CN105078216A - Stage-by-stage heating control method, stage-by-stage heating controller and electric steamer - Google Patents
Stage-by-stage heating control method, stage-by-stage heating controller and electric steamer Download PDFInfo
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- CN105078216A CN105078216A CN201410206977.9A CN201410206977A CN105078216A CN 105078216 A CN105078216 A CN 105078216A CN 201410206977 A CN201410206977 A CN 201410206977A CN 105078216 A CN105078216 A CN 105078216A
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Abstract
The invention provides a stage-by-stage heating control method, a stage-by-stage heating controller and an electric steamer, wherein the stage-by-stage heating control method is used for the electric steamer. The stage-by-stage heating control method comprises the steps: obtaining a first preset time and a second preset time corresponding to an input heating mode; controlling the electric steamer to heat within the first preset time, and controlling the electric steamer to stop heating within the second preset time. According to the technical scheme of the invention, energy of water vapor can be effectively used by the electric steamer for heating foods, and electric energy is saved; meanwhile, scald caused by high-temperature steam when the electric steamer is opened directly after heating is stopped is avoided.
Description
Technical field
The present invention relates to electric steamer technical field, in particular to a kind of heat stepwise control method, a kind of heat stepwise control device and a kind of electric steamer.
Background technology
Current electric steamer is on the market generally arrange a timing, passes through a firm power to food continuous heating in timing, until the timing arranged terminates, to reach the object of steaming foods.The timing that electric steamer is arranged terminates, and represents that food is cooked, edible, if now user immediately opens pot cover and takes food food, because the vapor (steam) temperature in steamer is higher, easily by the smoked wound of high-temperature steam, in addition, saturated in food steamer high-temperature water vapor also result in the wasting of resources.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is that proposing one effectively can utilize Steam Heating food in electric steamer, prevents the heat stepwise control method of being smoked wound by high-temperature steam simultaneously.
Another object of the present invention is to propose a kind of heat stepwise control device.
Another object of the present invention is to propose a kind of electric steamer.
For achieving the above object, embodiment according to a first aspect of the present invention, proposes a kind of heat stepwise control method, comprising: obtain first Preset Time corresponding with the heating mode of input and the second Preset Time; In described first Preset Time, control described electric steamer and heat, in described second Preset Time, control described electric steamer and stop heating.
Heat stepwise control method according to an embodiment of the invention, heating mode is to having the first Preset Time and the second Preset Time, in the first Preset Time, control electric steamer work simultaneously produce steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoid heating to terminate directly to open pot cover by the smoked wound of high-temperature steam, therefore, with continuous heating in prior art until compared with timing terminates, control the second Preset Time not heat, save electric energy, simultaneously vapor (steam) temperature decline to some extent avoid heating at the end of directly open pot cover by the smoked wound of high-temperature steam.
According to one embodiment of present invention, by described first Preset Time and described second Preset Time and described heating mode corresponding stored, wherein, described first Preset Time that described acquisition is corresponding with the heating mode of input and the concrete steps of described second Preset Time are: the arbitrary described heating mode reading input; Search described first Preset Time corresponding with described heating mode and described second Preset Time.
Heat stepwise control method according to an embodiment of the invention, by by the first Preset Time and the second Preset Time and described heating mode corresponding stored, make when receiving the heating mode of input, first Preset Time corresponding with this heating mode and the second Preset Time can be found fast, simple and easy to do, simultaneously by selecting heating mode can determine the first Preset Time and the second Preset Time, simplify operation.
Certainly, those skilled in the art should be understood that, the method obtaining the first Preset Time and the second Preset Time also has a lot, herein and be not used in concrete restriction, in another embodiment, can by user's free setting first Preset Time and the second Preset Time or the relation set up between the first Preset Time and the second Preset Time, obtaining total heat time can get the first Preset Time and the second Preset Time indirectly.
According to one embodiment of present invention, also comprise, show the heat time of described electric steamer, wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
Heat stepwise control method according to an embodiment of the invention, although electric steamer does not carry out work in the second Preset Time, but the steam in electric steamer still has higher temperature, continue heating in order to utilize the waste heat of high-temperature steam to food avoids user by the smoked wound of high-temperature steam simultaneously, second Preset Time still belongs to the working time (heat time) of electric steamer, by showing the heat time of electric steamer, such as: the residue heat time of the current heating mode of countdown display electric steamer, user is thought, and in the second Preset Time, electric steamer is still in work, and the pot cover of electric steamer can not be opened, user is avoided directly to open pot cover by the smoked wound of high-temperature steam better.
According to one embodiment of present invention, in described first Preset Time, judge whether temperature in described electric steamer and/or vapour concentration are more than or equal to preset value; When the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, control the heating power or the average heating power that reduce described electric steamer.
Heat stepwise control method according to an embodiment of the invention, preset temperature is more than or equal to by vapor (steam) temperature in electric steamer, and/or when in electric steamer, vapour concentration is more than or equal to default steam value, reduce heating power or the average heating power of electric steamer, to control the vapor (steam) temperature in electric steamer and/or the vapour concentration in electric steamer, save energy consumption, improve the efficiency of heating surface of electric steamer, avoid because in electric steamer, vapor (steam) temperature is too high, and/or vapour concentration in electric steamer is larger, a large amount of water vapours takes away a large amount of energy, waste electric energy, and a large amount of water vapours is discharged in kitchen and pollutes kitchen environment.
Specifically, vapor (steam) temperature in electric steamer and/or vapour concentration can by being arranged on temperature sensor on electric steamer inwall and/or vapour concentration sensor detects, certainly, as comparatively preferred embodiment, in the food steamer that also temperature sensor and/or vapour concentration sensor can be arranged on electric steamer and/or in the food steamer of the superiors, to improve the accuracy detecting vapor (steam) temperature in electric steamer and/or vapour concentration.
According to one embodiment of present invention, by the voltage that controls to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or by control inputs to the dutycycle of the control signal of described electric steamer to reduce the average heating power of described electric steamer.
Heat stepwise control method according to an embodiment of the invention, by reducing the voltage inputing to electric steamer, due to power P=UI, voltage U reduces, then power P reduces, and therefore reduces the heating power that voltage directly can reduce electric steamer; By control inputs to the dutycycle of the control signal of described electric steamer, also namely make electric steamer interrupter duty, the average heating power in electric steamer certain hour can be reduced.
Embodiment according to a second aspect of the present invention, proposes a kind of heat stepwise control device, comprising: acquiring unit, for obtaining first Preset Time corresponding with inputting heating mode and the second Preset Time; Control unit, is connected to described acquiring unit, in described first Preset Time, controls described electric steamer and heats, and in described second Preset Time, controls described electric steamer and stops heating.
Heat stepwise control device according to an embodiment of the invention, heating mode is to having the first Preset Time and the second Preset Time, in the first Preset Time, control electric steamer work simultaneously produce steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoid heating to terminate directly to open pot cover by the smoked wound of high-temperature steam, therefore, with continuous heating in prior art until compared with timing terminates, control the second Preset Time not heat, save electric energy, simultaneously vapor (steam) temperature decline to some extent avoid heating at the end of directly open pot cover by the smoked wound of high-temperature steam.
According to one embodiment of present invention, also comprise: memory cell, for heating mode described in corresponding stored and described first Preset Time corresponding with described heating mode and described second Preset Time; Reading unit, for reading the arbitrary described heating mode of input; Search unit, be connected to described memory cell and described reading unit, described first Preset Time corresponding for the heating mode searched with described reading unit reads and described second Preset Time.
Heat stepwise control device according to an embodiment of the invention, by by the first Preset Time and the second Preset Time and described heating mode corresponding stored, make when receiving the heating mode of input, first Preset Time corresponding with this heating mode and the second Preset Time can be found fast, simple and easy to do, simultaneously by selecting heating mode can determine the first Preset Time and the second Preset Time, simplify operation.
Certainly, those skilled in the art should be understood that, the method obtaining the first Preset Time and the second Preset Time also has a lot, herein and be not used in concrete restriction, in another embodiment, can by user's free setting first Preset Time and the second Preset Time or the relation set up between the first Preset Time and the second Preset Time, obtaining total heat time can get the first Preset Time and the second Preset Time indirectly.
According to one embodiment of present invention, also comprise: display unit, show the heat time of described electric steamer, wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
Heat stepwise control device according to an embodiment of the invention, although electric steamer does not carry out work in the second Preset Time, but the steam in electric steamer still has higher temperature, continue heating in order to utilize the waste heat of high-temperature steam to food avoids user by the smoked wound of high-temperature steam simultaneously, second Preset Time still belongs to the working time (heat time) of electric steamer, by showing the heat time of electric steamer, such as: the residue heat time of the current heating mode of countdown display electric steamer, user is thought, and in the second Preset Time, electric steamer is still in work, and the pot cover of electric steamer can not be opened, user is avoided directly to open pot cover by the smoked wound of high-temperature steam better.
According to one embodiment of present invention, also comprise: identifying unit, in described first Preset Time, judge whether temperature in described electric steamer and/or vapour concentration are more than or equal to preset value; Described control unit also for when the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, controls the heating power or the average heating power that reduce described electric steamer.
Heat stepwise control device according to an embodiment of the invention, preset temperature is more than or equal to by vapor (steam) temperature in electric steamer, and/or when in electric steamer, vapour concentration is more than or equal to default steam value, reduce heating power or the average heating power of electric steamer, to control the vapor (steam) temperature in electric steamer and/or the vapour concentration in electric steamer, save energy consumption, improve the efficiency of heating surface of electric steamer, avoid because in electric steamer, vapor (steam) temperature is too high, and/or vapour concentration in electric steamer is larger, a large amount of water vapours takes away a large amount of energy, waste electric energy, and a large amount of water vapours is discharged in kitchen and pollutes kitchen environment.
Specifically, vapor (steam) temperature in electric steamer and/or vapour concentration can by being arranged on temperature sensor on electric steamer inwall and/or vapour concentration sensor detects, certainly, as comparatively preferred embodiment, in the food steamer that also temperature sensor and/or vapour concentration sensor can be arranged on electric steamer and/or in the food steamer of the superiors, to improve the accuracy detecting vapor (steam) temperature in electric steamer and/or vapour concentration.
According to one embodiment of present invention, described control unit also for the voltage by controlling to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or described control unit also for by control inputs to the dutycycle of the control signal of the heating unit of described electric steamer to reduce the average heating power of described electric steamer.
Heat stepwise control device according to an embodiment of the invention, by reducing the voltage inputing to electric steamer, due to power P=UI, voltage U reduces, then power P reduces, and therefore reduces the heating power that voltage directly can reduce electric steamer; By control inputs to the dutycycle of the control signal of described electric steamer, also namely make electric steamer interrupter duty, the average heating power in electric steamer certain hour can be reduced.
Embodiment according to a third aspect of the present invention, proposes a kind of electric steamer, comprising: multiple heating mode selecting arrangement; And the heat stepwise control device according to any one of above-described embodiment.
Electric steamer according to an embodiment of the invention, by adding heat stepwise control device in electric steamer, electric steamer is made in the first Preset Time, to carry out heating produces steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoids heating and terminate directly to open pot cover by the smoked wound of high-temperature steam.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 shows the schematic flow diagram of heat stepwise control method according to an embodiment of the invention;
Fig. 2 shows the schematic diagram of heat stepwise control method idiographic flow according to an embodiment of the invention;
Fig. 3 shows the structural representation of heat stepwise control device according to an embodiment of the invention;
Fig. 4 shows the structural representation of electric steamer according to an embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of heat stepwise control method according to an embodiment of the invention.
As shown in Figure 1, heat stepwise control method according to an embodiment of the invention, comprising: step 102, obtains first Preset Time corresponding with the heating mode of input and the second Preset Time; Step 104, in described first Preset Time, controls described electric steamer and heats, and in described second Preset Time, controls described electric steamer and stops heating.
Heating mode is to having the first Preset Time and the second Preset Time, in the first Preset Time, control electric steamer work simultaneously produce steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoid heating to terminate directly to open pot cover by the smoked wound of high-temperature steam, therefore, with continuous heating in prior art until compared with timing terminates, control the second Preset Time not heat, save electric energy, simultaneously vapor (steam) temperature decline to some extent avoid heating at the end of directly open pot cover by the smoked wound of high-temperature steam.
According to one embodiment of present invention, by described first Preset Time and described second Preset Time and described heating mode corresponding stored, wherein, described first Preset Time that described acquisition is corresponding with the heating mode of input and the concrete steps of described second Preset Time are: the arbitrary described heating mode reading input; Search described first Preset Time corresponding with described heating mode and described second Preset Time.
By by the first Preset Time and the second Preset Time and described heating mode corresponding stored, make when receiving the heating mode of input, first Preset Time corresponding with this heating mode and the second Preset Time can be found fast, simple and easy to do, simultaneously by selecting heating mode can determine the first Preset Time and the second Preset Time, simplify operation.
Certainly, those skilled in the art should be understood that, the method obtaining the first Preset Time and the second Preset Time also has a lot, herein and be not used in concrete restriction, in another embodiment, can by user's free setting first Preset Time and the second Preset Time or the relation set up between the first Preset Time and the second Preset Time, obtaining total heat time can get the first Preset Time and the second Preset Time indirectly.
According to one embodiment of present invention, also comprise, show the heat time of described electric steamer, wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
Although electric steamer does not carry out work in the second Preset Time, but the steam in electric steamer still has higher temperature, continue heating in order to utilize the waste heat of high-temperature steam to food avoids user by the smoked wound of high-temperature steam simultaneously, second Preset Time still belongs to the working time (heat time) of electric steamer, by showing the heat time of electric steamer, such as: the residue heat time of the current heating mode of countdown display electric steamer, user is thought, and in the second Preset Time, electric steamer is still in work, and the pot cover of electric steamer can not be opened, user is avoided directly to open pot cover by the smoked wound of high-temperature steam better.
As one comparatively specific embodiment, the stewing food time (the second Preset Time) is relevant with heating mode, often kind of heating mode presets a fixing stewing food time, and such as: the steamed sweet bun heating mode of electric steamer, presetting the stewing food time is 3min; Steamed spareribs pattern, presetting the stewing food time is 2min, and this stewing food time presets, and not known to user, more effectively prevents from opening pot cover at stewing food phase user.Particularly, such as: when selecting steamed sweet bun heating mode, the heating total time of setting is 30min, then countdown from user has selected heating mode, also i.e. display unit countdown from 30min, but in fact electric steamer has only worked 27min, rear 3min utilizes high-temperature steam to boil in a covered pot over a slow fire food, and electric steamer does not work, but still display 3min countdown, avoid user open pot cover and smoked wound by high-temperature steam.
According to one embodiment of present invention, in described first Preset Time, judge whether temperature in described electric steamer and/or vapour concentration are more than or equal to preset value; When the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, control the heating power or the average heating power that reduce described electric steamer.
Preset temperature is more than or equal to by vapor (steam) temperature in electric steamer, and/or when in electric steamer, vapour concentration is more than or equal to default steam value, reduce heating power or the average heating power of electric steamer, to control the vapor (steam) temperature in electric steamer and/or the vapour concentration in electric steamer, save energy consumption, improve the efficiency of heating surface of electric steamer, avoid because in electric steamer, vapor (steam) temperature is too high, and/or vapour concentration in electric steamer is larger, a large amount of water vapours takes away a large amount of energy, waste electric energy, and a large amount of water vapours is discharged in kitchen and pollutes kitchen environment.
Specifically, vapor (steam) temperature in electric steamer and/or vapour concentration can by being arranged on temperature sensor on electric steamer inwall and/or vapour concentration sensor detects, certainly, as comparatively preferred embodiment, in the food steamer that also temperature sensor and/or vapour concentration sensor can be arranged on electric steamer or in the food steamer of the superiors, to improve the accuracy detecting vapor (steam) temperature in electric steamer and/or vapour concentration.
According to one embodiment of present invention, by the voltage that controls to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or by control inputs to the dutycycle of the control signal of described electric steamer to reduce the average heating power of described electric steamer.
By reducing the voltage inputing to electric steamer, due to power P=UI, voltage U reduces, then power P reduces, and therefore reduces the heating power that voltage directly can reduce electric steamer; By control inputs to the dutycycle of the control signal of described electric steamer, also namely make electric steamer interrupter duty, the average heating power in electric steamer certain hour can be reduced.
Fig. 2 shows the schematic diagram of heat stepwise control method idiographic flow according to an embodiment of the invention.
As shown in Figure 2, for electric steamer, the idiographic flow of heat stepwise control method according to an embodiment of the invention, comprising:
Step 202, electric steamer starts and after selecting heating mode, the heating element heater of electric steamer starts heating with full power.
Step 204, during heating element heater heating with full power, steam generator produces water vapour.
Step 206, steam generator starts there is water vapour after producing water vapour in food steamer.
Step 208, along with the continuous heating of heating element heater, the water vapor concentration in food steamer increases gradually.
Step 210, along with the increase of the water vapor concentration in food steamer, the constant temperature in food steamer rises.
Step 212, judge whether the temperature t in food steamer is more than or equal to preset temperature t1, and/or in food steamer, whether vapour concentration P is more than or equal to default vapour concentration value P1, if t >=t1 and/or P >=P1, then performs step 214, otherwise performs step 204.
Step 214, in food steamer, temperature t is more than or equal to preset temperature t1, and/or when in food steamer, vapour concentration P is more than or equal to default vapour concentration value P1, the main control chip in electric steamer controls the heating power or the average heating power that reduce electric steamer.
Step 216, the heating power of electric steamer reduces, and the quantity of steam that steam generator produces reduces, and the vapour concentration in electric steamer declines, and makes temperature stabilization in electric steamer at preset temperature t1.
Step 218, judges whether the heat time of electric steamer reaches the first preset time T 0, performs step 220, otherwise perform step 204 when the heat time reaches the first preset time T 0.
Step 220, when the heat time reaches the first preset time T 0, heating element heater stops heating, utilizes the waste heat of high-temperature steam to continue heating.
Step 222, through the second Preset Time, heat foods is complete, and prompting user has cooked.
Fig. 3 shows the structural representation of heat stepwise control device according to an embodiment of the invention.
As shown in Figure 3, heat stepwise control device 300 according to an embodiment of the invention, comprising: acquiring unit 302, for obtaining first Preset Time corresponding with inputting heating mode and the second Preset Time; Control unit 304, is connected to described acquiring unit 302, in described first Preset Time, controls described electric steamer and heats, and in described second Preset Time, controls described electric steamer and stops heating.
Heating mode is to having the first Preset Time and the second Preset Time, in the first Preset Time, control electric steamer work simultaneously produce steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoid heating to terminate directly to open pot cover by the smoked wound of high-temperature steam, therefore, with continuous heating in prior art until compared with timing terminates, control the second Preset Time not heat, save electric energy, simultaneously vapor (steam) temperature decline to some extent avoid heating at the end of directly open pot cover by the smoked wound of high-temperature steam.
According to one embodiment of present invention, also comprise: memory cell 306, for heating mode described in corresponding stored and described first Preset Time corresponding with described heating mode and described second Preset Time; Reading unit 308, for reading the arbitrary described heating mode of input; Search unit 310, be connected to described memory cell 306 and described reading unit 308, described first Preset Time corresponding for the heating mode searched with described reading unit 308 reads and described second Preset Time.
By by the first Preset Time and the second Preset Time and described heating mode corresponding stored, make when receiving the heating mode of input, first Preset Time corresponding with this heating mode and the second Preset Time can be found fast, simple and easy to do, simultaneously by selecting heating mode can determine the first Preset Time and the second Preset Time, simplify operation.
Certainly, those skilled in the art should be understood that, the method obtaining the first Preset Time and the second Preset Time also has a lot, herein and be not used in concrete restriction, in another embodiment, can by user's free setting first Preset Time and the second Preset Time or the relation set up between the first Preset Time and the second Preset Time, obtaining total heat time can get the first Preset Time and the second Preset Time indirectly.
According to one embodiment of present invention, also comprise: display unit 312, show the heat time of described electric steamer, wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
Although electric steamer does not carry out work in the second Preset Time, but the steam in electric steamer still has higher temperature, continue heating in order to utilize the waste heat of high-temperature steam to food avoids user by the smoked wound of high-temperature steam simultaneously, second Preset Time still belongs to the working time (heat time) of electric steamer, by showing the heat time of electric steamer, such as: the residue heat time of the current heating mode of countdown display electric steamer, user is thought, and in the second Preset Time, electric steamer is still in work, and the pot cover of electric steamer can not be opened, user is avoided directly to open pot cover by the smoked wound of high-temperature steam better.
According to one embodiment of present invention, also comprise: identifying unit 314, in described first Preset Time, judge whether temperature in described electric steamer or vapour concentration are more than or equal to preset value; Described control unit 304 also for when the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, controls the heating power or the average heating power that reduce described electric steamer.
Preset temperature is more than or equal to by vapor (steam) temperature in electric steamer, and/or when in electric steamer, vapour concentration is more than or equal to default steam value, reduce heating power or the average heating power of electric steamer, to control the vapor (steam) temperature in electric steamer and/or the vapour concentration in electric steamer, save energy consumption, improve the efficiency of heating surface of electric steamer, avoid because in electric steamer, vapor (steam) temperature is too high, and/or vapour concentration in electric steamer is larger, a large amount of water vapours takes away a large amount of energy, waste electric energy, and a large amount of water vapours is discharged in kitchen and pollutes kitchen environment.
Specifically, vapor (steam) temperature in electric steamer and/or vapour concentration can by being arranged on temperature sensor on electric steamer inwall and/or vapour concentration sensor detects, certainly, as comparatively preferred embodiment, in the food steamer that also temperature sensor and/or vapour concentration sensor can be arranged on electric steamer or in the food steamer of the superiors, to improve the accuracy detecting vapor (steam) temperature in electric steamer and/or vapour concentration.
According to one embodiment of present invention, described control unit 304 also for the voltage by controlling to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or described control unit 304 also for by control inputs to the dutycycle of the control signal of described electric steamer to reduce the average heating power of described electric steamer.
By reducing the voltage inputing to electric steamer, due to power P=UI, voltage U reduces, then power P reduces, and therefore reduces the heating power that voltage directly can reduce electric steamer; By control inputs to the dutycycle of the control signal of described electric steamer, also namely make electric steamer interrupter duty, the average heating power in electric steamer certain hour can be reduced.
Fig. 4 shows the structural representation of electric steamer according to an embodiment of the invention.
As shown in Figure 4, electric steamer according to an embodiment of the invention, comprising: multiple heating mode selecting arrangement (not shown); And the heat stepwise control device 300 according to any one of above-described embodiment.
By adding heat stepwise control device 300 in electric steamer, electric steamer is made in the first Preset Time, to carry out heating produces steam with heat food, heating is stopped in second Preset Time, the waste heat of high-temperature steam is utilized to heat food, the high-temperature steam in electric steamer is made to obtain effective utilization, utilize the waste heat of electric steamer high-temperature steam to heat simultaneously, the temperature of high-temperature steam is declined to some extent, avoid heating and terminate directly to open pot cover by the smoked wound of high-temperature steam.
As shown in Figure 4, the operation principle of electric steamer is according to an embodiment of the invention described in detail for steamed sweet bun.First, in electric steamer water tank 402, add a certain amount of water, then put into steamed bun 404, and cover pot cover.Now, user selects steamed sweet bun heating mode, and the heating element heater 406 of electric steamer is started working, and steam raising plant 408 starts to produce water vapour 410, and water vapour 410 concentration increases gradually, and in food steamer 412, temperature raises gradually.When temperature in food steamer 412 is more than or equal to preset temperature (as 98 DEG C), main control chip 414 controls to reduce the heating power of heating element heater 406 or the control inputs PWM (PulseWidthModulation to heating element heater 406, pulsewidth width modulated) dutycycle of signal to reduce the average heating power of heating element heater 406, make temperature in food steamer 412 keep stable and not waste energy.When the heat time of heating element heater 406 reaches the first Preset Time, heating element heater 406 stops heating, within second scheduled time, electric steamer utilizes the waste heat of the high-temperature water vapor 410 in food steamer 412 to continue heating to steamed bun 404, effectively utilize the energy of the water vapour 410 of electric steamer, and in this time period, main control chip 414 control cannot be opened the pot cover of electric steamer or be controlled the countdown display that display unit proceeds the heat time, user is thought, and culinary art does not also complete and can not remove to open pot cover, until reached for second scheduled time, temperature now in food steamer 412 decreases, thus avoid user by the smoked wound of high-temperature steam.
More than be described with reference to the accompanying drawings according to technical scheme of the present invention, by technical scheme of the present invention, make electric steamer can effectively utilize the energy of water vapour to heat food, save electric energy, directly open electric steamer at the end of avoiding heating by the smoked wound of high-temperature steam simultaneously.
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 done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a heat stepwise control method, for electric steamer, is characterized in that, comprising:
Obtain first Preset Time corresponding with the heating mode of input and the second Preset Time;
In described first Preset Time, control described electric steamer and heat, in described second Preset Time, control described electric steamer and stop heating.
2. heat stepwise control method according to claim 1, is characterized in that, also comprise: by described first Preset Time and described second Preset Time and described heating mode corresponding stored,
Wherein, described first Preset Time that described acquisition is corresponding with the heating mode of input and the concrete steps of described second Preset Time are:
Read the arbitrary described heating mode of input;
Search described first Preset Time corresponding with described heating mode and described second Preset Time.
3. heat stepwise control method according to claim 1 and 2, is characterized in that, also comprise: the heat time showing described electric steamer, and wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
4. heat stepwise control method according to claim 1 and 2, is characterized in that, also comprise:
In described first Preset Time, judge whether temperature in described electric steamer and/or vapour concentration are more than or equal to preset value;
When the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, control the heating power or the average heating power that reduce described electric steamer.
5. heat stepwise control method according to claim 4, is characterized in that,
By the voltage that controls to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or by control inputs to the dutycycle of the control signal of described electric steamer to reduce the average heating power of described electric steamer.
6. a heat stepwise control device, for electric steamer, is characterized in that, comprising:
Acquiring unit, for obtaining first Preset Time corresponding with inputting heating mode and the second Preset Time;
Control unit, is connected to described acquiring unit, in described first Preset Time, controls described electric steamer and heats, and in described second Preset Time, controls described electric steamer and stops heating.
7. heat stepwise control device according to claim 6, is characterized in that, also comprise:
Memory cell, for heating mode described in corresponding stored and described first Preset Time corresponding with described heating mode and described second Preset Time;
Reading unit, for reading the arbitrary described heating mode of input;
Search unit, be connected to described memory cell and described reading unit, described first Preset Time corresponding for the heating mode searched with described reading unit reads and described second Preset Time.
8. the heat stepwise control device according to claim 6 or 7, is characterized in that, also comprise:
Display unit, shows the heat time of described electric steamer, and wherein, the heat time of described heating mode equals described first Preset Time and described second Preset Time sum.
9. the heat stepwise control device according to claim 6 or 7, is characterized in that, also comprise:
Identifying unit, in described first Preset Time, judges whether temperature in described electric steamer and/or vapour concentration are more than or equal to preset value;
Described control unit also for when the temperature judged in described electric steamer and/or vapour concentration are more than or equal to described preset value, controls the heating power or the average heating power that reduce described electric steamer.
10. heat stepwise control device according to claim 9, is characterized in that,
Described control unit also for the voltage by controlling to reduce to input to described electric steamer to reduce the heating power of described electric steamer, and/or described control unit also for by control inputs to the dutycycle of the control signal of the heating unit of described electric steamer to reduce the average heating power of described electric steamer.
11. 1 kinds of electric steamers, is characterized in that, comprising:
Heating mode selecting arrangement; And
Heat stepwise control device according to any one of claim 6 to 10.
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