CN108156684A - For the heating control circuit and electromagnetic cooking appliance of electromagnetic cooking appliance - Google Patents
For the heating control circuit and electromagnetic cooking appliance of electromagnetic cooking appliance Download PDFInfo
- Publication number
- CN108156684A CN108156684A CN201711297137.8A CN201711297137A CN108156684A CN 108156684 A CN108156684 A CN 108156684A CN 201711297137 A CN201711297137 A CN 201711297137A CN 108156684 A CN108156684 A CN 108156684A
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- China
- Prior art keywords
- switch
- coil panel
- coil
- control circuit
- power switch
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Classifications
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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
- H05B6/36—Coil arrangements
- H05B6/44—Coil arrangements having more than one coil or coil segment
-
- 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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
-
- 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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
-
- 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
- H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Induction Heating Cooking Devices (AREA)
- General Induction Heating (AREA)
Abstract
The embodiment of the present invention provides a kind of heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance, belongs to appliance field.The heating control circuit includes：Two or more control circuits, each control circuit in other control circuits of the control circuit including two or more coil panels and in addition to one control circuit in described two or multiple control circuits includes one or more coil panels and wherein each control circuit includes voltage source, power switch pipe and capacitance；One or more switch, be connected to that described two or multiple control circuits are interior and described two or multiple control circuits between；And controller, for the heating of tandem compound being made up of both the arbitrary or more persons for controlling power switch pipe in each control circuit and one or more of switches to realize between the coil panel in described two or multiple control circuits.It can realize the accurate control to the same area different heating position.
Description
Technical field
The present invention relates to appliance fields, and in particular, to a kind of heating control circuit and electricity for electromagnetic cooking appliance
Magnetic cooking apparatus.
Background technology
Electromagnetic oven mainly passes through high-power switch device (such as IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor) etc.) carry out driving coil disk generation alternating magnetic field, make in cookware liter therein
Temperature and achieve the purpose that heating.
It is a coil panel to be controlled to be added using one or two switching device in the relevant technologies, in heater circuit
Heat, present inventor have found this control mode not to the hardware in circuit (for example, resonant capacitance, coil panel, switch
Device etc.) reach and maximally utilize.
Invention content
The purpose of the embodiment of the present invention is to provide a kind of heating control circuit for electromagnetic cooking appliance and electromagnetism culinary art
Utensil, for solving or partly solving above-mentioned technical problem.
To achieve these goals, the embodiment of the present invention provides a kind of heating control circuit for electromagnetic cooking appliance,
The heating control circuit includes：Two or more control circuits a, wherein control in described two or multiple control circuits
Circuit processed includes two or more coil panels, its in described two or multiple control circuits in addition to one control circuit
Each control circuit in its control circuit includes one or more coil panels and wherein described two or multiple control electricity
Each control circuit in road includes voltage source, power switch pipe and capacitance；One or more switch, the one or more
Switch be connected to that described two or multiple control circuits are interior and described two or multiple control circuits between；And controller,
For by controlling the power switch pipe and described one in each control circuit in described two or multiple control circuits
A or multiple switch is formed come arbitrarily the two or the more persons realized between the coil panel in described two or multiple control circuits
Tandem compound heating.
Correspondingly, the embodiment of the present invention also provides a kind of electromagnetic cooking appliance, and the electromagnetic cooking appliance includes above-mentioned
Heating control circuit.
Through the above technical solutions, the coil panel in the different control circuits that can connect, to realize to the same area difference
The accurate control of heating location.Making full use of to the hardware in circuit is can be simultaneously reached, and improves the power of electromagnetic oven
Output performance.
The other feature and advantage of the embodiment of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is that the embodiment of the present invention is further understood for providing, and a part for constitution instruction, under
The specific embodiment in face is used to explain the embodiment of the present invention, but do not form the limitation to the embodiment of the present invention together.Attached
In figure：
Fig. 1 shows the combination diagram of four coil panels；
Fig. 2 shows the heating control circuits according to an embodiment of the invention for electromagnetic cooking appliance；
Fig. 3 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance；
Fig. 4 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance；And
Fig. 5 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance.
Specific embodiment
The specific embodiment of the embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, be not intended to restrict the invention embodiment.
Term " first " in the present invention, " second ", " third " ..., " the 9th " etc. illustrate and not restrictive for example.
The embodiment of the present invention provides a kind of heating control circuit for electromagnetic cooking appliance, which can be with
Including：Two or more control circuits a, wherein control circuit in described two or multiple control circuits can include two
A or multiple coil panels, other control circuits in described two or multiple control circuits in addition to one control circuit can
It can be with to include each control circuit in one or more coil panels and wherein described two or multiple control circuits
Including voltage source, power switch pipe and capacitance；One or more switch, one or more switch are connected to described two or more
A control circuit is interior and described two or multiple control circuits between；And controller, for pass through control it is described two or
Power switch pipe in each control circuit and one or more of switches in multiple control circuits is described to realize
The heating of tandem compound that arbitrary the two or more persons between coil panel in two or more control circuits are formed.The present invention
The heating control circuit that embodiment provides can carry out series connection group with the time at least two coil panels of the same area different location
Control is closed, so as to accurately control heating location.
Optionally, the voltage source included by each control circuit in two or more control circuits can be homologous voltage
Source, wherein the cathode of each voltage source can be both connected in common ground.Optionally, voltage source can be single-phase electricity potential source or
Multi-phase voltage source.
Optionally, in each control circuit, two power switch pipes and two capacitances can be included, wherein described two
The both ends of voltage source are connected in parallel on after power switch pipe series connection, the two of the voltage source is connected in parallel on after described two capacitance series connection
End.Coil panel in each control circuit is connected in series with, the one end for the coil panel being connected in series with and described two power switch pipes
Between endpoint be connected and the endpoint between the other end and described two capacitances is connected.
Optionally, the heating control circuit provided in an embodiment of the present invention for electromagnetic cooking appliance can include the first control
Circuit and second control circuit processed, the first control circuit and second control circuit can respectively include two coil panels.Fig. 1 shows
The combination diagram of four coil panels is gone out.As shown in Figure 1, heating control circuit provided in an embodiment of the present invention can realize it
The combined heated of middle any two or three coil panels can also realize the combined heated of four coil panels.For example, it can realize
Any one combined heated below：The combined heated of coil panel 10 and coil panel 20；The combination of coil panel 20 and coil panel 30 adds
Heat；The combined heated of coil panel 10 and coil panel 40；The combined heated of coil panel 30 and coil panel 40；Coil panel 10, coil panel
20 and the combined heated of coil panel 30；The combined heated of coil panel 20, coil panel 30 and coil panel 40；Coil panel 10, coil panel
20th, combined heated of coil panel 30 and coil panel 40 etc..It is appreciated that the embodiment of the present invention is not restricted to this, the first control
Circuit and second control circuit can need according to control and respectively contain any number of coil panel.
It will include two control circuits, the two control circuits for the heating control circuit of electromagnetic cooking appliance below
For respectively including two coil panels, the embodiment of the present invention is further described.For include more control circuits and/
Or more coil panel embodiment, can be with embodiment described below on the basis of, realized by reasonably changing, example
By way of such as reasonably increasing control circuit and/or by increasing switch, reducing switch or change the connection relation of switch
To realize.
Fig. 2 shows the heating control circuits according to an embodiment of the invention for electromagnetic cooking appliance.Such as Fig. 2 institutes
Show, can include for the heating control circuit of electromagnetic cooking appliance：First control circuit, second control circuit and controller
(not shown).Wherein, first control circuit can include：Power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitance C1 and capacitance C2, voltage source P1, second control circuit can include：Power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitance C3 and capacitance C4, voltage source P2.Voltage source P1 and voltage source P2 is homologous
Alternating-current voltage source, and the cathode of voltage source P1 and voltage source P2 are both connected in common ground.Optionally, voltage source P1 and electricity
Potential source P2 can be single-phase voltage source or multi-phase voltage source.
In first control circuit, the voltage source is connected in parallel on after power switch tube S G1 and power switch tube S G2 series connection
The both ends of the first voltage source P1, coil panel 10 and coil panel are connected in parallel on after the both ends of P1, capacitance C1 and capacitance C2 series connection
20 are in series, the coil panel 10 being in series and one end of coil panel 20 and the power switch tube S G1 and power switch tube S G2 it
Between endpoint 11 be connected and the endpoint 12 between the other end and capacitance C1 and the second capacitance C2 is connected.Wherein, coil panel 10
One end be connected with endpoint 11, the other end of coil panel 20 is connected with one end of coil panel 20, the other end of coil panel 20
It is connected with endpoint 12.
First control circuit can also include：S1 is switched, switch S1 is connected on endpoint 11 and 10 He of coil panel being in series
Between one end of coil panel 20；S2 is switched, switch S2 is connected between coil panel 10 and coil panel 20；And switch S3, switch
S3 is connected between endpoint 12 and the other end of the coil panel being in series 10 and coil panel 20.
In second control circuit, it is connected in parallel on voltage source P2's after power switch tube S G3 and power switch tube S G4 series connection
The both ends of voltage source P2 are connected in parallel on after both ends, capacitance C3 and capacitance C4 series connection, coil panel 30 and coil panel 40 are in series, mutually go here and there
The coil panel 30 of connection and one end of coil panel 40 are connected with the endpoint 13 between power switch tube S G3 and power switch tube S G4
And the endpoint 14 between the other end and capacitance C3 and capacitance C4 is connected.Wherein, one end of coil panel 30 is connected with endpoint 13,
The other end of coil panel 30 is connected with one end of coil panel 40, and the other end of coil panel 40 is connected with endpoint 14.
Second control circuit can also include：S7 is switched, switch S7 is connected on endpoint 13 and 30 He of coil panel being in series
Between one end of coil panel 40；S8 is switched, switch S8 is connected between coil panel 30 and coil panel 40；And switch S9, switch
S9 is connected between endpoint 14 and the other end of the coil panel being in series 30 and coil panel 40.
Heating control circuit shown in Fig. 2 can also include：S4 is switched, one end of switch S4 is connected to endpoint 11 and opens
Between closing S1, the other end for switching S4 is connected between endpoint 13 and switch S7；S5 is switched, the one end for switching S5 is connected to coil
Between the other end of disk 10 and switch S2, the other end for switching S5 is connected between the other end of coil panel 30 and switch S8；With
And switch S6, the one end for switching S6 are connected between the other end of coil panel 20 and switch S3, the other end for switching S6 is connected to
Between the other end of coil panel 40 and switch S9.
Controller can realize line by controlling power switch tube S G1 to power switch tube S G4 and switch S1 to S9
Disk 10 is enclosed to the combined heated between coil panel 40.
Power switch pipe used in the embodiment of the present invention can be high-power switch device, such as can be IGBT,
Or can be high power relay etc..Optionally, power switch pipe is one way conducting device.
Controller can switch on and off to make by controlling power switch tube S G1 to SG4 and switching S7 to switch S9
The coil panel 40 obtained in coil panel 10 and second control circuit in first control circuit is connected in series with to realize combination
It heats or the coil panel 30 in the coil panel 20 and second control circuit in first control circuit is caused to be connected in series with to realize
Combination heats.
Controller can switch on and off to make by controlling power switch tube S G1 to SG4 and switching S7 to switch S9
Coil panel 10 in first control circuit and 20 combined heated of coil panel and/or can cause line in second control circuit
Enclose 40 combined heated of disk 30 and coil panel.
Specifically, controller can be with 30 combined heated of control coil disk 20 and coil panel.In this case, in alternating current
First half cycle in a cycle of pressure, controller can control switch S7, switch S5, switch S2, switch S3 and power switch
Pipe SG3 is connected, and rest switch and power switch pipe is controlled to disconnect, so that coil panel 20, coil panel 30, power switch pipe
SG3 and capacitance C2 are composed in series resonance circuit, then the flow direction of electric current is in first half cycle：Anode → power of voltage source P2 is opened
Close pipe SG3 → switch S7 → coil panel 30 → switch S5 → switch S2 → coil panel 20 → switch S3 → capacitance C2 → voltage source P1
Cathode.Alternatively, optionally, the first half cycle in a cycle of alternating voltage, controller can control switch S7, switch
S5, switch S2, switch S6, switch S9 and power switch tube S G3 are connected, and rest switch and power switch pipe is controlled to disconnect, with
So that coil panel 20, coil panel 30, power switch tube S G3 and capacitance C4 are composed in series resonance circuit, then it is electric in first half cycle
The flow direction of stream is：The anode of voltage source P2 → power switch tube S G3 → switch S7 → coil panel 30 → switch S5 → switch S2 →
The cathode of coil panel 20 → switch S6 → switch S9 → capacitance C4 → voltage source P2.It is later half in a cycle of alternating voltage
Period, controller can control switch S9, switch S6, switch S2, switch S5, switch S7, switch S4 and power switch tube S G2 to connect
It is logical, and rest switch and power switch pipe is controlled to disconnect, so that coil panel 20, coil panel 30, power switch tube S G2 and capacitance
C3 is composed in series resonance circuit, then is in the flow direction of the interim electric current of second half：The anode of voltage source P2 → capacitance C3 → switch S9
→ switch S6 → coil panel 20 → switch S2 → switch S5 → coil panel 30 → switch S7 → switch S4 → power switch tube S G2 →
The cathode of voltage source P1.Alternatively, the later half period in a cycle of alternating voltage, controller can control switch S9, open
S6, switch S2, switch S5, switch S7 and power switch tube S G4 is closed to connect, and rest switch and power switch pipe is controlled to disconnect,
So that coil panel 20, coil panel 30, power switch tube S G4 and capacitance C3 are composed in series resonance circuit, then it is interim in second half
The flow direction of electric current is：The anode of voltage source P2 → capacitance C3 → switch S9 → switch S6 → coil panel 20 → switch S2 → switch S5
The cathode of → coil panel 30 → switch S7 → power switch tube S G4 → voltage source P2.
Controller can also 40 combined heated of control coil disk 10 and coil panel.In this case, in this case,
First half cycle in a cycle of alternating voltage, controller can control switch S1, switch S5, switch S8, switch S9 and
Power switch tube S G1 is connected, and rest switch and power switch pipe is controlled to disconnect, so that coil panel 10, coil panel 40, power
Switching tube SG1 and capacitance C4 are composed in series resonance circuit, then the flow direction of electric current is in first half cycle：The anode of voltage source P1 →
Power switch tube S G1 → switch S1 → coil panel 10 → switch S5 → switch S8 → coil panel 40 → switch S9 → capacitance C4 → electricity
The cathode of potential source P2.Later half period in a cycle of alternating voltage, controller can control switch S3, switch S6, open
S8, switch S5, switch S1, switch S4 and power switch tube S G4 is closed to connect, and rest switch and power switch pipe is controlled to disconnect,
So that coil panel 10, coil panel 40, power switch tube S G4 and capacitance C1 are composed in series resonance circuit, then in first half cycle
The flow direction of electric current is：The anode of voltage source P1 → capacitance C1 → switch S3 → switch S6 → coil panel 40 → switch S8 → switch S5
→ coil panel 10 → switch S1 → switch S4 → power switch tube S G4.
Controller can be with 20 combined heated of control coil disk 10 and coil panel.In this case, controller can control
Switch S1 is connected to switch S3 and switch S4 to S9 is controlled to disconnect.First half cycle in a cycle of alternating voltage, control
Power switch tube S G1 can be controlled to be connected for device so that coil panel 10, coil panel 20, power switch tube S G1 and capacitance C2 series connection
Resonance circuit is formed, then the flow direction of electric current is in first half cycle：The anode of voltage source P1 → power switch tube S G1 → switch S1
The cathode of → coil panel 10 → switch S2 → coil panel 20 → switch S3 → capacitance C2 → voltage source P1.At one of alternating voltage
Later half period in period, controller can control power switch tube S G2 conductings so that coil panel 10, coil panel 20, power
Switching tube SG2 and capacitance C1 are composed in series resonance circuit, then are in the flow direction of the interim electric current of second half：The anode of voltage source P1
→ capacitance C1 → switch S3 → coil panel 20 → switch S2 → coil panel 10 → switch S1 → power switch tube S G2 → voltage source P1
Cathode.
Controller can be with 40 combined heated of control coil disk 30 and coil panel.In this case, controller can control
Switch S7 is connected to switch S9 and switch S1 to S6 is controlled to disconnect.First half cycle in a cycle of alternating voltage, control
Power switch tube S G3 can be controlled to be connected for device so that coil panel 30, coil panel 40, power switch tube S G3 and capacitance C4 series connection
Resonance circuit is formed, then the flow direction of electric current is in first half cycle：The anode of voltage source P2 → power switch tube S G3 → switch S7
The cathode of → coil panel 30 → switch S8 → coil panel 40 → switch S9 → capacitance C4 → voltage source P2.At one of alternating voltage
Later half period in period, controller can control power switch tube S G4 conductings so that coil panel 30, coil panel 40, power
Switching tube SG4 and capacitance C3 are composed in series resonance circuit, then are in the flow direction of the interim electric current of second half：The anode of voltage source P2 →
Capacitance C3 → switch S9 → coil panel 40 → switch S8 → coil panel 30 → switch S7 → power switch tube S G4 → voltage source P2's
Cathode.
Controller can also realize the combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40.It such as can
It is disconnected with control switch S4 to S6 is switched, control switch S1 is connected to S3 and switch S7 is switched to S9 is switched.In alternating voltage
First half cycle in a cycle can control power switch tube S G1 to be connected with power switch tube S G3, and control power switch
Pipe SG2 and power switch tube S G4 is disconnected.The later half period in a cycle of alternating voltage, control power switch tube S G2 and
Power switch tube S G4 is connected, and power switch tube S G1 and power switch tube S G3 is controlled to disconnect, so as to fulfill coil panel 10, line
Circle disk 20, coil panel 30 and coil panel 40 work.
It is appreciated that those skilled in the art can be shown in Fig. 2 circuit diagram on the basis of carry out simply modification or
Person modifies to the control mode of controller, for example, can by increase or decrease coil panel in heating control circuit or
Person increases or decreases the switch in heating control circuit, to realize in heating control circuit any two coil panel or any number of
The tandem compound that coil panel is formed is heated.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through by above-described embodiment
Heating can accurately control heating location, and realize and hardware in circuit be made full use of.
Fig. 3 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance.Such as Fig. 3 institutes
Show, can include for the heating control circuit of electromagnetic cooking appliance：First control circuit, second control circuit and controller
(not shown).Wherein, first control circuit can include：Power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitance C1 and capacitance C2, voltage source P1, second control circuit can include：Power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitance C3 and capacitance C4, voltage source P2.Voltage source P1 and voltage source P2 is homologous
Alternating-current voltage source, and the cathode of voltage source P1 and voltage source P2 are both connected in common ground.Optionally, voltage source P1 and electricity
Potential source P2 can be single-phase voltage source or multi-phase voltage source.
In first control circuit, the voltage source is connected in parallel on after power switch tube S G1 and power switch tube S G2 series connection
The both ends of the first voltage source P1, coil panel 10 and coil panel are connected in parallel on after the both ends of P1, capacitance C1 and capacitance C2 series connection
20 are in series, the coil panel 10 being in series and one end of coil panel 20 and the power switch tube S G1 and power switch tube S G2 it
Between endpoint 11 be connected and the endpoint 12 between the other end and capacitance C1 and the second capacitance C2 is connected.Wherein, coil panel 10
One end be connected with endpoint 11, the other end of coil panel 20 is connected with one end of coil panel 20, the other end of coil panel 20
It is connected with endpoint 12.
In second control circuit, it is connected in parallel on voltage source P2's after power switch tube S G3 and power switch tube S G4 series connection
The both ends of voltage source P2 are connected in parallel on after both ends, capacitance C3 and capacitance C4 series connection, coil panel 30 and coil panel 40 are in series, mutually go here and there
The coil panel 30 of connection and one end of coil panel 40 are connected with the endpoint 13 between power switch tube S G3 and power switch tube S G4
And the endpoint 14 between the other end and capacitance C3 and capacitance C4 is connected.Wherein, one end of coil panel 30 is connected with endpoint 13,
The other end of coil panel 30 is connected with one end of coil panel 40, and the other end of coil panel 40 is connected with endpoint 14.
Heating control circuit shown in Fig. 3 can also include：Single-pole double-throw switch (SPDT) S31 and single-pole double-throw switch (SPDT) S32.Hilted broadsword
Commutator S31 is connected between endpoint 11 and one end of the coil panel being in series 10 and coil panel 20, wherein the hilted broadsword is double
The free end a of throw switch S31 is connected with endpoint 11, a fixing end b of the single-pole double-throw switch (SPDT) S31 and the coil being in series
Disk 10 is connected with one end of coil panel 20, and another fixing end c of the single-pole double-throw switch (SPDT) S31 is connected to endpoint 13 and mutually goes here and there
Between the coil panel 30 of connection and one end of coil panel 40.Single-pole double-throw switch (SPDT) S32 is connected between coil panel 30 and coil panel 40,
The free end a of wherein described single-pole double-throw switch (SPDT) S32 is connected with coil panel 30, a fixation of the single-pole double-throw switch (SPDT) S32
End b is connected with coil panel 40, and another fixing end c of the single-pole double-throw switch (SPDT) S32 is connected to coil panel 10 and coil panel 20
Between.
Controller can be by controlling power switch tube S G1 to power switch tube S G4, switch S31 and switch S32 come real
Show coil panel 10 to the combined heated between coil panel 40.
Power switch pipe used in the embodiment of the present invention can be high-power switch device, such as can be IGBT,
Or can be high power relay etc..Optionally, power switch pipe is one way conducting device.
Controller can realize the combined heated of coil panel 20 and coil panel 30.In this case, controller can be controlled
The free end a of single-pole double-throw switch (SPDT) S31 processed is connected to fixing end c and controls the free end a connections of single-pole double-throw switch (SPDT) S32
To fixing end b.First half cycle in a cycle of alternating voltage, controller can control power switch tube S G1 connect with
So that coil panel 30, coil panel 20, power switch tube S G1 and capacitance C2 are composed in series resonance circuit.At one of alternating voltage
Later half period in period, controller can control power switch tube S G2 conductings so that coil panel 30, coil panel 20, power
Switching tube SG2 and capacitance C1 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 10 and coil panel 20.In this case, controller can be with
The free end a of control single-pole double-throw switch (SPDT) S31 is connected to fixing end b, the first half cycle in a cycle of alternating voltage, control
Power switch tube S G1 can be controlled to be connected for device processed so that coil panel 10, coil panel 20, power switch tube S G1 and capacitance C2 strings
Connection composition resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 to lead
It passes to so that coil panel 10, coil panel 20, power switch tube S G2 and capacitance C1 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 30 and coil panel 40.In this case, controller can be controlled
The free end a of single-pole double-throw switch (SPDT) S32 processed is connected to fixing end c, the first half cycle in a cycle of alternating voltage, control
Power switch tube S G3 can be controlled to be connected for device so that coil panel 30, coil panel 40, power switch tube S G3 and capacitance C4 series connection
Form resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G4 to be connected
So that coil panel 30, coil panel 40, power switch tube S G4 and capacitance C3 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40.It such as can
Fixing end b is connected to the free end a for controlling single-pole double-throw switch (SPDT) S31 and controls the free end a of single-pole double-throw switch (SPDT) S32
It is connected to fixing end c.First half cycle in a cycle of alternating voltage can control power switch tube S G1 and power to open
It closes pipe SG3 to connect, and power switch tube S G2 and power switch tube S G4 is controlled to disconnect.After in a cycle of alternating voltage
Half period, control power switch tube S G2 are connected, and control power switch tube S G1 and power switch pipe with power switch tube S G4
SG3 is disconnected, and is worked so as to fulfill coil panel 10, coil panel 20, coil panel 30 and coil panel 40.
It is appreciated that those skilled in the art can be shown in Fig. 3 circuit diagram on the basis of carry out simply modification or
Person modifies to the control mode of controller, for example, can by increase or decrease coil panel in heating control circuit or
Person increases or decreases the switch in heating control circuit, to realize in heating control circuit any two coil panel or any number of
The tandem compound that coil panel is formed is heated.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through by above-described embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, be saved while optimizing circuit
Cost.
Fig. 4 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance.Such as Fig. 4 institutes
Show, can include for the heating control circuit of electromagnetic cooking appliance：First control circuit, second control circuit and controller
(not shown).Wherein, first control circuit can include：Power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitance C1 and capacitance C2, voltage source P1, second control circuit can include：Power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitance C3 and capacitance C4, voltage source P2.Voltage source P1 and voltage source P2 is homologous
Alternating-current voltage source, and the cathode of voltage source P1 and voltage source P2 are both connected in common ground.Optionally, voltage source P1 and electricity
Potential source P2 can be single-phase voltage source or multi-phase voltage source.
In first control circuit, the voltage source is connected in parallel on after power switch tube S G1 and power switch tube S G2 series connection
The both ends of the first voltage source P1, coil panel 10 and coil panel are connected in parallel on after the both ends of P1, capacitance C1 and capacitance C2 series connection
20 are in series, the coil panel 10 being in series and one end of coil panel 20 and the power switch tube S G1 and power switch tube S G2 it
Between endpoint 11 be connected and the endpoint 12 between the other end and capacitance C1 and the second capacitance C2 is connected.Wherein, coil panel 20
One end be connected with first end point 11, the other end of coil panel 20 is connected with one end of coil panel 10, coil panel 10 it is another
One end is connected with endpoint 12.
In second control circuit, it is connected in parallel on voltage source P2's after power switch tube S G3 and power switch tube S G4 series connection
The both ends of voltage source P2 are connected in parallel on after both ends, capacitance C3 and capacitance C4 series connection, coil panel 30 and coil panel 40 are in series, mutually go here and there
The coil panel 30 of connection and one end of coil panel 40 are connected with the endpoint 13 between power switch tube S G3 and power switch tube S G4
And the endpoint 14 between the other end and capacitance C3 and capacitance C4 is connected.Wherein, one end of coil panel 30 is connected with endpoint 13,
The other end of coil panel 30 is connected with one end of coil panel 40, and the other end of coil panel 40 is connected with endpoint 14.Wherein, line
One end of circle disk 40 is connected with endpoint 13, and the other end of coil panel 40 is connected with one end of coil panel 30, coil panel 30
The other end is connected with endpoint 14.
As shown in figure 4, switch S1 can also be included in heating control circuit to switching S4.Wherein, switch S1 is connected on
Between coil panel 10 and coil panel 20；One end of switch S2 is connected between switch S1 and coil panel 20, switchs the other end of S2
It is connected between coil panel 30 and coil panel 40；One end of switch S3 is connected between the other end of coil panel 10 and endpoint 12,
The other end of switch S3 is connected between the other end of coil panel 30 and switch S4；And switch S4 is connected on described be in series
Between the other end and endpoint 14 of coil panel 30 and coil panel 40.
Controller can be with 30 combined heated of control coil disk 20 and coil panel.In this case, controller can control open
It closes S2 to connect with switch S3, and switch S1 and switch S4 is controlled to disconnect.First half cycle in a cycle of alternating voltage, control
Power switch tube S G1 can be controlled to connect for device processed so that coil panel 30, coil panel 20, power switch tube S G1 and capacitance C2 strings
Connection composition resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 to lead
It passes to so that coil panel 30, coil panel 20, power switch tube S G2 and capacitance C1 are composed in series resonance circuit.
Controller can be with 20 combined heated of control coil disk 10 and coil panel.In this case, controller can control
Switch S1 is connected and switch S2 and S3 is controlled to disconnect.First half cycle in a cycle of alternating voltage, controller can be controlled
Power switch tube S G1 conductings processed are so that coil panel 10, coil panel 20, power switch tube S G1 and capacitance C2 are composed in series resonance
Circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 conductings so that line
Circle disk 10, coil panel 20, power switch tube S G2 and capacitance C1 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 30 and coil panel 40.In this case, controller can be controlled
System switch S4 is connected and is controlled switch S2 and S3 disconnections, and the first half cycle in a cycle of alternating voltage, controller can be with
Control power switch tube S G3 conductings so that coil panel 30, coil panel 40, power switch tube S G3 and capacitance C4 be composed in series it is humorous
Shake circuit.The later half period in a cycle of alternating voltage, controller can control power switch tube S G4 be connected so that
Coil panel 30, coil panel 40, power switch tube S G4 and capacitance C3 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40.It such as can
It is connected with control switch S1 with switch S4, and switch S2 and switch S3 is controlled to disconnect.Before in a cycle of alternating voltage
Half period can control power switch tube S G1 to be connected with power switch tube S G3, and control power switch tube S G2 and power switch
Pipe SG4 is disconnected.Later half period in a cycle of alternating voltage, control power switch tube S G2 and power switch tube S G4 connect
It is logical, and power switch tube S G1 and power switch tube S G3 is controlled to disconnect, so as to fulfill coil panel 10, coil panel 20, coil panel 30
And coil panel 40 works.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through by above-described embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, be saved while optimizing circuit
Cost.
It is appreciated that those skilled in the art can with carried out on the basis of circuit diagram shown in Fig. 4 simply modification or
Person modifies to the control mode of controller, for example, can by increase or decrease coil panel in heating control circuit or
Person increases or decreases the switch in heating control circuit, to realize in heating control circuit any two coil panel or any number of
The tandem compound that coil panel is formed is heated.
Optionally, in minimum system circuit, the switch S4 in circuit shown in Fig. 4 can also be replaced with conducting wire.With for
Compared for preceding circuit shown in Fig. 4, in the circuit after replacement switch S3 one end be connected to coil panel 10 the other end and
Between endpoint 12, the other end for switching S3 is connected between the other end of coil panel 30 and endpoint 14, as shown in Figure 5.
In heating control circuit shown in Fig. 5, controller can be with 30 combined heated of control coil disk 20 and coil panel.This
In the case of kind, controller can control switch S2 to connect, and switch S1, switch S3 and switch S4 is controlled to disconnect.In alternating voltage
A cycle in first half cycle, controller can control power switch tube S G1 connect so that coil panel 20, coil panel
30th, power switch tube S G1 and capacitance C4 are composed in series resonance circuit.Later half period in a cycle of alternating voltage, control
Power switch tube S G2 can be controlled to be connected for device processed so that coil panel 30, coil panel 20, power switch tube S G2 and capacitance C3 strings
Connection composition resonance circuit.
Controller can be with 20 combined heated of control coil disk 10 and coil panel.In this case, controller can control
Switch S1 is connected and switch S2 and S3 is controlled to disconnect.First half cycle in a cycle of alternating voltage, controller can be controlled
Power switch tube S G1 conductings processed are so that coil panel 10, coil panel 20, power switch tube S G1 and capacitance C2 are composed in series resonance
Circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 conductings so that line
Circle disk 10, coil panel 20, power switch tube S G2 and capacitance C1 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 30 and coil panel 40.In this case, controller can be controlled
System switch S2 and S3 is disconnected, and the first half cycle in a cycle of alternating voltage, controller can control power switch tube S G3
Conducting is so that coil panel 30, coil panel 40, power switch tube S G3 and capacitance C4 are composed in series resonance circuit.In alternating voltage
A cycle in the later half period, controller can control power switch tube S G4 conducting so that coil panel 30, coil panel
40th, power switch tube S G4 and capacitance C3 are composed in series resonance circuit.
Controller can also realize the combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40.It such as can
It is connected with control switch S1, and switch S2 and switch S3 is controlled to disconnect.First half cycle in a cycle of alternating voltage, can
Power switch tube S G1 to be controlled to be connected with power switch tube S G3, and power switch tube S G2 and power switch tube S G4 is controlled to break
It opens.Later half period in a cycle of alternating voltage, control power switch tube S G2 are connected, and control with power switch tube S G4
Power switch tube S G1 and power switch tube S G3 processed are disconnected, so as to fulfill coil panel 10, coil panel 20, coil panel 30 and coil panel
40 work.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through by above-described embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, be saved while optimizing circuit
Cost.
It is appreciated that those skilled in the art can be shown in Fig. 5 circuit diagram on the basis of carry out simply modification or
Person modifies to the control mode of controller, for example, can by increase or decrease coil panel in heating control circuit or
Person increases or decreases the switch in heating control circuit, to realize in heating control circuit any two coil panel or any number of
The tandem compound that coil panel is formed is heated.
Correspondingly, the embodiment of the present invention also provides a kind of electromagnetic cooking appliance, which for example can be electricity
Magnetic stove etc., the electromagnetic cooking appliance can include the heating control circuit described in any embodiment of the present invention.The electromagnetism is cooked
Utensil of preparing food can realize the accurate control to heating location.
The optional embodiment of the embodiment of the present invention is described in detail above in association with attached drawing, still, the embodiment of the present invention is simultaneously
The detail being not limited in the above embodiment, can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
It will be appreciated by those skilled in the art that all or part of the steps of the method in the foregoing embodiments are can to pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, is used including some instructions so that single
Piece machine, chip or processor (processor) perform all or part of step of each embodiment the method for the application.It is and preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic disc or CD.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, should equally be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of heating control circuit for electromagnetic cooking appliance, which is characterized in that the heating control circuit includes：
Two or more control circuits a, wherein control circuit in described two or multiple control circuits includes two or more
A coil panel, it is each in other control circuits in described two or multiple control circuits in addition to one control circuit
A control circuit includes each control electricity in one or more coil panels and wherein described two or multiple control circuits
Road includes voltage source, power switch pipe and capacitance；
One or more switch, one or more switch are connected in described two or multiple control circuits and described two
Or between multiple control circuits；And
Controller, for passing through the power switch pipe controlled in each control circuit in described two or multiple control circuits
And one or more of switches come realize both arbitrary between the coil panel in described two or multiple control circuits or
The heating for the tandem compound that more persons are formed.
2. heating control circuit according to claim 1, which is characterized in that described two or multiple control circuits include the
One control circuit and second control circuit, wherein：
The first control circuit includes：First voltage source, first coil disk, the second coil panel, the first power switch pipe, second
Power switch pipe, the first capacitance and the second capacitance, wherein first power switch pipe and second power switch pipe series connection
It is connected in parallel on the both ends of the first voltage source later, described the is connected in parallel on after first capacitance and second capacitance series connection
The both ends of one voltage source, the first coil disk and second coil panel are in series, the first coil disk being in series and
First end point phase between one end of second coil panel and first power switch pipe and second power switch pipe
It connects and the second endpoint between the other end and first capacitance and second capacitance is connected；And
The second control circuit includes：The second voltage source, tertiary coil disk, the 4th coil panel, third power switch pipe, the 4th
Power switch pipe, third capacitance and the 4th capacitance, wherein the third power switch pipe and the 4th power switch pipe series connection
It is connected in parallel on the both ends of the second voltage source later, described the is connected in parallel on after the third capacitance and the 4th capacitance series connection
The both ends of two voltage sources, the tertiary coil disk and the 4th coil panel are in series, the tertiary coil disk being in series and
One end of 4th coil panel and the third endpoint phase between the third power switch pipe and the 4th power switch pipe
It connects and the 4th endpoint between the other end and the third capacitance and the 4th capacitance is connected.
3. heating control circuit according to claim 2, which is characterized in that
One end of the first coil disk is connected with the first end point, the other end of the first coil disk and described second
One end of coil panel is connected, and the other end of second coil panel is connected with second endpoint；And
One end of the tertiary coil disk is connected with the third endpoint, the other end of the tertiary coil disk and the described 4th
One end of coil panel is connected, and the other end of the 4th coil panel is connected with the 4th endpoint.
4. heating control circuit according to claim 3, which is characterized in that one or more of switches include first and open
It closes to the 9th switch, wherein：
The first switch is connected on the first end point and the first coil disk being in series and second coil
Between one end of disk；
Second switch is connected between the first coil disk and second coil panel；
Third switch is connected on second endpoint and the first coil disk being in series and second coil panel
Between the other end；
4th switch one end be connected between one end of the first end point and the first switch, the 4th switch it is another
End is connected between the third endpoint and the 7th switch；
One end of 5th switch is connected between the other end and the second switch of the first coil disk, the 5th switch
The other end be connected to the tertiary coil disk the other end and it is described 8th switch between；
One end of 6th switch is connected between the other end of second coil panel and third switch, the 6th switch
The other end be connected to the 4th coil panel the other end and it is described 9th switch between；
7th switch is connected on the third endpoint and the tertiary coil disk being in series and the 4th coil panel
Between one end；
8th switch is connected between the tertiary coil disk and the 4th coil panel；And
9th switch is connected on the 4th endpoint and the tertiary coil disk being in series and the 4th coil
Between the other end of disk.
5. heating control circuit according to claim 3, which is characterized in that one or more of switches include：
First single-pole double-throw switch (SPDT), first single-pole double-throw switch (SPDT) be connected on the first end point and it is described be in series described
Between one end of one coil panel and second coil panel, wherein the free end of first single-pole double-throw switch (SPDT) and described first
Endpoint is connected, a fixing end of first single-pole double-throw switch (SPDT) and the first coil disk being in series and described the
One end of two coil disk is connected, and another fixing end of first single-pole double-throw switch (SPDT) is connected to the third endpoint and described
Between the tertiary coil disk being in series and one end of the 4th coil panel；And
Second single-pole double-throw switch (SPDT), second single-pole double-throw switch (SPDT) be connected on the tertiary coil disk and the 4th coil panel it
Between, wherein the free end of second single-pole double-throw switch (SPDT) is connected with the tertiary coil disk, second single-pole double throw is opened
The fixing end closed is connected with the 4th coil panel, described in another fixing end of second single-pole double-throw switch (SPDT) is connected to
Between first coil disk and second coil panel.
6. heating control circuit according to claim 2, which is characterized in that
One end of second coil panel is connected with the first end point, the other end of second coil panel and described first
One end of coil panel is connected, and the other end of the first coil disk is connected with second endpoint；And
One end of 4th coil panel is connected with the third endpoint, the other end and the third of the 4th coil panel
One end of coil panel is connected, and the other end of the tertiary coil disk is connected with the 4th endpoint.
7. heating control circuit according to claim 6, which is characterized in that one or more of switches include：First
It switchs to the 4th switch, wherein：
The first switch is connected between the first coil disk and second coil panel；
One end of second switch is connected between the first switch and second coil panel, the other end of the second switch
It is connected between the tertiary coil disk and the 4th coil panel；
One end of third switch is connected between the other end of the first coil disk and second endpoint, the third switch
The other end be connected to the tertiary coil disk the other end and it is described 4th switch between；And
4th switch is connected on the other end and the institute of the tertiary coil disk being in series and the 4th coil panel
It states between the 4th endpoint.
8. heating control circuit according to claim 6, which is characterized in that one or more of switches include：
First switch, the first switch are connected between the first coil disk and second coil panel；
Second switch, one end of the second switch are connected between the first switch and second coil panel, this second is opened
The other end of pass is connected between the tertiary coil disk and the 4th coil panel；
Third switchs, and one end of third switch is connected between the other end of the first coil disk and second endpoint,
The other end of third switch is connected between the other end of the tertiary coil disk and the 4th endpoint.
9. heating control circuit according to claim 1, which is characterized in that the first voltage source and the second voltage
Source is homologous voltage source.
10. a kind of electromagnetic cooking appliance, which is characterized in that the electromagnetic cooking appliance includes any one in claim 1 to 9
Heating control circuit described in claim.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297137.8A CN108156684B (en) | 2017-12-08 | 2017-12-08 | Heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance |
| EP18885968.0A EP3678454A4 (en) | 2017-12-08 | 2018-04-28 | Heating control circuit for induction cooking appliance, and induction cooking appliance |
| PCT/CN2018/085002 WO2019109586A1 (en) | 2017-12-08 | 2018-04-28 | Heating control circuit for induction cooking appliance, and induction cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297137.8A CN108156684B (en) | 2017-12-08 | 2017-12-08 | Heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108156684A true CN108156684A (en) | 2018-06-12 |
| CN108156684B CN108156684B (en) | 2019-07-05 |
Family
ID=62466893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711297137.8A Active CN108156684B (en) | 2017-12-08 | 2017-12-08 | Heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3678454A4 (en) |
| CN (1) | CN108156684B (en) |
| WO (1) | WO2019109586A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099470A (en) * | 2019-05-17 | 2019-08-06 | 佛山市顺德区天思电器有限公司 | A kind of control device of coil disc of electric stove |
| CN111787654A (en) * | 2019-04-03 | 2020-10-16 | 佛山市顺德区美的电热电器制造有限公司 | Heating circuit of electromagnetic cooking appliance and electromagnetic cooking appliance |
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| EP2170010A2 (en) * | 2008-09-29 | 2010-03-31 | Hitachi Ltd. | Electromagnetic induction heating device |
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| CN106879095A (en) * | 2015-12-11 | 2017-06-20 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heater and its heating control circuit |
| CN206506730U (en) * | 2016-12-28 | 2017-09-19 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system and electromagnetism cooking equipment |
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| JPH0333993U (en) * | 1989-08-11 | 1991-04-03 | ||
| FR2902600B1 (en) * | 2006-06-14 | 2008-09-05 | Brandt Ind Sas | INDUCTION SYSTEM, METHOD FOR SUPPLYING AN INDUCTOR AND COOKTOP HAVING SUCH A SYSTEM |
| EP2515608B1 (en) * | 2011-04-19 | 2017-07-12 | BSH Hausgeräte GmbH | Domestic appliance |
| ITBA20150014U1 (en) * | 2014-04-02 | 2016-09-02 | Ribawood Sa | PALLETS IN ACCURATE STRUCTURE AND RELATIVE CONNECTOR FOR CROSSBEAM-SHOE EQUIPPED WITH MEANS OF EASY EXTRACTION |
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- 2017-12-08 CN CN201711297137.8A patent/CN108156684B/en active Active
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- 2018-04-28 EP EP18885968.0A patent/EP3678454A4/en active Pending
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| EP2170010A2 (en) * | 2008-09-29 | 2010-03-31 | Hitachi Ltd. | Electromagnetic induction heating device |
| CN202818656U (en) * | 2012-09-26 | 2013-03-20 | 张镇强 | Multistratum control type electromagnetic induction heating device |
| CN203775445U (en) * | 2013-11-15 | 2014-08-13 | 美的集团股份有限公司 | Electromagnetic heating system |
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| CN111787654A (en) * | 2019-04-03 | 2020-10-16 | 佛山市顺德区美的电热电器制造有限公司 | Heating circuit of electromagnetic cooking appliance and electromagnetic cooking appliance |
| CN110099470A (en) * | 2019-05-17 | 2019-08-06 | 佛山市顺德区天思电器有限公司 | A kind of control device of coil disc of electric stove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108156684B (en) | 2019-07-05 |
| WO2019109586A1 (en) | 2019-06-13 |
| EP3678454A4 (en) | 2020-11-18 |
| EP3678454A1 (en) | 2020-07-08 |
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