CN103783997B - Electric cooker and control method thereof - Google Patents
Electric cooker and control method thereof Download PDFInfo
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- CN103783997B CN103783997B CN201210435201.5A CN201210435201A CN103783997B CN 103783997 B CN103783997 B CN 103783997B CN 201210435201 A CN201210435201 A CN 201210435201A CN 103783997 B CN103783997 B CN 103783997B
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Abstract
The invention discloses the control method of a kind of electric cooker, described electric cooker includes cooker body and pot lid, it is provided with in steam channel and described steam channel in described pot lid and is provided with depression generator, being provided with heater in described cooker body, described control method comprises the following steps: (a) detects the running status of described depression generator；If b () described depression generator is in normal operating condition, then control described heater to be heated with the first heating mode, if described depression generator is in abnormal operating condition, then control described heater to be heated with the second heating mode, wherein under described second heating mode the heating power of described heater less than the heating power of described heater in the first mode.This control method can improve the foam Anti-spill of electric cooker.The invention also discloses a kind of electric cooker.
Description
Technical field
The present invention relates to the control method of a kind of electric cooker and this electric cooker, particularly relate to a kind of electric cooker with foam Anti-spill and for preventing the control method of the electric cooker of foam overflow.
Background technology
In order to prevent the foam overflow in electric cooker, tradition electric cooker arranges depression generator in the steam channel in pot lid, by this depression generator fast pump, localized low-pressure zone is produced near this depression generator, pressure in this localized low-pressure zone is lower than the pressure in cooker body such that it is able to prevent soup foam overflow in process is cooked and cooked congee to electric cooker.But, the foam Anti-spill of tradition electric cooker still haves much room for improvement.
Summary of the invention
The application is based on inventor to the understanding of following facts and problem and discovery: when depression generator breaks down or runs abnormal (abnormality), electric cooker still can properly functioning with depression generator (normal condition) time computer heating control process and state modulator electric cooker, thus causing foam overflow, reduce the reliability preventing foam overflow of electric cooker.In other words, regardless of the running status of depression generator, the computer heating control process of electric cooker is identical with parameter, thus causing when depression generator breaks down or runs abnormal, produces foam overflow phenomenon.
For this, it is an object of the present invention to propose the control method of a kind of electric cooker, this control method can improve the foam Anti-spill of electric cooker.
Further object is that the electric cooker proposing a kind of foam Anti-spill with improvement.
The control method of the electric cooker of embodiment according to a first aspect of the present invention, described electric cooker includes cooker body and pot lid, it is provided with in steam channel and described steam channel in described pot lid and is provided with depression generator, being provided with heater in described cooker body, described control method comprises the following steps: (a) detects the running status of described depression generator；If b () described depression generator is in normal operating condition, then control described heater to be heated with the first heating mode, if described depression generator is in abnormal operating condition, then control described heater to be heated with the second heating mode, wherein under described second heating mode the heating power of described heater less than the heating power of described heater in the first mode.
The control method of electric cooker according to embodiments of the present invention, before heater begins to warm up, first detect the duty of depression generator, when depression generator is working properly, food is cooked by heater with powerful first heating mode, improves cooking speed；When depression generator exception being detected, food is heated by heater with low power second heating mode, thus avoiding, owing to depression generator is abnormal, still causing that foam too much overflows electric cooker with high-power heating, being substantially improved the anti-spilled effect of foam of electric cooker.
In other words, when depression generator is in normal condition, heater is heating work in the first pattern, can effectively shorten cooking time, improve cooking efficiency, and when depression generator is in abnormality, heater is heating work in a second mode, while ensureing cooking efficiency, prevent foam overflow as far as possible, improve depression generator and be in the foam of electric cooker anti-overflow effect during abnormality.
It addition, the control method of electric cooker according to embodiments of the present invention, it is also possible to there is following additional technical feature:
In some embodiments of the invention, described depression generator is stopped when described depression generator is in abnormal operating condition.
In some embodiments of the invention, described first heating mode includes (b1) and controls described heater and heat with the first heating power P1, until the vapor (steam) temperature Tt >=the first preset temperature T1 at described pot lid place；(b2) control described heater to heat with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 bottom described cooker body, stop described heater and described depression generator, wherein T2 > T1；Described second heating mode includes: (b3) controls described heater and heat with the 3rd heating power P3, until vapor (steam) temperature Tt >=the 3rd preset temperature T3 at described pot lid place；(b4) control described heater to heat with the 4th heating power P4, until cooker body bottom temp Tb >=the 4th preset temperature T4 bottom described cooker body, stop described heater and described depression generator, wherein P3 < P1 and T4 > T3.
In some embodiments of the invention, described control method also includes: detect quantity of food in described cooker body, and described second heating power P2 and described 4th heating power P4 is based on what the quantity of food in described cooker body selected from default heating power.
In some embodiments of the invention, in step (b), described depression generator runs with predetermined cycle of operation, and described predetermined cycle of operation is based on what the quantity of food in described cooker body selected from default cycle of operation.
In some embodiments of the invention, described step (a) carries out with predetermined time interval.
In some embodiments of the invention, described depression generator is fan, when the rotating speed of described fan is within the scope of the first pre-set velocity or described fan revolution in Preset Time is in the first default range of revolution, described fan is in normal operating condition, and when the rotating speed of described fan is within the scope of the second pre-set velocity or described fan revolution in Preset Time is in the second default range of revolution, described fan is in abnormal operating condition.
The electric cooker of embodiment according to a second aspect of the present invention, including: cooker body, it is provided with heater in described cooker body；Pot lid, described pot lid is located in described cooker body and is provided with steam channel in described pot lid, is provided with the depression generator for producing localized low-pressure zone in described steam channel in described steam channel；Running induction apparatus, described operation induction apparatus is located in described pot lid for detecting the running status of described depression generator；And controller, described controller is connected with described heater, described operation induction apparatus and described depression generator respectively and is heated with the first heating mode and controls described heater when described depression generator is in abnormal operating condition being heated with the second heating mode controlling described heater when described depression generator is in normal operating condition, wherein under described second heating mode the heating power of described heater less than the heating power of described heater in the first mode.
Electric cooker according to embodiments of the present invention, when depression generator is in normal condition, controller can control the heater the first heating mode work with relatively high power, thus shortening cooking time, improve cooking efficiency, and when depression generator abnormality, controller controls the heater the second pattern heating work with smaller power, while ensureing cooking efficiency, prevent foam overflow as far as possible, the anti-overflow effect of foam when improving depression generator exception.
It addition, electric cooker according to embodiments of the present invention, it is also possible to there is following additional technical feature:
In some embodiments of the invention, described pot is provided with the upper steam temperature sensor of the vapor (steam) temperature for detecting described pot lid place in covering, be provided with the bottom temp sensor for detecting the cooker body bottom temp bottom described cooker body in described cooker body.
In some embodiments of the invention, under described first heating mode, described controller controls the vapor (steam) temperature Tt >=the first preset temperature T1 that described heater detects until described upper steam temperature sensor with the first heating power P1 heating, and described controller controls described heater and heats with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 that described bottom temp sensor detects, stop described heater and described depression generator, wherein T2 > T1.
In some embodiments of the invention, under described second heating mode, described controller controls described heater and heats with the 3rd heating power P3, until vapor (steam) temperature Tt>=the 3rd preset temperature T3 detected at described pot lid place, and described controller controls described heater and heats with the 4th heating power P4, until cooker body bottom temp Tb>=the 4th preset temperature T4 arrived in described cooker body floor detection, stop described heater and described depression generator, wherein P3<P1 and T4>T3.
In some embodiments of the invention, described controller is additionally operable to detect the quantity of food in described cooker body, described second heating power and described 4th heating power are based on what described quantity of food selected from default heating power, described depression generator runs with predetermined cycle of operation, and described predetermined cycle of operation is based on what the quantity of food in described cooker body selected from default cycle of operation.
In some embodiments of the invention, described depression generator is fan, and described controller judges the running status of described depression generator according to the rotating speed of described fan or revolution in the given time.
In some embodiments of the invention, described operation induction apparatus is integrated on described depression generator.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the flow chart of the control method of electric cooker according to an embodiment of the invention；
Fig. 2 is the flow chart of the control method of electric cooker in accordance with another embodiment of the present invention；With
Fig. 3 is the schematic diagram of electric cooker according to an embodiment of the invention.
Description of reference numerals；
Electric cooker 100；
Cooker body 1, heater 11；
Pot lid 2, steam channel 21, depression generator 22；
Controller 3.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height less than second feature.
The control method of reference Fig. 1-Fig. 3 detailed description electric cooker 100 according to embodiments of the present invention first below.
As shown in Figure 3, electric cooker 100 includes cooker body 1 and pot lid 2, it is provided with in steam channel 21 and steam channel 21 in pot lid 2 and is provided with depression generator 22, depression generator 22 for producing negative pressure in steam channel 21, such as, depression generator 22 in steam channel 21 around depression generator 22 generation negative pressure region.
Here, it is understandable that, term " negative pressure " refers to the pressure lower than the pressure in the foam entered in steam channel 21, and " negative pressure region " refers to that the pressure in this region is lower than the pressure in the foam entered in steam channel 21, and the value of negative pressure generally can be 0.85-1.0 normal atmosphere.
Heater 11 it is provided with in cooker body 1, such as it is arranged on the bottom of cooker body 1, the working method of heater 11 is generally batch (-type), namely within a working cycle, heater 11 is heating work and stopping heating within remaining a period of time within a period of time, wherein the Power Regulation of heater 11 is than the dutycycle for heater heating power, namely accounts for heat time heating time heat time heating time and does not heat the ratio of temporal summation.
With reference to Fig. 1, control method comprises the following steps according to an embodiment of the invention: (a) detects the running status of depression generator 22；If b () depression generator 22 is in normal operating condition, then control heater 11 to be heated with the first heating mode, if depression generator 22 is in abnormal operating condition, then control heater 11 be heated with the second heating mode, wherein under the second heating mode the heating power of heater 11 less than the heating power of heater 11 in the flrst mode.
Specifically, when cooking, first the running status of depression generator 22 is detected, if depression generator 22 is in normal condition, then heater 11 is heated with the first heating mode, and the first heating mode can be understood as normal heating pattern, if the depression generator 22 of detection is in abnormality, then heater 11 is heated with the second heating mode, and wherein under the second heating mode, the heating power of heater 11 is less than the heating power under normal mode.Thus, when depression generator 22 is in abnormality, by reducing the heating power of heater 11, the generation amount of foam can be reduced accordingly, thus being prevented effectively from foam overflow, improving and being under abnormality the anti-spilled effect of the foam of electric cooker at depression generator 22.
Control method according to embodiments of the present invention, before culinary art, first detects the duty of depression generator 22, when depression generator 22 is in normal condition, it is possible to food is cooked by powerful first heating mode, improves cooking speed；When detecting depression generator 22 and being in abnormality, low power second heating mode can be cooked by food, thus avoiding owing to depression generator 22 is in abnormality, still cause that foam too much overflows electric cooker with high-power heating, be substantially improved depression generator 22 and be in the foam of electric cooker anti-spilled effect during abnormality.
In some embodiments of the invention, step (a) carries out with predetermined time interval, for instance the running status of detection depression generator 22 can carry out at interval at regular intervals.Specifically, in the whole process of culinary art, after certain time, such as every 2 minutes, the running status of depression generator 22 can be detected once, is abnormality once state depression generator 22 being detected, then heater 11 will heat with the second heating mode.
More specifically, when first time is detected, if depression generator 22 is in normal condition, then heater 11 heats with the first heating mode, when second time detects after a certain time, if depression generator 22 is in abnormality, then the power reducing heater 11 is heated by heater 11 with the second heating mode.It is understood that the interval of twice detection can be a concrete numerical value set in advance, for instance within every 1 minute or every 2 minutes, can detect once.
Thus, carry out every predetermined time interval by detection pattern is arranged to, then can avoid in cooking process, depression generator 22 damage and heater 11 still before the first heating mode heating corresponding to the normal operating condition of one-time detection, thus further improving the anti-spilled effect of foam that depression generator 22 is under abnormality electric cooker.
Preferably, when depression generator 22 is in abnormal operating condition, depression generator 22 can be stopped.In other words, when depression generator 22 is in abnormal operating condition, can directly control depression generator 22 and quit work.Depression generator 22 can be fan, and the two ways that judge fan be in abnormality is briefly described below.
The first judgment mode: when the rotating speed of fan is within the scope of the first pre-set velocity, then judge that fan is in normal operating condition.First pre-set velocity scope can be in the upper and lower scope of the rated speed of fan, when detecting that the current running speed of fan is within the scope of the first pre-set velocity, can determine whether that fan is in normal condition.When the rotating speed of fan is within the scope of the second pre-set velocity, then judge that fan is in abnormality, wherein the second pre-set velocity scope can be remove the first extraneous range of speeds of pre-set velocity, when detecting that the current running speed of fan is within the scope of the second pre-set velocity, then may determine that fan is in abnormality.
Such as, the rated speed of fan can be 500r/ minute, first pre-set velocity scope can be 500r/ minute ± 50r/ minute, second pre-set velocity scope can be greater than 550r/ minute or less than 450r/ minute, it it is 430r/ minute as worked as rotating speed fan being detected, then can determine whether that fan is in abnormality, when rotating speed fan being detected is 480r/ minute, then can determine whether that fan is in normal condition.Here, it is necessary to explanation, above-mentioned numerical value is merely exemplary, merely to be more fully understood that the present invention.
The second judgment mode: fan revolution in Preset Time then judges that fan is in normal operating condition when being in the first default range of revolution, fan revolution in Preset Time then judges that fan is in abnormal operating condition when being in the second default range of revolution.Such as, for the scheduled time for 1 minute, fan can be 500 1 minute interior rated revolution, so the first default range of revolution can be set to 450-550, and second presets range of revolution can be greater than 550 or less than 450, so in 1 minute, when revolution fan being detected is 430, may determine that fan is in abnormality, when revolution fan being detected is 480, then may determine that fan is in normal condition.
As shown in Figure 2, in some currently preferred embodiments of the present invention, first heating mode includes step (b1) and step (b2), and wherein step (b1) controls heater 11 and heats with the first heating power P1, until the vapor (steam) temperature Tt >=the first preset temperature T1 at pot lid 2 places；Control heater 11 with step (b2) to heat with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 bottom cooker body 1, stop heater 11 and depression generator 22, wherein T2 > T1.Preferably, P2≤P1.Certainly, the present invention is not limited to this, and in other embodiments of the present invention, P2 is also greater than P1.
Specifically, the duty of electric cooker when step (b1) and step (b2) are in normal condition for depression generator 22, now electric cooker can be roughly divided into heating period and boiling stage, heating period correspondence step (b1), boiling stage correspondence step (b2), wherein in the heating period, heater 11 does not work with the first heating power P1 heating and depression generator 22, wherein in the process, compared with the electric cooker not having depression generator in traditional steam channel, can increase by the first heating power P1 or extend the heat time heating time (namely Power Regulation ratio increases) of heater 11.
More specifically, electric cooker 100 according to embodiments of the present invention has depression generator and begins to work when entering boiling stage, thus can avoid at the boiling stage initial stage, owing to heater heating power before is excessive or Power Regulation foam overflow occurs than too high, and then realize to improve heater heating power in the heating period and extending the purpose of heat time heating time.
To extend heat time heating time, one cycle of such as heater is 32 seconds, traditional electric cooker is approximately 20 seconds the heat time heating time of heater under this cycle, Comparatively speaking, according to embodiments of the invention, then the heat time heating time that can control heater is 30 seconds, even for 32 seconds i.e. whole cycle heater all in heating, thus rapid aggregation heat is so that the vapor (steam) temperature Tt at pot lid 2 places is rapidly increased to the first preset temperature T1, subsequently into boiling stage.
After electric cooker 100 enters boiling stage, specifically, heater 11 is not preferably by exceed the second heating power P2 work of the first heating power P1, and depression generator 22 starts in the process, owing to depression generator 22 produces negative pressure region in steam channel 21, therefore after boiling stage foam enters this negative pressure region, owing to the pressure in foam is more than the pressure outside foam, foam breaks after expanding rapidly under pressure differential effect, thus preventing foam from overflowing electric cooker with steam by steam channel 21, thus can be greatly improved the second heating power P2 of boiling stage or extend heat time heating time.
To improve heating power, at boiling stage, second heating power P2 of heater can be tradition electric cooker 1.5-2 times of heater heating power at boiling stage, thus rapid aggregation heat is so that the cooker body bottom temp Tb bottom cooker body is quickly ramped up to the second preset temperature T2, complete cooking process.
In short, when depression generator 22 is in normal condition, the first heating mode includes heating period and boiling stage, the heating power of the heater 11 in two stages can increase or extending heating time, thus shortening cooking time.
As in figure 2 it is shown, the second heating mode includes step (b3) and step (b4), wherein (b3) controls heater 11 and heats with the 3rd heating power P3, until vapor (steam) temperature Tt >=the 3rd preset temperature T3 detected at pot lid 2 places；(b4) control heater 11 to heat with the 4th heating power P4, until cooker body bottom temp Tb >=the 4th preset temperature T4 arrived in cooker body floor detection, stop heater 11 and depression generator 22, wherein P3 < P1, and T4 > T3.Preferably, P4 < P2≤P1, P3 < P2≤P1, P4≤P3.Specifically, above-mentioned steps (b3) is equivalent to the heating period of electric cooker when depression generator 22 is in abnormality, above-mentioned steps (b4) is equivalent to the boiling stage of electric cooker when depression generator 22 is in abnormality, and wherein be in step (b1) and step (b2) operation principle during normal condition with above-mentioned depression generator 22 roughly the same for step (b3) and step (b4).
More specifically, the heating period of electric cooker when depression generator 22 is in abnormality, controller 11 heats with the 3rd heating power P3, until vapor (steam) temperature Tt>=the 3rd preset temperature T3 detected at pot lid 2 places, wherein P3<P1, it is preferably P3<P2≤P1, that is, compare step (b1), the power of heater 11 reduces, thus can reducing the generation amount of foam, thus being prevented effectively from owing to depression generator 22 is in the foam overflow phenomenon that abnormality causes, improving anti-overflow effect.
The boiling stage of electric cooker when depression generator 22 is in abnormality, control heater 11 to heat with the 4th heating power P4, until cooker body bottom temp Tb >=the 4th preset temperature T4, the wherein P3 < P1, and T4 > T3 that arrive in cooker body floor detection.It is preferably P4 < P2≤P1, P3 < P2≤P1, P4≤P3 and T4 > T3, say, that compare step (b2), the power of heater 11 reduces, thus can reducing the generation amount of foam further, thus being prevented effectively from owing to depression generator 22 is in the foam overflow phenomenon that abnormality causes, improving anti-overflow effect, this step stops heater 11 and depression generator 22 after terminating, and completes culinary art.
Due to add depression generator 22 be in abnormality time, reduce the heating power of heater 11, therefore the generation amount of foam is reduced, it is to avoid owing to depression generator 22 is in the foam overflow phenomenon that abnormality causes and then the anti-overflow effect of foam improving electric cooker.
Further, when depression generator is in normal condition, control method also includes quantity of food in detection cooker body 1, and the second heating power P2 and the four heating power P4 is based on what the quantity of food in cooker body 1 selected from default heating power.In cooker body 1, the detection method of quantity of food can have multiple, and detection method three kinds different is described below, it is, of course, understood that the detection method of quantity of food is not limited to following three kind mode in cooker body 1.
Specifically, first method is: in cooker body, 1 quantity of food is based on the time that vapor (steam) temperature Tt rising predetermined temperature experiences, that is, in cooker body 1 quantity of food can according to pot lid 2 places vapor (steam) temperature Tt rising uniform temperature required for time determine, it is understandable that, quantity of food is more big, the time that its vapor (steam) temperature Tt rising predetermined temperature experiences is more long, quantity of food is more few, the time that its vapor (steam) temperature Tt rising predetermined temperature experiences is more short, thus can determine the number of quantity of food grade i. e. amount according to the length of this time.
Second method is: the amplitude that in cooker body, quantity of food is based in the unit interval vapor (steam) temperature Tt and rises, such as vapor (steam) temperature Tt rises how many degree within a certain period of time, size according to ascensional range may determine that the number of quantity of food, in other words, quantity of food is more big, the amplitude that vapor (steam) temperature Tt rises within a certain period of time is relatively more little, quantity of food is more little, the amplitude that vapor (steam) temperature Tt rises within a certain period of time is relatively more big, thus can according to vapor (steam) temperature Tt ascensional range in the unit interval determine quantity of food number.
The third method is: in cooker body, quantity of food is based on the time that vapor (steam) temperature Tt rising unit temperature value experiences and determines, the time that such as rising uniform temperature is such as 10 ° required, length according to this time may determine that the number of quantity of food, in other words, quantity of food is more big, this time is more long, and quantity of food is more little, and this time is more short.
After the number of the quantity of food grade i. e. amount determined in cooker body, the the second heating power P2 or the 4th heating power P4 that are suitable for can be selected from default heating power, to select the second heating power P2's to be sized to example, such as when quantity of food is more, bigger heating power can be selected, when quantity of food is less, it is possible to select less heating power, thus effectively shortening cooking time, energy efficient simultaneously.
Preferably, when depression generator is in normal condition, in step (b), depression generator 22 runs with predetermined cycle of operation, and predetermined cycle of operation is based on what the quantity of food in cooker body 1 selected from default cycle of operation.In other words, in order to ensure the effect that depression generator 22 defoams, simultaneously saves energy, depression generator 22 can according to quantity of food number select the cycle of operation preset.Specifically, quantity of food is more many, under identical heating power, the foam of its generation is also relatively more many, and quantity of food is more few, under identical heating power, the foam of its generation is also relatively more few, therefore can according to quantity of food number select the cycle of operation that depression generator 22 is suitable.
Illustrating for depression generator 22 periodic running below, when quantity of food is bigger, short pattern of optional intermittent time is to ensure the removal effect of foam, and when quantity of food is less, longer pattern of optional intermittent time is with energy efficient as much as possible.It is understandable that, the depression generator 22 of electric cooker can have multiple discontinuous operation pattern, its difference can be only that the length of intermittent time, such as its intermittent time of high-frequency work pattern can very short work even for zero i.e. depression generator 22 always, its intermittent time of low frequency operating mode can be relatively long, and intermediate frequency can be set between high frequency and low frequency operating mode, medium-high frequency, multiple pattern such as medium and low frequency is with the corresponding different intermittent times, thus when the different quantity of food of culinary art, optional suitable mode of operation, while preventing foam overflow, reduce the energy consumption of depression generator 22 to greatest extent, and then reduce the energy consumption of electric cooker.
It should be noted that, above-mentioned for depression generator 22 intermittent duty be only schematic, it is not considered as limiting the invention, it is understandable that, the power that depression generator 22 can also be after power adjustable and corresponding adjustment works always, such as, when quantity of food is bigger, optional depression generator 22 works with bigger power always, and when quantity of food is less, optional depression generator 22 works with less power always, this all will be appreciated that for those skilled in the art.
In some embodiments of the invention, when depression generator 22 is in abnormality, control method according to embodiments of the present invention may also include that quantity of food in detection cooker body 1, and wherein the 4th heating power P4 is based on what the quantity of food in cooker body 1 selected from default heating power.
When depression generator 22 is in abnormality, in detection cooker body, the method for quantity of food has multiple, for instance: in cooker body, quantity of food is based on amplitude that in the time or unit interval that vapor (steam) temperature Tt rising predetermined temperature experiences, vapor (steam) temperature Tt rises or what the time that vapor (steam) temperature Tt rising unit temperature value experiences was determined.Detection method about quantity of food, it is possible to time normal with depression generator 22, in detection cooker body 1, the method for quantity of food is identical, repeats no more here.
The control method of electric cooker according to embodiments of the present invention, when depression generator is normal, heater is heating work in the first pattern, can effectively shorten cooking time, improve cooking efficiency, and when depression generator exception, heater is heating work in a second mode, while ensureing cooking efficiency, prevent foam overflow as far as possible, the anti-overflow effect of foam when improving depression generator exception.
Below with reference to Fig. 3, electric cooker 100 according to embodiments of the present invention is described.
As it is shown on figure 3, electric cooker 100 according to embodiments of the present invention includes cooker body 1, pot lid 2, controller 3 and runs induction apparatus (not shown go out).
nullIt is provided with heater 11 in cooker body 1 and inside has pot chamber for cooking food，Heater 11 may be provided in the bottom of cooker body 1，Pot lid 2 is located in cooker body 1 and is provided with steam channel 21 in pot lid 2，Steam channel 21 has the import communicated with pot chamber and with the outlet communicated outside cooker body for discharging steam，The depression generator 22 for producing localized low-pressure zone in steam channel 21 it is provided with in steam channel 21，Thus when stewing chamber cooking food，The foam produced enters in steam channel 21 from import，Depression generator 22 work produces negative pressuren zone，Pressure in this negative pressure region is less than the pressure in foam，After foam enters negative pressure region，Pressure in foam is more than the pressure outside foam，Foam breaks after expanding rapidly under pressure differential effect，Thus preventing foam from overflowing electric cooker with steam by steam channel 21.
Preferably, depression generator 22 can be fan, and fan is preferably provided in the entrance of steam channel 21, thus the negative pressure region produced during fan work this entrance contiguous, the foam in entrance steam channel 21 thus can be made to break as early as possible, improve the effect preventing foam overflow electric cooker.
Run induction apparatus to be located in pot lid 2 for detecting the running status of depression generator 22.Preferably, run induction apparatus and be integrated on depression generator 22, so can detect the running status of depression generator 22 better, improve accuracy of detection.It is, of course, understood that run induction apparatus also can individually processing and manufacturing, and be located in pot lid 2, be used for detecting the running status of depression generator 22.
Controller 3 is connected with heater 11, operation induction apparatus and depression generator 22 respectively, for according to the running status running the depression generator 22 that induction apparatus detects, controlling, regulate heater 11 and the duty of depression generator 22.Wherein, when depression generator 22 is in normal operating condition, controller 3 control heater 11 be heated with the first heating mode and when depression generator 22 is in abnormal operating condition control heater 22 be heated with the second heating mode, wherein under the second heating mode the heating power of heater 11 less than the heating power of heater 11 in the flrst mode.
Electric cooker according to embodiments of the present invention, when depression generator 22 is in normal condition, controller 3 can control the heater 11 first heating mode work with relatively high power, thus shortening cooking time, improve cooking efficiency, and when depression generator abnormality, controller 3 controls the heater 1 second pattern heating work with smaller power, while ensureing cooking efficiency, prevent foam overflow as far as possible, the anti-overflow effect of foam when improving depression generator exception.
In one embodiment of the invention, pot covers the upper steam temperature sensor being provided with the vapor (steam) temperature for detecting pot lid place in 2, is provided with the bottom temp sensor for detecting the cooker body bottom temp bottom cooker body in cooker body 1.
Under the first heating mode, controller 3 controls heater 11 with the first heating power P1 heating until the vapor (steam) temperature Tt >=the first preset temperature T1 detected in upper steam temperature sensor, and controller 3 controls heater 11 and heats with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 arrived in cooker body floor detection, such as bottom steam temperature sensor detects cooker body bottom temp Tb >=the second preset temperature T2, stop heater 11 and depression generator 22, wherein T2 > T1.Preferably, P2≤P1.Certainly, in other embodiments of the present invention, P2 can also more than P1.
Under the second heating mode, controller 3 controls heater 11 and heats with the 3rd heating power P3, until vapor (steam) temperature Tt >=the 3rd preset temperature T3 detected at pot lid 2 places, the vapor (steam) temperature Tt that such as upper steam temperature sensor detects >=the 3rd preset temperature T3, and controller 3 controls heater 11 and heats with the 4th heating power P4, until cooker body bottom temp Tb >=the 4th preset temperature T4 arrived in cooker body floor detection, such as bottom steam temperature sensor detects cooker body bottom temp Tb >=the 4th preset temperature T4, stop heater 11 and depression generator 22, wherein P3 < P1 and T4 > T3.Optimal way is P4 < P2≤P1, P3 < P2≤P1, P4≤P3, and T4 > T3.
Preferably, controller 3 is additionally operable to the quantity of food in detection cooker body 1, and the second heating power and the 4th heating power are based on what quantity of food selected from default heating power.
Wherein, controller 3 detects the method for the quantity of food in cooker body 1 can be had multiple, illustrates with detection mode three kinds different below, it is, of course, understood that controller 3 detects the method for quantity of food in cooker body 1 is not limited to following three kind mode.
First kind of way is: controller 3 is based on the time required for vapor (steam) temperature Tt rising predetermined temperature, that is, controller 3 can according to pot lid 2 places vapor (steam) temperature Tt rising uniform temperature required for time judge quantity of food number, it is understandable that, quantity of food is more many, the time that its vapor (steam) temperature Tt rising predetermined temperature experiences is more long, quantity of food is more few, the time that its vapor (steam) temperature Tt rising predetermined temperature experiences is more short, thus can determine the size of quantity of food according to the length of this time.
The second way is: controller 3 is based on the amplitude risen of vapor (steam) temperature Tt in the unit interval, such as vapor (steam) temperature Tt rises how many degree within a certain period of time, controller 3 can determine the number of quantity of food according to the size of temperature ascensional range, in other words, quantity of food is more many, the amplitude that vapor (steam) temperature Tt rises within a certain period of time is relatively more little, quantity of food is more little, the amplitude that vapor (steam) temperature Tt rises within a certain period of time is relatively more big, thus controller 3 can according to vapor (steam) temperature Tt ascensional range in the unit interval determine quantity of food number.
The third mode: controller 3 determines quantity of food in described cooker body based on the time required for vapor (steam) temperature Tt rising unit temperature value, the time that such as rising uniform temperature is such as 10 ° required, controller 3 can determine the number of quantity of food according to the length of this time, in other words, quantity of food is more big, this time is more long, and quantity of food is more little, and this time is more short.
After determining the number of quantity of food, controller 3 is based on current foodstuff amount grade, the heater 11 heating power in different phase can be controlled accordingly, that is, second heating power and the 4th heating power based on after the number of current foodstuff amount by the heating power that controller 3 controller is concrete, thus shortening cooking time, improve the anti-spilled effect of foam.Such as, the second heating power P2 is controlled for controller 3, after current foodstuff amount grade determined by controller 3, heater 11 can be controlled and add the food of hot pot intracavity with corresponding second heating power P2, such as when quantity of food is more, the second bigger heating power P2 heating can be selected, when quantity of food is less, it is possible to select the second less heating power P2 heating.
Wherein depression generator runs with predetermined cycle of operation, and predetermined cycle of operation is also based on what the quantity of food in cooker body selected from default cycle of operation.In other words, in order to ensure the effect that depression generator 22 defoams, simultaneously saves energy, depression generator 22 under the first heating mode or the second heating mode can according to quantity of food number select the cycle of operation preset.Specifically, quantity of food is more many, under identical heating power, the foam of its generation is also relatively more many, quantity of food is more few, and under identical heating power, the foam of its generation is also relatively more few, therefore can according to quantity of food number select the cycle of operation that depression generator 22 is suitable, thus in the saves energy to greatest extent that ensures to defoam while effect.
Illustrating for depression generator 22 periodic running below, when quantity of food is bigger, short pattern of optional intermittent time is to ensure the removal effect of foam, and when quantity of food is less, longer pattern of optional intermittent time is with energy efficient as much as possible.It is understandable that, the depression generator 22 of electric cooker can have multiple discontinuous operation pattern, its difference can be only that the length of intermittent time, such as its intermittent time of high-frequency work pattern can very short work even for zero i.e. depression generator 22 always, its intermittent time of low frequency operating mode can be relatively long, and intermediate frequency can be set between high frequency and low frequency operating mode, medium-high frequency, multiple pattern such as medium and low frequency is with the corresponding different intermittent times, thus when the different quantity of food of culinary art, optional suitable mode of operation, while preventing foam overflow, reduce the energy consumption of depression generator 22 to greatest extent, and then reduce the energy consumption of electric cooker.
It should be noted that, above-mentioned for depression generator 22 intermittent duty be only schematic, it is not considered as limiting the invention, it is understandable that, the power that depression generator 22 can also be after power adjustable and corresponding adjustment works always, such as, when quantity of food is bigger, optional depression generator 22 works with bigger power always, and when quantity of food is less, optional depression generator 22 works with less power always, this all will be appreciated that for those skilled in the art.
Preferably, depression generator 22 can be fan, and controller 3 can judge the running status of depression generator 22 according to the rotating speed of fan or revolution in the given time.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, being not considered as limiting the invention, above-described embodiment can be changed when without departing from principles of the invention and objective, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (14)
1. the control method of an electric cooker, described electric cooker includes cooker body and pot lid, is provided with in steam channel and described steam channel and is provided with depression generator, be provided with heater in described cooker body in described pot lid, it is characterized in that, described control method comprises the following steps:
A () detects the running status of described depression generator；
If b () described depression generator is in normal operating condition, then control described heater to be heated with the first heating mode, if described depression generator is in abnormal operating condition, then control described heater to be heated with the second heating mode, wherein under described second heating mode the heating power of described heater less than the heating power of described heater under described first heating mode.
2. control method according to claim 1, it is characterised in that stop described depression generator when described depression generator is in abnormal operating condition.
3. control method according to claim 1 and 2, it is characterised in that:
Described first heating mode includes (b1) and controls described heater and heat with the first heating power P1, until the vapor (steam) temperature Tt >=the first preset temperature T1 at described pot lid place；With
(b2) control described heater to heat with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 bottom described cooker body, stop described heater and described depression generator, wherein T2 > T1；
Wherein step (b2) is after step (b1)；
Described second heating mode includes:
(b3) control described heater to heat with the 3rd heating power P3, until vapor (steam) temperature Tt >=the 3rd preset temperature T3 at described pot lid place；With
(b4) control described heater to heat with the 4th heating power P4, until cooker body bottom temp Tb>=the 4th preset temperature T4 bottom described cooker body, stop described heater and described depression generator, wherein P3<P1, and T4>T3；
Wherein step (b4) is after step (b3).
4. control method according to claim 3, it is characterized in that, also include: detect the quantity of food in described cooker body, and described second heating power P2 and described 4th heating power P4 is based on what the quantity of food in described cooker body selected from default heating power.
5. control method according to claim 1, it is characterized in that, in step (b), described depression generator runs with predetermined cycle of operation, and described predetermined cycle of operation is based on what the quantity of food in described cooker body selected from default cycle of operation.
6. control method according to claim 1, it is characterised in that described step (a) carries out with predetermined time interval.
7. control method according to claim 1, it is characterized in that, described depression generator is fan, when the rotating speed of described fan is within the scope of the first pre-set velocity or described fan revolution in Preset Time is in the first default range of revolution, described fan is in normal operating condition, and when the rotating speed of described fan is within the scope of the second pre-set velocity or described fan revolution in Preset Time is in the second default range of revolution, described fan is in abnormal operating condition.
8. an electric cooker, it is characterised in that including:
Cooker body, is provided with heater in described cooker body；
Pot lid, described pot lid is located in described cooker body and is provided with steam channel in described pot lid, being provided with the depression generator for producing localized low-pressure zone in described steam channel in described steam channel, the value of the negative pressure that described depression generator produces is 0.85-1.0 normal atmosphere；
Running induction apparatus, described operation induction apparatus is located in described pot lid for detecting the running status of described depression generator；With
Controller, described controller is connected with described heater, described operation induction apparatus and described depression generator respectively and is heated with the first heating mode and controls described heater when described depression generator is in abnormal operating condition being heated with the second heating mode controlling described heater when described depression generator is in normal operating condition, wherein under described second heating mode the heating power of described heater less than the heating power of described heater under described first heating mode.
9. electric cooker according to claim 8, it is characterized in that, described pot is provided with the upper steam temperature sensor of the vapor (steam) temperature for detecting described pot lid place in covering, be provided with the bottom temp sensor for detecting the cooker body bottom temp bottom described cooker body in described cooker body.
10. electric cooker according to claim 9, it is characterized in that, under described first heating mode, described controller controls the vapor (steam) temperature Tt >=the first preset temperature T1 that described heater detects until described upper steam temperature sensor with the first heating power P1 heating, after this, and described controller controls described heater and heats with the second heating power P2, until the cooker body bottom temp Tb >=the second preset temperature T2 that described bottom temp sensor detects, stop described heater and described depression generator, wherein T2 > T1.
11. electric cooker according to claim 10, it is characterized in that, under described second heating mode, described controller controls described heater and heats with the 3rd heating power P3, until vapor (steam) temperature Tt>=the 3rd preset temperature T3 detected at described pot lid place, after this, and described controller controls described heater and heats with the 4th heating power P4, until cooker body bottom temp Tb>=the 4th preset temperature T4 arrived in described cooker body floor detection, stop described heater and described depression generator, wherein P3<P1, and T4>T3.
12. electric cooker according to claim 11, it is characterized in that, described controller is additionally operable to detect the quantity of food in described cooker body, described second heating power and the 4th heating power are based on what described quantity of food selected from default heating power, described depression generator runs with predetermined cycle of operation, and described predetermined cycle of operation is based on what the quantity of food in described cooker body selected from default cycle of operation.
13. electric cooker according to claim 8, it is characterised in that described depression generator is fan, described controller judges the running status of described depression generator according to the rotating speed of described fan or revolution in the given time.
14. electric cooker according to claim 8, it is characterised in that described operation induction apparatus is integrated on described depression generator.
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| CN108720579A (en) * | 2018-03-28 | 2018-11-02 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking appliance and exhaust control method thereof |
| CN110859517B (en) * | 2018-08-27 | 2021-08-20 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance control method and device and cooking appliance |
| CN110870658B (en) * | 2018-08-31 | 2021-12-21 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance control method and cooking appliance |
| CN112120527B (en) * | 2019-06-25 | 2022-10-21 | 浙江苏泊尔家电制造有限公司 | Control method of cooking appliance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202790A (en) * | 1997-06-13 | 1998-12-23 | 松下电器产业株式会社 | Electric rice cooker |
| CN101518409A (en) * | 2009-03-27 | 2009-09-02 | 美的集团有限公司 | Electric cooking appliance and heating control method thereof |
| JP2011120865A (en) * | 2009-11-13 | 2011-06-23 | Zojirushi Corp | Cooker and cooking method of the same |
| CN201879497U (en) * | 2010-08-11 | 2011-06-29 | 九阳股份有限公司 | Soybean milk machine with self-checking function |
| CN102599808A (en) * | 2011-11-21 | 2012-07-25 | 美的集团有限公司 | Electric cooker with function of preventing foam from overflowing and preventing method thereof |
| CN202919893U (en) * | 2012-11-02 | 2013-05-08 | 美的集团股份有限公司 | Electric rice cooker |
-
2012
- 2012-11-02 CN CN201210435201.5A patent/CN103783997B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202790A (en) * | 1997-06-13 | 1998-12-23 | 松下电器产业株式会社 | Electric rice cooker |
| CN101518409A (en) * | 2009-03-27 | 2009-09-02 | 美的集团有限公司 | Electric cooking appliance and heating control method thereof |
| JP2011120865A (en) * | 2009-11-13 | 2011-06-23 | Zojirushi Corp | Cooker and cooking method of the same |
| CN201879497U (en) * | 2010-08-11 | 2011-06-29 | 九阳股份有限公司 | Soybean milk machine with self-checking function |
| CN102599808A (en) * | 2011-11-21 | 2012-07-25 | 美的集团有限公司 | Electric cooker with function of preventing foam from overflowing and preventing method thereof |
| CN202919893U (en) * | 2012-11-02 | 2013-05-08 | 美的集团股份有限公司 | Electric rice cooker |
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