Cooking appliance and cooking appliance control method

Abstract

The present invention discloses a cooking utensil and a control method for the cooking utensil, wherein the cooking utensil comprises: a pot body, wherein a cooking cavity is arranged in the pot body; a pot cover, wherein the pot cover is arranged on the pot body to open or close the cooking cavity; a cooking heating device, wherein the cooking heating device is arranged in the pot body to heat the cooking cavity; a vacuum pump, wherein the vacuum pump is arranged in the pot body or the pot cover and the vacuum pump has an air extraction port connected to the cooking cavity and an air exhaust port connected to the atmosphere; and a cleaning device for cleaning the vacuum pump using water or steam, wherein the cleaning device is arranged in the pot body or the pot cover. The cooking utensil according to the embodiment of the present invention has the advantages of high reliability, good cooking effect, and good cleaning effect of the vacuum pump.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliance manufacturing, and in particular to a cooking appliance and a cooking appliance control method. Background Art

[0002] Cooking appliances in the related art, such as rice cookers with vacuum functions, include a vacuum system for extracting gas from the cooking appliance. During cooking, water vapor, rice soup, oil vapor and other substances in the gas will be extracted along with the gas. Dirt dries, accumulates, and adheres to the vacuum system and is difficult to clean, which affects the normal operation of the vacuum system, easily breeds bacteria, produces odors, affects the cooking effect of the cooking appliance, and affects the user experience. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cooking utensil, which has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0004] The invention also provides a control method for the cooking appliance.

[0005] The present invention also provides another control method for a cooking appliance.

[0006] To achieve the above-mentioned purpose, a cooking utensil is provided according to an embodiment of the first aspect of the present invention, the cooking utensil comprising: a pot body, wherein a cooking cavity is provided in the pot body; a pot cover, wherein the pot cover is provided on the pot body to open or close the cooking cavity; a cooking heating device, wherein the cooking heating device is provided in the pot body to heat the cooking cavity; a vacuum pump, wherein the vacuum pump is provided in the pot body or the pot cover and the vacuum pump has an exhaust port connected to the cooking cavity and an exhaust port connected to the atmosphere; and a cleaning device for cleaning the vacuum pump using water or steam, wherein the cleaning device is provided in the pot body or the pot cover.

[0007] The cooking device according to the embodiment of the present invention has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0008] In addition, the cooking appliance according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, the cleaning device includes: a water storage tank, which is arranged on the pot cover or the pot body and is separated from the cooking cavity; a water suction pipe, one end of which is connected to the vacuum pump and the other end extends into the lower part of the water storage tank.

[0010] According to one embodiment of the present invention, the cleaning device includes: a water storage tank, which is arranged on the pot cover or the pot body and is separated from the cooking cavity, and the water storage tank is connected to the vacuum pump; a cleaning and heating device for heating the water storage tank, and the cleaning and heating device is arranged on the water storage tank.

[0011] According to one embodiment of the present invention, the cooking appliance further comprises a switching valve, the switching valve having a first inlet connected to the cooking cavity, a second inlet connected to the water storage tank, and an outlet connected to the vacuum pump, the switching valve being switchable between a cooking state and a cleaning state, when the switching valve is in the cooking state, the first inlet is connected to the outlet and the second inlet is disconnected from the outlet, when the switching valve is in the cleaning state, the second inlet is connected to the outlet and the first inlet is disconnected from the outlet.

[0012] According to one embodiment of the present invention, the vacuum pump is arranged in the pot cover or the pot body, the switching valve is arranged in the pot cover, the lower surface of the pot cover is provided with an exhaust hole connected to the cooking cavity, and the water storage tank is arranged in the pot body.

[0013] According to another embodiment of the present invention, the cleaning device includes a water pipe, the upper end of which is detachably mounted on the pot body and communicated with the air exhaust port, and the lower end of which is suitable for extending to the lower part of the cooking cavity.

[0014] According to an embodiment of the present invention, a mounting hole is provided on the pot cover, and the upper end of the water conduit is fitted in the mounting hole by threaded fit, snap fit or interference fit.

[0015] According to one embodiment of the present invention, an on-off valve is connected between the upper end of the water conduit and the air suction port of the vacuum pump.

[0016] According to another embodiment of the present invention, the cleaning device includes an external water pipe and a water cup, wherein the external water pipe is detachably mounted on the pot cover and one end of the external water pipe is connected to the air suction port, the water cup is suitable for storing water, and the other end of the external water pipe is suitable for extending into the water cup.

[0017] According to an embodiment of a second aspect of the present invention, a control method for a cooking appliance is provided, wherein the working stages of the cooking appliance at least include a cleaning stage and a cooking stage, the cooking appliance includes a pot body, a vacuum pump, a water storage tank, and a cleaning and heating device, the pot body is provided with a cooking cavity, the water storage tank is provided on the pot body and is separated from the cooking cavity, the cleaning and heating device is provided on the water storage tank to heat the water storage tank, the vacuum pump can be selectively connected to the water storage tank or the cooking cavity, and the control method includes the following steps:

[0018] During the cleaning stage, controlling the cleaning and heating device to heat the water storage tank;

[0019] Controlling the water storage tank to be connected to the vacuum pump and controlling the vacuum pump to be disconnected from the cooking chamber;

[0020] Controlling the operation of the vacuum pump;

[0021] After a predetermined time, stopping the heating device;

[0022] stopping the vacuum pump;

[0023] Control the water storage tank to be disconnected from the vacuum pump.

[0024] According to an embodiment of a third aspect of the present invention, a control method for a cooking appliance is provided, wherein the working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance comprises a pot body, a vacuum pump, a water storage tank and a water extraction pipe, wherein a cooking cavity is provided in the pot body, the water storage tank is provided on the pot body and is separated from the cooking cavity, the water extraction pipe extends into the lower part of the water storage tank, and the vacuum pump can be selectively connected to the water extraction pipe or the cooking cavity, and the control method comprises the following steps:

[0025] In the cleaning stage, the water extraction pipe is controlled to be connected with the vacuum pump and the vacuum pump is controlled to be disconnected from the cooking chamber;

[0026] Controlling the operation of the vacuum pump;

[0027] After a predetermined time, stopping the vacuum pump;

[0028] Control the water storage tank to be disconnected from the vacuum pump.

[0029] Specifically, the cooking appliance also includes a switching valve, which can be switched between a cooking state and a cleaning state. In the cooking state, the switching valve connects the cooking cavity and the vacuum pump and cuts off the water storage tank and the vacuum pump. In the cleaning state, the switching valve connects the water storage tank and the vacuum pump and cuts off the cooking cavity and the vacuum pump. In the cleaning stage, the cooking appliance controls the switching valve to switch to the cleaning state after the cleaning and heating device starts heating. In the cooking stage, the switching valve is controlled to switch to the cooking state.

[0030] According to the control method of the cooking appliance in the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0031] According to an embodiment of a fourth aspect of the present invention, a control method for a cooking appliance is provided, wherein the working stages of the cooking appliance at least include a cleaning stage and a cooking stage, the cooking appliance includes a pot body, a vacuum pump, a water extraction pipe and an on-off valve, the pot body is provided with a cooking cavity, one end of the water extraction pipe is connected to the vacuum pump through the on-off valve and the other end extends to the lower part of the cooking cavity, the control method includes:

[0032] During the cleaning stage, controlling the on-off valve to open;

[0033] Controlling the operation of the vacuum pump;

[0034] After a predetermined time, stopping the vacuum pump;

[0035] Close the on-off valve.

[0036] According to the control method of the cooking appliance in the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0037] According to an embodiment of a fifth aspect of the present invention, a control method for a cooking appliance is provided, wherein the working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance includes a pot body, a vacuum pump, an external water pipe and a water cup, wherein the external water pipe is detachably mounted on the pot cover and one end of the external water pipe is connected to the vacuum pump through the on-off valve, the water cup is suitable for storing water, and the other end of the external water pipe is suitable for extending into the water cup, and the control method includes:

[0038] During the cleaning stage, controlling the on-off valve to open;

[0039] Controlling the operation of the vacuum pump;

[0040] After a predetermined time, stopping the vacuum pump;

[0041] Close the on-off valve.

[0042] According to the control method of the cooking appliance in the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0043] According to an embodiment of a sixth aspect of the present invention, a control method for a cooking appliance is provided, wherein the working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance includes a pot body, a vacuum pump, a cooking heating device and an on-off valve, wherein the pot body has a cooking cavity, the cooking heating device is arranged in the pot body to heat the cooking cavity, and the on-off valve is respectively connected to the cooking cavity and the atmosphere, and the control method includes:

[0044] During the cleaning stage, controlling the on-off valve to open;

[0045] Controlling the cooking and heating device to operate;

[0046] Controlling the operation of the vacuum pump;

[0047] After a predetermined time, the cooking and heating device is stopped;

[0048] stopping the vacuum pump;

[0049] Control the on-off valve to close.

[0050] According to the control method of the cooking appliance in the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0051] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0053] Figure 1 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention.

[0054] Figure 2 yes Figure 1 Enlarged view of point D in the middle, where the switching valve is in the cooking state.

[0055] Figure 3 yes Figure 1 Enlarged view of point D in the middle, where the switching valve is in a clean state.

[0056] Figure 4 is a cross-sectional view of a cooking appliance according to another embodiment of the present invention.

[0057] Figure 5 yes Figure 4 Enlarged view of point E in the middle.

[0058] Figure 6 is a flow chart of a method for controlling a cooking appliance according to an embodiment of the present invention.

[0059] Figure 7 is a flow chart of a method for controlling a cooking appliance according to another embodiment of the present invention.

[0060] Figure numerals: cooking utensil 1, pot body 110, cooking cavity 101, pot cover 120, air extraction hole 121, mounting hole 122, external exhaust port 123, vacuum pump 200, air extraction port 201, exhaust port 202, water storage tank 310, cleaning and heating device 320, water pipe 330, switching valve 400, first inlet 401, second inlet 402, outlet 403, on-off valve 500, cleaning pipeline 610, air pipeline 620. DETAILED DESCRIPTION

[0061] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0062] Hereinafter, a cooking appliance 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0063] like Figure 1-Figure 7 As shown, the cooking appliance 1 according to the embodiment of the present invention includes a pot body 110, a pot cover 120, a cooking and heating device, a vacuum pump 200 and a cleaning device.

[0064] A cooking cavity 101 is provided in the pot body 110. A pot cover 120 is provided on the pot body 110 to open or close the cooking cavity 101. The cooking heating device is provided in the pot body 110 to heat the cooking cavity 101. A vacuum pump 200 is provided in the pot body 110 or the pot cover 120 and the vacuum pump 200 has an air suction port 201 connected to the cooking cavity 101 and an air exhaust port 202 connected to the atmosphere. The cleaning device cleans the vacuum pump 200 with water or steam, and the cleaning device is provided in the pot body 110 or the pot cover 120.

[0065] The working process of the cooking appliance 1 according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0066] When it is necessary to vacuum-dry the cooking ingredients, the vacuum pump 200 is turned on and starts to evacuate air. The gas in the cooking cavity 101 is discharged from the exhaust port 202 through the vacuum pump 200 , thereby achieving a vacuum effect in the cooking cavity 101 .

[0067] When the vacuum pump 200 needs to be cleaned, the cleaning device is first connected to the vacuum pump 200, and then the vacuum pump 200 is turned on. The vacuum pump 200 begins to extract water or steam through the cleaning device, and uses water or steam to flush and clean the vacuum pump 200, taking away the stubborn dirt in the vacuum pump 200, thereby achieving the cleaning effect of the vacuum pump 200.

[0068] According to the cooking appliance 1 of the embodiment of the present invention, by providing a vacuum pump 200, during the process of the cooking appliance 1 cooking food, the vacuum pump 200 can be used to extract the gas in the cooking cavity 101 into the atmosphere, so as to reduce the pressure in the cooking cavity 101, which not only facilitates the cooking appliance 1 to better cook the food, but also can preserve the food in the cooking cavity 101 under a low-pressure vacuum state to improve the preservation effect of the food, thereby facilitating the cooking appliance 1 to obtain a better cooking effect, improving the preservation effect of the cooking appliance 1 on the food, improving the cooking efficiency of the cooking appliance 1, and improving the user experience.

[0069] Furthermore, by providing the cleaning device, the cleaning device can be used to flush and clean the vacuum pump 200 with water or steam. Compared with the method of cleaning the vacuum pump with airflow, since the water flow or steam has the function of soaking and flushing, it is convenient to remove the stubborn dirt that is dried, accumulated, and adhered to the vacuum pump 200 and is difficult to remove by the airflow, so as to improve the cleaning effect and cleaning efficiency of the vacuum pump 200, avoid the accumulation of water vapor, oil and other dirt in the vacuum pump 200 to affect its normal operation, avoid the blockage of the pipeline of the equipment such as the vacuum pump 200, and facilitate the cleaning of the vacuum pump 200, so as to improve the cleanliness inside the vacuum pump 200, make the vacuum pump 200 work smoothly, and improve the working stability and reliability of the vacuum pump 200. At the same time, it can avoid the reduction of the vacuum pump 200's vacuuming capacity, avoid the vacuum pump 200 taking a long time to reach the target vacuum degree, and facilitate the improvement of the working efficiency of the vacuum pump 200, thereby facilitating the shortening of the cooking time of the cooking utensil 1, and further facilitating the improvement of the cooking efficiency of the cooking utensil 1.

[0070] In addition, by providing the cleaning device to flush and clean the vacuum pump 200, compared with the cooking utensils in the related art, it can avoid dirt from being retained in the pipelines of the vacuum pump 200 and other equipment for a long time, thereby causing bacteria to breed and produce odors, and can prevent the food from being contaminated during the cooking process, thereby facilitating the improvement of the reliability of the cooking utensil 1 in cooking food, facilitating the improvement of the cooking effect of the cooking utensil 1, facilitating the user's use, and improving the user's experience.

[0071] At the same time, by providing the cleaning device to flush and clean the vacuum pump 200, compared with the cooking utensils in the related art, it is possible to avoid erosion and damage to the vacuum pump 200 caused by dirt accumulated in the vacuum pump 200, thereby extending the service life of the vacuum pump 200, allowing the vacuum pump 200 to adapt to harsh environments such as high temperature and high humidity, thereby improving the applicability of the vacuum pump 200, reducing the maintenance frequency of the cooking utensil 1, and reducing the maintenance cost of the cooking utensil 1.

[0072] Therefore, the cooking appliance 1 according to the embodiment of the present invention has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0073] The following describes a cooking appliance 1 according to a specific embodiment of the present invention with reference to the accompanying drawings.

[0074] In some specific embodiments of the present invention, Figure 1-Figure 7 As shown, the cooking appliance 1 according to the embodiment of the present invention includes a pot body 110, a pot cover 120, a cooking and heating device, a vacuum pump 200 and a cleaning device.

[0075] According to an embodiment of the present invention, the cleaning device includes a water tank 310 and a water extraction pipe. The water tank 310 is disposed on the pot cover 120 or the pot body 110 and is separated from the cooking cavity 101. One end of the water extraction pipe is connected to the vacuum pump 200 and the other end extends into the lower part of the water tank 310. In this way, the water in the water tank 310 can be transported to the vacuum pump 200 through the water extraction pipe, so that the vacuum pump 200 can be cleaned with water. Since the water flow has the function of soaking and flushing, it is convenient to remove the dried, accumulated, and adhered food in the vacuum pump 200, and further improve the cleaning effect and cleaning efficiency of the vacuum pump 200.

[0076] According to another embodiment of the present invention, Figure 1 As shown, the cleaning device includes a water tank 310 and a cleaning heating device 320. The water tank 310 is arranged on the pot cover 120 or the pot body 110 and is separated from the cooking cavity 101. The water tank 310 is connected to the vacuum pump 200. The cleaning heating device 320 is used to heat the water tank 310. The cleaning heating device 320 is arranged on the water tank 310. In this way, the water in the water tank 310 can be heated by the cleaning heating device 320, so as to generate high-temperature steam, which is convenient for cleaning the vacuum pump 200 by using the high-temperature steam. Since the high-temperature steam has the functions of high-temperature decomposition, soaking, and flushing, it is convenient to remove the dried, accumulated, and adhered food in the vacuum pump 200, which is convenient for effectively cleaning the vacuum pump 200, and further convenient for improving the cleaning effect of the vacuum pump 200. At the same time, it can be avoided that the cleaning device affects the cooking cavity 101, and further convenient for improving the cooking effect of the cooking utensil 1.

[0077] Specifically, Figure 1As shown, the cooking appliance 1 further includes a switching valve 400, which has a first inlet 401 connected to the cooking cavity 101, a second inlet 402 connected to the water storage tank 310, and an outlet 403 connected to the vacuum pump 200. The switching valve 400 can be switched between a cooking state and a cleaning state. When the switching valve 400 is in the cooking state, the first inlet 401 is connected to the outlet 403 and the second inlet 402 is disconnected from the outlet 403. When the switching valve 400 is in the cleaning state, the second inlet 402 is connected to the outlet 403 and the first inlet 401 is disconnected from the outlet 403. In this way, when it is necessary to cook food, the switching valve 400 can be placed in the cooking state, and when it is necessary to clean the vacuum pump 200, the switching valve 400 can be placed in the cleaning state, so as to facilitate the switching of the functions of the cooking appliance 1 and improve the working performance of the cooking appliance 1.

[0078] Of course, the cleaning device may also have an opening and closing structure. When cooking food, the opening and closing structure is closed to disconnect the cleaning device from the vacuum pump 200. When cleaning the vacuum pump 200, the opening and closing structure is opened to connect the cleaning device to the vacuum pump 200.

[0079] More specifically, Figure 1-Figure 3 As shown, the vacuum pump 200 is disposed in the pot cover 120 or the pot body 110, the switching valve 400 is disposed in the pot cover 120, and the lower surface of the pot cover 120 is provided with an air extraction hole 121 (in the vertical direction as shown in FIG. Figure 1 and Figure 4 As shown by arrow A in the figure, the water storage tank 310 is arranged in the pot body 110. This facilitates the arrangement of the vacuum pump 200, the switching valve 400 and the cleaning device, not only facilitating the reduction of the influence of the high temperature and high humidity environment in the cooking cavity 101 on the vacuum pump 200 and the switching valve 400, further facilitating the improvement of the working performance of the vacuum pump 200 and the switching valve 400, but also preventing the water storage tank 310 from occupying the space in the pot cover 120, and avoiding the arrangement of the water storage tank 310 in the pot cover 120 affecting the arrangement of other structures.

[0080] Alternatively, if Figure 1 As shown, a cleaning pipeline 610 is connected between the water storage tank 310 and the second inlet 402 of the switching valve 400 to facilitate the transportation of water or steam in the water storage tank 310 to the switching valve 400 .

[0081] Specifically, a cleaning button is also provided on the pot cover 120, and the cleaning button is electrically connected to the controller of the cooking appliance 1. In this way, it is convenient to control the cleaning device to clean the vacuum pump 200 through the cleaning button.

[0082] The cleaning process of the cooking appliance 1 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0083] When the vacuum pump 200 needs to be cleaned, first add water to the water tank 310, start the cleaning button, and the cleaning heating device 320 heats the water in the water tank 310. Then, the switching valve 400 is switched to the cleaning state, and the vacuum pump 200 starts working to extract the steam generated by the water tank 310. The steam passes through the switching valve 400 and the vacuum pump 200 in turn and is discharged, thereby completing the cleaning process of the vacuum pump 200.

[0084] According to another embodiment of the present invention, Figure 4 As shown, the cleaning device includes a water pipe 330, the upper end of which is detachably mounted on the pot body 110 and communicated with the air extraction port 201, and the lower end of which is adapted to extend to the lower part of the cooking cavity 101. In this way, the water in the cooking cavity 101 can be transported to the vacuum pump 200 through the water pipe 330, so that the vacuum pump 200 can be cleaned with water. Since the water flow has the function of soaking and flushing, it is convenient to remove the dried, accumulated, and adhered food in the vacuum pump 200, further improving the cleaning effect and cleaning efficiency of the vacuum pump 200. At the same time, the water pipe 330 is detachably mounted on the pot body 110, so that the water pipe 330 can be removed during cooking and installed during cleaning, so that the water pipe 330 can be prevented from affecting the cooking food, so that the setting flexibility of the cleaning device can be improved, and the working performance of the cooking utensil 1 can be further improved.

[0085] Specifically, Figure 5 As shown, the pot cover 120 is provided with a mounting hole 122, and the upper end of the water pipe 330 is threadedly fitted, snap-fitted or interference-fitted in the mounting hole 122. This facilitates the positioning and setting of the water pipe 330, improves the stability and reliability of the connection of the water pipe 330, and further facilitates the water pipe 330 to smoothly transport the water in the cooking cavity 101 to the vacuum pump 200.

[0086] Optionally, the cooking heating device can be used to heat the water in the cooking cavity 101 to generate high-temperature hot water, and the high-temperature hot water can be used to clean the vacuum pump 200, thereby further improving the cleaning effect of the vacuum pump 200.

[0087] According to another specific embodiment of the present invention, the cooking heating device can be used to heat the water in the cooking cavity 101, and the generated steam is extracted by the vacuum pump 200 to clean the vacuum pump 200 using the steam, thereby further improving the cleaning effect of the vacuum pump 200.

[0088] Alternatively, if Figure 4 and Figure 5As shown, an on-off valve 500 is connected between the upper end of the water pipe 330 and the air suction port 201 of the vacuum pump 200. By controlling the opening and closing of the on-off valve 500, the connection or disconnection of the water pipe 330 and the vacuum pump 200 can be controlled, so as to control the formation of the water passage.

[0089] Specifically, Figure 4 As shown, the outer surface of the pot cover 120 is provided with an outer exhaust port 123 connected to the atmosphere, and the outer exhaust port 123 is connected to the exhaust port 202 through an air guide pipe 620.

[0090] The cleaning process of the cooking appliance 1 according to another embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0091] When it is necessary to clean the vacuum pump 200, water is first added to the cooking cavity 101, one end of the water pipe 330 is installed in the installation hole 122, and the other end of the water pipe 330 is extended into the water in the cooking cavity 101. The water in the cooking cavity 101 is heated by the cooking heating device, and the cleaning button is activated. The on-off valve 500 is opened, and the vacuum pump 200 starts working to pump out the water in the cooking cavity 101. The water passes through the on-off valve 500 and the vacuum pump 200 in turn and is discharged, thereby achieving the cleaning process of the vacuum pump 200.

[0092] According to another embodiment of the present invention, the cleaning device includes an external water pipe and a water cup, wherein the external water pipe is detachably mounted on the pot cover 120 and one end of the external water pipe is connected to the air extraction port 201, the water cup is suitable for storing water, and the other end of the external water pipe is suitable for extending into the water cup. In this way, not only can the water in the water cup be transported to the vacuum pump 200 through the external water pipe, so that the vacuum pump 200 can be flushed and cleaned by water flow, but also the additional cleaning device can be avoided in the cooking utensil 1, so that the cleaning device can be avoided from occupying the internal space of the cooking utensil 1.

[0093] According to another embodiment of the present invention, the cleaning device includes a water cup, which is suitable for storing water, and the water cup is detachably mounted on the pot cover 120 and is connected to the air extraction port 201. This facilitates the water in the water cup to be transported to the vacuum pump 200, so that the vacuum pump 200 can be flushed and cleaned by water flow.

[0094] The following describes a control method for a cooking appliance according to an embodiment of the present invention. The working stages of the cooking appliance at least include a cleaning stage and a cooking stage, the cooking appliance includes a pot body, a vacuum pump, a water storage tank, and a cleaning and heating device, a cooking cavity is provided in the pot body, the water storage tank is provided on the pot body and is separated from the cooking cavity, the cleaning and heating device is provided on the water storage tank to heat the water storage tank, the vacuum pump can be selectively connected to the water storage tank or the cooking cavity, and the control method includes the following steps:

[0095] During the cleaning stage, controlling the cleaning and heating device to heat the water storage tank;

[0096] Controlling the water storage tank to be connected to the vacuum pump and controlling the vacuum pump to be disconnected from the cooking chamber;

[0097] Controlling the operation of the vacuum pump;

[0098] After a predetermined time, stopping the heating device;

[0099] stopping the vacuum pump;

[0100] Control the water storage tank to be disconnected from the vacuum pump.

[0101] The following describes a control method for a cooking appliance according to another embodiment of the present invention. The working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance includes a pot body, a vacuum pump, a water storage tank and a water extraction pipe, the pot body is provided with a cooking cavity, the water storage tank is provided on the pot body and is separated from the cooking cavity, the water extraction pipe extends into the lower part of the water storage tank, the vacuum pump can be selectively connected to the water extraction pipe or the cooking cavity, and the control method includes the following steps:

[0102] In the cleaning stage, the water extraction pipe is controlled to be connected with the vacuum pump and the vacuum pump is controlled to be disconnected from the cooking chamber;

[0103] Controlling the operation of the vacuum pump;

[0104] After a predetermined time, stopping the vacuum pump;

[0105] Control the water storage tank to be disconnected from the vacuum pump.

[0106] Specifically, the cooking appliance also includes a switching valve, which can be switched between a cooking state and a cleaning state. In the cooking state, the switching valve connects the cooking cavity and the vacuum pump and cuts off the water storage tank and the vacuum pump. In the cleaning state, the switching valve connects the water storage tank and the vacuum pump and cuts off the cooking cavity and the vacuum pump. In the cleaning stage, the cooking appliance controls the switching valve to switch to the cleaning state after the cleaning and heating device starts heating. In the cooking stage, the switching valve is controlled to switch to the cooking state.

[0107] According to the control method of the cooking appliance in the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0108] The following describes a control method for a cooking appliance according to another embodiment of the present invention. The working stages of the cooking appliance at least include a cleaning stage and a cooking stage, the cooking appliance includes a pot body, a vacuum pump, a water extraction pipe and an on-off valve, a cooking cavity is provided in the pot body, one end of the water extraction pipe is connected to the vacuum pump through the on-off valve and the other end extends to the lower part of the cooking cavity, and the control method includes:

[0109] During the cleaning stage, controlling the on-off valve to open;

[0110] Controlling the operation of the vacuum pump;

[0111] After a predetermined time, stopping the vacuum pump;

[0112] Close the on-off valve.

[0113] The following describes a control method for a cooking appliance according to another embodiment of the present invention. The working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance includes a pot body, a vacuum pump, an external water pipe and a water cup, the external water pipe is detachably mounted on the pot cover and one end of the external water pipe is connected to the vacuum pump through the on-off valve, the water cup is suitable for storing water, and the other end of the external water pipe is suitable for extending into the water cup, and the control method includes:

[0114] During the cleaning stage, controlling the on-off valve to open;

[0115] Controlling the operation of the vacuum pump;

[0116] After a predetermined time, stopping the vacuum pump;

[0117] Close the on-off valve.

[0118] The following describes a control method for a cooking appliance according to another embodiment of the present invention. The working stages of the cooking appliance at least include a cleaning stage and a cooking stage, and the cooking appliance includes a pot body, a vacuum pump, a cooking heating device, and an on-off valve, the pot body has a cooking cavity, the cooking heating device is arranged in the pot body to heat the cooking cavity, the on-off valve is connected to the cooking cavity and the atmosphere, and the control method includes:

[0119] During the cleaning stage, controlling the on-off valve to open;

[0120] Controlling the cooking and heating device to operate;

[0121] Controlling the operation of the vacuum pump;

[0122] After a predetermined time, the cooking and heating device is stopped;

[0123] stopping the vacuum pump;

[0124] The on-off valve is controlled to be closed. According to the control method of the cooking appliance of the embodiment of the present invention, the cooking appliance has the advantages of high reliability, good cooking effect and good cleaning effect of the vacuum pump.

[0125] Other structures and operations of the cooking appliance 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0126] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0127] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0128] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0129] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0130] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooking utensil, characterized in that: include: A pot body, wherein a cooking cavity is provided in the pot body; A pot cover, the pot cover is arranged on the pot body to open or close the cooking cavity; A cooking heating device, the cooking heating device is arranged in the pot body to heat the cooking cavity; A vacuum pump, the vacuum pump being arranged in the pot body or the pot cover and having an air extraction port communicating with the cooking cavity and an air exhaust port communicating with the atmosphere; A cleaning device for cleaning the vacuum pump using water or steam, wherein the cleaning device is arranged in the pot body or the pot cover; The cleaning device is a water storage tank; the cleaning device also includes a switching valve, the switching valve having a first inlet connected to the cooking cavity, a second inlet connected to the water storage tank, and an outlet connected to the vacuum pump, the switching valve can be switched between a cooking state and a cleaning state, when the switching valve is in the cooking state, the first inlet is connected to the outlet and the second inlet is disconnected from the outlet, when the switching valve is in the cleaning state, the second inlet is connected to the outlet and the first inlet is disconnected from the outlet; wherein a cleaning pipeline is connected between the water storage tank and the second inlet of the switching valve, the cleaning pipeline is used to transport water or steam in the water storage tank to the switching valve; Or the cleaning device includes a water pipe, the upper end of which is detachably mounted on the pot body of the cooking utensil and connected to the air exhaust port, the lower end of which is suitable for extending to the lower part of the cooking cavity, and the outer surface of the pot cover is provided with an external exhaust port connected to the atmosphere, and the external exhaust port is connected to the exhaust port through an air guide pipe.

2. The cooking device according to claim 1, characterized in that: When the cleaning device includes the water storage tank, the cleaning device further includes: The water storage tank is arranged on the pot cover or the pot body and is separated from the cooking cavity; A water pumping pipe, one end of which is connected to the vacuum pump and the other end of which extends into the lower part of the water storage tank.

3. The cooking device according to claim 1, characterized in that: When the cleaning device includes the water storage tank, the cleaning device further includes: The water storage tank is arranged on the pot cover or the pot body and is separated from the cooking cavity, and the water storage tank is connected to the vacuum pump; A cleaning and heating device for heating the water storage tank, wherein the cleaning and heating device is arranged on the water storage tank.

4. The cooking device according to claim 1, characterized in that: When the cleaning device includes the water storage tank, the vacuum pump is arranged in the pot cover or the pot body, the switching valve is arranged in the pot cover, the lower surface of the pot cover is provided with an exhaust hole connected to the cooking cavity, and the water storage tank is arranged in the pot body.

5. The cooking device according to claim 1, characterized in that: When the cleaning device includes the water conduit, a mounting hole is provided on the pot cover, and the upper end of the water conduit is threadedly fitted, snap-fitted or interference-fitted in the mounting hole.

6. The cooking device according to claim 1, characterized in that: When the cleaning device includes the water conduit, an on-off valve is connected between the upper end of the water conduit and the air suction port of the vacuum pump.

7. A method for controlling a cooking appliance, wherein the working phases of the cooking appliance at least include a cleaning phase and a cooking phase, characterized in that: The cooking appliance comprises a pot body, a vacuum pump, a water storage tank, and a cleaning and heating device. The pot body is provided with a cooking cavity. The water storage tank is provided on the pot body and is separated from the cooking cavity. The cleaning and heating device is provided on the water storage tank to heat the water storage tank. The vacuum pump can be selectively connected to the water storage tank or the cooking cavity. The control method comprises the following steps: During the cleaning stage, controlling the cleaning and heating device to heat the water storage tank; Controlling the water storage tank to be connected to the vacuum pump and controlling the vacuum pump to be disconnected from the cooking chamber; Controlling the operation of the vacuum pump; After a predetermined time, stopping the cleaning and heating device; stopping the vacuum pump; Control the water storage tank to be disconnected from the vacuum pump.

8. A method for controlling a cooking appliance, wherein the working phases of the cooking appliance at least include a cleaning phase and a cooking phase, characterized in that: The cooking device comprises a pot body, a vacuum pump, a water storage tank and a water extraction pipe, wherein a cooking cavity is arranged in the pot body, the water storage tank is arranged on the pot body and is separated from the cooking cavity, the water extraction pipe extends into the lower part of the water storage tank, the vacuum pump can be selectively connected to the water extraction pipe or the cooking cavity, and the control method comprises the following steps: In the cleaning stage, the water extraction pipe is controlled to be connected with the vacuum pump and the vacuum pump is controlled to be disconnected from the cooking chamber; Controlling the operation of the vacuum pump; After a predetermined time, stopping the vacuum pump; Controlling the water storage tank to be disconnected from the vacuum pump; The cooking appliance further includes a switching valve, which can be switched between a cooking state and a cleaning state. In the cooking state, the switching valve connects the cooking cavity and the vacuum pump and cuts off the water storage tank and the vacuum pump. In the cleaning state, the switching valve connects the water storage tank and the vacuum pump and cuts off the cooking cavity and the vacuum pump. In the cleaning stage, the cooking appliance controls the switching valve to switch to the cleaning state after the cleaning and heating device starts heating. In the cooking stage, the switching valve is controlled to switch to the cooking state.

9. A method for controlling a cooking appliance, wherein the working phases of the cooking appliance at least include a cleaning phase and a cooking phase, characterized in that: The cooking appliance comprises a pot body, a vacuum pump, a water extraction pipe and an on-off valve, wherein a cooking cavity is arranged in the pot body, one end of the water extraction pipe is connected with the vacuum pump through the on-off valve and the other end extends to the lower part of the cooking cavity, and the control method comprises: During the cleaning stage, controlling the on-off valve to open; Controlling the operation of the vacuum pump; After a predetermined time, stopping the vacuum pump; Close the on-off valve.

10. A method for controlling a cooking appliance, wherein the working phases of the cooking appliance at least include a cleaning phase and a cooking phase, characterized in that: The cooking appliance comprises a pot body, a vacuum pump, a cooking heating device and an on-off valve, wherein the pot body has a cooking cavity, the cooking heating device is arranged in the pot body to heat the cooking cavity, the on-off valve is respectively connected to the cooking cavity and the atmosphere, and the control method comprises: During the cleaning stage, controlling the on-off valve to open; Controlling the cooking and heating device to operate; Controlling the operation of the vacuum pump; After a predetermined time, the cooking and heating device is stopped; stopping the vacuum pump; Control the on-off valve to close.

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