CN108966398A - Device for inhibiting electromagnetic coupling, control circuit, electric appliance and control method thereof - Google Patents
Device for inhibiting electromagnetic coupling, control circuit, electric appliance and control method thereof Download PDFInfo
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- CN108966398A CN108966398A CN201810812771.9A CN201810812771A CN108966398A CN 108966398 A CN108966398 A CN 108966398A CN 201810812771 A CN201810812771 A CN 201810812771A CN 108966398 A CN108966398 A CN 108966398A
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- 238000010168 coupling process Methods 0.000 title claims abstract description 39
- 230000008878 coupling Effects 0.000 title claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 64
- 238000010411 cooking Methods 0.000 claims description 25
- 230000005764 inhibitory process Effects 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 9
- 230000005669 field effect Effects 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- 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
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
-
- 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
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a device for inhibiting electromagnetic coupling, a control circuit, an electric appliance and a control method thereof. The device comprises at least two branches, wherein each branch comprises a resonant circuit and a power driving module, the power driving module is connected with the resonant circuit, at least one branch further comprises a switch module, and the switch module is arranged on the resonant circuit of the branch. The invention can flexibly inhibit the electromagnetic coupling among the resonant circuits and solve the problem of increasing the failure risk of the power supply driving module due to the superposition of electromagnetic coupling energy.
Description
Technical field
The invention belongs to appliance fields, and in particular to a kind of device, control circuit, electric appliance and its control for inhibiting electromagnetic coupling
Method processed.
Background technique
With the development of science and technology, the household electrical appliance needed in people's daily life are more and more, many household electrical appliance are all
Using electromagnetic heating, the mode generallyd use has following several: by the multiple independent resonance electricity of single electric power driving module control
Road, or multiple independent resonance circuits are controlled respectively by multiple electric power driving modules, wherein resonance circuit is added for providing
The module of heat, so can achieve the local locations such as the bottom to cookware, side wall or top and carries out concentration heating, to cooking property
Computer heating control required for energy brings greater flexibility, and its control precisely, it is homogeneous heating, more efficient.
But in use, the mutual electromagnetic field couples of multiple resonance circuits are not inhibited effectively, phase
Since structure space is limited between adjacent coil panel, the degree of coupling that frequently can lead between coil panel is significantly increased, local heating
Energy is distributed to the other positions of cookware by way of coupling by energy, is lost multiple electric power driving module controlling parties
The advantage of case concentration local heating.Simultaneously when a surge arises, surge voltage is added to the voltage after rectifying and wave-filtering, entire circuit
Voltage raise, on the basis of there are electromagnetic coupling, but be superimposed coupling energy, lead to the power drives mould not in working condition
The drain-source voltage of block increases extremely, increases electric power driving module failure risk.
In the scheme that electromagnetic heating in the prior art is controlled, phase is taken without the electromagnetic coupling between resonance circuit
The technological means answered is inhibited.
Summary of the invention
In view of this, the present invention in view of the deficiency of the prior art, provides a kind of device of inhibition electromagnetic coupling, control
Circuit, electric appliance and its control method processed, the electromagnetic coupling that can flexibly inhibit resonance circuit mutual are solved due to electromagnetism coupling
Close the superposition of energy, the problem of increasing the failure risk of electric power driving module.
The present invention provides a kind of device for inhibiting electromagnetic coupling, which includes at least two branches, each branch
Road includes resonance circuit and electric power driving module, and the electric power driving module is connected with the resonance circuit, wherein at least one
Branch further includes switch module, and the switch module is arranged on the resonance circuit of the branch.
Preferably, the resonance circuit includes inductive branch and capacitive branch, and resonance electricity is provided on the inductive branch
Feel, resonant capacitance is provided on the capacitive branch, the switch module is arranged in the inductive branch and/or capacitive branch
On.
Preferably, the switch module includes relay and the triode that is connected with the relay.
Preferably, the electric power driving module includes insulated gate bipolar transistor IGBT or metal-oxide half field effect transistor
MOSFET。
Preferably, at least two branch includes the first branch and second branch, and the first branch includes first humorous
Vibration circuit, the first electric power driving module for being connected with first resonance circuit and it is arranged on first resonance circuit
First switch module, the second branch include the second resonance circuit, the second source being connected with second resonance circuit drive
Dynamic model block and the second switch module being arranged on second resonance circuit.
The present invention also provides a kind of control circuit, which includes the device of the inhibition electromagnetic coupling.
The present invention also provides a kind of electric appliances comprising the control circuit.
Preferably, the electric appliance includes cooking apparatus, and the cooking apparatus includes heating device, and the heating device includes
At least two heating parts of the different location of the cooking apparatus are located at, each heating part includes the control circuit
In a branch.
Preferably, at least two heating part includes that the bottom-heated portion of the bottom of the cooking apparatus is arranged in and sets
It sets in the side heating part of the side of the cooking apparatus.
The present invention also provides a kind of control methods of above-mentioned electric appliance.
In the control circuit of the cooking apparatus, every branch includes the switch module, this method comprises: working as
A part of heating part at least two heating part is in off working state and another part heating part is in running order
When, switch module of the control in the heating part under off working state disconnects, so that the heating under off working state
Resonance circuit in portion can not work normally, and the switch module closure in the heating part under control is in running order is in work
Making the resonance circuit in the heating part under state can work normally under the driving of coupled electric power driving module.
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of device for inhibiting electromagnetic coupling, of the invention
The technical solution that embodiment provides can include the following benefits: will be not in the resonance of working condition by control switch module
The resonant tank of circuit disconnects, and completely inhibits power dissipation caused by electromagnetic coupling, when it is applied to the cooking pots such as electric cooker
When tool, concentrates most of energy to realize and the concentration of the local location of cooking apparatus is heated, realize to the comprehensive formula of cooking apparatus
Independent heating.The failure risk for reducing electric power driving module, reduces whole failure rate.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can be used to limit the present invention.
Detailed description of the invention
Hereinafter reference will be made to the drawings to being described according to the preferred embodiment of the present invention.In figure:
Fig. 1 is the block diagram of the device shown according to an exemplary embodiment for inhibiting electromagnetic coupling.
Fig. 2 is the circuit diagram of the device shown according to an exemplary embodiment for inhibiting electromagnetic coupling.
Fig. 3 is the circuit diagram of the device of the inhibition electromagnetic coupling shown according to another exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Before carrying out embodiment description, it should be noted that for convenience of description and embody, this group of embodiment needle
Pair be inhibit electromagnetic coupling devices and methods therefor, it is not limited to enumerating limited range in embodiment.
Electric power driving module in following exemplary embodiment is only exemplary description, has class with electric power driving module
It is equally applicable like the other equipment of attribute.
Fig. 1 is the block diagram of the device of inhibition electromagnetic coupling described in the embodiment of the present invention.As shown in Figure 1, the inhibition electricity
Magnetic-coupled device includes: Power Entry Module 1, the first branch and second branch, and the first branch includes the first resonance circuit 2,
First switch module 3, the first electric power driving module 4, second branch include the second resonance circuit 5, second switch module 6, second
Electric power driving module 7.Wherein, the Power Entry Module 1 provides circuit power supply, selectable, and the power supply is to pass through
Power supply after rectifying and wave-filtering.First resonance circuit 2 by resonant inductance and resonance capacitance group at.Second resonance circuit 5
Also by resonant inductance and resonance capacitance group at.The output end of the Power Entry Module 1 connects the input of the first resonance circuit 2 respectively
The input terminal at end and second resonance circuit 5.The first switch module 3 is arranged on the first resonance circuit 2, can break
The resonant tank opened and be connected to the first resonance circuit 2.The second switch module 6 is arranged on the second resonance circuit 5, with can
The resonant tank for disconnecting and being connected to the second resonance circuit 5.
Selectable, first electric power driving module 4 and the second source drive module 7 include at least insulated gate
Bipolar transistor IGBT or metal-oxide half field effect transistor MOSFET.
The suppression provided by the present embodiment is specifically introduced by taking the heating device of cooking apparatus such as electric cooker as an example below
The working principle of the device of electromagnetic coupling processed, heating device include bottom-heated portion and the setting for being located at the bottom of electric cooker
In the side heating part of the side of electric cooker, wherein side heating part includes the first branch, and bottom-heated portion includes second
Road, working principle are: when needing bottom-heated portion and side heating part while heating, i.e., using two resonance circuits simultaneously
When, the first switch module 3 and the second switch module 6 are closed, first resonance circuit 2 and the first power drives mould
Block 4 is started to work, meanwhile, second resonance circuit 5 and second source drive module 7 are started to work.
When only needing to carry out bottom-heated portion to be heated, the first switch module 3 is driven to disconnect, described at this time the
The resonant tank of one resonance circuit 2 disconnects, and first resonance circuit 2 can not work normally.At the same time, described second is driven
Switch module 6 is closed, and the resonant tank of second resonance circuit 5 is connected at this time, and second resonance circuit 5 can be second
It is worked normally under the driving of electric power driving module 7.
When only needing to carry out side heating part to be heated, the first switch module 3 is driven to be closed, described at this time the
The resonant tank of one resonance circuit 2 is connected, and first resonance circuit 2 can be under the driving of the first electric power driving module 4 just
Often work.At the same time, the second switch module 6 is driven to disconnect, the resonant tank of second resonance circuit 5 is disconnected at this time
It opens, second resonance circuit 5 can not work normally.
Described first by the first switch module 3 and the second switch module 6 disconnection not in working condition is humorous
The resonant tank of vibration circuit 2 or the second resonance circuit 5, completely inhibits electromagnetic coupling on physical layer.
Meanwhile the embodiment of the present invention is by concentrating most of energy realization to add the concentration of the local location of electric cooker
Heat realizes that the independent heating comprehensive to electric cooker reduces whole failure to reduce the failure risk of electric power driving module
Rate.
It is, of course, understood that the quantity of branch can be not limited to be two, it is also possible to three or more,
It can not be all branch roads and be respectively provided with switch module, can not also be set on needing to be chronically at the road working condition Xia Zhi
Set switch module.In addition, switch module can also be separately positioned on the inductive branch and capacitive branch of same resonance circuit.
The present embodiment also provides a kind of electricity corresponding to the specific inhibition electromagnetic coupling for inhibiting electromagnetic coupling device
Lu Tu, as shown in Figure 2.INPUT is Power Entry Module, usually input alternating current, and carries out rectification filter to the alternating current of input
Wave.
First resonance circuit includes the first inductance L1 and first capacitor C1, and in the present embodiment, the first inductance L1 connects
The first switch module is connect, selectable, the first switch module includes the first relay K1, as shown in Fig. 2, described the
Branch (i.e. the first resonance circuit where the first inductance L1 is arranged in one relay K1 connecting triode Q1, the first relay K1
Inductive branch) on, selectable, first electric power driving module can choose the first IGBT1.
Second resonance circuit includes the second inductance L2 and the second capacitor C2, and in the present embodiment, the second inductance L2 connects
The second switch module is connect, selectable, the second switch module includes the second relay K2, as shown in Fig. 2, described the
Two relay K2 connecting triode Q2, the second relay K2 setting branch where the second inductance L2 (i.e. the second resonance circuit
Inductive branch) on, selectable, the second source drive module can choose the 2nd IGBT2.
The working principle of the circuit for inhibiting electromagnetic coupling is as follows:
INPUT is the filtered voltage in commercial power rectification, and when needing first resonance circuit work, it is enabled first to control EN1
Signal exports high level, triode Q1 conducting, and the first relay K1 be in closed state, the first inductance L1 with
The first capacitor C1 constitutes closed circuit；EN2 enable signal output low level, the triode Q2 cut-off, institute are controlled simultaneously
The second relay K2 is stated to be in an off state, the second inductance L2 and the second capacitor C2 can not constitute circuit, further according to
The demand of control logic, controls the turn-on and turn-off of the first IGBT1, and first resonance circuit is worked normally.
When needing the work of the second resonance circuit, first controlling EN2 enable signal and export high level, the triode Q2 is connected,
The second relay K2 is in closed state, and the second inductance L2 and the second capacitor C2 constitute closed circuit；Simultaneously
It controls EN1 enable signal and exports low level, the triode Q1 cut-off, the first relay K1 is in an off state, described
First inductance L1 and the second capacitor C1 can not constitute circuit, further according to the demand of control logic, control the 2nd IGBT2
Turn-on and turn-off, second resonance circuit worked normally.
By control mode as above, can disconnect not in the resonant tank of the resonance circuit of working condition, in physical layer
On the problem of being fully solved electromagnetic coupling.
The present embodiment also provides another specific inhibition electromagnetic coupling for corresponding to the inhibition electromagnetic coupling device
Circuit diagram, as shown in Figure 3.INPUT is Power Entry Module, usually input alternating current, and is rectified to the alternating current of input
Filtering.
First resonance circuit includes the first inductance L1 and first capacitor C1, and in the present embodiment, the first capacitor C1 connects
The first switch module is connect, selectable, the first switch module includes the first relay K1, as shown in figure 3, described the
Branch (i.e. the first resonance circuit where first capacitor C1 is arranged in one relay K1 connecting triode Q1, the first relay K1
Capacitive branch) on, selectable, first electric power driving module can choose the first IGBT1.
Second resonance circuit includes the second inductance L2 and the second capacitor C2, and in the present embodiment, the second capacitor C2 connects
The second switch module is connect, selectable, the second switch module includes the second relay K2, as shown in figure 3, described the
Branch (i.e. the second resonance circuit where the second capacitor C2 is arranged in two relay K2 connecting triode Q2, the second relay K2
Capacitive branch) on, selectable, the second source drive module can choose the 2nd IGBT2.
The working principle of the circuit for inhibiting electromagnetic coupling is as follows:
INPUT is the filtered voltage in commercial power rectification, and when needing first resonance circuit work, it is enabled first to control EN1
Signal exports high level, triode Q1 conducting, and the first relay K1 be in closed state, the first inductance L1 with
The first capacitor C1 constitutes closed circuit；EN2 enable signal output low level, the triode Q2 cut-off, institute are controlled simultaneously
The second relay K2 is stated to be in an off state, the second inductance L2 and the second capacitor C2 can not constitute circuit, further according to
The demand of control logic, controls the turn-on and turn-off of the first IGBT1, and first resonance circuit is worked normally.
When needing the work of the second resonance circuit, first controlling EN2 enable signal and export high level, the triode Q2 is connected,
The second relay K2 is in closed state, and the second inductance L2 and the second capacitor C2 constitute closed circuit；Simultaneously
It controls EN1 enable signal and exports low level, the triode Q1 cut-off, the first relay K1 is in an off state, described
First inductance L1 and the second capacitor C1 can not constitute circuit, further according to the demand of control logic, control the 2nd IGBT2
Turn-on and turn-off, second resonance circuit worked normally.
By control mode as above, can disconnect not in the resonant tank of the resonance circuit of working condition, in physical layer
On the problem of being fully solved electromagnetic coupling.
Illustratively, when a surge arises, surge voltage is added to the voltage after rectifying and wave-filtering, the voltage lift of entire circuit
Height disconnects the resonant tank of the first resonance circuit, a side when needing the work of the second resonance circuit by first switch module at this time
Face can inhibit electromagnetic coupling, while again can be to avoid not in the drain-source voltage of the electric power driving module of working condition liter extremely
Height, to reduce by the first electric power driving module failure risk.Similarly, when needing the work of the first resonance circuit, pass through second at this time
Switch module disconnects the resonant tank of the second resonance circuit, on the one hand can inhibit electromagnetic coupling, while again can be to avoid not existing
The drain-source voltage of the electric power driving module of working condition increases extremely, to reduce second source drive module failure risk.
The present invention also provides a kind of control circuit, which includes the device of the inhibition electromagnetic coupling.
The working principle of the device for the inhibition electromagnetic coupling that the control circuit includes is same as the previously described embodiments, herein not
It repeats again.
The present invention also provides a kind of electric appliances comprising the control circuit, the electric appliance are, for example, to pass through heating realization to cook
The cooking apparatus for process of preparing food.Cooking apparatus is, for example, that electric cooker, micropressure pot, electric pressure cooking saucepan etc. pass through heating realization cooking process
Utensil, the cooking apparatus include heating device, heating device include be located at cooking apparatus different location at least two
Heating part, each heating part include a branch in control circuit, for example, at least two heating parts include being arranged in cooking pot
The side heating part in the bottom-heated portion of the bottom of tool and the side that cooking apparatus is set, it is, of course, also possible to include that setting exists
Other heating parts such as the bottom and the corner heating part at the intersection location of side of cooking apparatus.In order to facilitate control, it is preferable that every
A branch road is provided with switch module.
Its control method includes:
When a part of heating part at least two heating part is at off working state and another part heating part
When working condition, switch module of the control in the heating part under off working state is disconnected, so that being in inoperative shape
The resonance circuit in heating part under state can not work normally, and the switch module in heating part under control is in running order closes
It closes, the resonance circuit in running order lower heating part can be under the driving of coupled electric power driving module normally
Work.
By taking side heating part and bottom-heated portion as an example, side heating part includes the first branch, and bottom-heated portion includes the
Two branches, when needing bottom-heated portion and side heating part while heating, i.e., when using two resonance circuits simultaneously, described the
One switch module 3 and the second switch module 6 closure, first resonance circuit 2 and the first electric power driving module 4 start
Work, meanwhile, second resonance circuit 5 and second source drive module 7 are started to work.
When only needing to carry out bottom-heated portion to be heated, the first switch module 3 is driven to disconnect, described at this time the
The resonant tank of one resonance circuit 2 disconnects, and first resonance circuit 2 can not work normally.At the same time, described second is driven
Switch module 6 is closed, and the resonant tank of second resonance circuit 5 is connected at this time, and second resonance circuit 5 can be second
It is worked normally under the driving of electric power driving module 7.
When only needing to carry out side heating part to be heated, the first switch module 3 is driven to be closed, described at this time the
The resonant tank of one resonance circuit 2 is connected, and first resonance circuit 2 can be under the driving of the first electric power driving module 4 just
Often work.At the same time, the second switch module 6 is driven to disconnect, the resonant tank of second resonance circuit 5 is disconnected at this time
It opens, second resonance circuit 5 can not work normally.
Those skilled in the art after content, will readily occur to the present invention after considering the specification and practice of the invention disclosed here
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications are used
Way or adaptive change follow general principle of the invention and including the present invention it is undocumented in the art known in
Common sense or conventional techniques.The description and examples are only to be considered as illustrative.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of device for inhibiting electromagnetic coupling, which is characterized in that the device includes at least two branches, each branch packet
Resonance circuit and electric power driving module are included, the electric power driving module is connected with the resonance circuit, wherein at least one branch
It further include switch module, the switch module is arranged on the resonance circuit of the branch.
2. the apparatus according to claim 1, which is characterized in that the resonance circuit includes inductive branch and capacitive branch,
It is provided with resonant inductance on the inductive branch, resonant capacitance is provided on the capacitive branch, the switch module setting exists
On the inductive branch and/or capacitive branch.
3. the apparatus according to claim 1, which is characterized in that the switch module include relay and with the relay
Connected triode.
4. the apparatus according to claim 1, which is characterized in that the electric power driving module includes insulated gate bipolar crystal
Pipe IGBT or metal-oxide half field effect transistor MOSFET.
5. according to claim 1 to device described in one of 4, which is characterized in that at least two branch includes the first branch
And second branch, the first branch includes the first resonance circuit, the first power drives for being connected with first resonance circuit
Module and the first switch module being arranged on first resonance circuit, the second branch include the second resonance circuit,
The second source drive module being connected with second resonance circuit and what is be arranged on second resonance circuit second open
Close module.
6. a kind of control circuit, which is characterized in that the device including the inhibition electromagnetic coupling as described in one of claim 1 to 5.
7. a kind of electric appliance, it is characterised in that: including control circuit as claimed in claim 6.
8. electric appliance according to claim 7, which is characterized in that the electric appliance includes cooking apparatus, the cooking apparatus packet
Heating device is included, the heating device includes at least two heating parts for being located at the different location of the cooking apparatus, often
A heating part includes a branch in the control circuit.
9. electric appliance according to claim 8, which is characterized in that at least two heating part includes being arranged in the culinary art
The side heating part in the bottom-heated portion of the bottom of utensil and the side that the cooking apparatus is set.
10. a kind of control method of electric appliance as claimed in claim 8 or 9, which is characterized in that the control of the cooking apparatus
In circuit processed, every branch includes the switch module, this method comprises: when a part at least two heating part
When heating part is in off working state and in running order another part heating part, heating of the control under off working state
Switch module in portion disconnects, so that the resonance circuit in the heating part under off working state can not work normally, controls
Make it is in running order under heating part in switch module closure, it is in running order under heating part in resonance circuit energy
It is enough to be worked normally under the driving of coupled electric power driving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812771.9A CN108966398B (en) | 2018-07-23 | 2018-07-23 | Device for inhibiting electromagnetic coupling, control circuit, electric appliance and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810812771.9A CN108966398B (en) | 2018-07-23 | 2018-07-23 | Device for inhibiting electromagnetic coupling, control circuit, electric appliance and control method thereof |
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| CN108966398B CN108966398B (en) | 2024-07-23 |
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| US20180245794A1 (en) * | 2015-11-27 | 2018-08-30 | Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Ltd. | Electromagnetic heating device |
| CN208424830U (en) * | 2018-07-23 | 2019-01-22 | 珠海格力电器股份有限公司 | Device for inhibiting electromagnetic coupling, control circuit and electric appliance |
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2018
- 2018-07-23 CN CN201810812771.9A patent/CN108966398B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203537576U (en) * | 2013-11-07 | 2014-04-09 | 珠海格力电器股份有限公司 | Heating circuit, PCB board and electric rice cooker |
| CN204539509U (en) * | 2015-04-07 | 2015-08-05 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and the electromagnetic heater for cooking apparatus |
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| Publication number | Publication date |
|---|---|
| CN108966398B (en) | 2024-07-23 |
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