Methods, devices, storage media, and cooking appliances for cooking

Abstract

This invention provides a control method, apparatus, storage medium, and cooking appliance for a cooking appliance. The method includes: controlling the cooking appliance to heat at a first preset power during a pre-boiling stage; after the internal temperature of the cooking appliance reaches a preset first temperature threshold, obtaining the temperature rise time required for each increase in the internal temperature to the preset first temperature, wherein each increase in the internal temperature to the preset first temperature is referred to as a temperature rise sub-stage; and detecting the temperature rise time t of the current temperature rise sub-stage. n The temperature rise time t is less than the previous temperature rise sub-stage. n‑1 When the boiling point is determined, the internal temperature at the start of the current temperature rise sub-stage is identified as the boiling point temperature. This boiling point identification method eliminates the need for an automatic venting structure, saving cooking time and reducing the cost of cooking appliances. It also effectively prevents safety issues caused by cooking appliances failing to identify the boiling point and using ambient temperature for control, resulting in pressures in the appliance's internal cavity exceeding the rated pressure, thus improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a control method, device, storage medium, and cooking appliance for a cooking utensil. Background Technology

[0002] With advancements in technology, cooking appliances have become more user-friendly in design. Many appliances now offer pressure cooking, resulting in softer, more tender food, better cooking outcomes, faster cooking times, and a more pleasant user experience. However, due to varying altitudes, the boiling point of water differs, leading to varying pressures within cooking appliances at the same temperature. Current cooking appliances lack differentiated pressure relief logic based on altitude. Since the boiling point decreases at high altitudes, using ambient pressure for temperature control would result in pressures significantly exceeding the appliance's rated pressure, posing safety risks.

[0003] Existing technologies include methods that use pressure switches and pressure relief valves to control the maximum pressure of cooking appliances. However, these methods can only control the maximum pressure and cannot identify the boiling point, thus failing to precisely control the cooking appliance at a specified pressure for cooking. Some methods use an automatic venting structure to continuously vent during the boiling stage to determine the boiling point. However, this method requires continuous venting for a long time to determine the boiling point, which not only increases cooking time but also increases costs. Summary of the Invention

[0004] This invention proposes a control method, device, storage medium, and cooking appliance for cooking, which solves or partially solves the problems of inaccurate identification, long identification time, and high cost in the boiling point identification of cooking appliances in the prior art.

[0005] In one aspect, the present invention provides a method for controlling a cooking appliance, the method comprising:

[0006] During the pre-boiling stage, the cooking appliance is controlled to heat at a first preset power.

[0007] After the internal temperature of the cooking appliance reaches a preset first temperature threshold, the time required for the internal temperature to rise to the preset first temperature is obtained, wherein the process of the internal temperature rising to the first temperature is called a temperature rise sub-stage.

[0008] When the temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the internal temperature at the start of the current temperature rise phase is determined as the boiling point temperature of the cooking appliance.

[0009] Furthermore, when the temperature rise duration t of the current temperature rise sub-stage is detected...n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 When determining the boiling point temperature of the cooking appliance, the internal temperature at the start of the current temperature rise sub-stage is taken as follows:

[0010] When the temperature rise duration t of the current temperature rise sub-stage is detected. n Temperature rise duration t compared to the previous temperature rise sub-stage n-1 Satisfy t n <kt n-1 When the temperature at the start of the current temperature rise sub-stage is determined, the temperature value is determined to be the boiling point temperature of the cooking appliance, where k is a preset proportional coefficient.

[0011] Furthermore, after detecting the temperature rise duration t of the current temperature rise sub-stage... n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 Previously, the method also included:

[0012] If the internal temperature of the cooking appliance is detected to be greater than or equal to a preset second temperature threshold, the boiling point temperature of the cooking appliance is determined to be 100°C.

[0013] Furthermore, prior to the pre-boiling stage, the method further includes:

[0014] During the heating phase, the cooking appliance is controlled to heat at a second preset power until the duration of the heating phase reaches a first preset duration, or the temperature inside the cooking appliance cavity reaches a preset third temperature threshold, wherein the second preset power is greater than or equal to the first preset power, and the third temperature threshold is less than or equal to the first temperature threshold.

[0015] Furthermore, after determining that the temperature at the start of the current temperature rise sub-stage is the boiling point temperature of the cooking appliance, the method further includes:

[0016] During the pressurization stage, the cooking appliance is controlled to heat at a third preset power until the internal temperature of the cooking appliance reaches the pressure holding temperature. The pressure holding temperature is the sum of the boiling point temperature and the preset second temperature, which is the rated pressurization temperature corresponding to the current cooking mode of the cooking appliance.

[0017] During the pressure holding phase, the cooking appliance is controlled to heat at a fourth preset power to maintain the absolute value of the difference between the internal temperature of the cooking appliance and the pressure holding temperature less than a preset third temperature, until the duration of the pressure holding phase reaches a second preset duration.

[0018] Furthermore, in the pressure boosting phase and / or the pressure holding phase, the method further includes:

[0019] When the difference between the internal temperature and the boiling point temperature of the cooking appliance exceeds a preset pressure boosting temperature threshold, an overpressure warning message is issued, wherein the pressure boosting temperature threshold is greater than or equal to the second temperature.

[0020] Furthermore, after the pressure holding stage, the method further includes:

[0021] During the pressure relief phase, after the cooking appliance is detected to have performed a pressure relief operation, a pressure relief completion prompt message is issued when the internal temperature of the cooking appliance drops to the boiling point temperature.

[0022] Another aspect of the present invention is a control device for a cooking appliance, the device comprising:

[0023] The control module is used to control the cooking appliance to heat at a first preset power during the pre-boiling stage;

[0024] The acquisition module is used to acquire the temperature rise time required for the internal temperature of the cooking appliance to rise to a preset first temperature after the internal temperature reaches a preset first temperature threshold, wherein the process of the internal temperature rising to the first temperature is called a temperature rise sub-stage.

[0025] The boiling point temperature determination module is used to determine the internal temperature at the start of the current temperature rise sub-stage as the boiling point temperature of the cooking appliance when the temperature rise duration tn of the current temperature rise sub-stage is less than the temperature rise duration tn-1 of the previous temperature rise sub-stage.

[0026] Furthermore, the present invention also provides a computer-readable storage medium storing a computer program, wherein the computer program is configured to perform the steps of the above-described method at runtime.

[0027] In addition, the present invention also provides a cooking appliance, including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the steps of the above method.

[0028] This invention provides a method, apparatus, storage medium, and cooking appliance for controlling a cooking appliance. The method includes: controlling the cooking appliance to heat at a first preset power during a pre-boiling stage; after the internal temperature of the cooking appliance reaches a preset first temperature threshold, obtaining the temperature rise time required for the internal temperature to rise by a preset first temperature, wherein each increase in the internal temperature by the first temperature is referred to as a temperature rise sub-stage; and detecting the temperature rise time t of the current temperature rise sub-stage. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1The invention determines the boiling point of the cooking appliance by identifying the internal temperature at the start of the current temperature rise phase. This invention accurately identifies the boiling point of the cooking appliance based on the duration of the temperature rise phase, eliminating the need for an automatic venting structure. This not only saves cooking time but also reduces the cost of the cooking appliance. Furthermore, it effectively prevents safety issues caused by the pressure inside the cooking appliance exceeding the rated pressure due to the appliance's inability to identify its boiling point and the use of a normal pressure temperature point for control, thus improving the user experience.

[0029] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0031] Figure 1 A flowchart illustrating a method for controlling a cooking appliance according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a control device for a cooking appliance provided in an embodiment of the present invention. Detailed Implementation

[0033] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0034] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined.

[0035] Figure 1 A flowchart illustrating a control method for a cooking appliance provided by an embodiment of the present invention is shown schematically. Figure 1It can be seen that the control method for cooking appliances in this embodiment of the invention includes the following steps:

[0036] S1. During the pre-boiling stage, control the cooking appliance to heat at a first preset power;

[0037] In this embodiment of the invention, the cooking stage before reaching the boiling stage is called the pre-boiling stage. In this stage, in order to avoid the material in the cooking appliance heating up too quickly and to make it easier to accurately obtain the boiling point temperature, a lower heating power is generally used for cooking. Therefore, in this embodiment of the invention, the cooking appliance is controlled to heat at a first preset power during the pre-boiling stage. The first preset power can generally be 50% to 80% of the rated power of the cooking appliance.

[0038] S2. After the internal temperature of the cooking appliance reaches a preset first temperature threshold, the time required for the internal temperature to rise to the preset first temperature is obtained, wherein the process of the internal temperature rising to the first temperature is called a temperature rise sub-stage.

[0039] In this embodiment of the invention, the first temperature threshold ranges from 80°C to 90°C, and the first temperature ranges from 1°C to 3°C. Since boiling points differ depending on altitude, this embodiment sets the first temperature threshold range to 80°C to 90°C to accurately capture the boiling point of the cooking appliance. When the internal temperature of the cooking appliance reaches the first temperature threshold, it indicates that the material inside the appliance is about to boil, and the boiling point identification method of this embodiment can then be used to identify the current boiling point of the cooking appliance.

[0040] Furthermore, the first temperature threshold can be denoted as T1, and the first temperature can be denoted as T. That is, after the temperature in the inner cavity of the cooking appliance reaches the preset first temperature threshold, at T2 = T1 + T, the time t1 taken for the temperature to rise from T1 to T2 is obtained, where t1 is the temperature rise time of the first temperature rise sub-stage. Similarly, when the temperature in the inner cavity of the cooking appliance reaches Tn+1 = Tn + T, the time t taken for the temperature to rise from Tn to Tn+1 is obtained. n , where t n The duration of the temperature rise in the nth temperature rise sub-stage.

[0041] S3, when the temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the internal temperature at the start of the current temperature rise phase is determined as the boiling point temperature of the cooking appliance.

[0042] It should be noted that the temperature detection device of a cooking appliance is generally located at the top of the inner cavity. Due to the lag in temperature detection, when the temperature inside the appliance is low, the temperature detected by the device is obtained through heat radiation from the food being cooked. Because of the low efficiency of heat radiation, the temperature detected by the device is lower than the temperature of the food being cooked. When the food being cooked reaches its boiling point, the liquid evaporates rapidly, and the steam transfers heat to the vicinity of the temperature detection device, causing the detected temperature to rise rapidly. At this point, the temperature rise rate is fast, quickly approaching the temperature of the food being cooked. After reaching the temperature of the food being cooked, the rate of temperature rise decreases. This embodiment of the invention utilizes the characteristic of the rapid temperature rise when the detected temperature reaches the boiling point for boiling point identification. Therefore, the temperature rise time t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the temperature Tn at the beginning of the current temperature rise phase is determined to be the boiling point temperature.

[0043] Furthermore, to avoid the influence of other factors on the temperature rise duration, the embodiments of the present invention set corresponding coefficients for comparing the temperature rise durations of each temperature rise stage, so as to further improve the detection accuracy. In a preferred embodiment of the present invention, when the temperature rise duration t of the current temperature rise sub-stage is detected... n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 Determining the internal cavity temperature at the start of the current temperature rise sub-stage as the boiling point temperature of the cooking appliance also includes: when the temperature rise duration t of the current temperature rise sub-stage is detected. n Temperature rise duration t compared to the previous temperature rise sub-stage n-1 Satisfy t n <kt n-1 When the temperature at the start of the current temperature rise sub-stage is determined, the temperature value is determined to be the boiling point temperature of the cooking appliance, where k is a preset proportionality coefficient. The value of k ranges from 0.5 to 1.

[0044] Furthermore, it should be noted that since the boiling point of water under standard atmospheric pressure is 100°C, this embodiment of the invention also includes the temperature rise duration t during the detection of the current temperature rise sub-stage. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 Previously, or, if t is detected, n <kt n-1 Before the temperature rise stage, if the temperature inside the cooking appliance cavity is detected to be greater than or equal to a preset second temperature threshold, the boiling point temperature of the cooking appliance is determined to be 100°C. The second temperature threshold is 100°C to 103°C.

[0045] This invention identifies the boiling point of a cooking appliance based on the temperature change within its internal cavity before and after boiling during the cooking process. Compared to existing methods that use an automatic venting structure to continuously vent during the boiling stage to determine the boiling point, this method is not only more accurate but also eliminates the need for venting during cooking, thus shortening cooking time and reducing the cost of the cooking appliance.

[0046] Furthermore, to improve the cooking efficiency of the cooking appliance and reduce the cooking time, a heating stage can be performed before the pre-boiling stage to rapidly increase the temperature inside the cooking appliance cavity. Specifically, before the pre-boiling stage, the method further includes: a heating stage in which the cooking appliance is controlled to heat at a second preset power until the duration of the heating stage reaches a first preset duration, or the temperature inside the cooking appliance cavity reaches a preset third temperature threshold, wherein the second preset power ≥ the first preset power, and the third temperature threshold ≤ the first temperature threshold.

[0047] Specifically, the second preset power value range is generally 80% to 100% of the rated power of the cooking appliance, the third temperature threshold value range is 60℃ to 85℃, and the first preset time value range is 20min to 30min.

[0048] Furthermore, the control method for the cooking appliance in this embodiment of the invention further includes a pressure-boosting stage and a pressure-holding stage. After determining the temperature at the start of the current temperature rise sub-stage as the boiling point temperature of the cooking appliance during the pre-boiling stage, the method further includes: a pressure-boosting stage, controlling the cooking appliance to heat at a third preset power until the temperature inside the cooking appliance reaches a pressure-holding temperature, wherein the pressure-holding temperature is the sum of the boiling point temperature and a preset second temperature, and the second temperature is the rated pressure-boosting temperature corresponding to the current cooking mode of the cooking appliance; and a pressure-holding stage, controlling the cooking appliance to heat at a fourth preset power to maintain the absolute value of the difference between the temperature inside the cooking appliance and the pressure-holding temperature being less than a preset third temperature, until the duration of the pressure-holding stage reaches a second preset duration, wherein the third preset power is ≥ the fourth preset power.

[0049] The purpose of the pressurization stage is to control the internal temperature of the cooking appliance to reach a preset holding temperature. This preset holding temperature is related to the current cooking mode of the appliance, specifically, it is the temperature rise relative to the boiling point temperature reaching a second temperature. The third preset power value is greater than or equal to 50% of the rated power of the cooking appliance.

[0050] Furthermore, the value range of the fourth preset power meter is less than 50% of the rated power of the cooking appliance. It should be noted that the cooking appliance operates in intermittent heating mode during the pressure-holding stage. The ultimate goal of the pressure-holding stage is to ensure that the absolute value of the difference between the temperature inside the cooking appliance cavity and the pressure-holding temperature is less than a preset third temperature. The third temperature is the allowable error range for the pressure-holding temperature, and its value ranges from 1℃ to 3℃.

[0051] In this embodiment of the invention, the purpose of controlling the cooking appliance to perform the pressurization stage and the pressure holding stage is to maintain the material in the inner cavity at the set temperature for cooking, so that the cooked food is softer and more delicate, and the cooking effect is improved.

[0052] Furthermore, in this embodiment of the invention, during the pressurization phase and / or the pressure holding phase, the method further includes: when the difference between the internal temperature and the boiling point temperature of the cooking appliance exceeds a preset pressurization temperature threshold, an overpressure warning message is issued, wherein the pressurization temperature threshold is ≥ the second temperature. For example, when the maximum allowable pressure of the cooking appliance is 120 kPa, the corresponding temperature is 24°C above the boiling point, meaning the pressurization temperature threshold is 24°C.

[0053] Furthermore, the control method for the cooking appliance in this embodiment of the invention further includes: in the pressure relief stage after the pressure holding stage, when the pressure relief operation is detected, and the internal temperature of the cooking appliance drops to the boiling point temperature, a pressure relief completion prompt message is issued. Since when the internal temperature of the cooking appliance drops to the boiling point temperature, it proves that the pressure inside the cavity is the same as the external pressure, the pressure relief is complete, and the prompt device reminds the user that the lid can be opened.

[0054] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0055] Figure 2 The schematic diagram illustrates the structure of a control device for a cooking appliance provided in an embodiment of the present invention, such as... Figure 2 As shown, a control device for a cooking appliance according to an embodiment of the present invention includes a control module 201, an acquisition module 202, and a boiling point temperature determination module 203, wherein:

[0056] Control module 201 is used to control the cooking appliance to heat at a first preset power during the pre-boiling stage;

[0057] The acquisition module 202 is used to acquire the temperature rise time required for the inner cavity temperature to rise to a preset first temperature after the inner cavity temperature of the cooking appliance reaches a preset first temperature threshold, wherein the process of the inner cavity temperature rising to the first temperature is called a temperature rise sub-stage.

[0058] Boiling point temperature determination module 203 is used to determine the boiling point temperature when the temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the internal temperature at the start of the current temperature rise phase is determined as the boiling point temperature of the cooking appliance.

[0059] Furthermore, the boiling point temperature determination module 203 is also used to determine the boiling point temperature when the temperature rise duration t of the current temperature rise sub-stage is detected. n Temperature rise duration t compared to the previous temperature rise sub-stage n-1 Satisfy t n <kt n-1 When the temperature at the start of the current temperature rise sub-stage is determined, the temperature value is determined to be the boiling point temperature of the cooking appliance, where k is a preset proportional coefficient.

[0060] Furthermore, the boiling point temperature determination module 203 is also used to determine the temperature rise duration t of the current temperature rise sub-stage. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 Previously, when the internal temperature of the cooking appliance was detected to be greater than or equal to a preset second temperature threshold, the boiling point temperature of the cooking appliance was determined to be 100°C.

[0061] Furthermore, the control device for the cooking appliance in this embodiment of the invention further includes:

[0062] The heating phase control module is used to control the cooking appliance to heat at a second preset power until the duration of the heating phase reaches a first preset duration, or the temperature in the inner cavity of the cooking appliance reaches a preset third temperature threshold, wherein the second preset power ≥ the first preset power and the third temperature threshold ≤ the first temperature threshold.

[0063] Furthermore, the control device for the cooking appliance in this embodiment of the invention further includes:

[0064] The pressure boosting stage control module is used to control the cooking appliance to heat at a third preset power after determining that the temperature value at the start of the current temperature boosting stage is the boiling point temperature of the cooking appliance, until the internal temperature of the cooking appliance reaches the pressure holding temperature. The pressure holding temperature is the sum of the boiling point temperature and a preset second temperature, which is the rated pressure boosting temperature corresponding to the current cooking mode of the cooking appliance.

[0065] The pressure holding stage control module is used to control the cooking appliance to heat at a fourth preset power to maintain the absolute value of the difference between the inner cavity temperature of the cooking appliance and the pressure holding temperature less than a preset third temperature, until the duration of the pressure holding stage reaches a second preset duration, wherein the third preset power is greater than or equal to the fourth preset power.

[0066] Furthermore, the control device for the cooking appliance in this embodiment of the invention further includes:

[0067] The overpressure warning module is used to issue an overpressure warning message when the difference between the internal temperature and the boiling point temperature of the cooking appliance exceeds a preset pressure rise temperature threshold, wherein the pressure rise temperature threshold is ≥ the second temperature.

[0068] Furthermore, the control device for the cooking appliance in this embodiment of the invention further includes:

[0069] The pressure relief stage control module is used to issue a pressure relief completion prompt message when the internal temperature of the cooking appliance drops to the boiling point temperature after the pressure relief operation is detected.

[0070] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0071] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0072] This invention provides a method and apparatus for controlling a cooking appliance. The method includes: controlling the cooking appliance to heat at a first preset power during a pre-boiling stage; after the internal temperature of the cooking appliance reaches a preset first temperature threshold, acquiring the time required for the internal temperature to rise by a preset first temperature, wherein each increase in the internal temperature by the first temperature is referred to as a temperature rise sub-stage; and detecting the temperature rise time t of the current temperature rise sub-stage. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1The invention determines the boiling point of the cooking appliance by identifying the internal temperature at the start of the current temperature rise phase. This invention accurately identifies the boiling point of the cooking appliance based on the duration of the temperature rise phase, eliminating the need for an automatic venting structure. This not only saves cooking time but also reduces the cost of the cooking appliance. Furthermore, it effectively prevents safety issues caused by the pressure inside the cooking appliance exceeding the rated pressure due to the appliance's inability to identify its boiling point and the use of a normal pressure temperature point for control, thus improving the user experience.

[0073] Furthermore, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program is configured to execute the steps of the control method for the cooking appliance in the above embodiments when running.

[0074] In this embodiment, if the module / unit integrated into the 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, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately added to or subtracted from the content as required by the legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium may not include electrical carrier signals and telecommunication signals.

[0075] According to another aspect of the present invention, a cooking appliance is also provided, which 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, it implements the steps in the control method embodiments of the various cooking appliances described above, for example... Figure 1 S1-S3 are shown. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the above-described control device embodiment of the cooking appliance, for example... Figure 2 The control module 201, acquisition module 202, and boiling point temperature determination module 203 are shown.

[0076] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the cooking appliance, connecting all parts of the appliance via various interfaces and circuits.

[0077] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling a cooking utensil, characterized in that, The method includes: During the pre-boiling stage, the cooking appliance is controlled to heat at a first preset power. After the internal temperature of the cooking appliance reaches a preset first temperature threshold, the time required for the internal temperature to rise to the preset first temperature is obtained, wherein the process of the internal temperature rising to the first temperature is called a temperature rise sub-stage. When the temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the internal temperature at the start of the current temperature rise phase is determined as the boiling point temperature of the cooking appliance.

2. The method according to claim 1, characterized in that, The temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 When determining the boiling point temperature of the cooking appliance, the internal temperature at the start of the current temperature rise sub-stage is taken as follows: When the temperature rise duration t of the current temperature rise sub-stage is detected. n Temperature rise duration t compared to the previous temperature rise sub-stage n-1 Satisfying t n <kt n-1 When the temperature at the start of the current temperature rise sub-stage is determined, the temperature value is determined to be the boiling point temperature of the cooking appliance, where k is a preset proportional coefficient.

3. The method according to claim 1, characterized in that, The temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 Previously, the method also included: When the internal temperature of the cooking appliance is detected to be greater than or equal to a preset second temperature threshold, the boiling point temperature of the cooking appliance is determined to be 100°C.

4. The method according to claim 1, characterized in that, Prior to the preboiling stage, the method further includes: During the heating phase, the cooking appliance is controlled to heat at a second preset power until the duration of the heating phase reaches a first preset duration, or the temperature inside the cooking appliance cavity reaches a preset third temperature threshold, wherein the second preset power is greater than or equal to the first preset power, and the third temperature threshold is less than or equal to the first temperature threshold.

5. The method according to claim 1, characterized in that, After determining that the temperature at the start of the current temperature rise sub-stage is the boiling point temperature of the cooking appliance, the method further includes: During the pressurization stage, the cooking appliance is controlled to heat at a third preset power until the internal temperature of the cooking appliance reaches the pressure holding temperature. The pressure holding temperature is the sum of the boiling point temperature and the preset second temperature, which is the rated pressurization temperature corresponding to the current cooking mode of the cooking appliance. During the pressure-holding phase, the cooking appliance is controlled to heat at a fourth preset power to maintain the absolute value of the difference between the internal temperature of the cooking appliance and the pressure-holding temperature less than a preset third temperature, until the duration of the pressure-holding phase reaches a second preset duration. The third preset power is greater than or equal to the fourth preset power.

6. The method according to claim 5, characterized in that, During the pressure boosting phase and / or the pressure holding phase, the method further includes: When the difference between the internal temperature and the boiling point temperature of the cooking appliance exceeds a preset pressure boosting temperature threshold, an overpressure warning message is issued, wherein the pressure boosting temperature threshold is ≥ the second temperature.

7. The method according to claim 5, characterized in that, After the pressure holding phase, the method further includes: During the pressure relief phase, after the cooking appliance is detected to have performed a pressure relief operation, a pressure relief completion prompt message is issued when the internal temperature of the cooking appliance drops to the boiling point temperature.

8. A control device for a cooking utensil, characterized in that, The device includes: The control module is used to control the cooking appliance to heat at a first preset power during the pre-boiling stage; The acquisition module is used to acquire the temperature rise time required for the internal temperature of the cooking appliance to rise to a preset first temperature after the internal temperature reaches a preset first temperature threshold, wherein the process of the internal temperature rising to the first temperature is called a temperature rise sub-stage. The boiling point temperature determination module is used to determine the boiling point temperature when the temperature rise duration t of the current temperature rise sub-stage is detected. n The temperature rise time t is less than the previous temperature rise sub-stage. n-1 At that time, the internal temperature at the start of the current temperature rise phase is determined as the boiling point temperature of the cooking appliance.

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

10. A cooking appliance, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1-7.

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