Steam valve, pot cover, cooking utensil, control method of cooking utensil and readable storage medium

Abstract

The invention discloses a steam valve, a pot cover, a cooking utensil, a control method of the cooking utensil and a readable storage medium, the steam valve comprises a valve body and a valve mechanism, a steam channel and an air blowing channel are formed in the valve body, and an air outlet hole communicated with the steam channel and the air blowing channel is formed in the valve body; a steam inlet communicated with the steam channel is formed in the valve body; the valve mechanism comprises a driving device and a sealing piece, the sealing piece is movably arranged in the valve body, and the driving device drives the sealing piece to move so as to open or close the steam inlet. According to the technical scheme, the valve mechanism of the steam valve is used for controlling opening and closing of the steam inlet, the micro-pressure cooking effect of the cooking utensil is achieved, the taste of cooked food materials is improved, and the practicability and reliability of the steam valve are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking appliances, and particularly to a steam valve, a pot lid, a cooking appliance, a control method thereof, and a readable storage medium. Background Art

[0002] In the related art, a cooking appliance may be provided with a blast channel in the steam valve of the pot lid. By using an air outlet hole that connects the blast channel and the steam channel, the low-temperature air flow in the blast channel can flow into the steam channel to cool down the water vapor, reducing the temperature and the amount of steam discharged into the indoor environment through the steam valve, and realizing the discharge of trace or low-temperature steam of the cooking appliance.

[0003] However, using the blast channel to introduce low-temperature air flow into the steam channel to cool the water vapor easily accelerates the discharge of the water vapor in the pot body under the turbulent flow action of the low-temperature fluid flowing in the steam channel, reducing the stagnation of the water vapor in the pot body, resulting in a small change in the air pressure in the pot body during cooking, and the food materials in the pot cannot roll well when the liquid boils, causing the cooking appliance to easily stick and agglomerate when cooking foods such as rice and coarse grains, and affecting the taste of the food materials after cooking. Summary of the Invention

[0004] The main object of the present invention is to provide a steam valve, a pot lid, a cooking appliance, a control method thereof, and a readable storage medium, aiming to control the opening and closing of the steam inlet by the valve mechanism of the steam valve, realizing the micro-pressure cooking effect of the cooking appliance, improving the taste of the food materials after cooking, and further improving the practicability and reliability of the steam valve.

[0005] To achieve the above object, the steam valve proposed by the present invention includes a valve body and a valve mechanism. A steam channel and a blast channel are formed in the valve body. An air outlet hole connecting the steam channel and the blast channel is provided in the valve body, and a steam inlet connecting the steam channel is provided on the valve body. The valve mechanism includes a driving device and a sealing member. The sealing member is movably provided in the valve body, and the driving device drives the sealing member to move to open or close the steam inlet.

[0006] Optionally, the sealing member is movably provided along the direction towards or away from the air outlet hole and the steam inlet, and opens or closes the air outlet hole and / or the steam inlet during the movement.

[0007] Optionally, the air outlet hole and the steam inlet are coaxially arranged and are respectively provided on two opposite inner walls of the valve body, and the sealing member moves along the central axis of the air outlet hole and the steam inlet.

[0008] Optionally, a sealing plug body is connected to the end of the sealing member, and an elastic sealing ring is disposed around the outer peripheral side of the sealing plug body. The elastic sealing ring is used to abut against the inner wall of the air outlet hole, and the end face of the sealing plug body is used to abut against the inner wall of the valve body and cover the steam inlet.

[0009] Optionally, the driving device includes a guiding slider, and a transmission inclined surface is formed on one side of the guiding slider. The end of the sealing member facing away from the sealing plug body abuts against the transmission inclined surface and is driven by the transmission inclined surface to open or close the air outlet hole and / or the steam inlet.

[0010] Optionally, the transmission inclined surface includes a first inclined surface and a second inclined surface, and the first inclined surface and the inclined surface are arranged in sequence along the moving direction of the sealing member. The first inclined surface drives the sealing member to open or close the air outlet hole, and the second inclined surface drives the sealing member to open or close the steam inlet.

[0011] Optionally, a connection hole is provided on the outer periphery of the sealing member, and the guiding slider is movably inserted through the connection hole, and the transmission inclined surface abuts against the inner wall of the connection hole.

[0012] Optionally, a guiding hole is provided on the inner wall of the valve body, the sealing member is movably inserted through the guiding hole, and the guiding slider is disposed on a side of the guiding hole facing away from the air outlet hole.

[0013] Optionally, the sealing member includes a first sealing structure and a second sealing structure, the first sealing structure is used to open or close the steam inlet; the second sealing structure is used to open or close the air outlet hole.

[0014] Optionally, the steam valve further includes a blowing device, and the blowing device is disposed on one side of the valve body and communicates with the blowing channel.

[0015] The present invention also provides a pot lid, which includes a lid body and a steam valve, the steam valve is the steam valve described above, and the steam valve is disposed in the lid body.

[0016] The present invention also provides a cooking appliance, which includes a pot body and a pot lid, the pot lid is the pot lid described above, and the pot lid is used to open or cover the pot body.

[0017] The present invention also provides a control method for a cooking appliance, including the following steps:

[0018] Detect that the cooking appliance is in a boiling state;

[0019] After controlling the driving device to drive the sealing member to seal the steam inlet for a first preset time, open the steam inlet.

[0020] Optionally, after the control driving device drives the seal to seal the steam inlet for a first preset time, the step of opening the steam inlet includes:

[0021] After the control driving device drives the seal to seal the steam inlet for a first preset time, open the steam inlet, and close and open the steam inlet in a cycle after a first preset interval time.

[0022] Optionally, after the control driving device drives the seal to seal the steam inlet for a first preset time, the step of opening the steam inlet includes:

[0023] After the control driving device drives the seal to seal the air outlet hole and the steam inlet for a first preset time, open the steam inlet and the air outlet hole.

[0024] Optionally, before the step of detecting that the cooking appliance is in a boiling state, it includes:

[0025] Detect that the cooking appliance is in a water absorption heating state;

[0026] Turn on the air blowing device, and the control driving device drives the seal to open the air outlet hole and the steam inlet.

[0027] Optionally, after the step of after the control driving device drives the seal to seal the steam inlet for a first preset time and then opens the steam inlet, it includes:

[0028] Detect that the cooking appliance is in a rice simmering and heat preservation state;

[0029] After the control driving device drives the seal to seal the steam inlet for a second preset time, open the steam inlet.

[0030] Optionally, the step of after the control driving device drives the seal to seal the steam inlet for a second preset time and then opens the steam inlet includes:

[0031] After the control driving device drives the seal to seal the steam inlet for a second preset time, open the steam inlet, and close and open the steam inlet in a cycle after a second preset interval time.

[0032] The present invention also proposes a readable storage medium, on which a control program of a cooking appliance is stored, and when the control program of the cooking appliance is executed by a processor, the steps of the above-mentioned control method of the cooking appliance are realized.

[0033] The technical solution of the present invention drives the sealing member to close the steam inlet for a period of time through cyclic control and then opens the steam inlet, which can enable the cooking appliance to achieve a certain micro-pressure cooking effect during this process, so that the ingredients can be fully stirred by the sudden change of air pressure during the boiling process, effectively reducing the adhesion and caking between the ingredients, enabling the cooking appliance to have a distinct cooking effect when cooking ingredients such as rice and coarse grains, effectively improving the taste of the ingredients after cooking, improving the cooking effect of the cooking appliance, and further improving the practicability and reliability of the steam valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0035] Figure 1 Top view of an embodiment of the steam valve of the present invention;

[0036] Figure 2 For Figure 1 Partial enlarged view of part A in

[0037] Figure 3 For Figure 1 Cross-sectional view taken along line B-B in

[0038] Figure 4 Top view of an embodiment of the pot lid of the present invention;

[0039] Figure 5 For Figure 4 Cross-sectional view taken along line C-C in

[0040] Figure 6 For Figure 5 Partial enlarged view of the sealing member opening the air outlet hole and the steam inlet at position E in an embodiment of

[0041] Figure 7 For Figure 5 Partial enlarged view of the sealing member closing the air outlet hole at position E in an embodiment of

[0042] Figure 8 For Figure 5 Partial enlarged view of the sealing member closing the air outlet hole and the steam inlet at position E in an embodiment of

[0043] Figure 9 For Figure 4 Cross-sectional view taken along line D-D in

[0044] Figure 10 ForFigure 9 Partial enlarged view at F in the middle;

[0045] Figure 11 Schematic diagram of the architecture of the hardware operating environment of an embodiment of the cooking appliance of the present invention;

[0046] Figure 12 Schematic flow chart of an embodiment of the cooking appliance of the present invention.

[0047] Explanation of the reference numerals in the drawings:

[0048]

[0049]

[0050] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0053] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0054] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] In the related art, a cooking appliance can be provided with a blast channel in the steam valve of the pot lid. By using the air outlet hole connecting the blast channel and the steam channel, the low-temperature air flow in the blast channel can flow into the steam channel to cool the water vapor, reducing the temperature and the amount of steam of the water vapor discharged into the indoor environment through the steam valve, and realizing the discharge of trace or low-temperature steam of the cooking appliance. However, using the blast channel to introduce low-temperature air flow into the steam channel to cool the water vapor easily accelerates the discharge of the water vapor in the pot body under the action of the turbulent flow of the low-temperature fluid flowing in the steam channel, reducing the stagnation of the water vapor in the pot body, resulting in a relatively small change in the air pressure in the pot body during cooking, and the food ingredients in the pot cannot roll well when the liquid boils, causing the cooking appliance to easily stick and agglomerate when cooking foods such as rice and coarse grains, affecting the taste of the ingredients after cooking. To address the above problems, the present invention proposes a steam valve 100.

[0056] Referring to Figures 1 to 12 , in an embodiment of the present invention, the steam valve 100 includes a valve body 10 and a valve mechanism 30. A steam channel 11 and a blast channel 13 are formed in the valve body 10. An air outlet hole 131 connecting the steam channel 11 and the blast channel 13 is provided in the valve body 10, and a steam inlet 111 communicating with the steam channel 11 is provided on the valve body 10. The valve mechanism 30 includes a driving device 31 and a seal 33. The seal 33 is movably provided in the valve body 10, and the driving device 31 drives the seal 33 to move to open or close the steam inlet 111.

[0057] It can be understood that the cooking appliance can be an electric rice cooker, a pressure cooker, a steamer, etc. Generally, the cooking pot can include a pot body for heating and cooking food ingredients and a lid 200 that covers the pot body to form a closed cooking pot, so that the cooking appliance can stably and reliably complete the cooking operation on the food ingredients and meet the user's usage requirements. Among them, during the process of heating the food ingredients in the pot body, when the moisture in the food ingredients is heated to a certain temperature, water vapor will be generated and fill the pot body, causing the air pressure in the pot body to gradually rise as the water vapor increases. At this time, when the cooking appliance is a pressure cooker, the effect of pressure cooking can be achieved by means of the increase in the pressure inside the pot. Usually, a steam valve 100 can be provided on the lid 200. The steam inlet 111 of the steam valve 100 can be provided on the side of the lid 200 facing the pot body, or the steam inlet 111 can be provided on the sealing pressing plate that seals and covers the pot opening of the pot body by the lid 200, and the sealing pressing plate is used to cover the open end of the steam valve 100 that communicates with the steam channel 11, so that water vapor can enter the steam channel 11 of the steam valve 100 through the steam inlet 111; then, by providing a steam outlet 113 on the surface of the lid 200 that communicates with the steam channel 11 of the steam valve 100, or by exposing the steam outlet 113 of the steam valve 100 on the surface of the lid 200, the steam valve 100 can be used to drain and discharge the water vapor generated in the pot body, so that the cooking appliance can better maintain the air pressure in the pot body within the required adjusted air pressure range for cooking and ensure the stable operation of the cooking appliance.

[0058] In the steam valve 100, a partition can be used to separate and form a steam channel 11 and a blast channel 13. The steam channel 11 is communicated with the steam inlet 111 and the steam outlet 113 on the steam valve 100, so that the water vapor generated in the pot body can be discharged into the environment where the cooking appliance is located through the steam channel 11; an air outlet hole 131 communicating the steam channel 11 and the blast channel 13 can be opened on the partition separating the steam channel 11 and the blast channel 13, so that when a low-temperature air flow is introduced into the blast channel 13, it can flow into the steam channel 11 through the air outlet hole 131. Among them, when the cooking appliance cooks food ingredients such as rice or coarse grains, the heating and cooking process of the cooking appliance can include a water absorption heating process, a boiling process, and a heat preservation and simmering process. During the water absorption heating process, as the temperature of the food ingredients gradually rises, the rate of water absorption of the food ingredients is accelerated. At this time, by making the low-temperature air flow flow from the blast channel 13 into the steam channel 11 through the air outlet hole 131, the low-temperature air flow can enter the pot body from the steam inlet 111 of the steam valve 100, and the air flow can carry away the stale smell released by the food ingredients in the pot during the heating process and then enter the steam channel 11 from the steam inlet 111 and be discharged outside the cooking appliance from the steam outlet 113. This stale smell may be generated due to the long storage time of the food ingredients, and thus the stale smell mixed in the cooked food ingredients can be effectively reduced, and the flavor of the cooked food ingredients can be further improved.

[0059] As the water absorption and heating process continues, when the temperature inside the pot reaches the temperature at which water evaporates to form water vapor, water vapor will continuously be generated inside the pot. The water vapor accumulates and rises inside the pot and can enter the steam channel 11 through the steam inlet 111. This process of generating water vapor can continue until the boiling stage. At this time, by introducing a low-temperature air current with a relatively low temperature into the air supply channel 13, the low-temperature air current can flow from the air supply channel 13 into the steam channel 11 through the air outlet holes 131, so that the low-temperature air current can mix with the high-temperature water vapor in the steam channel 11, realizing the cooling of the water vapor by the steam valve 100. Furthermore, the temperature of the water vapor discharged from the steam outlet 113 of the steam valve 100 can be reduced, or most of the water vapor can be cooled and condensed inside the steam valve 100, reducing the amount of water vapor discharged from the steam valve 100, achieving low-temperature steam discharge or micro-steam discharge of the cooking appliance, which is beneficial to better reducing the impact of the high-temperature and high-humidity water vapor discharged by the cooking appliance on the indoor environment and users, and improving the practicability and reliability of the steam valve 100.

[0060] While a low-temperature air flow is continuously supplied into the steam channel 11 to cool the water vapor, a certain turbulent flow effect can be formed in the steam valve 100 by the flow of the low-temperature air flow, which can well promote the water vapor generated in the pot body to quickly flow towards the steam inlet 111 and accelerate the discharge of the water vapor in the pot body. In the present application, by providing a valve mechanism 30 in the valve body 10, the driving device 31 of the valve mechanism 30 can be used to drive the seal 33 to move in the valve body 10, so as to realize the opening or closing of the steam inlet 111 by the seal 33. Among them, the seal 33 can be a plunger or a baffle, and the driving device 31 can be a push rod device or a motor device, etc., so that the driving device 31 can drive the seal 33 to move in the direction towards or away from the steam inlet 111 to open or close the steam inlet 111, thereby achieving a better cooking effect. When the cooking appliance operates to the boiling process, at this time, the water in the pot will continuously generate water vapor under the action of high temperature. At this time, after controlling the driving device 31 to drive the seal 33 to close the steam inlet 111 for a period of time, then controlling the driving device 31 to drive the seal 33 to move away from and open the steam inlet 111, during the process of the seal 33 closing the steam inlet 111, the generated water vapor in the pot body can be blocked in the pot body, so that the air pressure in the pot body continuously increases. Then, when the air pressure in the pot increases to a certain value, the steam inlet 111 is suddenly opened, so that the accumulated water vapor in the pot body can quickly escape from the steam inlet 111. At this time, the air pressure in the pot will rapidly decrease with the rapid discharge of the water vapor. Then, under the action of the sudden change of the air pressure in the pot, the ingredients and liquid in the pot can be well caused to roll, so that the ingredients can be scattered during the rolling process. Therefore, by repeatedly controlling the seal 33 to close the steam inlet 111 for a period of time and then open the steam inlet 111, the cooking appliance can achieve a certain micro-pressure cooking effect in this process, so that the ingredients can be fully stirred by the sudden change of the air pressure during the boiling process, effectively reducing the adhesion and caking between the ingredients, so that the cooking appliance can have a distinct cooking effect when cooking ingredients such as rice and coarse grains, effectively improving the taste of the ingredients after cooking, improving the cooking effect of the cooking appliance, and further improving the practicability and reliability of the steam valve 100.

[0061] Among them, when the seal 33 closes the steam inlet 111, the low-temperature air flow in the air duct 13 can be maintained inside the steam valve 100, so that when the seal 33 opens the steam inlet 111, the water vapor can be quickly cooled by the low-temperature air flow; alternatively, the low-temperature air flow in the air duct 13 can be closed after the seal 33 closes the steam inlet 111, and the low-temperature air flow introduced into the air duct 13 can be restored when the seal 33 is about to open the steam inlet 111 after closing the steam inlet 111 for a period of time, which is beneficial to reducing the power consumption of the steam valve 100 when the steam inlet 111 is closed, and enabling the water vapor to be quickly cooled by the low-temperature air flow when the steam inlet 111 is opened, ensuring the stable operation of the steam valve 100.

[0062] In addition, when the cooking appliance enters the heat preservation and simmering process, the temperature inside the pot body will gradually drop to the heat preservation temperature of the ingredients at this time, the generation of water vapor slows down, but the moisture in the ingredients will still continue to volatilize. At this time, by controlling the driving device 31 to drive the seal 33 to close the steam inlet 111 for a period of time and then open the steam inlet 111, the moisture volatilized from the ingredients during the process of the seal 33 closing the steam inlet 111 can be locked in the pot body, so that the volatilized water vapor can re-permeate into the ingredients, achieving the effect of locking water and heat preservation of the ingredients, reducing the moisture loss of the ingredients during long-term storage, and further improving the cooking effect of the cooking appliance. By opening the steam inlet 111 at intervals for a period of time, the air pressure inside the pot body can be prevented from increasing and squeezing the cooked ingredients, ensuring the integrity of the ingredients, so that the ingredients can maintain a good taste and appearance even under long-term heat preservation, and further improving the practicality and reliability of the cooking appliance.

[0063] Referring to Figures 3 to 8 , in an embodiment of the present invention, the seal 33 is movably arranged along the direction towards or away from the air outlet hole 131 and the steam inlet 111, and the air outlet hole 131 and / or the steam inlet 111 is opened or closed during the movement.

[0064] In this embodiment, the air outlet hole 131 and the steam inlet 111 can be oppositely arranged along the direction in which water vapor enters the steam inlet 111. At this time, the seal 33 can be a piston structure that moves toward or away from the air outlet hole 131 and the steam inlet 111. By arranging the air outlet hole 131 and the steam inlet 111 in sequence on the movement path of the seal 33, the seal 33 can be driven by the driving device 31 to close the air outlet hole 131 and the steam inlet 111 in sequence, or open the steam inlet 111 and the air outlet hole 131 in sequence, so as to realize the opening and closing of the air outlet hole 131 and the steam inlet 111 by the seal 33. Among them, the seal 33 can be a piston structure with a length greater than the distance between the air outlet hole 131 and the steam inlet 111, so that the seal 33 can simultaneously close the air outlet hole 131 and the steam inlet 111, or can only open the steam inlet 111 and close the air outlet hole 131, or can simultaneously open the steam inlet 111 and the air outlet hole 131, realizing more control effects of the steam valve 100.

[0065] By opening or closing the air outlet hole 131 during the movement of the seal 33, during the water absorption and heating process and the boiling process, first make the seal 33 move toward the air outlet hole 131 and stably close the air outlet hole 131 to separate the air blowing channel 13 from the steam channel 11; then stably introduce low-temperature air flow into the air blowing channel 13 and then control the seal 33 to move away from the air outlet hole 131 and then stably open the air outlet hole 131, so that the low-temperature air flow can stably enter the steam channel 11 to cool the water vapor. At this time, the continuous flow of the low-temperature air flow through the air outlet hole 131 can well prevent the water vapor from flowing back into the air blowing channel 13. When it is necessary to stop cooling and condensing the water vapor, the low-temperature air flow in the air blowing channel 13 and the steam channel 11 can be maintained first, then the seal 33 is controlled to move toward the air outlet hole 131 and stably close the air outlet hole 131, and then the low-temperature air flow into the air blowing channel 13 is stopped, preventing the residual water vapor in the steam channel 11 from flowing back into the air blowing channel 13. Furthermore, during the cooking process of the cooking appliance, by using the seal 33 to open or close the air outlet hole 131, it can well prevent the water vapor from flowing back into the air blowing channel 13 to form condensed water and accumulate in the air blowing channel 13 when the low-temperature air flow is switched on and off in the air blowing channel 13, which is beneficial to avoiding the moisture damage of the components in the air blowing channel 13, reducing the maintenance and repair times of the steam valve 100, ensuring the stable operation of the steam valve 100, and improving the overall structural stability and reliability of the steam valve 100.

[0066] Furthermore, by using the seal 33 that can open or close the air outlet hole 131 and the steam inlet 111 during movement, it is possible to prevent water vapor from flowing back into the air duct 13 during the cooking process of the cooking appliance to prevent the formation of a humid environment in the air duct 13, reduce the damage of components in the air duct 13 due to moisture, and at the same time, the seal 33 can be used to control the opening and closing of the steam inlet 111 to achieve micro-pressure cooking of the cooking appliance, further improving the structural stability and reliability of the steam valve 100.

[0067] In addition, when the cooking appliance enters the boiling stage, the low-temperature air flow introduced through the air duct 13 can enter the steam duct 11 and flow back into the pot body through the steam valve 100 or the steam inlet 111 on the lid 200 to cool and break the foam generated in the pot body, enabling the cooking appliance to achieve a better cooking effect. At this time, after the defoaming treatment is completed, by closing the air outlet hole 131 with the seal 33 and then stopping the low-temperature air flow from entering the air duct 13, it is possible to effectively prevent the rice soup that has boiled and surged into the steam duct 11 from flowing back into the air duct 13, further preventing the accumulation of liquid in the air duct 13, ensuring the normal operation of each component in the air duct 13, and further improving the structural stability and reliability of the steam valve 100.

[0068] Refer to Figures 6 to 8 , in an embodiment of the present invention, the air outlet hole 131 and the steam inlet 111 are coaxially arranged and are respectively provided on two opposite inner walls of the valve body 10, and the seal 33 moves along the central axis of the air outlet hole 131 and the steam inlet 111.

[0069] In this embodiment, the thickness direction of the lid 200 can be the overall height direction of the cooking appliance. At this time, by coaxially arranging the air outlet hole 131 and the steam inlet 111 on two opposite inner walls of the valve body 10, and making the central axes of the air outlet hole 131 and the steam inlet 111 parallel to the thickness direction of the lid 200, further, by making the seal 33 move along the central axis direction of the air outlet hole 131 and the steam inlet 111, the seal 33 can vertically move along the height direction in the valve body 10 to sequentially close or open the air outlet hole 131 and the steam inlet 111. By making the seal 33 move along the central axis of the air outlet hole 131 and the steam inlet 111 to open and close the air outlet hole 131 and the steam inlet 111, it is possible to effectively reduce the movement path of the seal 33 in the valve body 10, enabling the seal 33 to more quickly open and close the air outlet hole 131 and the steam inlet 111, reducing the opening and closing delay of the seal 33, ensuring the stable operation of the steam valve 100, and further improving the structural stability and reliability of the steam valve 100.

[0070] Refer to Figures 6 to 8, in an embodiment of the present invention, a sealing plug body 331 is connected to the end of the seal 33. An elastic sealing ring 3311 is disposed around the outer peripheral side of the sealing plug body 331. The elastic sealing ring 3311 is used to abut against the inner wall of the air outlet hole 131, and the end face of the sealing plug body 331 is used to abut against the inner wall of the valve body 10 and cover the steam inlet 111.

[0071] In this embodiment, the seal 33 may include a connecting rod and a sealing plug body 331. At this time, the sealing plug body 331 may be installed at one end of the connecting rod, and the driving device 31 is connected to the other end of the connecting rod. The driving device 31 is used to drive the connecting rod to move up and down, driving the sealing plug body 331 to move toward or away from the air outlet hole 131 and the steam inlet 111, so as to stably realize the cooking control of the steam valve 100 on the cooking appliance. Among them, by providing the elastic sealing ring 3311 on the outer periphery of the sealing plug body 331, the elastic sealing ring 3311 can be made of a silicone or rubber material with a certain elasticity. The elastic sealing ring 3311 can be integrally plasticized with the sealing plug body 331 or fixed to the outer periphery of the sealing plug body 331 by hot melting. When the sealing plug body 331 moves toward the air outlet hole 131, the elastic sealing ring 3311 is extruded and deformed under the action of the power of the driving device 31 and enters the air outlet hole 131 to abut against the inner wall of the air outlet hole 131, so that the elastic sealing ring 3311 can fill the gap between the sealing plug body 331 and the inner wall of the air outlet hole 131 to realize the sealing and closing of the air outlet hole 131 by the sealing plug body 331. The end face of the sealing plug body 331 can be set to be larger than the size of the steam inlet 111, so that when the sealing plug body 331 further moves toward the steam inlet 111, it can abut against the inner wall of the valve body 10, and the end face of the sealing plug body 331 covers the steam inlet 111 to close the steam inlet 111. At this time, when the sealing plug body 331 closes the steam inlet 111, the elastic sealing ring 3311 can be kept abutting against the inner wall of the air outlet hole 131, so that the sealing plug body 331 can close the air outlet hole 131 and the steam inlet 111 at the same time, ensuring the stable operation of the steam valve 100 and further improving the structural stability and reliability of the steam valve 100.

[0072] Refer to Figures 3 to 8 , in an embodiment of the present invention, the driving device 31 includes a guiding slider 311, and a transmission inclined surface is formed on one side of the guiding slider 311. The end of the seal 33 facing away from the sealing plug body 331 abuts against the transmission inclined surface and is driven by the transmission inclined surface to open or close the air outlet hole 131 and / or the steam inlet 111.

[0073] In this embodiment, the driving device 31 may include a driving source and a guiding slider 311. The driving source is connected to the guiding slider 311 and drives the guiding slider 311 to move within the valve body 10. The moving direction of the guiding slider 311 is set at an angle to the moving direction of the sealing member 33. Furthermore, a transmission inclined surface is formed by bending or protruding on one side of the guiding slider 311. The transmission inclined surface may be a surface inclined towards the connecting rod. The transmission inclined surface may have a highest point and a lowest point in the moving direction of the sealing member 33. Furthermore, by abutting the end of the connecting rod of the sealing member 33 facing away from the sealing plug body 331 against the transmission inclined surface, during the process of the driving source driving the guiding slider 311 to move, the transmission inclined surface can abut against and drive the sealing member 33 to move. Thus, during the process of the transmission inclined surface abutting against the sealing member 33 and moving from the highest point to the lowest point, the opening and closing of the air outlet hole 131 and the steam inlet 111 by the sealing member 33 can be realized, the control of the movement of the sealing member 33 within the valve body 10 can be achieved, the stable operation of the steam valve 100 can be ensured, and the structural stability and reliability of the steam valve 100 can be further improved.

[0074] Referring to Figure 1 and Figure 2 , in an embodiment of the present invention, a transmission rack 3115 is provided on one side of the guiding slider 311. The driving source includes a driving motor 313 and a transmission gear 315. The transmission gear 315 is connected to the driving motor 313, and the transmission gear 315 is meshed with the transmission rack 3115. The driving motor 313 drives the transmission gear 315 to rotate so that the transmission gear 315 drives the guiding slider 311 to move.

[0075] In this embodiment, by providing a transmission rack 3115 on one side of the guiding slider 311 and meshing the transmission rack 3115 with the transmission gear 315, when the driving motor 313 drives the transmission gear 315 to rotate, the teeth on the transmission gear 315 can be used to push the teeth of the transmission rack 3115 and apply a horizontal thrust force to the guiding slider 311. Such that the driving device 31 can convert the steering acting force of the driving motor 313 through the connection between the transmission gear 315 and the transmission rack 3115 into the acting force for the horizontal movement of the guiding slider 311, and can stably drive the guiding slider 311 to move horizontally. Furthermore, the guiding slider 311 can drive the transmission inclined surface to drive the sealing member 33 to move, ensuring the normal operation of the steam valve 100. When it is necessary to change the moving direction of the guiding slider 311 to adjust the position of the sealing member 33 to open or close the air outlet hole 131 and the steam inlet 111, the driving motor 313 can be controlled to rotate forward or reverse, thereby changing the direction in which the transmission gear 315 drives the transmission rack 3115 to move. Such that the driving device 31 can more conveniently control the moving direction of the guiding slider 311, further improving the practicability and reliability of the steam valve 100.

[0076] Reference Figure 2 In one embodiment of the present invention, the valve body 10 is further provided with a position detection device 15 for detecting the moving position of the guiding slider 311.

[0077] In this embodiment, by providing the position detection device 15 on the valve body 10, the position detection device 15 can be an infrared detection device or a ranging device. When the guiding slider 311 drives the sealing member 33 to move to the position of opening or closing the air outlet hole 131 and the steam inlet 111 during the production process of the steam valve 100, the position detection device 15 is used to contact and trigger or record the moving distance of the guiding slider 311 at this time. Then, when the steam valve 100 operates, it can be determined whether the sealing member 33 stably opens or closes the air outlet hole 131 and the steam inlet 111 according to the trigger signal of the position detection device 15. That is, the position detection device 15 can respond to the starting point and the ending point of the movement of the guiding slider 311, avoiding the situation that the guiding slider 311 drives the sealing member 33 to move incompletely, which may cause the sealing member 33 to be unable to completely close or open the air outlet hole 131 with a certain probability, facilitating better ensuring the stable operation of the steam valve 100 and further improving the structural stability and reliability of the steam valve 100.

[0078] Reference Figure 2 In one embodiment of the present invention, the position detection device 15 is a microswitch, and a trigger rib 3117 is provided on one side of the guiding slider 311 facing the position detection device 15 for contacting and triggering the position detection device 15.

[0079] In this embodiment, the position detection device 15 can adopt a microswitch. A trigger key can be provided on one side of the microswitch. By arranging the microswitch on one side of the guiding slider 311 and providing a trigger rib 3117 on one side of the guiding slider 311, a protrusion is provided at one end of the trigger rib 3117. When the steam valve 100 is installed, the other part of the trigger rib 3117 except the protrusion can be arranged at a certain distance from the trigger key of the microswitch, and the size of the protrusion of the trigger rib 3117 is larger than this distance.

[0080] At this time, the guiding slider 311 can drive the sealing member 33 to move towards or away from the air outlet hole 131 and the steam inlet 111, and the process can prevent the triggering rib 3117 from contacting the trigger key of the microswitch. When the guiding slider 311 drives the sealing member 33 to completely close the air outlet hole 131, the protrusion on the triggering rib 3117 just abuts against the trigger key of the microswitch, so that the steam valve 100 can trigger the position detection device 15 to respond when the sealing member 33 moves to just completely close the air outlet hole 131. At this time, the steam valve 100 can control the driving device 31 to stop further driving the guiding slider 311, maintaining the state where the sealing member 33 closes the air outlet hole 131 at this time, and avoiding the situation where the movement of the sealing member 33 is not in place. Similarly, when the guiding slider 311 drives the sealing member 33 to completely open the air outlet hole 131, the protrusion on the triggering rib 3117 can also just abut against the trigger key of the microswitch, so that the steam valve 100 can also trigger the position detection device 15 to respond when the sealing member 33 moves to just completely open the air outlet hole 131, and control the driving device 31 to stop further driving the guiding slider 311 at this time, maintaining the state where the sealing member 33 opens the air outlet hole 131 at this time. Under the linkage response of the position detection device 15 and the guiding slider 311, it can effectively ensure that the sealing member 33 can stably be in the states of closing the air outlet hole 131 and opening the air outlet hole 131, avoiding the situation where the movement of the sealing member 33 in the valve body 10 is not in place, ensuring the stable operation of the steam valve 100, and further improving the structural stability and reliability of the steam valve 100. Secondly, when the guiding slider 311 drives the sealing member 33 to further open or close the steam inlet 111, the position detection device 15 can also be correspondingly set to abut and trigger with the triggering rib 3117 of the guiding slider 311, ensuring that the sealing member 33 can transmit the in-place signal to the control system of the cooking appliance when opening or closing the air outlet hole 131 or the steam inlet 111, so that the steam valve 100 can operate more stably and reliably.

[0081] Referring to Figure 3 , Figure 6 , Figure 7 and Figure 8 , in an embodiment of the present invention, the transmission inclined plane includes a first inclined plane 3111 and a second inclined plane 3113, and the first inclined plane 3111 and the inclined plane are arranged in sequence along the moving direction of the sealing member 33. The first inclined plane 3111 drives the sealing member 33 to open or close the air outlet hole 131, and the second inclined plane 3113 drives the sealing member 33 to open or close the steam inlet 111.

[0082] In this embodiment, the transmission inclined plane may include a first inclined plane 3111 and a second inclined plane 3113. The first inclined plane 3111 and the second inclined plane 3113 may be inclined surfaces arranged in sequence along the moving direction of the seal 33. A transition section perpendicular to the moving direction of the seal 33 may be provided between the first inclined plane 3111 and the second inclined plane 3113, so that the lowest point of the first inclined plane 3111 and the highest point of the second inclined plane 3113 are on the same horizontal plane. Further, in the process that the guiding slider 311 drives the first inclined plane 3111 to abut against the seal 33 from the highest point and move to the lowest point to abut against the seal 33, the seal 33 can be driven to move in the valve body 10 to close the air outlet hole 131. At this time, the seal 33 enters the transition section at the lowest point of the first inclined plane 3111. When the guiding slider 311 moves further, the second inclined plane 3113 can abut against the seal 33. In the process that the second inclined plane 3113 abuts against the seal 33 from the highest point and moves to the lowest point to abut against the seal 33, the seal 33 can be driven to move in the valve body 10 to close the steam inlet 111, realizing the driving of the seal 33 by the driving device 31 and ensuring the stable operation of the steam valve 100. By providing the first inclined plane 3111 and the second inclined plane 3113 on the transmission inclined plane to realize the control of the driving device 31 over the opening and closing of the air outlet hole 131 and the steam inlet 111 by the seal 33, the hierarchical regulation of the seal 33 in the steam valve 100 can be better realized, so that the cooking appliance can more stably realize the opening and closing control of the air outlet hole 131 and / or the steam inlet 111, further improving the structural stability and reliability of the steam valve 100.

[0083] Referring to Figures 6 to 8 , in an embodiment of the present invention, a connecting hole 333 is provided on the outer periphery of the seal 33. The guiding slider 311 is movably inserted through the connecting hole 333, and the transmission inclined plane abuts against the inner wall of the hole of the connecting hole 333.

[0084] In this embodiment, by providing a connection hole 333 penetrating the connecting rod on the outer peripheral side of the connecting rod of the seal 33, the guiding slider 311 can be movably passed through the connection hole 333, and the transmission inclined surface on one side of the guiding slider 311 can be abutted against the inner wall of the hole of the connection hole 333. Thus, during the process of the guiding slider 311 horizontally passing through the connection hole 333 and moving, the inner wall of the connection hole 333 can be pushed by the transmission inclined surface to drive the seal 33 to move towards or away from the air outlet hole 131 and the steam inlet 111, realizing the movement of the driving device 31 driving the seal 33 in the valve body 10, so that the seal 33 can stably open or close the air outlet hole 131 and the steam inlet 111, further improving the structural stability and reliability of the steam valve 100. By providing the connection hole 333 on the seal 33 for the guiding slider 311 to pass through, the connection between the seal 33 and the guiding slider 311 is realized. The movement of the guiding slider 311 can be limited by the connection hole 333, avoiding the deviation of the guiding slider 311 resulting in the deviation of the seal 33 in the valve body 10 and affecting the opening and closing effect of the seal 33 on the air outlet hole 131 and the steam inlet 111, further ensuring the stable operation of the steam valve 100. At the same time, the connection stability and reliability between the seal 33 and the guiding slider 311 can be better improved by using the connection hole 333, avoiding the disconnection between the guiding slider 311 and the seal 33, ensuring that the driving device 31 can stably act on the seal 33 to drive the seal 33 to move in the valve body 10, realizing the stable opening and closing of the seal 33 on the air outlet hole 131 and the steam inlet 111, preventing the backflow of water vapor into the air duct 13, and further improving the practicability and reliability of the steam valve 100.

[0085] Referring to Figures 6 to 8 , in an embodiment of the present invention, a guiding hole 171 is provided on the inner wall of the valve body 10, the seal 33 is movably passed through the guiding hole 171, and the guiding slider 311 is provided on the side of the guiding hole 171 facing away from the air outlet hole 131.

[0086] In this embodiment, by providing a guiding hole 171 on the inner wall of the valve body 10, the connecting rod of the seal 33 can pass through the guiding hole 171 to connect to a sealing plug body 331 located between the guiding hole 171 and the air outlet hole 131. At this time, the guiding slider 311 can be arranged on the side of the guiding hole 171 facing away from the air outlet hole 131, so that the guiding slider 311 can stably use the transmission inclined surface to abut against the seal 33 and drive the seal 33 to move at the guiding hole 171, thereby realizing the closing or opening of the air outlet hole 131 and the steam inlet 111 by the sealing plug body 331. The size of the guiding hole 171 can be slightly larger than the cross-sectional size of the connecting rod of the seal 33, so that the connecting rod can be limited by the guiding hole 171 during the movement of the seal 33, avoiding the deviation of the seal 33 during the movement, enabling the seal 33 to move vertically in the valve body 10 smoothly to open and close the air outlet hole 131 and the steam inlet 111, ensuring the stable operation of the steam valve 100, and further improving the structural stability and reliability of the steam valve 100.

[0087] In addition, from 6 to Figure 8 furthermore, a limiting groove 17 can be provided in the valve body 10. The guiding hole 171 is provided on the bottom wall of the limiting groove 17, and the seal 33 is movably disposed through the limiting groove 17.

[0088] In this embodiment, the valve body 10 can be provided with a limiting groove 17 on the inner wall, so that when the seal 33 opens the air outlet hole 131, the seal 33 can be received in the limiting groove 17 to avoid the airflow, so that the low-temperature airflow in the air supply channel 13 can better flow through the air outlet hole 131 and be discharged into the steam channel 11 to cool the water vapor. At this time, a guiding hole 171 can be provided on the bottom wall of the limiting groove 17, so that the connecting rod of the seal 33 can be inserted into the guiding hole 171 and the inner wall of the guiding hole 171 can be used to limit the deviation of the seal 33 to realize the limitation of the movement of the seal 33. Secondly, a convex structure can also be provided on the inner side wall of the limiting groove 17, and the convex structure is used to abut against the outer periphery of the seal 33 to play a certain role in limiting the movement of the seal 33, which is beneficial to better preventing the seal 33 from deviating during the movement in the valve body 10, enabling the seal 33 to open or close the air outlet hole 131 and the steam inlet 111 more stably and reliably, and further improving the structural stability and reliability of the steam valve 100.

[0089] In addition, the outer periphery of the sealing plug body 331 can be connected to the sealing sleeve 335 in a surrounding manner, and a fixed flange 3351 is provided by folding one end of the sealing sleeve 335. The sealing sleeve 335 can be a structure with a certain elasticity or capable of being bent at a certain angle, so that during the movement of the connecting rod of the seal 33 driving the sealing plug body 331, the sealing sleeve 335 can be bent and retracted or extended to avoid the movement of the sealing plug body 331 in the air supply channel 13. At this time, a fixed clamping groove 173 can be recessed on the inner side wall of the limit groove 17, and the fixed flange 3351 can be clamped in the fixed clamping groove 173. Furthermore, the sealing sleeve 335 can cover the notch of the limit groove 17 and be sealed at the notch of the limit groove 17, which is beneficial to isolating the low-temperature air flow in the air supply channel 13 from entering the limit groove 17 under the action of the sealing sleeve 335, preventing the air flow in the air supply channel 13 from being diverted and discharged through the guide hole 171, ensuring that the low-temperature air flow can more fully flow through the air outlet hole 131 and act on the steam valve 100 to cool the water vapor, and further improving the overall structural stability and reliability of the steam valve 100.

[0090] In addition, in an embodiment of the present invention, the sealing structure includes a first sealing structure and a second sealing structure. The first sealing structure is used to open or close the steam inlet 111; the second sealing structure is used to open or close the air outlet hole 131.

[0091] In this embodiment, the sealing structure can include two independent first sealing structures and second sealing structures. The first sealing structure and the second sealing structure can be two independent plug bodies or block structures respectively, and the driving device 31 includes two sets of independently operating driving units. The driving unit can be a push rod or a motor device. Furthermore, by driving the first sealing structure to move with one driving unit and driving the second sealing structure to move with the other driving unit, the first sealing structure and the second sealing structure can be used to independently open and close the steam inlet 111 and the air outlet hole 131 respectively, so that the steam valve 100 can more stably independently open and close the air outlet hole 131 or the steam inlet 111, realizing more precise cooking control during the cooking process, reducing the mutual interference between the sealing structure for opening and closing the air outlet hole 131 and the steam inlet 111, and further improving the structural stability and reliability of the steam valve 100.

[0092] Referring to Figure 1 、 Figure 4 、 Figure 9 and Figure 10 In an embodiment of the present invention, the steam valve 100 further includes a blower device 50. The blower device 50 is provided on one side of the valve body 10 and communicates with the air supply channel 13.

[0093] In this embodiment, the steam valve 100 can be provided with a blowing device 50 connected to the valve body 10. The blowing device 50 can be an axial flow fan, a centrifugal fan, etc. By providing an opening communicating with the blowing channel 13 on one side of the valve body 10 and covering the opening with the air outlet end of the blowing device 50, the steam valve 100 can utilize the blowing device 50 to introduce low-temperature air flow into the blowing channel 13, so that a low-temperature air flow with a relatively high flow rate can be introduced into the steam valve 100 to cool down the water vapor, ensuring the stable operation of the steam valve 100 and further improving the structural stability and reliability of the steam valve 100.

[0094] Secondly, turbulator ribs 115 can be connected and provided on the inner wall of the steam channel 11. The turbulator ribs 115 can be arranged on the path of the water vapor flowing in the steam channel 11, so that the water vapor can be blocked by the turbulator ribs 115 during the flowing process in the steam channel 11, extending the flowing path of the water vapor in the steam valve 100, enabling the water vapor to mix with the low-temperature air flow more fully in the steam valve 100 to achieve temperature reduction, ensuring the stable operation of the steam valve 100 and further improving the structural stability and reliability of the steam valve 100. Among them, by arranging a plurality of turbulator ribs 115 at certain intervals along the flowing path of the water vapor in the steam channel 11, the flowing path of the water vapor in the steam valve 100 can be further extended, realizing the full condensation and temperature reduction of the water vapor in the steam valve 100 and ensuring the practicability and reliability of the steam valve 100.

[0095] Moreover, a temperature detection mechanism can also be provided in the steam channel 11 of the steam valve 100. The temperature detection mechanism can be a thermometer, a temperature sensor, etc. The temperature detection mechanism can be used to monitor the steam temperature in the steam channel 11 in real time, so as to determine whether the seal 33 opens and closes the air outlet hole 131 normally according to the temperature feedback in the steam channel 11. During the process of introducing low-temperature air flow into the steam valve 100 to cool down the water vapor, if the temperature detected by the temperature detection mechanism in the steam channel 11 is greater than or equal to the temperature of the water vapor, it can indicate that the low-temperature air flow does not enter the steam channel 11 well to cool down the water vapor at this time. At this time, it can be feedback that the seal 33 does not open the air outlet hole 131 well, and a warning can be given to the user that the steam valve 100 has a fault. Among them, one end of the temperature detection mechanism can also be exposed on the side of the steam valve 100 facing the pot body, so that the temperature detection mechanism can also be used to detect the temperature in the pot body during the cooking process of the cooking appliance, which is beneficial to making the components of the cooking appliance more compact and further improving the practicability and reliability of the cooking appliance.

[0096] The present invention also provides a pot lid 200, which includes a lid body 20 and a steam valve 100. The specific structure of the steam valve 100 refers to the above embodiments. Since the pot lid 200 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0097] The present invention also provides a cooking appliance, which includes a pot body and a pot lid 200. The specific structure of the pot lid 200 refers to the above embodiments. Since the cooking appliance adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0098] As an implementation solution, Figure 11 is a schematic diagram of the architecture of the hardware operating environment of an embodiment of the cooking appliance of the present invention.

[0099] As shown in Figure 11 , the cooking appliance may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, and a communication bus 1002. Among them, the communication bus 1002 is used to implement the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0100] Those skilled in the art can understand that Figure 11 the cooking appliance architecture shown in

[0101] As shown in Figure 11 , as a storage medium, the memory 1005 may include an operating system, a network communication module, a user interface module, and a control program for the cooking appliance. Among them, the operating system is a program for managing and controlling the hardware and software resources of the cooking appliance, and for running the control program and other software or programs of the cooking appliance.

[0102] In Figure 11In the cooking appliance shown, the user interface 1003 is mainly used to connect to a terminal and communicate with the terminal for data; the network interface 1004 is mainly used to communicate with a background server for data; the processor 1001 can be used to call the control program of the cooking appliance stored in the memory 1005.

[0103] In this embodiment, the cooking appliance includes: a memory 1005, a processor 1001, and a control program of the cooking appliance stored on the memory and executable on the processor. When the processor 1001 calls the control program of the cooking appliance stored in the memory 1005, it executes the steps of the welding processing method of the cooking appliance described below.

[0104] The present invention provides a control method for a cooking appliance. Refer to Figure 12 , Figure 12 is a schematic flowchart of an embodiment of the control method for the cooking appliance of the present invention. The embodiments of the present application provide embodiments of the control method for the cooking appliance. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than here. It can be understood that the control of the cooking appliance includes the following steps:

[0105] Step S10, detecting that the cooking appliance is in a boiling state;

[0106] It can be understood that induction devices such as a temperature sensor, a liquid level sensor, or a timer can be provided in the cooking appliance, so that the cooking appliance can stably judge the current cooking state according to the results detected by the induction device in combination with the control of the preset program, thereby realizing the stable control of the cooking appliance. In this embodiment, the cooking process of the cooking appliance when cooking ingredients such as rice or coarse grains can sequentially pass through a water absorption heating state, a boiling state, and a rice simmering and heat preservation state. At this time, the temperature sensor can be used to continuously monitor the temperature in the pot body during the cooking process of the cooking appliance, and when the temperature in the pot body reaches the temperature corresponding to a certain state, the cooking appliance can be made to enter the corresponding state; or, the cooking appliance can determine the corresponding state according to the cooking time to ensure the stable operation of the cooking appliance. Among them, when the temperature sensor of the cooking appliance monitors that the temperature in the pot body reaches the boiling temperature of the ingredients in the pot, or when the cooking time in the cooking appliance reaches the time for heating the ingredients to boiling, the control unit of the cooking appliance can be made to prompt that the cooking appliance enters the boiling state at this time, so that the cooking appliance can further control its internal components to operate corresponding to this state to achieve a better cooking effect.

[0107] Step S30, controlling the driving device 31 to drive the sealing member 33 to seal the steam inlet 111 for a first preset time and then open the steam inlet 111.

[0108] When it is determined that the cooking appliance enters the boiling state, at this time, the cooking appliance can send a control signal to the steam valve 100, so that the steam valve 100 controls the operation of the driving device 31. Furthermore, the driving device 31 can drive the sealing member 33 to move to the steam inlet 111 in the valve body 10, and the steam inlet 111 is sealed by the sealing member 33. When the cooking appliance enters the boiling state, the moisture of the ingredients in the pot body is heated to the boiling state at this time, so that water vapor can be continuously generated in the pot body. By using the sealing member 33 to seal the steam inlet 111 at this time, the water vapor can be blocked and accumulated in the pot body. Furthermore, the air pressure in the pot body continuously increases due to the continuous accumulation of water vapor. When the sealing member 33 seals the steam inlet 111, the timer can be triggered to operate, so that the timer can record the time when the sealing member 33 seals the steam inlet 111. At this time, by setting a first preset time, the first preset time can be adjusted according to the volume of the pot body and the quantity of the ingredients. Usually, the first preset time can be less than or equal to 3 minutes. When the value counted by the timer reaches the first preset time, at this time, in response to the air pressure in the pot body rising to a certain pressure value, the driving device 31 can be controlled to drive the sealing member 33 away from the steam inlet 111 to open the steam inlet 111, so that the accumulated water vapor in the pot body can quickly flow through the steam inlet 111 into the steam channel 11 at the moment when the steam inlet 111 is opened, so that the air pressure in the pot body rapidly decreases at this time. Thus, the tumbling and stirring of the ingredients in the pot body can be caused by the sudden change of the air pressure in the pot body, so that the cooking appliance can realize the stirring of the ingredients in the pot body by controlling the steam valve 100 to close the steam inlet 111, which is beneficial to better reducing the adhesion and caking of the ingredients during cooking, so that ingredients such as rice and coarse grains can achieve the cooking effect of being separated grain by grain after being cooked by the cooking appliance, better improving the edible taste of the user, and further improving the cooking effect of the cooking appliance.

[0109] The technical solution of the present invention can control the steam valve 100 to briefly close and then open the steam inlet 111 by detecting that the cooking appliance enters the boiling state, so that the cooking appliance can perform micro-pressure cooking when the ingredients are in the boiling state, so that the air pressure in the pot body can suddenly change in the boiling state to cause the tumbling and stirring of the ingredients in the pot body, which is beneficial to better avoiding ingredient caking and improving the cooking effect of the cooking appliance.

[0110] In an embodiment of the present invention, in the step of opening the steam inlet 111 after the driving device 31 is controlled to drive the sealing member 33 to seal the steam inlet 111 for the first preset time, it includes:

[0111] Step S31, after the driving device 31 is controlled to drive the sealing member 33 to seal the steam inlet 111 for the first preset time, the steam inlet 111 is opened, and the steam inlet 111 is cyclically closed and opened after the first preset interval time.

[0112] In this embodiment, when it is detected that the cooking appliance enters the boiling state and the steam inlet 111 is sealed and closed by the seal 33 for a first preset time and then the steam inlet 111 is opened, the change of the air pressure in the pot body can be utilized to realize the rolling and stirring of the food materials in the pot body. After that, in order to achieve a better stirring effect of the food materials in the pot body, the driving device 31 can be controlled again to drive the seal 33 to close the steam inlet 111, and a timer is set to start timing each time the seal 33 closes the steam inlet 111. At the same time, a first preset interval time is preset, so that the timer controls the driving device 31 to drive the seal 33 to open the steam inlet 111 when the timing reaches the first preset interval time each time. Then, after the steam inlet 111 is completely opened, the driving device 31 is controlled to drive the seal 33 to move again to close the sealed steam inlet 111, so that the control program of closing the steam inlet 111 by the seal 33 for the first preset interval time and then opening the steam inlet 111 can be cyclically operated in the boiling state, so that the air pressure in the pot body can continuously undergo the processes of boosting and reducing pressure, which is beneficial to better causing the rolling and stirring of the food materials in the pot body at each air pressure mutation, so that the food materials can be better broken up and cooked, and further improving the cooking effect of the cooking appliance. Among them, the first preset interval time can be the same as the first preset time, so that the steam valve 100 can realize the stirring of the food materials at regular intervals during the whole boiling process; or, the first preset interval time can be different from the first preset time, so that the food materials can be better stirred in a better first preset time, and then different stirring effects can be realized in each subsequent first preset time. The total duration of the first preset time and the multiple first preset interval times should be controlled within 15 minutes to avoid excessive stirring of the food materials and causing a large amount of loss of internal moisture of the food materials, so that the cooking appliance can achieve a better cooking effect.

[0113] In an embodiment of the present invention, in the step of controlling the driving device 31 to drive the seal 33 to seal the steam inlet 111 for a first preset time and then open the steam inlet 111, it includes:

[0114] Step S33, controlling the driving device 31 to drive the seal 33 to seal the air outlet hole 131 and the steam inlet 111 for a first preset time, and then open the steam inlet 111 and the air outlet hole 131.

[0115] In this embodiment, since a large amount of water vapor is generated in the pot body in the boiling state, at this time, the air blowing device 50 of the steam valve 100 is started by control. So that the low-temperature air flow generated by the air blowing device 50 enters the air blowing channel 13, and the low-temperature air flow flowing in the air blowing channel 13 can enter the steam channel 11 through the air outlet hole 131 to cool down the water vapor, avoiding the high-temperature water vapor directly discharging through the steam outlet 113 and affecting the temperature and humidity of the indoor environment, and at the same time avoiding the high-temperature water vapor from burning the user.

[0116] By controlling the driving device 31 to drive the seal 33 to close the air outlet hole 131 and the steam inlet 111 simultaneously in the boiling state, the introduction of low-temperature air flow from the air duct 13 into the steam duct 11 when the steam inlet 111 is sealed and closed can be stopped, which is beneficial to reducing the power consumption of the cooking appliance. Among them, the air outlet hole 131 and the steam inlet 111 can be coaxially arranged, so that when the seal 33 moves along the axis of the air outlet hole 131 and the steam inlet 111, the air outlet hole 131 and the steam inlet 111 can be closed simultaneously, or only the air outlet hole 131 can be closed, or only the steam inlet 111 can be opened, or the air outlet hole 131 and the steam inlet 111 can be opened simultaneously, ensuring the coordinated control of the air outlet hole 131 and the steam inlet 111 in the steam valve 100. At this time, after the driving device 31 drives the seal 33 to seal the air outlet hole 131 and the steam inlet 111 for a first preset time, the driving device 31 can be controlled again to drive the seal 33 away from the steam inlet 111 and the air outlet hole 131, and the steam inlet 111 and the air outlet hole 131 are opened simultaneously, so that the water vapor in the pot body can quickly enter the steam duct 11 to cause a sudden change in the air pressure in the pot body to stir the ingredients, and at the same time, the low-temperature air flow can quickly enter the steam duct 11 through the air outlet hole 131 to cool the water vapor, reducing the influence of high-temperature steam discharged through the steam outlet 113 on the indoor environment and burning the user, ensuring the stable operation of the cooking appliance, and further improving the practicability and reliability of the cooking appliance.

[0117] In an embodiment of the present invention, before the step of detecting that the cooking appliance is in the boiling state, it includes:

[0118] Step S01, detecting that the cooking appliance is in the water-absorbing heating state;

[0119] In this embodiment, when the cooking appliance adds ingredients and presses the switch button to start the cooking program, the heating module in the pot body can gradually generate heat after receiving the instruction and act on the pot body to heat the ingredients. At this time, when the temperature sensor of the cooking appliance monitors that the temperature in the pot body starts to change, or when the cooking time in the cooking appliance reaches the time when the ingredients start to receive heat for heating, the control unit of the cooking appliance can be prompted to enter the water-absorbing heating state at this time, so that the cooking appliance can further control its internal components to operate corresponding to this state to achieve a better cooking effect.

[0120] Step S03, turning on the air blowing device 50, and controlling the driving device 31 to drive the seal 33 to open the air outlet hole 131 and the steam inlet 111.

[0121] When the cooking appliance cooks ingredients such as rice or coarse grains, these ingredients are prone to develop stale odors after long-term storage and can be released from the ingredients when the ingredients are heated to promote water absorption. At this time, the stale odor will adhere to the ingredients and affect the taste of the ingredients after cooking. In this embodiment, when the cooking appliance detects that the ingredients in the pot body enter the water absorption and heating state, the blower device 50 of the steam valve 100 can be controlled to start, so that the blower device 50 blows low-temperature air into the blower channel 13, and the low-temperature air can enter the steam channel 11 through the air outlet 131, and then enter the pot body through the steam inlet 111 in the steam channel 11, so that the air flow can drive the stale odor generated by the ingredients in the pot body and then return to the steam channel 11 through the steam inlet 111, and then be discharged out of the cooking appliance through the steam outlet 113 communicating with the steam channel 11, so that the cooking appliance can better discharge the stale odor released by the ingredients, make the ingredients obtain better cooking flavor after cooking, and further improve the practicability and reliability of the cooking appliance.

[0122] In an embodiment of the present invention, after the step of opening the steam inlet 111 after controlling the driving device 31 to drive the sealing member 33 to seal the steam inlet 111 for a first preset time, it includes:

[0123] Step S50, detecting that the cooking appliance is in the rice simmering and heat preservation state;

[0124] In this embodiment, when the temperature sensor of the cooking appliance monitors that the temperature in the pot body reaches the temperature at which the ingredients are completely cooked, or when the cooking time in the cooking appliance reaches the time at which the ingredients are completely cooked, the control unit of the cooking appliance can be prompted to enter the rice simmering and heat preservation state at this time, so that the cooking appliance can further control its internal components to operate corresponding to this state to achieve a better cooking effect.

[0125] Step S70, controlling the driving device 31 to drive the sealing member 33 to seal the steam inlet 111 for a second preset time and then open the steam inlet 111.

[0126] At this time, when the cooking appliance enters the rice simmering and keeping warm state, it can reduce the temperature in the pot body to the keeping warm temperature of the ingredients, preventing the ingredients from being further heated and getting burnt. However, during the keeping warm process of the ingredients, the internal moisture will still volatilize under the action of the remaining temperature of the ingredients. After a long time of keeping warm, it is easy to cause the water content of the ingredients to decrease, affecting the eating experience of the ingredients. In this embodiment, when the cooking appliance enters the rice simmering and keeping warm state, it can control the driving device 31 to drive the sealing member 33 to seal the steam inlet 111, and at this time, control the timer to start timing. Furthermore, by closing the steam inlet 111 during the keeping warm stage, it can block the moisture volatilized from the ingredients from dissipating to the outside of the cooking appliance through the steam valve 100, so that part of the moisture volatilized from the ingredients can return to the ingredients again, reducing the loss of moisture in the ingredients, and enabling the cooking appliance to achieve a longer keeping warm and fresh-keeping effect. By presetting the second preset time, when the timer counts up to the second preset time, it can control the driving device 31 to drive the sealing member 33 away from the steam inlet 111 to open the steam inlet 111, so that the moisture that volatilizes in the pot body and cannot be locked back into the ingredients can be discharged through the steam valve 100, preventing the water vapor in the pot from condensing and dripping on the ingredients and affecting the taste of the ingredients, and further improving the cooking effect of the cooking appliance. Among them, the second preset time can be adjusted according to the keeping warm temperature of the ingredients and the quantity of the ingredients. Usually, the second preset time can be set within a time less than or equal to 5 minutes to ensure better cooking and fresh-keeping of the ingredients by the cooking appliance.

[0127] In an embodiment of the present invention, in the step of opening the steam inlet 111 after controlling the driving device 31 to drive the sealing member 33 to seal the steam inlet 111 for the second preset time, it includes:

[0128] Step S71, after controlling the driving device 31 to drive the sealing member 33 to seal the steam inlet 111 for the second preset time, open the steam inlet 111, and close and open the steam inlet 111 in a cycle after a second preset interval time.

[0129] After cooking is completed, the ingredients can remain in the state of simmering and keeping warm while the cooking appliance has not stopped operating or has not executed the next cooking program. At this time, after the steam inlet 111 is sealed by the seal 33 for the second preset time and then the steam inlet 111 is opened, the cooking device can cyclically operate the seal 33 of the steam valve 100 to close the steam inlet 111 and then open the steam inlet 111 after the second preset interval. The timer can be triggered to start timing each time the seal 33 closes the steam inlet 111, and when the timing reaches the second preset interval, the seal 33 can be controlled to move to open the steam inlet 111. Then, after the steam inlet 111 is fully opened, the driving device 31 can be controlled to drive the seal 33 to move to close the steam inlet 111 and enter the next cycle. Thus, the ingredients can be micro-compressed to preserve water and the residual water vapor can be discharged multiple times during the simmering and keeping warm state, enabling the ingredients to achieve a longer-term heat preservation and freshness preservation effect, ensuring that the ingredients can maintain a good taste for a period of time after cooking, and further improving the practicability and reliability of the cooking appliance.

[0130] Among them, the second preset interval can be the same as the second preset time, so that the steam valve 100 can lock the water and preserve the freshness of the ingredients at regular intervals during the entire simmering and keeping warm process; or, the second preset interval can be different from the second preset time, so that the ingredients can first achieve better water locking and freshness preservation within a better second preset time, and then different water shrinking and freshness preservation effects can be achieved in each subsequent second preset time. The total duration of the second preset time and multiple second preset intervals should be controlled within 10 minutes to avoid excessive residual moisture in the ingredients during the heat preservation process, so that the cooking appliance can achieve a better cooking effect.

[0131] In addition, to achieve the above object, the present application also provides a readable storage medium, on which a control program for a cooking appliance is stored. When the control program for the cooking appliance is executed by a processor, the steps of the control method for the cooking appliance as described above are implemented.

[0132] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A steam valve, characterized in that, Comprising: A valve body, a steam passage and a blast passage are formed in the valve body, an air outlet hole communicating the steam passage and the blast passage is provided in the valve body, and a steam inlet communicating the steam passage is provided on the valve body; and A valve mechanism, the valve mechanism includes a driving device and a seal, the seal is movably arranged in the valve body, and the driving device drives the seal to move to open or close the steam inlet.

2. The steam valve according to claim 1, characterized in that, The seal is movably arranged along the direction towards or away from the air outlet hole and the steam inlet, and opens or closes the air outlet hole and / or the steam inlet during the movement.

3. The steam valve according to claim 2, wherein, The air outlet hole and the steam inlet are coaxially arranged and are respectively provided on two opposite inner walls of the valve body, and the seal moves along the central axis of the air outlet hole and the steam inlet.

4. The steam valve according to claim 3, wherein, A sealing plug body is connected to the end of the seal, and an elastic sealing ring is provided around the outer peripheral side of the sealing plug body; The elastic sealing ring is used to abut against the inner wall of the hole of the air outlet hole, and the end face of the sealing plug body is used to abut against the inner wall of the valve body and cover the steam inlet.

5. The steam valve according to claim 4, wherein The driving device includes a guiding slider, and a transmission inclined surface is formed on one side of the guiding slider; The end of the seal facing away from the sealing plug body abuts against the transmission inclined surface and is driven by the transmission inclined surface to open or close the air outlet hole and / or the steam inlet.

6. The steam valve according to claim 5, characterized in that, The transmission inclined surface includes a first inclined surface and a second inclined surface, and the first inclined surface and the inclined surface are arranged in sequence along the moving direction of the seal; The first inclined surface drives the seal to open or close the air outlet hole, and the second inclined surface drives the seal to open or close the steam inlet.

7. The steam valve according to claim 5, characterized in that, A connecting hole is provided on the outer periphery of the seal, the guiding slider is movably inserted through the connecting hole, and the transmission inclined surface abuts against the inner wall of the connecting hole.

8. The steam valve according to claim 5, characterized in that, A guiding hole is provided on the inner wall of the valve body, the seal is movably inserted through the guiding hole, and the guiding slider is arranged on the side of the guiding hole facing away from the air outlet hole.

9. The steam valve according to claim 1, characterized in that, The seal includes: A first sealing structure for opening or closing the steam inlet; and A second sealing structure for opening or closing the air outlet hole.

10. The steam valve according to any one of claims 1 to 9, characterized in that, The steam valve further includes a blast device, the blast device is arranged on one side of the valve body and communicates with the blast passage.

11. A pot lid, characterized in that, The pot lid includes a lid body and a steam valve, the steam valve is the steam valve according to any one of claims 1 to 10, and the steam valve is arranged in the lid body.

12. A cooking appliance, characterized in that, The cooking appliance includes a pot body and a pot lid, the pot lid is the pot lid according to claim 11, and the pot lid is used to open or cover the pot body.

13. A control method for a cooking appliance, characterized in that, Including the following steps: Detect that the cooking appliance is in a boiling state; After controlling the driving device to drive the seal to seal the steam inlet for a first preset time, open the steam inlet.

14. The control method of the cooking appliance according to claim 13, wherein, In the step of controlling the driving device to drive the seal to seal the steam inlet for a first preset time and then open the steam inlet, it includes: After controlling the driving device to drive the seal to seal the steam inlet for a first preset time, open the steam inlet, and close and open the steam inlet in a cycle after a first preset interval time.

15. The control method of the cooking appliance according to claim 13, wherein After the control driving device drives the seal to seal the steam inlet for a first preset time, the step of opening the steam inlet includes: The control driving device drives the seal to seal the air outlet hole and the steam inlet for a first preset time, and then opens the steam inlet and the air outlet hole.

16. The control method of the cooking appliance according to claim 13, characterized in that, Before the step of detecting that the cooking appliance is in a boiling state, it includes: Detect that the cooking appliance is in a water-absorbing heating state; Turn on the air blowing device, and the control driving device drives the seal to open the air outlet hole and the steam inlet.

17. The control method of the cooking appliance according to claim 13, wherein, After the step of, after the control driving device drives the seal to seal the steam inlet for a first preset time, opening the steam inlet, it includes: Detect that the cooking appliance is in a rice simmering and heat preservation state; The control driving device drives the seal to seal the steam inlet for a second preset time, and then opens the steam inlet.

18. The control method of the cooking appliance according to claim 17, characterized in that, The step of, after the control driving device drives the seal to seal the steam inlet for a second preset time, opening the steam inlet includes: The control driving device drives the seal to seal the steam inlet for a second preset time, then opens the steam inlet, and closes and opens the steam inlet in a cycle after a second preset interval time.

19. A readable storage medium, characterized in that, A control program of a cooking appliance is stored on the readable storage medium, and when the control program of the cooking appliance is executed by a processor, the steps of the control method of the cooking appliance according to any one of claims 13 to 18 are implemented.

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