The control method and cooking appliance of a kind of cooking applianceTechnical field
The present invention relates to kitchen appliance technical field, and in particular to the control method and cooking appliance of a kind of cooking appliance.
Background technology
People using cooking appliances such as electric cooker, electric pressure cooking saucepans when being cooked, in many cases, it is necessary to improve in potPressure so as to raise boiling point reach lifting temperature purpose, particularly in the higher region of height above sea level.For electric pressure cooking saucepanSpeech, it is by sealing come adherence pressure, but also just because of its good sealing, causes aqueous water can not form vaporization nucleus, fromAnd be difficult to produce effective boiling, cause food not enough " tasty ".On the other hand, the electric cooker with micro-pressure function is developed,It passes through the control of minute-pressure ball valve, it is possible to achieve liquid also can effectively seethe with excitement while lifting boiling point.However, existing minute-pressure electricityThe problem of rice cooker is easily overflowed when pressure release also be present, influences Consumer's Experience.
The content of the invention
Based on above-mentioned present situation, it is a primary object of the present invention to the control method for providing a kind of cooking appliance and corresponding steamingBoiler has, and it, which can be realized, ensures liquid boiling in Different Altitude region and do not spill over, and enters interest so as to be advantageous to improve foodSense, and improve Consumer's Experience.
To achieve the above object, the technical solution adopted by the present invention is as follows：
According to the first aspect of the invention, a kind of control method of cooking appliance, wherein, the cooking appliance, which is provided with, to be let outPressure valve, the control method include step：
S10, the control cooking appliance are heated, until entering boosting, packing stage；
S20, obtain current altitude boiling point Tf；
S30, after packing stage terminates, confirm cooking appliance internal temperature T<In the case of Tf, the steaming is controlledBoiler tool enters the pressure release stage；
Wherein, step S10 and step S20 order is in no particular order.
Preferably, step S10 further comprises：During controlling the cooking appliance to be heated, boiling is judgedWhether the internal temperature T of utensil reaches the first preset value, in the case where confirming that the internal temperature T reaches the first preset value,The cooking appliance is controlled to enter boosting, packing stage.
Preferably, in step S10, the internal temperature T is sensed using temperature sensing device, wherein, the temperature sensing device is setOn the utensil lid of cooking appliance.
Preferably, the span of first preset value is 80-100 DEG C.
Preferably, in step S20, obtain current altitude boiling point Tf the step of include：
Into after packing stage, current altitude is determined according to the temperature increment Δ T that can reach inside the cooking applianceBoiling point Tf；Wherein, the temperature increment Δ T predefines according to the pressure increment Δ P of the cooking appliance at work, describedThe pressure increment Δ P of cooking appliance at work is the Opening pressure of the relief valve.
Preferably, step S20 further comprises step：
Maximum temperature value Tmax described in S210, record packing stage inside cooking appliance, and according to formula Tf=Tmax- Δs T determines current altitude boiling point Tf.
Preferably, the span of the temperature increment Δ T is 0-14 DEG C.
Preferably, the span of the temperature increment Δ T is 4-8 DEG C.
Preferably, the relief valve is minute-pressure ball valve, and the minute-pressure ball valve includes valve opening and is placed on the valve openingSpheroid.
Preferably, pressure increment Δ P determines according to formula mg=Δs P*S, wherein, m is the quality of the spheroid, SFor the cross-sectional area of the valve opening.
Preferably, in step S30, after the pressure release stage is entered, the minute-pressure ball valve is controlled to act, by the spheroid from instituteState and removed on valve opening.
According to the second aspect of the invention, a kind of cooking appliance, the cooking appliance are provided with relief valve, wherein, it is describedCooking appliance is controlled using foregoing control method at work.
Preferably, the cooking appliance has Baoshang pattern, and when the Baoshang pattern is selected, the cooking appliance is pressedWorked according to foregoing control method.
Preferably, the utensil lid of the cooking appliance is provided with temperature sensing device, for sensing the inside of the cooking applianceTemperature；
And/or the relief valve is minute-pressure ball valve, the minute-pressure ball valve includes valve opening and the ball being placed on the valve openingBody.
The control method and cooking appliance of the cooking appliance of the present invention can be realized with the case of pressure there is soup in potEffect boiling, while realization can seethe with excitement and not spill in Different Altitude region, food on the one hand can be made more tasty so as to improveThe mouthfeel of food, on the other hand contribute to lift Consumer's Experience.
Brief description of the drawings
Hereinafter with reference to accompanying drawing to the control method of cooking appliance according to the present invention and the side of being preferable to carry out of cooking applianceFormula is described.In figure：
Fig. 1 is the flow chart according to a kind of control method of the cooking appliance of preferred embodiment of the present invention；
Fig. 2 is the flow chart according to the control method of the cooking appliance of another preferred embodiment of the present invention；
Fig. 3 is the flow chart according to the preferred embodiment that current altitude boiling point method is determined in the present invention；
Fig. 4 is the working state schematic representation of minute-pressure ball valve in cooking appliance of the invention；
Fig. 5 is the pressure release view of minute-pressure ball valve in cooking appliance of the invention.
Embodiment
To ensure that the cooking appliances such as micropressure pot, electric cooker, electric pressure cooking saucepan, electric steamer can be realized in the case of band pressureLiquid is effectively seethed with excitement in pot, and the boiling of soup is particularly realized when performing Baoshang function, improves the tasty mouthfeel of food, of the inventionCooking appliance is provided with relief valve, and the relief valve has certain Opening pressure, the pressure inside cooking appliance compared toExternal pressure (such as atmospheric pressure) raises a certain amount, i.e. when the elevated amount is equal to the Opening pressure, the relief valve will be beatenOpen to realize pressure release, so as to by inside cooking appliance pressure rise in value the Δ P (pressure that can reach compared to external pressureIncrementss) maintain under the Opening pressure.That is, the Opening pressure of the relief valve can be used as the cooking appliance at workInternal pressure increment Δ P.
Usually, cooking appliance have apparatus body, the interior pot being placed in apparatus body and for cover apparatus body andThe utensil lid of interior pot, the relief valve are typically mounted on the utensil lid.
As a kind of preferred exemplary, the relief valve is minute-pressure ball valve, the schematic structure of minute-pressure ball valve as shown in figure 4,It includes valve opening 1 and the spheroid 2 being placed on the valve opening 1, wherein mainly by the quality of spheroid 2 and the cross-sectional area of valve opening 1Determine its Opening pressure.
Certainly, relief valve can also use other types of structure, for example with valve element and for biasing the valve elementThe structure of spring, wherein by mainly determining its Opening pressure by the bias force of spring.
By taking minute-pressure ball valve as an example, in the case where cooking appliance is in closing lid state, when cooking appliance performs such as Baoshang or cooksEtc. function when, it produces steam by heating in pot, and steam can run into spheroid 2 and be obstructed when discharging, with heating processContinue, for the constantly accumulation of the steam in pot so as to produce pressure, the accumulation lifting of pressure will cause the elevation of boiling point.
Still by taking minute-pressure ball valve as an example, in cooking appliance of the invention, due to using physical seal between spheroid 2 and valve opening 1Mode, i.e., sealing is contacted with the aperture of valve opening by the edge of spheroid, when steam pressure is sufficiently large, steam that spheroid 2 is subject toPressure can balance each other with its gravity, and now pot inner pressure no longer rises, and kettle temperature reaches maximum.During this, due toIt is to contact sealing between spheroid 2 and valve opening 1 so that steam can discharge in a limited degree, cause so that producing vaporization nucleus in potBoiling, it is real now with being seethed with excitement under conditions of pressure, cooking appliance internal temperature and can be lifted and ensure that soup effectively rolls, fromAnd make food nutrition Matter Composition be easier to come out, and food is more tasty.In this process, spheroid 2 and valve opening 1Position relationship is as shown in figure 4, spheroid 2 is suspended on valve opening 2, and liquid will not overflow in pot.Thus the cooking appliance of the present invention may be usedRealize the effect with pressure boiling.
The relation of boiling point and pressure increment Δ P is generally as shown in table 1 under condition of normal pressure：
The relation of boiling point and pressure increment Δ P under the condition of normal pressure of table 1
And then according to the relation of table 1, the relation between pressure increment Δ P and temperature increment Δ T can be obtained, such as the institute of table 2Show：
The pressure of table 2 is rised in value and the value-added relation of temperature
Therefore, the temperature that can be predefined according to pressure increment Δ P can reach inside the cooking appliance increasesIt is worth Δ T, namely the lifting capacity of boiling point, the temperature difference that can be lifted compared to height above sea level boiling temperature in other words.And it is possible to determine, no matter how the height above sea level boiling point of the cooking appliance position changes, that is, no matter how external pressure changes, instituteIt is changeless to state temperature increment Δ T, and it is determined by the Opening pressure of relief valve.Then, height above sea level boiling point is being determinedIn the case of, just can rise in value the actual boiling point that Δ T determines to reach inside cooking appliance according to the temperature；Conversely,In the case of the actual boiling point that can reach inside cooking appliance is determined, then the Δ T that can be rised in value according to the temperature determines seaPull out boiling point.
The micro-pressure electric rice cooker generally use temperature control of prior art, packing stage terminate after for example by means of the suction of magnetic corePower removes spheroid 2, away from the top of valve opening 1, as shown in Figure 5 so that valve opening 1 is in completely unlimited state, willSteam drains, and gastronomical process terminates.Generally, the termination condition of packing stage is a certain default to detect that kettle temperature drops toTemperature, such as 99 DEG C (being less than common 1 DEG C of boiling point), but deposited if using fixed temperature to control for High aititude region (such as Kunming)In problem, under 99 DEG C of temperature value, larger pressure still have in pot, with extraneous pressure differential in 30kPa or so, is now tiedBeam packing stage, removes spheroid, pressure burst can be caused to let out, and a large amount of soups is sprayed to the external world, influences Consumer's Experience.
For such case, the invention provides a kind of control method of cooking appliance, as shown in figure 1, the controlling partyMethod includes step：
S10, the control cooking appliance are heated, preferably continuous heating, until entering boosting, packing stage；
S20, obtain current altitude boiling point Tf；
S30, after packing stage terminates, confirm cooking appliance internal temperature T<In the case of Tf, the steaming is controlledBoiler tool enters the pressure release stage；
Wherein, step S10 and step S20 order is in no particular order.
In the control method of the present invention, Tf can be preset given value or specific measured value.Wherein, obtainCurrent altitude boiling point Tf is taken to use any suitable method, including be the preset height above sea level boiling point of cooking appliance in the prior art(for example, in the case where specifying using area or specified height above sea level for cooking appliance, height above sea level boiling point is known quantity).
That is, in the control method of the present invention, the termination condition of packing stage substitutes fixed end temp using variable,Pass through contacting for end temp and current altitude boiling point, it is ensured that pressurize terminates to enter back into pressure release when rear pot inner pressure increment is zeroIn the stage, now removing spheroid will not also cause soup excessive, so as to both ensure that effective boiling of soup, improve the mouth of foodSense, can avoid soup excessive, and do not influenceed completely by height above sea level again.
Preferably, as shown in Fig. 2 step S10 further comprises：In the process for controlling the cooking appliance to be heatedIn, judge whether the internal temperature T (being preferably temperature of top) of cooking appliance reaches the first preset value, confirming the internal temperatureIn the case that degree T reaches the first preset value, the cooking appliance is controlled to enter boosting, packing stage.
As the criterion of internal temperature, the first preset value may be configured as close to boiling temperature value, for example, normal conditionsUnder be set below the boiling temperature value in most domestic region, its span is 80 DEG C -100 DEG C, wherein 90 DEG C is moreSuitable temperature value.
That is, during cooking appliance is heated, it can in real time detect and judge kettle temperature (preferably top layer temperatureDegree) whether reach the level close to boiling temperature value, if reaching, control cooking appliance enters boosting, packing stage, otherwise,It can continue to control cooking appliance continuous heating.
Preferably, in step S10, the internal temperature T is sensed using temperature sensing device, wherein, the temperature sensing device is setPut on the utensil lid of cooking appliance.
Preferably, obtain the method for height above sea level boiling point can utilize aforementioned temperature increment Δ T and pressure increment Δ P relation comeRealize.Specifically, in step S20, obtain current altitude boiling point Tf the step of include：
Into after packing stage, current altitude is determined according to the temperature increment Δ T that can reach inside the cooking applianceBoiling point Tf；Wherein, the temperature increment Δ T predefines according to the pressure increment Δ P of the cooking appliance at work, describedThe pressure increment Δ P of cooking appliance at work is the Opening pressure of the relief valve.
Preferably, as shown in figure 3, step S20 further comprises step：
Maximum temperature value Tmax described in S210, record packing stage inside cooking appliance, and according to formula Tf=Tmax- Δs T determines current altitude boiling point Tf, wherein, Δ T is the temperature increment in cooking appliance.Wherein, in the unlatching of relief valveIn the case that pressure determines, for example, in the case where the spheroid mass and valve opening size of minute-pressure ball valve are certain, Δ T is fixed value.
That is, determine current altitude boiling point Tf using following method for optimizing in the present invention：Detect packing stage boiling vesselMaximum temperature value Tmax inside tool, such as kettle temperature can be detected by foregoing temperature sensing device, and each detected value is recorded,So that it is determined that peak therein, is designated as Tmax, then boiling temperature value Tf=Tmax- Δ T, in formula, Δ T is relevant pressure in potThe temperature increment rised in value corresponding to Δ P.
For minute-pressure ball valve, the pressure increment Δ P is mainly related to spheroid mass m, in other no bias knotsIn the case of structure, physical relationship balances each other for the gravity of spheroid 2 with the steam pressure (showing as buoyancy) born, its equilibrium relationFormula is：Mg=Δ P*S, S is effective contact area of outer surface of spheroid and steam in formula, such as the cross-sectional area equal to valve opening 1,Then, after the structure determination of minute-pressure ball valve, pressure increment Δ P is exactly determination amount known to one.On the other hand, due to pressureRise in value Δ P and temperature increment Δ T relation of power is also to determine, as shown in table 2, can be tabled look-up determination according to the pressure Δ P that rises in valueTemperature increment Δ T.
Then, cooking appliance of the invention just has the Δ T values determined, therefore, specifically controlled when completion is designedIn processing procedure sequence, directly current altitude boiling point Tf can be determined using Δ T values.
Preferably, the span of the temperature increment Δ T is 0-14 DEG C, preferably 4-8 DEG C.According to result of the test, temperatureDegree increment Δ T is more preferably 6 DEG C, can achieve the effect that optimal.
Accordingly, pressure increment Δ P general span is 0-70kPa, preferably 20-40kPa, and 30kPa timelinessFruit is optimal.
Preferably, as shown in figure 3, in step S20, step is also included before step S210：
S200, judge whether the dwell time reaches the second preset value, such as not up to, then control the cooking appliance to maintain to addHeat, such as reach, then performed step S210.
Preferably, second preset value can be preset by program or be set by user.For example, for toolThe functional mode of body, such as Baoshang pattern or pattern of cooking, the second different preset values can be set by program in advance, certainly respectivelyUser's site setup can also be allowed, the corresponding dwell time is such as set according to anticipation of the user to the duration and degree of heating and/or food materials species,So as to obtain desired mouthfeel.
As shown in figure 3, after reaching the second preset value in the dwell time, cooking appliance can be controlled to stop heating immediately, hereafter,Whether real-time judge kettle temperature T meets condition T<Tf, as long as not meeting also, then continue waiting for, until after meeting the condition,Control cooking appliance enters the pressure release stage.
Preferably, in step S30, after the pressure release stage is entered, the minute-pressure ball valve can be controlled to act, by the spheroid2 remove from the valve opening 1.For example, magnetic core can be set in the side of minute-pressure ball valve, make magnetic core alignment with the ball in the horizontal directionBody 2.By default, the coil no power of magnetic core, thus spheroid 2 will not be had an impact.When needing pressure release, then make magneticThe coil electricity of core, magnetic core will be removed spheroid 2 by suction from valve opening 1, realize pressure release.After the coil blackout of magnetic core,Magnetic core discharges spheroid 2, and spheroid 2 can automatically reset to the top of valve opening 1.
Based on above-mentioned control method, the second invention of the invention provides a kind of cooking appliance, and the cooking appliance is setRelief valve is equipped with, wherein, the cooking appliance is controlled using foregoing control method at work.
Especially, the cooking appliance has Baoshang pattern, and when the Baoshang pattern is selected, the cooking appliance is pressedWorked according to foregoing control method.And in other mode of operations, such as in the pattern of cooking, then can still use existingControl method work.
Preferably, the utensil lid of the cooking appliance is provided with temperature sensing device, for sensing the inside of the cooking applianceTemperature.
Preferably, the relief valve is minute-pressure ball valve, and the minute-pressure ball valve includes valve opening and is placed on the valve openingSpheroid.
The cooking appliance of the present invention can be polytype boiling class such as micropressure pot, electric cooker, electric pressure cooking saucepan, electric steamerElectrical equipment.
The present invention cooking appliance control method and cooking appliance can realize with the case of pressure in pot soup it is effectiveBoiling, while realization can seethe with excitement and not spill in Different Altitude region, food on the one hand can be made more tasty so as to improve foodThe mouthfeel of thing, on the other hand contribute to lift Consumer's Experience.
The span of multiple parameters is disclosed in the context of the present invention, it will be appreciated that under the premise of reconcilable, such asWithout specified otherwise, the value of corresponding parameter can include the endpoint value of the particular range.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be freeGround combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from the basic of the present inventionIn the case of principle, those skilled in the art can be directed to the various obvious or equivalent modification made of above-mentioned details or replaceChange, be all included in scope of the presently claimed invention.