CN111374540A - Pressure relief method and device of electric pressure cooker, electric pressure cooker and readable storage medium - Google Patents
Pressure relief method and device of electric pressure cooker, electric pressure cooker and readable storage medium Download PDFInfo
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- CN111374540A CN111374540A CN202010420696.9A CN202010420696A CN111374540A CN 111374540 A CN111374540 A CN 111374540A CN 202010420696 A CN202010420696 A CN 202010420696A CN 111374540 A CN111374540 A CN 111374540A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
- A47J27/092—Devices for automatically releasing pressure before opening
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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Abstract
The invention discloses a pressure relief method and a pressure relief device for an electric pressure cooker, the electric pressure cooker and a readable storage medium, wherein the method comprises the following steps: when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure, the temperature in the electric pressure cooker is obtained; judging whether the temperature is smaller than a preset temperature threshold value or not; and when the temperature is lower than the preset temperature threshold, starting an exhaust pressure reduction device of the electric pressure cooker. Compared with the prior art in which the heat dissipation structure is independently used for pressure relief, the method has the advantages that the pressure relief speed of the electric pressure cooker is higher by implementing the method, the requirement that a user opens the cover as soon as possible after cooking is completed can be met, meanwhile, the opening time of the exhaust pressure reduction device is determined according to the temperature in the electric pressure cooker, and compared with the method in which the exhaust pressure reduction device is opened for pressure relief after cooking is completed, the working energy consumption is reduced, and the use safety is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a pressure relief method and device of an electric pressure cooker, the electric pressure cooker and a readable storage medium.
Background
With the improvement of living standard, the public demand for living quality is higher and higher. Because the electric pressure cooker has the advantages of high cooking temperature, short cooking time, good food taste and the like, the electric pressure cooker can be a necessary household appliance, but after cooking is finished, the electric pressure cooker needs to exhaust and release air for a long time until the air pressure in the cooker is the same as the atmospheric pressure, and the cooker cover can be opened. At present, the electric pressure cooker on the market mainly carries out the pressure release to the electric pressure cooker through fan cooperation radiator, carries out the pressure release through cooling pressure reduction means promptly, but after the intracavity of radiator and placing the radiator reached the uniform temperature, cooling pressure reduction means's pressure release speed obviously reduced, can't realize quick pressure release.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the electric pressure cooker in the prior art cannot realize quick pressure relief, so that the pressure relief method and the pressure relief device of the electric pressure cooker, the electric pressure cooker and the readable storage medium are provided.
According to a first aspect, an embodiment of the present invention provides a pressure relief method for an electric pressure cooker, where the electric pressure cooker is provided with a cooling and pressure reducing device and an exhaust and pressure reducing device, and the method includes: when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure, the temperature in the electric pressure cooker is obtained; judging whether the temperature is smaller than a preset temperature threshold value or not; and when the temperature is less than the preset temperature threshold value, starting an exhaust pressure reduction device of the electric pressure cooker.
With reference to the first aspect, in a first implementation manner of the first aspect, the cooling and pressure reducing device includes a fan, and the pressure relief method of the electric pressure cooker further includes: and when the temperature is greater than or equal to the preset temperature threshold value, adjusting the rotating speed of the fan by utilizing the corresponding relation between the preset temperature and the rotating speed of the fan according to the temperature.
With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect, in the correspondence relationship between the temperature and the fan rotation speed, the fan rotation speed increases with a decrease in the temperature.
With reference to the first implementation manner of the first aspect, in a third implementation manner of the first aspect, adjusting the rotation speed of the fan according to the temperature by using a preset correspondence between the temperature and the rotation speed of the fan includes: determining a temperature range in which the temperature is located; and determining the rotating speed of the fan according to the temperature range.
According to a second aspect, an embodiment of the present invention provides a pressure relief device for an electric pressure cooker, wherein the electric pressure cooker is provided with a cooling pressure reduction device and an exhaust pressure reduction device, and the pressure relief device is characterized by comprising: the acquisition module is used for acquiring the temperature in the electric pressure cooker when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure; the judging module is used for judging whether the temperature is smaller than a preset temperature threshold value or not; and the first adjusting module is used for starting the exhaust pressure reduction device of the electric pressure cooker when the temperature is less than the preset temperature threshold value.
With reference to the second aspect, in a first embodiment of the second aspect, the cooling and pressure reducing device includes a blower, and the pressure relief device of the electric pressure cooker further includes: and the second adjusting module is used for adjusting the rotating speed of the fan by utilizing the corresponding relation between the preset temperature and the rotating speed of the fan according to the temperature when the temperature is more than or equal to the preset temperature threshold value.
With reference to the first embodiment of the second aspect, in a second embodiment of the second aspect, the second adjusting module includes: the temperature range determining submodule is used for determining the temperature range of the temperature; and the rotating speed determining submodule is used for determining the rotating speed of the fan according to the temperature range.
According to a third aspect, an embodiment of the present invention provides an electric pressure cooker, including: the cooling and pressure reducing device is used for reducing the temperature inside the electric pressure cooker; the exhaust pressure reducing device is used for reducing the pressure inside the electric pressure cooker; the temperature sensor is used for acquiring the temperature in the electric pressure cooker when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure; the pressure relief method of the electric pressure cooker comprises a memory and a processor, wherein the memory and the processor are in communication connection with each other, computer instructions are stored in the memory, and the processor executes the computer instructions so as to execute the pressure relief method of the electric pressure cooker according to the first aspect or any embodiment of the first aspect.
With reference to the third aspect, in a first embodiment of the third aspect, the cooling and pressure reducing device includes a fan, the exhaust pressure reducing device includes an exhaust valve, and the pressure relief device further includes: the exhaust valve control device is connected with an exhaust valve in the exhaust pressure reducing device and is used for controlling the opening or closing of the exhaust valve; and the fan control device is connected with a fan in the cooling and pressure reducing device and is used for adjusting the rotating speed of the fan.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are configured to enable the computer to execute the method for relieving pressure of an electric pressure cooker according to the first aspect or any embodiment of the first aspect.
The technical scheme of the invention has the following advantages:
1. according to the pressure relief method and the pressure relief device for the electric pressure cooker, provided by the invention, the relation between the temperature in the electric pressure cooker and the preset temperature threshold is judged by acquiring the temperature in the electric pressure cooker, and if the temperature is not less than the preset temperature threshold, the pressure is reduced only by the cooling and pressure reducing device; when the temperature is lower than the preset temperature threshold value, the exhaust pressure reducing device of the electric pressure cooker is started, and the exhaust pressure reducing device and the cooling pressure reducing device act together to realize rapid pressure reduction. Compared with the prior art that the cooling and pressure reducing device is used for pressure reduction independently, the pressure reduction method is higher in speed, and the requirement that a user opens the cover as soon as possible after cooking is completed can be met; meanwhile, the method determines the starting time of the exhaust pressure reducing device according to the temperature on the heat preservation cover of the electric pressure cooker, and compared with the method that the exhaust pressure reducing device is opened for pressure relief after cooking is finished, the method reduces the energy consumption of the electric pressure cooker because the exhaust pressure reducing device is started only when the temperature is smaller than a preset temperature threshold.
2. According to the electric pressure cooker, the temperature sensor is arranged to acquire the temperature in the electric pressure cooker, when the temperature value is not less than the preset temperature threshold value, the cooling pressure reduction device is used for pressure relief, when the temperature value is less than the preset temperature threshold value, the exhaust pressure reduction device is started, the exhaust pressure reduction device and the cooling pressure reduction device are used for realizing rapid pressure reduction under the combined action, the starting time of the exhaust pressure reduction device is determined according to the temperature in the electric pressure cooker, the explosion phenomenon of the electric pressure cooker is avoided while the working energy consumption of the electric pressure cooker is reduced, and the use safety is further guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a pressure relief method of an electric pressure cooker in the embodiment of the invention;
FIG. 2 is a flow chart of a pressure relief method of the electric pressure cooker in the embodiment of the invention;
FIG. 3 is a flow chart of a pressure relief method of the electric pressure cooker in the embodiment of the invention;
FIG. 4 is a schematic view of the opening/closing of the exhausting and depressurizing device of the electric pressure cooker in the embodiment of the invention;
FIG. 5 is a schematic diagram illustrating fan speed adjustment according to an embodiment of the present disclosure;
FIG. 6 is a schematic block diagram of a pressure relief device of an electric pressure cooker in an embodiment of the present invention;
FIG. 7 is a schematic block diagram of an electric pressure cooker in an embodiment of the present invention;
FIG. 8 is a schematic view of the pressure relief structure of the electric pressure cooker in the embodiment of the invention;
FIG. 9 is a flow chart of controlling the electric pressure cooker to release pressure according to the embodiment of the present invention;
wherein:
311-a fan; 312-a heat sink; 313-a support; 314-inner pot; 315-outer pot; 321-an exhaust valve; 322-pot cover.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a pressure relief method of an electric pressure cooker, which is suitable for a cooking electric pressure cooker provided with a cooling pressure reduction device and an exhaust pressure reduction device. As shown in figure 1, the pressure relief method of the electric pressure cooker comprises the following steps:
s11, when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure, the temperature in the electric pressure cooker is obtained.
Exemplarily, when the electric pressure cooker finishes cooking, the initial air pressure inside the electric pressure cooker is higher than the ambient atmospheric pressure, and at the moment, the electric pressure cooker needs to be decompressed, and the electric power cooker cover can be opened when the internal atmospheric pressure is equal to the ambient atmospheric pressure. According to an ideal gas state equation: PV ═ nRT, where P is pressure, V is volume, R is a rational gas constant, and n is the amount of gaseous species. According to the ideal gas state equation, when the temperature T in the electric pressure cooker is reduced, the pressure P is reduced, and the pressure can reflect the bearing pressure per unit area, so that the pressure in the electric pressure cooker can be reflected by using the pressure. After the temperature in the electric pressure cooker reaches a certain temperature, the heat exchange capacity begins to be reduced, the pressure relief speed is reduced, and the exhaust pressure reduction device can be opened at the moment, so that the exhaust pressure reduction device and the cooling pressure reduction device act simultaneously to realize rapid pressure relief.
When the electric pressure cooker finishes cooking, the initial air pressure inside the electric pressure cooker is higher, and the pressure can be quickly reduced by cooling, namely the air pressure in the electric pressure cooker is quickly reduced, so that when the electric pressure cooker finishes cooking, the temperature in the electric pressure cooker can be reduced by adopting the cooling and pressure reducing device, and the reduction of the air pressure in the electric pressure cooker is realized by reducing the temperature. In an optional embodiment, when the cooling and pressure reducing device is used for reducing the pressure, the temperature in the electric pressure cooker can be reflected by the temperature on the heat-insulating cover plate of the electric pressure cooker, and the temperature on the heat-insulating cover plate of the electric pressure cooker can be obtained through a temperature sensor arranged on the heat-insulating cover plate of the electric pressure cooker.
And S12, judging whether the temperature is smaller than a preset temperature threshold value.
Illustratively, the preset temperature threshold is a temperature value at which the heat exchange capacity of the electric pressure cooker is reduced and the popping phenomenon cannot occur, and can be used as a critical temperature value for judging whether the exhaust pressure reduction device of the electric pressure cooker needs to be started or not. The preset temperature threshold value can be set according to the rated power or other parameters of the electric pressure cooker, and the preset temperature threshold value is not limited in the application and can be determined by a person skilled in the art according to actual needs.
And S13, when the temperature is less than the preset temperature threshold, the exhaust pressure reduction device of the electric pressure cooker is started.
Exemplarily, when the temperature sensor detects that the temperature inside the electric pressure cooker is less than a preset temperature threshold value, the heat exchange capacity of the electric pressure cooker is reduced at the moment, the exhaust pressure reducing device is opened, the electric pressure cooker cannot generate an explosion boiling phenomenon, fluid food is prevented from being sprayed out from an exhaust port, the exhaust pressure reducing device of the electric pressure cooker is opened at the moment, air injection heat dissipation can be carried out through the exhaust port, and the air pressure in the electric pressure cooker can be quickly reduced by combining the cooling pressure reducing device.
According to the pressure relief method of the electric pressure cooker, the relation between the temperature in the electric pressure cooker and a preset temperature threshold is judged by acquiring the temperature in the electric pressure cooker, and if the temperature is not less than the preset temperature threshold, the pressure is reduced only by a cooling and pressure reducing device; when the temperature is lower than the preset temperature threshold value, the exhaust pressure reducing device of the electric pressure cooker is started, and the exhaust pressure reducing device and the cooling pressure reducing device act together to realize rapid pressure reduction. Compared with the prior art that the cooling and pressure reducing device is used for pressure reduction independently, the pressure reduction method is higher in speed, and the requirement that a user opens the cover as soon as possible after cooking is completed can be met; meanwhile, the method determines the opening time of the exhaust valve in the exhaust pressure reduction device according to the internal pressure value, and compared with the method that the exhaust valve is opened for pressure relief after cooking is finished, the method can reduce the working energy consumption of the electric pressure cooker and improve the use safety.
As an alternative embodiment of the present invention, as shown in fig. 2, the pressure relief method of the electric pressure cooker may further include:
and S14, when the temperature is greater than or equal to the preset temperature threshold value, adjusting the rotating speed of the fan 311 by utilizing the corresponding relation between the preset temperature and the rotating speed of the fan according to the temperature.
Illustratively, when the temperature that temperature sensor detected is greater than or equal to the preset temperature threshold, the representation this moment through cooling pressure reduction means carry out the pressure release can, need not to open exhaust pressure reduction means. If the problem that the electric pressure cooker is exposed to the explosion boiling phenomenon when the exhaust pressure reducing device is opened at the moment, fluid food can be sprayed out from the exhaust port, in order to avoid the situation, the exhaust pressure reducing device can be kept closed at the moment, the pressure is reduced only by using the cooling pressure reducing device, the fan rotating speed corresponding to the temperature is determined by detecting the temperature in the electric pressure cooker, the air quantity is controlled by adjusting the rotating speed of the fan 311 to exchange heat, the temperature is reduced, the purpose of reducing the internal air pressure of the electric pressure cooker is achieved, the explosion boiling phenomenon of the electric pressure cooker is avoided, and the use safety.
As an alternative embodiment of the present invention, in the correspondence relationship between the temperature and the fan rotation speed in step S14, the fan rotation speed increases with a decrease in the temperature.
Illustratively, according to the ideal gas state equation, when the temperature T in the electric pressure cooker is reduced, the pressure P is also reduced, and as the temperature is reduced, the pressure is reduced, and in order to realize rapid heat dissipation and avoid reduction of heat exchange capability, the rotating speed of the fan can be properly increased, so that the temperature reduction speed in the electric pressure cooker is increased, and further the reduction speed of the air pressure in the electric pressure cooker is increased.
As an alternative embodiment of the present invention, as shown in fig. 3, the step S14 may include:
and S141, determining the temperature range of the temperature.
For example, the temperature range can be set according to the power and other parameters of the electric pressure cooker, and the temperature can be obtained according to a temperature sensor arranged on a heat preservation cover of the electric pressure cooker. When the temperature acquired by the temperature sensor is more than or equal to the preset threshold value, the cooling and pressure reducing device is only required to be started at the moment, the temperature value in the electric pressure cooker can be divided into a plurality of ranges, and the cooling and pressure reducing device determines the temperature range according to the temperature in the current electric pressure cooker. For example, the temperature inside the electric pressure cooker is divided into three ranges (T4, T3), (T3, T2), and (T2, T1), and it is necessary to determine which temperature range the temperature T is in at this time according to the temperature T acquired by the temperature sensor arranged in the electric pressure cooker.
And S142, determining the rotating speed of the fan 311 according to the temperature range.
Illustratively, the rotation speed of the fan 311 is adjusted to a corresponding value according to the determined temperature range, so as to ensure that the air pressure in the electric pressure cooker can be reduced along with the reduction of the temperature. For example, the temperature in the electric pressure cooker is divided into three ranges (T4, T3), (T3, T2), (T2, T1). When the temperature T is at (T2, T1), the fan speed is adjusted to N1; when the temperature T is at (T3, T2), the fan speed is adjusted to N2; when the temperature T is at (T4, T3), the fan speed is adjusted to N3.
The temperature in the electric pressure cooker is segmented, the rotating speed of the fan is adjusted according to the temperature in the electric pressure cooker, and the pressure relief of the electric pressure cooker is controlled by adopting a temperature segmentation method, so that the influence of heat exchange capacity reduction on temperature reduction in the electric pressure cooker is reduced, the reduction speed of the air pressure in the electric pressure cooker is ensured, and the electric pressure cooker is further ensured to realize rapid pressure relief.
In a specific embodiment, the temperature in the electric pressure cooker is divided into four ranges (0, T4), (T4, T3), (T3, T2), (T2, T1), and the temperature T4 is used as a preset temperature threshold. When the temperature T in the electric pressure cooker is more than or equal to T4, only starting the cooling and pressure reducing device to reduce the pressure; when the temperature T of the electric pressure cooker is less than T4, the exhaust pressure reducing device of the electric pressure cooker is turned on, the rotating speed of the fan 311 is adjusted, and the cooling pressure reducing device and the exhaust pressure reducing device act simultaneously to perform pressure relief, as shown in fig. 4. When the temperature T in the electric pressure cooker is greater than or equal to T4 and only the cooling and pressure reducing device is started for pressure reduction, the temperature range of the temperature T in the current electric pressure cooker is determined, and the corresponding fan rotating speed is determined according to the determined temperature range. The temperature in the electric pressure cooker is segmented, the corresponding fan rotating speed is adjusted according to the temperature range of the temperature in the electric pressure cooker, a pressure relief control method of temperature segmentation is adopted, the opening time of the exhaust and pressure reduction device is determined according to the temperature change, and the working energy consumption of the electric pressure cooker can be reduced while the quick pressure relief of the electric pressure cooker is realized.
As shown in fig. 5, when the temperature T is at (T2, T1), the fan rotation speed is adjusted to N1; when the temperature T is at (T3, T2), the fan speed is adjusted to N2; when the temperature T is at (T4, T3), the fan speed is adjusted to N3; when the temperature T is at (0, T4), the fan speed is adjusted to N0. For example, T1 ═ 120 ℃, T2 ═ 110 ℃, T3 ═ 105 ℃, T4 ═ 102 ℃. When the temperature T is (110 ℃, 120 ℃), the exhaust pressure reducing device is turned off, the cooling pressure reducing device is turned on, and the rotation speed of the fan 311 is adjusted to N1 ═ 2000 rpm; when the temperature T is (105 ℃, 110 ℃), the exhaust pressure reducing device is turned off, the cooling pressure reducing device is turned on, and the rotation speed of the fan 311 is adjusted to N2 ═ 2500 rpm; when the temperature T is (102 ℃, 105 ℃), the exhaust pressure reducing device is still closed, the cooling pressure reducing device is opened, and the rotation speed of the fan 311 is adjusted to N3-3000 rpm; when the temperature T is less than 102 ℃, the exhaust pressure reducing device is turned on, and at this time, the rotation speed of the fan 311 may be adjusted to N0 ═ 2000rpm, where the rotation speed N0 of the fan 311 may be, but is not limited to, equal to N1.
Example 2
This embodiment provides an electric pressure cooker pressure relief device for be equipped with cooling pressure reduction means and exhaust pressure reduction means's electric pressure cooker for the culinary art, as shown in fig. 6, include:
and the obtaining module 20 is used for obtaining the temperature in the electric pressure cooker when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure.
And the judging module 22 is configured to judge whether the temperature is smaller than a preset temperature threshold.
And the first adjusting module 24 is used for starting an exhaust pressure reduction device of the electric pressure cooker when the temperature is less than a preset temperature threshold value.
According to the pressure relief device of the electric pressure cooker, the temperature in the electric pressure cooker is acquired through the acquisition module, the judgment module judges the relation between the temperature and the preset temperature threshold value, and if the temperature is not less than the preset temperature threshold value, the pressure is reduced only through the cooling and pressure reducing device; when the temperature is lower than the preset temperature threshold value, the exhaust pressure reduction device of the electric pressure cooker is started through the first adjusting module, so that the exhaust pressure reduction device and the cooling pressure reduction device act together to realize rapid pressure reduction. Compared with the prior art that the cooling and pressure reducing device is used for pressure relief independently, the pressure relief device is higher in pressure relief speed, and the requirement that a user opens the cover as soon as possible after cooking is completed can be met; meanwhile, the opening time of the exhaust valve is determined according to the temperature in the electric pressure cooker, and the exhaust valve is opened only when the pressure value is smaller than the preset threshold value, so that compared with the method that the exhaust valve is opened for pressure relief after cooking is finished, the method can reduce the working energy consumption of the electric pressure cooker and improve the use safety.
As shown in fig. 8, the cooling and pressure reducing device of the electric pressure cooker may include a blower 311, and as an alternative embodiment of the present application, the pressure relief device of the electric pressure cooker further includes:
and the second adjusting module is configured to adjust the rotation speed of the fan 311 according to the temperature by using a corresponding relationship between the preset temperature and the fan rotation speed when the temperature is greater than or equal to the preset temperature threshold.
As an optional implementation manner of the present application, the second adjusting module includes:
and the temperature range determination submodule is used for determining the temperature range in which the temperature is positioned.
And the rotating speed determining submodule is used for determining the rotating speed of the fan 311 according to the temperature range.
The pressure relief device of the electric pressure cooker provided by the embodiment has the advantages that the temperature in the electric pressure cooker is segmented, the rotating speed of the fan is adjusted according to the temperature in the electric pressure cooker, the influence of the reduction of the heat exchange capacity on the reduction of the temperature in the electric pressure cooker is reduced, and the rapid pressure relief of the electric pressure cooker is realized by adopting a control method of temperature segmented pressure relief.
Example 3
This embodiment provides an electric pressure cooker, as shown in fig. 7, including: the cooling and pressure reducing device 31 is used for reducing the temperature inside the electric pressure cooker, the cooling and pressure reducing device 31 may include a fan 311 and a heat sink 312, the heat sink 312 may be mounted on the inner pot 314 through a support 313, wherein the inner pot 314 and the outer pot 315 are nested, as shown in fig. 8; the exhaust pressure reducing device 32 is used for reducing the pressure inside the electric pressure cooker, and the exhaust pressure reducing device 32 may comprise an exhaust valve 321, wherein the exhaust valve 321 is installed on a cooker cover 322 of the electric pressure cooker, as shown in fig. 8; a temperature sensor 33 for acquiring the temperature inside the electric pressure cooker when the electric pressure cooker lowers the pressure by using the cooling and pressure lowering device; a memory 34 and a processor 35, wherein the processor 35 and the memory 34 may be connected by a bus or other means, and fig. 7 illustrates an example of a connection by the bus 30.
The processor 35 may be a Central Processing Unit (CPU). The Processor 35 may also be other general purpose processors, Digital Signal Processors (DSPs), Graphics Processing Units (GPUs), embedded Neural Network Processors (NPUs), or other dedicated deep learning coprocessors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or any combination thereof.
The memory 34, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules (e.g., the acquiring module 20, the determining module 22, and the first adjusting module 24 shown in fig. 6) corresponding to the pressure relief method of the electric pressure cooker in the embodiment of the present invention. The processor 35 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory 34, that is, the pressure relief method of the electric pressure cooker in the above method embodiment is realized.
The memory 34 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 35, and the like. Further, the memory 34 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 34 may optionally include memory located remotely from processor 35, which may be connected to processor 35 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Said one or more modules are stored in said memory 34 and when executed by said processor 35, perform the pressure relief method of the electric pressure cooker as in the embodiment shown in fig. 1-5.
The relation between the temperature in the electric pressure cooker and a preset temperature threshold is judged by acquiring the temperature in the electric pressure cooker, and if the temperature is not less than the preset temperature threshold, the pressure is reduced only by a cooling and pressure reducing device; when the temperature is lower than the preset temperature threshold value, the exhaust pressure reducing device of the electric pressure cooker is started, and the exhaust pressure reducing device and the cooling pressure reducing device act together to realize rapid pressure reduction. Compared with the prior art that the cooling and pressure reducing device is used for pressure reduction independently, the pressure reduction method is higher in speed, and the requirement that a user opens the cover as soon as possible after cooking is completed can be met; meanwhile, the method determines the starting time of the exhaust pressure reducing device according to the temperature on the heat preservation cover of the electric pressure cooker, and compared with the method that the exhaust pressure reducing device is opened for pressure relief after cooking is finished, the method reduces the energy consumption of the electric pressure cooker because the exhaust pressure reducing device is started only when the temperature is smaller than a preset temperature threshold.
The details of the electric pressure cooker can be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to 6, which are not described herein again.
As an optional embodiment of the present application, the electric pressure cooker further comprises: the exhaust valve control device is connected with an exhaust valve in the exhaust pressure reducing device and is used for controlling the opening or closing of the exhaust valve; when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure, the exhaust valve is kept closed; after the exhaust pressure reducing device is started, controlling an exhaust valve to be opened; and the fan control device is connected with a fan in the cooling and pressure reducing device and is used for adjusting the rotating speed of the fan. As shown in fig. 9, the electric pressure cooker can realize the rapid pressure relief of the electric pressure cooker through the combined action of the exhaust valve control device and the fan control device.
The embodiment of the invention also provides a non-transient computer storage medium, wherein the computer storage medium stores computer executable instructions which can execute the pressure relief method of the electric pressure cooker in any method embodiment. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard disk (Hard disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The pressure relief method of the electric pressure cooker is characterized by comprising the following steps of:
when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure, the temperature in the electric pressure cooker is obtained;
judging whether the temperature is smaller than a preset temperature threshold value or not;
and when the temperature is less than the preset temperature threshold value, starting an exhaust pressure reduction device of the electric pressure cooker.
2. The method of claim 1, the cooled pressure reduction device comprising a fan, further comprising:
and when the temperature is greater than or equal to the preset temperature threshold value, adjusting the rotating speed of the fan by utilizing the corresponding relation between the preset temperature and the rotating speed of the fan according to the temperature.
3. The method of claim 2, wherein in the temperature to fan speed correspondence, the fan speed increases as the temperature decreases.
4. The method of claim 2, wherein adjusting the rotational speed of the fan according to the temperature using a preset temperature to fan rotational speed correspondence comprises:
determining a temperature range in which the temperature is located;
and determining the rotating speed of the fan according to the temperature range.
5. The utility model provides an electric pressure cooker pressure relief device, be equipped with cooling pressure reduction means and exhaust pressure reduction means on the electric pressure cooker, its characterized in that includes:
the acquisition module is used for acquiring the temperature in the electric pressure cooker when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure;
the judging module is used for judging whether the temperature is smaller than a preset temperature threshold value or not;
and the first adjusting module is used for starting the exhaust pressure reduction device of the electric pressure cooker when the temperature is less than the preset temperature threshold value.
6. The apparatus of claim 5, said cooling and pressure reducing device comprising a fan, further comprising:
and the second adjusting module is used for adjusting the rotating speed of the fan by utilizing the corresponding relation between the preset temperature and the rotating speed of the fan according to the temperature when the temperature is more than or equal to the preset temperature threshold value.
7. The apparatus of claim 6, wherein the second adjustment module comprises:
the temperature range determining submodule is used for determining the temperature range of the temperature;
and the rotating speed determining submodule is used for determining the rotating speed of the fan according to the temperature range.
8. An electric pressure cooker, characterized in that, includes:
the cooling and pressure reducing device is used for reducing the temperature inside the electric pressure cooker;
the exhaust pressure reducing device is used for reducing the pressure inside the electric pressure cooker;
the temperature sensor is used for acquiring the temperature in the electric pressure cooker when the electric pressure cooker utilizes the cooling and pressure reducing device to reduce the pressure;
a memory and a processor, wherein the memory and the processor are connected with each other in a communication way, the memory stores computer instructions, and the processor executes the computer instructions to execute the pressure relief method of the electric pressure cooker according to any one of claims 1 to 4.
9. The electric pressure cooker of claim 8, wherein the cooling and pressure reducing device comprises a fan, and the exhaust and pressure reducing device comprises an exhaust valve, and further comprising:
the exhaust valve control device is connected with an exhaust valve in the exhaust pressure reducing device and is used for controlling the opening or closing of the exhaust valve;
and the fan control device is connected with a fan in the cooling and pressure reducing device and is used for adjusting the rotating speed of the fan.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the pressure relief method of the electric pressure cooker according to any one of claims 1-4.
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| CN202010420696.9A CN111374540A (en) | 2020-05-18 | 2020-05-18 | Pressure relief method and device of electric pressure cooker, electric pressure cooker and readable storage medium |
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| CN112617587A (en) * | 2020-12-31 | 2021-04-09 | 珠海格力电器股份有限公司 | Fan housing structure, cooking utensil and control method of cooking utensil |
| CN112754277A (en) * | 2020-12-31 | 2021-05-07 | 珠海格力电器股份有限公司 | Fan housing structure, cooking utensil and control method of cooking utensil |
| CN113367557A (en) * | 2021-07-17 | 2021-09-10 | 珠海格力电器股份有限公司 | Cooking utensil and temperature control method thereof |
| CN113576248A (en) * | 2021-08-30 | 2021-11-02 | 珠海格力电器股份有限公司 | Cooking method and device of electric pressure cooker, electric pressure cooker and storage medium |
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