CN108272338B - Pressure cooking appliance and pressure detection method and device thereof - Google Patents
Pressure cooking appliance and pressure detection method and device thereof Download PDFInfo
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- CN108272338B CN108272338B CN201710008404.9A CN201710008404A CN108272338B CN 108272338 B CN108272338 B CN 108272338B CN 201710008404 A CN201710008404 A CN 201710008404A CN 108272338 B CN108272338 B CN 108272338B
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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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- 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
- A47J2201/00—Devices having a modular construction
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Abstract
The invention discloses a pressure cooking appliance and a pressure detection method and a pressure detection device thereof, wherein the method comprises the following steps: detecting the bottom temperature of the pressure cooking appliance; judging whether the bottom temperature is greater than a preset temperature threshold value or not; if the bottom temperature is greater than a preset temperature threshold value, detecting the temperature of an upper cover of the pressure cooking appliance; and acquiring the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature, and acquiring the pressure value in the pressure cooking appliance according to the saturated steam temperature and a preset relation table of the saturated steam temperature and the absolute pressure. According to the method, the pressure in the pressure cooking utensil can be conveniently and accurately detected.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a pressure detection method of a pressure cooking appliance, a pressure detection device of the pressure cooking appliance and the pressure cooking appliance.
Background
Pressure cooking utensil with pressure function of cooking, at the in-process of culinary art, use pressure can let the rice of cooking be heated more evenly, and the rice taste of cooking is more delicious. However, in the process of cooking under controlled pressure, the pressure in the pressure cooking utensil must be known to be accurate. If the pressure sensor is arranged in the hardware of the pressure cooking appliance, the pressure in the pressure cooking appliance can be directly tested. However, if the pressure cooking appliance does not have a pressure sensor in its hardware, it is difficult to accurately detect the pressure inside the pressure cooking appliance.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a pressure detecting method for a pressure cooking appliance, which can conveniently and accurately detect the pressure in the pressure cooking appliance.
A second object of the present invention is to provide a pressure detecting device for a pressure cooking appliance.
A third object of the present invention is to propose a pressure cooking appliance.
In order to achieve the above object, a first embodiment of the present invention provides a pressure detecting method for a pressure cooking appliance, including the following steps: detecting a bottom temperature of the pressure cooking appliance; judging whether the bottom temperature is greater than a preset temperature threshold value or not; if the bottom temperature is greater than the preset temperature threshold, detecting the upper cover temperature of the pressure cooking appliance; and acquiring the temperature of saturated steam in the pressure cooking appliance according to the temperature of the upper cover, and acquiring the pressure value in the pressure cooking appliance according to the temperature of the saturated steam and a preset relation table of the temperature of the saturated steam and the absolute pressure.
According to the pressure detection method of the pressure cooking appliance, the bottom temperature of the pressure cooking appliance is detected, the upper cover temperature of the pressure cooking appliance is further detected when the bottom temperature is larger than the preset temperature threshold value, then the saturated steam temperature in the pressure cooking appliance is obtained according to the upper cover temperature, and the pressure value in the pressure cooking appliance is obtained according to the saturated steam temperature and the preset relation table of the saturated steam temperature and the absolute pressure, so that the pressure in the pressure cooking appliance can be conveniently and accurately detected.
In addition, the pressure detection method of the pressure cooking appliance proposed according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, when the pressure cooking appliance includes an upper cover heating device, the acquiring a saturated steam temperature in the pressure cooking appliance according to the upper cover temperature includes: calculating the effective total electric power of the upper cover heating device when the upper cover heating device is started; temperature compensating the upper cover temperature based on the effective total power to obtain the saturated steam temperature.
Further, the temperature compensating the upper cover temperature based on the effective total power to obtain the saturated steam temperature includes: judging whether the effective total electrician is greater than or equal to a first preset electric work and less than or equal to a second preset electrician, wherein the second preset electric work is greater than the first preset electric work; if the effective total electrical power is less than the first preset electrical power, the saturated steam temperature is equal to the upper cover temperature; if the effective total electrical power is greater than or equal to the first preset electrical power and less than or equal to the second preset electrical power, the saturated steam temperature is equal to the upper cover temperature minus a first preset temperature difference; if the effective total electrical work is larger than the second preset electrical work, the saturated steam temperature is equal to the temperature of the upper cover minus a second preset temperature difference value, wherein the second preset temperature difference value is larger than the first preset temperature difference value.
Further, the first preset power is 1800 plus 3600J, and the second preset power is greater than 3600J.
According to one embodiment of the invention, said preset temperature threshold is 85-95 ℃.
In order to achieve the above object, a second embodiment of the present invention provides a pressure detecting device for a pressure cooking appliance, the device comprising: a bottom temperature detection module for detecting a bottom temperature of the pressure cooking appliance; the judging module is used for judging whether the bottom temperature is greater than a preset temperature threshold value or not; the upper cover temperature detection module is used for detecting the upper cover temperature of the pressure cooking appliance when the bottom temperature is greater than the preset temperature threshold; and the acquisition module is used for acquiring the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature and acquiring the pressure value in the pressure cooking appliance according to the saturated steam temperature and a preset relation table of the saturated steam temperature and the absolute pressure.
According to the pressure detection device of the pressure cooking appliance, the bottom temperature of the pressure cooking appliance is detected through the bottom temperature detection module, the upper cover temperature of the pressure cooking appliance is further detected through the upper cover temperature detection module when the bottom temperature is larger than the preset temperature threshold, then the acquisition module acquires the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature, and acquires the pressure value in the pressure cooking appliance according to the saturated steam temperature and the preset relation table of the saturated steam temperature and the absolute pressure, and therefore the pressure in the pressure cooking appliance can be conveniently and accurately detected.
In addition, the pressure detecting device of the pressure cooking appliance according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, when the pressure cooking appliance includes an upper cover heating device, the obtaining module includes: the calculating unit is used for calculating the effective total electric power of the upper cover heating device when the upper cover heating device is started; a compensation unit that temperature-compensates the upper cover temperature based on the effective total power to obtain the saturated steam temperature.
Further, the compensation unit is configured to determine whether the effective total electrical power is greater than or equal to a first preset electrical power and less than or equal to a second preset electrical power, where the second preset electrical power is greater than the first preset electrical power, and when the effective total electrical power is less than the first preset electrical power, the saturated steam temperature is equal to the upper cover temperature; when the effective total electrical power is greater than or equal to the first preset electrical power and less than or equal to the second preset electrical power, the saturated steam temperature is equal to the upper cover temperature minus a first preset temperature difference; when the effective total electrical power is larger than the second preset electrical power, the saturated steam temperature is equal to the temperature of the upper cover minus a second preset temperature difference value, wherein the second preset temperature difference value is larger than the first preset temperature difference value.
Further, the first preset power is 1800 plus 3600J, and the second preset power is greater than 3600J.
According to one embodiment of the invention, said preset temperature threshold is 85-95 ℃.
In order to achieve the above object, a pressure cooking appliance is provided in an embodiment of a third aspect of the present invention, which includes the pressure detecting device of the pressure cooking appliance provided in the embodiment of the second aspect of the present invention.
According to the pressure cooking appliance provided by the embodiment of the invention, the pressure can be conveniently and accurately detected.
Drawings
Fig. 1 is a flowchart of a pressure detection method of a pressure cooking appliance according to an embodiment of the present invention;
FIG. 2 is a table of predetermined saturated steam temperatures versus absolute pressures in accordance with one embodiment of the present invention;
fig. 3 is a flowchart of a pressure detection method of a pressure cooking appliance according to an embodiment of the present invention;
fig. 4 is a flowchart of a pressure detection method of a pressure cooking appliance according to another embodiment of the present invention;
FIG. 5 is a flow chart of a method of temperature compensating the temperature of the upper cover according to one embodiment of the present invention;
fig. 6 is a block diagram schematically illustrating a pressure detecting apparatus of a pressure cooking appliance according to an embodiment of the present invention;
fig. 7 is a block schematic view of a pressure cooking appliance according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A pressure cooking appliance, a pressure detection method and a pressure detection device thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart of a pressure detection method of a pressure cooking appliance according to an embodiment of the present invention.
As shown in fig. 1, the pressure detection method of the pressure cooking appliance according to the embodiment of the present invention includes the following steps:
and S1, detecting the bottom temperature of the pressure cooking utensil.
And S2, judging whether the bottom temperature is greater than a preset temperature threshold value.
And S3, if the bottom temperature is larger than the preset temperature threshold value, detecting the upper cover temperature of the pressure cooking appliance.
In one embodiment of the present invention, the bottom temperature and the upper cover temperature of the pressure cooking appliance may be detected by temperature sensors located at the bottom and the upper cover, respectively.
In an embodiment of the present invention, if the bottom temperature is not greater than the preset temperature threshold, the detection of the upper cover temperature is not performed. Wherein the preset temperature threshold value can be 85-95 ℃, and is preferably 90 ℃.
And S4, acquiring the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature, and acquiring the pressure value in the pressure cooking appliance according to the saturated steam temperature and a preset relation table of the saturated steam temperature and the absolute pressure.
The preset relation table of the saturated steam temperature and the absolute pressure can be as shown in fig. 2, and after the saturated steam temperature is obtained, the absolute pressure in the pressure cooking appliance can be conveniently obtained according to the relation table.
According to the pressure detection method of the pressure cooking appliance, the bottom temperature of the pressure cooking appliance is detected, the upper cover temperature of the pressure cooking appliance is further detected when the bottom temperature is larger than the preset temperature threshold value, then the saturated steam temperature in the pressure cooking appliance is obtained according to the upper cover temperature, and the pressure value in the pressure cooking appliance is obtained according to the saturated steam temperature and the preset relation table of the saturated steam temperature and the absolute pressure, so that the pressure in the pressure cooking appliance can be conveniently and accurately detected.
In one embodiment of the present invention, the pressure cooking appliance may include a lid heating device. The pressure cooking appliance can perform main heating through the bottom heating device, namely the bottom heating device is a main source for generating saturated steam, and the pressure cooking appliance can perform auxiliary heating through the upper cover heating device.
In an embodiment of the present invention, when the pressure cooking appliance does not include the upper cover heating device or the upper cover device is not opened, the upper cover temperature may more accurately reflect the saturated steam temperature, so that the detected upper cover temperature may be used as the saturated steam temperature.
When the upper cover heating device is started, the accuracy of upper cover temperature detection can be influenced. Therefore, in another embodiment of the present invention, when the upper cover heating apparatus is turned on, the effective total power of the upper cover heating apparatus may be calculated, and the temperature of the upper cover is temperature-compensated based on the effective total power to obtain the saturated steam temperature.
Specifically, it can be determined whether the effective total electrician is greater than or equal to a first preset electrical work and less than or equal to a second preset electrician, wherein the second preset electrical work is greater than the first preset electrical work. If the effective total electrician is less than the first preset electric work, the temperature of the saturated steam is equal to the temperature of the upper cover; if the effective total electrician is greater than or equal to the first preset electric work and less than or equal to the second preset electrician, the saturated steam temperature is equal to the temperature of the upper cover minus a first preset temperature difference; if the effective total electrical work is larger than the second preset electrical work, the saturated steam temperature is equal to the temperature of the upper cover minus a second preset temperature difference value, wherein the second preset temperature difference value is larger than the first preset temperature difference value.
Therefore, when the upper cover heating device is opened, the detected upper cover temperature can be compensated through the upper cover heating device, so that the more accurate saturated steam temperature can be obtained, and the accuracy of pressure detection of the pressure cooking appliance can be further improved.
In an embodiment of the present invention, as shown in fig. 3, the pressure detection method of the pressure cooking appliance may include the steps of:
s301, detecting the bottom temperature T1 of the pressure cooking appliance.
S302, judging whether T1 is more than 90 ℃. If yes, executing step S303; if not, return to step S301.
S303, the upper lid temperature T2 of the pressure cooking appliance is detected.
And S304, inquiring a preset relation table of saturated steam temperature and absolute pressure according to T2. A table lookup was performed for T2, i.e., T2 was taken as the saturated steam temperature.
S305, obtaining a pressure value.
In another embodiment of the present invention, as shown in fig. 4, the pressure detecting method of the pressure cooking appliance may include the steps of:
s401, detecting the bottom temperature T1 of the pressure cooking utensil.
S402, judging whether T1 is more than 90 ℃. If so, go to step S403; if not, return to step S401.
And S403, detecting the upper cover temperature T2 of the pressure cooking utensil.
And S404, carrying out temperature compensation on the upper cover temperature to obtain T3.
And S405, inquiring a preset relation table of saturated steam temperature and absolute pressure according to T3. A table lookup was performed for T23, i.e., T3 was taken as the saturated steam temperature.
S406, obtaining a pressure value.
As shown in fig. 5, step S404 may specifically include the following steps:
and S501, calculating the effective total electric power P of the upper cover heating device. And P is W t, wherein W is the heating power of the upper cover heating device, and t is the heating time.
S502, whether P is greater than or equal to P1 is judged. The first preset power P1 can be 1800 + 3600J. If yes, go to step S503; if not, step S504 is performed.
S503, judge whether P is greater than P2. The second preset electrical function P2 may be greater than 3600J. If not, executing step S505; if so, step S506 is performed.
At S504, the compensated T3 equals T2.
S505, the compensated T3 is equal to T2-1.
S506, the T3 obtained by compensation is equal to T2-2.
In order to realize the pressure detection method of the pressure cooking appliance in the embodiment, the invention further provides a pressure detection device of the pressure cooking appliance.
As shown in fig. 6, the pressure detecting device of the pressure cooking appliance according to the embodiment of the present invention includes: the device comprises a bottom temperature detection module 10, a judgment module 20, an upper cover temperature detection module 30 and an acquisition module 40.
The bottom temperature detection module 10 is used for detecting the bottom temperature of the pressure cooking appliance; the judging module 20 is configured to judge whether the bottom temperature is greater than a preset temperature threshold; the upper cover temperature detection module 30 is used for detecting the upper cover temperature of the pressure cooking appliance when the bottom temperature is greater than a preset temperature threshold; the obtaining module 40 is configured to obtain a saturated steam temperature in the pressure cooking appliance according to the upper cover temperature, and obtain a pressure value in the pressure cooking appliance according to the saturated steam temperature and a preset saturated steam temperature and absolute pressure relation table.
In one embodiment of the present invention, the bottom temperature detecting module 10 and the upper cover temperature detecting module 30 may be temperature sensors located at the bottom and the upper cover of the pressure cooking appliance, respectively.
In the embodiment of the present invention, if the bottom temperature is not greater than the preset temperature threshold, the upper cover temperature detection module 30 does not perform the detection of the upper cover temperature. Wherein the preset temperature threshold value can be 85-95 ℃, and is preferably 90 ℃.
The preset relation table of the saturated steam temperature and the absolute pressure can be as shown in fig. 2, and after the saturated steam temperature is obtained, the absolute pressure in the pressure cooking appliance can be conveniently obtained according to the relation table. Wherein, the table shows only the relation when the saturated steam temperature is 100 to 132 ℃, which is considered based on the pressure of the micro-pressure rice cooker is generally controlled within 1.5 atmospheric pressure. It should be understood that the correspondence in the relationship table may also vary depending on the specific application instance.
According to the pressure detection device of the pressure cooking appliance, the bottom temperature of the pressure cooking appliance is detected through the bottom temperature detection module, the upper cover temperature of the pressure cooking appliance is further detected through the upper cover temperature detection module when the bottom temperature is larger than the preset temperature threshold, then the acquisition module acquires the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature, and acquires the pressure value in the pressure cooking appliance according to the saturated steam temperature and the preset relation table of the saturated steam temperature and the absolute pressure, and therefore the pressure in the pressure cooking appliance can be conveniently and accurately detected.
In one embodiment of the present invention, the pressure cooking appliance may include a lid heating device. The pressure cooking appliance can perform main heating through the bottom heating device, namely the bottom heating device is a main source for generating saturated steam, and the pressure cooking appliance can perform auxiliary heating through the upper cover heating device.
In an embodiment of the present invention, when the pressure cooking appliance does not include the upper cover heating device or the upper cover device is not opened, the upper cover temperature may more accurately reflect the saturated steam temperature, so that the detected upper cover temperature may be used as the saturated steam temperature.
When the upper cover heating device is started, the accuracy of upper cover temperature detection can be influenced. Therefore, in another embodiment of the present invention, the obtaining module 40 may include a calculating unit and a compensating unit, wherein the calculating unit may be configured to calculate an effective total power of the upper cover heating device when the upper cover heating device is turned on, and the compensating unit may perform temperature compensation on the upper cover temperature based on the effective total power to obtain the saturated steam temperature.
Specifically, the compensation unit can determine whether the effective total electrician is greater than or equal to a first preset electric work and less than or equal to a second preset electrician, wherein the second preset electric work is greater than the first preset electric work. In an embodiment of the invention, the first predetermined power may be 1800 plus 3600J, and the second predetermined power may be greater than 3600J. When the effective total electrical work is less than the first preset electrical work, the temperature of the saturated steam is equal to the temperature of the upper cover; when the effective total electrical work is greater than or equal to the first preset electrical work and less than or equal to the second preset electrical work, the saturated steam temperature is equal to the temperature of the upper cover minus a first preset temperature difference; when the effective total electrical power is larger than the second preset electrical power, the saturated steam temperature is equal to the temperature of the upper cover minus a second preset temperature difference value, wherein the second preset temperature difference value is larger than the first preset temperature difference value.
Therefore, when the upper cover heating device is opened, the detected upper cover temperature can be compensated through the upper cover heating device, so that the more accurate saturated steam temperature can be obtained, and the accuracy of pressure detection of the pressure cooking appliance can be further improved.
The invention further provides a pressure cooking appliance corresponding to the embodiment.
The pressure cooking appliance provided by the embodiment of the invention comprises the pressure detection device of the pressure cooking appliance provided by the embodiment of the invention.
As shown in fig. 7, the pressure cooking appliance of the embodiment of the present invention may include an apparatus control unit, a bottom heating device, an upper cover heating device, a pressure control device, and a pressure detecting device. The equipment control unit can have the functions of operation display, heating, communication, power supply, detection, control and the like, and the pressure control device can be used for controlling pressure rise and pressure relief and maintaining a pressure maintaining set value.
For a more specific implementation of the pressure cooking appliance according to the embodiment of the present invention, reference may be made to the above description of the pressure detecting device, and details are not repeated herein in order to avoid redundancy.
According to the pressure cooking appliance provided by the embodiment of the invention, the pressure can be conveniently and accurately detected.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A pressure detection method of a pressure cooking appliance is characterized by comprising the following steps:
detecting a bottom temperature of the pressure cooking appliance;
judging whether the bottom temperature is greater than a preset temperature threshold value or not;
if the bottom temperature is greater than the preset temperature threshold, detecting the upper cover temperature of the pressure cooking appliance;
and acquiring the temperature of saturated steam in the pressure cooking appliance according to the temperature of the upper cover, and acquiring the pressure value in the pressure cooking appliance according to the temperature of the saturated steam and a preset relation table of the temperature of the saturated steam and the absolute pressure.
2. The pressure detecting method of a pressure cooking appliance according to claim 1, wherein when the pressure cooking appliance includes an upper cover heating device, the acquiring a saturated steam temperature inside the pressure cooking appliance according to the upper cover temperature includes:
calculating the effective total electric power of the upper cover heating device when the upper cover heating device is started;
temperature compensating the upper cover temperature based on the effective total power to obtain the saturated steam temperature.
3. The pressure detecting method of a pressure cooking appliance according to claim 2, wherein the temperature compensating the upper cover temperature based on the effective total electric power to obtain the saturated steam temperature includes:
judging whether the effective total electric work is greater than or equal to a first preset electric work and less than or equal to a second preset electric work, wherein the second preset electric work is greater than the first preset electric work;
if the effective total power is less than the first preset power, the saturated steam temperature is equal to the upper cover temperature;
if the effective total power is greater than or equal to the first preset power and less than or equal to the second preset power, the saturated steam temperature is equal to the temperature of the upper cover minus a first preset temperature difference;
if the effective total power is greater than the second preset power, the saturated steam temperature is equal to the temperature of the upper cover minus a second preset temperature difference value, wherein the second preset temperature difference value is greater than the first preset temperature difference value.
4. The method as claimed in claim 3, wherein the first predetermined power is 1800-3600J and the second predetermined power is greater than 3600J.
5. The pressure detecting method of a pressure cooking appliance according to claim 1, wherein the preset temperature threshold is 85-95 ℃.
6. A pressure detecting device of a pressure cooking appliance, comprising:
a bottom temperature detection module for detecting a bottom temperature of the pressure cooking appliance;
the judging module is used for judging whether the bottom temperature is greater than a preset temperature threshold value or not;
the upper cover temperature detection module is used for detecting the upper cover temperature of the pressure cooking appliance when the bottom temperature is greater than the preset temperature threshold;
and the acquisition module is used for acquiring the saturated steam temperature in the pressure cooking appliance according to the upper cover temperature and acquiring the pressure value in the pressure cooking appliance according to the saturated steam temperature and a preset relation table of the saturated steam temperature and the absolute pressure.
7. The pressure detecting device of the pressure cooking appliance according to claim 6, wherein when the pressure cooking appliance includes an upper cover heating device, the obtaining module includes:
the calculating unit is used for calculating the effective total electric power of the upper cover heating device when the upper cover heating device is started;
a compensation unit that temperature-compensates the upper cover temperature based on the effective total power to obtain the saturated steam temperature.
8. The pressure detecting device of a pressure cooking appliance according to claim 7, wherein the compensating unit is configured to determine whether the effective total power is greater than or equal to a first preset power and less than or equal to a second preset power, wherein the second preset power is greater than the first preset power,
when the effective total power is less than the first preset power, the saturated steam temperature is equal to the upper cover temperature;
when the effective total power is greater than or equal to the first preset power and less than or equal to the second preset power, the saturated steam temperature is equal to the temperature of the upper cover minus a first preset temperature difference;
when the effective total power is larger than the second preset power, the saturated steam temperature is equal to the temperature of the upper cover minus the second preset temperature difference, wherein the second preset temperature difference is larger than the first preset temperature difference.
9. The pressure detecting device of claim 8, wherein the first predetermined electrical function is 1800-3600J, and the second predetermined electrical function is greater than 3600J.
10. Pressure detection device of a pressure cooking appliance according to claim 6, characterized in that said preset temperature threshold is 85-95 ℃.
11. Pressure cooking appliance, characterized in that it comprises a pressure detection device of a pressure cooking appliance according to any one of claims 6-10.
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| CN201710008404.9A CN108272338B (en) | 2017-01-05 | 2017-01-05 | Pressure cooking appliance and pressure detection method and device thereof |
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| USD914436S1 (en) | 2018-06-19 | 2021-03-30 | Sharkninja Operating Llc | Air diffuser with food preparation pot |
| USD903413S1 (en) | 2018-08-09 | 2020-12-01 | Sharkninja Operating Llc | Cooking basket |
| USD934027S1 (en) | 2018-08-09 | 2021-10-26 | Sharkninja Operating Llc | Reversible cooking rack |
| USD883014S1 (en) | 2018-08-09 | 2020-05-05 | Sharkninja Operating Llc | Food preparation device |
| USD883015S1 (en) | 2018-08-09 | 2020-05-05 | Sharkninja Operating Llc | Food preparation device and parts thereof |
| CN110859517B (en) * | 2018-08-27 | 2021-08-20 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance control method and device and cooking appliance |
| CN110876560B (en) * | 2018-09-05 | 2022-05-27 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance control method and device and cooking appliance |
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| CN111103821B (en) * | 2018-10-26 | 2023-03-14 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method and device, cooking appliance and computer readable storage medium |
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| CN105935244A (en) * | 2016-05-26 | 2016-09-14 | 珠海格力电器股份有限公司 | Pressure control method and apparatus of electric pressure cooker, and electric pressure cooker |
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