Control method and device of cooking device, controller and storage medium

Abstract

The invention discloses a control method and device of a cooking device, a controller and a storage medium. The method comprises the following steps: acquiring a steam pressure value in a steam storage space; and controlling the pressure release valve according to the steam pressure value so as to enable the pressure release flow channel to connect or disconnect the cooking space and the steam storage space. Therefore, the communicating hole in the cooking device can achieve normal steam discharge so as to conduct steam heating on the cooking space, when the steam pressure in the steam storage space is too large, the pressure relief valve is opened so that the pressure relief flow channel can conduct the cooking space and the steam storage space, and the pressure relief flow channel serves as a second exhaust port; therefore, steam in the steam storage space can be quickly discharged into the cooking space, pressure relief protection of the steam storage space is achieved, meanwhile, pressure relief steam discharged by the pressure relief flow channel is beneficial to scattering the steam in the cooking space, the steam in the cooking space is more uniform, heating uniformity is improved, recycling of redundant steam is achieved, and energy is saved. And the cooking effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking device control, and particularly to a control method, device, controller and storage medium for a cooking device. Background Art

[0002] Steam cooking devices are widely used in home cooking due to their characteristics such as uniform heating, health and convenience. In related technologies, the cooking device uses an electric heating component to heat water to generate steam, and then drains the steam through the air outlet of the steam storage cavity into the cooking space, so as to realize steam cooking of food. However, when the exhaust speed of the air outlet is less than the amount of steam generated by the electric heating component, the steam that cannot be exhausted in time continuously accumulates in the steam storage cavity, resulting in a sharp increase in the steam pressure in the steam storage cavity, greatly increasing the risk of steam leakage or the cooking device exploding. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems in the related technologies to some extent. For this reason, the first object of the present invention is to propose a control method for a cooking device. The communication hole in the cooking device can realize normal steam discharge to heat the cooking space with steam, and when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space. The pressure relief flow path serves as a second air outlet, so that the steam in the steam storage space can be quickly discharged into the cooking space to realize pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow path helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also helps to improve the cooking effect.

[0004] The second object of the present invention is to propose a computer-readable storage medium.

[0005] The third object of the present invention is to propose a control device for a cooking device.

[0006] The fourth object of the present invention is to propose a controller.

[0007] To achieve the above object, the first aspect embodiment of the present invention proposes a control method for a cooking device. The cooking device includes a pot lid and a pot body. The pot lid is arranged on the pot body and jointly defines a cooking space with the pot body. A steam storage space is formed in the pot body. The pot body has a communication hole and a pressure relief flow path. The communication hole communicates the cooking space and the steam storage space, so that the communication hole discharges the steam in the steam storage space into the cooking space. A pressure relief valve is arranged in the pressure relief flow path. The method includes:

[0008] Obtain the steam pressure value in the steam storage space; control the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space.

[0009] According to the control method of the cooking device according to an embodiment of the present invention, the communication hole in the cooking device can realize normal steam discharge to heat the cooking space with steam. And when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space. The pressure relief flow path serves as the second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to realize the pressure relief protection of the steam storage space, reduce the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow path helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also helps to improve the cooking effect.

[0010] According to an embodiment of the present invention, controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space includes: if the steam pressure value is greater than the first preset pressure threshold, then control the pressure relief valve to open to make the pressure relief flow path conduct the cooking space and the steam storage space.

[0011] According to an embodiment of the present invention, controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space further includes: if the steam pressure value is greater than the second preset pressure threshold, obtain the duration for which the steam pressure value is greater than the second preset pressure threshold; if the duration is greater than the first preset duration, then control the pressure relief valve to open to make the pressure relief flow path conduct the cooking space and the steam storage space, wherein the second preset pressure threshold is less than the first preset pressure threshold.

[0012] According to an embodiment of the present invention, after the pressure relief valve is opened to make the pressure relief flow path conduct the cooking space and the steam storage space, the method further includes: if the steam pressure value is less than or equal to the third preset pressure threshold of the pressure relief valve, then control the pressure relief valve to close to make the pressure relief flow path cut off the cooking space and the steam storage space, wherein the third preset pressure threshold is less than the second preset pressure threshold.

[0013] According to an embodiment of the present invention, after the pressure relief valve is opened to make the pressure relief flow path conduct the cooking space and the steam storage space, the method further includes: obtain the opening duration of the pressure relief valve; if the opening duration is greater than the second preset duration, then control the pressure relief valve to close to make the pressure relief flow path cut off the cooking space and the steam storage space.

[0014] According to an embodiment of the present invention, the method further includes: obtaining the cooking duration of the cooking device; if the cooking duration is less than or equal to a third preset duration, controlling the pressure relief valve to close; if the cooking duration is greater than the third preset duration and less than or equal to a fourth preset duration, obtaining the steam pressure value in the steam storage space, and controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space; if the cooking duration is greater than the fourth preset duration, controlling the pressure relief valve to close.

[0015] According to an embodiment of the present invention, the third preset duration is the duration for the temperature in the cooking space to rise to a preset temperature, and the difference between the fourth preset duration and the third preset duration is the duration for the temperature in the cooking space to remain at the preset temperature.

[0016] To achieve the above object, an embodiment of the second aspect of the present invention provides a computer-readable storage medium, on which a control program of a cooking device is stored. When the control program of the cooking device is executed by a processor, it implements the control method of the cooking device in the embodiment of the first aspect.

[0017] According to the computer-readable storage medium of the embodiment of the present invention, through the above control method of the cooking device, the communication hole in the cooking device can achieve normal steam discharge to steam-heat the cooking space. And when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space. The pressure relief flow path serves as a second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow path helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also helps to improve the cooking effect.

[0018] To achieve the above object, an embodiment of the third aspect of the present invention provides a control device for a cooking device. The cooking device includes a pot lid and a pot body. The pot lid is arranged on the pot body and jointly defines a cooking space with the pot body. A steam storage space is formed in the pot body. The pot body has a communication hole and a pressure relief flow path. The communication hole communicates the cooking space and the steam storage space to discharge the steam in the steam storage space to the cooking space through the communication hole. A pressure relief valve is provided in the pressure relief flow path. The device includes:

[0019] An acquisition module for acquiring the steam pressure value in the steam storage space;

[0020] A control module for controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space.

[0021] The control device of the cooking apparatus according to an embodiment of the present invention enables the communication hole in the cooking apparatus to achieve normal steam discharge for steam heating of the cooking space, and the control module controls the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space. When the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow channel conduct the cooking space and the steam storage space, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the reuse of the excess steam can be realized, which is beneficial to improving the cooking effect.

[0022] To achieve the above object, an embodiment of the fourth aspect of the present invention provides a controller, including: a memory, a processor, and a control program of the cooking apparatus stored on the memory and executable on the processor. When the processor executes the program, the control method of the cooking apparatus in the embodiment of the first aspect is realized.

[0023] According to the controller of the embodiment of the present invention, through the above control method of the cooking apparatus, the communication hole in the cooking apparatus can achieve normal steam discharge for steam heating of the cooking space, and when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow channel conduct the cooking space and the steam storage space. The pressure relief flow channel serves as a second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow channel helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. Not only the reuse of the excess steam is realized, but also it is beneficial to improving the cooking effect.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0025] Figure 1 It is a schematic flow chart of the control method of the cooking apparatus according to an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the cooking apparatus according to an embodiment of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the control device of the cooking apparatus according to an embodiment of the present invention;

[0028] Figure 4 It is a schematic block diagram of the controller according to an embodiment of the present invention. Detailed Embodiments

[0029] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] It should be noted that steam cooking devices are widely used in home cooking due to their characteristics such as uniform heating, health, and convenience. In related technologies, the cooking device uses an electric heating component to heat water to generate steam, and then the steam is diverted through the air outlet of the steam storage cavity to the cooking space, thereby realizing steam cooking of food. However, when the exhaust speed of the air outlet is less than the amount of steam generated by the electric heating component, the steam that cannot be discharged in time continuously accumulates in the steam storage cavity, resulting in a sharp increase in the steam pressure in the steam storage cavity, greatly increasing the risk of steam leakage or explosion of the cooking device.

[0031] In view of the problem in the above-mentioned prior art that the steam in the steam storage cavity continuously accumulates and cannot be discharged in time, resulting in a sharp increase in steam pressure, the control method of the cooking device proposed in the embodiments of the present application can control the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space. When the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, it can also realize the reuse of excess steam, which is beneficial to improving the cooking effect.

[0032] The control method of the cooking device proposed in the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033] Figure 1 It is a schematic flow chart of the control method of the cooking device according to an embodiment of the present invention.

[0034] As a specific example, execute Figure 1 The cooking device for executing the control method of the cooking device shown in Figure 2 is as shown in Figure 2 It is a schematic diagram of a cooking device according to an embodiment of the present invention. Among them, the cooking device 100 includes a pot lid 1 and a pot body 2. The pot lid 1 is arranged on the pot body 2 and jointly defines a cooking space 3 with the pot body 2. A steam storage space 21 is formed in the pot body 2. The pot body has a communication hole 22 and a pressure relief flow path 23. The communication hole 22 communicates the cooking space 3 and the steam storage space 21, so that the steam in the steam storage space 21 is discharged to the cooking space 3 through the communication hole 22. A pressure relief valve 4 is provided in the pressure relief flow path 23.

[0035] Specifically, as shown inFigure 1 As shown, the pot lid 1 and the pot body 2 are detachable. Specifically, one end of the pot lid 1 is open, the pot body 2 is provided with a groove, and the side wall of the pot lid 1 is fitted with the groove of the pot body 2 so that the pot lid 1 covers the pot body 2. After the pot lid 1 and the pot body 2 are fitted together, a cooking space 3 is formed. Among them, a steaming plate 6 is provided in the cooking space 3, and food can be placed on the steaming plate 6.

[0036] Further, the pot body 2 is used to generate steam and guide the steam in the pot body 2 to the cooking space 3. Specifically, a steam storage space 21 is formed in the pot body 2. It can be understood that the steam storage space 21 is used to store the steam generated inside the pot body 2. That is to say, the steam generated in the pot body 2 first enters the steam storage space 21. Further, the pot body 2 also has a communication hole 22, and the communication hole 22 communicates the cooking space 3 and the steam storage space 21. With such a setting, the steam in the steam storage space 21 enters the cooking space 3 through the communication hole 22 to heat the food in the cooking space 3. Further, a pressure relief valve 4 is also provided in the pressure relief flow channel 23 of the pot body 2. When the pressure relief valve 4 is opened, the pressure relief flow channel 23 conducts the cooking space 3 and the steam storage space 21. When the pressure relief valve 4 is closed, the pressure relief flow channel 23 is blocked, so that the pressure relief flow channel between the cooking space 3 and the steam storage space 21 can be cut off.

[0037] As Figure 1 shown, the control method of this cooking device includes the following steps:

[0038] Step S101, obtain the steam pressure value in the steam storage space.

[0039] Specifically, in the initial stage of cooking, since the water temperature is relatively low, the amount of steam in the steam storage space is small, and the steam in the steam storage space is discharged from the communication hole to the cooking space. At this time, basically no additional pressure is generated in the steam storage space. In the middle stage of cooking, as the water temperature rises, the amount of steam in the steam storage space gradually increases, and the steam in the steam storage space cannot be discharged in time through the communication hole. At this time, the steam in the steam storage space accumulates continuously, resulting in a sharp increase in the steam pressure in the steam storage space. Based on this, a pressure sensor can be set in the steam storage space to obtain the steam pressure value in the steam storage space in real time.

[0040] It should be noted that the steam pressure value in the steam storage space can be adjusted. The steam pressure value in the steam storage space is related to the steam generation amount and the steam temperature. By adjusting the steam generation amount and / or the steam temperature, the steam pressure value in the steam storage space can be adjusted. It can be understood that the larger the steam generation amount and the higher the steam temperature, the greater the steam pressure value in the steam storage space, and vice versa. For example, the steam pressure value in the steam storage space can be increased by increasing the steam generation amount, or by increasing the steam temperature, or by increasing both the steam generation amount and the steam temperature at the same time.

[0041] Step S102: Control the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space.

[0042] Specifically, control the opening or closing of the pressure relief valve according to the steam pressure value, so that the pressure relief flow path conducts or cuts off the cooking space and the steam storage space. Thus, when the steam pressure in the steam storage space is relatively high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space. The pressure relief flow path serves as the second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged through the pressure relief flow path helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also helps to improve the cooking effect.

[0043] In some embodiments of the present invention, controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space includes: if the steam pressure value is greater than the first preset pressure threshold, control the pressure relief valve to open to make the pressure relief flow path conduct the cooking space and the steam storage space.

[0044] Based on the above description, when the steam in the steam storage space cannot be discharged in time through the communication hole, the steam in the steam storage space accumulates continuously, resulting in an increase in the steam pressure value in the steam storage space. When the steam pressure value is greater than the first preset pressure threshold, for example, the second preset pressure threshold is 2 standard atmospheres, that is, when the steam pressure value in the steam storage space is greater than 2 standard atmospheres, control the pressure relief valve to open. At this time, the pressure relief flow path serves as the second air outlet. That is to say, the steam in the steam storage space is discharged through the communication hole and the pressure relief flow path at the same time, thus greatly improving the steam discharge rate, quickly reducing the steam in the steam storage space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion, and at the same time, it can also realize the reuse of excess steam, which is beneficial to improving the cooking effect.

[0045] It is understandable that when the pressure relief valve is opened, the steam in the steam storage space is ejected through the pressure relief port into the cooking space, realizing the pressure ejection of the steam and giving the steam an initial velocity. The steam ejects from the pressure relief port in the pressure relief valve, and the pressure relief port has a certain cross-sectional area. It should be noted that before the pressure relief valve is opened, the steam in the steam storage space only flows into the cooking space through the communication hole. Obtain the steam flow rate of the steam storage space flowing into the cooking space through the communication hole, and control the steam ejection speed of the pressure relief valve according to the steam flow rate, the first preset pressure threshold, and the cross-sectional area of the pressure relief port. Specifically, the steam ejection speed satisfies the following relational expression:

[0046] v≤p0*s / m0

[0047] Wherein, v is the steam ejection speed, p0 is the first preset pressure threshold, s is the cross-sectional area of the pressure relief port, and m0 is the steam flow rate.

[0048] That is to say, the steam ejection speed of the pressure relief valve is controlled within a certain range. At the same time, since the steam ejects from the steam storage space into the cooking space at a certain speed, the convective heat transfer efficiency in the cooking space is enhanced, which is beneficial to further improving the cooking effect.

[0049] It should be noted that the pressure relief valve in the pressure relief flow path is a normally closed pressure relief valve, that is, in the initial state, the pressure relief valve is in the closed state. If the steam pressure value does not reach the preset pressure threshold, for example, the steam pressure value is less than or equal to the first preset pressure threshold, the pressure relief valve will not open, thus avoiding frequent opening of the pressure relief valve.

[0050] In some embodiments of the present invention, controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space further includes: if the steam pressure value is greater than the second preset pressure threshold, obtain the duration for which the steam pressure value is greater than the second preset pressure threshold; if the duration is greater than the first preset duration, then control the pressure relief valve to open so that the pressure relief flow path conducts the cooking space and the steam storage space, wherein the second preset pressure threshold is less than the first preset pressure threshold.

[0051] That is to say, when the steam pressure value in the steam storage space does not reach the first preset pressure, but the steam pressure value is greater than the second preset pressure threshold. For example, the first preset pressure threshold is 2 standard atmospheres, and the second preset pressure threshold is 1.8 standard atmospheres. That is, when the steam pressure value in the steam storage space is less than or equal to 2 standard atmospheres but greater than 1.8 standard atmospheres, obtain the duration during which the steam pressure value is greater than 1.8 standard atmospheres. When the duration is greater than the first preset duration, for example, the first preset duration is 30S. That is, when the duration during which the steam pressure value is greater than 1.8 standard atmospheres is greater than 30S, control the pressure relief valve to open. At this time, the pressure relief flow channel serves as the second air outlet, and the steam in the steam storage space is discharged through the communication hole and the pressure relief flow channel simultaneously, accelerating the steam discharge rate and realizing the pressure relief protection of the steam storage space.

[0052] In some embodiments of the present invention, after the pressure relief valve is opened to conduct the cooking space and the steam storage space through the pressure relief flow channel, the method further includes: if the steam pressure value is less than or equal to the third preset pressure threshold of the pressure relief valve, then control the pressure relief valve to close to cut off the cooking space and the steam storage space, where the third preset pressure threshold is less than the second preset pressure threshold.

[0053] Specifically, when the pressure relief valve is opened to relieve the pressure of the steam in the steam storage space through the pressure relief flow channel, the pressure sensor continuously obtains the steam pressure in the steam storage space. It can be understood that as the steam in the steam storage space is discharged to the cooking space through the pressure relief flow channel, the steam pressure in the steam storage space gradually decreases. When the steam pressure value is less than or equal to the third preset pressure threshold of the pressure relief valve, for example, the third preset pressure threshold is 1.2 standard atmospheres. That is, when the steam pressure value in the steam storage space is less than or equal to 1.2 standard atmospheres, control the pressure relief valve to close. At this time, the pressure relief flow channel no longer conducts the cooking space and the steam storage space, and the steam in the steam storage space is only discharged to the cooking space through the communication hole. In this way, a pressure relief protection of the steam storage space is completed, reducing the risk of steam leakage or device explosion. At the same time, each pressure relief action can also realize the reuse of excess steam. Optionally, the pressure relief valve can be set at the relative position of the cold area of the cooking space, so as to release the excess steam to the cold area of the cooking space correspondingly, improving the cooking effect, making the food more evenly and quickly cooked, and being beneficial to improving the cooking effect.

[0054] In some embodiments of the present invention, after the pressure relief valve is opened to conduct the cooking space and the steam storage space through the pressure relief flow channel, the method further includes: obtaining the opening duration of the pressure relief valve; if the opening duration is greater than the second preset duration, then control the pressure relief valve to close to cut off the cooking space and the steam storage space.

[0055] Specifically, when the pressure relief valve is opened to relieve the pressure of the steam in the steam storage space through the pressure relief flow path, as the steam in the steam storage space is discharged to the cooking space through the pressure relief flow path, the steam pressure in the steam storage space gradually decreases. However, during the pressure relief process of the pressure relief valve, it is possible that the amount of steam generated in the steam storage space is basically the same as the amount of steam discharged from the steam storage space to the cooking space. At this time, the steam pressure in the steam storage space may no longer decrease, but a dynamic balance is achieved. For example, when the steam pressure value in the steam storage space drops to 1.5 standard atmospheric pressures, the amount of steam generated in the steam storage space is the same as the amount of steam discharged from the steam storage space to the cooking space. Then, the steam pressure value in the steam storage space will never reach 1.2 standard atmospheric pressures (the third preset pressure threshold). Therefore, it is necessary to obtain the opening duration of the pressure relief valve and control whether the pressure relief valve is closed according to the opening duration of the hydraulic valve. When the opening duration of the pressure relief valve is greater than the second preset duration, for example, the second preset duration is 1 minute. That is to say, when the opening duration of the pressure relief valve is greater than 1 minute, regardless of whether the steam pressure value in the steam storage space reaches 1.2 standard atmospheric pressures, control the pressure relief valve to close. At this time, the steam is only discharged to the cooking space through the communication hole. Such a setting can avoid the fatigue damage of the pressure relief valve caused by the long-term opening of the pressure relief valve and is beneficial to improving the service life of the pressure relief valve.

[0056] Further, as a specific example, the cooking device mainly has three operating stages. In the first stage, the amount of steam generated in the steam storage space is small, the steam pressure in the steam storage space is small, and the steam in the steam storage space is only discharged to the cooking space through the communication hole. In the second stage, as the amount of steam in the steam storage space gradually increases, the steam in the steam storage space accumulates continuously, resulting in a sharp increase in the steam pressure in the steam storage space. When the steam pressure value in the steam storage space meets certain conditions, for example, the steam pressure value is greater than the first preset pressure threshold, or when the steam pressure value is greater than the second preset pressure threshold and less than the first preset pressure threshold, but the duration is greater than the first preset duration, control the pressure relief valve to open. At this time, the pressure relief flow path acts as the second air outlet. That is to say, the steam in the steam storage space is discharged through the communication hole and the pressure relief flow path at the same time. In the third stage, after the pressure relief valve is opened to connect the cooking space and the steam storage space, when the steam pressure value in the steam storage space meets certain conditions, or when the opening duration of the pressure relief valve meets certain conditions, for example, the steam pressure value is less than or equal to the third preset pressure threshold of the pressure relief valve, or when the opening duration of the pressure relief valve is greater than the second preset duration, control the pressure relief valve to close. At this time, the steam resumes to be discharged from the steam storage space to the cooking space only through the communication hole.

[0057] Thus, the repeated accumulation and discharge of steam in the steam storage space are realized, the excessive steam pressure in the steam storage space is avoided, the pressure relief protection of the steam storage space is achieved, the risk of steam leakage or device explosion is reduced, and at the same time, the reuse of excess steam can be realized, which is beneficial to improving the cooking effect.

[0058] It should be noted that there can be multiple pressure relief channels, and a pressure relief valve is provided in each pressure relief channel. During the pressure relief process, one or more of them can be controlled to relieve pressure to adjust the pressure relief speed of the steam. Such a setting is beneficial to improving the pressure relief efficiency and shortening the pressure relief time.

[0059] In some embodiments of the present invention, the method further includes: obtaining the cooking duration of the cooking device. If the cooking duration is less than or equal to the third preset duration, the pressure relief valve is controlled to close. If the cooking duration is greater than the third preset duration and less than or equal to the fourth preset duration, the steam pressure value in the steam storage space is obtained, and the pressure relief valve is controlled according to the steam pressure value to make the pressure relief channel conduct or cut off the cooking space and the steam storage space. If the cooking duration is greater than the fourth preset duration, the pressure relief valve is controlled to close.

[0060] Specifically, according to the cooking duration of the cooking device, the operation of the cooking device can be divided into three stages. In the first stage, since the amount of steam generated in the steam storage space is small when the cooking device starts to operate initially, the steam pressure in the steam storage space is small, and no additional pressure will be generated in the steam storage space for a period of time. Therefore, the pressure relief valve is controlled to be closed within the third preset duration from the start of cooking. At this time, the steam is only discharged to the cooking space through the communication hole. For example, the third preset time can be 2 minutes, that is, the pressure relief valve is always controlled to be in the closed state within 2 minutes. In the second stage, when the cooking duration of the cooking device is greater than the third preset duration and less than or equal to the fourth preset duration. For example, the fourth preset time can be 10 minutes, that is, when the cooking duration of the cooking device is greater than 2 minutes and less than or equal to 10 minutes, the cooking device controls the opening or closing of the pressure relief valve according to the steam pressure value in the steam storage space. When the steam pressure value in the steam storage space is too high, opening the pressure relief valve can relieve the pressure in the steam storage space. The pressure relief flow channel serves as the second exhaust port, and the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, when the steam pressure value in the steam storage space drops to a safe state, the pressure relief valve is controlled to be closed, and the steam is only discharged to the cooking space through the communication hole. In the third stage, the pressure relief valve is controlled to be closed when the cooking duration is greater than the fourth preset duration. Specifically, that is, when the cooking duration of the cooking device is greater than 10 minutes, at this time the cooking device is basically in the final stage of cooking, the amount of steam generated is small, and there is basically no situation of large pressure. At this time, the pressure relief valve is controlled to be in the closed state, reducing the number of times the pressure relief valve is opened, which is beneficial to improving the service life of the pressure relief valve.

[0061] In some embodiments of the present invention, the third preset duration is the duration for the temperature in the cooking space to rise to the preset temperature, and the difference between the fourth preset duration and the third preset duration is the duration for the temperature in the cooking space to remain at the preset temperature. That is to say, the third preset duration refers to the time for the temperature in the cooking cavity to rise to the preset temperature. For example, the preset temperature can be set to 98 °C, 100 °C, etc. That is, the third preset duration is the duration for the temperature in the cooking cavity to rise from room temperature to the preset temperature. Among them, the third preset duration can be adjusted according to the heating rate. For example, when the amount of water is large, the duration for the temperature in the cooking cavity to rise from room temperature to the preset temperature is longer, and when the amount of water is small, the duration for the temperature in the cooking cavity to rise from room temperature to the preset temperature is shorter. That is to say, before the temperature in the cooking cavity rises to the preset temperature, the pressure relief valve is controlled to be in the closed state. Further, the difference between the fourth preset duration and the third preset duration is the duration for the temperature in the cooking space to remain at the preset temperature. Among them, the duration for the temperature in the cooking space to remain at the preset temperature can be a fixed value, so as to ensure that the steam pressure value in the steam storage space can be obtained in real time within a fixed period of time, and the opening or closing of the pressure relief valve is controlled according to the steam pressure value. When the cooking duration is greater than the fourth preset duration, at this time, the cooking device is basically in the final stage of cooking. Generally speaking, the cooking temperature usually drops below the preset temperature, and in this case, the situation of large steam pressure is less likely to occur. Therefore, it is only necessary to control the pressure relief valve to be in the closed state.

[0062] In summary, according to the control method of the cooking device according to the embodiments of the present invention, the communication hole in the cooking device can realize normal steam discharge to steam-heat the cooking space. And when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow channel conduct the cooking space and the steam storage space. The pressure relief flow channel acts as the second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to realize pressure relief protection of the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow channel helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also helps to improve the cooking effect.

[0063] Figure 3 FIG. is a schematic structural diagram of a control device of a cooking device according to an embodiment of the present invention. Among them, the cooking device 100 includes a pot lid 1 and a pot body 2. The pot lid 1 is arranged on the pot body 2 and jointly defines a cooking space 3 with the pot body 2. A steam storage space 21 is formed in the pot body 2. The pot body has a communication hole 22 and a pressure relief flow channel 23. The communication hole 22 communicates the cooking space 3 and the steam storage space 21, so that the communication hole 22 discharges the steam in the steam storage space 21 into the cooking space 3. A pressure relief valve 4 is arranged in the pressure relief flow channel 23.

[0064] AsFigure 3 As shown, the control device 200 of the cooking device includes: an acquisition module 210 and a control module 220.

[0065] Among them, the acquisition module 100 is used to acquire the steam pressure value in the steam storage space, and the control module 200 is used to control the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space.

[0066] In some embodiments of the present invention, the control module 220 is specifically configured to: if the steam pressure value is greater than the first preset pressure threshold, control the pressure relief valve to open so that the pressure relief flow path conducts the cooking space and the steam storage space.

[0067] In some embodiments of the present invention, the control module 220 is specifically configured to: if the steam pressure value is greater than the second preset pressure threshold, acquire the duration during which the steam pressure value is greater than the second preset pressure threshold; if the duration is greater than the first preset duration, control the pressure relief valve to open so that the pressure relief flow path conducts the cooking space and the steam storage space, where the second preset pressure threshold is less than the first preset pressure threshold.

[0068] In some embodiments of the present invention, the control module 220 is specifically configured to: if the steam pressure value is less than or equal to the third preset pressure threshold of the pressure relief valve, control the pressure relief valve to close so that the pressure relief flow path cuts off the cooking space and the steam storage space, where the third preset pressure threshold is less than the second preset pressure threshold.

[0069] In some embodiments of the present invention, the acquisition module 210 is specifically configured to: acquire the opening duration of the pressure relief valve, and the control module 220 is specifically configured to: if the opening duration is greater than the second preset duration, control the pressure relief valve to close so that the pressure relief flow path cuts off the cooking space and the steam storage space.

[0070] In some embodiments of the present invention, the acquisition module 210 is specifically configured to: acquire the cooking duration of the cooking device, and the control module 220 is specifically configured to: if the cooking duration is less than or equal to the third preset duration, control the pressure relief valve to close, if the cooking duration is greater than the third preset duration and less than or equal to the fourth preset duration, acquire the steam pressure value in the steam storage space, and control the pressure relief valve according to the steam pressure value to make the pressure relief flow path conduct or cut off the cooking space and the steam storage space, if the cooking duration is greater than the fourth preset duration, control the pressure relief valve to close.

[0071] In some embodiments of the present invention, the third preset duration is the duration for the temperature in the cooking space to rise to the preset temperature, and the difference between the fourth preset duration and the third preset duration is the duration for the temperature in the cooking space to remain at the preset temperature.

[0072] It should be noted that for the description of the control device of the cooking device in this application, please refer to the description of the control method of the cooking device in this application, and specific details will not be elaborated here.

[0073] According to the control device of the cooking device in an embodiment of the present invention, the communication hole in the cooking device can achieve normal steam discharge to steam-heat the cooking space, and the control module controls the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space. When the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow channel conduct the cooking space and the steam storage space, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, it can also realize the reuse of excess steam, which is beneficial to improving the cooking effect.

[0074] Figure 4 It is a schematic block diagram of a controller according to an embodiment of the present invention. As Figure 4 shown, the controller 300 includes: a memory 310 and a processor 320. Among them, the control program of the cooking device is stored on the memory 310 and can run on the processor 320. When the processor 320 executes the program, the above-mentioned control method of the cooking device is realized.

[0075] According to the controller in an embodiment of the present invention, through the above-mentioned control method of the cooking device, the communication hole in the cooking device can achieve normal steam discharge to steam-heat the cooking space, and when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow channel conduct the cooking space and the steam storage space. The pressure relief flow channel serves as a second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow channel helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam, but also is beneficial to improving the cooking effect.

[0076] In addition, an embodiment of the present invention also provides a computer-readable storage medium, on which a control program of the cooking device is stored. When the control program of the cooking device is executed by a processor, the control method of the cooking device in the embodiment of the first aspect is realized.

[0077] According to the computer-readable storage medium of the embodiments of the present invention, through the above control method of the cooking device, the communication holes in the cooking device can achieve normal steam discharge to steam-heat the cooking space. And when the steam pressure in the steam storage space is too high, the pressure relief valve opens to make the pressure relief flow path conduct the cooking space and the steam storage space. The pressure relief flow path serves as the second exhaust port, so that the steam in the steam storage space can be quickly discharged into the cooking space to achieve pressure relief protection for the steam storage space, reducing the risk of steam leakage or device explosion. At the same time, the pressure relief steam discharged from the pressure relief flow path helps to disperse the steam in the cooking space, making the steam in the cooking space more uniform and improving the heating uniformity. It not only realizes the reuse of excess steam but also helps to improve the cooking effect.

[0078] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in combination with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection part with one or more wirings (electronic device), a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, then editing, interpreting, or otherwise processing it as appropriate, and then storing it in a computer memory.

[0079] It should be understood that various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one of the following techniques known in the art or a combination thereof can be used: discrete logic circuits having logic gate circuits for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0080] 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0081] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0082] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control method for a cooking device, characterized in that, The cooking device includes a pot lid and a pot body. The pot lid is provided on the pot body and jointly defines a cooking space with the pot body. A steam storage space is formed inside the pot body. The pot body has a communication hole and a pressure relief flow channel. The communication hole communicates the cooking space and the steam storage space, so that the communication hole discharges the steam in the steam storage space into the cooking space. A pressure relief valve is provided in the pressure relief flow channel. The method includes: Obtaining the steam pressure value in the steam storage space; Controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space.

2. The method according to claim 1, wherein The controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space includes: If the steam pressure value is greater than a first preset pressure threshold, controlling the pressure relief valve to open so that the pressure relief flow channel conducts the cooking space and the steam storage space.

3. The method according to claim 2, characterized in that The controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space further includes: If the steam pressure value is greater than a second preset pressure threshold, obtaining the duration for which the steam pressure value is greater than the second preset pressure threshold; If the duration is greater than a first preset duration, controlling the pressure relief valve to open so that the pressure relief flow channel conducts the cooking space and the steam storage space, where the second preset pressure threshold is less than the first preset pressure threshold.

4. The method according to claim 3, characterized in that After the pressure relief valve is opened to make the pressure relief flow channel conduct the cooking space and the steam storage space, the method further includes: If the steam pressure value is less than or equal to a third preset pressure threshold of the pressure relief valve, controlling the pressure relief valve to close so that the pressure relief flow channel cuts off the cooking space and the steam storage space, where the third preset pressure threshold is less than the second preset pressure threshold.

5. The method according to claim 4, wherein After the pressure relief valve is opened to make the pressure relief flow channel conduct the cooking space and the steam storage space, the method further includes: Obtaining the opening duration of the pressure relief valve; If the opening duration is greater than a second preset duration, controlling the pressure relief valve to close so that the pressure relief flow channel cuts off the cooking space and the steam storage space.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Obtaining the cooking duration of the cooking device; If the cooking duration is less than or equal to a third preset duration, controlling the pressure relief valve to close; If the cooking duration is greater than the third preset duration and less than or equal to a fourth preset duration, obtaining the steam pressure value in the steam storage space, and controlling the pressure relief valve according to the steam pressure value to make the pressure relief flow channel conduct or cut off the cooking space and the steam storage space; If the cooking duration is greater than the fourth preset duration, controlling the pressure relief valve to close.

7. The method according to claim 6, wherein The third preset duration is the duration for the temperature in the cooking space to rise to a preset temperature, and the difference between the fourth preset duration and the third preset duration is the duration for the temperature in the cooking space to remain at the preset temperature.

8. A computer-readable storage medium, characterized in that, It stores a control program of a cooking device, and when the control program of the cooking device is executed by a processor, it implements the control method of the cooking device according to any one of claims 1-7.

9. A control device for a cooking apparatus, characterized in that, The cooking device includes a pot lid and a pot body. The pot lid is arranged on the pot body and jointly defines a cooking space with the pot body. A steam storage space is formed in the pot body. The pot body has a communication hole and a pressure relief flow channel. The communication hole communicates the cooking space and the steam storage space so that the communication hole discharges the steam in the steam storage space to the cooking space. A pressure relief valve is arranged in the pressure relief flow channel. The device includes: An acquisition module, which is used to acquire the steam pressure value in the steam storage space; A control module, which is used to control the pressure relief valve according to the steam pressure value so that the pressure relief flow channel conducts or cuts off the cooking space and the steam storage space.

10. A controller, characterized in that, Including: A memory, a processor, and a control program of a cooking device stored on the memory and operable on the processor. When the processor executes the program, it implements the control method of the cooking device according to any one of claims 1-7.

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