Cooking system and pressure attenuation compensation method for cooking system

Abstract

The invention discloses a cooking system and a pressure attenuation compensation method for the cooking system. The cooking system comprises a pot body used for cooking food materials; the pressure detection module is used for detecting the pressure change of the pot body; the temperature detection module is used for detecting the temperature change of the pot body; the pressure detection module and the temperature detection module are both electrically connected with the controller, and when the temperature detection module detects that the temperature of the pot body is smaller than or equal to the starting temperature, the controller drives the pressure detection module to conduct zero setting treatment. In the application, the temperature of the pot body is detected through the temperature detection module, and the pressure detection module is driven to perform zero setting processing when the temperature of the pot body is less than or equal to the starting temperature in combination with the temperature change of the pot body so as to correct the initial pressure, so that the pressure detection module performs zero setting processing before each cooking is started; the problem of pressure attenuation of the pressure detection module is effectively solved, and the detection precision of the pressure detection module on the pressure change of the pot body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent furniture, and in particular to a cooking system and a pressure decay compensation method for the cooking system. Background Art

[0002] The core of the pressure detection module of cooking appliances such as electric pressure cookers, pressure cookers and pressure stews is that the diaphragm can produce corresponding deformation displacement when the product is working and pressurized. This deformation displacement is then captured by the pressure sensor, thereby achieving accurate detection of the pressure of the pot body. However, as the product is used for a long time, the diaphragm of the pressure detection module may encounter a key problem: some areas of the diaphragm may undergo irreversible plastic deformation.

[0003] This plastic deformation means that even when the actual pressure of the pot body has reached or exceeded the preset value, the displacement of the diaphragm can no longer accurately reflect the actual pressure conditions. Therefore, the control decision made by the pressure sensor based on this inaccurate displacement information will cause the product's operating pressure to be lower than the originally set standard value. This deviation not only makes the pressure detection during the cooking process unreliable, but also directly leads to problems such as undercooked rice and stale soup. In short, after a period of time, the cooking performance of the product will be greatly reduced because the pressure detection module cannot accurately detect the pressure. Summary of the invention

[0004] In order to overcome at least one of the defects of the above-mentioned prior art, the present application provides a cooking system and a pressure decay compensation method for the cooking system, which effectively solves the pressure decay problem of the pressure detection module due to the use time, and improves the detection accuracy of the pressure detection module on the pressure change of the pot body.

[0005] A cooking system according to an embodiment of the present application includes: a pot body, used for cooking food; a pressure detection module, used for detecting pressure changes in the pot body; a temperature detection module, used for detecting temperature changes in the pot body; and a controller, wherein the pressure detection module and the temperature detection module are both electrically connected to the controller, and when the temperature detection module detects that the temperature of the pot body is less than or equal to the starting temperature, the controller drives the pressure detection module to perform zeroing processing.

[0006] In the present cooking system, the temperature of the pot body is detected by the temperature detection module, and combined with the temperature change of the pot body, the pressure detection module is driven to perform zeroing processing when the temperature of the pot body is less than or equal to the starting temperature to correct the initial pressure, thereby realizing the zeroing processing of the pressure detection module before each cooking starts, effectively solving the problem of pressure attenuation caused by the use time of the pressure detection module, and improving the detection accuracy of the pressure detection module on the pressure change of the pot body.

[0007] According to some embodiments of the present application, the pot body includes an outer shell and an inner pot, the outer shell is provided with a accommodating cavity, the inner pot is arranged in the accommodating cavity, and the pressure detection module and the temperature detection module are both in contact with the inner pot.

[0008] According to some embodiments of the present application, the accommodating cavity is provided with an opening, and a cover body is provided on the opening.

[0009] According to some embodiments of the present application, the pressure detection module includes a bottom sensor, and the bottom sensor abuts against the bottom of the inner pot.

[0010] According to some embodiments of the present application, the pressure detection module further includes a plurality of bottom diaphragms, the bottom diaphragms abut against the bottom of the inner pot, and the bottom sensor is connected to the bottom diaphragms.

[0011] According to some embodiments of the present application, a plurality of the bottom membranes are evenly distributed on the bottom of the inner pot.

[0012] According to some embodiments of the present application, the temperature detection module includes an NTC temperature sensor, and the NTC temperature sensor is abutted against the inner pot.

[0013] Based on the same inventive concept, the present application also proposes a pressure decay compensation method for a cooking system, which is applied to the cooking system as described above, and comprises the following steps:

[0014] S1: Detect the temperature of the pot body through the temperature detection module;

[0015] S2: Determine whether the temperature of the pot body is less than or equal to the starting temperature. If so, execute S3; if not, end the program;

[0016] S3: driving the pressure detection module to perform zeroing processing.

[0017] According to some embodiments of the present application, the following steps are further included before S1:

[0018] S01: Detect the pressure change of the pot body through the pressure detection module to determine whether the inner pot is displaced. If so, execute S1, if not, end the program.

[0019] According to some embodiments of the present application, S3 is specifically implemented by the following steps:

[0020] S31: Detect the pressure change of the pot body through the pressure detection module to determine whether the inner pot is displaced. If so, execute S32; if not, end the program;

[0021] S32: driving the pressure detection module to perform zero adjustment.

[0022] In summary, the cooking system provided by this application has the following technical effects:

[0023] The temperature of the pot body is detected by the temperature detection module, and combined with the temperature change of the pot body, the pressure detection module is driven to perform zeroing processing when the temperature of the pot body is less than or equal to the starting temperature to correct the initial pressure, thereby realizing the zeroing processing of the pressure detection module before each cooking starts, effectively solving the problem of pressure attenuation caused by the use time of the pressure detection module, and improving the detection accuracy of the pressure detection module on the pressure change of the pot body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a cooking system according to an embodiment of the present application;

[0025] Figure 2 for Figure 1 AA direction cross-sectional view;

[0026] Figure 3 This is a schematic diagram of the structure of the bottom membrane of an embodiment of the present application;

[0027] Figure 4 This is a flow chart of a pressure decay compensation method for a cooking system according to an embodiment of the present application.

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Pot body; 11. Outer shell; 12. Inner pot; 13. Accommodating chamber; 2. Pressure detection module; 21. Bottom sensor; 22. Bottom diaphragm; 3. Temperature detection module. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] Embodiment 1:

[0034] See also Figure 1 , Figure 2 and Figure 3 , this embodiment discloses a cooking system. The cooking system includes a pot body 1, a pressure detection module 2, a temperature detection module 3 and a controller. Preferably, the pot body 1 is used for cooking food; the pressure detection module 2 is used to detect the pressure change of the pot body 1; the temperature detection module 3 is used to detect the temperature change of the pot body 1; the pressure detection module 2 and the temperature detection module 3 are both electrically connected to the controller, and when the temperature detection module 3 detects that the temperature of the pot body 1 is less than or equal to the starting temperature, the controller drives the pressure detection module 2 to perform zeroing. Preferably, the temperature of the pot body 1 is detected by the temperature detection module 3, and combined with the temperature change of the pot body 1, the pressure detection module 2 is driven to perform zeroing when the temperature of the pot body 1 is less than or equal to the starting temperature, so that the pressure detection module 2 performs zeroing before each cooking starts, so as to correct the initial pressure, effectively solve the pressure attenuation problem caused by the use time of the pressure detection module 2, and improve the detection accuracy of the pressure detection module 2 on the pressure change of the pot body 1.

[0035] Optionally, the starting temperature is the ambient temperature of the location of the pot body 1, and accordingly, the temperature detection module 3 can also be used to detect the ambient temperature of the location of the pot body 1, or, the cooking system also includes an ambient temperature detection module 3, which is used to detect the ambient temperature of the location of the pot body 1; optionally, the starting temperature is pre-set by the manufacturer before leaving the factory; optionally, the starting temperature is higher than normal room temperature and lower than boiling temperature, where normal room temperature is 20℃-25℃ and boiling temperature is 97℃-100℃.

[0036] In this embodiment, the pot body 1 includes an outer shell 11 and an inner pot 12, the outer shell 11 is provided with a receiving cavity 13, the inner pot 12 is arranged in the receiving cavity 13, and the pressure detection module 2 and the temperature detection module 3 are both abutted against the inner pot 12. Optionally, the pressure detection module 2 and the temperature detection module 3 are both assembled in the receiving cavity 13, so that the inner pot 12 can be abutted against the pressure detection module 2 and the temperature detection module 3 after being placed in the receiving cavity 13, thereby optimizing the layout of components and simplifying the assembly operation of the user; preferably, the pressure detection module 2 and the temperature detection module 3 are both located at the bottom of the receiving cavity 13, effectively ensuring that after the inner pot 12 is placed in the receiving cavity 13, the pressure detection module 2 and the temperature detection module 3 can be fully abutted against the inner pot 12.

[0037] In this embodiment, the accommodating cavity 13 is provided with an opening, and a cover is provided on the opening. Preferably, the opening is opened at the upper end of the accommodating cavity 13, and correspondingly, the cover is provided at the upper end of the shell 11 and covers the opening; further, when cooking food, the accommodating cavity 13 is formed into a closed space by covering the opening with the cover, and when idle, after the inner pot 12 is removed from the accommodating cavity 13, the cover can also be covered on the opening by covering the opening with the cover, so as to avoid the pressure detection module 2 and the temperature detection module 3 being affected by the outside world and causing problems such as false triggering.

[0038] In this embodiment, the pressure detection module 2 includes a bottom sensor 21, and the bottom sensor 21 is in contact with the bottom of the inner pot 12. Optionally, the inner pot 12 can generate a certain displacement under the internal pressure, so that the inner pot 12 can apply pressure to the bottom sensor 21 located at the bottom of itself, so that the pressure change of the pot body 1 is reflected through the bottom sensor 21; Optionally, the bottom sensor 21 can be a pressure sensor or a position sensor. When the bottom sensor 21 is a position sensor, the displacement of the inner pot 12 generated by the internal pressure is monitored in real time through the position sensor, so as to reflect the pressure change of the pot body 1 in real time.

[0039] In this embodiment, the pressure detection module 2 further includes a plurality of bottom diaphragms 22, the bottom diaphragms 22 abut against the bottom of the inner pot 12, and the bottom sensor 21 is connected to the bottom diaphragms 22. Optionally, the bottom diaphragm 22 is an elastic element, the bottom diaphragm 22 abuts against the bottom of the inner pot 12, and when the pressure of the pot body 1 changes, the bottom diaphragm 22 will deform due to the pressure, so that the bottom diaphragm 22 transmits an electrical signal to the bottom sensor 21, so that the bottom sensor 21 can obtain the pressure change of the pot body 1; optionally, the bottom diaphragm 22 is a metal diaphragm or a silicone diaphragm; optionally, the bottom sensor 21 and the bottom diaphragm 22 can be electrically connected indirectly or directly.

[0040] In this embodiment, a plurality of the bottom diaphragms 22 are evenly distributed at the bottom of the inner pot 12. Optionally, a plurality of the bottom diaphragms 22 are evenly distributed at the bottom of the accommodating cavity 13 along the circumferential direction, so that after the inner pot 12 is placed in the accommodating cavity 13, a plurality of the bottom diaphragms 22 are evenly distributed at the bottom of the inner pot 12 and can fully abut against the inner pot 12 to evenly detect the pressure of the inner pot 12, thereby accurately reflecting the pressure change of the pot body 1.

[0041] In this embodiment, the temperature detection module 3 includes an NTC temperature sensor, and the NTC temperature sensor is in contact with the inner pot 12. Preferably, the NTC temperature sensor is arranged at the bottom of the accommodating cavity 13, so that after the inner pot 12 is placed in the accommodating cavity 13, the NTC temperature sensor can directly contact the inner pot 12 to obtain the temperature change of the pot body 1.

[0042] In this embodiment, the cooking system further includes a control panel, which is arranged on the outer surface of the housing 11. Optionally, the control panel is provided with a command input module and a display module, and the command input module includes but is not limited to buttons, knobs, touch screens, voice input units, etc., and the display module includes but is not limited to indicator lights, display units, voice playback units, etc.; preferably, after the cooking appliance is powered on and started, the user can input corresponding commands through the command input module on the control panel, and the display module can display / reflect / remind the user of the current state, duration, etc. of the cooking appliance, and further, when the temperature detection module 3 detects that the temperature of the pot body 1 is less than or equal to the starting temperature, the display module is used to display / reflect / remind the user whether it is necessary to perform zeroing processing on the pressure detection module 2, and if it is based on the denial command input by the user, the program is performed, and if it is based on the confirmation command input by the user, the controller is driven to drive the pressure detection module 2 to perform zeroing processing.

[0043] Embodiment 2:

[0044] See also Figure 4 This embodiment discloses a pressure decay compensation method for a cooking system, which is applied to the cooking system as described above. Preferably, the pressure decay compensation method for a cooking system comprises the following steps:

[0045] S1: Detect the temperature of the pot body 1 through the temperature detection module 3;

[0046] Specifically, the temperature of the inner pot 12 is detected by an NTC temperature sensor to obtain the temperature of the pot body 1; optionally, the NTC temperature sensor is arranged at the bottom of the accommodating cavity 13, so that after the inner pot 12 is placed in the accommodating cavity 13, the NTC temperature sensor can directly abut against the inner pot 12 to obtain the temperature change of the pot body 1, that is, when the user places the inner pot 12 in the accommodating cavity 13, the NTC temperature sensor can obtain the temperature change of the pot body 1.

[0047] S2: Determine whether the temperature of the pot body 1 is less than or equal to the starting temperature. If so, execute S3; if not, end the program;

[0048] Specifically, the temperature of the pot body 1 obtained by the NTC temperature sensor is called to determine whether the temperature of the pot body 1 is less than or equal to the starting temperature. If the temperature of the pot body 1 is less than or equal to the starting temperature, S3 is executed to perform zeroing. If the temperature of the pot body 1 is greater than the starting temperature, the program ends. Optionally, the starting temperature is the ambient temperature of the location where the pot body 1 is located. Accordingly, the temperature detection module 3 can also be used to detect the ambient temperature of the location where the pot body 1 is located. Alternatively, the cooking system also includes an ambient temperature detection module 3 for detecting the ambient temperature of the location where the pot body 1 is located; optionally, the starting temperature is pre-set by the manufacturer before leaving the factory; optionally, the starting temperature is higher than the normal room temperature and lower than the boiling temperature, wherein the normal room temperature is 20°C-25°C and the boiling temperature is 97°C-100°C.

[0049] S3: driving the pressure detection module 2 to perform zero adjustment.

[0050] Specifically, when the temperature of the pot body 1 is less than or equal to the starting temperature, the pressure detection module 2 is driven to perform zeroing processing, that is, the pressure value corresponding to the current pressure detection module 2 is readjusted to zero, so that the pressure detection module 2 is zeroed before each cooking starts to correct the initial pressure, effectively solve the pressure attenuation problem caused by the use time of the pressure detection module 2, and improve the detection accuracy of the pressure detection module 2 on the pressure change of the pot body 1.

[0051] Embodiment three:

[0052] This embodiment also discloses a pressure decay compensation method for a cooking system, which is applied to a cooking device. The main differences between the pressure decay compensation method for a cooking system described in this embodiment and the pressure decay compensation method for a cooking system described above are:

[0053] The following steps are also included before S1:

[0054] S01: Detect the pressure change of the pot body 1 through the pressure detection module 2 to determine whether the inner pot 12 is displaced. If so, execute S1, if not, end the program.

[0055] Optionally, the bottom diaphragm 22 abuts against the bottom of the inner pot 12, and the bottom diaphragm 22 abuts against the bottom of the inner pot 12, driving the bottom diaphragm 22 to deform under the action of pressure and transmit an electrical signal to the bottom sensor 21. Correspondingly, when the inner pot 12 is displaced, the bottom diaphragm 22 synchronously deforms accordingly and transmits an electrical signal to the bottom sensor 21 so that the bottom sensor 21 can obtain the pressure change of the pot body 1, thereby realizing the detection of the pressure change of the pot body 1 by the pressure detection module 2 to determine whether the inner pot 12 is displaced. If the inner pot 12 is displaced, S1 is executed to detect the temperature of the pot body 1. If the inner pot 12 is not displaced, the program is terminated. In this way, by combining the pressure change of the pot body 1 and the temperature change of the pot body 1, the pressure detection module 2 is driven to accurately perform zeroing processing after each displacement and before cooking begins to correct the initial pressure, thereby effectively avoiding cooking problems such as undercooked rice and uncooked soup caused by pressure attenuation of the pressure detection module 2, and fully ensuring the detection accuracy of the pressure detection module 2 on the pressure change of the pot body 1 during the cooking process.

[0056] Embodiment 4:

[0057] This embodiment also discloses a pressure decay compensation method for a cooking system, which is applied to a cooking device. The main differences between the pressure decay compensation method for a cooking system described in this embodiment and the pressure decay compensation method for a cooking system described above are:

[0058] The S3 is specifically implemented by the following steps:

[0059] S31: Detect the pressure change of the pot body 1 through the pressure detection module 2 to determine whether the inner pot 12 is displaced. If so, execute S32; if not, end the program;

[0060] Specifically, when the temperature of the pot body 1 is less than or equal to the starting temperature, the pressure change of the pot body 1 is detected by the pressure detection module 2 to determine whether the inner pot 12 is displaced. If the inner pot 12 is displaced, S32 is executed to perform zeroing. If the inner pot 12 is not displaced, the program is terminated.

[0061] S32: driving the pressure detection module 2 to perform zero adjustment.

[0062] Specifically, when the temperature of the pot body 1 is less than or equal to the starting temperature, and the inner pot 12 is displaced, the pressure detection module 2 is driven to perform zeroing, that is, the pressure value corresponding to the current pressure detection module 2 is readjusted to zero. In this way, by combining the pressure change of the pot body 1 and the temperature change of the pot body 1, the pressure detection module 2 is driven to accurately perform zeroing every time the temperature of the pot body 1 drops to less than or equal to the starting temperature and the inner pot 12 is displaced, thereby ensuring that the pressure detection module 2 performs zeroing before each cooking starts to correct the initial pressure, effectively avoiding cooking problems such as undercooked rice and uncooked soup caused by pressure attenuation of the pressure detection module 2, and fully ensuring the detection accuracy of the pressure detection module 2 on the pressure change of the pot body 1 during the cooking process.

[0063] The technical means disclosed in the present application are not limited to the technical means disclosed in the above-mentioned implementation methods, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also regarded as the protection scope of this application.

Claims

1. A cooking system, characterized in that: include: The pot body is used for cooking ingredients; A pressure detection module is used to detect the pressure change of the pot body; Temperature detection module, used to detect the temperature change of the pot body; The controller, the pressure detection module and the temperature detection module are both electrically connected to the controller, and when the temperature detection module detects that the temperature of the pot body is less than or equal to the starting temperature, the controller drives the pressure detection module to perform zeroing processing.

2. The cooking system according to claim 1, characterized in that: The pot body comprises an outer shell and an inner pot, the outer shell is provided with a containing cavity, the inner pot is arranged in the containing cavity, and the pressure detection module and the temperature detection module are both in contact with the inner pot.

3. The cooking system according to claim 2, characterized in that: The accommodating cavity is provided with an opening, and a cover body is provided on the opening.

4. The cooking system according to claim 2, characterized in that: The pressure detection module includes a bottom sensor, and the bottom sensor abuts against the bottom of the inner pot.

5. The cooking system according to claim 4, characterized in that: The pressure detection module further comprises a plurality of bottom diaphragms, wherein the bottom diaphragms are in contact with the bottom of the inner pot, and the bottom sensors are connected to the bottom diaphragms.

6. The cooking system according to claim 5, characterized in that: A plurality of bottom membranes are evenly distributed on the bottom of the inner pot.

7. The cooking system according to claim 2, characterized in that: The temperature detection module includes an NTC temperature sensor, and the NTC temperature sensor is in contact with the inner pot.

8. A pressure decay compensation method for a cooking system, applied to the cooking system according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Detect the temperature of the pot body through the temperature detection module; S2: Determine whether the temperature of the pot body is less than or equal to the starting temperature. If so, execute S3; if not, end the program; S3: driving the pressure detection module to perform zeroing processing.

9. The pressure decay compensation method for a cooking system according to claim 8, characterized in that: The following steps are also included before S1: S01: Detect the pressure change of the pot body through the pressure detection module to determine whether the inner pot is displaced. If so, execute S1, if not, end the program.

10. The pressure decay compensation method for a cooking system according to claim 8, characterized in that: The S3 is specifically implemented by the following steps: S31: Detect the pressure change of the pot body through the pressure detection module to determine whether the inner pot is displaced. If so, execute S32; if not, end the program; S32: driving the pressure detection module to perform zero adjustment processing.

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