A cookware equipped with multiple pressure relief valves and its working method

Abstract

This application discloses a cookware equipped with multiple pressure-limiting valves and its working method. The cookware includes a cookware body and multiple pressure-limiting valves with different rated pressures. The cookware body has a controller inside for controlling the cookware body to enter different pressure cooking modes. The top has a mounting cavity for different pressure-limiting valves to be embedded in, and a valve body identification structure electrically connected to the controller is provided on the side wall of the mounting cavity. This valve body identification structure can contact the current pressure-limiting valve embedded in the mounting cavity, detect the rated pressure of the current pressure-limiting valve, and send information to the controller. This allows the controller to determine whether the rated pressure of the current pressure-limiting valve matches the pressure cooking command input by the user. Users can use different pressure-limiting valves according to their preferences to cook different foods, improving the versatility of the cookware and ensuring the cooking effect.

Description

Technical Field

[0001] This invention belongs to the field of cookware technology, and particularly relates to a cookware equipped with multiple pressure relief valves and its working method. Background Technology

[0002] Currently, pressure cookers sold on the market, such as low-pressure rice cookers and electric pressure cookers, rely on pressure-limiting valves to restrict the gas released from the cooker body, creating high-temperature, high-pressure gas inside the cooker to accelerate the cooking process. However, the pressure-limiting valve is generally integrated with the cooker, meaning the pressure cannot be changed after installation. Users can only cook specific types of food that are compatible with the cooker's rated pressure. If other types of food are cooked using the same cooker, insufficient or excessive pressure can result in undercooked food or overheated food, leading to a poor taste. This results in limited versatility, poor user experience, and a limited range of food types that are difficult to cook. Summary of the Invention

[0003] (I) Purpose of the Invention

[0004] To overcome the above shortcomings, the present invention aims to provide a cookware equipped with multiple pressure relief valves and a working method, so as to solve the technical problem that existing high-pressure cooking cookware has a fixed pressure value and can only cook a fixed number of types of food, resulting in poor versatility of the cookware and poor user experience.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A cookware equipped with multiple pressure-limiting valves includes: a cookware body and multiple pressure-limiting valves with different rated pressures. The cookware body is internally provided with a controller for controlling the cookware body to enter different pressure cooking modes. The top has an installation cavity for different pressure-limiting valves to be embedded in, and a valve body identification structure electrically connected to the controller is provided on the side wall of the installation cavity. The valve body identification structure can contact the current pressure-limiting valve embedded in the installation cavity, detect the rated pressure of the current pressure-limiting valve, and send information to the controller, so that the controller can determine whether the rated pressure of the current pressure-limiting valve matches the pressure cooking command input by the user.

[0008] This application incorporates a valve body identification structure and multiple pressure-limiting valves on the side wall of the mounting cavity. When a user installs different pressure-limiting valves into the mounting cavity, the valve body identification structure detects the rated pressure of the current pressure-limiting valve and sends information to the controller. The controller then determines whether the rated pressure of the current pressure-limiting valve matches the user's input pressure cooking command. If they match, the cookware can directly cook the food according to the user's input pressure cooking command. Otherwise, the cookware can issue an alarm, indicating that the current pressure cooking command does not match the current pressure-limiting valve, which may easily lead to undercooked or overcooked food. By matching multiple pressure-limiting valves with different rated pressures, this application can change the internal pressure generated in the cookware body during cooking, making it suitable for various cooking methods. When cooking with different foods, users can choose different pressure relief valves according to their preferences to cook different foods, improving the versatility of the cookware. In addition, by setting the first detection structure, it can detect whether the current pressure cooking command matches the rated pressure of the current pressure relief valve. This can prevent users from selecting the wrong pressure relief valve, which would cause the pressure relief valve to continuously release gas when a high-pressure function is required, preventing the formation of high pressure in the pot and resulting in the food not being cooked through. Or, if a high-pressure pressure relief valve is installed when a low-pressure function is required, the gas cannot be released within the predetermined time, resulting in the gas pressure inside the cookware being higher than the required gas pressure, overheating the food, and causing it to become overcooked and taste worse.

[0009] In some embodiments, each pressure relief valve has a first contact point on its sidewall that conducts pressure relief valve. The height of the first contact point of each pressure relief valve is different. The valve body identification structure includes a plurality of second contacts arranged sequentially from top to bottom on the sidewall of the mounting cavity and all electrically connected to the controller. The second contacts at different heights can contact the first contacts of different pressure relief valves to identify the rated pressure of the current pressure relief valve.

[0010] In some embodiments, each pressure relief valve is provided with an associated electronic identification element for identifying the pressure relief valve. The valve body identification structure includes a third contact disposed on the side wall of the mounting cavity and electrically connected to the controller, which can contact the electronic identification element corresponding to different pressure relief valves to identify different pressure relief valves.

[0011] In some embodiments, it further includes: a valve body detection structure disposed on the side wall of the mounting cavity and electrically connected to the controller, which is capable of contacting the pressure relief valve installed in the mounting cavity to determine whether the pressure relief valve is installed;

[0012] By setting up a valve body detection structure to detect whether a pressure relief valve is missing, the problem of food not being cooked properly is prevented from being caused by users cooking in pressurized mode when a pressure relief valve is missing.

[0013] Another aspect of this application provides a method for operating a cookware equipped with multiple pressure relief valves, including:

[0014] When receiving information that the pressure relief valve is installed in the mounting cavity of the cookware body, the rated pressure of the current pressure relief valve is identified;

[0015] When a user inputs a pressure cooking command, it determines whether the pressure contained in the pressure cooking command matches the rated pressure of the current pressure relief valve;

[0016] If matched, the pressure cooking mode corresponding to the pressure relief valve will be activated;

[0017] Otherwise, issue the first warning;

[0018] The cookware using the processing method described in this application can automatically determine whether the rated pressure of the current pressure limiting valve matches the pressure included in the pressure cooking command input by the user. If they match, no alarm is issued, and the food can be cooked directly according to the pressure cooking command. Otherwise, the user is given a first prompt, indicating that the rated pressure of the current pressure limiting valve does not match the pressure included in the cooking command, which may easily cause the food to be undercooked or overheated. This ensures that the cookware can cook food under appropriate pressure, improving the cookware's versatility while ensuring its cooking effect.

[0019] In some embodiments, after the rated pressure of the current pressure relief valve is detected and before entering the pressure cooking mode corresponding to the pressure cooking command, the method further includes:

[0020] Obtain the current rated pressure of the cookware body;

[0021] Determine whether the rated pressure of the current cookware body matches the rated pressure of the current pressure relief valve;

[0022] If a match is found, the cookware is determined to be in a safe working condition.

[0023] Otherwise, it is determined that the cookware is currently in an unsafe working condition;

[0024] By comparing the rated pressure of the cookware body with the rated pressure of the pressure limiting valve, the minimum rated pressure is used as the rated pressure of the pressure limiting valve. This can prevent cookware with a small pressure resistance value from being fitted with a high-pressure valve with a large pressure resistance value, which could cause the cookware to explode due to the inability to withstand the internal high pressure.

[0025] In some embodiments, after determining the safe state of the cookware, entering the pressure cooking mode corresponding to the pressure cooking command includes:

[0026] If it is determined that the cookware is in a safe working condition, enter the pressure cooking mode corresponding to the pressure cooking command;

[0027] If the cookware is determined to be in an unsafe state, it will enter the pressure cooking mode limited by the rated pressure of the cookware itself.

[0028] In some embodiments, after the rated pressure of the current pressure relief valve is detected and before entering the pressurized cooking mode corresponding to the current pressure relief valve, the method further includes: adjusting the threshold corresponding to the current pressure by adjusting the highest temperature sensing threshold of the temperature sensing device set on the cookware body.

[0029] Adjusting the maximum temperature sensing threshold of the temperature sensor inside the cookware by different pressure relief valves can prevent the maximum temperature sensing threshold of the temperature sensor from being fixed. When the temperature sensor senses 90-100 degrees Celsius, it directly controls the cookware to stop heating and enter the heat preservation state, which cannot work with the high pressure relief valve to generate high temperature and high pressure gas inside the cookware to cook the food.

[0030] In some embodiments, after receiving the pressure cooking command and before controlling the cookware body to enter the corresponding pressure cooking mode, the method further includes: checking whether the current pressure relief valve signal is received; if not, issuing a second prompt.

[0031] In some embodiments, upon issuing a second prompt and receiving a non-pressure cooking instruction, the non-pressure cooking mode is entered;

[0032] In addition to pressure cooking, the cookware also supports non-pressure cooking, such as hot pot and steaming, further enhancing its functionality. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the cookware equipped with multiple pressure relief valves according to the present invention;

[0034] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0035] Figure 3 This is a flowchart illustrating the workflow of the cookware equipped with multiple pressure relief valves according to the present invention.

[0036] Figure 4 This is a flowchart of a preferred embodiment of the cookware equipped with multiple pressure relief valves of the present invention.

[0037] Figure label:

[0038] 1. Pressure relief valve; 101. Vent hole; 102. First contact point; 2. Cookware body; 201. Top cover; 3. Valve body identification structure; 301. Second contact point; 4. Valve body detection structure. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0040] Please see Figure 1 and Figure 2 The present invention provides a cookware equipped with multiple pressure-limiting valves, comprising a cookware body 2 and multiple pressure-limiting valves 1 with different rated pressures. The cookware body 2 is internally provided with a controller for controlling the cookware body 2 to enter different pressure cooking modes. The top has an installation cavity for different pressure-limiting valves 1 to be embedded in, and a valve body identification structure 3 electrically connected to the controller is provided on the side wall of the installation cavity. The valve body identification structure 3 can contact the current pressure-limiting valve 1 embedded in the installation cavity, detect the rated pressure of the current pressure-limiting valve 1, and send information to the controller, so that the controller can determine whether the rated pressure of the current pressure-limiting valve 1 matches the pressure cooking command input by the user.

[0041] Specifically, the rated pressures of the multiple pressure relief valves 1 are different, including:

[0042] Low-pressure relief valve 1, with a pressure range of 0.1 kPa to 1 kPa;

[0043] Medium-pressure relief valve 1, with a pressure range of 1 kPa-20 kPa;

[0044] High-pressure limiting valve 1, with a pressure range of 20-80 kPa.

[0045] Specifically, the pressure relief valve 1 is provided with an exhaust port 101. The pressure relief valve 1 allows gas of different pressures to be discharged from the exhaust port 101 by configuring different self-weights, internal spring pressure, elastic rubber parts, electric actuation, electromagnetic actuation, etc., so as to achieve different control of the pressure inside the pot. Its control method is the same as the control method of conventional pressure relief valves 1 on the market, and will not be described in detail here.

[0046] Specifically, the function panel on the cookware body 2 has different cooking functions, such as:

[0047] High-pressure function, used for cooking foods that require a high-pressure environment, such as soups, meats, and beans;

[0048] Medium pressure function, used for cooking foods that require a medium pressure environment, such as frozen ingredients;

[0049] The low-pressure function is used for cooking foods such as rice in a low-pressure environment.

[0050] Specifically, since different foods require different pressures to cook, when different foods need to be pressure cooked, the user replaces the corresponding pressure relief valve 1 and then selects the corresponding cooking function.

[0051] Specifically, the valve body identification structure 3 can be implemented in various ways; two examples are listed below:

[0052] First embodiment: Each pressure relief valve 1 has a first contact 102 on its side wall, and the height of the first contact 102 of each pressure relief valve 1 is different. The valve body identification structure 3 includes: a plurality of second contacts 301 arranged sequentially from top to bottom on the side wall of the mounting cavity and all electrically connected to the controller. The second contacts 301 at different heights can contact the first contact 102 of the corresponding pressure relief valve 1 to identify the current pressure relief valve 1.

[0053] Specifically, in the first embodiment, each second contact 301 forms an independent circuit, and each circuit is connected to the controller. When the first contact 102 of the low-pressure limiting valve 1 is connected to the second contact 301 of the mounting cavity of the limiting valve 1, the circuit is turned on, and the controller processes and receives the electrical signal of the low-pressure limiting valve 1 to determine that the low-pressure limiting valve 1 is installed in the mounting cavity. Similarly, when the medium-pressure limiting valve 1 and the high-pressure limiting valve 1 are connected to the corresponding second contact 301, their respective circuits are turned on, and the controller can identify different limiting valves 1.

[0054] Second embodiment: An electronic identification component for identifying the pressure relief valve 1 can also be provided in each pressure relief valve 1. The valve body identification structure 3 includes: a third contact that is provided on the side wall of the mounting cavity and electrically connected to the controller, which can contact the electronic identification components of different pressure relief valves 1 to determine the rated pressure of the pressure relief valve. Specifically, the electronic identification component can be a reed switch, Hall switch, etc.

[0055] Specifically, the valve body identification structure 3 mentioned above is just an example. This application does not limit the valve body identification structure 3, as long as it can identify that the pressure limiting valve 1 placed in the installation cavity is a different pressure limiting valve 1.

[0056] Preferably, this application provides a valve body detection structure 4 on the side wall of the mounting cavity, which can be a micro switch electrically connected to the controller. The micro switch is normally open. When the pressure relief valve 1 is installed in the mounting cavity, the micro switch contacts can be squeezed to enter the closed state, so as to determine whether the pressure relief valve 1 is installed.

[0057] Specifically, a permanent magnet can be installed inside the pressure relief valve 1, and a reed switch or Hall effect switch can be installed on the upper cover 201 of the cookware body 2. The pressure relief valve 1 can be determined to be installed by the mutual sensing between the components on the pressure relief valve 1 and the components on the upper cover 201 of the cookware body 2.

[0058] Specifically, the controller installed inside the cookware body 2 is a microcomputer. The microcomputer first stores the rated pressure values ​​corresponding to each pressure limiting valve 1. For example, it stores the pressure of the low-pressure limiting valve 1 as 0.1 kPa-1 kPa. When it is determined that the pressure limiting valve 1 currently installed in the installation cavity is the low-pressure limiting valve 1, it can associate the current pressure limiting valve 1 with the pressure value of 0.1 kPa-1 kPa. Then it determines whether the pressure required in the input pressurized cooking command is within the range of 0.1 kPa-1 kPa. If so, it is considered a match; otherwise, it is considered a mismatch.

[0059] Please see Figure 3 In another aspect, this application provides a method for operating a cookware equipped with multiple pressure relief valves, comprising:

[0060] When receiving information that the pressure relief valve 1 is installed in the mounting cavity of the cookware body 2, the rated pressure of the current pressure relief valve 1 is identified;

[0061] When a user inputs a pressure cooking command, it determines whether the pressure contained in the pressure cooking command matches the rated pressure of the current pressure relief valve 1;

[0062] If a match is found, proceed to the pressure cooking mode corresponding to the pressure cooking command;

[0063] Otherwise, issue the first prompt to the user.

[0064] Specifically, if this cookware is used to cook other types of food, the food may not be cooked through or may be overheated due to insufficient or excessive pressure inside the pot, resulting in a poor taste. The controller can determine whether the rated pressure of the current pressure limiting valve 1 matches the pressure cooking command input by the user. If they match, the cookware can directly cook according to the pressure cooking command input by the user. Otherwise, the cookware can issue an alarm to indicate that the current pressure cooking command does not match the current pressure limiting valve 1. If the user continues to use the current pressure limiting valve 1 for cooking, the cookware can continue to work, but the cooking effect will be poor.

[0065] Please see Figure 4 Preferably, after identifying the rated pressure of the current pressure relief valve 1 and before entering the pressurized cooking mode corresponding to the current pressure relief valve 1, the method further includes:

[0066] Obtain the rated pressure of the current cookware body 2;

[0067] Determine whether the rated pressure of the current cookware body 2 matches the rated pressure of the current pressure relief valve 1;

[0068] If a match is found, the cookware is determined to be in a safe working state.

[0069] If not, it indicates that the cookware is currently in an unsafe working condition.

[0070] Specifically, after determining the safe condition of the cookware, the pressure cooking mode corresponding to the pressure cooking command includes:

[0071] If it is determined that the cookware is in a safe working condition, enter the pressure cooking mode corresponding to the pressure cooking command;

[0072] If the cookware is detected to be in an unsafe state, the cookware body 2 will emit a warning sound, prompting the user to replace it with a pressure relief valve 1 that matches the pressure of the cookware body 2. If the user does not replace the pressure relief valve 1 and continues to cook according to the pressure cooking command, the cookware body 2 can still work, but it will enter the pressure cooking mode limited by the rated pressure of the cookware body 2.

[0073] For example:

[0074] Low-pressure rice cookers can be equipped with low-pressure limiting valve 1, medium-pressure limiting valve 1, and high-pressure limiting valve 1. The best choice is low-pressure limiting valve 1, as the controller will determine that the cooker is in a safe working state. If medium-pressure limiting valve 1 or high-pressure limiting valve 1 is installed, the controller will determine that the cooker is in an unsafe state and will limit the function of medium-pressure limiting valve 1 and high-pressure limiting valve 1. The controller will limit the cooker body 2 to work only within the range of 0.1 kPa-1 kPa.

[0075] Medium-pressure rice cookers can be equipped with low-pressure limiting valve 1, medium-pressure limiting valve 1, and high-pressure limiting valve 1. The best choice is medium-pressure limiting valve 1. If low-pressure limiting valve 1 or medium-pressure limiting valve 1 is selected, both are within a safe working state. If high-pressure limiting valve 1 is selected, the controller will determine that the cooker is in an unsafe state and will limit the function of high-pressure limiting valve 1. The controller limits the cooker body 2 to work only within the range of 0.1 kPa-20 kPa.

[0076] Pressure cookers can be equipped with low-pressure limiting valve 1, medium-pressure limiting valve 1, and high-pressure limiting valve 1, offering the highest compatibility and enabling them to operate normally according to the working pressure threshold of different limiting valves 1.

[0077] Specifically, a pressure sensor can be installed on the upper cover 201 of the cookware body 2 to sense the gas pressure inside the cookware body 2. The pressure sensor is electrically connected to the controller and continuously sends data on the current gas pressure inside the cookware body 2 to the controller.

[0078] Specifically, the above-mentioned method for restricting the cookware body 2 from operating in the non-installed state is as follows:

[0079] When the controller receives a signal from the pressure sensor that the pressure inside the cookware body 2 has reached the upper limit of the safe working range, it can control the power to the cookware body 2 to prevent the gas pressure inside the cookware body 2 from continuing to rise.

[0080] Specifically, the rated pressure of the cookware body 2 is pre-stored in the controller. When the valve body recognition structure 3 recognizes the corresponding pressure limiting valve 1, it can automatically compare the rated pressure of the cookware body 2 with the rated pressure of the pressure limiting valve 1. Specifically, the comparison is performed using the minimum value within the pressure range.

[0081] Specifically, in order to adapt to the pressure of different pressure limiting valves 1 and provide high-temperature and high-pressure gas to the cookware body 2, preferably, after identifying the rated pressure of the current pressure limiting valve 1 and before entering the pressurized cooking mode corresponding to the current pressure limiting valve 1, the method further includes: adjusting the highest temperature sensing threshold of the temperature sensing device set on the cookware body 2 to the threshold corresponding to the current rated pressure.

[0082] For example:

[0083] When the low-pressure limiting valve 1 is installed on the cookware body 2, the threshold of the temperature sensor on the top of the cookware body 2 is kept at 95℃. When the temperature exceeds 95℃, it will automatically switch to cooling and heat preservation.

[0084] When the medium-pressure limiting valve 1 is inserted into the cookware body 2, the threshold of the top temperature sensor is raised to 100°C. When the temperature exceeds 100°C, it will automatically switch to cooling and heat preservation.

[0085] When the cookware body 2 is inserted into the high-pressure limiting valve 1, the threshold of the top temperature sensor is raised to 110°C. When the temperature exceeds 110°C, it will automatically switch to cooling and heat preservation modes.

[0086] If the maximum temperature sensing threshold is not adjusted, it will be difficult to generate high temperature and high pressure gas in the cookware body 2 for cooking. Specifically, during adjustment, the controller adjusts the maximum temperature sensing threshold of the temperature sensing device based on the different rated pressure after identifying different pressure limiting valves 1 or after identifying the rated pressure of the cookware body 2.

[0087] Preferably, after receiving the pressure cooking command and before controlling the cookware body 2 to enter the corresponding pressure cooking mode, the method further includes: checking whether the signal of the current pressure limiting valve 1 has been received; if not, issuing a second prompt.

[0088] Specifically, users can input either a pressure cooking command or a non-pressure cooking command into the cookware body 2. The pressure cooking command will put the cookware body 2 into pressure cooking mode, that is, pressure cooking of the food inside the cookware body 2. The pressure cooking command will put the cookware body 2 into non-pressure cooking mode, that is, normal non-pressure cooking of the food inside the cookware body 2.

[0089] Specifically, upon issuing the second prompt and receiving a non-pressure cooking command, the rice cooker enters the non-pressure cooking mode. Even when the cooker body 2 lacks a pressure valve, heating can still be performed, but the user must select the appropriate mode. If the lid is open, the rice cooker heating device will continue heating after starting; this can be considered a simmering or hot pot mode. If the user closes the lid 201, it enters the closed-lid mode, which is a non-pressure cooking mode, functioning as a regular rice cooker, and can be used as such.

[0090] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A cookware equipped with multiple pressure-limiting valves, characterized in that, include: The cookware body (2) and multiple pressure limiting valves (1) with different rated pressures are provided inside the cookware body (2) for controlling the cookware body (2) to enter different pressure cooking modes. The top is provided with an installation cavity for different pressure limiting valves (1) to be embedded in, and a valve body identification structure (3) electrically connected to the controller is provided on the side wall of the installation cavity. It can contact the current pressure limiting valve (1) embedded in the installation cavity, detect the rated pressure of the current pressure limiting valve (1) and send information to the controller, so that the controller can determine whether the rated pressure of the current pressure limiting valve (1) matches the pressure cooking command input by the user. Each pressure relief valve (1) has a first contact (102) on its side wall that conducts the pressure relief valve (1), and the height of the first contact (102) of each pressure relief valve (1) is different. The valve body identification structure (3) includes: a plurality of second contacts (301) arranged sequentially from top to bottom on the side wall of the mounting cavity and electrically connected to the controller, wherein the second contacts (301) of different heights can contact the first contact (102) corresponding to different pressure relief valves (1) to identify the current pressure relief valve (1); or Each pressure relief valve (1) is provided with an electronic identification element for identifying the pressure relief valve (1). The valve body identification structure (3) includes a third contact disposed on the side wall of the mounting cavity and electrically connected to the controller, which can contact the electronic identification element corresponding to different pressure relief valves (1) to identify different pressure relief valves.

2. The cookware equipped with multiple pressure-limiting valves according to claim 1, characterized in that, Also includes: The valve body detection structure (4), which is located on the side wall of the mounting cavity and electrically connected to the controller, can contact the pressure limiting valve (1) installed in the mounting cavity to determine whether the pressure limiting valve (1) is installed.

3. A method for operating a cookware equipped with multiple pressure relief valves, characterized in that, Based on the cookware according to claim 1 or 2 above, the method includes the following steps: When receiving information that the pressure relief valve (1) is installed in the mounting cavity of the cookware body (2), the rated pressure of the pressure relief valve (1) is identified; When a user inputs a pressure cooking command, it is determined whether the pressure contained in the pressure cooking command matches the rated pressure of the current pressure limiting valve (1); If a match is found, the system will enter the pressure cooking mode corresponding to the pressure cooking command. Otherwise, issue the first alert.

4. The cookware working method according to claim 3, characterized in that, After identifying the rated pressure of the current pressure relief valve (1) and before entering the pressure cooking mode corresponding to the pressure cooking command, the following is also included: Obtain the rated pressure of the current cookware body (2); Determine whether the rated pressure of the current cookware body (2) matches the rated pressure of the current pressure relief valve (1); If a match is found, the cookware is determined to be in a safe working condition. If not, it indicates that the cookware is currently in an unsafe working condition.

5. The cookware working method according to claim 4, characterized in that, After determining whether the cookware is in a safe or unsafe working state, the pressure cooking mode corresponding to the pressure cooking command includes: If it is determined that the cookware is in a safe working state, the pressure cooking mode corresponding to the pressure cooking command is entered; If it is determined that the cookware is in an unsafe state, it enters the pressure cooking mode limited by the rated pressure of the cookware body (2).

6. The cookware operating method according to claim 3, characterized in that, after identifying the rated pressure of the current pressure relief valve (1) and before entering the corresponding pressure cooking mode, it further includes: Adjust the highest temperature sensing threshold of the temperature sensing device set on the cookware body (2) to the threshold corresponding to the current rated pressure.

7. The cookware operating method according to claim 3, characterized in that, after receiving the pressure cooking command and before controlling the cookware body (2) to enter the corresponding pressure cooking mode, it further includes: Check if the signal of the pressure relief valve (1) is received. If not, issue a second prompt.

8. The cookware operation method according to claim 7, characterized in that, upon issuing a second prompt and receiving a non-pressure cooking instruction, it enters a non-pressure cooking mode.

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