CN104678831B - Electric cooking pot and its power interruption recovering device and power interruption recovering controlling method - Google Patents

Electric cooking pot and its power interruption recovering device and power interruption recovering controlling method Download PDF

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Publication number
CN104678831B
CN104678831B CN201410467015.9A CN201410467015A CN104678831B CN 104678831 B CN104678831 B CN 104678831B CN 201410467015 A CN201410467015 A CN 201410467015A CN 104678831 B CN104678831 B CN 104678831B
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CN
China
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power
cooking pot
electric cooking
electric
semiconductor
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CN201410467015.9A
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Chinese (zh)
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CN104678831A (en
Inventor
左远洋
周小金
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广东美的厨房电器制造有限公司
美的集团股份有限公司
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Priority to CN201410467015.9A priority Critical patent/CN104678831B/en
Publication of CN104678831A publication Critical patent/CN104678831A/en
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Publication of CN104678831B publication Critical patent/CN104678831B/en

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers

Abstract

The invention discloses a kind of power interruption recovering device of electric cooking pot, it includes:Zero cross detection circuit, the zero cross detection circuit detection is input to the zero cross signal of the electric main of electric cooking pot;Detect the power-off delay circuit of the power-off time of the electric cooking pot;And control circuit, the control circuit is respectively connected with the zero cross detection circuit and the power-off delay circuit, the control circuit judges whether the electric cooking pot powers off according to the zero cross signal, and working condition when judging whether to control the electric cooking pot to return to power-off according to the power-off time of the electric cooking pot when re-powering after the electric cooking pot power-off.The power interruption recovering device can judge the power-off time of electric cooking pot when re-powering, working condition when judging whether to control the electric cooking pot return to power-off according to power-off time, the need for fully meeting user, improve Consumer's Experience.The invention also discloses a kind of electric cooking pot and a kind of power interruption recovering controlling method of electric cooking pot.

Description

Electric cooking pot and its power interruption recovering device and power interruption recovering controlling method
Technical field
The present invention relates to living electric apparatus technical field, more particularly to a kind of power interruption recovering device of electric cooking pot, a kind of tool There are the electric cooking pot and a kind of power interruption recovering controlling method of electric cooking pot of the power interruption recovering device.
Background technology
With the high speed development of electronic technology, the function of electronic micro-wave oven is increasingly enriched, and present micro-wave oven is not only Cooking length of time, firepower can be set, clock, demo mode and more customizing modes can also be set.
But, existing electronic micro-wave oven is upper electric again after power cut-off, is reset upon when electric on computer board first Beginning state.For example, when user is provided with clock, if several seconds of power cut-off suddenly, at this moment reset on computer board after electricity Original state, clock is also initial time, such user just has to reset once, and the use to user brings fiber crops It is tired, influence Consumer's Experience.
In correlation technique, working condition when also thering is micro-wave oven to preserve microwave furnace power-off after a loss of power, in micro-wave oven Working condition during power-off is returned to when re-powering.But, if user is to allow electricity on micro-wave oven again every two days, now microwave If stove returns to working condition during power-off, it is clear that clock be not to, mode of operation may nor what user wanted, It can be made troubles to user.
The content of the invention
The purpose of the present invention is intended at least solve above-mentioned technological deficiency.
Therefore, first purpose of the present invention is to propose a kind of power interruption recovering device of electric cooking pot, can be again The power-off time of electric cooking pot is judged when upper electric, work when judging whether to control the electric cooking pot return to power-off according to power-off time Make state, the need for fully meeting user, improve Consumer's Experience.
Second object of the present invention is to propose a kind of electric cooking pot.Third object of the present invention is to propose one kind The power interruption recovering controlling method of electric cooking pot.
To reach above-mentioned purpose, a kind of power interruption recovering device for electric cooking pot that one aspect of the present invention embodiment is proposed, bag Include:Zero cross detection circuit, the zero cross detection circuit detection is input to the zero cross signal of the electric main of electric cooking pot;Detection institute State the power-off delay circuit of the power-off time of electric cooking pot;And control circuit, the control circuit and zero passage detection electricity Road and the power-off delay circuit are respectively connected with, and whether the control circuit judges the electric cooking pot according to the zero cross signal Power-off, and judged whether to control institute according to the power-off time of the electric cooking pot when re-powering after the electric cooking pot power-off State working condition when electric cooking pot returns to power-off.
The power interruption recovering device of electric cooking pot according to embodiments of the present invention, electricity is input to by zero cross detection circuit detection The zero cross signal of the electric main of cooking pot judges whether electric cooking pot powers off, if it is determined that electric cooking pot power-off, then preserve Working condition during electric cooking pot power-off, and detect that electricity is cooked by power-off delay circuit when being re-powered after the power-off of electric cooking pot Prepare food the power-off time of device, then control circuit to be judged whether to control electric cooking pot to return to according to the power-off time of electric cooking pot Working condition during power-off, for example when power is off between it is shorter when work shape of control circuit control electric cooking pot when returning to power-off State, when power is off between it is longer when the electric cooking pot of control circuit control reset to original state, it is to avoid electric cooking pot short supply interruption is again Need user to reset mode of operation of electric cooking pot etc. after upper electricity, it also avoid electric cooking pot and power off for a long time again after upper electricity Working condition when still returning to original power-off and the puzzlement such as clock disorder for causing, the need for fully meeting user, to use Family is brought conveniently, improves Consumer's Experience.
Wherein, when the power-off time of the electric cooking pot is less than preset time, the control circuit controls the electricity to cook Device of preparing food returns to working condition during power-off;When the power-off time of the electric cooking pot is more than or equal to the preset time, institute Stating control circuit controls the electric cooking pot to reset to original state.
According to one embodiment of present invention, the preset time is set according to the power-off delay circuit.
According to one embodiment of present invention, the power-off delay circuit includes:First metal-oxide-semiconductor, first metal-oxide-semiconductor Drain electrode is connected with default power supply, and the grid of first metal-oxide-semiconductor is connected with the control circuit;Second metal-oxide-semiconductor, described second The drain electrode of metal-oxide-semiconductor is connected with the source electrode of first metal-oxide-semiconductor, and the grid of second metal-oxide-semiconductor is connected with the control circuit;The One triode, the base stage of first triode is connected with the source electrode of second metal-oxide-semiconductor, the emitter stage of first triode Ground connection, the colelctor electrode of first triode is connected with the control circuit;First resistor, one end of the first resistor and institute State default power supply to be connected, the colelctor electrode and the control circuit of the other end of the first resistor respectively with first triode It is connected;First electrochemical capacitor, the positive terminal of first electrochemical capacitor respectively with the source electrode of first metal-oxide-semiconductor and described second The drain electrode of metal-oxide-semiconductor is connected, the negative pole end ground connection of first electrochemical capacitor;Second resistance, the second resistance and described first Electrochemical capacitor is in parallel.
The power-off delay circuit of the embodiment of the present invention is only with several simple discrete components, without increase very great achievement This, and circuit is simple and reliable, also accurately controls preset time.
According to one embodiment of present invention, the control circuit includes:Control chip, the first of the control chip prolongs When pin be connected with the grid of first metal-oxide-semiconductor, the grid of the second delay pin and second metal-oxide-semiconductor of the control chip Extremely it is connected, the 3rd delay pin of the control chip is connected with the colelctor electrode of first triode;First electric capacity, described One end ground connection of one electric capacity, the other end of first electric capacity is connected with the first pin of the control chip;Second electric capacity, institute One end ground connection of the second electric capacity is stated, the other end of second electric capacity is connected with the second pin of the control chip;Crystal oscillator, institute Crystal oscillator is stated to be connected between the other end of the other end of first electric capacity and second electric capacity;3rd resistor, the described 3rd Resistance is in parallel with the crystal oscillator.
According to one embodiment of present invention, the zero cross detection circuit includes:4th resistance, the one of the 4th resistance End is connected with the first end of the electric main;First diode, negative electrode and the electric main of first diode Second end is connected;Optocoupler, the first end of the optocoupler is connected with the other end of the 4th resistance, the second end of the optocoupler with The anode of first diode is connected, the 3rd end ground connection of the optocoupler;5th resistance, one end of the 5th resistance and institute State default power supply to be connected, the other end of the 5th resistance is connected with the 4th end of the optocoupler;6th resistance, the 6th electricity One end of resistance is connected with the other end of the 5th resistance and the 4th end of the optocoupler respectively, the other end of the 6th resistance It is connected with the zero passage detection pin of the control chip;3rd electric capacity, one end and the 6th resistance of the 3rd electric capacity The other end is connected, and the other end of the 3rd electric capacity is grounded after being connected with the 3rd end of the optocoupler.
To reach above-mentioned purpose, a kind of power interruption recovering controlling party for electric cooking pot that another aspect of the present invention embodiment is proposed Method, comprises the following steps:Detection is input to the zero cross signal of the electric main of electric cooking pot;Institute is judged according to the zero cross signal State whether electric cooking pot powers off;If it is determined that the electric cooking pot power-off, then preserve the work of the electric cooking pot when power is off State, and detect that the electricity is cooked by the power-off delay circuit in the electric cooking pot when the electric cooking pot is re-powered The power-off time of device;And judged whether to control the electric cooking pot to return to power-off according to the power-off time of the electric cooking pot When working condition.
According to one embodiment of present invention, when the power-off time of the electric cooking pot is less than preset time, institute is controlled State working condition when electric cooking pot returns to power-off;When the power-off time of the electric cooking pot is more than or equal to the preset time When, control the electric cooking pot to reset to original state.
Also, the preset time is set according to the power-off delay circuit.
The power interruption recovering controlling method of electric cooking pot according to embodiments of the present invention, first detection are input to electric cooking pot The zero cross signal of electric main judges whether electric cooking pot powers off, if it is determined that electric cooking pot power-off, then preserve electric cooking pot Working condition during power-off, and when detecting the power-off of electric cooking pot by power-off delay circuit when electric cooking pot is re-powered Between, working condition when then being judged whether to control the electric cooking pot return to power-off according to the power-off time of electric cooking pot, example As it is shorter between when power is off when the electric cooking pot of control return to power-off when working condition, when power is off between it is longer when control electricity cook Device of preparing food resets to original state, needs user to reset electric cooking pot so as to avoid electric cooking pot short supply interruption from going up again after electricity Mode of operation etc., it also avoid the working condition when power-off for a long time of electric cooking pot still returns to original power-off after upper electricity again And clock disorder caused etc. is perplexed so that the need for electric cooking pot fully meets user, bring conveniently, improve to user Consumer's Experience.
In addition, embodiments of the invention also proposed a kind of electric cooking pot, the power-off that it includes above-mentioned electric cooking pot is extensive Apparatus for coating.
The electric cooking pot of the embodiment of the present invention, when can re-power after a loss of power by judge the length of power-off time come Working condition when judgement returns to power-off or reset to original state, for example when power is off between it is shorter when return to power-off When working condition, when power is off between it is longer when reset to original state, so as to avoid short supply interruption from needing to use after upper electricity again Family resets mode of operation etc., it also avoid powering off again working condition when still returning to original power-off after upper electricity for a long time And clock disorder caused etc. is perplexed, the need for fully meeting user, brought conveniently to user, improve Consumer's Experience.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments Substantially and be readily appreciated that, wherein:
Fig. 1 is the circuit diagram of the power interruption recovering device of the electric cooking pot according to the embodiment of the present invention;
Fig. 2 is the flow chart of the power interruption recovering controlling method of the electric cooking pot according to the embodiment of the present invention;
Fig. 3 is the control flow chart according to the micro-wave oven of one embodiment of the invention when power is off;And
Fig. 4 is the control flow chart when re-powering according to the micro-wave oven of one embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This Outside, the invention provides various specific techniques and material example, but those of ordinary skill in the art can be appreciated that The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection or the connection of two element internals, can To be to be joined directly together, it can also be indirectly connected to by intermediary, for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term.
With reference to the accompanying drawings come the power interruption recovering device of the electric cooking pot that describes to propose according to embodiments of the present invention, with this The power interruption recovering controlling method of the electric cooking pot of power interruption recovering device and electric cooking pot.
Fig. 1 is the circuit diagram of the power interruption recovering device of the electric cooking pot according to the embodiment of the present invention.As shown in figure 1, The power interruption recovering device of the electric cooking pot includes:Zero cross detection circuit 10, power-off delay circuit 20 and control circuit 30.
Wherein, zero cross detection circuit 10 detects the zero cross signal for the electric main for being input to electric cooking pot, power cut off delay electricity The power-off time of the electric cooking pot is detected on road 20, and control circuit 30 is distinguished with zero cross detection circuit 10 and power-off delay circuit 20 It is connected, control circuit 30 judges whether the electric cooking pot powers off according to the zero cross signal, if it is determined that electric cooking pot power-off, Working condition when then preserving electric cooking pot power-off, and according to the electric cooking pot when being re-powered after the electric cooking pot power-off Working condition of power-off time when judging whether to control the electric cooking pot return to power-off.
According to one embodiment of present invention, when the power-off time of the electric cooking pot is less than preset time, control electricity Working condition when road 30 controls the electric cooking pot to return to power-off;When the power-off time of the electric cooking pot is more than or equal to institute When stating preset time, control circuit 30 controls the electric cooking pot to reset to original state, for example, remove what electric cooking pot was set Mode of operation, clock etc..
Wherein, the preset time is set according to power-off delay circuit 20.That is, preset time is power cut off delay The delay time of circuit 20, for example, can be 10 seconds.
Therefore say, in an embodiment of the present invention, the electric main that control circuit 30 is detected according to zero cross detection circuit 10 Zero cross signal judge whether electric cooking pot powers off, if it is determined that electric cooking pot power-off, then control the control core in circuit 30 Piece triggering zero passage is interrupted, and working condition when preserving electric cooking pot power-off for example preserves clock, the arrange parameter and state of user Variable, display interface etc..Control circuit 30 when electric cooking pot is re-powered, by detecting power-off delay circuit 20, can obtain To the power-off time of electric cooking pot, if power-off time is less than preset time such as 10 seconds, control circuit 30 controls the electricity to cook Device of preparing food returns to working condition during power-off;If power-off time is more than or equal to preset time such as 10 seconds, control circuit control The electric cooking pot resets to original state.
Specifically, according to one embodiment of present invention, as shown in figure 1, power-off delay circuit 20 includes:First metal-oxide-semiconductor M1, the second metal-oxide-semiconductor M2, the first triode Q1, first resistor R1, the first electrochemical capacitor EC1 and second resistance R2.
Wherein, the first metal-oxide-semiconductor M1 drain electrode is connected with default power supply such as 5V power supply, the first metal-oxide-semiconductor M1 grid with Circuit 30 is controlled to be connected, the second metal-oxide-semiconductor M2 drain electrode is connected with the first metal-oxide-semiconductor M1 source electrode, the second metal-oxide-semiconductor M2 grid and control Circuit 30 processed is connected;First triode Q1 base stage is connected with the second metal-oxide-semiconductor M2 source electrode, and the first triode Q1 emitter stage connects Ground, the first triode Q1 colelctor electrode is connected with control circuit 30;First resistor R1 one end and default power supply such as 5V electricity Source is connected, and the first resistor R1 other end is connected with the first triode Q1 colelctor electrode and control circuit 30 respectively;First electrolysis Drain electrode of the electric capacity EC1 positive terminal respectively with the first metal-oxide-semiconductor M1 source electrode and the second metal-oxide-semiconductor M2 is connected, the first electrochemical capacitor EC1 Negative pole end ground connection, second resistance R2 is in parallel with the first electrochemical capacitor EC1.It follows that the power cut off delay of the embodiment of the present invention Circuit is only with several simple discrete components, and without increasing very big cost, and circuit is simple and reliable, can also accurately control Preset time processed.
Also, as shown in figure 1, control circuit 30 includes:Control chip 301, the first electric capacity C1, the second electric capacity C2, crystal oscillator OSC1 and 3rd resistor R3.First delay pin Delay_1 of control chip 301 is connected with the first metal-oxide-semiconductor M1 grid, controls Second delay pin Delay_2 of chip 301 is connected with the second metal-oxide-semiconductor M2 grid, the 3rd delay pin of control chip 301 Delay_3 is connected with the first triode Q1 colelctor electrode;First electric capacity C1 one end ground connection, the first electric capacity C1 other end and control First pin Xout of coremaking piece 301 is connected, the second electric capacity C2 one end ground connection, the second electric capacity C2 other end and control chip 301 the second pin Xin is connected;Crystal oscillator OSC1 be connected to the first electric capacity C1 the other end and the second electric capacity C2 the other end it Between, 3rd resistor R3 is in parallel with crystal oscillator OSC1.
That is, being made up of the base of electric cooking pot electric capacity C1, C2 and crystal oscillator OSC1, resistance R3 and control chip 301 This SCM system, the underlying hardware run as the control program of electric cooking pot.Power-off delay circuit by metal-oxide-semiconductor M1, M2 with And triode Q1, resistance R1, resistance R2, electrochemical capacitor EC1 composition, when electric cooking pot is re-powered, it can be controlled by detecting 3rd delay pin Delay_3 of coremaking piece 301 signal obtains the power-off time of electric cooking pot.
Wherein, can be by setting resistance R2 resistance and electrochemical capacitor EC1 capacitance to set preset time i.e. power-off to prolong When circuit 30 delay time such as 10 seconds.The calculation formula of delay time is:T=R2*EC1*Ln (5/0.7).If for example, The signal for detecting the 3rd delay pin Delay_3 is low level, then judges that power-off time is less than delay time such as 10 seconds.
According to one embodiment of present invention, as shown in figure 1, zero cross detection circuit 10 includes:4th resistance R4, the one or two Pole pipe D1, optocoupler IC1, the 5th resistance R5, the 6th resistance R6 and the 3rd electric capacity C3.Wherein, the 4th resistance R4 one end is with exchanging Civil power AC first end such as live wire L is connected, the second end such as zero of the first diode D1 negative electrode and the electric main AC Line N is connected;Optocoupler IC1 first end 1 is connected with the 4th resistance R4 other end, optocoupler IC1 the second end 2 and the first diode D1 anode is connected, and optocoupler IC1 the 3rd end 3 is grounded, the 5th resistance R5 one end and the power supply of the default power supply such as 5V It is connected, the 5th resistance R5 other end is connected with optocoupler IC1 the 4th end 4;6th resistance R6 one end respectively with the 5th resistance The R5 other end is connected with optocoupler IC1 the 4th end 4, the 6th resistance R6 other end and the zero passage detection pin of control chip ZERO is connected, and the 3rd electric capacity C3 one end is connected with the 6th resistance R6 other end, the 3rd electric capacity the C3 other end and optocoupler IC1 The 3rd end 3 be connected after be grounded.The zero cross detection circuit 10 is used for detecting whether electric cooking pot connects electric main AC, connects and hands over When flowing civil power, control chip 301 is square wave by the zero passage detection pin ZERO zero cross signals detected, if electric cooking pot breaks When electric, control chip 301 is high level by the zero passage detection pin ZERO zero cross signals detected.
In an embodiment of the present invention, electric cooking pot can be micro-wave oven.When micro-wave oven works in normal power-up, control Chip 301 is high level by " Delay1 " signal of the first delay pin Delay_1 outputs, and the first metal-oxide-semiconductor M1 of control is turned on, And it is low level to export " Delay2 " signal by the second delay pin Delay_2, the second metal-oxide-semiconductor M2 of control is turned off, and 5V's is pre- If power supply persistently charges to electrochemical capacitor EC1, the voltage for keeping electrochemical capacitor EC1 is 5V.
After micro-wave oven is powered off suddenly, zero cross signal is changed into high level and the zero passage of trigger control chip 301 from square-wave signal Interrupt, working condition of the control chip 301 when preserving microwave furnace power-off before+5V voltages drop to resetting voltage;And micro-wave oven is disconnected Metal-oxide-semiconductor M1, M2 are immediately turned off when electric first, electrochemical capacitor EC1 is only discharged by resistance R2, electrochemical capacitor EC1 tension discharge To 0.7V time t=R2*EC1*Ln (5/0.7), here it is delay time is preset time.It is understood that in this hair In bright embodiment, delay time can be adjusted by adjusting R2, EC1 parameter.
When micro-wave oven is re-powered, and after the I/O mouths initialization of control chip, control chip 301 prolongs by first When pin Delay_1 output " Delay1 " signal be low level, control the first metal-oxide-semiconductor M1 shut-offs prevent that electrochemical capacitor EC1 is different Often charging;Then, control chip 301 is high level, control by " Delay2 " signal of the second delay pin Delay_2 outputs Second metal-oxide-semiconductor M2 is turned on.Wherein, control chip 301 detects the 3rd delay pin Delay_3's within 10 milliseconds of times " Delay3 " signal, if now power-off time is less than delay time, i.e. the voltage of electrochemical capacitor EC1 is also greater than 0.7V, then three Pole pipe Q1 is still in saturation conduction state, and " Delay3 " signal is low level, and control chip detects low level and judges disconnected The electric time is less than 10 seconds, can't detect and then judges that power-off time is more than or equal to 10 seconds.
After control chip 301 judges the power-off time of micro-wave oven, control chip 301 then controls micro- according to power-off time Ripple stove automatically restores to corresponding state.If power-off time is less than 10 seconds, the control micro-wave oven of control chip 301 recovers power-off When working condition, otherwise, just control micro-wave oven reset to original state.
In summary, the power interruption recovering device of the electric cooking pot of the embodiment of the present invention is by detecting the length of power-off time, Whether to return to the working condition during power-off when judging that electric cooking pot power-off is re-powered.If the very of short duration example of power-off time Such as 1 second~1 minute, then working condition when controlling the electric cooking pot to return to power-off;If power-off time is long, control electricity Cooking pot resets to original state.Therefore, for there is electric main tripping operation, user changes the of short duration power-off feelings such as power outlet Condition, user is brought conveniently, while Consumer's Experience is more then without being configured again to electric cooking pot such as micro-wave oven to user It is good.Also, 6 simple discrete components are used only in power-off delay circuit, circuit is simple, and capacitor charge and discharge is controlled using metal-oxide-semiconductor Path, delay time can be accurate within 1 second, i.e. the decision threshold of power-off time can be as accurate as within 1 second, control accuracy It is high.
The power interruption recovering device of electric cooking pot according to embodiments of the present invention, electricity is input to by zero cross detection circuit detection The zero cross signal of the electric main of cooking pot judges whether electric cooking pot powers off, if it is determined that electric cooking pot power-off, then preserve Working condition during electric cooking pot power-off, and detect that electricity is cooked by power-off delay circuit when being re-powered after the power-off of electric cooking pot Prepare food the power-off time of device, then control circuit to be judged whether to control electric cooking pot to return to according to the power-off time of electric cooking pot Working condition during power-off, for example when power is off between it is shorter when work shape of control circuit control electric cooking pot when returning to power-off State, when power is off between it is longer when the electric cooking pot of control circuit control reset to original state, it is to avoid electric cooking pot short supply interruption is again Need user to reset mode of operation of electric cooking pot etc. after upper electricity, it also avoid electric cooking pot and power off for a long time again after upper electricity Working condition when still returning to original power-off and the puzzlement such as clock disorder for causing, the need for fully meeting user, to use Family is brought conveniently, improves Consumer's Experience.
Fig. 2 is the flow chart of the power interruption recovering controlling method of the electric cooking pot according to the embodiment of the present invention.As shown in Fig. 2 The power interruption recovering controlling method of the electric cooking pot comprises the following steps:
S1, detection is input to the zero cross signal of the electric main of electric cooking pot.
S2, judges whether electric cooking pot powers off according to zero cross signal.
S3, if it is determined that electric cooking pot power-off, then metal-oxide-semiconductor M1, the M2 closed immediately in power-off delay circuit, and preserve electricity Working condition when cooking pot is powered off, and when electric cooking pot is re-powered, examined by the power-off delay circuit in electric cooking pot Survey the power-off time of electric cooking pot.
S4, working condition when judging whether to control the electric cooking pot return to power-off according to the power-off time of electric cooking pot.
Wherein, when the power-off time of the electric cooking pot is less than preset time, the electric cooking pot is controlled to return to disconnected Working condition when electric;When the power-off time of the electric cooking pot is more than or equal to the preset time, the electricity culinary art is controlled Device resets to original state, such as mode of operation, clock that the electric cooking pot of removing is set.
Also, the preset time is set according to the power-off delay circuit.That is, preset time is to be powered off prolonging When circuit delay time, for example can be 10 seconds.
In an embodiment of the present invention, above-mentioned electric cooking pot can be micro-wave oven.
Specifically, according to one embodiment of present invention, as shown in figure 3, the control flow of micro-wave oven when power is off includes:
S301, triggering zero passage is interrupted.That is, when micro-wave oven is powered off suddenly, detecting zero cross signal and being changed into high electricity Flat, triggering zero passage is interrupted, into zero passage interruption subroutine.
S302, is first shut off metal-oxide-semiconductor M1, M2, then preserves clock.
S303, preserves the parameter of user's setting and the state variable of micro-wave oven.
S304, preserves the display interface of micro-wave oven.
S305, returns to main program.
, it is necessary to be first shut off metal-oxide-semiconductor M1, M2 after zero passage interruption subroutine is entered, then enter row clock, arrange parameter and The preservation of state variable, display interface, that is, preserve working condition during microwave furnace power-off, be then back to the main program of micro-wave oven. It should be noted that in an embodiment of the present invention, when micro-wave oven is powered off suddenly, preserving the current operating state of micro-wave oven simultaneously It is not limited to clock, parameter, display interface that user is set etc..
According to one embodiment of present invention, as shown in figure 4, control flow when micro-wave oven is re-powered includes:
S401, initialization, i.e., initialize when micro-wave oven is re-powered to the I/O mouths of control chip.
S402, Delay1=0, i.e. control chip are by " Delay1 " signal of the first delay pin Delay_1 outputs Low level, control the first metal-oxide-semiconductor M1 shut-offs prevent electrochemical capacitor EC1 chargings extremely.
S403, Delay2=1, i.e. control chip are by " Delay2 " signal of the second delay pin Delay_2 outputs High level, control the second metal-oxide-semiconductor M2 conductings.
S404, delay 10ms starts to detect Delay3 signals.
S405, reads Delay3 signals.
S406, judges whether delay 10ms terminates.If it is, performing step S409;If not, performing step S407.
Whether S407, it is low level to judge Delay3 signals.If it is, performing step S408;If not, return to step S405。
S408, recovers working condition when off-position and display interface, i.e. control micro-wave oven return to power-off, performs step Rapid S410.
S409, control micro-wave oven resets to original state, performs step S410.
S410, Delay1=1, Delay2=0, i.e. control chip pass through the first delay pin Delay_1 outputs " Delay1 " signal is high level, and the first metal-oxide-semiconductor M1 of control is turned on, and passes through the second delay pin Delay_2 outputs " Delay2 " signal is low level, and control the second metal-oxide-semiconductor M2 shut-offs, 5V default power supply persistently charges to electrochemical capacitor EC1, protected The voltage for holding electrochemical capacitor EC1 is 5V.
S411, is returned.
In the present embodiment, after micro-wave oven power-up initializing, control chip is exported by the first delay pin Delay_1 " Delay1 " signal be low level, control the first metal-oxide-semiconductor M1 shut-off, prevent electrochemical capacitor EC1 extremely charging, while control core Piece is high level, control the second metal-oxide-semiconductor M2 conductings by " Delay2 " signal of the second delay pin Delay_2 outputs.Detection It is interior in 10ms to repeat detection with judging whether " Delay " signal is low level during " Delay " signal, if detected " Delay " signal is low level, then working condition when controlling the micro-wave oven to return to power-off, and no longer detects " Delay " signal; If can't detect low level in the 10ms times, control micro-wave oven resets to original state.Finally, control chip passes through first " Delay1 " signal that the pin Delay_1 that is delayed is exported is high level, and the first metal-oxide-semiconductor M1 of control is turned on, and passes through the second delay Pin Delay_2 output " Delay2 " signals are low level, and control the second metal-oxide-semiconductor M2 shut-offs, power-off delay circuit is started to charge up, Prepared for next power cut off delay.
In summary, the power interruption recovering controlling method of the electric cooking pot of the embodiment of the present invention is by detecting the length of power-off time It is short, whether to return to the working condition during power-off when judging that electric cooking pot power-off is re-powered.If power-off time is very short Temporarily such as 1 second~1 minute, then working condition when controlling the electric cooking pot to return to power-off;If power-off time is long, control The electric cooking pot of system resets to original state.Therefore, for there is electric main tripping operation, user changes the of short duration power-off such as power outlet Situation, user is brought conveniently, while Consumer's Experience then without being configured again to electric cooking pot such as micro-wave oven to user More preferably.
The power interruption recovering controlling method of electric cooking pot according to embodiments of the present invention, first detection are input to electric cooking pot The zero cross signal of electric main judges whether electric cooking pot powers off, if it is determined that electric cooking pot power-off, then preserve electric cooking pot Working condition during power-off, and when detecting the power-off of electric cooking pot by power-off delay circuit when electric cooking pot is re-powered Between, working condition when then being judged whether to control the electric cooking pot return to power-off according to the power-off time of electric cooking pot, example As it is shorter between when power is off when the electric cooking pot of control return to power-off when working condition, when power is off between it is longer when control electricity cook Device of preparing food resets to original state, needs user to reset electric cooking pot so as to avoid electric cooking pot short supply interruption from going up again after electricity Mode of operation etc., it also avoid the working condition when power-off for a long time of electric cooking pot still returns to original power-off after upper electricity again And clock disorder caused etc. is perplexed so that the need for electric cooking pot fully meets user, bring conveniently, improve to user Consumer's Experience.
In addition, embodiments of the invention also proposed a kind of electric cooking pot, the power-off that it includes above-mentioned electric cooking pot is extensive Apparatus for coating.
The electric cooking pot of the embodiment of the present invention, when can re-power after a loss of power by judge the length of power-off time come Working condition when judgement returns to power-off or reset to original state, for example when power is off between it is shorter when return to power-off When working condition, when power is off between it is longer when reset to original state, so as to avoid short supply interruption from needing to use after upper electricity again Family resets mode of operation etc., it also avoid powering off again working condition when still returning to original power-off after upper electricity for a long time And clock disorder caused etc. is perplexed, the need for fully meeting user, brought conveniently to user, improve Consumer's Experience.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following:Electricity with one or more wirings Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized:With the logic gates for realizing logic function to data-signal Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is by appended claims and its equivalent limits.

Claims (9)

1. a kind of power interruption recovering device of electric cooking pot, it is characterised in that including:
Zero cross detection circuit, the zero cross detection circuit detection is input to the zero cross signal of the electric main of electric cooking pot;
Detect the power-off delay circuit of the power-off time of the electric cooking pot;And
Circuit is controlled, the control circuit is respectively connected with the zero cross detection circuit and the power-off delay circuit, the control Circuit processed judges whether the electric cooking pot powers off according to the zero cross signal, and is re-powered after the electric cooking pot power-off When working condition when judging whether to control the electric cooking pot return to power-off according to the power-off time of the electric cooking pot,
Wherein, the power-off delay circuit includes:
First metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor is connected with default power supply, the grid of first metal-oxide-semiconductor and the control Circuit is connected;
Second metal-oxide-semiconductor, the drain electrode of second metal-oxide-semiconductor is connected with the source electrode of first metal-oxide-semiconductor, the grid of second metal-oxide-semiconductor Pole is connected with the control circuit;
First triode, the base stage of first triode is connected with the source electrode of second metal-oxide-semiconductor, first triode Grounded emitter, the colelctor electrode of first triode is connected with the control circuit;
First resistor, one end of the first resistor is connected with the default power supply, the other end of the first resistor respectively with The colelctor electrode of first triode is connected with the control circuit;
First electrochemical capacitor, the positive terminal of first electrochemical capacitor respectively with the source electrode of first metal-oxide-semiconductor and described second The drain electrode of metal-oxide-semiconductor is connected, the negative pole end ground connection of first electrochemical capacitor;
Second resistance, the second resistance is in parallel with first electrochemical capacitor.
2. the power interruption recovering device of electricity cooking pot as claimed in claim 1, it is characterised in that
When the power-off time of the electric cooking pot is less than preset time, the control circuit controls the electric cooking pot to return to Working condition during power-off;
When the power-off time of the electric cooking pot is more than or equal to the preset time, the control circuit control electricity culinary art Device resets to original state.
3. the power interruption recovering device of electricity cooking pot as claimed in claim 2, it is characterised in that the preset time is according to described Power-off delay circuit is set.
4. the power interruption recovering device of electricity cooking pot as claimed in claim 3, it is characterised in that the control circuit includes:
Control chip, the first delay pin of the control chip is connected with the grid of first metal-oxide-semiconductor, the control chip The second delay pin be connected with the grid of second metal-oxide-semiconductor, the 3rd of the control chip is delayed pin and described first The colelctor electrode of triode is connected;
First electric capacity, one end ground connection of first electric capacity, the other end of first electric capacity and the output of the control chip Pin is connected;
Second electric capacity, one end ground connection of second electric capacity, the other end of second electric capacity and the input of the control chip Pin is connected;
Crystal oscillator, the crystal oscillator is connected between the other end of the other end of first electric capacity and second electric capacity;
3rd resistor, the 3rd resistor is in parallel with the crystal oscillator.
5. the power interruption recovering device of electricity cooking pot as claimed in claim 4, it is characterised in that the zero cross detection circuit bag Include:
4th resistance, one end of the 4th resistance is connected with the first end of the electric main;
First diode, the negative electrode of first diode is connected with the second end of the electric main;
Optocoupler, the first end of the optocoupler is connected with the other end of the 4th resistance, the second end of the optocoupler and described the The anode of one diode is connected, the 3rd end ground connection of the optocoupler;
5th resistance, one end of the 5th resistance is connected with the default power supply, the other end of the 5th resistance with it is described 4th end of optocoupler is connected;
6th resistance, the other end and the 4th end phase of the optocoupler of one end of the 6th resistance respectively with the 5th resistance Even, the other end of the 6th resistance is connected with the zero passage detection pin of the control chip;
3rd electric capacity, one end of the 3rd electric capacity is connected with the other end of the 6th resistance, the 3rd electric capacity it is another End is grounded after being connected with the 3rd end of the optocoupler.
6. a kind of electric cooking pot, it is characterised in that the power-off including the electric cooking pot as any one of claim 1-5 is extensive Apparatus for coating.
7. a kind of power interruption recovering controlling method of electric cooking pot, it is characterised in that comprise the following steps:
Detection is input to the zero cross signal of the electric main of electric cooking pot;
Judge whether the electric cooking pot powers off according to the zero cross signal;
If it is determined that the electric cooking pot power-off, then preserve the working condition of the electric cooking pot when power is off, and in the electricity The power-off time of the electric cooking pot is detected when cooking pot is re-powered by the power-off delay circuit in the electric cooking pot;With And
When control circuit judges whether to control the electric cooking pot return to power-off according to the power-off time of the electric cooking pot Working condition,
Wherein, the power-off delay circuit includes:
First metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor is connected with default power supply, the grid of first metal-oxide-semiconductor and the control Circuit is connected;
Second metal-oxide-semiconductor, the drain electrode of second metal-oxide-semiconductor is connected with the source electrode of first metal-oxide-semiconductor, the grid of second metal-oxide-semiconductor Pole is connected with the control circuit;
First triode, the base stage of first triode is connected with the source electrode of second metal-oxide-semiconductor, first triode Grounded emitter, the colelctor electrode of first triode is connected with the control circuit;
First resistor, one end of the first resistor is connected with the default power supply, the other end of the first resistor respectively with The colelctor electrode of first triode is connected with the control circuit;
First electrochemical capacitor, the positive terminal of first electrochemical capacitor respectively with the source electrode of first metal-oxide-semiconductor and described second The drain electrode of metal-oxide-semiconductor is connected, the negative pole end ground connection of first electrochemical capacitor;
Second resistance, the second resistance is in parallel with first electrochemical capacitor.
8. the power interruption recovering controlling method of electricity cooking pot as claimed in claim 7, it is characterised in that
When the power-off time of the electric cooking pot is less than preset time, the control electric cooking pot returns to work during power-off State;
When the power-off time of the electric cooking pot is more than or equal to the preset time, the electric cooking pot is controlled to reset to initially State.
9. the power interruption recovering controlling method of electricity cooking pot as claimed in claim 8, it is characterised in that the preset time according to The power-off delay circuit is set.
CN201410467015.9A 2014-09-12 2014-09-12 Electric cooking pot and its power interruption recovering device and power interruption recovering controlling method CN104678831B (en)

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JP6269737B2 (en) * 2015-08-20 2018-01-31 カシオ計算機株式会社 Function utilization device, function utilization method, and function utilization program
EP3133501B1 (en) 2015-08-20 2019-06-12 Casio Computer Co., Ltd. Utilizing function apparatus and recording medium
CN105376324A (en) * 2015-12-01 2016-03-02 九阳股份有限公司 Network control method of food processor
CN106301798B (en) * 2016-08-03 2019-07-05 美的智慧家居科技有限公司 Wireless telecom equipment, household electrical appliance, power-off control device and method
CN108255090B (en) * 2016-12-29 2020-12-29 佛山市顺德区美的电热电器制造有限公司 Control method and device
CN109507916A (en) * 2017-09-14 2019-03-22 佛山市顺德区美的电热电器制造有限公司 Method, apparatus, server and the storage medium that control household electrical appliances are resumed work
CN110063657A (en) * 2018-01-23 2019-07-30 佛山市顺德区美的电热电器制造有限公司 Cooking control method and culinary art control device, storage medium and cooking equipment
CN110874057A (en) * 2018-08-31 2020-03-10 佛山市顺德区美的电热电器制造有限公司 Cooking control method, cooking control device, cooking appliance and computer readable storage medium
CN111134528A (en) * 2018-11-06 2020-05-12 佛山市顺德区美的电热电器制造有限公司 Heating control method, heating control device, storage medium, and liquid heating container
CN109709830A (en) * 2018-12-29 2019-05-03 珠海优特智厨科技有限公司 A kind of replacing options of cooking equipment, device and storage medium
CN110200522A (en) * 2019-05-23 2019-09-06 九阳股份有限公司 A kind of power loss recovery method and cooking machine

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