CN101763127B - Control method of pressure cooker - Google Patents
Control method of pressure cooker Download PDFInfo
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- CN101763127B CN101763127B CN2009102634320A CN200910263432A CN101763127B CN 101763127 B CN101763127 B CN 101763127B CN 2009102634320 A CN2009102634320 A CN 2009102634320A CN 200910263432 A CN200910263432 A CN 200910263432A CN 101763127 B CN101763127 B CN 101763127B
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Abstract
The invention relates to a control method of a pressure cooker, which comprises the following steps: A. setting various control parameters through a function keyboard of the pressure cooker; B. testing and recording the initial temperature of the pressure cooker, and starting heating with full power, after a preset time, recording the temperature as the secondary initial temperature; C. according to the control parameters and the temperature difference in the preset time obtained in the step B, predicting the target heating time that the heated object achieves the target heating temperature or target heating pressure; and D. starting from the second initial temperature, measuring the actual temperature of the pressure cooker at regular intervals, and obtaining the corresponding actual pressure and actual time by calculation. The invention has the beneficial effects that: (1) since pressure parameters can be directly calculated through the temperature detected by a temperature sensor, the pressure cooker can be intelligently controlled through temperature parameters, and a pressure sensing device and a corresponding A / D converter can be omitted, thereby effectively reducing cost.
Description
Technical field
The invention belongs to the household electrical cooking device, particularly a kind of control method of pressure cooker.
Background technology
Household electrical appliance, particularly household electrical cooking device, like electric cooker, electric pressure cooker has become indispensable electrical equipment in people's daily life.The robotization of household electrical appliance is important developing direction.Temperature is an important parameter in electric cooking device, people usually with the sensing of temperature as the important transducing signal of control automatically, be gastronomical process control according to one of.In electric pressure cooker, except temperature, the pressure in the pot has become second important control parameter.Pressure in the pressure cooker is not only the same important parameter with temperature in the normal gastronomical process, affects the quality of the cooking, but also is closely related with the safety of cooking, and pressure out of control often is the main cause that accident takes place.As shown in Figure 1; Mainly form at existing pressure cooker by outer pan body 1, inner pan body 2, pot cover 3, O-ring seal 4, pressure easing valve 5, temperature sensor 6, heating controller 7, electric heating body 8, pressure spring 9 and LOAD CELLS 10; The sensing of pressure is mainly accomplished by the pressure sensor device that pressure spring 9 and LOAD CELLS 10 are formed; Its principle is that the inner pan body 2 of pressure cooker links through the outer pan body 1 of pressure spring 9 with pressure cooker, when heating makes the pressure increase in the inner pan body 2; Pressure overcomes the elastic force of rubber ring 9, and inner pan body 2 is moved down.This displacement can become electric signal by LOAD CELLS 10 perception of outer pan body 1 bottom, accomplishes automatic control action by control circuit.Not enough (1) pressure cooker below existing pressure cooker exists is controlled through pressure parameter, in order to obtain the pressure parameter in each control stage, additional pressure sensor device need be set, and the outer pan body structure is complicated, has increased cost.(2) increased corresponding A/D converter.(3) be that a threshold value is controlled by pressure is set,, can cause bigger potential safety hazard just in case obtaining of pressure parameter made a fault.
Summary of the invention
Technical matters to be solved by this invention is the deficiency that must control by means of additional pressure sensor device for the control procedure that overcomes existing pressure cooker; A kind of control method of pressure cooker has been proposed; When dispensing additional pressure sensor device, can also improve the reliability of control procedure.
Technical scheme of the present invention realizes according to following steps: a kind of control method of pressure cooker comprises the steps:
A. the function keyboard through pressure cooker is provided with various control parameters;
B. test and write down the initial temperature of pressure cooker, the beginning heating with full power, after a schedule time, record temperature this moment is as the secondary initial temperature;
C. according to the temperature difference in the schedule time that obtains among controlled variable and the step B, dope the target heat time heating time that heating object reaches target heating-up temperature or target heated pressure;
D. begin from the secondary initial temperature, every actual temperature at a distance from a set time gaging pressure pot, and calculate at this moment corresponding actual pressure and real time;
E. the actual temperature that obtains among the step D, actual pressure or real time and target heating-up temperature, target heated pressure or target are compared heat time heating time; If actual temperature, actual pressure or real time, all less than its corresponding target heating-up temperature, target heated pressure or target heat time heating time, then step D was carried out in circulation; If actual temperature, actual pressure or real time each (or appointing several) then stopped heating pressure cooker are lowered the temperature naturally more than or equal to its corresponding target heating-up temperature, target heated pressure or target heat time heating time;
F. from stopping the heating beginning, whenever at a distance from the actual temperature of a Fixed Time Interval gaging pressure pot, if actual temperature less than the holding temperature first time, then gets into holding stage for the first time, the time of holding stage is preset value for the first time.
G. after the preset time through the holding stage first time; Stop heating, every actual temperature at a distance from a Fixed Time Interval gaging pressure pot is if actual temperature is less than the holding temperature second time; Then get into holding stage for the second time, the time of holding stage is preset value for the second time.
The invention has the beneficial effects as follows: (1) is because the present invention has utilized the temperature of pressure cooker and the funtcional relationship of internal pressure; Can directly extrapolate the pressure parameter through the detected temperature of temperature sensor; Thereby can directly carry out Based Intelligent Control through temperature parameter to pressure cooker; Omit pressure sensor device and corresponding A/D converter, effectively reduced cost.(2) secondly in the Based Intelligent Control process of pressure cooker; Can be through the program of weighing in real time (promptly by temperature rise at given time inner pan body; Extrapolate the quality of heating object) and provide target heat time heating time of the best that reaches the target heating-up temperature, further improved the precise time control of pressure cooker.(3) for the control of heating process, a plurality of threshold values such as target heating-up temperature, target heated pressure, target heating-up temperature can be set simultaneously, further improve the reliability of pressure cooker.
Description of drawings
Fig. 1 is the structure principle chart of traditional electrical heating pressure cooker.
Fig. 2 is the structure principle chart of electrical heating pressure cooker of the present invention.
Fig. 3 is the heat time heating time of electrical heating pressure cooker and the coordinate schematic diagram of heated pressure and heating-up temperature.
Fig. 4 is a control main flow chart of the present invention.
Fig. 5 is the control flow chart of holding stage first time of the present invention.
Fig. 6 is the control flow chart of holding stage second time of the present invention.
Description of reference numerals: outer pan body 1, inner pan body 2, pot cover 3, O-ring seal 4, pressure easing valve 5, temperature sensor 6, heating controller 7, electric heating body 8, pressure spring 9, LOAD CELLS 10, initial temperature T
0, secondary initial temperature T
u, the temperature difference T in the schedule time
d, holding temperature T for the second time
B2, heat preservation pressure P for the second time
B2, holding temperature T for the first time
B1, heat preservation pressure P for the first time
B1, target heating-up temperature T
m, target heated pressure P
m, target t heat time heating time
m
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further detailed description.
Technological improvement of the present invention is mainly based on following theory: (a) the certain mass thing is heated to heat time heating time of uniform temperature in electrically heated process, and the heating temperature difference with the unit interval is directly proportional in the ideal case.Consider various actual influence factors, just like the formula that concerns of (2).
(b) prediction heat time heating time.If the initial temperature of calandria is T
0Heat the temperature that records behind the schedule time u (present embodiment get u=60 second) as secondary initial temperature T
u, the temperature difference that then heats u second does
T
d=T
u-T
0Formula (1)
Then be heated to temperature T
mThe required target temperature time does
Wherein A is radiation and the caused time factor of cross-ventilation in the heating process, and it and concrete environmental correclation are a constant basis.
(c) target temperature time t
mPrediction.
Example one: with the water (27.5 ℃ of environment temperatures) of heating 3.865kg weight; Initial temperature T
0=23.9 ℃; One minute (u=60 second) heated temperatures T
u=28.2 ℃; So temperature difference T is arranged
d=4.3 ℃; By T
u=28.2 ℃ are heated to T
m=97 ℃ (boiling point of area, Chengdu water) is according to (2) required target temperature time t
m=16 minutes (getting A=1.0).Elapsed time t
s=16.5 minutes, so revised A=16.5/16=1.03.
Example two: with the water (23.5 ℃ of environment temperatures) of heating 4.15kg weight; Initial temperature T
0=22.3 ℃; One minute (u=60 second) heated temperatures T
u=26.8 ℃; So temperature difference T is arranged
d=4.5 ℃; By T
u=26.8 ℃ are heated to T
m=97 ℃ (boiling point of area, Chengdu water) is according to (2) required target temperature time t
m=15.6 minutes (getting A=1.0).Elapsed time t
s=17.2 minutes, so revised A=17.2/15.6=1.10.
Through above two instances, proved that further in electrically heated process certain mass thing is heated to the heat time heating time of uniform temperature, the heating temperature difference with the unit interval is directly proportional in the ideal case.
According to ideal gas formula and measured test result; Pressure in the pressure cooker of heating back also has the relation of the temperature of being similar to, and promptly the certain mass thing is heated to heat time heating time of certain pressure in electrically heated process; Poor with the heated pressure of unit interval, be directly proportional in the ideal case.
Suppose the pressure P in the pressure cooker
mWith the shared volume of heating object and the ratio S and the pressure cooker heated temperatures T of air portion partial volume
mBe correlated with, i.e. this pressure P
mBe S and T
mFunction, be designated as P
m=(S, T
m). and P
m=(S, T
m) be to obtain by theoretical derivation or actual measurement.
Further describe P below
mThe theoretical derivation process, with the correct of proof above-mentioned theory and disclose the intrinsic function relation of temperature and pressure in the pressure cooker.
By the associated gas pressure theory, we have following (3)
P wherein
mBe the pressure in the pressure cooker, unit is Pa; T
mBe the temperature of the pressure cooker that records of temperature sensor, unit is absolute temperature K; V is the volume of pressure cooker air part, and unit is m
3N ' is revised population, and (4) are arranged
α (S, T
f) relevant with actual environment, wherein S is the shared volume of heating object and the ratio of air portion partial volume in the pressure cooker, P
0Be an atmospheric pressure, T
0Be taken as 20 ℃+273, unit is absolute temperature K, and k is a Boltzmann constant, by the pressure P in (4)
mTemperature T with pressure cooker
mRelational expression can provide by (5):
If therefore we are known under various S, pressure P
mWith temperature T
mRelation, just can be by the temperature T of pressure cooker
mExtrapolate the pressure P of the pressure cooker corresponding with this temperature
mWe still can extrapolate the pressure P that reaches predetermined by the temperature measurement of unit interval pot body in other words
mNeeded goal pressure time t
PUsually, as shown in Figure 3, the control procedure of pressure cooker of the present invention mainly comprises following several stages: a. heating period, this stage needs goal-selling heating-up temperature T
mWith target heated pressure P
mB. holding stage for the first time, this stage need be preset holding temperature T for the first time
B1With the heat preservation pressure P first time
B1C. holding stage for the second time, this stage need be preset holding temperature T for the second time
B2With the heat preservation pressure P second time
B2
Describe practical implementation process of the present invention in detail below in conjunction with accompanying drawing 4 and specific embodiment: a kind of control method of pressure cooker comprises the steps:
A. the function keyboard through pressure cooker is provided with various control parameters.These controlled variable comprise heat preservation pressure P for the second time
B2, holding temperature T for the first time
B1, heat preservation pressure P for the first time
B1, target heating-up temperature T
m, target heated pressure P
mWith pot body air portion partial volume before the heating be heated food volume ratio S.
B. test and write down the initial temperature T of pressure cooker
0, the beginning heating with full power, after a schedule time, record temperature this moment is as secondary initial temperature T
uIn the present embodiment, the temperature of choosing the preceding pot of heating beginning body is as initial temperature T
0, choose the temperature that begins to heat after 60 seconds as secondary initial temperature T
u
C. prediction reaches target heating-up temperature T according to the temperature difference in the schedule time that obtains among controlled variable and the step B
mTarget heated pressure P
mOr target t heat time heating time
mThe object that can know certain mass by formula (1) is from initial temperature T
0Begin to heat the temperature difference T after 60 seconds
d, can know by formula (2) again to reach target heating-up temperature T
mTarget t heat time heating time
m, obtain target heated pressure P according to (5)
m
D. from secondary initial temperature T
uBeginning, every actual temperature T at a distance from a Fixed Time Interval gaging pressure pot
s, and calculate corresponding actual pressure P this moment
sWith real time t
sIn this step, Fixed Time Interval is set to 10 seconds, and other appropriate time can certainly be set as required.Actual pressure P
sWith actual temperature T
sStill satisfy (5), so can be according to (5) actual temperature T by actual measurement
sObtain actual pressure P
s
E. with the actual temperature T that obtains among the step D
s, actual pressure P
sOr real time t
sWith target heating-up temperature T
m, target heated pressure P
mOr target t heat time heating time
mCompare, if actual temperature T
s, actual pressure P
sOr real time t
sAll less than its corresponding target heating-up temperature T
m, target heated pressure P
mOr target t heat time heating time
m, then step D is carried out in circulation; If actual temperature T
s, actual pressure P
sOr real time t
sEach is more than or equal to its corresponding target heating-up temperature T
m, target heated pressure P
mOr target t heat time heating time
m, then stop heating pressure cooker lowered the temperature naturally;
F. from stopping the heating beginning, every actual temperature T at a distance from a Fixed Time Interval gaging pressure pot
s, if actual temperature T
sLess than the holding temperature T first time
B1, then get into holding stage for the first time, for the first time the time t of holding stage
B1Be preset value.Fixed Time Interval in this step is 2 minutes, and other appropriate time can certainly be set as required.The time t of holding stage for the first time
B1Can in a set time, be provided with arbitrarily as required.
Concrete steps as shown in Figure 5, after beginning to get into the holding stage first time, every actual temperature T at a distance from a Fixed Time Interval (being 2 minutes in the present embodiment) gaging pressure pot
s, if actual temperature T
sMore than or equal to the holding temperature T first time
B1, then stop heating; If actual temperature T
sLess than the holding temperature T first time
B1, begin to calculate temperature retention time t simultaneously
s, continued heating 2 minutes simultaneously and judge temperature retention time t
sTime t with the holding stage first time
B1Magnitude relationship, if t
sMore than or equal to t
B1, then finish holding stage for the first time, otherwise circulation carry out this step.
G. pass through the preset time t of holding stage for the first time
B1After, stop heating, every actual temperature T at a distance from a Fixed Time Interval gaging pressure pot
s, if actual temperature T
sLess than the holding temperature T second time
B2, then get into holding stage for the second time, for the second time the time t of holding stage
B2Be preset value.Fixed Time Interval in this step is 2 minutes, and other appropriate time can certainly be set as required.The time t of holding stage for the second time
B2Can be set to a set time or unlimited time as required arbitrarily, the time t of holding stage for the second time in this step
B2Be preset as the unlimited time.
Concrete steps as shown in Figure 6, after beginning to get into the holding stage second time, every actual temperature T at a distance from a Fixed Time Interval (being 2 minutes in the present embodiment) gaging pressure pot
s, if actual temperature T
sMore than or equal to the holding temperature T second time
B2, then stop heating; If actual temperature T
sLess than the holding temperature T second time
B2, continuing heating 2 minutes, circulation always carry out this step.
As shown in Figure 2, be the structure principle chart of using after the control method of the present invention electrical heating pressure cooker that can simplified structure.Mainly by outer pan body 1, inner pan body 2, pot cover 3, O-ring seal 4, pressure easing valve 5, temperature sensor 6, heating controller 7, electric heating body 8.This shows that this pressure cooker has omitted weighing device, its control procedure depends on detected temperature parameters, and obtaining of pressure parameter can obtain through the function between the temperature and pressure.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood that the protection domain of inventing is not limited to such special statement and embodiment.Every making according to foregoing description variously possible be equal to replacement or change, and all is considered to belong to the protection domain of claim of the present invention.
Claims (1)
1. the control method of a pressure cooker is characterized in that, comprises the steps:
A. the function keyboard through pressure cooker is provided with various control parameters;
B. test and write down the initial temperature of pressure cooker, the beginning heating with full power, after a schedule time, record temperature this moment is as the secondary initial temperature;
C. according to the temperature difference in the schedule time that obtains among controlled variable and the step B, dope the target heat time heating time that heating object reaches target heating-up temperature or target heated pressure;
D. begin from the secondary initial temperature, every actual temperature at a distance from a set time gaging pressure pot, and calculate at this moment corresponding actual pressure and real time;
E. the actual temperature that obtains among the step D, actual pressure or real time and target heating-up temperature, target heated pressure or target are compared heat time heating time; If actual temperature, actual pressure or real time, all less than its corresponding target heating-up temperature, target heated pressure or target heat time heating time, then step D was carried out in circulation; If actual temperature, actual pressure or real time each more than or equal to its corresponding target heating-up temperature, target heated pressure or target heat time heating time, then stop heating pressure cooker lowered the temperature naturally;
F. from stopping the heating beginning, whenever at a distance from the actual temperature of a Fixed Time Interval gaging pressure pot, if actual temperature less than the holding temperature first time, then gets into holding stage for the first time, the time of holding stage is preset value for the first time;
G. after the preset time through the holding stage first time; Stop heating, every actual temperature at a distance from a Fixed Time Interval gaging pressure pot is if actual temperature is less than the holding temperature second time; Then get into holding stage for the second time, the time of holding stage is preset value for the second time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102634320A CN101763127B (en) | 2009-12-16 | 2009-12-16 | Control method of pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102634320A CN101763127B (en) | 2009-12-16 | 2009-12-16 | Control method of pressure cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101763127A CN101763127A (en) | 2010-06-30 |
| CN101763127B true CN101763127B (en) | 2012-07-04 |
Family
ID=42494331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102634320A Expired - Fee Related CN101763127B (en) | 2009-12-16 | 2009-12-16 | Control method of pressure cooker |
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| Country | Link |
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| CN (1) | CN101763127B (en) |
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| CN102687985B (en) * | 2011-03-23 | 2014-08-27 | 珠海格力电器股份有限公司 | Electric cooker and heat preservation method thereof |
| CN104345752A (en) * | 2013-08-06 | 2015-02-11 | 美的集团股份有限公司 | Electric rice cooker and control method and heat insulation control device thereof |
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| CN106843312B (en) * | 2016-12-15 | 2019-09-03 | 珠海格力电器股份有限公司 | A kind of temprature control method and device |
| CN108508931B (en) * | 2017-02-27 | 2021-03-05 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle heat preservation control method and electric kettle |
| CN108784322B (en) * | 2017-05-04 | 2020-11-27 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device |
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| CN109846344B (en) * | 2017-11-30 | 2021-10-15 | 佛山市顺德区美的电热电器制造有限公司 | Pressure control method and device and computer readable storage medium |
| CN108402890A (en) * | 2018-01-10 | 2018-08-17 | 浙江苏泊尔家电制造有限公司 | Cooking control method for cooking apparatus |
| EP3561381B1 (en) * | 2018-04-25 | 2022-08-31 | Bleckmann GmbH & Co. KG | Method for controlling a heating system component for a simple and safe operation and a heating system component therefor |
| CN111096650B (en) * | 2018-10-26 | 2022-01-28 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method, cooking control device, cooking appliance and computer readable storage medium |
| CN109363528B (en) * | 2018-11-22 | 2021-05-04 | 厦门芯阳科技股份有限公司 | Control method of baking tray of smokeless machine and baking tray |
| CN113116135A (en) * | 2019-12-31 | 2021-07-16 | 浙江绍兴苏泊尔生活电器有限公司 | Air leakage detection method, cooking utensil, storage medium and processor |
| EP3984424A1 (en) * | 2020-10-16 | 2022-04-20 | Vorwerk & Co. Interholding GmbH | System with kitchen appliance and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839503A (en) * | 1986-12-10 | 1989-06-13 | Fissler Gmbh | Controlling the simmering or cooking time in a cooking vessel |
| CN1470965A (en) * | 2002-10-13 | 2004-01-28 | 广州威纳电子科技有限公司 | Computerized controller for electric pressure cooker |
| ES2187372B1 (en) * | 2001-10-16 | 2004-09-16 | Fagor, S. Coop. | METHOD FOR COOKING CONTROL IN A PRESSURE COOKER. |
| CN201320079Y (en) * | 2008-11-28 | 2009-10-07 | 佛山市顺德区瑞德电子实业有限公司 | Control device for temperature controlled pressure cooker |
| CN102018442A (en) * | 2009-09-16 | 2011-04-20 | 方展崇 | Method for cooking through high-temperature impact of electric pressure cooker |
-
2009
- 2009-12-16 CN CN2009102634320A patent/CN101763127B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839503A (en) * | 1986-12-10 | 1989-06-13 | Fissler Gmbh | Controlling the simmering or cooking time in a cooking vessel |
| ES2187372B1 (en) * | 2001-10-16 | 2004-09-16 | Fagor, S. Coop. | METHOD FOR COOKING CONTROL IN A PRESSURE COOKER. |
| CN1470965A (en) * | 2002-10-13 | 2004-01-28 | 广州威纳电子科技有限公司 | Computerized controller for electric pressure cooker |
| CN201320079Y (en) * | 2008-11-28 | 2009-10-07 | 佛山市顺德区瑞德电子实业有限公司 | Control device for temperature controlled pressure cooker |
| CN102018442A (en) * | 2009-09-16 | 2011-04-20 | 方展崇 | Method for cooking through high-temperature impact of electric pressure cooker |
Non-Patent Citations (1)
| Title |
|---|
| 张雷.新型可调温控压的电压力锅的研制.《新余高专学报》.2008,第13卷(第3期),84-85. * |
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|---|---|
| CN101763127A (en) | 2010-06-30 |
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