CN102687985B - Electric cooker and heat preservation method thereof - Google Patents
Electric cooker and heat preservation method thereof Download PDFInfo
- Publication number
- CN102687985B CN102687985B CN201110071406.5A CN201110071406A CN102687985B CN 102687985 B CN102687985 B CN 102687985B CN 201110071406 A CN201110071406 A CN 201110071406A CN 102687985 B CN102687985 B CN 102687985B
- Authority
- CN
- China
- Prior art keywords
- temperature
- time
- predetermined
- insulation
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Cookers (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention provides an electric cooker and a heat preservation method thereof. The heat preservation method of the electric cooker comprises the following steps that: a control unit receives a preset heating mode selected by the user from multiple preset heating modes; a temperature detection unit obtains the temperature of a heating area in a liner; and a control unit receives the temperature of the heating area, and controls the heating device according to the preset heating mode selected by the user to preserve heat of the food contained in the liner according to the preset heat preservation curve. According to the invention, the heating device is controlled according to the heat preservation mode selected by the user to preserve heat of the food contained in the liner according to the preset heat preservation curve, the heat preservation needs for different functions can be met, and the heat preservation temperature is dynamically set according to the external input and the conditions in the electric cooker so as to solve the problem that the electric cooker of the prior art cannot dynamically set the heat preservation temperature according to the conditions inside and outside.
Description
Technical field
The present invention relates to a kind of kitchen utensils field, relate in particular to a kind of electric cooker and heat preserving method thereof.
Background technology
The electric cooker of current domestic sale only has one " insulation " shelves, and its heat-preserving range is at 60 DEG C-80 DEG C, and Fig. 1 shows the keeping temprature curve schematic diagram of the electric cooker of prior art.As shown in Figure 1, cook etc. after operation when electric cooker of the prior art completes, holding temperature can only be stabilized in certain fixed value.So, in the time that temperature retention time is longer, may cause food spoilage.
And external electric cooker, although its insulation shelves are divided into two grades of soak and low temperature insulations, can only be incubated for rice, and insulating process is geostationary, some condition solidified.The electric cooker that adopts this kind of mode to be incubated, even extraneous factor difference, electric cooker also can only adopt identical keeping temprature curve, cannot holding temperature be dynamically set according to inside and outside situation.
Summary of the invention
The present invention aims to provide a kind of electric cooker and heat preserving method thereof, and the problem of holding temperature cannot be dynamically set according to inside and outside situation to solve electric cooker of the prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of electric cooker heat preserving method, having comprised: control module has received user's selected predetermined heat pattern from multiple predetermined heat patterns; Temperature detecting unit obtains the Heating Zone Temperature in inner bag; Control module receives Heating Zone Temperature, and the predetermined heat pattern control heater of selecting according to user is incubated according to predetermined keeping temprature curve.
Further, in the time that predetermined heat pattern is insulation pattern, control module control heater is incubated and comprises the food holding in inner bag according to predetermined keeping temprature curve: judge whether Heating Zone Temperature is greater than the first default temperature threshold; In the time that Heating Zone Temperature is greater than the first default temperature threshold, control module drops to the first temperature threshold time control refrigerating/heating apparatus in Heating Zone Temperature and starts working; In the time that Heating Zone Temperature is heated to the first heating-up temperature by heater, the heating of control module control heater stop, wherein, the first heating-up temperature is greater than the first default temperature threshold.
Further, control module control heater is also incubated and comprises the food holding in inner bag according to predetermined keeping temprature curve: in the time that Heating Zone Temperature is less than or equal to the first default temperature threshold, and the heating of control module control heater; In the time that Heating Zone Temperature is heated to the second heating-up temperature by heater, the heating of control module control heater stop, wherein, the second heating-up temperature is greater than the first heating-up temperature.
Further, in the time that predetermined heat pattern is the first heating mode, control module control heater is incubated and comprises the food holding in inner bag according to predetermined keeping temprature curve: be the second subinterval of the first subinterval of corresponding the first insulation shelves, corresponding the second insulation shelves and the 3rd subinterval of corresponding the 3rd insulation shelves by predetermined temperature interval division; When the corresponding operation of the first heating mode completes and when Heating Zone Temperature is less than or equal to the second default temperature threshold, control module control heater is started working, and number of times or predetermined time based on predetermined carry out the first cyclic process, the first cyclic process comprises: the work of control module control heater, makes Heating Zone Temperature rise to the 3rd heating-up temperature; In the time that Heating Zone Temperature is heated to the 3rd heating-up temperature by heater, the heating of control module control heater stop; In the time that Heating Zone Temperature drops to the 4th heating-up temperature, control module control heater is started working, and wherein, the 3rd heating-up temperature is positioned at the first insulation shelves, and the 4th heating-up temperature is positioned at the second insulation shelves, and the first insulation shelves temperature is greater than the second insulation shelves temperature.
Further, in the time that predetermined heat pattern is the second heating mode, controls heater and according to predetermined keeping temprature curve, the food holding in inner bag is incubated and is comprised: be the second subinterval and corresponding the 3rd insulation shelves the 3rd subinterval of the first subinterval of corresponding the first insulation shelves, corresponding the second insulation shelves by predetermined temperature interval division; When the corresponding operation of the second heating mode completes and when Heating Zone Temperature is less than or equal to the 3rd default temperature threshold, control module control heater is started working, and number of times or predetermined time based on predetermined carry out the second cyclic process, until Heating Zone Temperature is stabilized on predetermined middle Wen Wendu, the second cyclic process comprises: the work of control module control heater, makes Heating Zone Temperature rise to ceiling temperature; In the time that Heating Zone Temperature is heated to ceiling temperature by heater, the heating of control module control heater stop; In the time that Heating Zone Temperature drops to lower limit temperature, control module control heater is started working, wherein, the initial value of ceiling temperature is positioned at the first insulation shelves, the initial value of lower limit temperature is positioned at the 3rd insulation shelves, ceiling temperature increases progressively and successively decreases according to predetermined variation amount with cycle-index or time, and lower limit temperature increases progressively and increases progressively according to predetermined variation amount with cycle-index or time.
Further, when number of times based on predetermined is carried out the second cyclic process, control module is carried out the n time the second cyclic process and is comprised: judge in the n time the second cyclic process by the predetermined variation amount ceiling temperature Tmax (n) obtaining that successively decreases whether be greater than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time; When the ceiling temperature Tmax (n) in the n time second cyclic process of obtaining is greater than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as by the predetermined variation amount ceiling temperature Tmax (n) obtaining that successively decreases; When the ceiling temperature Tmax (n) in the n time second cyclic process of obtaining is less than or equal to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual upper bound temperature is defined as to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, wherein, average temperature value Tmid (n-1) in the n-1 time the second cyclic process is the n-1 time actual upper bound temperature in the second cyclic process and the mean value of actual lower limit temperature, and n is more than or equal to 2 and be less than the natural number of pre-determined number.
Further, control module is carried out the n time the second cyclic process and is also comprised: judge in the n time the second cyclic process whether the lower limit temperature Tmin (n) that increases progressively acquisition by predetermined variation amount is less than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time; When the lower limit temperature Tmin (n) in the n time second cyclic process of obtaining is less than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as increasing progressively by predetermined variation amount the lower limit temperature Tmin (n) of acquisition; When the lower limit temperature Tmin (n) in the n time second cyclic process of obtaining is greater than or equal to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual lower limit temperature is defined as to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time.
Further, predetermined variation amount obtains in such a way: obtain the default insulation amount of carrying out when the second heating mode, and correction insulation amount when obtaining the second heating mode and completing; Predetermined variation amount is defined as to the absolute value of the difference of default insulation amount and correction insulation amount, wherein, default insulation amount adopts while carrying out operation corresponding to the second heating mode, food in inner bag characterizes from predetermined sample temperature to the required time that seethes with excitement, when correction insulation amount adopts the corresponding operation of the second heating mode to complete, in predetermined amount of time, temperature slippage characterizes.
Further, in the time that the corresponding operation of the second heating mode completes, in predetermined amount of time, temperature slippage is lower than default maximum temperature slippage, predetermined variation amount obtains in such a way: obtain the default insulation amount of carrying out when the second heating mode, and maximum modified insulation amount when obtaining the second heating mode and completing; Be the absolute value of the difference of default insulation amount and maximum modified insulation amount by predetermined variation amount, wherein, maximum modified insulation amount adopts default maximum temperature slippage to characterize.
According to another aspect of we's invention, a kind of electric cooker is provided, comprising: operating unit, the predetermined heat pattern of selecting for receiving user; Temperature detecting unit, for obtaining the Heating Zone Temperature in inner bag; Control module, is connected with operating unit and temperature detecting unit; Heater, be connected with control module, wherein, control module receives user selected predetermined heat pattern and Heating Zone Temperature from multiple predetermined heat patterns, and the predetermined heat pattern control heater of selecting according to user is incubated according to predetermined keeping temprature curve.
Apply technical scheme of the present invention, by the mode that adopts the insulation pattern control heater of selecting according to user according to predetermined keeping temprature curve, the food holding in inner bag to be incubated, can meet the insulation demand of difference in functionality, according to the situation of outside input and electric cooker inside, holding temperature is dynamically set, thereby has solved electric cooker of the prior art and cannot dynamically arrange according to inside and outside situation the problem of holding temperature.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the keeping temprature curve schematic diagram of the electric cooker of prior art;
Fig. 2 shows the overall structure schematic diagram of the electric cooker that the embodiment of the present invention uses;
Fig. 3 shows the circuit theory schematic diagram of the electric cooker that the embodiment of the present invention uses;
Fig. 4 shows the electric cooker heat preserving method flow chart of the embodiment of the present invention one;
Fig. 5 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention one;
Fig. 6 shows the electric cooker heat preserving method flow chart of the embodiment of the present invention two;
Fig. 7 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention two;
Fig. 8 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention three; And
Fig. 9 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 2 shows the overall structure schematic diagram of the electric cooker that the embodiment of the present invention uses.As shown in Figure 2, electric cooker comprises operating unit 10, display unit 30, temperature detecting unit and heater.
Wherein, temperature detecting unit comprises upper cover temperature detecting unit 51 and cooking bottom temperature detecting unit 53, and heater comprises upper cover heater 71, sidepiece heater 73 and bottom heating device 75.
Operating unit 10 is for electric cooker being operated to input, can be made up of multiple buttons or other input modes, is mainly function and the working method of selecting rice cooker, and can starts or cancel a certain work.
Upper cover temperature detecting unit 51 is the temperature for detecting rice cooker pot body top, and feeds back to control module; Cooking bottom temperature detecting unit 53 is the temperature for detecting the bottom of a pan, and feeds back to control module.The temperature in inner container of electric cooker is judged by upper cover temperature detecting unit 51 and the common detection of cooking bottom temperature detecting unit 53.Its decision method can calculate by averaging, and also can give predetermined weights by the temperature that upper cover temperature detecting unit 51 and cooking bottom temperature detecting unit 53 are obtained, and calculates by weighted average.
And upper cover heater 71 is used for heating cooker upper cover cover plate, to be convenient to internally pot and to carry out heating from top to bottom, its device form can be the heater element such as heating wire or heater coil; Sidepiece heater 73 is used for heating cooker pot body middle part, and its device form can be the heater element such as heating wire or heater coil; Inner bag is carried on bottom heating device 75, and from bottom, internal pot heats bottom heating device 75, and its device form can be the heater element such as heat-generating disc or heater coil.The heater that comprises upper cover heater 71, sidepiece heater 73 and bottom heating device 75 by control carries out work, just can realize the effect that food in inner bag is heated.
Fig. 3 shows the circuit theory schematic diagram of the electric cooker that the embodiment of the present invention uses.As shown in Figure 3, user can select a kind of heating mode by operating unit 10 from multiple predetermined heat pattern.Control module 90 is according to user's selection, by the temperature detecting unit feedback temperature information that comprises upper cover temperature detecting unit 51 and cooking bottom temperature detecting unit 53, comprise that the heater of upper cover heater 71, sidepiece heater 73 and bottom heating device 75 carries out work or quits work thereby control.Meanwhile, its duty can be shown by display unit 30.
Wherein, in an embodiment of the present invention, the electric cooker predetermined temperature interval division using is multiple subintervals, and the corresponding insulation shelves in each subinterval.According to the difference of selected predetermined heat pattern, the electric cooker using in embodiments of the invention can be implemented heat insulation function in different insulation shelves, thereby different food can be incubated under different holding temperatures.Wherein, the temperature range of each insulation shelves can be selected according to user's actual conditions, or determines based on experience value.And in an embodiment of the present invention, operating unit 10 can be selected different insulation shelves, and show the state of rice cooker by display unit 2, as shown soak, the insulation of middle temperature, three show labels of low temperature insulation.
In order to reduce control difficulty, be generally the second subinterval and corresponding the 3rd insulation shelves the 3rd subinterval of the first subinterval of corresponding the first insulation shelves, corresponding the second insulation shelves by predetermined temperature interval division.For example, can be according to the sensation of human body, be that the temperature range section definition of [75 DEG C, 95 DEG C] is high temperature shelves by temperature range, or be defined as the first insulation shelves; By temperature range be [65 DEG C, 75 DEG C) temperature range section definition be middle temperature shelves, or be defined as the second insulation shelves; By temperature range be [45 DEG C, 65 DEG C) temperature range section definition be low temperature shelves, or be defined as the 3rd insulation shelves.
And, can divide the pattern of heating according to institute's heat food kind in heat-preservation liner.The content of its solution after completing according to function of electric rice cooker (as water, Yoghourt), heating mode is divided into two kinds.One is the first heating mode, and under this heating mode, its solution content high (can obviously see moisture) after heating function completes, as congee, soup, boiling, Yoghourt, stew etc.; One is the second heating mode, under this heating mode, its solution content low (almost can't see moisture) after heating function completes, as cook, cake etc.
For convenience of description, temperature range taking the first insulation shelves is [75 DEG C below, 95 DEG C], the temperature range of the second insulation shelves is [65 DEG C, 75 DEG C), the temperature range of the 3rd insulation shelves be [45 DEG C, 65 DEG C) dividing mode be example, introduce in detail the heat preserving method of the electric cooker shown in Fig. 2 and Fig. 3.
Fig. 4 shows the electric cooker heat preserving method flow chart of the embodiment of the present invention one.As shown in Figure 4, electric cooker heat preserving method comprises:
S101, control module receives user's selected insulation pattern from multiple predetermined heat patterns;
S103, temperature detecting unit obtains the Heating Zone Temperature in inner bag;
S105, control module receives Heating Zone Temperature, and the insulation pattern control heater of selecting according to user is incubated the food holding in inner bag according to predetermined keeping temprature curve.
In the present embodiment, what illustrate is user in the time using electric cooker, the heat preserving mode of electric cooker while directly selecting heat insulation function.Be to be user in the time using electric cooker shown in the present embodiment, make electric cooker directly enter the situation of keeping warm mode from holding state.
Particularly, control module control heater is incubated and comprises the food holding in inner bag according to predetermined keeping temprature curve:
Judge whether Heating Zone Temperature is greater than the first default temperature threshold, selects after insulation pattern user, temperature detecting unit detects electric cooker and carries out the Heating Zone Temperature in the front inner bag of operation corresponding to insulation pattern.Control module 90 receives the Heating Zone Temperature in the inner bag of temperature detecting unit feedback, and judge whether Heating Zone Temperature is greater than the first default temperature threshold, judge that whether more a certain Heating Zone Temperature temperature value in inner container of electric cooker be high, this first default temperature threshold can be set voluntarily by user, or is determined according to the model of electric cooker and purposes by manufacturer.If the more a certain temperature value of the Heating Zone Temperature in inner container of electric cooker is high, the temperature that is the thermal treatment zone is greater than a default temperature threshold, control module 90 drops to this temperature threshold time control refrigerating/heating apparatus in Heating Zone Temperature and starts working, in the time that the Heating Zone Temperature in inner bag is heated to the first heating-up temperature by heater, control module 90 is controlled heater stop heating.As default temperature threshold is set is 65 DEG C, the Heating Zone Temperature that temperature detecting unit detects before keeping warm mode if enter is higher than 65 DEG C, waits for that when Heating Zone Temperature in electric cooker is equal to or less than 65 DEG C, heater is started working; In the time that the food in inner bag and inner bag is heated to the first temperature by heater, heater stop work, and the holding temperature of food in inner bag is stabilized in to the first temperature.Wherein, the first temperature is a preset temperature higher than the first temperature threshold, and its temperature value can be a preferably temperature value of food heat insulation effect that can make insulation in inner bag, also can be for being positioned at the arbitrary temp value of three insulation shelves.
Can find out from the course of work of heater, under insulation pattern and when Heating Zone Temperature is greater than the first default temperature threshold, predetermined keeping temprature curve comprises three phases:
First stage, the Heating Zone Temperature that temperature detecting unit detects from entering keeping warm mode of the Heating Zone Temperature in inner bag is down to the first predetermined temperature threshold;
Second stage, rises to the first heating-up temperature by the Heating Zone Temperature in inner bag from the first predetermined temperature threshold;
Phase III, by constant the Heating Zone Temperature in inner bag first heating-up temperature that remains on.
If the Heating Zone Temperature in inner container of electric cooker is less than or equal to the first default temperature threshold, select after insulation pattern user, the Heating Zone Temperature that temperature detecting unit detects in the front inner bag of operation corresponding to electric cooker execution insulation pattern is less than or equal to the first default temperature threshold, control module 90 is controlled heater and is started working, in the time that Heating Zone Temperature is heated to the second heating-up temperature by heater, the heating of control module control heater stop.As default temperature threshold is set is 65 DEG C, be less than or equal to 65 DEG C if enter the temperature that temperature detecting unit detects before keeping warm mode, heater is started working; In the time that the food in inner bag and inner bag is heated to the second temperature by heater, heater stop work, and the holding temperature of food in inner bag is stabilized in to the second temperature.Wherein, the second temperature is a preset temperature higher than the first temperature, and its temperature value can be a preferably temperature value of food heat insulation effect that can make insulation in inner bag, can be positioned at the arbitrary temp value of three insulation shelves.But generally, the second temperature and the first temperature are all positioned at same insulation shelves, but that the second temperature and the first temperature are all positioned at the second insulation shelves effect is more outstanding.
Can find out from the course of work of heater, under insulation pattern and when Heating Zone Temperature is less than or equal to the first default temperature threshold, predetermined keeping temprature curve comprises two stages:
First stage, the Heating Zone Temperature that temperature detecting unit detects from entering keeping warm mode of the Heating Zone Temperature in inner bag is risen to the second heating-up temperature;
Second stage, by constant the Heating Zone Temperature in inner bag second heating-up temperature that remains on.
By adopting the heat preserving mode in the present embodiment, the insulation pattern control heater of selecting according to user is incubated the food holding in inner bag according to predetermined keeping temprature curve, can meet the insulation demand of difference in functionality, according to the situation of outside input and electric cooker inside, holding temperature is dynamically set, thereby has solved electric cooker of the prior art and cannot dynamically arrange according to inside and outside situation the problem of holding temperature.
Fig. 5 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention one.As shown in Figure 5, in the moment that is 0 in temperature retention time, temperature detecting unit detects the Heating Zone Temperature in inner bag, and feeds back to control module 90.If control module 90 detects when electric cooker temperature is greater than a certain preset temperature (as 65 DEG C), control module 90 is controlled heater and according to the keeping temprature curve of curve D, the food holding in inner bag is incubated, and is finally stabilized in middle temperature shelves in a relatively low temperature; If control module 90 detects when electric cooker temperature is less than or equal to a certain preset temperature (as 65 DEG C), control module 90 is controlled heater and according to the keeping temprature curve of curve E, the food holding in inner bag is incubated, and is finally stabilized in middle temperature shelves in a relatively high temperature.And the course of work of heater describes in detail in Fig. 4, is not described in detail at this.
Fig. 6 shows the electric cooker heat preserving method flow chart of the embodiment of the present invention two.As shown in Figure 6, when for after selecting the first heating mode to heat, the heat preserving method of electric cooker comprises:
S201, control module receives user's selected first heating mode from multiple predetermined heat patterns.
Particularly, the heating mode that control module is inputted by operating unit 10 according to user, heats the food holding in inner container of electric cooker.And control module is second subinterval of first subinterval of corresponding first insulation shelves, corresponding second insulation shelves and three subinterval of corresponding three insulation shelves in input by predetermined temperature interval division according to user.
Wherein, under the first heating mode, its solution content high (can obviously see moisture) after heating function completes, as congee, soup, boiling, Yoghourt, stew etc.
S203, temperature detecting unit obtains the Heating Zone Temperature in inner bag.
S205, when the corresponding operation of the first heating mode completes and when Heating Zone Temperature is less than or equal to the second default temperature threshold, control module control heater is started working, and number of times or predetermined time based on predetermined carry out the first cyclic process.
Particularly, the first cyclic process comprises:
The work of control module control heater, makes Heating Zone Temperature rise to the 3rd heating-up temperature; In the time that Heating Zone Temperature is heated to the 3rd heating-up temperature by heater, the heating of control module control heater stop; In the time that Heating Zone Temperature drops to the 4th heating-up temperature, control module control heater is started working.Wherein, the 3rd heating-up temperature is positioned at the first insulation shelves, and the 4th heating-up temperature is positioned at the second insulation shelves.
In the present embodiment, operation corresponding to the first heating mode complete and inner bag in Heating Zone Temperature drop to after a certain temperature threshold (as being equal to or less than 65 DEG C), control module 90 is controlled heater work, makes fluctuation back and forth between two default temperature values of rice cooker kettle temperature.
Can find out from the course of work of heater, under the first heating mode, predetermined keeping temprature curve is the curve of cyclical fluctuations fluctuating back and forth between two temperature values.
And, in the present embodiment, in the time that control module control heater is carried out corresponding operation, determine the default insulation amount M1 under this operator scheme, and determine the correction insulation amount M2 in the time that operation corresponding to the first heating mode completes.Correspondingly, control module is in conjunction with default insulation amount M1 and revise insulation amount M2, set the parameter such as heating power size and heating input time of maximum of T max1, minimum of a value Tmid1, the heater of fluctuation, just can more accurately control heating unit and carry out corresponding heating operation according to given parameter.Wherein, default insulation amount M1 adopts while carrying out operation corresponding to the first heating mode, and the food in inner bag characterizes from predetermined sample temperature to the required time that seethes with excitement.Here, characterize and refer to that default insulation amount, to relevant to the required time that seethes with excitement from predetermined sample temperature, reflects by the time or with the numerical value of time correlation.Default insulation amount M1 can be when carrying out operation corresponding to the first heating mode, the numerical value of the food in inner bag from predetermined sample temperature to the required time that seethes with excitement; Or can hold operation corresponding to the first heating mode by row time, characterize from predetermined sample temperature to the relevant numerical value of the required time that seethes with excitement to the food in inner bag.
And when revising insulation amount M2 and adopting the corresponding operation of the first heating mode to complete, in predetermined amount of time, temperature slippage characterizes, when revising insulation amount M2 and can be the corresponding operation of the first heating mode and completing, the numerical value of the Heating Zone Temperature slippage in predetermined amount of time in inner bag; Or can complete by the corresponding operation of the first heating mode time, characterize to the numerical value that in predetermined amount of time, temperature slippage is relevant.As, when setting predetermined sample temperature and being 40 degrees Celsius, the food in inner bag from 40 DEG C to the required time that seethes with excitement be 20 minutes, predetermined insulation amount is 20; And if Heating Zone Temperature in inner bag is within predetermined time (as 2 hours), temperature slippage is 10 DEG C, revising insulation amount M2 is 10.
Simultaneously, in the present embodiment, in order to prevent the excessive taste of food that affects of temperature slippage, in the time that the Heating Zone Temperature slippage in inner bag in predetermined amount of time has exceeded certain value, control module stops timing, and according to the default insulation amount M1 under this operator scheme, maximum modified insulation amount M2max, set the parameter such as heating power size and heating input time of maximum of T max1, minimum of a value Tmid1, the heater of fluctuation, just can more accurately control heating unit and carry out corresponding heating operation according to given parameter.Wherein, maximum modified insulation amount M2max is the numerical value of default maximum temperature slippage.After as the first heating mode, corresponding operation completes, enter before insulation pattern, detect that the Heating Zone Temperature in inner bag is 98 DEG C, (in 2 hours) its Heating Zone Temperature drops to and is less than a certain temperature threshold (as 65 DEG C) within the predetermined time, and maximum modified insulation amount is 33 (98-65).
In the present embodiment, while judging default insulation amount M1, also can be before heating mode completes, according to various other feedback informations (as weight, volume etc.), judge the insulation amount that follow-up insulating process need to be used, and be not limited to temperature, default insulation amount M1 can be when carrying out operation corresponding to the first heating mode, characterizes from predetermined sample temperature to relevant various other the feedback informations (as weight, volume etc.) of the required time that seethes with excitement to food in inner bag.Similarly, judge while revising insulation amount M2, can also complete by the corresponding operation of the first heating mode time, relevant to temperature slippage in predetermined amount of time various other feedback information (as weight, volume etc.) values characterize, to obtain the amount of insulation more accurately.
In the present embodiment, draw ambient temperature value from insulation amount and temperature slippage side, the running parameter of synthetic setting heat insulation function, reach the demand being rationally incubated in the situation of different insulation amounts, varying environment temperature, make kettle temperature fluctuation cause cross-ventilation, keep to greatest extent nutrition and the taste of food, avoid the phenomenon of food spoilage after long-time insulation.
Fig. 7 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention two.As shown in Figure 7, illustrate that 1 represents the workspace of the operation of the first heating modes such as carrying out congee, soup, boiling, Yoghourt, stew, carry out at this stepwise heating device the operation that the first heating mode is corresponding.And, obtain default insulation amount M1 in this stage control unit.
And explanation 2 represent operation corresponding to first mode complete after temperature nature decline district, judge and revise insulation amount M2.Illustrate that 3 represent comprehensive default insulation amount M1 and revise insulation amount M2, high-temperature temperature Tmax and the middle Wen WenduT mid of heating power size, power input time and multiple waveforms amplitude is set.
The steps A stage represents to judge to revise after insulation amount to temperature and drops to the time that is less than or equal to 65 DEG C, as dropping to, temperature in 2H is less than or equal to 65 DEG C, this period is zero, and control module is judged to be maximum modified insulation amount M2max immediately, and controls heater and start working.Tmax represents high-temperature temperature, Wen Wendu during Tmid represents.After as the first heating mode, corresponding operation completes, enter before insulation pattern, detect that the Heating Zone Temperature in inner bag is 98 DEG C, (in 2 hours) its Heating Zone Temperature drops to and is less than a certain temperature threshold (as 65 DEG C) within the predetermined time, maximum modified insulation amount is 33, i.e. 98 and 65 difference.
Describe the electric cooker heat preserving method in the time that user selects the second heating mode to heat in detail below in conjunction with Fig. 8.
Select the heat preserving method of the first heating mode similar to user, after user selects the second heating mode to heat, the heat preserving method of electric cooker comprises:
Control module receives user's selected second heating mode from multiple predetermined heat patterns; Temperature detecting unit obtains the Heating Zone Temperature in inner bag; Temperature detecting unit obtains the Heating Zone Temperature in inner bag; When the corresponding operation of the second heating mode completes and when Heating Zone Temperature is less than or equal to the 3rd default temperature threshold, control module control heater is started working, and number of times or predetermined time based on predetermined carry out the second cyclic process, until Heating Zone Temperature is stabilized on predetermined middle Wen Wendu.
Wherein, the heating mode that control module is inputted by operating unit 10 according to user, heats the food holding in inner container of electric cooker.And control module is second subinterval of first subinterval of corresponding first insulation shelves, corresponding second insulation shelves and three subinterval of corresponding three insulation shelves in input by predetermined temperature interval division according to user.Be that control module 90 is controlled between the first insulation shelves, the second insulation shelves, the second insulation shelves and does the fluctuation insulation that temperature amplitude is more and more less.Wherein, under the second heating mode, its solution content low (almost can't see moisture) after heating function completes, as cook, cake etc.
The second cyclic process comprises: the work of control module control heater, makes Heating Zone Temperature rise to ceiling temperature; In the time that Heating Zone Temperature is heated to ceiling temperature by heater, the heating of control module control heater stop; In the time that Heating Zone Temperature drops to lower limit temperature, the work of control module control heater, wherein, the initial value of ceiling temperature is positioned at the first insulation shelves, the initial value of lower limit temperature is positioned at the 3rd insulation shelves, ceiling temperature increases progressively and successively decreases according to predetermined variation amount with cycle-index or time, and lower limit temperature increases progressively and increases progressively according to predetermined variation amount with cycle-index or time.
When number of times based on predetermined is carried out the second cyclic process, control module is carried out the n time the second cyclic process and is comprised:
Judge in the n time the second cyclic process by the predetermined variation amount ceiling temperature Tmax (n) obtaining that successively decreases and whether be greater than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time; When the ceiling temperature Tmax (n) in the n time second cyclic process of obtaining is greater than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as by the predetermined variation amount ceiling temperature Tmax (n) obtaining that successively decreases; When the ceiling temperature Tmax (n) in the n time second cyclic process of obtaining is less than or equal to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, wherein, actual upper bound temperature in the n-1 time the second cyclic process of average temperature value Tmid (n-1) in the n-1 time the second cyclic process and the mean value of actual lower limit temperature, n is more than or equal to 2 and be less than the natural number of pre-determined number.
And control module is carried out the n time the second cyclic process and is also comprised: judge in the n time the second cyclic process whether the lower limit temperature Tmin (n) that increases progressively acquisition by predetermined variation amount is less than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time; When the lower limit temperature Tmin (n) in the n time second cyclic process of obtaining is less than the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as increasing progressively by predetermined variation amount the lower limit temperature Tmin (n) of acquisition; When the lower limit temperature Tmin (n) in the n time second cyclic process of obtaining is greater than or equal to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time, the n time the second cyclic process actual temperature is defined as to the average temperature value Tmid (n-1) in the second cyclic process the n-1 time.
Wherein, in the present embodiment, predetermined variation amount obtains in such a way: obtain the default insulation amount M1 carrying out when the second heating mode, and correction insulation amount M2 when obtaining the second heating mode and completing; Predetermined variation amount C is defined as to the absolute value of the difference of default insulation amount M1 and correction insulation amount M2.If C is zero, be a fixed value (as 2) that is greater than zero to C again assignment.Wherein, default insulation amount M1 adopts while carrying out operation corresponding to the second heating mode, food in inner bag characterizes from predetermined sample temperature to the required time that seethes with excitement, and when correction insulation amount M2 adopts the corresponding operation of the second heating mode to complete, in predetermined amount of time, temperature slippage characterizes.
Wherein, default insulation amount M1 adopts while carrying out operation corresponding to the second heating mode, food in inner bag characterizes from predetermined sample temperature to the required time that seethes with excitement, default insulation amount M1 is while carrying out operation corresponding to the second heating mode, the numerical value of the food in inner bag from predetermined sample temperature to the required time that seethes with excitement; Or can hold operation corresponding to the second heating mode by row time, characterize from predetermined sample temperature to the relevant numerical value of the required time that seethes with excitement to the food in inner bag.And when revising insulation amount M2 and adopting the corresponding operation of the first heating mode to complete, in predetermined amount of time, temperature slippage characterizes, when revising insulation amount M2 and be the corresponding operation of the second heating mode and completing, the numerical value of the Heating Zone Temperature slippage in predetermined amount of time in inner bag; Or can complete by the corresponding operation of the second heating mode time, characterize to the numerical value that in predetermined amount of time, temperature slippage is relevant.As, when setting predetermined sample temperature and being 40 degrees Celsius, the food in inner bag from 40 DEG C to the required time that seethes with excitement be 20 minutes, predetermined insulation amount is 20; And if Heating Zone Temperature in inner bag is within predetermined time (as 2 hours), temperature slippage is 10 DEG C, revising insulation amount M2 is 10.
Similarly, in the present embodiment, in order to prevent the excessive taste of food that affects of temperature slippage, in the time that the Heating Zone Temperature slippage in inner bag in predetermined amount of time has exceeded certain value, control module stops timing, and according to the default insulation amount M1 under this operator scheme, maximum modified insulation amount M2max, set the parameter such as heating power size and heating input time of maximum of T max1, minimum of a value Tmid1, the heater of fluctuation, just can more accurately control heating unit and carry out corresponding heating operation according to given parameter.And predetermined variation amount C is now defined as the absolute value of the difference of default insulation amount M1 and maximum modified insulation amount M2max.If C is zero, be a fixed value (as 2) that is greater than zero to C again assignment.Wherein, maximum modified insulation amount M2max adopts default maximum temperature slippage to characterize.After as the second heating mode, corresponding operation completes, enter before insulation pattern, detect that the Heating Zone Temperature in inner bag is 98 DEG C, (in 2 hours) its Heating Zone Temperature drops to and is less than a certain temperature threshold (as 65 DEG C) within the predetermined time, maximum modified insulation amount is 33, i.e. 98 and 65 difference.
For example, at heater during in operation corresponding to second pattern that executes, electric cooker program detects that within a certain period of time the temperature slippage of (in 2 hours) is as revising insulation amount M2, and its minimum temperature is greater than 65 DEG C within this period, once or its minimum temperature is equal to or less than 65 DEG C within this period, it is maximum modified insulation amount M2max that predetermined temperature variation is set, and stops immediately the timing of this period.
Be the initial ceiling temperature Tmax1 that sets of control module 90, initial in Wen WenduT mid1, initial lower limit temperature Tmin1, power input size and power input time etc. running parameter, control heater work, does the 1st fluctuation and is incubated.After the 1st fluctuation insulation finishes, Tmax1 deducts the high-temperature temperature Tmax2 of predetermined variation amount C as the 2nd fluctuation, and Tmin1 adds the cryogenic temperature Tmin2 of C as the 2nd fluctuation.And Tmax2 is greater than and equals Tmid1, otherwise Tmax2 is Tmid1 with regard to value), Tmin2 is less than and equals Tmid1, otherwise Tmin2 is Tmid1 with regard to value.The mean value of Tmax2 and Tmin2 is as the middle Wen WenduT mid2 of the 2nd fluctuation.In conjunction with parameters such as the power input size of above-mentioned setting and power input times, control heater work, does the 2nd and fluctuate and be incubated.By that analogy, in follow-up multiple fluctuations, its parameter is all set according to the parameter of previous fluctuation.When after the insulation of long period, last holding temperature is stabilized on predetermined temperature T mid.
Principle and the object of setting above-mentioned heating condition are: complete to drop to temperature being equal to or less than after 65 DEG C in function, control heater is started working, and makes temperature fluctuation insulation back and forth between the first insulation shelves, the second insulation shelves, the 3rd insulation shelves of the food holding in electric cooker inner bag.Initial temperature value Tmax1, the Tmin1 of the second cyclic process is as temperature upper limit and the lower limit of first fluctuation insulation.In follow-up multiple fluctuation insulating processes, in conjunction with temperature amplitude variable value C, temperature upper limit is less than the higher limit of previous wave process, lowest temperature value is larger than the lower limit of previous wave process, and temperature upper limit is greater than the middle temperature temperature value that equals previous fluctuation, lowest temperature value is less than or equal to the middle temperature temperature value of previous fluctuation, and the mean value of temperature upper limit and lower limit is as the middle temperature shelves temperature value of this wave process.Because the temperature difference of temperature upper limit and lower limit progressively reduces, the amplitude while fluctuation also progressively reduces, and through repeatedly fluctuating after insulation, middle temperature shelves temperature trends towards a stationary value, and last holding temperature also trends towards stablizing.
Can find out from the course of work of heater, under the second heating mode, predetermined keeping temprature curve is the curve of cyclical fluctuations of decaying gradually.
Fig. 8 shows the keeping temprature curve schematic diagram of the electric cooker of the embodiment of the present invention four.
In Fig. 8, illustrate that 1 represents the rice cooker workspace of function such as cook, judge default insulation amount M1.Illustrate 2 presentation functions complete after temperature nature decline district, judge and revise insulation amount M2.Illustrate that 3 represent comprehensive default insulation amount M1 and revise insulation amount M2, ceiling temperature Tmax1, Tmax2, the Tmax3 etc. of heating power size, power input time and multiple waveforms amplitude, middle Wen Wendu initial value Tmid1 and lower limit temperature Tmin1, Tmin2, Tmin3 etc. are set, and follow-up average temperature value Tmid2, Tmid3 etc. are the mean value of capping temperature and lower limit temperature.Illustrate that 4 represent that final holding temperature is stabilized on middle Wen WenduT mid after long period insulation.
Letter A represents to judge to revise after insulation amount to temperature and drops to the time that is less than or equal to 65 DEG C, as dropping to, temperature in 2H is less than or equal to 65 DEG C, this period is zero, and control module is judged to be maximum modified insulation amount M2max immediately, and controls heater and start working.Tmax1, Tmid1, Tmin1 represent ceiling temperature, average temperature value, the lower limit temperature of the 1st fluctuation, Tmax2, Tmid2, Tmin2 represent the ceiling temperature of the 2nd fluctuation, middle Wen Wendu, lower limit temperature, and Tmax3, Tmid3, Tmin3 represent ceiling temperature, average temperature value, the lower limit temperature of the 3rd fluctuation.
Fig. 9 is electric cooker insulation flow process of the present invention.In Fig. 9, high temperature shelves are the insulation of first shown in previous embodiment shelves, and middle temperature shelves are the insulation of second shown in previous embodiment shelves, and low temperature shelves are the insulation of the 3rd shown in previous embodiment shelves.Concrete process step is as follows:
S1 step: first control module judges that whether rice cooker is at holding state.As at holding state, enter S2 step; If not at holding state, enter S9 step.
S2 step: whether control module decision operation unit 2 has insulation input operation.As do not have, enter S27 step; If any insulation input operation, enter S3 step.
S3 step: carry out before heat insulation function work, first judge whether rice cooker kettle temperature is greater than 65 DEG C.As rice cooker kettle temperature is less than or equal to 65 DEG C, enter S4 step; As rice cooker kettle temperature is greater than 65 DEG C, enter S5 step;
S4 step: in middle temperature temperature range, arrange one relatively high temperature value as middle temperature shelves temperature (as 72 DEG C), and the running parameters such as larger input power and power input time are set, enter S7 and walk.
S5 step: a relatively lower temp value is set in middle temperature temperature range as middle temperature shelves temperature (as 67 DEG C), and the running parameters such as less input power and power input time are set, then enter S6 and walk.
S6 step: control module judges now whether rice cooker kettle temperature is less than or equal to 65 DEG C.As rice cooker kettle temperature is less than or equal to 65 DEG C, enter S7 step; As rice cooker kettle temperature is still greater than 65 DEG C, proceed the judgement of S6 step.
S7 step: enter the insulation of middle temperature shelves, running parameter when insulation is arranged by S4 step or S5 step, controls heater work, makes holding temperature be stabilized in middle Wen Wendu.Enter S8 step.
S8 step: whether control module decision operation unit 2 has the input operation of shutdown.As do not have, continue to enter S7 step; If any, enter S26 step.
S9 step: control module judges that whether rice cooker is at function operation state.As, enter S10 step; If do not existed, enter S27 step.
S10 step: the functions such as control module determines whether to cook, cake.In this way, enter S11 step; If not, enter S18 step.
S11 step: judge default insulation amount M1 cooking, in the process of the function operation such as cake, and enter S12 step.
S12 step: whether the functions such as control module judgement is cooked, cake complete.As unfinished, continue the judgement of S12 step; As complete, enter S13 step.
S13 step: cooking, after the function such as cake completes, control module judges that (in 2 hours) rice cooker kettle temperature slippage is as revising insulation amount M2 within a certain period of time, and the minimum temperature of its decline is greater than 65 DEG C in this period, enter S14 step; Once or its temperature drops to and is less than or equal to 65 DEG C within this period, judges that this temperature slippage is as maximum modified insulation amount M2max, and stop the timing operation of this period, enter S14 step.
S14 step: according to default insulation amount M1 and correction insulation amount M2 or M2max, middle Wen WenduT mid1, the cryogenic temperature Tmin1 in low temperature shelves temperature range in high-temperature temperature Tmax1 in synthetic setting high temperature shelves temperature range, middle temperature shelves temperature range, and power input size and power input time etc. running parameter.And by absolute value poor between M1 and M2 or M2max as temperature amplitude variable value C, if C is zero, be a fixed value (as 2) that is greater than zero to C again assignment.Enter S15 step.
S15 step: control module judges whether rice cooker kettle temperature has been less than or equal to 65 DEG C, as being still greater than 65 DEG C, proceeds the judgement of S15 step; As being less than or equal to 65 DEG C, enter S16 step.
S16 step: the running parameters such as high-temperature temperature Tmax1, middle Wen WenduT mid1, cryogenic temperature Tmin1 and the power input size that control module is set according to S14 step and power input time, control heater work, does the 1st fluctuation and be incubated.After the 1st fluctuation insulation finishes, Tmax1 deducts the high-temperature temperature Tmax2 of C as the 2nd fluctuation, Tmin1 adds the cryogenic temperature Tmin2 of C as the 2nd fluctuation, and Tmax2 is greater than and equals Tmid1 (otherwise Tmax2 is Tmid1 with regard to value), Tmin2 and be less than and equal Tmid1 (otherwise Tmin2 is Tmid1 with regard to value), the mean value of Tmax2 and Tmin2 is as the middle Wen WenduT mid2 of the 2nd fluctuation, in conjunction with parameters such as the power input size of above-mentioned setting and power input times, the work of control heater, does the 2nd fluctuation insulation.By that analogy, in follow-up multiple fluctuations, its parameter is all set according to the parameter of previous fluctuation.When after the insulation of long period, last holding temperature is stabilized on middle temperature shelves temperature T mid.Enter S17 step.
S17 step: whether control module decision operation unit 2 has the input operation of shutdown.As do not have, proceed the fluctuation insulation of S16 step; If any, enter S26 step.
S18 step: the functions such as control module determines whether congee, soup, boiling, Yoghourt, stew.In this way, enter S19 step; If not, enter S27 step.
S19 step: judge default insulation amount M1 at congee, soup, boiling, Yoghourt, in the process of function operation such as stewing, and enter S20 step.
S20 step: control module judge whether congee, soup, boiling, Yoghourt, the function such as stewed complete.As unfinished, continue the judgement of S20 step; As complete, enter S21 step.
S21 step: at congee, soup, boiling, Yoghourt, stew etc. after function completes, control module judges that the rice cooker kettle temperature slippage of (in 2 hours) is within a certain period of time as revising insulation amount M2, and the minimum temperature of its decline is greater than 65 DEG C in this period, enter S22 step; Once or its temperature drops to and is less than or equal to 65 DEG C within this period, judges that this temperature slippage is as maximum modified insulation amount M2max, and stop the timing operation of this period, enter S22 step.
S22 step: according to default insulation amount M1 and correction insulation amount M2 or M2max, middle Wen WenduT mid1 in high-temperature temperature Tmax1 in synthetic setting high temperature shelves temperature range, middle temperature shelves temperature range, and power input size and power input time etc. running parameter.Enter S23 step.
S23 step: control module judges whether rice cooker kettle temperature has been less than or equal to 65 DEG C, as being still greater than 65 DEG C, proceeds the judgement of S23 step; As being less than or equal to 65 DEG C, enter S24 step.
The running parameters such as S24 step: high-temperature temperature Tmax1, the middle Wen WenduT mid1 that control module is set according to S22 step and power input size and power input time, control heater work, do the 1st fluctuation and are incubated.After the 1st fluctuation insulation finishes, the 2nd fluctuation started working, and its parameters is consistent with the 1st fluctuation parameters.By that analogy, in follow-up multiple fluctuations, its parameter is all consistent with the 1st fluctuation parameters, and, in long-time insulating process, control module control rice cooker kettle temperature is fluctuation back and forth between high-temperature temperature Tmax1 and middle Wen WenduT mid1.Enter S25 step.
S25 step: whether control module decision operation unit 2 has the input operation of shutdown.As do not have, proceed the fluctuation insulation of S24 step; If any, enter S26 step.
S26 step: control module detects the shutdown input operation of operating unit 2, controls rice cooker and enters holding state.And above-mentioned in steps in, except at holding state, if once the shutdown input operation of operating unit 2 be detected, control module is just controlled rice cooker and is entered holding state.
S27 step: control module control rice cooker is carried out other operations.After other operations complete, enter S1 step and judge.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
By adopting the heat preserving mode in the above embodiment of the present invention, the insulation pattern control heater of selecting according to user is incubated the food holding in inner bag according to predetermined keeping temprature curve, can meet the insulation demand of difference in functionality, according to the situation of outside input and electric cooker inside, holding temperature is dynamically set, thereby has solved electric cooker of the prior art and cannot dynamically arrange according to inside and outside situation the problem of holding temperature.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an electric cooker heat preserving method, is characterized in that, comprising:
Control module receives user's selected described predetermined heat pattern from multiple predetermined heat patterns;
Temperature detecting unit obtains the Heating Zone Temperature in inner bag;
Described control module receives described Heating Zone Temperature, and is incubated according to predetermined keeping temprature curve according to the described predetermined heat pattern control heater of user's selection,
Wherein, in the time that described predetermined heat pattern is the second heating mode, controls described heater and according to described predetermined keeping temprature curve, the food holding in described inner bag be incubated and comprised:
Be the second subinterval and corresponding the 3rd insulation shelves the 3rd subinterval of the first subinterval of corresponding the first insulation shelves, corresponding the second insulation shelves by predetermined temperature interval division;
When the corresponding operation of described the second heating mode completes and when described Heating Zone Temperature is less than or equal to the 3rd default temperature threshold, described in described control module control, heater is started working, and number of times or predetermined time based on predetermined carry out the second cyclic process, until described Heating Zone Temperature is stabilized on predetermined middle Wen Wendu
Described the second cyclic process comprises:
Heater work described in control module control, makes described Heating Zone Temperature rise to ceiling temperature;
In the time that described Heating Zone Temperature is heated to described ceiling temperature by described heater, heater stop heating described in control module control;
In the time that described Heating Zone Temperature drops to lower limit temperature, heater is started working described in control module control,
Wherein, the initial value of described ceiling temperature is positioned at described the first insulation shelves, the initial value of described lower limit temperature is positioned at described the 3rd insulation shelves, described ceiling temperature increases progressively and successively decreases according to predetermined variation amount with cycle-index or time, and described lower limit temperature increases progressively and increases progressively according to predetermined variation amount with described cycle-index or time.
2. electric cooker heat preserving method according to claim 1, is characterized in that, in the time that described predetermined heat pattern is insulation pattern, control module control heater is incubated and comprises the food holding in described inner bag according to described predetermined keeping temprature curve:
Judge whether described Heating Zone Temperature is greater than the first default temperature threshold;
In the time that described Heating Zone Temperature is greater than described the first default temperature threshold, described control module is controlled described heater and is started working in the time that described Heating Zone Temperature drops to described the first temperature threshold;
In the time that described Heating Zone Temperature is heated to the first heating-up temperature by described heater, heater stop heating described in described control module control,
Wherein, described the first heating-up temperature is greater than described the first default temperature threshold.
3. electric cooker heat preserving method according to claim 2, is characterized in that, heater is also incubated and comprises the food holding in described inner bag according to described predetermined keeping temprature curve described in control module control:
In the time that described Heating Zone Temperature is less than or equal to the first default temperature threshold, heater heating described in described control module control;
In the time that described heater is heated to described Heating Zone Temperature to equal the second heating-up temperature, heater stop heating described in described control module control,
Wherein, described the second heating-up temperature is greater than described the first heating-up temperature.
4. electric cooker heat preserving method according to claim 1, is characterized in that, when the number of times based on predetermined is carried out the second cyclic process, described control module is carried out the n time the second cyclic process and comprised:
Judge in described the n time the second cyclic process by the described predetermined variation amount ceiling temperature Tmax(n obtaining that successively decreases) whether be greater than the average temperature value Tmid(n-1 in the second cyclic process the n-1 time);
As the ceiling temperature Tmax(n in described the n time second cyclic process of obtaining) be greater than the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process), described the n time the second cyclic process actual temperature is defined as by the described predetermined variation amount ceiling temperature Tmax(n obtaining that successively decreases);
As the ceiling temperature Tmax(n in described the n time second cyclic process of obtaining) be less than or equal to the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process), described the n time the second cyclic process actual temperature is defined as to the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process)
Wherein, the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process) be actual upper bound temperature in described the n-1 time the second cyclic process and the mean value of actual lower limit temperature, n is more than or equal to 2 and be less than the natural number of pre-determined number.
5. electric cooker heat preserving method according to claim 4, is characterized in that, described control module is carried out the n time the second cyclic process and also comprised:
Judge the lower limit temperature Tmin(n that increases progressively acquisition in described the n time the second cyclic process by described predetermined variation amount) whether be less than the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process);
As the lower limit temperature Tmin(n in described the n time second cyclic process of obtaining) be less than the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process), described the n time the second cyclic process actual temperature is defined as increasing progressively by described predetermined variation amount the lower limit temperature Tmin(n of acquisition);
As the lower limit temperature Tmin(n in described the n time second cyclic process of obtaining) be greater than or equal to the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process), described the n time the second cyclic process actual temperature is defined as to the average temperature value Tmid(n-1 in described the n-1 time the second cyclic process).
6. according to the electric cooker heat preserving method described in claim 1 or 4 or 5, it is characterized in that, described predetermined variation amount obtains in such a way:
Obtain the default insulation amount of carrying out when described the second heating mode, and correction insulation amount when obtaining described the second heating mode and completing;
Described predetermined variation amount is defined as to the absolute value of the difference of described default insulation amount and described correction insulation amount,
Wherein, described default insulation amount adopts while carrying out operation corresponding to described the second heating mode, and the food in described inner bag characterizes from predetermined sample temperature to the required time that seethes with excitement,
When described correction insulation amount adopts the corresponding operation of described the second heating mode to complete, the temperature slippage in predetermined amount of time characterizes.
7. according to the electric cooker heat preserving method described in claim 1 or 4 or 5, it is characterized in that, in the time that the corresponding operation of described the second heating mode completes, in predetermined amount of time, temperature slippage is lower than default maximum temperature slippage, and described predetermined variation amount obtains in such a way:
Obtain the default insulation amount of carrying out when described the second heating mode, and maximum modified insulation amount when obtaining described the second heating mode and completing;
Described predetermined variation amount is defined as to the absolute value of the difference of described default insulation amount and described maximum modified insulation amount,
Wherein, described maximum modified insulation amount adopts default maximum temperature slippage to characterize.
8. an electric cooker, is characterized in that, comprising:
Operating unit, for receiving user from the selected predetermined heat pattern of multiple predetermined heat patterns;
Temperature detecting unit, for obtaining the Heating Zone Temperature in inner bag;
Control module, is connected with described operating unit and described temperature detecting unit;
Heater, is connected with described control module,
Wherein, described control module receives described predetermined heat pattern and the described Heating Zone Temperature that user selects, be incubated according to predetermined keeping temprature curve according to heater described in the described predetermined heat pattern control of user's selection,
In the time that described predetermined heat pattern is the second heating mode, controls described heater and according to described predetermined keeping temprature curve, the food holding in described inner bag be incubated and comprised:
Be the second subinterval and corresponding the 3rd insulation shelves the 3rd subinterval of the first subinterval of corresponding the first insulation shelves, corresponding the second insulation shelves by predetermined temperature interval division;
When the corresponding operation of described the second heating mode completes and when described Heating Zone Temperature is less than or equal to the 3rd default temperature threshold, described in described control module control, heater is started working, and number of times or predetermined time based on predetermined carry out the second cyclic process, until described Heating Zone Temperature is stabilized on predetermined middle Wen Wendu
Described the second cyclic process comprises:
Heater work described in control module control, makes described Heating Zone Temperature rise to ceiling temperature;
In the time that described Heating Zone Temperature is heated to described ceiling temperature by described heater, heater stop heating described in control module control;
In the time that described Heating Zone Temperature drops to lower limit temperature, heater is started working described in control module control,
Wherein, the initial value of described ceiling temperature is positioned at described the first insulation shelves, the initial value of described lower limit temperature is positioned at described the 3rd insulation shelves, described ceiling temperature increases progressively and successively decreases according to predetermined variation amount with cycle-index or time, and described lower limit temperature increases progressively and increases progressively according to predetermined variation amount with described cycle-index or time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110071406.5A CN102687985B (en) | 2011-03-23 | 2011-03-23 | Electric cooker and heat preservation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110071406.5A CN102687985B (en) | 2011-03-23 | 2011-03-23 | Electric cooker and heat preservation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102687985A CN102687985A (en) | 2012-09-26 |
| CN102687985B true CN102687985B (en) | 2014-08-27 |
Family
ID=46853856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110071406.5A Active CN102687985B (en) | 2011-03-23 | 2011-03-23 | Electric cooker and heat preservation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102687985B (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503504B (en) * | 2014-11-22 | 2017-05-17 | 蚌埠依爱电子科技有限责任公司 | Heating control method capable of reducing temperature fluctuation of cultivation shed |
| CN106308537A (en) * | 2015-06-17 | 2017-01-11 | 佛山市顺德区美的电热电器制造有限公司 | Heat-insulating control method and device of electric cooker and electric cooker |
| CN105078267B (en) * | 2015-09-14 | 2018-07-24 | 浙江苏泊尔家电制造有限公司 | Method for heating and controlling for cooker |
| 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 |
| CN105615619B (en) * | 2015-12-23 | 2017-10-27 | 珠海格力电器股份有限公司 | Cook electrical equipment and its control method and device |
| CN105549414B (en) * | 2016-02-26 | 2018-09-04 | 北京小米移动软件有限公司 | Food heat preserving method and device |
| CN106292792A (en) * | 2016-11-08 | 2017-01-04 | 骆香山 | A kind of SCM Based electric cooker temperature monitoring and control system |
| CN108415310B (en) * | 2017-02-09 | 2022-10-14 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method and device and cooker |
| 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 |
| CN109124289B (en) * | 2017-06-19 | 2020-11-24 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for controlling cooking process, storage medium and cooking utensil |
| CN109124291B (en) * | 2017-06-19 | 2021-02-26 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker, heat preservation control method, heat preservation control device and readable storage medium |
| CN107752721B (en) * | 2017-07-18 | 2020-11-03 | 浙江苏泊尔家电制造有限公司 | Cooking appliance and control method for cooking appliance |
| CN109419312B (en) * | 2017-09-05 | 2021-10-12 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device and reheating method for electric cooking device |
| CN107889286B (en) * | 2017-11-06 | 2021-03-12 | 广东美的厨房电器制造有限公司 | Electric cooker and control method and controller thereof |
| CN110115492B (en) * | 2018-02-05 | 2021-12-17 | 佛山市顺德区美的电热电器制造有限公司 | Cooking machine, control method thereof, and computer-readable storage medium |
| CN110244795A (en) * | 2018-03-08 | 2019-09-17 | 佛山市顺德区美的电热电器制造有限公司 | A kind of reservation control method, equipment and computer storage medium |
| CN108828982A (en) * | 2018-05-30 | 2018-11-16 | 张健 | Intelligent table heating means based on image recognition |
| CN110652189B (en) * | 2018-06-29 | 2022-09-06 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking appliance and control method and device thereof |
| CN109288377B (en) * | 2018-09-25 | 2020-11-10 | 珠海格力电器股份有限公司 | Cooking appliance and control method thereof |
| CN109380996B (en) * | 2018-09-25 | 2020-11-10 | 珠海格力电器股份有限公司 | Cooking utensil and control method thereof |
| CN109431233B (en) * | 2018-09-30 | 2020-11-10 | 珠海格力电器股份有限公司 | Cooking appliance and heat preservation control method and determination method thereof |
| CN111265103B (en) * | 2018-12-04 | 2022-08-02 | 浙江绍兴苏泊尔生活电器有限公司 | Method and device for controlling temperature and cooking appliance |
| CN111281113B (en) * | 2018-12-10 | 2022-04-15 | 浙江苏泊尔家电制造有限公司 | Cooking method for a cooking appliance and cooking appliance |
| CN111281115B (en) * | 2018-12-10 | 2022-04-08 | 浙江苏泊尔家电制造有限公司 | Cooking method for a cooking appliance and cooking appliance |
| CN110974028B (en) * | 2019-11-06 | 2022-09-13 | 宁波方太厨具有限公司 | Display method of cooking device |
| CN111227663A (en) * | 2020-01-14 | 2020-06-05 | 中山舜龙世纪电器有限公司 | Control system of electric stewing pot |
| CN111358305A (en) * | 2020-04-29 | 2020-07-03 | 珠海格力电器股份有限公司 | Electric cooker and control method thereof |
| CN113854925B (en) * | 2021-09-22 | 2023-08-15 | 珠海格力电器股份有限公司 | Water softener and control method thereof, and dish washer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2046718A (en) * | 1935-04-02 | 1936-07-07 | Westinghouse Electric & Mfg Co | Temperature control system |
| KR100216899B1 (en) * | 1994-10-24 | 1999-10-01 | 모리시타 요이찌 | Cooked rice retaining method and cooker rice heat retainer |
| JP3800191B2 (en) * | 2003-03-17 | 2006-07-26 | タイガー魔法瓶株式会社 | Electric rice cooker with bread fermentation mode |
| CN100486450C (en) * | 2005-10-14 | 2009-05-13 | 徐佳义 | Cookery method |
| JP5043723B2 (en) * | 2008-03-07 | 2012-10-10 | パナソニック株式会社 | rice cooker |
| CN101763127B (en) * | 2009-12-16 | 2012-07-04 | 电子科技大学 | Control method of pressure cooker |
-
2011
- 2011-03-23 CN CN201110071406.5A patent/CN102687985B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102687985A (en) | 2012-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102687985B (en) | Electric cooker and heat preservation method thereof | |
| US9310085B2 (en) | Method of conducting at least one cooking process | |
| CN103070607B (en) | Exhaust control method and system for electric heating cooking appliance | |
| CN106388556B (en) | A kind of electric rice cooker heated temprature control method, device and electric cooker | |
| US20200281237A1 (en) | Cooking appliance and control method therefor | |
| CN109793421B (en) | Cooking control method and cooking control device, storage medium and pressure cooking appliance | |
| KR102352988B1 (en) | Control method of cooking appliance, cooking appliance and storage medium | |
| CN105455663B (en) | A kind of method for heating and controlling, device and electric pressure cooking saucepan, electric cooker | |
| CA2789247A1 (en) | Closed loop adaptive control system for cooking appliance | |
| CN109431233B (en) | Cooking appliance and heat preservation control method and determination method thereof | |
| CN102073329A (en) | Automatic accurate temperature controlling technique for foodstuff adding process when cooking congee/soup with computerized electric cooker | |
| CN110118367A (en) | One-touch intelligent cooking gas-cooker | |
| KR20160092887A (en) | Gas detecting apparatus, cooking apparatus and controlling method thereof | |
| CN110448164A (en) | The method of controlling exhaust gas and pressuring cooking utensil of pressuring cooking utensil | |
| CN108535430A (en) | A kind of curing detection module | |
| CA2590109C (en) | Heating systems and methods for a cooking appliance | |
| JP2000058227A (en) | Electric heating device operating method | |
| CN104807050A (en) | Microwave heating control system, microwave heating control method and microwave oven | |
| CN110353469B (en) | Cooking appliance, cooking method and computer storage medium | |
| JP2004261476A (en) | Electric pressure cooker | |
| CN107918422A (en) | The cooking control method and system of electric cooker | |
| JP2013252361A (en) | Cooker | |
| JP6257496B2 (en) | Cooker | |
| CN110013159A (en) | Electric cooker and its control method | |
| CN109662560A (en) | Cooking methods, system, oven and readable storage medium storing program for executing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |