CN102525284A - Control method of rice cooking by adopting electric rice cooker with stainless-steel inner container - Google Patents
Control method of rice cooking by adopting electric rice cooker with stainless-steel inner container Download PDFInfo
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- CN102525284A CN102525284A CN2012100435150A CN201210043515A CN102525284A CN 102525284 A CN102525284 A CN 102525284A CN 2012100435150 A CN2012100435150 A CN 2012100435150A CN 201210043515 A CN201210043515 A CN 201210043515A CN 102525284 A CN102525284 A CN 102525284A
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Abstract
The invention discloses a control method of rice cooking by adopting an electric rice cooker with a stainless-steel inner container, for reducing the cost of a stainless-steel electric rice cooker and cooking rice very well. The control method comprises the following steps: a microprocessor selects time required by rise range of temperature of the bottom of the stainless-steel inner container, calculates the temperature-rise speed, and divides the heating time into heating time sections at 5-20 gears; when the heating time is reached, the heating stops for a period of time; when the temperature falls to a second temperature point, heating is continuously carried out, the time-interval heating mode is adopted; and after the temperature reaches a third temperature point, the rice cooking process is finished. Compared with the prior art, the control method has the advantages that microprocessor is adopted for realizing control in stages, so that rice in the rice cooker can not be burnt or undercooked when the stainless-steel inner container is heated, the stainless-steel inner container can be accurately controlled, the methods for the electric rice cooker to control different inner containers are increased, and the control accuracy is improved.
Description
Technical field
The present invention relates to a kind of control method of electric cooker cooking rice, particularly a kind of control method of stainless-steel pan inner bag electric cooker cooking rice.
Background technology
Electric cooker has brought convenience for people's life, and the method for prior art control electric cooker cooking rice adopts the temperature sensor that is installed in the middle circular hole of heat-generating disc; Like magnet steel thermostat or negative temperature coefficient NTC thermistor, a fixing temperature value is set, on control circuit as 140 ℃; When temperature sensor senses arrives more than or equal to this temperature value; After control circuit cuts off heating power supply, get into keeping warm mode, this control method is applicable to the aluminum pot inner bag.Stainless steel chemistry good stability; Use the people of stainless-steel pan more and more; Because stainless heat transfer rate and aluminum are inequality; Cooking with stainless steel inner container is not that the rice with in the pot burns, and boils not yet done rice exactly, the inapplicable stainless-steel pan inner bag of the control method of prior art electric cooker cooking rice.For this reason, have the people at the bottom of stainless-steel pan, to increase a combined bottom, with uniformly transfer heat, but this causes the cost of stainless steel electric cooker to rise significantly, has increased the expense of using electric cooker.
Summary of the invention
The control method that the purpose of this invention is to provide a kind of stainless-steel pan courage electric cooker cooking rice, the technical problem that solve are to reduce the cost of stainless steel electric cooker, cooked rice.
For addressing the above problem; The present invention has adopted following technical scheme: a kind of control method of stainless-steel pan courage electric cooker cooking rice; May further comprise the steps: one, begin to cook; Microprocessor sends the heating order to the heat-generating disc power supply of electric cooker, and heat-generating disc heats the stainless-steel pan inner bag, and temperature sensor is monitored the temperature value in the stainless-steel pan inner bag the bottom of a pan in real time; Two, microprocessor is chosen the required time of intensification scope of stainless-steel pan inner bag cooking bottom temperature, calculates programming rate, according to programming rate, will be divided into section heat time heating time of 5-20 gear heat time heating time, then stops heat time heating time heating a period of time; When three, stainless-steel pan inner bag cooking bottom temperature was reduced to second temperature spot, microprocessor sent to heat-generating disc and continues the heating order, and the heat-generating disc power supply receives heating order back the stainless-steel pan inner bag is continued heating, and mode of heating is heating blanking time; When four, stainless-steel pan inner bag cooking bottom temperature arrived the 3rd temperature spot, microprocessor sent to the heat-generating disc power supply and stops the heating order, and heat-generating disc stops to heat the stainless-steel pan inner bag, and cooking rice finishes; Temperature when heat time heating time, section finished that said first temperature spot is the 5-20 gear, the temperature of said second temperature spot is not more than 100 ℃ near 100 ℃, and the temperature of the 3rd temperature spot is lower than the temperature of first temperature spot and greater than 100 ℃; The diameter of said heat-generating disc is not less than the external diameter of stainless-steel pan inner bag.
Method of the present invention will be divided into the time period of 10 gears heat time heating time according to the heating-up time.
Method microprocessor of the present invention is warming up to 95 ℃ of elapsed times according to the stainless-steel pan inner bag the bottom of a pan from 81 ℃, calculates programming rate.
Method of the present invention then stops to heat a period of time for stopping to heat 3 minutes heat time heating time.
Method of the present invention is heated to be the heat-generating disc 15 second time of energising blanking time, and the mode of 5 second time of outage circulates.
Method electric cooker of the present invention cover or a pot courage upper side is equipped with second temperature sensor, microprocessor picks up counting for 100 ℃ from stainless-steel pan inner bag upper temp, then stops heating heat time heating time by the gear of correspondence.
Method of the present invention is warming up to 95 ℃ of elapsed times from 81 ℃: A is≤60 seconds, and be 170 seconds heat time heating time; B is 60＜B≤120 second, and be 200 seconds heat time heating time; C is 120＜C≤140 second, and be 210 seconds heat time heating time; D is 140＜D≤160 second, and be 220 seconds heat time heating time; E is 160＜E≤180 second, and be 230 seconds heat time heating time; F is 180＜F≤195 second, and be 240 seconds heat time heating time; G is 195＜G≤210 second, and be 250 seconds heat time heating time; H is 210＜H≤225 second, and be 260 seconds heat time heating time; I is 225＜I≤240 second, and be 270 seconds heat time heating time; J is＞240 seconds, and be 280 seconds heat time heating time.
Method microprocessor of the present invention picks up counting for 95 ℃ from stainless-steel pan inner bag cooking bottom temperature, then stops heating heat time heating time by the gear of correspondence.
Method of the present invention is warming up to 95 ℃ of elapsed times from 81 ℃: A is≤60 seconds, and be 180 seconds heat time heating time; B is 60＜B≤120 second, and be 250 seconds heat time heating time; C is 120＜C≤140 second, and be 280 seconds heat time heating time; D is 140＜D≤160 second, and be 300 seconds heat time heating time; E is 160＜E≤180 second, and be 320 seconds heat time heating time; F is 180＜F≤195 second, and be 340 seconds heat time heating time; G is 195＜G≤210 second, and be 360 seconds heat time heating time; H is 210＜H≤225 second, and be 380 seconds heat time heating time; I is 225＜I≤240 second, and be 400 seconds heat time heating time; J is＞240 seconds, and be 420 seconds heat time heating time.
Method of the present invention will be divided into two stages heat time heating time; The time of setting according to upper temp is as the first sequential control mode, and the time of setting according to the stainless-steel pan inner bag the bottom of a pan is as the second sequential control mode.
The present invention compared with prior art adopts microprocessor, realizes control stage by stage; And the temperature spot that the phase I is changeed insulation is higher than the temperature spot that second stage is changeed insulation, and the amount stepping heating in the phase I according to cooking rice is when arriving heating setpoint during the time; Of short duration the stopping of microprocessor control heat-generating disc heated, and when temperature is lower than 100 ℃, at second stage microprocessor control heat-generating disc the pot courage carried out the interval heating; When temperature arrived design temperature point, electric cooker then got into keeping warm mode, through said method; Make when the stainless-steel pan courage is heated not can be with pot in rice burn or boil not yet done; Can control the stainless-steel pan courage accurately, increase the control method of electric cooker, improve accuracy rate different pot courages.
Description of drawings
Fig. 1 is the temperature profile at the bottom of the electric cooker pot for cooking rice.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
As shown in Figure 1, electric cooker is installed in the temperature in the temperature sensor senses the bottom of a pan in the middle circular hole of heat-generating disc by rated power, when rated capacity or 90% is cooked near rated capacity.In beginning a period of time of cooking rice, when the grain of rice and water do not seethe with excitement,, form grain of rice layer because the grain of rice is deposited in the bottom of pot, cause the water on grain of rice layer top and the conduction of the heat of the heat-generating disc under the pot bottom to be obstructed, the temperature of pot upper water is lower than the temperature under the grain of rice layer of the bottom of a pan.The detected cooking bottom temperature of temperature sensor rises in time; After the grain of rice of pot bottom and the water boiling; Temperature is during greater than 100 ℃ a point (as 120 ℃), the boiling aggravation of water, and the water of boiling upwards breaks through grain of rice layer; Pot upper temp and cooking bottom temperature are reached unanimity, and temperature sensor detects cooking bottom temperature and drops to the b point (as 97 ℃) that is lower than 100 ℃ gradually.Heat-generating disc continues heating, and the water to rice is boiled dry gradually, and temperature sensor detects cooking bottom temperature and rises gradually again.Be convenient control, prior art adopts cooking bottom temperature when being higher than the d point (as 140 ℃) that a order, and control circuit cuts off the heating power supply of heat-generating disc, the entering keeping warm mode.Learnt that by experiment the temperature curve in the bottom of a pan presented two crests when electric cooker was cooked, be respectively a point and d point, the trough between a point and the d point is the b point.
The present invention includes following steps:
One, begin to cook, MCU sends the heating order to the heat-generating disc power supply of electric cooker, and heat-generating disc heats the stainless-steel pan inner bag, and the temperature in the stainless-steel pan inner bag the bottom of a pan rises, and temperature sensor begins to monitor in real time the temperature value in the stainless-steel pan inner bag the bottom of a pan.
When two, the temperature in the stainless-steel pan inner bag the bottom of a pan reaches 100 ℃, the boiling of the water of pot bottom, beginning cooking rice.Because heating power, the inner bag volume of electric cooker are fixed; The amount of cooking rice is variable with not being both of the number of having a meal, to identical heating power, inner bag volume, if when boiling less rice; The first temperature spot a, the second temperature spot b and the 3rd temperature spot c are approaching, and it is smooth that temperature curve is tending towards.In order to adapt to the volume change of cooking, control cooked rice, can adopt following method, this temperature curve is divided into two stages: with the b point is the boundary, is the phase I before the b point, b point back is a second stage.In the phase I, choose the intensification temperature range of stainless-steel pan inner bag cooking bottom temperature, as 81-95 ℃, be unit with the second, microprocessor calculates programming rate, thereby judges the cooking rice amount indirectly according to being warming up to 95 ℃ of elapsed times from 81 ℃.According to programming rate, will be divided into different time section (gear) heat time heating time, as marking off 5-20 in advance; The best is 10 gears; Corresponding different gears picks up counting for 95 ℃ from stainless-steel pan inner bag cooking bottom temperature, then stops heating corresponding heat time heating time.Further, according to corresponding gear, temperature control detects stainless-steel pan inner bag top boiling situation in the microprocessor utilization; When seethe with excitement in top; Upper temp is 100 ℃, picks up counting for 100 ℃ from stainless-steel pan inner bag upper temp, and corresponding gear then stops to heat heat time heating time.
Learn through experiment; When control stainless-steel pan inner bag upper temp, can accurately control rice is boiled, so the time that will go up the temperature control setting is as the first sequential control mode; The time that end temperature control is set is promptly paid the utmost attention to the control time that temperature control is set as the second sequential control mode.
Electric cooker stopped to heat 2-4 minute, and the best is 3 minutes, and stainless-steel pan inner bag cooking bottom temperature begins to descend.After heat-generating disc stops to heat the stainless-steel pan inner bag, because the continuation heat effect of heat-generating disc waste heat, in being cooled to the process that b orders; The grain of rice and water (thin rice gruel) constantly boiling: continue cooking rice, in this process, the grain of rice begins deliquescing with the increase of the time of cooking; Because heat-generating disc is not heated, the boiling degree is by greatly progressively reducing (that is to say water open by reaching for a short time greatly), avoided the grain of rice of deliquescing to bloom and popped; Make that the rice grain that boils is full, rice more passes through the heart, and mouthfeel is good; All right effectively saves energy, but also do not have thin rice gruel to overflow.
When three, stainless-steel pan inner bag cooking bottom temperature was reduced to the second temperature spot b, MCU sent to heat-generating disc and continues the heating order, and the heat-generating disc power supply receives heating order back the stainless-steel pan inner bag is continued heating; Mode of heating is heating blanking time, promptly to the heat-generating disc 15 second time of heating, stops to heat 5 second time; Heat 15 second time again; ..., continuing cooking rice, temperature sensor continues to adopt the real time temperature value in the stainless-steel pan inner bag the bottom of a pan.
When four, stainless-steel pan inner bag cooking bottom temperature arrives the 3rd temperature spot c; MCU sends to the heat-generating disc power supply and stops the heating order, and heat-generating disc stops to heat the stainless-steel pan inner bag, and MCU sends the insulation order to electric cooker simultaneously; Electric cooker gets into keeping warm mode; Cooking rice finishes, and the superfluous water steam in the rice is by progressively evaporation, and the temperature of stainless-steel pan inner bag begins to descend.
The diameter of the heat-generating disc that the present invention adopts is not less than the external diameter of stainless-steel pan inner bag.
First temperature sensor (end temperature control) that in the circular hole in the middle of the heat-generating disc, is provided with is measured stainless-steel pan inner bag cooking bottom temperature.Electric cooker cover or a pot courage upper side is equipped with second temperature sensor (going up temperature control); Measure the temperature on electric cooker top; Be used for further measuring accurately control electric cooker cooking rice, said first temperature sensor and second temperature sensor adopt negative temperature coefficient NTC thermistor.
Embodiment: heating power is 900W, 5L, will be divided into 10 gears the phase I, and is 10 grades corresponding heating-up time, according to the heat time heating time that the heat time heating time of end temperature control temperature setting, last temperature control temperature are set, as shown in table 1.Phase I stops heating (changeing insulation) temperature and is set to 130 ℃, and arrive heat time heating time, stops to heat 99 ℃ of 3 fens clock times temperature control temperature on earth; Phase I finishes, and gets into second stage, heats 15 seconds; Stopped to heat 5 seconds; Circulate with this, change insulation to more than or equal to 102 ℃ of the end temperature control temperature time, second stage finishes.
Table 1: gear control time
Claims (10)
1. the control method of a stainless-steel pan courage electric cooker cooking rice; May further comprise the steps: one, begin to cook; Microprocessor sends the heating order to the heat-generating disc power supply of electric cooker; Heat-generating disc heats the stainless-steel pan inner bag, and temperature sensor is monitored the temperature value in the stainless-steel pan inner bag the bottom of a pan in real time; Two, microprocessor is chosen the required time of intensification scope of stainless-steel pan inner bag cooking bottom temperature, calculates programming rate, according to programming rate, will be divided into section heat time heating time of 5-20 gear heat time heating time, then stops heat time heating time heating a period of time; When three, stainless-steel pan inner bag cooking bottom temperature was reduced to second temperature spot, microprocessor sent to heat-generating disc and continues the heating order, and the heat-generating disc power supply receives heating order back the stainless-steel pan inner bag is continued heating, and mode of heating is heating blanking time; When four, stainless-steel pan inner bag cooking bottom temperature arrived the 3rd temperature spot, microprocessor sent to the heat-generating disc power supply and stops the heating order, and heat-generating disc stops to heat the stainless-steel pan inner bag, and cooking rice finishes; Temperature when heat time heating time, section finished that said first temperature spot is the 5-20 gear, the temperature of said second temperature spot is not more than 100 ℃ near 100 ℃, and the temperature of the 3rd temperature spot is lower than the temperature of first temperature spot and greater than 100 ℃; The diameter of said heat-generating disc is not less than the external diameter of stainless-steel pan inner bag.
2. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 1 is characterized in that: said according to the heating-up time, will be divided into time period of 10 gears heat time heating time.
3. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 2 is characterized in that: said microprocessor is warming up to 95 ℃ of elapsed times according to the stainless-steel pan inner bag the bottom of a pan from 81 ℃, calculates programming rate.
4. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 3 is characterized in that: then stop to heat a period of time said heat time heating time for stopping to heat 3 minutes.
5. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 4 is characterized in that: be heated to be said blanking time the heat-generating disc 15 second time of energising, the mode of 5 second time of outage circulates.
6. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 5; It is characterized in that: said electric cooker cover or a pot courage upper side is equipped with second temperature sensor; Microprocessor picks up counting for 100 ℃ from stainless-steel pan inner bag upper temp, then stops heating heat time heating time by the gear of correspondence.
7. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 6 is characterized in that: saidly be warming up to 95 ℃ of elapsed times from 81 ℃ and be: A is≤60 seconds, and be 170 seconds heat time heating time; B is 60＜B≤120 second, and be 200 seconds heat time heating time; C is 120＜C≤140 second, and be 210 seconds heat time heating time; D is 140＜D≤160 second, and be 220 seconds heat time heating time; E is 160＜E≤180 second, and be 230 seconds heat time heating time; F is 180＜F≤195 second, and be 240 seconds heat time heating time; G is 195＜G≤210 second, and be 250 seconds heat time heating time; H is 210＜H≤225 second, and be 260 seconds heat time heating time; I is 225＜I≤240 second, and be 270 seconds heat time heating time; J is＞240 seconds, and be 280 seconds heat time heating time.
8. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 5 is characterized in that: said microprocessor picks up counting for 95 ℃ from stainless-steel pan inner bag cooking bottom temperature, then stops heating heat time heating time by the gear of correspondence.
9. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 8 is characterized in that: saidly be warming up to 95 ℃ of elapsed times from 81 ℃ and be: A is≤60 seconds, and be 180 seconds heat time heating time; B is 60＜B≤120 second, and be 250 seconds heat time heating time; C is 120＜C≤140 second, and be 280 seconds heat time heating time; D is 140＜D≤160 second, and be 300 seconds heat time heating time; E is 160＜E≤180 second, and be 320 seconds heat time heating time; F is 180＜F≤195 second, and be 340 seconds heat time heating time; G is 195＜G≤210 second, and be 360 seconds heat time heating time; H is 210＜H≤225 second, and be 380 seconds heat time heating time; I is 225＜I≤240 second, and be 400 seconds heat time heating time; J is＞240 seconds, and be 420 seconds heat time heating time.
10. the control method of stainless-steel pan courage electric cooker cooking rice according to claim 8 is characterized in that: saidly will be divided into two stages heat time heating time; The time of setting according to upper temp is as the first sequential control mode, and the time of setting according to the stainless-steel pan inner bag the bottom of a pan is as the second sequential control mode.
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| CN103637673A (en) * | 2013-12-04 | 2014-03-19 | 浙江绍兴苏泊尔生活电器有限公司 | Food heating method and device |
| CN104257268A (en) * | 2014-09-03 | 2015-01-07 | 九阳股份有限公司 | Rice cooker and control method thereof |
| CN105266563A (en) * | 2015-10-28 | 2016-01-27 | 小米科技有限责任公司 | Method and device for electric rice cooker heat preservation control |
| CN106020269A (en) * | 2016-06-30 | 2016-10-12 | 珠海格力电器股份有限公司 | Temperature control method, equipment and device |
| CN107692853A (en) * | 2017-07-14 | 2018-02-16 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of cooking appliance |
| CN109077622A (en) * | 2017-06-13 | 2018-12-25 | 佛山市顺德区美的电热电器制造有限公司 | The electromagnetic heating control method and electric cooker of electric cooker |
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| CN109965713B (en) * | 2014-06-12 | 2021-10-22 | 佛山市顺德区美的电热电器制造有限公司 | Steamer of electric cooker, electric cooker and control method of electric cooker |
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| CN105266563A (en) * | 2015-10-28 | 2016-01-27 | 小米科技有限责任公司 | Method and device for electric rice cooker heat preservation control |
| CN105266563B (en) * | 2015-10-28 | 2017-03-08 | 小米科技有限责任公司 | Electric cooker thermal-insulation control method and device |
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| CN109077622A (en) * | 2017-06-13 | 2018-12-25 | 佛山市顺德区美的电热电器制造有限公司 | The electromagnetic heating control method and electric cooker of electric cooker |
| CN109077622B (en) * | 2017-06-13 | 2024-02-20 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating control method of electric cooker and electric cooker |
| CN107692853A (en) * | 2017-07-14 | 2018-02-16 | 浙江绍兴苏泊尔生活电器有限公司 | Control method of cooking appliance |
| CN110115521A (en) * | 2018-02-06 | 2019-08-13 | 佛山市顺德区美的电热电器制造有限公司 | Control method, device, storage medium and the food cooking machine of food cooking machine |
| CN111713957A (en) * | 2019-03-19 | 2020-09-29 | 佛山市顺德区美的电热电器制造有限公司 | Cooking method, cooking equipment and computer readable storage medium |
| CN112859963A (en) * | 2019-11-27 | 2021-05-28 | 佛山市顺德区美的电热电器制造有限公司 | Control method, device, equipment and storage medium |
| CN112859963B (en) * | 2019-11-27 | 2022-10-14 | 佛山市顺德区美的电热电器制造有限公司 | Control method, device, equipment and storage medium |
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