CN110507153B

CN110507153B - Cooking appliance, control method thereof, control device thereof and computer-readable storage medium

Info

Publication number: CN110507153B
Application number: CN201810491060.6A
Authority: CN
Inventors: 杨云; 程志喜; 吕伟刚; 罗嗣胜; 卢均山; 郑量; 韩平英
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2022-01-14
Anticipated expiration: 2038-05-21
Also published as: CN110507153A

Abstract

The invention provides a cooking appliance, a control method thereof, a control device and a computer readable storage medium. The control method comprises the following steps: and controlling the display state of the display module according to the working condition of the air exhaust device so as to enable the display state of the display module to correspond to the pressure in the cooking cavity. The invention provides a control method of a cooking appliance, which is used for displaying the magnitude of a negative pressure value in a cooking cavity. Specifically, the display state of the display module is controlled according to the working condition of the air exhaust device and/or the working condition of the exhaust valve, so that the display state of the display module corresponds to the pressure in the cooking cavity. Thus, the pressure sensor is not needed, and the cost of the cooking utensil is reduced.

Description

Cooking appliance, control method thereof, control device thereof and computer-readable storage medium

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 negative pressure value of the existing cooking utensil with the negative pressure pumping function can not be externalized, and a user can not know whether the inside of the cooking cavity is in a negative pressure state or not and the size of the negative pressure in the cooking process.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the present invention is directed to a method of controlling a cooking appliance.

A second aspect of the present invention is directed to a control apparatus of a cooking appliance.

A third aspect of the present invention is directed to a cooking appliance.

A fourth aspect of the present invention is directed to a computer-readable storage medium.

In order to achieve the above object, a first aspect of the present invention provides a method for controlling a cooking appliance, the method comprising: according to the working condition of the air extractor of the cooking appliance, the display state of a display module of the cooking appliance is controlled, so that the display state of the display module corresponds to the pressure in the cooking cavity of the cooking appliance.

According to the control method of the cooking appliance provided by the technical scheme of the invention, the air exhaust device is controlled to be opened, the air exhaust device exhausts the air in the cooking cavity, so that the cooking cavity is in a negative pressure state, and when the exhaust valve is opened, the outside air enters the cooking cavity, so that the pressure in the cooking cavity tends to be normal pressure or becomes normal pressure. In order to display the size of the negative pressure value in the cooking cavity, a display module is arranged on the cooking appliance main body. Specifically, the display state of the display module is controlled according to the working condition of the air exhaust device and/or the working condition of the exhaust valve, so that the display state of the display module corresponds to the pressure in the cooking cavity. Thus, the pressure sensor is not needed, and the cost of the cooking utensil is reduced.

In addition, the control method of the cooking utensil provided by the technical scheme of the invention also has the following additional technical characteristics:

in the above technical solution, preferably, the working condition includes at least one of a start-stop condition, a working time, and a working state.

The working state includes continuous operation or intermittent operation. After the air exhaust device is opened and the exhaust valve is not opened, the air exhaust device performs negative pressure pumping in the cooking cavity (gas in the cooking cavity is pumped out, so that the cooking cavity is in a negative pressure state), the air exhaust device is closed, the air exhaust device stops pumping negative pressure, when the air exhaust device is opened and works continuously, the pressure in the cooking cavity is continuously increased, and when the air exhaust device works intermittently, the pressure in the cooking cavity is unchanged or reduced or increased. After the exhaust valve is opened, outside air enters the cooking cavity, the pressure in the cooking cavity tends to be normal pressure or becomes normal pressure, and when the exhaust valve is closed, the outside air stops entering the cooking cavity.

In the above technical solution, preferably, according to a working condition of an air extractor of the cooking appliance, controlling a display state of a display module of the cooking appliance so that the display state of the display module corresponds to a pressure in a cooking cavity of the cooking appliance, specifically including: when the air extracting device is started and continuously works, determining a preset interval of the working time of the air extracting device; and controlling the display state of the display module to correspond to the preset interval of the working time of the air extraction device.

The air exhaust device is opened and continuously works, when the exhaust valve is closed, the pressure in the cooking cavity is continuously increased, the negative pressure is lower and lower, and the longer the working time of the air exhaust device is, the lower the negative pressure in the cooking cavity is. And determining a preset interval in which the working time of the air extraction device is positioned, wherein in the same preset interval, the display states of the display modules are the same, the display states of the display modules corresponding to different preset intervals are different, and the display states correspond to the pressure values of the preset interval.

In the foregoing technical solution, preferably, the controlling the display state of the display module corresponds to the preset interval where the working time of the air extractor is located, and specifically includes: when the working time of the air extracting device is in a first preset interval, controlling the display module to display a first state; when the working time of the air extracting device is in a second preset interval, controlling the display module to display a second state; the first preset interval and the second preset interval are sequentially arranged according to the sequence of the working time of the air extracting device, and the absolute value of the pressure represented by the first state is larger than the absolute value of the pressure represented by the second state.

The preset intervals comprise a first preset interval and a second preset interval, and are sequentially arranged according to the sequence of the working time of the air extractor, namely the maximum value of the working time of the air extractor in the first preset interval is smaller than the minimum value of the working time of the air extractor in the second preset interval. For example, the air extraction device is kept in an open state for 40s, and the 40s is divided into a first preset interval and a second preset interval, wherein the first preset interval is (0s, 20 s), and the second preset interval is (20s, 40 s).

In the foregoing technical solution, preferably, the controlling a display state of a display module of the cooking appliance according to a working condition of an air extractor of the cooking appliance so that the display state of the display module corresponds to a pressure in a cooking cavity of the cooking appliance specifically includes: and when the air exhaust device works intermittently to enter a pressure maintaining stage, controlling the display state of the display module to be unchanged.

When the air extracting device works intermittently, the exhaust valve stops working, and the pressure value in the cooking cavity is kept unchanged, the display state of the display module is controlled to be unchanged.

In the above technical solution, preferably, when the working time of the air exhaust device reaches a first preset time, the air exhaust device is controlled to intermittently work to enter the pressure maintaining stage.

The intermittent operation of the air extraction device means that the air extraction is started and the working state is maintained, after the first time period, the air extraction device is stopped, and after the second time period, the returning to the intermittent operation of the air extraction device means that the air extraction is started and the working state is maintained, and the process is circulated. And in the intermittent working process of the air extracting device, the exhaust valve is always closed.

In the foregoing technical solution, preferably, the controlling a display state of a display module of the cooking appliance according to a working condition of an air extractor of the cooking appliance so that the display state of the display module corresponds to a pressure in a cooking cavity of the cooking appliance specifically includes: and when the air exhaust device stops working and the exhaust valve is opened, controlling the display state of the display module to be a third state.

When the air extracting device stops working and the exhaust valve is opened, the pressure in the cooking cavity tends to be normal pressure or becomes normal pressure. In this process, the display state of the display module is controlled to be the third state at all times, and preferably, the third state is 0.

In the above technical solution, preferably, when the time of the pressure maintaining stage reaches a second preset time, the air exhaust device is controlled to stop working and the exhaust valve is controlled to open.

In the above technical solution, preferably, according to a working condition of an air extractor of the cooking appliance, controlling a display state of a display module of the cooking appliance so that the display state of the display module corresponds to a pressure in a cooking cavity of the cooking appliance, specifically including: when the air extracting device stops working and the exhaust valve is opened, determining a preset interval of the working time of the exhaust valve; and controlling the display state of the display module to correspond to the preset interval of the working time of the exhaust valve.

When the air extracting device stops working and the exhaust valve is opened, the pressure in the cooking cavity tends to be normal pressure or becomes normal pressure. In the process, a preset interval in which the working time of the exhaust valve is located is determined, in the same preset interval, the display states of the display modules are the same, the display states of the display modules corresponding to different preset intervals are different, and the display states correspond to the pressure values of the preset interval. When the working time of the exhaust valve is in a third preset interval, controlling the display module to display a fourth state; when the working time of the exhaust valve is in a fourth preset interval, controlling the display module to display a fifth state; and the third preset interval and the fourth preset interval are sequentially arranged according to the sequence of the working time of the exhaust valve. For example, the exhaust valve is maintained in the open state for 40s, and the 40s is divided into a third preset interval and a fourth preset interval, wherein the third preset interval is (0s, 20 s), and the fourth preset interval is (20s, 40 s).

In the above technical solution, preferably, the display module includes an LED module, and the controlling the display state of the display module of the cooking appliance specifically includes: the display state of the display module is controlled by controlling the lighting number of the LEDs, and the lower the pressure of the cooking cavity is, the more the LEDs are controlled to be lighted, or the lower the pressure of the cooking cavity is, the less the LEDs are controlled to be lighted.

The display module comprises an LED module, and the different display states can be different LEDs, such as different positions and/or colors, or different numbers of LEDs, such as the longer the negative pressure pumping time is, the larger the negative pressure in the cooking cavity is, and the more or less LEDs are lighted.

Or the display module comprises a pressure size indication icon and a pointer, the pressure size indication icon can be a scale, and the position of the pointer relative to the pressure size indication icon is controlled according to the pressure in the cooking cavity so as to present different display states.

In the foregoing technical solution, preferably, the display module includes a display lamp, and the controlling the display state of the display module of the cooking appliance specifically includes: the display state of the display module is controlled by controlling the flickering frequency of the display lamp, and the lower the pressure of the cooking cavity is, the lower or higher the flickering frequency of the display lamp is.

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, an air extracting device and a display module, the air extracting device is 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, the display module is used for displaying pressure in the cooking cavity, and the control device of the cooking appliance is used for executing the control method of the cooking appliance.

An aspect of the third aspect of the present invention provides a cooking appliance, including a processor, configured to implement the steps of the method for controlling a cooking appliance according to any one of the above aspects when executing a computer program stored in a memory. Therefore, the cooking appliance has the beneficial effects of the control method of the cooking appliance according to any one of the above embodiments, and details are not repeated herein.

The cooking appliance is a pressure cooker, an electric cooker or other cooking appliances.

An aspect of a fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the method of controlling a cooking appliance according to any one of the above aspects. Therefore, the computer readable storage medium has the beneficial effects of the control method of the cooking appliance according to any of the above embodiments, and is not described herein again.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flowchart illustrating a method for controlling a cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;

FIG. 3 is a graph of time versus negative pressure for one embodiment of the present invention;

fig. 4 is a schematic block diagram of a control apparatus of a cooking appliance according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a control method of a cooking appliance according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

100 cooking utensils, 1 pot body, 11 inner pot, 12 heating device, 2 pot cover, 21 exhaust valve, 22 exhaust port, 23 display module, 3 exhaust device, 4 pipeline, 5 valve, 6 cooking cavity, 200 control device and 202 control unit.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention 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 21 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 cooking utensil further comprises a display module used for displaying the pressure in the cooking cavity, so that the pressure in the cooking cavity is externalized and visualized.

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, the cooking appliance 100 includes a cooking appliance main body, an air extracting device 3 disposed on the cooking appliance main body, the cooking appliance main body defining a cooking cavity 6, the air extracting device 3 being used for extracting air in the cooking cavity 6, and a display module 23 being used for displaying pressure in the cooking cavity 6, the control method of the cooking appliance 100 includes: step S10, controlling the display state of the display module 23 according to the operation condition of the air extractor 3, so that the display state of the display module 23 corresponds to the pressure in the cooking cavity 6.

In the control method of the cooking appliance 100 according to the above embodiment of the present invention, the air extractor 3 is controlled to be opened, the air extractor 3 extracts the air in the cooking cavity 6, so that the inside of the cooking cavity 6 is in a negative pressure state, and when the exhaust valve 21 is opened, the outside air enters the cooking cavity 6, so that the pressure in the cooking cavity 6 tends to or becomes the normal pressure. In order to display the magnitude of the negative pressure value in the cooking cavity 6, a display module 23 is arranged on the cooking appliance main body. Specifically, the display state of the display module 23 is controlled according to the working condition of the air extractor 3 and/or according to the working condition of the exhaust valve 21, so that the display state of the display module 23 corresponds to the pressure in the cooking cavity 6. Thus, the pressure sensor is not required, and the cost of the cooking appliance 100 can be reduced.

Preferably, the working condition includes at least one of a start-stop condition, a working time and a working state.

The working state includes continuous operation or intermittent operation. After the air exhaust device 3 is opened and the exhaust valve 21 is not opened, the air exhaust device 3 performs negative pressure pumping in the cooking cavity 6 (gas in the cooking cavity 6 is pumped out, so that a negative pressure state is presented in the cooking cavity 6), the air exhaust device 3 is closed, the air exhaust device 3 stops pumping negative pressure, when the air exhaust device 3 is opened and works continuously, the pressure in the cooking cavity 6 is continuously increased, and when the air exhaust device 3 works intermittently, the pressure in the cooking cavity 6 is unchanged or reduced or increased. After the exhaust valve 21 is opened, the outside air enters the cooking cavity 6, the pressure in the cooking cavity 6 tends to be normal pressure or becomes normal pressure, and when the exhaust valve 21 is closed, the outside air stops entering the cooking cavity 6.

Preferably, step S10 specifically includes: step S102, when the air extraction device 3 is started and continuously works, as shown in section E in FIG. 3, determining a preset interval in which the working time of the air extraction device 3 is located;

step S104, controlling the display state of the display module 23 to correspond to the preset interval of the working time of the air extracting device 3.

When the air extractor 3 is opened and continuously works, and the exhaust valve 21 is closed, the pressure in the cooking cavity 6 continuously rises, the negative pressure becomes lower and lower, and the longer the working time of the air extractor 3 is, the lower the negative pressure in the cooking cavity 6 is. And determining a preset interval in which the working time of the air extracting device 3 is positioned, wherein in the same preset interval, the display states of the display modules 23 are the same, the display states of the display modules 23 corresponding to different preset intervals are different, and the display states correspond to the pressure values of the preset interval.

Preferably, step S104 specifically includes: step S1042, when the operating time of the air extracting device 3 is in a first preset interval, controlling the display module 23 to display a first state; step S1044 of controlling the display module 23 to display a second state when the operating time of the air extracting device 3 is within a second preset interval; according to the sequence of the working time of the air extracting device 3, the first preset interval and the second preset interval are sequentially arranged, and the absolute value of the pressure represented by the first state is smaller than the absolute value of the pressure represented by the second state.

The preset intervals comprise a first preset interval and a second preset interval, and are sequentially arranged according to the sequence of the working time of the air extracting devices 3, namely the maximum value of the working time of the air extracting devices 3 in the first preset interval is smaller than the minimum value of the working time of the air extracting devices 3 in the second preset interval. For example, the air extracting device 3 is kept in the open state for 40s, and the 40s is divided into a first preset interval and a second preset interval, wherein the first preset interval is (0s, 20 s), and the second preset interval is (20s, 40 s).

Preferably, step S10 specifically includes: in step S106, when the pumping device 3 intermittently operates to enter the pressure maintaining stage, as shown in section F in fig. 3, the display state of the display module 23 is controlled to be unchanged.

When the air extractor 3 is intermittently operated and the exhaust valve 21 is stopped, and the pressure value in the cooking cavity 6 is kept unchanged, the display state of the control display module 23 is unchanged.

Preferably, when the working time of the air exhaust device reaches a first preset time (such as the time used in section E in figure 3), the air exhaust device is controlled to work intermittently to enter the pressure maintaining stage.

The intermittent operation of the air extraction device means that the air extraction is started and the working state (continuous working state) is maintained, after the first time period, the air extraction device is stopped, and after the second time period, the returning to the intermittent operation of the air extraction device means that the air extraction is started and the working state is maintained, and the process is circulated. And in the intermittent working process of the air extracting device, the exhaust valve is always closed.

As shown in fig. 5, in a specific embodiment, step S10 specifically includes: in step S108, when the pumping device 3 stops working and the exhaust valve 21 is opened, as indicated by the segment G in fig. 3, the display state of the display module 23 is controlled to be the third state.

When the suction means 3 are deactivated and the exhaust valve 21 is opened, the pressure inside the cooking chamber 6 tends towards or to become atmospheric. In this process, the display state of the control display module 23 is always the third state, and preferably, the third state is 0.

Preferably, when the time of the pressure maintaining stage reaches a second preset time (such as the time used in the section F in figure 3), the air exhaust device is controlled to stop working and the exhaust valve is controlled to open.

In another specific embodiment, step S10 specifically includes: step S108', when the air extracting device 3 stops working and the exhaust valve 21 is opened, as shown in section G in FIG. 3, determining a preset interval where the working time of the exhaust valve 21 is located; in step S110', the display state of the display module 23 is controlled to correspond to the preset interval of the operating time of the exhaust valve 21.

When the suction means 3 are deactivated and the exhaust valve 21 is opened, the pressure inside the cooking chamber 6 tends towards or to become atmospheric. In the process, a preset interval in which the working time of the exhaust valve 21 is located is determined, and in the same preset interval, the display states of the display modules 23 are the same, and the display states of the display modules 23 corresponding to different preset intervals are different and correspond to the pressure value of the preset interval. When the working time of the exhaust valve 21 is in a third preset interval, controlling the display module 23 to display a fourth state; when the working time of the exhaust valve 21 is in a fourth preset interval, controlling the display module 23 to display a fifth state; wherein, according to the sequence of the working time of the exhaust valve 21, the third preset interval and the fourth preset interval are arranged in sequence. For example, the exhaust valve 21 is maintained in the open state for 40s, and the 40s is divided into a third preset section and a fourth preset section, where the third preset section is (0s, 20 s), and the fourth preset section is (20s, 40 s).

In the first specific embodiment, the display module 23 includes an LED block, and the controlling the display state of the display module 23 of the cooking appliance in step S10 specifically includes: the display state of the display module 23 is controlled by controlling the number of lit LEDs, and the lower the pressure in the cooking chamber, the more LEDs are controlled to be lit, or the lower the pressure in the cooking chamber, the less LEDs are controlled to be lit, or the position and/or color of the lit LEDs are controlled to control the display state of the display module 23.

The display module 23 includes LED blocks, and the different display states may be different LEDs, for example, different positions and/or colors of LEDs, or different numbers of LEDs, that is, the longer the negative pressure pumping time is, the greater the negative pressure in the cooking cavity is, the more or less LEDs are lit.

In a second specific embodiment, the display module 23 includes a pressure level indication icon and a pointer rotatably disposed on the cooking appliance main body, and controlling the display state of the display module 23 specifically includes: the display state of the display module 23 is controlled by controlling the swing of the pointer.

The display module 23 includes a pressure level indication icon, which may be a scale, and a pointer, and controls the position of the pointer relative to the pressure level indication icon according to the pressure within the cooking chamber 6 to present different display states.

In a third specific embodiment, the display module includes a display lamp, and the controlling the display state of the display module of the cooking appliance in step S10 specifically includes: the display state of the display module is controlled by controlling the flashing frequency of the display lamp, and the lower the pressure of the cooking cavity, the lower or higher the flashing frequency of the display lamp.

In a specific embodiment, the pressure cooker lid 100 is provided with the air extracting device 3, the valve 5, the negative pressure display module 23 and the like. When a user selects a corresponding function of needing to pump negative pressure to start cooking, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is pumped out of the cooking cavity, and at the moment, the display state of the negative pressure display module 23 is changed from the state 0 to the state 1. And the system starts timing t. When t is t1, the negative pressure display module 23 displays that the state is changed from state 1 to state 2. When t is t2, the negative pressure display module 23 displays that the state is changed from state 2 to state 3. When t is t3, the negative pressure display module 23 displays that the state is changed from state 3 to state 4. In this cycle, when t is tc, the negative pressure display module 23 changes the display state from the state c to the state c + 1. At this time, the system enters the pressure maintaining stage, the system restarts timing tb, the air extractor 3 and the valve 5 are intermittently operated to maintain the internal pressure of the cooking cavity, and the negative pressure display module 23 always displays the state c + 1. When tb is tb0, the dwell is ended. The system control valve 5 is closed, the air extracting device 3 stops working, the exhaust valve 21 is opened, the negative pressure display module 23 displays the state 0, the outside air enters, and the cooking cavity rapidly recovers to the normal pressure. The negative pressure display module 23 may be an LED module, and the different display states may be different LEDs, or different numbers of LEDs, that is, the longer the negative pressure pumping time is, the more LEDs are lit. As shown in fig. 3, the a-section display module displays state 1, the B-section display module displays state 2, the C-section display module displays state 3, the D-section display module displays state C, the H-section display state C +1, and the I-section display state 0, preferably, the absolute value of the pressure represented by display state 1 < the absolute value of the pressure represented by display state 2 < the absolute value of the pressure represented by display state 3 < the absolute value of the pressure represented by display state C +1, the absolute value of the pressure represented by display state C +1 > the absolute value of the pressure represented by display state 0, E represents a negative pressure pumping process in which the pumping device and the valve operate continuously, F represents a pressure holding process in which the pumping device and the valve operate intermittently (intermittently), and G represents a pressure releasing process in which the pumping device and the valve stop operating, and the exhaust valve opens.

As shown in fig. 4, an embodiment of the second aspect of the present invention provides a control device 200 of a cooking appliance 100, the cooking appliance 100 includes a cooking appliance main body, a gas extracting device 3 disposed on the cooking appliance main body, the cooking appliance main body defines a cooking cavity 6, the gas extracting device 3 is used for extracting gas in the cooking cavity 6, and a display module 23 is used for displaying pressure in the cooking cavity 6, the control device 200 of the cooking appliance 100 includes: a control unit 202 for controlling the display state of the display module 23 according to the working condition of the air extractor 3, so that the display state of the display module 23 corresponds to the pressure in the cooking cavity 6.

The control device 200 of the cooking apparatus 100 according to the above embodiment of the present invention controls the air extractor 3 to be opened, the air extractor 3 extracts the air in the cooking cavity 6, so that the inside of the cooking cavity 6 is in a negative pressure state, and when the exhaust valve 21 is opened, the outside air enters the cooking cavity 6, so that the pressure in the cooking cavity 6 tends to or becomes the normal pressure. In order to display the magnitude of the negative pressure value in the cooking cavity 6, a display module 23 is arranged on the cooking appliance main body. Specifically, the display state of the display module 23 is controlled according to the working condition of the air extractor 3 and/or according to the working condition of the exhaust valve 21, so that the display state of the display module 23 corresponds to the pressure in the cooking cavity 6. Thus, the pressure sensor is not required, and the cost of the cooking appliance 100 can be reduced.

Preferably, the control unit 202 is configured to: when the air extracting device 3 is started and continuously works, determining a preset interval of the working time of the air extracting device 3; the display state of the control display module 23 corresponds to the preset interval of the working time of the air extracting device 3.

Preferably, the control unit 202 is configured to: when the working time of the air extracting device 3 is in a first preset interval, controlling the display module 23 to display a first state; when the working time of the air extracting device 3 is in a second preset interval, controlling the display module 23 to display a second state; according to the sequence of the working time of the air extracting device 3, the first preset interval and the second preset interval are sequentially arranged, and the absolute value of the pressure represented by the first state is smaller than the absolute value of the pressure represented by the second state.

Preferably, the control unit 202 is configured to: when the air extractor 3 is intermittently operated to enter the pressure maintaining stage, the display state of the control display module 23 is unchanged.

The control unit is used for: when the working time of the air exhaust device reaches a first preset time (such as the time used in the section E in the figure 3), the air exhaust device is controlled to work intermittently so as to enter the pressure maintaining stage.

In a specific embodiment, the control unit 202 is configured to: when the air extracting device 3 stops working and the exhaust valve 21 is opened, the display state of the control display module 23 is a third state.

In another specific embodiment, the control unit is configured to: when the air extracting device 3 stops working and the exhaust valve 21 is opened, determining a preset interval of the working time of the exhaust valve 21; the display state of the control display module 23 corresponds to a preset interval in which the working time of the exhaust valve 21 is located.

In a first particular embodiment, the display module 23 comprises an LED block, and the control unit 202 is configured to: the display state of the display module 23 is controlled by controlling the number of lit LEDs, or the display state of the display module 23 is controlled by controlling the position and/or color of the lit LEDs, so that the lower the pressure in the cooking chamber, the more LEDs are controlled to be lit, or the lower the pressure in the cooking chamber, the less LEDs are controlled to be lit.

In a second specific embodiment, the display module 23 includes a pressure level indication icon and a pointer rotatably provided on the cooking appliance main body, and the control unit 202 is configured to: the display state of the display module 23 is controlled by controlling the swing of the pointer.

In a specific embodiment, the pressure cooker lid 100 is provided with the air extracting device 3, the valve 5, the negative pressure display module 23 and the like. When a user selects a corresponding function of needing to pump negative pressure to start cooking, the system controls the valve 5 to work, the valve 5 is opened, the air exhaust device 3 works, the negative pressure is pumped out of the cooking cavity, and at the moment, the display state of the negative pressure display module 23 is changed from the state 0 to the state 1. And the system starts timing t. When t is t1, the negative pressure display module 23 displays that the state is changed from state 1 to state 2. When t is t2, the negative pressure display module 23 displays that the state is changed from state 2 to state 3. When t is t3, the negative pressure display module 23 displays that the state is changed from state 3 to state 4. In this cycle, when t is tc, the negative pressure display module 23 changes the display state from the state c to the state c + 1. At this time, the system enters the pressure maintaining stage, the system restarts timing tb, the air extractor 3 and the valve 5 are intermittently operated to maintain the internal pressure of the cooking cavity, and the negative pressure display module 23 always displays the state c + 1. When tb is tb0, the dwell is ended. The system control valve 5 is closed, the air extracting device 3 stops working, the exhaust valve 21 is opened, the negative pressure display module 23 displays the state 0, the outside air enters, and the cooking cavity rapidly recovers to the normal pressure. The negative pressure display module 23 may be an LED module, and the different display states may be different LEDs, or different numbers of LEDs, that is, the longer the negative pressure pumping time is, the more LEDs are lit.

An embodiment of a third aspect of the present invention provides a cooking appliance 100, comprising a processor for implementing the steps of the control method of the cooking appliance 100 of any one of the above embodiments when executing a computer program stored in a memory. Therefore, the cooking appliance 100 has the beneficial effects of the control method of the cooking appliance 100 of any one of the above embodiments, and the description thereof is omitted here.

The cooking appliance 100 is a pressure cooker, rice cooker or other cooking appliance 100.

An embodiment of a fourth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the control method of the cooking appliance 100 of any of the above embodiments. Therefore, the computer readable storage medium has the beneficial effects of the control method of the cooking appliance 100 of any of the above embodiments, and is not described herein again.

In summary, in the control method of the cooking appliance 100 according to the embodiment of the present invention, the pressure sensor is not provided in the electric pressure cooker with negative pressure pumping function because the pressure sensor has a high cost. The time for pumping the negative pressure is preset, and the work and the stop of the air pumping device 3 are determined. The utility model provides a pressure cooker usable air exhaust device 3 operating time and the corresponding relation of negative pressure size in the culinary art chamber 6 set up negative pressure display module 23 at the upper cover, show the size of negative pressure value in the culinary art chamber 6. Namely, the negative pressure display module 23 is arranged on the upper cover and is related to the negative pressure pumping time, so that the negative pressure externalization in the cooking cavity 6 is realized.

The display of the pressure in the cooking cavity can be realized by arranging the display module, and the display module can be used for any stage of negative pressure pumping, such as a reservation stage, a pickling stage, a cooking stage and a heat preservation and fresh-keeping stage after the cooking stage is finished.

In the description of the present invention, the term "plurality" means two or more unless explicitly specified or limited otherwise; the terms "connected," "secured," and the like are to be construed broadly and 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

1. A method of controlling a cooking appliance, comprising:

controlling the display state of a display module of the cooking appliance according to the working condition of an air extractor of the cooking appliance, so that the display state of the display module corresponds to the pressure in a cooking cavity of the cooking appliance;

the method for controlling the display state of the display module of the cooking appliance according to the working condition of the air extractor of the cooking appliance so that the display state of the display module corresponds to the pressure in the cooking cavity of the cooking appliance specifically comprises the following steps:

when the air extracting device is started and continuously works, determining a preset interval of the working time of the air extracting device;

controlling the display state of the display module to correspond to a preset interval of the working time of the air extraction device;

when the air exhaust device works intermittently to enter a pressure maintaining stage, the display state of the display module is controlled to be unchanged;

when the air extracting device stops working and the exhaust valve is opened, controlling the display state of the display module to be a third state;

the control of the display state of the display module corresponds to the preset interval where the working time of the air extraction device is located, and specifically comprises the following steps:

when the working time of the air extracting device is in a first preset interval, controlling the display module to display a first state;

when the working time of the air extracting device is in a second preset interval, controlling the display module to display a second state;

the first preset interval and the second preset interval are sequentially arranged according to the sequence of the working time of the air extracting device, and the absolute value of the pressure represented by the first state is larger than the absolute value of the pressure represented by the second state.

2. The control method of a cooking appliance according to claim 1,

the working condition comprises at least one of start-stop condition, working time and working state.

3. The control method of a cooking appliance according to claim 1, wherein the pumping device is controlled to operate intermittently to enter the pressure maintaining stage when the operation time of the pumping device reaches a first preset time.

4. The method of claim 1, wherein the air-extracting device is controlled to stop working and the exhaust valve is controlled to open when the time of the pressure maintaining period reaches a second preset time.

5. The method for controlling a cooking appliance according to claim 1, wherein the method for controlling the display state of the display module of the cooking appliance according to the working condition of the air extractor of the cooking appliance so that the display state of the display module corresponds to the pressure in the cooking cavity of the cooking appliance specifically comprises:

when the air extracting device stops working and the exhaust valve is opened, determining a preset interval of the working time of the exhaust valve; and controlling the display state of the display module to correspond to the preset interval of the working time of the exhaust valve.

6. The control method of a cooking appliance according to claim 1 or 2,

the display module comprises an LED module, and the control of the display state of the display module of the cooking appliance specifically comprises: the display state of the display module is controlled by controlling the lighting number of the LEDs, and the lower the pressure in the cooking cavity is, the more the LEDs are controlled to be lighted, or the lower the pressure in the cooking cavity is, the less the LEDs are controlled to be lighted.

7. The control method of a cooking appliance according to claim 1 or 2,

the display module includes a display lamp, and controlling the display state of the display module of the cooking appliance specifically includes: the display state of the display module is controlled by controlling the flickering frequency of the display lamp, and the lower the pressure in the cooking cavity is, the lower or higher the flickering frequency of the display lamp is.

8. A control device of a cooking appliance, wherein the cooking appliance comprises a cooking appliance main body, an air extracting device and a display module, the air extracting device is 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, the display module is used for displaying the pressure 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 any one of claims 1 to 7.

9. A cooking appliance, characterized by comprising a processor for implementing the steps of a control method of a cooking appliance according to any one of claims 1 to 7 when executing a computer program stored in a memory.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements the steps of a method of controlling a cooking appliance as claimed in any one of claims 1 to 7.