CN108156684B - Heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance - Google Patents
Heating control circuit and electromagnetic cooking appliance for electromagnetic cooking appliance Download PDFInfo
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- CN108156684B CN108156684B CN201711297137.8A CN201711297137A CN108156684B CN 108156684 B CN108156684 B CN 108156684B CN 201711297137 A CN201711297137 A CN 201711297137A CN 108156684 B CN108156684 B CN 108156684B
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- control circuit
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
- 238000010411 cooking Methods 0.000 title claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 93
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H05B6/36—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, a control circuit in described two or multiple control circuits includes that each of two or more coil panels and other control circuits in addition to one control circuit control circuit include one or more coil panels, and wherein each control circuit includes voltage source, power switch tube and capacitor；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, the heating for the tandem compound that both any or more persons for being realized between the coil panel in described two or multiple control circuits by controlling power switch tube in each control circuit and one or more of switches are constituted.The accurate control to the same area different heating position may be implemented in it.
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 technique
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 in the related technology, is that a coil panel is controlled using one or two switching device to be added 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 utilizes.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a kind of heating control circuit for electromagnetic cooking appliance and electromagnetism culinary art
Utensil solves above-mentioned technical problem for solution or part.
To achieve the goals above, 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, wherein one in described two or multiple control circuits is controlled
Circuit processed includes two or more coil panels, its in described two or multiple control circuits in addition to one control circuit
Each of its control circuit control circuit includes one or more coil panels, and wherein described two or multiple controls are electric
Each of road control circuit includes voltage source, power switch tube and capacitor；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 tube and described one in each of described two or multiple control circuits control circuit
A or multiple switch is constituted come both any or 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.It can be simultaneously reached making full use of to the hardware in circuit, and improve the power of electromagnetic oven
Output performance.
The other feature and advantage of the embodiment of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to the embodiment of the present invention, and constitute part of specification, under
The specific embodiment in face is used to explain the present invention embodiment together, but does not constitute the limitation to the embodiment of the present invention.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
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is 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
It include: two or more control circuits, wherein a control circuit in described two or multiple control circuits may include two
A or multiple coil panels, other control circuits in described two or multiple control circuits in addition to one control circuit can
To include one or more coil panels, and each of wherein described two or multiple control circuits control circuit can be with
Including voltage source, power switch tube and capacitor；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 by control it is described two or
Power switch tube and one or more of switches in each of multiple control circuits control circuit is described to realize
The heating for the tandem compound that any the two or more persons between coil panel in two or more control circuits are constituted.The present invention
The heating control circuit that embodiment provides can carry out series connection group at least two coil panels of the time to the same area different location
Control is closed, to accurately control heating location.
Optionally, 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.
It optionally, may include two power switch tubes and two capacitors, wherein described two in each control circuit
It is connected in parallel on the both ends of voltage source after power switch tube series connection, is connected in parallel on the two of the voltage source after described two capacitor series connection
End.Coil panel in each control circuit is connected in series, one end of the coil panel of series connection and described two power switch tubes
Between endpoint be connected and the endpoint between the other end and described two capacitors is connected.
Optionally, the heating control circuit provided in an embodiment of the present invention for electromagnetic cooking appliance may 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, it may be implemented in heating control circuit provided in an embodiment of the present invention
The combined heated of four coil panels also may be implemented in the combined heated of middle any two or three coil panels.For example, may be implemented
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 coil panel 30 combined heated；The combined heated of coil panel 20, coil panel 30 and coil panel 40；Coil panel 10, coil panel
20, coil panel 30 and the combined heated of 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 include below two control circuits, the two control circuits by the heating control circuit to be used for electromagnetic cooking appliance
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 modifying, example
Such as by way of reasonably increasing control circuit and/or the connection relationship by increasing switch, reduction switch or modification 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 institute
Show, the heating control circuit for electromagnetic cooking appliance may include: first control circuit, second control circuit and controller
(not shown).Wherein, first control circuit may include: power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitor C1 and capacitor C2, voltage source P1, second control circuit may include: that power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitor C3 and capacitor 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, capacitor C1 and capacitor C2 series connection
20 are connected in series, one end of the coil panel 10 and coil panel 20 that are connected in series 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 capacitor C1 and the second capacitor 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: switch S1,10 He of coil panel that switch S1 is connected on endpoint 11 and is connected in series
Between one end of coil panel 20；Switch S2, switch S2 are connected between coil panel 10 and coil panel 20；And switch S3, switch
S3 is connected between endpoint 12 and the coil panel being connected in series 10 and the other end of 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, capacitor C3 and capacitor C4 series connection, coil panel 30 and coil panel 40 are connected 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 capacitor C3 and capacitor 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: switch S7,30 He of coil panel that switch S7 is connected on endpoint 13 and is connected in series
Between one end of coil panel 40；Switch S8, switch S8 are connected between coil panel 30 and coil panel 40；And switch S9, switch
S9 is connected between endpoint 14 and the coil panel being connected in series 30 and the other end of coil panel 40.
Heating control circuit shown in Fig. 2 can also include: switch S4, and one end of switch S4 is connected to endpoint 11 and opens
It closes between S1, the other end of switch S4 is connected between endpoint 13 and switch S7；One end of switch S5, switch S5 are connected to coil
Between the other end and switch S2 of disk 10, the other end of switch S5 is connected between the other end of coil panel 30 and switch S8；With
And switch S6, one end of switch S6 are connected between the other end of coil panel 20 and switch S3, the other end of switch S6 is connected to
Between the other end and switch S9 of coil panel 40.
Controller can realize line to power switch tube S G4 and switch S1 to S9 by control power switch tube S G1
Disk 10 is enclosed to the combined heated between coil panel 40.
Power switch tube 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 tube is one way conducting device.
Controller can be made by control power switch tube S G1 to SG4 and switch S7 extremely switching on and off for switch S9
The coil panel 40 obtained in the coil panel 10 and second control circuit in first control circuit is connected in series to realize combination
Heating, or the coil panel 20 in first control circuit and the coil panel in second control circuit 30 are connected in series to realize
Combination heating.
Controller can be made by control power switch tube S G1 to SG4 and switch S7 extremely switching on and off for switch S9
20 combined heated of coil panel 10 and coil panel in first control circuit is obtained, and/or the line in second control circuit can be made
Enclose disk 30 and 40 combined heated of coil panel.
Specifically, controller can control 30 combined heated of coil panel 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 controls rest switch and power switch tube disconnection, so that coil panel 20, coil panel 30, power switch tube
SG3 and capacitor C2 are composed in series resonance circuit, then in first half cycle electric current flow direction are as follows: anode → power of voltage source P2 is opened
Close pipe SG3 → switch S7 → 30 → switch of coil panel S5 → switch S2 → 20 → switch of coil panel S3 → capacitor 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 control rest switch and power switch tube disconnection, with
So that coil panel 20, coil panel 30, power switch tube S G3 and capacitor C4 are composed in series resonance circuit, then it is electric in first half cycle
The flow direction of stream are as follows: the anode of voltage source P2 → power switch tube S G3 → switch S7 → 30 → switch of coil panel S5 → switch S2 →
20 → switch of coil panel S6 → switch S9 → capacitor C4 → voltage source P2 cathode.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 and connect
It is logical, and rest switch and power switch tube disconnection are controlled, so that coil panel 20, coil panel 30, power switch tube S G2 and capacitor
C3 is composed in series resonance circuit, then in the flow direction of the interim electric current of second half are as follows: the anode of voltage source P2 → capacitor C3 → switch S9
→ switch S6 → 20 → switch of coil panel S2 → switch S5 → 30 → switch of coil panel 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
It closes S6, switch S2, switch S5, switch S7 and power switch tube S G4 to connect, and controls rest switch and power switch tube disconnection,
So that coil panel 20, coil panel 30, power switch tube S G4 and capacitor C3 are composed in series resonance circuit, then it is interim in second half
The flow direction of electric current are as follows: the anode of voltage source P2 → capacitor C3 → switch S9 → switch S6 → 20 → switch of coil panel S2 → switch S5
30 → switch of → coil panel S7 → power switch tube S G4 → voltage source P2 cathode.
Controller also can control 40 combined heated of coil panel 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 controls rest switch and power switch tube disconnection, so that coil panel 10, coil panel 40, power
Switching tube SG1 and capacitor C4 are composed in series resonance circuit, then in first half cycle electric current flow direction are as follows: the anode of voltage source P1 →
Power switch tube S G1 → switch S1 → 10 → switch of coil panel S5 → switch S8 → 40 → switch of coil panel S9 → capacitor 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
It closes S8, switch S5, switch S1, switch S4 and power switch tube S G4 to connect, and controls rest switch and power switch tube disconnection,
So that coil panel 10, coil panel 40, power switch tube S G4 and capacitor C1 are composed in series resonance circuit, then in first half cycle
The flow direction of electric current are as follows: the anode of voltage source P1 → capacitor C1 → switch S3 → switch S6 → 40 → switch of coil panel S8 → switch S5
10 → switch of → coil panel S1 → switch S4 → power switch tube S G4.
Controller can control 20 combined heated of coil panel 10 and coil panel.In this case, controller can control
Switch S1 to switch S3 is connected and control switch S4 to S9 is disconnected.First half cycle in a cycle of alternating voltage, control
Device can control power switch tube S G1 conducting so that coil panel 10, coil panel 20, power switch tube S G1 and capacitor C2 series connection
Form resonance circuit, then in first half cycle electric current flow direction are as follows: the anode of voltage source P1 → power switch tube S G1 → switch S1
10 → switch of → coil panel S2 → 20 → switch of coil panel S3 → capacitor C2 → voltage source P1 cathode.At one of alternating voltage
Later half period in period, controller can control power switch tube S G2 conducting so that coil panel 10, coil panel 20, power
Switching tube SG2 and capacitor C1 are composed in series resonance circuit, then in the flow direction of the interim electric current of second half are as follows: the anode of voltage source P1
→ capacitor C1 → switch S3 → 20 → switch of coil panel S2 → 10 → switch of coil panel S1 → power switch tube S G2 → voltage source P1
Cathode.
Controller can control 40 combined heated of coil panel 30 and coil panel.In this case, controller can control
Switch S7 to switch S9 is connected and control switch S1 to S6 is disconnected.First half cycle in a cycle of alternating voltage, control
Device can control power switch tube S G3 conducting so that coil panel 30, coil panel 40, power switch tube S G3 and capacitor C4 series connection
Form resonance circuit, then in first half cycle electric current flow direction are as follows: the anode of voltage source P2 → power switch tube S G3 → switch S7
30 → switch of → coil panel S8 → 40 → switch of coil panel S9 → capacitor C4 → voltage source P2 cathode.At one of alternating voltage
Later half period in period, controller can control power switch tube S G4 conducting so that coil panel 30, coil panel 40, power
Switching tube SG4 and capacitor C3 are composed in series resonance circuit, then in the flow direction of the interim electric current of second half are as follows: and the anode of voltage source P2 →
Capacitor C3 → switch S9 → 40 → switch of coil panel S8 → 30 → switch of coil panel S7 → power switch tube S G4 → voltage source P2
Cathode.
The combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40 also may be implemented in controller.Such as it can
It is disconnected with control switch S4 to switch S6, control switch S1 to switch S3 and switch S7 to switch S9 is connected.In alternating voltage
First half cycle in a cycle can control power switch tube S G1 and connect with power switch tube S G3, and controls 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 is controlled power switch tube S G1 and power switch tube S G3 and disconnected, to realize 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 simply modified 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 constituted is heated.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through through the foregoing embodiment
Heating can accurately control heating location, and realize and make full use of to hardware in circuit.
Fig. 3 shows the heating control circuit according to an embodiment of the invention for electromagnetic cooking appliance.Such as Fig. 3 institute
Show, the heating control circuit for electromagnetic cooking appliance may include: first control circuit, second control circuit and controller
(not shown).Wherein, first control circuit may include: power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitor C1 and capacitor C2, voltage source P1, second control circuit may include: that power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitor C3 and capacitor 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, capacitor C1 and capacitor C2 series connection
20 are connected in series, one end of the coil panel 10 and coil panel 20 that are connected in series 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 capacitor C1 and the second capacitor 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, capacitor C3 and capacitor C4 series connection, coil panel 30 and coil panel 40 are connected 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 capacitor C3 and capacitor 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 the coil panel being connected in series 10 and one end of 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 connected in series
Disk 10 is connected with one end of coil panel 20, another fixing end c of the single-pole double-throw switch (SPDT) S31 be connected to endpoint 13 with mutually go 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,
Wherein the free end a of the single-pole double-throw switch (SPDT) S32 is connected with coil panel 30, and the one of the single-pole double-throw switch (SPDT) S32 is fixed
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 control 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 tube 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 tube is one way conducting device.
The combined heated of coil panel 20 and coil panel 30 may be implemented in controller.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 the free end a connection of control 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 capacitor 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 conducting so that coil panel 30, coil panel 20, power
Switching tube SG2 and capacitor 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
Device processed can control power switch tube S G1 conducting so that coil panel 10, coil panel 20, power switch tube S G1 and capacitor C2 string
Connection composition resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 and lead
It passes to so that coil panel 10, coil panel 20, power switch tube S G2 and capacitor C1 are composed in series resonance circuit.
The combined heated of coil panel 30 and coil panel 40 also may be implemented in controller.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
Device can control power switch tube S G3 conducting so that coil panel 30, coil panel 40, power switch tube S G3 and capacitor C4 series connection
Form resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G4 conducting
So that coil panel 30, coil panel 40, power switch tube S G4 and capacitor C3 are composed in series resonance circuit.
The combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40 also may be implemented in controller.Such as it can
Fixing end b, and the free end a of control single-pole double-throw switch (SPDT) S32 are connected to control the free end a of single-pole double-throw switch (SPDT) S31
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 is opened
It closes pipe SG3 to connect, and controls power switch tube S G2 and power switch tube S G4 and disconnect.After in a cycle of alternating voltage
Half period, control power switch tube S G2 is connected with power switch tube S G4, and controls power switch tube S G1 and power switch tube
SG3 is disconnected, to realize that coil panel 10, coil panel 20, coil panel 30 and coil panel 40 work.
It is appreciated that those skilled in the art can be shown in Fig. 3 circuit diagram on the basis of simply modified 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 constituted is heated.
Control coil disk 10 to the combination of a variety of series systems between coil panel 40 can be passed through through the foregoing embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, save 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 institute
Show, the heating control circuit for electromagnetic cooking appliance may include: first control circuit, second control circuit and controller
(not shown).Wherein, first control circuit may include: power switch tube S G1 and power switch tube S G2, coil panel 10
With coil panel 20, capacitor C1 and capacitor C2, voltage source P1, second control circuit may include: that power switch tube S G3 and power are opened
Close pipe SG4, coil panel 30 and coil panel 40, capacitor C3 and capacitor 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, capacitor C1 and capacitor C2 series connection
20 are connected in series, one end of the coil panel 10 and coil panel 20 that are connected in series 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 capacitor C1 and the second capacitor 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, capacitor C3 and capacitor C4 series connection, coil panel 30 and coil panel 40 are connected 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 capacitor C3 and capacitor 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, can also include switch S1 to switch S4 in heating control circuit.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, the other end of switch 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 connected in series
Between the other end and endpoint 14 of coil panel 30 and coil panel 40.
Controller can control 30 combined heated of coil panel 20 and coil panel.In this case, controller can control out
It closes S2 to connect with switch S3, and control switch S1 and switch S4 is disconnected.First half cycle in a cycle of alternating voltage, control
Device processed can control power switch tube S G1 and connect so that coil panel 30, coil panel 20, power switch tube S G1 and capacitor C2 string
Connection composition resonance circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 and lead
It passes to so that coil panel 30, coil panel 20, power switch tube S G2 and capacitor 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 control switch S2 and S3 are disconnected.First half cycle in a cycle of alternating voltage, controller can be controlled
Power switch tube S G1 conducting processed is so that coil panel 10, coil panel 20, power switch tube S G1 and capacitor C2 are composed in series resonance
Circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 conducting so that line
Circle disk 10, coil panel 20, power switch tube S G2 and capacitor C1 are composed in series resonance circuit.
The combined heated of coil panel 30 and coil panel 40 also may be implemented in controller.In this case, controller can be controlled
It makes switch S4 to connect and control switch S2 and S3 disconnection, the first half cycle in a cycle of alternating voltage, controller can be with
Control power switch tube S G3 conducting so that coil panel 30, coil panel 40, power switch tube S G3 and capacitor 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 conducting so that
Coil panel 30, coil panel 40, power switch tube S G4 and capacitor C3 are composed in series resonance circuit.
The combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40 also may be implemented in controller.Such as it can
It is connected with control switch S1 with switch S4, and control switch S2 and switch S3 is disconnected.Before in a cycle of alternating voltage
Half period can control power switch tube S G1 and connect with power switch tube S G3, and controls 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 control power switch tube S G1 and power switch tube S G3 and disconnect, to realize 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 through the foregoing embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, save while optimizing circuit
Cost.
It is appreciated that those skilled in the art can simply to be modified on the basis of circuit diagram shown in Fig. 4 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 constituted is heated.
Optionally, in minimum system circuit, the switch S4 in circuit shown in Fig. 4 can also be replaced with conducting wire.With replace
Compared for preceding circuit shown in Fig. 4, in the circuit after substitution one end of switch S3 be connected to coil panel 10 the other end and
Between endpoint 12, the other end of switch 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 control 30 combined heated of coil panel 20 and coil panel.This
In the case of kind, controller can control switch S2 connection, and control switch S1, switch S3 and switch S4 are disconnected.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
30, power switch tube S G1 and capacitor C4 are composed in series resonance circuit.Later half period in a cycle of alternating voltage, control
Device processed can control power switch tube S G2 conducting so that coil panel 30, coil panel 20, power switch tube S G2 and capacitor C3 string
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 control switch S2 and S3 are disconnected.First half cycle in a cycle of alternating voltage, controller can be controlled
Power switch tube S G1 conducting processed is so that coil panel 10, coil panel 20, power switch tube S G1 and capacitor C2 are composed in series resonance
Circuit.Later half period in a cycle of alternating voltage, controller can control power switch tube S G2 conducting so that line
Circle disk 10, coil panel 20, power switch tube S G2 and capacitor C1 are composed in series resonance circuit.
The combined heated of coil panel 30 and coil panel 40 also may be implemented in controller.In this case, controller can be controlled
It makes switch S2 and S3 to disconnect, 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 capacitor 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
40, power switch tube S G4 and capacitor C3 are composed in series resonance circuit.
The combined heated of coil panel 10, coil panel 20, coil panel 30 and coil panel 40 also may be implemented in controller.Such as it can
With control switch S1 connection, and control switch S2 and switch S3 is disconnected.First half cycle in a cycle of alternating voltage, can
It is connected with controlling power switch tube S G1 with power switch tube S G3, and it is disconnected to control power switch tube S G2 and power switch tube S G4
It opens.In the later half period in a cycle of alternating voltage, control power switch tube S G2 is connected with power switch tube S G4, and is controlled
Power switch tube S G1 and power switch tube S G3 processed are disconnected, to realize 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 through the foregoing embodiment
Heating, can accurately control heating location, and reduce the quantity of switching device in circuit, save 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 simply modified 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 constituted is heated.
Correspondingly, the embodiment of the present invention also provides a kind of electromagnetic cooking appliance, which for example can be electricity
Magnetic furnace etc., the electromagnetic cooking appliance may include heating control circuit described in any embodiment of the present invention.The electromagnetism is cooked
The accurate control to heating location may be implemented in utensil of preparing food.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in 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 scope 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 where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of the steps of each embodiment the method for the application.And it is 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 or disk.
In addition, any 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, equally should 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, wherein the first 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 the first control circuit
A control circuit includes one or more coil panels, and each of wherein described two or multiple control circuits control electricity
Road includes voltage source, power switch tube and capacitor, wherein the first control circuit includes: first voltage source, first coil
Disk, the second coil panel, the first power switch tube, the second power switch tube, first capacitor and the second capacitor, wherein first function
Be connected in parallel on the both ends of the first voltage source after rate switching tube and second power switch tube series connection, the first capacitor and
The both ends of the first voltage source, the first coil disk and second coil panel are connected in parallel on after the second capacitor series connection
It is connected in series, one end of the first coil disk and second coil panel that are connected in series and first power switch tube and described
First end point between second power switch tube is connected and between the other end and the first capacitor and second capacitor
Second endpoint is connected；
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 by controlling the power switch tube in each of described two or multiple control circuits control circuit
And it is one or more of switch come realize between the coil panel in described two or multiple control circuits it is any the two or
The heating for the tandem compound that more persons are constituted.
2. heating control circuit according to claim 1, which is characterized in that remove institute in described two or multiple control circuits
The other control circuits stated except first control circuit include second control circuit,
The second control circuit includes: the second voltage source, tertiary coil disk, the 4th coil panel, third power switch tube, the 4th
Power switch tube, third capacitor and the 4th capacitor, wherein the third power switch tube and the 4th power switch tube 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 capacitor and the 4th capacitor series connection
The both ends of two voltage sources, the tertiary coil disk and the 4th coil panel are connected in series, the tertiary coil disk being connected in series and
One end of 4th coil panel and the third endpoint phase between the third power switch tube and the 4th power switch tube
It connects and the 4th endpoint between the other end and the third capacitor and the 4th capacitor 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 are opened including first
Guan Zhi nine is switched, in which:
The first switch is connected on the first end point and the first coil disk and second coil being connected in series
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 connected in series and second coil panel
Between the other end；
4th switch one end be connected between the first end point and one end of 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 the 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 and the 4th coil being connected in series
Between one end of disk；
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 and the 4th coil being connected in series
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) are connected on the first end point and described to be connected in series
Between one coil panel and one end of 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 connected 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 one end of the tertiary coil disk and the 4th coil panel that are connected in series；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, and another fixing end of second single-pole double-throw switch (SPDT) is connected to described
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 of the 4th coil panel and the third
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, in which:
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 and the 4th coil panel being connected in series
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；
One end of third switch, 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 2, 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 has including any in claim 1 to 9
Heating control circuit described in one 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 CN108156684A (en) | 2018-06-12 |
| CN108156684B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 |
| CN105530719A (en) * | 2014-09-30 | 2016-04-27 | 深圳市鑫汇科股份有限公司 | Half-bridge multi-burner switching electromagnetic induction heating control device and method |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-08 CN CN201711297137.8A patent/CN108156684B/en active Active
-
2018
- 2018-04-28 WO PCT/CN2018/085002 patent/WO2019109586A1/en unknown
- 2018-04-28 EP EP18885968.0A patent/EP3678454A4/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105530719A (en) * | 2014-09-30 | 2016-04-27 | 深圳市鑫汇科股份有限公司 | Half-bridge multi-burner switching electromagnetic induction heating control device and method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108156684A (en) | 2018-06-12 |
| WO2019109586A1 (en) | 2019-06-13 |
| EP3678454A4 (en) | 2020-11-18 |
| EP3678454A1 (en) | 2020-07-08 |
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