A kind of control method of the spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan
Technical field
The invention belongs to electric pressure cooking saucepan control technology field, the control method of overflowing and spraying appears in particularly a kind of fast quick-opening lid process of electric pressure cooking saucepan that prevents.
Background technology
Pressure cooker is accepted by the consumer with its fast cooking now, and in the future extraordinary growth momentum is arranged.But following it that shortcoming is arranged again is exactly can not uncap for a long time, and it is obvious especially particularly to cook congee, even the time of sometimes uncapping is greater than the time of cooking.In order to let its quick-opening lid soon, the electromagnet of widespread usage promotes mode that iron ball and manual push rod promote air bleeding valve and carries out exhaust and let its fast quick-opening lid now.Cook congee or during Baoshang in use, directly exhaust, the phenomenon that congee or spray soup can occur spraying scald the user easily, and the liquid of ejection can splash pot cover or desktop.
Among Fig. 1, the cooking process of the natural step-down of existing electric pressure cooking saucepan product comprises the natural cooling stage after heating period, boiling stage, packing stage and culinary art finish, and nature is very long cool time, can not uncap for a long time.Among Fig. 2, the cooking process of the pressure step-down of existing electric pressure cooking saucepan product is to adopt compulsive means to make electric pressure cooking saucepan get into the forced exhaust course of work at the natural cooling stage of scheming.
Summary of the invention
Spray congee or excessive congee problem appear when solving fast quick-opening lid in the present invention provides a kind of fast quick-opening lid process of electric pressure cooking saucepan occur overflowing control method of spray that prevents; In this control method; Electric pressure cooking saucepan detects automatically, automatic vent to be preventing to overflow, spray congee, thereby ensures user's security and can play the effect of fast quick-opening lid.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of control method of the spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan; Said electric pressure cooking saucepan comprises heater, electric control gear, temperature measuring equipment and the pressure-detecting device of mutual electrical connection and is positioned at the exhaust apparatus of loam cake; Electric control gear comprises control module, memory cell and timing unit; Temperature measuring equipment comprises loam cake temperature measuring equipment and bottom temperature measuring equipment; Be provided with in the said memory cell and prevent fast quick-opening lid process occur the overflowing control program of congee and spray congee, the time signal control electric pressure cooking saucepan that temperature signal that said control program obtains according to temperature measuring equipment and timing unit obtain gets into the heating period in regular turn, keeps boiling stage, first packing stage and second packing stage.
In the control method of the above-mentioned spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan, the said heating period comprises:
Control module drives heater and begins heating, and timing unit calculates cooking time t, and the loam cake temperature measuring equipment detects kettle temperature T;
When t less than first preset time t
1, perhaps T is less than the first preset temperature T
1The time, heating unit compares P with the first preset Power Regulation
1Heat;
When t more than or equal to first preset time t
1, perhaps T is more than or equal to the first preset temperature T
1The time, get into and keep boiling stage.
Preferably, P is compared in the first preset Power Regulation
1=32/32; 55 ℃≤T of first preset temperature
1≤60 ℃, first Preset Time 15min≤t
1≤25min.
In the control method of the above-mentioned spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan, the said boiling stage of keeping comprises:
Timing unit recomputates cooking time t, and the loam cake temperature measuring equipment detects kettle temperature T again;
When t less than second preset time t
2, perhaps T is less than the second preset temperature T
2The time, heating unit compares P with the second preset Power Regulation
2Heat;
When t more than or equal to second preset time t
2Perhaps T is more than or equal to the second preset temperature T
2The time, get into first packing stage.
Preferably, the second preset Power Regulation is than 10/32≤P
2≤24/32; 87 ℃≤T of second preset temperature
2≤98 ℃, second Preset Time 30min≤t
2≤40min.
In the control method of the above-mentioned spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan, said first packing stage comprises:
Timing unit recomputates cooking time t, and the loam cake temperature measuring equipment detects kettle temperature T again, and the bottom of a pan temperature measuring equipment detects kettle temperature T again
d
When t less than the 3rd preset time t
3The time, bottom temp control T
D1≤T
d≤T
D2, or loam cake temperature control T
3≤T≤T
4, heating unit compares P with the 3rd preset Power Regulation
3Heat;
When t more than or equal to the 3rd preset time t
3The time, getting into second packing stage, this graduated discharge device is closed.
Preferably, the 3rd preset Power Regulation is than 12/32≤P
3≤20/32; Bottom preset temperature T
D1=128 ℃, T
D2=130 ℃; Loam cake preset temperature T
3=100 ℃, T
4=102 ℃, the 3rd Preset Time 15min≤t
3≤40min.
First packing stage can let the interior food absorption of pot reach the effect of reasonable culinary art to enough heats.
In the control method of the above-mentioned spray of overflowing when preventing the fast quick-opening lid of electric pressure cooking saucepan, said second packing stage comprises:
Timing unit recomputates cooking time t, and the loam cake temperature measuring equipment detects kettle temperature T again, and the bottom of a pan temperature measuring equipment detects kettle temperature T again
d
When t less than the 4th preset time t
4The time, heating unit is closed heat driven, recomputates and judges detection cooking time t and loam cake temperature T;
When t more than or equal to the 4th preset time t
4Perhaps T is more than or equal to the 5th preset temperature T
5, cooking function finishes, and can directly carry out fast quick-opening lid.
Preferably, 96 ℃≤T of the 5th preset temperature
5≤98 ℃, the 4th Preset Time 20min≤t
4≤30min.
Second packing stage can let the interior pressure of pot cool off naturally, reaches suitable pressure spot, carries out normal exhaust so that open exhaust apparatus.
Compared with prior art, the present invention with respect to the beneficial effect of prior art is:
Control method of the present invention prevents that through being provided with in the memory cell control program of excessive congee and spray congee from appearring in fast quick-opening lid process.The present invention sets heating, boiling and packing stage stage, makes culinary art add heat and can reach the needed heat of food.Be different from traditional type of cooling, the present invention is divided into two courses of work with pressurize, first packing stage: in order to let the interior food absorption of pot reach the effect of reasonable culinary art to enough heats; Second packing stage: in order to let the interior pressure of pot cool off naturally; Reach suitable pressure spot; Carry out normal exhaust so that open exhaust apparatus; Thereby ensure user's security and can play the effect of fast quick-opening lid, solved excessive congee that the conventional pressure pot forces to occur in the middle of the process of uncapping and caused with spray congee to the pollution of environment with to the problem of the injury of the person.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is for being the cooking process sketch map of the natural step-down of existing electric pressure cooking saucepan product;
The cooking process sketch map of the pressure step-down of the existing electric pressure cooking saucepan product of Fig. 2;
Fig. 3 is an electric pressure cooking saucepan cooking process sketch map of the present invention;
Fig. 4 is a control method flow chart of the present invention;
Fig. 5 is the structural representation of electric pressure cooking saucepan.
The specific embodiment
Like Fig. 5; Electric pressure cooking saucepan of the present invention comprises heater 1, electric control gear 2, temperature measuring equipment and the pressure-detecting device 4 of mutual electrical connection and is positioned at the exhaust apparatus 5 of loam cake; Electric control gear 2 comprises control module, memory cell and timing unit; Temperature measuring equipment comprises loam cake temperature measuring equipment 31 and bottom temperature measuring equipment 32; Be provided with in the said memory cell and prevent fast quick-opening lid process occur the overflowing control program of congee and spray congee, the time signal control electric pressure cooking saucepan that temperature signal that said control program obtains according to temperature measuring equipment and timing unit obtain gets into the heating period in regular turn, keeps boiling stage, first packing stage and second packing stage.
The output of loam cake temperature measuring equipment 31, bottom temperature measuring equipment 32, pressure-detecting device 4 and exhaust apparatus 5 is connected with the input of electric control gear 2, and the output of electric control gear 2 is electrically connected with heater 1 input.
In Fig. 3, electric pressure cooking saucepan product cooking process of the present invention comprises the heating period, keeps boiling stage, first packing stage, second packing stage and exhaust phase, wherein a long time of shortening than the prior art of Fig. 1 of exhaust phase.
As shown in Figure 4, electric control gear 2 control voltage power prevent that the control procedure of the middle excessive congee spray congee that occurs of fast quick-opening lid process from comprising following process:
Heating period: in the heating period, heater is opened heating, and loam cake, bottom temperature measuring equipment begin to detect kettle temperature, and the kettle temperature information real-time is passed to electric control gear.In order to make kettle temperature arrive rapidly a setting value, generally adopt high-power or total power heats in the heating period.Heating period is heated (P in the present embodiment with preset first Power Regulation ratio
1Be 32/32, be heating with full power), this moment, timing unit picked up counting, and picked up counting time t more than or equal to preset time t up to timing unit from 0
1(t in the present embodiment
1Be 20 minutes), perhaps detected temperatures T is more than or equal to preset temperature T
1After (in the present embodiment being 55 ℃), this stage just can finish, and gets into next stage.Otherwise cooking process still is in the heating period, and with P
1For the Power Regulation ratio heats.
Keep boiling stage: keeping boiling stage has the heat that adds of an equilibrium by food, need be according to the duration and degree of heating of how much strict control of food.Prevent to cause the inaccurate problem of thermometric, thereby cause pressure out of control because heating with full power adds heat and causes cold air row totally not spiral at last cover sensor place more greatly.The purpose in this stage is to guarantee that pressure control lets it can reach the state of pressing below the situation accurately, and the heating period is heated (P in the present embodiment to preset Power Regulation first Power Regulation ratio
2Be 20/32, heat), this moment, timing unit picked up counting, and picked up counting time t more than or equal to preset time t up to timing unit from 0
2(t in the present embodiment
2Be 30 minutes), perhaps detected temperatures T is more than or equal to preset temperature T
2After (be 98 ℃ in the present embodiment, be equivalent to the pressure position 30KP in the pot), this stage just can finish, and gets into next stage.Otherwise cooking process still is in the heating period, and with P
2For the Power Regulation ratio heats.
First packing stage: the characteristics memory cell of packing stage is preset with bottom control temperature T
3, T
4With loam cake control temperature T
D1, T
D2.In two temperature, bottom being preset with, control temperature T for any one
3With loam cake control temperature T
D1, heater cuts out heating, and any one is lower than and is preset with bottom control temperature T in two temperature
4With loam cake control temperature T
D2, heater is opened heating.This method can make kettle temperature be equilibrated at a certain temperature always, reaches the excellent pressure maintaining effect.Packing stage compares P with preset Power Regulation
3Heat (P in the present embodiment
3Be 20/32), up to timing unit since 0 time t more than or equal to preset time t
3(t in this enforcement congee standard feature example
3Be 30 minutes) after, cooking process finishes.
Second packing stage: this stage is the most important stage in the middle of the fast quick-opening lid process; The value that loam cake sensor temperature T reaches setting in pot just can be carried out fast quick-opening lid; This stage loam cake temperature reaches 97 °, and its corresponding pressure limit is the pressure limit of 5KP to 10KP.Can carry out fast quick-opening lid, fast quick-opening lid can not cause danger to the person below this pressure, and can prevent spray and excessive problem in the middle of the fast quick-opening lid process.If do not reach the temperature value of setting, timing unit since 0 time t more than or equal to preset time t
4(t in this enforcement congee standard feature example
3Be 30 minutes) after, cooking process finishes.
Compare P about Power Regulation; Be meant that heater is when the small-power Power Regulation is heated; The cyclically-varying that heater can hocket heating, stop, heating, stop; Power Regulation is in the one-period that this hockets than P, the ratio of heat time heating time and heat time heating time and dwell time sum, and also i.e. this Power Regulation is than limiting the heating frequency of heater at some working stages.To keep boiling stage is example, like P
2=10/32, its meaning for 32 seconds be the one-period (containing heat time heating time and dwell time) of small-power Power Regulation, wherein 10 seconds is heat time heating time, dwell time is 22 seconds.Keep the small-power Power Regulation that contains N cycle in the boiling stage, promptly keeping the boiling phase I, the every heating of heater 10 seconds stops 22 seconds then, continues heating 10 seconds then, stops 22 seconds.