Cooking appliance pressure relief control method, device, storage medium and cooking appliance

Abstract

The present invention provides a method, device, storage medium, and cooking appliance for controlling pressure relief of a cooking appliance. The method comprises: identifying the boiling point of the cooking appliance during a pre-boiling phase; selecting a pressure relief mode corresponding to the current altitude environment state of the cooking appliance based on the boiling point, wherein the boiling point of the cooking appliance decreases as the current altitude environment state of the cooking appliance increases; and controlling the cooking appliance to perform a corresponding pressure relief operation in the pressure relief mode corresponding to the current altitude environment state during the pressure relief phase. The present invention executes a pressure relief mode corresponding to the altitude environment state based on the current altitude environment state of the cooking appliance, effectively avoiding the problem of food spillage during high-altitude pressure relief caused by existing pressure relief operations that fail to distinguish between high and low altitudes. It also shortens the pressure relief duration and improves the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a pressure relief control method, device, storage medium and cooking appliance for a cooking appliance. Background Art

[0002] With the development and progress of science and technology, the design of cooking utensils has become more user-friendly. Many cooking utensils can perform pressure cooking, which not only makes the food taste softer and more glutinous and the cooking effect is better, but also saves cooking time and improves the user experience. Due to the different altitudes in different regions and the different boiling points of water, the pressure inside the cooking utensils is different under the same temperature conditions. However, existing cooking utensils do not differentiate the pressure relief logic according to the different altitudes of the environment during the cooking process. In actual use, the same pressure relief control logic is used in high-altitude environments as in low-altitude environments, which can easily cause food to overflow during the pressure relief process. Conversely, if the problem of food overflow at high altitudes is taken into consideration, the pressure relief control logic suitable for high-altitude environments will cause the pressure relief time to be longer, thereby extending the cooking time and worsening the user experience. Summary of the Invention

[0003] The present invention proposes a pressure relief control method, device, storage medium and cooking appliance for a cooking appliance, so as to solve the problem in the prior art that the pressure relief mode of the cooking appliance is not differentiated according to the altitude environment state of the cooking appliance, resulting in food spillage or long pressure relief time.

[0004] One aspect of the present invention provides a method for controlling pressure relief of a cooking appliance, the method comprising:

[0005] Identify the boiling temperature of the cooking appliance during the pre-boil phase;

[0006] selecting a pressure relief mode corresponding to the current altitude environment state of the location of the cooking appliance according to the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state of the location of the cooking appliance increases;

[0007] During the pressure relief stage, the cooking appliance is controlled to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state.

[0008] Furthermore, the cooking appliance includes an air-cooling pressure relief device and an exhaust pressure relief device;

[0009] The step of selecting a pressure relief mode corresponding to the current altitude environment state of the cooking appliance according to the boiling point temperature includes:

[0010] Determining the magnitude relationship between the boiling point temperature and a preset first temperature threshold;

[0011] The pressure relief mode corresponding to the current altitude environment state and executed in the pressure relief stage is selected according to the magnitude relationship between the boiling point temperature and the preset first temperature threshold, including the pressure relief sub-stages and the operating parameters of the air-cooled pressure relief device and / or the exhaust pressure relief device in each pressure relief sub-stage.

[0012] Furthermore, when the boiling point temperature is lower than the first temperature threshold, the pressure relief mode includes:

[0013] In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate until the inner cavity temperature of the cooking appliance reaches a preset second temperature threshold value T2, where T2 is ≤ 106°C;

[0014] In the second pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset third temperature threshold value T3, where T3 is ≤ 100°C;

[0015] In the third pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fourth temperature threshold value T4, where T4≤90°C;

[0016] The operating duty cycle of the exhaust pressure relief device in the second pressure relief sub-stage is lower than the operating duty cycle in the third pressure relief sub-stage. The operating duty cycle of the exhaust pressure relief device is the ratio of the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle to the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle.

[0017] Furthermore, in the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to be cooled with a first air-cooling power P 风1 Work, where P 风1 ≤Rated pressure relief power P 泄 ;

[0018] In the second pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a second air-cooling power P 风2 Work, control the exhaust pressure relief device to the first exhaust power P 排1 , the first exhaust duty cycle M: ​​N work, where M is the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle, N is the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle, 4 / 5P 泄 ≤P 风2 ≤P 泄 , 1 / 5P 泄 ≤P 排1 ≤1 / 4P 泄 , 1 / 30≤M:N≤1 / 20;

[0019] In the third pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a third air-cooling power P 风3 Working, the exhaust pressure relief device is at the second exhaust power P 排2 、The second exhaust duty cycle is X:Y, where 4 / 5P 泄 ≤P 风3 ≤P 泄 , 1 / 5P 泄 ≤P 排2 ≤1 / 4P 泄 , 1 / 25≤X:Y≤1 / 15.

[0020] Furthermore, when the boiling point temperature is greater than or equal to the first temperature threshold, the pressure relief mode includes:

[0021] In the fourth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fifth temperature threshold value T5, where T5 is ≤ 109°C;

[0022] In the fifth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset sixth temperature threshold value T6, where T6≤100°C;

[0023] The operating duty cycle of the exhaust pressure relief device in the fourth pressure relief sub-stage is lower than the operating duty cycle in the fifth pressure relief sub-stage.

[0024] Furthermore, in the fourth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a fourth air-cooling power P 风4 The exhaust pressure relief device works at the third exhaust power P 排3 、The third exhaust duty cycle is m:n, where 4 / 5P 泄 ≤P 风4 ≤P 泄 , 1 / 5P 泄 ≤P 排3 ≤1 / 4P 泄 , 1 / 30≤m:n≤1 / 20;

[0025] In the fifth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at the third air-cooling power P 风5 Working, the exhaust pressure relief device is at the fourth exhaust power P 排4 , the fourth exhaust duty cycle x:y working, where 4 / 5P 泄 ≤P 风5 ≤P 泄 , 1 / 5P 泄 ≤P 排4 ≤1 / 4P 泄 , 1 / 25≤x:y≤1 / 15.

[0026] Furthermore, identifying the boiling point of the cooking utensil in the pre-boiling stage includes:

[0027] When the inner cavity temperature of the cooking appliance reaches a seventh temperature threshold, controlling the heating component of the cooking appliance to stop working;

[0028] When the duration of the heating component of the cooking appliance being controlled to stop working reaches a first preset duration, the heating component is controlled to operate at a first heating power and a first heating duty cycle W:V, where W is the duration of the heating component working in one heating cycle, and V is the duration of the heating component stopping working in one heating cycle, and the first heating power is less than the rated power of the heating component;

[0029] When the inner cavity temperature of the cooking appliance reaches an eighth temperature threshold, obtaining a temperature rise time required for the inner cavity temperature to rise by a preset first temperature;

[0030] When the temperature rise time is greater than the preset boiling point maintenance time, it is determined that the current inner cavity temperature of the cooking appliance is the boiling point temperature.

[0031] Another aspect of the present invention provides a pressure relief control device for a cooking appliance, the device comprising:

[0032] A boiling point temperature recognition module, used to recognize the boiling point temperature of the cooking appliance during the pre-boiling stage;

[0033] an acquisition module, configured to select a pressure relief mode corresponding to a current altitude environment state at a location where the cooking appliance is located according to the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state at the location where the cooking appliance is located increases;

[0034] The pressure relief control module is configured to control the cooking appliance to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state during the pressure relief phase.

[0035] In addition, the present invention also provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of the above method when running.

[0036] In addition, the present invention also provides a cooking appliance, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0037] Embodiments of the present invention provide a pressure relief control method, device, storage medium, and cooking appliance for a cooking appliance. The method identifies the boiling point of the cooking appliance during the pre-boiling phase and selects a pressure relief mode corresponding to the current altitude environment state of the cooking appliance based on the boiling point, wherein the boiling point of the cooking appliance decreases as the current altitude environment state of the cooking appliance increases. Furthermore, during the pressure relief phase, the cooking appliance is controlled to perform a corresponding pressure relief operation using the pressure relief mode corresponding to the current altitude environment state. The present invention executes a pressure relief mode corresponding to the altitude environment state based on the current altitude environment state of the cooking appliance, effectively avoiding the problem of food spillage during the high-altitude pressure relief process caused by the existing pressure relief operation not distinguishing between high and low altitudes. The method also shortens the pressure relief time and improves the user experience.

[0038] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0040] Figure 1 A flow chart of a pressure relief control method for a cooking appliance provided by an embodiment of the present invention;

[0041] Figure 2 A schematic structural diagram of a pressure relief control device for a cooking appliance provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0043] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art in the art to which the present invention pertains. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with those in the context of the prior art and, unless specifically defined, will not be interpreted in an idealized or overly formal sense.

[0044] Figure 1 The flowchart of a pressure relief control method for a cooking appliance provided by an embodiment of the present invention is schematically shown. Figure 1 It can be seen that the pressure relief control method of the cooking appliance according to the embodiment of the present invention includes the following steps:

[0045] S1. Identify the boiling point temperature of the cooking appliance during the pre-boiling stage;

[0046] In an embodiment of the present invention, identifying the boiling point temperature of the cooking appliance in the pre-boiling stage specifically includes: when the inner cavity temperature of the cooking appliance reaches a seventh temperature threshold, controlling the heating component of the cooking appliance to stop working; when the duration for which the heating component of the cooking appliance is controlled to stop working reaches a first preset duration, controlling the heating component to operate at a first heating power and a first heating duty cycle W:V, wherein W is the duration for which the heating component works in one heating cycle, and V is the duration for which the heating component stops working in one heating cycle, and the first heating power is less than the rated power of the heating component; when the inner cavity temperature of the cooking appliance reaches an eighth temperature threshold, obtaining the temperature rise time required for the inner cavity temperature to rise by a preset first temperature; when the temperature rise time is greater than the preset boiling point maintenance time, determining that the current inner cavity temperature of the cooking appliance is the boiling point temperature.

[0047] Specifically, when the inner cavity temperature of the cooking appliance reaches the seventh temperature threshold, the pre-boiling stage begins. The seventh temperature threshold ranges from 75°C to 80°C. After reaching the seventh temperature threshold, the heating component of the cooking appliance stops working for a first preset time. The first preset time ranges from 60s to 90s to allow sufficient time for boiling point identification. When the inner cavity temperature reaches the eighth preset temperature, the material in the inner cavity of the cooking appliance is about to boil. At this time, according to the boiling point identification method of an embodiment of the present invention, the boiling point of the cooking appliance is identified. The eighth preset temperature ranges from 80°C to 85°C, the first temperature value can be 1°C-3°C, and the boiling point temperature setting duration is the minimum duration preset by the system when the boiling point temperature is reached. Because the rate of temperature increase slows when the temperature inside a cooking appliance exceeds the boiling point, the present invention uses multiple tests to determine the minimum duration required to reach the boiling point. When the duration of each increase in the cooking appliance's internal temperature by a first temperature value exceeds the set boiling point duration, the boiling point is determined to have been reached. In one specific embodiment of the present invention, the first temperature is set to 1°C, and the set boiling point duration ranges from 180s to 240s.

[0048] S2. selecting a pressure relief mode corresponding to the current altitude environment state of the location of the cooking appliance based on the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state of the location of the cooking appliance increases;

[0049] In an embodiment of the present invention, due to the different altitudes of the cooking utensils, the boiling points of the materials inside them are different. Since the boiling point of the high altitude environment is low, in order to achieve the same cooking effect of the cooking utensils as that in low altitude areas, it is necessary to increase the cooking pressure inside the cooking utensils. Since the pressure difference between the inside and outside of the cooking utensils is too large, if the same pressure relief mode is selected as in low altitude areas, it will cause a serious problem of food overflowing during exhaust and pressure relief due to the large pressure difference between the inside and outside of the cooking utensils. Therefore, the embodiment of the present invention selects different pressure relief modes according to the different altitudes. Since the boiling point temperature of the cooking utensils decreases as the current altitude environment state of the location of the cooking utensils increases, the embodiment of the present invention selects a pressure relief mode corresponding to the current altitude environment state of the location of the cooking utensils according to the boiling point temperature.

[0050] Furthermore, the cooking appliance of the embodiment of the present invention includes an air-cooled pressure relief device and an exhaust pressure relief device; the selection of the pressure relief mode corresponding to the current altitude environmental state of the location of the cooking appliance according to the boiling point temperature includes: judging the relationship between the boiling point temperature and a preset first temperature threshold; selecting the pressure relief mode corresponding to the current altitude environmental state executed in the pressure relief stage according to the relationship between the boiling point temperature and the preset first temperature threshold, including the pressure relief sub-stages and the operating parameters of the air-cooled pressure relief device and / or the exhaust pressure relief device in each pressure relief sub-stage.

[0051] In a specific embodiment of the present invention, the plain area is used as the dividing point. At this time, the value of the first temperature threshold is 100°C. Considering the error of the boiling point identification method, the first temperature threshold can be a value in the temperature range of 95°C to 105°C. As long as the boiling point temperature is lower than the first temperature threshold, the altitude environment of the location of the cooking appliance is considered to be at high altitude, and the high-altitude pressure relief mode is executed at this time; conversely, when the boiling point temperature is higher than or equal to the first temperature threshold, the altitude environment of the location of the cooking appliance is considered to be at ground altitude, and the low-altitude pressure relief mode is executed at this time.

[0052] S3. During the pressure relief phase, the cooking appliance is controlled to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state.

[0053] In an embodiment of the present invention, when the boiling point temperature is lower than the first temperature threshold, the pressure relief mode includes:

[0054] In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate until the inner cavity temperature of the cooking utensil reaches a preset second temperature threshold value T2, wherein T2≤106°C; in the second pressure relief sub-stage, the air-cooled pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking utensil reaches a preset third temperature threshold value T3, wherein T3≤100°C; in the third pressure relief sub-stage, the air-cooled pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking utensil reaches a preset fourth temperature threshold value T4, wherein T4≤90°C; wherein, the working duty cycle of the exhaust pressure relief device in the second pressure relief sub-stage is lower than the working duty cycle in the third pressure relief sub-stage, and the working duty cycle of the exhaust pressure relief device is the ratio of the duration of the exhaust pressure relief device working in one exhaust pressure relief cycle to the duration of the exhaust pressure relief device stopping working in one exhaust pressure relief cycle.

[0055] It should be noted that when the pressure difference between the interior of the cooking appliance and the external environment is large, the pressure relief efficiency of air-cooling pressure relief is higher than that of exhaust pressure relief. Air-cooling pressure relief can also effectively prevent overflow and reduce the noise generated during pressure relief (exhaust pressure relief noise is also relatively loud when the pressure difference between the interior of the cooking appliance and the external environment is large). Therefore, in this embodiment of the present invention, taking both noise and overflow into consideration, the high-altitude pressure relief mode is implemented when the boiling point temperature is less than the first temperature threshold, and the air-cooling pressure relief mode is implemented separately first.

[0056] Furthermore, in a specific embodiment of the present invention, in the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a first air-cooling power P 风1 Work, where P 风1 ≤Rated pressure relief power P 泄 In the second pressure relief sub-stage, the air-cooled pressure relief device is controlled to the second air-cooled power P 风2 Work, control the exhaust pressure relief device to the first exhaust power P 排1 , the first exhaust duty cycle M: ​​N work, where M is the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle, N is the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle, 4 / 5P 泄 ≤P 风2 ≤P 泄 , 1 / 5P 泄 ≤P 排1 ≤1 / 4P 泄 , 1 / 30≤M:N≤1 / 20; in the third pressure relief sub-stage, the air-cooled pressure relief device is controlled to use the third air-cooling power P 风3 Working, the exhaust pressure relief device is at the second exhaust power P 排2 、The second exhaust duty cycle is X:Y, where 4 / 5P 泄 ≤P 风3 ≤P 泄 , 1 / 5P 泄 ≤P 排2 ≤1 / 4P 泄 , 1 / 25≤X:Y≤1 / 15.

[0057] It should be noted that, since the efficiency of air-cooling pressure relief is higher than that of exhaust pressure relief when the pressure difference between the internal pressure of the cooking appliance and the external environment is large, in the embodiment of the present invention, as the pressure difference between the internal pressure of the cooking appliance and the external environment gradually decreases, the power of air-cooling pressure relief can be gradually reduced and the power of exhaust pressure relief can be increased. Moreover, since the lower the pressure difference between the internal and external pressures, the less likely it is to cause overflow, the duty cycle of exhaust pressure relief can be increased as the pressure difference between the internal pressure of the cooking appliance and the external environment gradually decreases.

[0058] Furthermore, in an embodiment of the present invention, when the boiling point temperature is greater than or equal to the first temperature threshold, the pressure relief mode includes: a fourth pressure relief sub-stage, controlling the air-cooled pressure relief device and the exhaust pressure relief device to work together until the inner cavity temperature of the cooking utensil reaches a preset fifth temperature threshold T5, where T5≤109°C; a fifth pressure relief sub-stage, controlling the air-cooled pressure relief device and the exhaust pressure relief device to work together until the inner cavity temperature of the cooking utensil reaches a preset sixth temperature threshold T6, where T6≤100°C; wherein, the working duty cycle of the exhaust pressure relief device in the fourth pressure relief sub-stage is lower than the working duty cycle in the fifth pressure relief sub-stage.

[0059] It's important to note that when the cooking appliance is at low altitude, a combination of exhaust and air-cooling pressure relief effectively prevents spillage while shortening the duration of the pressure relief. Because exhaust pressure relief provides a more effective overall pressure relief, while ensuring food does not spill, the exhaust pressure relief power and duration of the pressure relief system are appropriately increased as the pressure in the cooking appliance decreases. This maximizes the benefits of both exhaust and air-cooling pressure relief.

[0060] Furthermore, in a specific embodiment of the present invention, in the fourth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a fourth air-cooling power P 风4 The exhaust pressure relief device works at the third exhaust power P 排3 、The third exhaust duty cycle is m:n, where 4 / 5P 泄 ≤P 风4 ≤P 泄 , 1 / 5P 泄 ≤P 排3 ≤1 / 4P 泄 , 1 / 30≤m:n≤1 / 20; in the fifth pressure relief sub-stage, the air-cooled pressure relief device is controlled to use the third air-cooling power P 风5 Working, the exhaust pressure relief device is at the fourth exhaust power P 排4 , the fourth exhaust duty cycle x:y working, where 4 / 5P 泄 ≤P 风5 ≤P 泄 , 1 / 5P 泄 ≤P 排4 ≤1 / 4P 泄 , 1 / 25≤x:y≤1 / 15.

[0061] For simplicity of description, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because certain steps can be performed in other orders or simultaneously according to the embodiments of the present invention. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0062] Figure 2 The structure diagram of a pressure relief control device for a cooking appliance provided by an embodiment of the present invention is schematically shown. Figure 2 As shown, a pressure relief control device for a cooking appliance according to an embodiment of the present invention includes a boiling point temperature recognition module 201, an acquisition module 202, and a pressure relief control module 203, wherein:

[0063] The boiling point temperature recognition module 201 is used to recognize the boiling point temperature of the cooking utensil during the pre-boiling stage;

[0064] an acquisition module 202 for selecting a pressure relief mode corresponding to the current altitude environment state of the location of the cooking appliance based on the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state of the location of the cooking appliance increases;

[0065] The pressure relief control module 203 is configured to control the cooking appliance to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state during the pressure relief phase.

[0066] Furthermore, the pressure relief control device for a cooking appliance according to an embodiment of the present invention further includes:

[0067] A judgment module, configured to judge a magnitude relationship between the boiling point temperature and a preset first temperature threshold;

[0068] The acquisition module 202 is specifically used to select the pressure relief mode corresponding to the current altitude environment state to be executed in the pressure relief stage according to the size relationship between the boiling point temperature and the preset first temperature threshold, including the pressure relief sub-stages and the working parameters of the air-cooled pressure relief device and / or the exhaust pressure relief device in each pressure relief sub-stage.

[0069] Furthermore, the pressure relief control module 203 is specifically configured to, when the boiling point temperature is lower than the first temperature threshold,

[0070] In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate until the inner cavity temperature of the cooking appliance reaches a preset second temperature threshold value T2, where T2 is ≤ 106°C;

[0071] In the second pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset third temperature threshold value T3, where T3 is ≤ 100° C.;

[0072] In the third pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to work simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fourth temperature threshold value T4, where T4≤90°C;

[0073] The operating duty cycle of the exhaust pressure relief device in the second pressure relief sub-stage is lower than the operating duty cycle in the third pressure relief sub-stage.

[0074] Furthermore, the pressure relief control module 203 is specifically configured to:

[0075] In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a first air-cooling power P 风1 Work, where P 风1 ≤Rated pressure relief power P 泄 ;

[0076] In the second pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a second air-cooling power P 风2 Work, control the exhaust pressure relief device to the first exhaust power P 排1 , the first exhaust duty cycle M: ​​N work, where M is the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle, N is the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle, 4 / 5P 泄 ≤P 风2 ≤P 泄 , 1 / 5P 泄 ≤P 排1 ≤1 / 4P 泄 , 1 / 30≤M:N≤1 / 20;

[0077] In the third pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a third air-cooling power P 风3 Working, the exhaust pressure relief device is at the second exhaust power P 排2 、The second exhaust duty cycle is X:Y, where 4 / 5P 泄 ≤P 风3 ≤P 泄 , 1 / 5P 泄 ≤P 排2 ≤1 / 4P 泄 , 1 / 25≤X:Y≤1 / 15.

[0078] Furthermore, the pressure relief control module 203 is specifically configured to, when the boiling point temperature is greater than or equal to the first temperature threshold,

[0079] In the fourth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fifth temperature threshold value T5, where T5 is ≤ 109° C.;

[0080] In the fifth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset sixth temperature threshold value T6, where T6≤100°C;

[0081] The operating duty cycle of the exhaust pressure relief device in the fourth pressure relief sub-stage is lower than the operating duty cycle in the fifth pressure relief sub-stage.

[0082] Furthermore, the pressure relief control module 203 is specifically configured to, when the boiling point temperature is greater than or equal to the first temperature threshold,

[0083] In the fourth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a fourth air-cooling power P 风4 The exhaust pressure relief device works at the third exhaust power P 排3 、The third exhaust duty cycle is m:n, where 4 / 5P 泄 ≤P 风4 ≤P 泄 , 1 / 5P 泄 ≤P 排3 ≤1 / 4P 泄 , 1 / 30≤m:n≤1 / 20;

[0084] In the fifth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at the third air-cooling power P 风5 Working, the exhaust pressure relief device is at the fourth exhaust power P 排4 , the fourth exhaust duty cycle x:y working, where 4 / 5P 泄 ≤P 风5 ≤P 泄 , 1 / 5P 泄 ≤P 排4 ≤1 / 4P 泄 , 1 / 25≤x:y≤1 / 15.

[0085] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0086] An embodiment of the present invention provides a method and device for controlling pressure relief of a cooking appliance. The method comprises: identifying the boiling point temperature of the cooking appliance during a pre-boiling phase; selecting a pressure relief mode corresponding to the current altitude environment state of the cooking appliance based on the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state of the cooking appliance increases; and controlling the cooking appliance to perform a corresponding pressure relief operation in the pressure relief mode corresponding to the current altitude environment state during the pressure relief phase. The present invention executes a pressure relief mode corresponding to the altitude environment state based on the current altitude environment state of the cooking appliance, effectively avoiding the problem of food spillage during the high-altitude pressure relief process caused by the existing pressure relief operation not distinguishing between high and low altitudes. It also shortens the pressure relief time and improves the user experience.

[0087] In addition, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is configured to execute the steps of the pressure relief control method for a cooking appliance in the above embodiment when running.

[0088] In this embodiment, if the integrated module / unit of the pressure relief control device of the cooking appliance is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention can also implement all or part of the process of the above-mentioned method embodiment by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practices, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0089] According to another aspect of an embodiment of the present invention, a cooking appliance is further provided. The cooking appliance includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the above-mentioned pressure relief control method for each cooking appliance are implemented, for example, Figure 1 Alternatively, when the processor executes the computer program, the functions of each module / unit in the embodiment of the pressure relief control device for cooking appliances are realized, for example Figure 2 The boiling point temperature identification module 201, the acquisition module 202 and the pressure relief control module 203 are shown.

[0090] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. The processor serves as the pressure relief control center of the cooking appliance, connecting various components of the entire cooking appliance using various interfaces and circuits.

[0091] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for controlling pressure relief of a cooking appliance, characterized in that: The method comprises: Identify the boiling temperature of the cooking appliance during the pre-boil phase; selecting a pressure relief mode corresponding to the current altitude environment state of the location of the cooking appliance according to the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state of the location of the cooking appliance increases; During the pressure relief phase, the cooking appliance is controlled to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state; The cooking appliance includes an air-cooling pressure relief device and an exhaust pressure relief device; The step of selecting a pressure relief mode corresponding to the current altitude environment state of the cooking appliance according to the boiling point temperature includes: Determining the magnitude relationship between the boiling point temperature and a preset first temperature threshold; selecting, according to a magnitude relationship between the boiling point temperature and a preset first temperature threshold, a pressure relief mode corresponding to the current altitude environment state to be executed in the pressure relief stage, including pressure relief substages and operating parameters of an air-cooled pressure relief device and an exhaust pressure relief device in each pressure relief substage; When the boiling point temperature is greater than or equal to the first temperature threshold, the pressure relief mode includes: In the fourth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fifth temperature threshold value T5, where T5 is ≤ 109°C; In the fifth pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset sixth temperature threshold value T6, where T6≤100°C; The operating duty cycle of the exhaust pressure relief device in the fourth pressure relief sub-stage is lower than the operating duty cycle in the fifth pressure relief sub-stage.

2. The method according to claim 1, characterized in that When the boiling point temperature is lower than the first temperature threshold, the pressure relief mode includes: In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate until the inner cavity temperature of the cooking appliance reaches a preset second temperature threshold value T2, where T2 is ≤ 106°C; In the second pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset third temperature threshold value T3, where T3 is ≤ 100°C; In the third pressure relief sub-stage, the air-cooling pressure relief device and the exhaust pressure relief device are controlled to operate simultaneously until the inner cavity temperature of the cooking appliance reaches a preset fourth temperature threshold value T4, where T4≤90°C; The operating duty cycle of the exhaust pressure relief device in the second pressure relief sub-stage is lower than the operating duty cycle in the third pressure relief sub-stage. The operating duty cycle of the exhaust pressure relief device is the ratio of the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle to the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle.

3. The method according to claim 2, characterized in that In the first pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a first air-cooling power P 风1 Work, where P 风1 ≤Rated pressure relief power P 泄 ; In the second pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a second air-cooling power P 风2 Work, control the exhaust pressure relief device to the first exhaust power P 排1 , the first exhaust duty cycle M: ​​N work, where M is the duration of the exhaust pressure relief device working in an exhaust pressure relief cycle, N is the duration of the exhaust pressure relief device stopping working in an exhaust pressure relief cycle, 4 / 5P 泄 ≤P 风2 ≤P 泄 , 1 / 5P 泄 ≤P 排1 ≤1 / 4P 泄 , 1 / 30≤M:N≤1 / 20; In the third pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a third air-cooling power P 风3 Working, the exhaust pressure relief device is at the second exhaust power P 排2 、The second exhaust duty cycle is X:Y, where 4 / 5P 泄 ≤P 风3 ≤P 泄 , 1 / 5P 泄 ≤P 排2 ≤1 / 4P 泄 , 1 / 25≤X:Y≤1 / 15.

4. The method according to claim 1, wherein In the fourth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at a fourth air-cooling power P 风4 The exhaust pressure relief device works at the third exhaust power P 排3 、The third exhaust duty cycle is m:n, where 4 / 5P 泄 ≤P 风4 ≤P 泄 , 1 / 5P 泄 ≤P 排3 ≤1 / 4P 泄 , 1 / 30≤m:n≤1 / 20; In the fifth pressure relief sub-stage, the air-cooled pressure relief device is controlled to operate at the third air-cooling power P 风5 Working, the exhaust pressure relief device is at the fourth exhaust power P 排4 , the fourth exhaust duty cycle x:y working, where 4 / 5P 泄 ≤P 风5 ≤P 泄 , 1 / 5P 泄 ≤P 排4 ≤1 / 4P 泄 , 1 / 25≤x:y≤1 / 15.

5. The method according to claim 1, wherein The identifying the boiling point temperature of the cooking utensil in the pre-boiling stage includes: When the inner cavity temperature of the cooking appliance reaches a seventh temperature threshold, controlling the heating component of the cooking appliance to stop working; When the duration of the heating component of the cooking appliance being controlled to stop working reaches a first preset duration, the heating component is controlled to operate at a first heating power and a first heating duty cycle W:V, where W is the duration of the heating component working in one heating cycle, and V is the duration of the heating component stopping working in one heating cycle, and the first heating power is less than the rated power of the heating component; When the inner cavity temperature of the cooking appliance reaches an eighth temperature threshold, obtaining a temperature rise time required for the inner cavity temperature to rise by a preset first temperature; When the temperature rise time is greater than the preset boiling point maintenance time, it is determined that the current inner cavity temperature of the cooking appliance is the boiling point temperature.

6. A pressure relief control device for a cooking appliance, characterized in that: The device comprises: A boiling point temperature recognition module, used to recognize the boiling point temperature of the cooking appliance during the pre-boiling stage; an acquisition module, configured to select a pressure relief mode corresponding to a current altitude environment state at a location where the cooking appliance is located according to the boiling point temperature, wherein the boiling point temperature of the cooking appliance decreases as the current altitude environment state at the location where the cooking appliance is located increases; a pressure relief control module, configured to control the cooking appliance to perform a corresponding pressure relief operation in a pressure relief mode corresponding to the current altitude environment state during the pressure relief phase; The cooking appliance includes an air-cooling pressure relief device and an exhaust pressure relief device; The step of selecting a pressure relief mode corresponding to the current altitude environment state of the cooking appliance according to the boiling point temperature includes: Determining the magnitude relationship between the boiling point temperature and a preset first temperature threshold; The pressure relief mode corresponding to the current altitude environment state and executed in the pressure relief stage is selected according to the magnitude relationship between the boiling point temperature and the preset first temperature threshold, including the pressure relief sub-stages and the operating parameters of the air-cooled pressure relief device and the exhaust pressure relief device in each pressure relief sub-stage.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the steps of the method according to any one of claims 1 to 5 when run.

8. A cooking appliance comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

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