressure relief opening, wherein the air pressure adjusting device 250 is used for controlling the opening and closing of the air suction opening, and the exhaust valve 270 is used for controlling the opening and closing of the pressure relief opening.
As shown in fig. 2, in conjunction with fig. 3 and 4, a method for controlling a cooking appliance includes:
s201: in the cooking mode, an overflow signal is detected when the food boils.
Whether or not there is an overflow can be detected by a sensor or the like.
S202: if an overflow signal is detected, the air suction opening is opened to suck vacuum in the inner pot, and the pressure relief hole is controlled to be closed to stop relieving pressure in the inner pot.
That is, upon entering the boiling stage, the air pressure adjusting means 250 stops operating, namely: the electromagnetic valve and the vacuum pump (i.e., the air pump 251) of the air pressure adjusting device 250 stop working, and open the pressure release valve (i.e., the air release valve 270), so that the pressure release hole is opened, and at the moment, the pressure is in a normal pressure boiling state, after the overflow signal is detected, the electromagnet works to drive the pressure release valve to be closed, so that the pressure release hole is closed, and simultaneously the electromagnetic valve and the vacuum pump are opened, so that micro negative pressure is extracted to P1 from the cooking utensil, and in the negative pressure state, bubbles can be broken due to the difference between the internal pressure and the external pressure of the foam.
In a specific example of the present invention, the method further includes: and judging whether the overflow signal disappears. If the overflow signal disappears, the air suction opening is closed to stop vacuum suction of the inner pot, and the pressure relief hole is controlled to be opened to relieve pressure of the inner pot.
Namely: after a certain time T after the overflow signal disappears, the pressure relief hole is opened to relieve pressure, meanwhile, the electromagnetic valve and the vacuum pump are closed, and the cooking appliance is restored to the normal pressure state until the boiling is finished.
In a specific example, the method for controlling a cooking appliance further includes: before the food is boiled, the air pumping port is closed to stop pumping vacuum to the inner pot; and before the inner pot gradually changes to the normal pressure state, when the air pressure of the inner pot reaches a first preset pressure P2, the pressure relief hole is controlled to be opened so as to relieve the pressure of the inner pot. That is to say, in order to generate micro negative pressure to break bubbles in the boiling stage, before entering the boiling stage, the vacuum pump and the electromagnetic valve stop working, the cooking utensil gradually changes from the negative pressure state to the normal pressure state along with the generation of bubbles, and before entering the normal pressure state, when the pressure is P2, the electromagnet drives the pressure release valve to open for pressure release.
In a specific example of the present invention, if an overflow signal is detected, opening the suction port to draw a vacuum in the inner pot and controlling the pressure release hole to be closed to stop releasing the pressure in the inner pot includes: controlling the pressure relief hole to be closed to stop the pressure relief of the inner pot; and opening the air suction port to draw vacuum on the inner pot until the air pressure of the inner pot reaches a second preset pressure. That is, when the normal pressure state is reached and the overflow signal is detected, the electromagnet works to drive the pressure release valve to close, and simultaneously the electromagnetic valve and the vacuum pump work to open, so as to extract the negative pressure to P1 (namely, the second preset pressure) for the cooking utensil, and the P1 enables the bubbles in the cooking utensil to be broken but not to reduce the boiling point due to the negative pressure.
Further, if the overflow signal disappears, close the extraction opening in order to stop to interior pot extraction vacuum to control the pressure release hole opens in order to interior pot pressure release, include: delaying for a predetermined time after the overflow signal disappears; and after the preset time is delayed, closing the air suction port to stop vacuum suction of the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the air pressure of the inner pot from the second preset pressure to the first preset pressure. Namely, after the overflow signal disappears, the electromagnet is closed, the pressure release valve is opened to release pressure, the electromagnetic valve and the vacuum pump are closed, the normal pressure working state is entered, and the pressure is released after the overflow signal disappears for T time (namely, preset time), and the time T enables the pressure in the cooking utensil to be changed from P1 to P2.
Wherein the predetermined time is, but not limited to, 0-30 seconds and the first predetermined pressure is, but not limited to, 0-20 Kpa.
According to the control method of the cooking utensil provided by the embodiment of the invention, the purposes of normal pressure boiling and micro negative pressure bubble breaking and overflow prevention are realized by controlling the opening and closing of the air suction opening and the pressure relief hole in the boiling and the pre-boiling stage, the bubble breaking purpose can be achieved under the action of micro negative pressure, the boiling point can not be reduced due to overlarge negative pressure, the overflow of bubbles and food residues can be effectively prevented, and the blockage of the air suction opening and the pressure relief hole by the food residues is avoided.
As shown in fig. 1, an embodiment of the present invention discloses a cooking appliance, including: the cooker comprises an inner pot 210, a heating device 220, a pot body 230, a pot cover 240, an air suction opening for sucking vacuum from the inner pot, a pressure relief hole for relieving pressure from the inner pot, and a controller 260, wherein an air pressure adjusting device 250 is used for controlling the opening and closing of the air suction opening. The vent valve 270 is used to control the opening and closing of the pressure relief vent.
The controller 260 is configured to detect an overflow signal when food boils in a cooking mode, open the air suction opening to vacuum the inner pot if the overflow signal is detected, and control the pressure relief hole to close to stop releasing pressure to the inner pot.
Further, the controller 260 is further configured to determine whether the overflow signal disappears, and if the overflow signal disappears, close the air pumping hole to stop pumping vacuum to the inner pot, and control the pressure relief hole to open to relieve pressure to the inner pot.
In an embodiment of the present invention, the controller 260 is further configured to close the air pumping opening to stop pumping vacuum to the inner pot before the food is boiled, and control the pressure relief hole to open to relieve pressure to the inner pot when the pressure of the inner pot reaches a first predetermined pressure before the inner pot gradually changes to the normal pressure state.
In an embodiment of the present invention, if an overflow signal is detected, when the air suction port is opened to draw vacuum to the inner pot and the pressure relief hole is controlled to be closed to stop relieving pressure to the inner pot, the controller 260 specifically is: and controlling the pressure relief hole to be closed to stop relieving the pressure of the inner pot, and opening the air suction port to suck vacuum in the inner pot until the air pressure of the inner pot reaches a second preset pressure.
In an embodiment of the present invention, if the overflow signal disappears, the controller 260 specifically includes: and delaying for a preset time after the overflow signal disappears, closing the air pumping hole to stop pumping vacuum to the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the pressure of the inner pot from the second preset pressure to the first preset pressure.
Wherein the predetermined time is 0-30 seconds, and the first predetermined pressure is 0-20 Kpa.
Cooking appliances include, but are not limited to, electric cookers, rice cookers, and electric pressure cookers.
According to the cooking utensil provided by the embodiment of the invention, the purposes of normal pressure boiling and micro negative pressure bubble breaking and overflow prevention are realized by controlling the opening and closing of the air suction opening and the pressure relief hole in the boiling and pre-boiling stages, the bubble breaking purpose can be achieved under the action of micro negative pressure, the boiling point can not be reduced due to overlarge negative pressure, bubbles and food residues can be effectively prevented from overflowing, the blockage of the air suction opening and the pressure relief hole by the food residues is avoided, and the quality of the cooking utensil is improved.
It should be noted that the specific working process of the cooking appliance in the embodiment of the present invention is similar to the specific implementation manner of the control method of the cooking appliance in the embodiment of the present invention, and please refer to the description of the method part specifically, and no further description is given for reducing redundancy.
In addition, other structures and functions of the cooking appliance according to the embodiment of the present invention are known to those skilled in the art and will not be described herein.
Finally, an embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a cooking control program of a cooking appliance is stored, where the program is executed by a processor to implement the cooking control method of the cooking appliance of the foregoing embodiment.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A control method of a cooking appliance is characterized in that the cooking appliance comprises an inner pot, a heating device for heating the inner pot, a pot body for bearing the inner pot, an air suction opening and a pressure relief hole, and the method comprises the following steps:
in the cooking mode, before the food is boiled, the air suction port is closed to stop the vacuum suction on the inner pot;
before the inner pot gradually changes to a normal pressure state, when the air pressure of the inner pot reaches a first preset pressure, the pressure relief hole is controlled to be opened so as to relieve the pressure of the inner pot;
detecting an overflow signal when the food boils;
and if an overflow signal is detected, opening the air suction opening to suck vacuum on the inner pot until the air pressure of the inner pot reaches a second preset pressure, and controlling the pressure relief hole to be closed to stop relieving the pressure of the inner pot.
2. The method of controlling a cooking appliance according to claim 1, further comprising:
judging whether the overflow signal disappears or not;
if the overflow signal disappears, the air pumping hole is closed to stop pumping vacuum to the inner pot, and the pressure relief hole is controlled to be opened to relieve pressure to the inner pot.
3. The method for controlling a cooking appliance according to claim 2, wherein if the overflow signal disappears, the step of closing the suction opening to stop the vacuum suction to the inner pot and controlling the pressure relief hole to open to relieve the pressure to the inner pot comprises the steps of:
delaying for a predetermined time after the overflow signal disappears;
and after the preset time is delayed, closing the air suction port to stop vacuum suction of the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the air pressure of the inner pot from the second preset pressure to the first preset pressure.
4. The method of claim 3, wherein the predetermined time is 0-30 seconds and the first predetermined pressure is 0-20 Kpa.
5. A cooking appliance, comprising:
the inner pot and a heating device for heating the inner pot;
the pot body is used for bearing the inner pot;
the pot cover is connected with the pot body and is used for sealing the inner pot or the pot body;
the inner pot is provided with an air suction hole for sucking vacuum to the inner pot and a pressure relief hole for relieving pressure to the inner pot;
the controller is used for detecting an overflow signal when food boils in a cooking mode, opening the air suction port to suck vacuum on the inner pot until the air pressure of the inner pot reaches a second preset pressure if the overflow signal is detected, and controlling the pressure relief hole to be closed to stop relieving pressure on the inner pot; the pressure relief hole is also used for closing the air suction hole to stop vacuum suction of the inner pot before food is boiled, and controlling the pressure relief hole to be opened to relieve pressure of the inner pot when the air pressure of the inner pot reaches a first preset pressure before the inner pot gradually becomes a normal pressure state.
6. The cooking appliance according to claim 5, wherein the controller is further configured to determine whether the overflow signal disappears, and if the overflow signal disappears, close the pumping hole to stop pumping vacuum to the inner pot, and control the pressure relief hole to open to relieve pressure to the inner pot.
7. The cooking appliance according to claim 6, wherein if the overflow signal disappears, the controller is specifically configured to close the air suction port to stop drawing the vacuum to the inner pot and control the pressure release hole to open to release the pressure to the inner pot: and delaying for a preset time after the overflow signal disappears, closing the air pumping hole to stop pumping vacuum to the inner pot, and controlling the opening of the pressure relief hole to relieve the pressure of the inner pot so as to change the pressure of the inner pot from the second preset pressure to the first preset pressure.
8. The cooking appliance of claim 7, wherein the predetermined time is 0-30 seconds and the first predetermined pressure is 0-20 Kpa.
9. A non-transitory computer-readable storage medium, on which a control program of a cooking appliance is stored, the program implementing the control method of the cooking appliance according to any one of claims 1 to 3 when executed by a processor.
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| CN201811012296.3A CN110870680B (en) | 2018-08-31 | 2018-08-31 | Cooking appliance control method and cooking appliance |
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| CN106551610A (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 method for heating and controlling of cooking apparatus |
| CN206761472U (en) * | 2016-12-30 | 2017-12-19 | 佛山市顺德区美的电热电器制造有限公司 | Cooking equipment |
| CN207604783U (en) * | 2017-06-19 | 2018-07-13 | 佛山市顺德区美的电热电器制造有限公司 | Cooking equipment |
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