CN106247416B - More kitchen range electromagnetic ovens and its Poewr control method - Google Patents
More kitchen range electromagnetic ovens and its Poewr control method Download PDFInfo
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- CN106247416B CN106247416B CN201610652350.5A CN201610652350A CN106247416B CN 106247416 B CN106247416 B CN 106247416B CN 201610652350 A CN201610652350 A CN 201610652350A CN 106247416 B CN106247416 B CN 106247416B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to a kind of more kitchen range electromagnetic ovens and its Poewr control methods, and to solve the noise problem generated when each kitchen range difference frequency work, this approach includes the following steps：S1：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd maximum power Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；S2：According to the target power PnCalculate general objective power P=∑ P of more kitchen range electromagnetic ovensn；S3：According to the general objective power P and the maximum power PmaxBetween magnitude relationship, control the real output of each kitchen range.Implement more kitchen range electromagnetic oven power control methods of the present invention, can effectively avoid each kitchen range be operated under different target power and the noise that generates, electromagnetic induction coil is not limited in by kitchen range, and each kitchen range can reach required target operation power, and effectively reduce the loss of power switch.
Description
Technical field
The present invention relates to electromagnetic heating technique fields, more specifically to a kind of more kitchen range electromagnetic ovens and its power control
Method processed.
Background technology
In electromagnetic heating technique field, more kitchen range electromagnetic ovens will be used wider and wider, but when multiple kitchen ranges while work
Make, when the power of each kitchen range heating is inconsistent, working frequency is also different.Although the working frequency of the acquiescence of each kitchen range usually exists
Working frequency difference outside the audibility range of human ear, but between kitchen range easily falls into the audibility range of human ear, and it is audible to generate user
Noise influences user experience.1 (application number of the prior art：CN201210279872.7 a kind of adding for bull electromagnetic stove) is disclosed
Heat control method, by the way that in some cycles T, each kitchen range is taken turns to operate with target power P respectively, the computational methods of working time
For t=P/ ∑s P*T.The prior art 2 (application number CN200680023003.0) discloses one kind and providing work(for multiple induction coils
The method of rate, multiple induction coils alternate run under same frequency and difference frequency mode.Both the above method to a certain extent, can be with
Play prevent interfering noise generate effect, but the power that induction coil can incude in the prior art 1 must be more kitchen ranges most
Several times powerful (for example, N kitchen ranges are then N times), causes the significant wastage of induction coil capacity, and the pressure resistance of resonant capacitance
Value is very high, and the stability of type selecting and product to device is extremely disadvantageous；In the prior art 2, mutually converted with frequency using difference frequency
It works, when using difference frequency work, since working frequency the higher person is far from resonant frequency, the power one when drum works
As it is relatively low, therefore, when set target power is larger, difference frequency work is difficult to reach target power, while can also have existing skill
The problems in art 1.
Invention content
The technical problem to be solved in the present invention is, in view of the drawbacks of the prior art, provide a kind of more kitchen range electromagnetic ovens and
Its Poewr control method avoids and generates noise because each kitchen range working frequency is inconsistent.
The technical solution adopted by the present invention to solve the technical problems is：A kind of power control of more kitchen range electromagnetic ovens is provided
Method, this approach includes the following steps：
S1：It is selected according to user, obtains the target power Pn and maximum work of each kitchen range when the work of at least two kitchen ranges
Rate Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；
S2：General objective power P=∑ P of more kitchen range electromagnetic ovens is calculated according to the target power Pnn；
S3：According to the general objective power P and the maximum power PmaxBetween magnitude relationship, control each stove
The real output of head.
Preferably, the step S3 includes the following steps：
S31：Judge whether the general objective power P is more than the maximum power Pmax, if so then execute step S33, otherwise
Execute S32；
S32：As P≤PmaxWhen, each kitchen range is taken turns to operate with general objective power P, when one of kitchen range works
When, other kitchen ranges do not work；
S33：As P > PmaxWhen, each kitchen range is operated together with different frequency respectively；Difference between the frequency
Audibility range beyond human ear.
Preferably, the step S32 includes the following steps：
S321：Set the work period T of more kitchen range electromagnetic ovens1；
S322：Each kitchen range is calculated in work period T1The interior time t to be worked with general objective power Pn1=Pn/P*T1；
S323：According to the working time tn1Control corresponding kitchen range work.
Preferably, the step S33 includes the following steps：
S331：Set the work period T of more kitchen range electromagnetic ovens2With target frequency difference Δ f, f1≤Δf≤f2；
S332：One of kitchen range is obtained with maximum power PmaxFrequency f when work1a, and to reach general objective work(
Rate, while the working frequency f of another kitchen range run2b；
Another described kitchen range is obtained with maximum power PmaxFrequency f when work2a, and to reach general objective power, together
The working frequency f of one of kitchen range of Shi Yunhang1b；
Frequency difference Δ f between two kitchen ranges that calculating works at the same time1=f2b-f1aWith Δ f2=f1b-f2a；
S333：Judge the frequency difference Δ f1And Δ f2Whether it is located in the range of target frequency difference Δ f, if then holding
Row step S334, it is no to then follow the steps S335；
S334：Each kitchen range is calculated in work period T2It is interior with maximum power PmaxThe time of work：Enter step S336；
S335：The working frequency of two kitchen ranges worked at the same time described in adjustment, enters step S333；
S336：According to the working time tn2Control corresponding kitchen range work.
Preferably, the step S335 includes the following steps：
S335a：As Δ f1> f2Or Δ f2> f2, keep general objective power P constant, adjust f1aWith f2b、f1bWith f2aValue,
Make f1≤Δf1≤f2, f1≤Δf2≤f2, enter step S333；
S335b：As Δ f1< f1Or Δ f2< f1, relatively described in two kitchen ranges working at the same time with target power PnWhen work
Frequency, obtain smaller value fn, described two kitchen ranges are controlled with fnIt works with frequency, and adjusts the duty ratio of one of kitchen range.
Preferably, the step S335a includes the following steps：
a1：By f2bWith f1bValue be reduced to f2BWith f1B；
a2：By f1aWith f2aValue increase to f1AWith f2A, keep general objective power P constant, make f1≤Δf1≤f2, f1≤Δ
f2≤f2。
Preferably, ranging from 16KHz≤Δ f≤26KHz of the target frequency difference.
The present invention also provides a kind of more kitchen range electromagnetic ovens using above-mentioned control method, including：
Operation panel：Target power for selecting work kitchen range and kitchen range；
Control unit：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd
Maximum power Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；According to the target power PnIt calculates
General objective power P=∑ P of more kitchen range electromagnetic ovensn；According to the general objective power P and the maximum power PmaxBetween
Magnitude relationship, control the real output of each kitchen range.
Preferably, the real output of control each kitchen range includes：As P≤PmaxWhen, each kitchen range
It is taken turns to operate with general objective power P, when one of kitchen range works, other kitchen ranges do not work；As P > PmaxWhen, it is described each
Kitchen range is operated together with different frequency respectively；Difference DELTA f between the frequency exceeds the audibility range of human ear.
Preferably, the difference range between the frequency is 16KHz≤Δ f≤26KHz.
The more kitchen range electromagnetic oven power control methods for implementing the present invention, can effectively avoid each kitchen range and are operated in different target work(
The noise generated under rate, electromagnetic induction coil is not limited in by kitchen range, and each kitchen range can reach required target operation work(
Rate, and effectively reduce the loss of power switch.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the flow chart of control method of the present invention；
Fig. 2 is in P≤PmaxThe work period schematic diagram of the next kitchen range of situation；
Fig. 3 is the work period schematic diagram of another kitchen range under working condition shown in Fig. 2；
Fig. 4 is in P > PmaxThe work period schematic diagram of the next kitchen range of situation；
Fig. 5 is the work period schematic diagram of another kitchen range under working condition shown in Fig. 3.
Specific implementation mode
The more kitchen range electromagnetic oven power control methods and more kitchen ranges electricity of it is proposed of the embodiment of the present invention are described with reference to the accompanying drawings
Magnetic stove.
As shown in Figure 1, the Poewr control method in more kitchen range electromagnetic ovens proposed by the present invention includes the following steps：
S1：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd maximum work
Rate Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；
S2：According to target power PnCalculate general objective power P=∑ P of more kitchen range electromagnetic ovensn；
S3：According to general objective power P and maximum power PmaxBetween magnitude relationship, control the reality output of each kitchen range
Power.
Further, step S3 includes the following steps：
S31：Judge whether general objective power P is more than maximum power Pmax, if so then execute step S33, otherwise execute S32；
S32：As P≤PmaxWhen, each kitchen range is taken turns to operate with general objective power P, when one of kitchen range works,
Its kitchen range does not work；
S33：As P > PmaxWhen, each kitchen range is operated together with different frequency respectively；Difference between frequency exceeds human ear
Audibility range.
When each kitchen range takes turns to operate, can avoid generating noise because of frequency difference when each kitchen range works at the same time.Each stove
When head is operated together with different frequency respectively, audibility range of the difference beyond human ear between each kitchen range frequency can also effectively reduce
The influence that noise is brought to user.
Further, step S32 includes the following steps：
S321：Set the work period T of more kitchen range electromagnetic ovens1；
S322：Each kitchen range is calculated in work period T1The interior time t to be worked with general objective power Pn1=Pn/P*T1；
S323：According to working time tn1Control corresponding kitchen range work.
Further, step S33 includes the following steps：
S331：Set the work period T of more kitchen range electromagnetic ovens2With target frequency difference Δ f, f1≤Δf≤f2；
S332：One of kitchen range is obtained with maximum power PmaxFrequency f when work1a, and to reach general objective work(
Rate, while the working frequency f of another kitchen range run2b；
Another described kitchen range is obtained with maximum power PmaxFrequency f when work2a, and to reach general objective power, together
The working frequency f of one of kitchen range of Shi Yunhang1b；
Frequency difference Δ f between two kitchen ranges that calculating works at the same time1=f2b-f1aWith Δ f2=f1b-f2a；
S333：Determination frequency difference Δ f1And Δ f2Whether it is located in the range of target frequency difference Δ f, if so then execute step
Rapid S334, it is no to then follow the steps S335；
S334：Each kitchen range is calculated in work period T2It is interior with maximum power PmaxThe time of work：Enter step S336；
S335：The working frequency for adjusting two kitchen ranges worked at the same time, enters step S333；
S336：According to working time tn2Control corresponding kitchen range work.
In some embodiments, since the difference frequency noise of more kitchen range electromagnetic ovens is usually produced because of adjacent kitchen range difference frequency work
It is raw, and the noise that human ear can be heard is not likely to produce when the two kitchen range difference frequencies work of distance farther out, so in above-described embodiment
Poewr control method is preferably applied to the case where lucky two kitchen ranges work at the same time.
In some embodiments, when three kitchen ranges work at the same time, the position of three kitchen ranges can be first judged, if each kitchen range
It when meeting farther out, can directly work, if two of which kitchen range close to controlling power as stated above；If three kitchen ranges are adjacent,
And the sum of target power of two neighboring kitchen range be more than maximum power when, working frequency can be compared two-by-two as stated above, ensure
The frequency-splitting between kitchen range is except human ear range of audibility range two-by-two.
Further, step S33 includes the following steps：
S335a：As Δ f1> f2Or Δ f2> f2, keep general objective power P constant, adjust f1aWith f2b、f1bWith f2aValue,
Make f1≤Δf1≤f2, f1≤Δf2≤f2, enter step S333；
So that difference on the frequency is located within the scope of target frequency difference, when adjustment, f can be reduced2b、f1bOr increase f1a、f2a, can also subtract
Small f2b、f1bAnd increase f1a、f2a.Since electromagnetic oven is in design, the lowest operating frequency of the acquiescence of each kitchen range is typically larger than or waits
In resonant frequency f0, so working as Δ f1=f2b-f1a> f2When, it is known that f2b> f2+f0.Due in kitchen range working frequency f2bFar from humorous
In the case of vibration frequency, it is smaller to continue changed power caused by adjusting the frequency institute energy.It therefore, can be by f2bValue be set as f2b
=f2+f0, then adjust f again on this basis1aSo that general objective power P is constant.Similarly, to f1bAnd f2aMethod of adjustment with it is upper
State f2bWith f1aMethod of adjustment it is identical.
S335b：As Δ f1< f1Or Δ f2< f1, compare two kitchen ranges worked at the same time with target power PnFrequency when work
Rate obtains smaller value fn, two kitchen ranges of control are with fnIt works with frequency, and adjusts the duty ratio of one of kitchen range.
In this case, the adjusting that output power is realized by adjusting PWM, makes each kitchen range working frequency one of electromagnetic oven
It causes, realizes muting effect.
The present invention provides a kind of more kitchen range electromagnetic ovens that should use above-mentioned control method, the electromagnetic oven include operation panel with
And control unit：
Operation panel：Target power for selecting work kitchen range and kitchen range；
Control unit：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd
Maximum power Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；According to target power PnCalculate more kitchen range electricity
General objective power P=∑ P of magnetic stoven；According to general objective power P and maximum power PmaxBetween magnitude relationship, control each stove
The real output of head.
Generated since the difference frequency noise of more kitchen range electromagnetic ovens is usually happened to be worked by adjacent kitchen range difference frequency, and distance compared with
Two remote kitchen range difference frequencies are not likely to produce the noise that human ear is easily heard when working, so above-mentioned Poewr control method is preferably applied
In lucky two kitchen ranges work at the same time the case where.Preferably, electromagnetic oven in some embodiment of the invention is dual-range-head electromagnetism
Stove, the dual-range-head include the first kitchen range, the second kitchen range.User selects the first kitchen range and the second stove by the operation panel of electromagnetic oven
Head works at the same time and sets the target power of the two.
As shown in Figure 2 and Figure 3, specifically, in one embodiment of the invention, user selects the first kitchen range and the second stove
The target power of the work of head is respectively P1=1500W, P2The rated maximum power of=1000W, each kitchen range of the electromagnetic oven are equal
Be 2500W, i.e. P1max=P2max=Pmax=2500W；Default work period T1=400ms.By can be calculated, the electromagnetic oven
General objective power P=∑ Pn=P1+P2=2500W=Pmax.In this case, the first kitchen range and the second kitchen range are with general objective
Power P takes turns to operate, and when one of kitchen range works, another kitchen range does not work.According to above- mentioned information, the first stove is calculated
Head is in work period T1The interior time t to be worked with power P11=P1/P*T1=1500/2500*400=240ms.Calculate the second stove
Head is in work period T1The interior time t to be worked with power P12=P2/P*T1=1000/2500*400=160ms.First kitchen range with
Second kitchen range is in work period T1Inside take turns to operate, T1=t11+t12.Electromagnetic oven control unit is according to calculating gained power, time
Corresponding kitchen range is controlled to work.
As shown in Figure 4, Figure 5, specifically, in one embodiment of the invention, user selects the first kitchen range and the second stove
The target power of the work of head is respectively P1=2000W, P2The rated maximum power of=1000W, each kitchen range of the electromagnetic oven are equal
Be 2500W, i.e. P1max=P2max=Pmax=2500W；Default work period T2=400ms；The range of target frequency difference Δ f is set
The region non-audible in human ear is set, the preferred scope in the present embodiment is 16KHz≤Δ f≤26KHz.It, should by can be calculated
General objective power P=∑ P of electromagnetic ovenn=P1+P2=3000W > Pmax.In this case, the first kitchen range and the second kitchen range are total
With operation, and respectively with maximum power PmaxIt takes turns to operate, when one of kitchen range is with power PmaxWhen work, another kitchen range
Operating power be P-Pmax.According to above- mentioned information, the first kitchen range is calculated with maximum power PmaxFrequency f when work1aAnd this
When the second kitchen range working frequency f2b；The second kitchen range is calculated with maximum power PmaxFrequency f when work2a, and at this time first
The working frequency f of kitchen range1b；Calculate the frequency difference Δ f under two working conditions1=f2b-f1aWith Δ f2=f1b-f2a；If Δ f1With
And Δ f2All within the scope of target frequency difference, then the first kitchen range is calculated in work period T2It is interior with power PmaxThe time of work
The second kitchen range is calculated in work period T2It is interior with power PmaxThe time of work
First kitchen range and the second kitchen range are in work period T2It is inside operated together, T2=t12+t22.Electromagnetic oven control unit according to
Calculate gained power, the corresponding kitchen range of time control works.
In some embodiments, it may appear that Δ f1> f2Or Δ f2> f2The case where, it should keep general objective power P not at this time
Become, adjusts f1aWith f2b、f1bWith f2aValue, make f1≤Δf1≤f2, f1≤Δf2≤f2；Specifically, the acquiescence of each kitchen range is minimum
Working frequency will be generally greater than or equal to resonant frequency f0, preferably resonant frequency f0=20KHz, so working as Δ f1=f2b-f1a>
When 26KHz, it is known that f2b> 46KHz.Due in kitchen range working frequency f2bFar from the case of resonant frequency, continue to adjust the frequency
Changed power is smaller caused by rate institute energy.It therefore, can be by f2bValue be set as f2b=46KHz, then adjusts again on this basis
f1aSo that general objective power P is constant.Similarly, to f1bAnd f2aMethod of adjustment and above-mentioned f2bWith f1aMethod of adjustment it is identical.
In some embodiments, it may appear that Δ f1< f1Or Δ f2< f1Situation, in the case, the first kitchen range and second
Kitchen range can work with frequency.Specifically, frequency when the first kitchen range of calculating and the second kitchen range are worked with respective target power respectively,
And the two is compared to obtain smaller frequency values, two kitchen ranges are worked with the smaller frequency values.In this case,
The adjusting that output power is realized by adjusting PWM, keeps each kitchen range working frequency of electromagnetic oven consistent, realizes muting effect.
The more kitchen range electromagnetic oven power control methods for implementing the present invention, can effectively avoid each kitchen range and are operated in different target work(
The noise generated under rate, electromagnetic induction coil is not limited in by kitchen range, and each kitchen range can reach required target operation work(
Rate, and effectively reduce the loss of power switch.
It should be understood that above example only expresses the preferred embodiment of the present invention, description is more specific and detailed
Carefully, but it cannot be construed as a limitation to the scope of the present invention；It should be pointed out that for the common skill of this field
For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also be done
Go out several modifications and improvements, these are all within the scope of protection of the present invention；Therefore, all to be done with scope of the invention as claimed
Equivalents and modification, should all belong to the covering scope of the claims in the present invention.
Claims (7)
1. a kind of Poewr control method of more kitchen range electromagnetic ovens, which is characterized in that this approach includes the following steps：
S1：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd maximum power
Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；
S2：According to the target power PnCalculate general objective power P=∑ P of more kitchen range electromagnetic ovensn；
S3：According to the general objective power P and the maximum power PmaxBetween magnitude relationship, control each kitchen range
Real output；
The step S3 includes the following steps：
S31：Judge whether the general objective power P is more than the maximum power Pmax, if so then execute step S33, otherwise execute
S32；
S32：As P≤PmaxWhen, each kitchen range is taken turns to operate with general objective power P, when one of kitchen range works,
Its kitchen range does not work；
S33：As P > PmaxWhen, each kitchen range is operated together with different frequency respectively；Difference between the frequency exceeds
The audibility range of human ear；
The step S33 includes the following steps：
S331：Set the work period T of more kitchen range electromagnetic ovens2With target frequency difference Δ f, f1≤Δf≤f2；
S332：One of kitchen range is obtained with maximum power PmaxFrequency f when work1a, and to reach general objective power, together
The working frequency f of another kitchen range of Shi Yunhang2b；
Another described kitchen range is obtained with maximum power PmaxFrequency f when work2a, and to reach general objective power, same to luck
The working frequency f of capable one of kitchen range1b；
Frequency difference Δ f between two kitchen ranges that calculating works at the same time1=f2b-f1aWith Δ f2=f1b-f2a；
S333：Judge the frequency difference Δ f1And Δ f2Whether it is located in the range of target frequency difference Δ f, if so then execute step
Rapid S334, it is no to then follow the steps S335；
S334：Each kitchen range is calculated in work period T2It is interior with maximum power PmaxThe time of work：Enter step S336；
S335：The working frequency of two kitchen ranges worked at the same time described in adjustment, enters step S333；
S336：According to the working time tn2Control corresponding kitchen range work.
2. according to the method described in claim 1, it is characterized in that, the step S32 includes the following steps：
S321：Set the work period T of more kitchen range electromagnetic ovens1；
S322：Each kitchen range is calculated in work period T1The interior time t to be worked with general objective power Pn1=Pn/P*T1；
S323：According to the working time tn1Control corresponding kitchen range work.
3. according to the method described in claim 2, it is characterized in that, the step S335 includes the following steps：
S335a：As Δ f1> f2Or Δ f2> f2, keep general objective power P constant, adjust f1aWith f2b、f1bWith f2aValue, make f1
≤Δf1≤f2, f1≤Δf2≤f2, enter step S333；
S335b：As Δ f1< f1Or Δ f2< f1, relatively described in two kitchen ranges working at the same time with target power PnFrequency when work
Rate obtains smaller value fn, described two kitchen ranges are controlled with fnIt works with frequency, and adjusts the duty ratio of one of kitchen range.
4. according to the method described in claim 3, it is characterized in that, the step S335a includes the following steps：
a1：By f2bWith f1bValue be reduced to f2BWith f1B；
a2：By f1aWith f2aValue increase to f1AWith f2A, keep general objective power P constant, make f1≤Δf1≤f2, f1≤Δf2≤
f2。
5. according to the method described in claim 3, it is characterized in that, ranging from 16KHz≤Δ f of target frequency difference≤
26KHz。
6. a kind of more kitchen range electromagnetic ovens using the Poewr control method as described in claim 1-5 any one, feature exists
In, including：
Operation panel：Target power for selecting work kitchen range and kitchen range；
Control unit：It is selected according to user, obtains the target power P of each kitchen range when the work of at least two kitchen rangesnAnd maximum work
Rate Pnmax, the maximum power P of each kitchen rangenmaxIt is identical, i.e. Pnmax=Pmax；According to the target power PnIt calculates described more
General objective power P=∑ P of kitchen range electromagnetic ovenn；According to the general objective power P and the maximum power PmaxBetween size
Relationship controls the real output of each kitchen range；
The real output of the control each kitchen range includes：As P≤Pmax, each kitchen range is with general objective work(
Rate P takes turns to operate, and when one of kitchen range works, other kitchen ranges do not work；As P > Pmax, each kitchen range difference
It is operated together with different frequency；Difference DELTA f between the frequency exceeds the audibility range of human ear.
7. more kitchen range electromagnetic ovens according to claim 6, which is characterized in that the difference range between the frequency is
16KHz≤Δf≤26KHz。
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| CN201610652350.5A CN106247416B (en) | 2016-08-10 | 2016-08-10 | More kitchen range electromagnetic ovens and its Poewr control method |
| PCT/CN2017/093561 WO2018028407A1 (en) | 2016-08-10 | 2017-07-19 | Multi-element induction stove and power control method therefor |
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| CN201610652350.5A CN106247416B (en) | 2016-08-10 | 2016-08-10 | More kitchen range electromagnetic ovens and its Poewr control method |
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|---|---|---|---|---|
| US12120800B2 (en) | 2018-08-30 | 2024-10-15 | Lg Electronics Inc. | Induction heating apparatus and method for controlling induction heating apparatus |
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| CN106247416B (en) * | 2016-08-10 | 2018-10-23 | 深圳拓邦股份有限公司 | More kitchen range electromagnetic ovens and its Poewr control method |
| CN107087319B (en) * | 2017-05-15 | 2020-11-17 | 深圳拓邦股份有限公司 | Control method and device for multi-burner induction cooker |
| CN109938616B (en) * | 2017-12-21 | 2020-12-22 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic cooking utensil and output power calculation method thereof |
| CN108243516B (en) * | 2018-02-05 | 2021-02-26 | 宁波拓邦智能控制有限公司 | Power control method and device of electromagnetic heating equipment and electromagnetic heating equipment |
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| WO2018028407A1 (en) | 2018-02-15 |
| CN106247416A (en) | 2016-12-21 |
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