CN106162969A - Electromagnetic heater and resonance circuit - Google Patents
Electromagnetic heater and resonance circuit Download PDFInfo
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- CN106162969A CN106162969A CN201510164454.7A CN201510164454A CN106162969A CN 106162969 A CN106162969 A CN 106162969A CN 201510164454 A CN201510164454 A CN 201510164454A CN 106162969 A CN106162969 A CN 106162969A
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Abstract
The invention discloses the resonance circuit of a kind of electromagnetic heater, including: R-T tube；Resonance modules, resonance modules includes the first resonance coil and the second resonance coil, the first resonant capacitance and the second resonant capacitance, the first permutator and the second permutator, first resonance coil and the series connection of the second resonance coil, first resonant capacitance and the series connection of the second resonant capacitance, first resonance coil and second resonance coil of series connection are connected in parallel with the first resonant capacitance connected and the second resonant capacitance, and the first permutator and the second resonance coil are in parallel, the second permutator and the second resonant capacitance are in parallel；Controller, controller is by controlling the first permutator and the second permutator to change the resonant frequency of electromagnetic heater.This resonance circuit can change the resonant frequency of electromagnetic heater, reduces leading voltage when R-T tube is opened, and reduces the temperature rise of R-T tube.Invention additionally discloses a kind of electromagnetic heater.
Description
Technical field
The present invention relates to electromagnetic heating technique field, resonance circuit and one particularly to a kind of electromagnetic heater have
The electromagnetic heater of this resonance circuit.
Background technology
At present, single IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) EMR electromagnetic resonance electricity
Road typically uses parallel resonance mode, and it uses when operating in the resonant parameter realized under high-power premise, if the lowest
Power section runs, then occur the problem that
(1) IGBT is the most open-minded, opens moment IGBT transient current peak value high, is well over IGBT current peak specification
Limit, thus damage IGBT；
(2) IGBT heating is serious, need to strengthen to IGBT heat radiation (as increased fin, increasing rotation speed of fan etc.) with
Realize the temperature increase requirement of IGBT.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
To this end, it is an object of the present invention to propose the resonance circuit of a kind of electromagnetic heater, it is possible to change Electromagnetic Heating
The resonant frequency of device, reduces leading voltage when R-T tube is opened, and reduces the temperature rise of R-T tube.
Further object is that a kind of electromagnetic heater of proposition.
For reaching above-mentioned purpose, the resonance circuit of a kind of electromagnetic heater that the embodiment of the present invention proposes, including: resonance is opened
Guan Guan, the grounded emitter of described R-T tube；Resonance modules, described resonance modules includes the first resonance coil and second
Resonance coil, the first resonant capacitance and the second resonant capacitance, the first permutator and the second permutator, wherein, described
One resonance coil and described second resonance coil series connection, described first resonant capacitance and described second resonant capacitance series connection, described
First resonance coil and second resonance coil of series connection are connected in parallel with described the first resonant capacitance connected and the second resonant capacitance
Colelctor electrode with described R-T tube is connected afterwards, and described first permutator is in parallel with described second resonance coil, institute
State the second permutator in parallel with described second resonant capacitance；And controller, described controller and described R-T tube
Base stage is connected conducting and the disconnection controlling described R-T tube, described controller the most respectively with described first permutator
The end that controls be connected with the control end of described second permutator, described controller is by control described first permutator and institute
State the second permutator to change the resonant frequency of described electromagnetic heater.
The resonance circuit of electromagnetic heater according to embodiments of the present invention, first resonance coil and the of series connection in resonance modules
Two resonance coils are connected in parallel the rear and colelctor electrode phase of R-T tube with the first resonant capacitance connected and the second resonant capacitance
Even, and the first permutator is in parallel with the second resonance coil, the second permutator and the parallel connection of the second resonant capacitance, so controls
Device processed just can increase and decrease resonant capacitance and the resonance carrying out resonant operational by controlling the closed and disconnected of the first and second permutatoies
Inductance, changes the topological structure of resonance circuit, reaches to change the purpose of resonant frequency such that it is able to reduce resonance well
Leading voltage when switching tube is opened and the temperature rise of reduction R-T tube, it is to avoid R-T tube damages so that circuit can
Reliably and securely work.Further, by changing the resonant frequency of electromagnetic heater, it is also possible to realize electromagnetic heater
Continuous low power heats, and has widened the heating power scope of electromagnetic heater.
According to one embodiment of present invention, described first permutator and described second permutator are controlled when described controller
When all closing, described first resonance coil and described first resonant capacitance are in parallel to carry out resonant operational；When described controller control
When making described first permutator disconnection and control described second permutator Guan Bi, described first resonance coil and described second
Resonance coil is in parallel with described first resonant capacitance to carry out resonant operational again after connecting；When described controller controls described first
When permutator closes and controls described second permutator disconnection, described first resonance coil and described the first resonance connected
Electric capacity and the second resonant capacitance are in parallel to carry out resonant operational；When described controller controls described first permutator and described the
When two permutatoies all disconnect, the first resonance coil of described series connection and the second resonance coil and described the first resonance electricity connected
Hold and the second resonant capacitance is in parallel to carry out resonant operational.
According to one embodiment of present invention, the internal ring of the described first corresponding described electromagnetic heater of resonance coil, described the
The outer shroud of the corresponding described electromagnetic heater of two resonance coils, wherein, when described first permutator and described second conversion are opened
During Guan Jun Guan Bi, described electromagnetic heater runs with described internal ring mode of heating to carry out the first high power heating；When described
When first permutator disconnects and described second permutator closes, described electromagnetic heater is with described internal ring and described outer shroud
All mode of heatings run to carry out the second high power heating；When described first permutator Guan Bi and described second permutator break
When opening, described electromagnetic heater runs with described internal ring mode of heating to carry out the first low-power heating；When described first turn
Changing switch and described second permutator when all disconnecting, described electromagnetic heater is with described internal ring and described outer shroud mode of heating
Run to carry out the second low-power heating.Internal ring so can be selected with high power or low-power independent heating, it is also possible to realize
Internal ring and outer shroud heat with high power or low-power all simultaneously, it is achieved the change in the wider interval of heating surface (area) (HS and heating power
Change.
In some embodiments of the invention, described first permutator and described second permutator can be all relay,
Metal-oxide-semiconductor, controllable silicon or IGBT.
According to one embodiment of present invention, described R-T tube can be IGBT.
According to one embodiment of present invention, described electromagnetic heater also includes that filtration module, described filtration module are connected to
Between power supply and described resonance modules, described filtration module includes filter inductance and filter capacitor, one end of described filter inductance
Being connected with described power supply, the other end of described filter inductance is connected with one end of described filter capacitor, described filter capacitor another
One end ground connection, has primary nodal point, described first segment between the other end and one end of described filter capacitor of described filter inductance
Point is connected with described resonance modules.
Additionally, embodiments of the invention also proposed a kind of electromagnetic heater, it includes the humorous of above-mentioned electromagnetic heater
Shake circuit.
The electromagnetic heater of the embodiment of the present invention, by controlling the Guan Bi of the first and second permutatoies in resonance modules and breaking
Open and just can increase and decrease resonant capacitance and the resonant inductance carrying out resonant operational, change the topological structure of resonance circuit, reach to change
The purpose of resonant frequency such that it is able to reduce leading voltage when R-T tube is opened well and reduce R-T tube
Temperature rise, it is to avoid R-T tube damages so that circuit can reliably and securely work.Further, by changing Electromagnetic Heating
The resonant frequency of device, it is also possible to realize the heating of electromagnetic heater continuous low power, widened the heating of electromagnetic heater
Power bracket.
Wherein, described electromagnetic heater can include electromagnetic rice cooker, prevention electromagnetic pressure cooker and electromagnetic oven.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the resonance circuit of the electromagnetic heater according to one embodiment of the invention；And
Fig. 2 is the element chart participating in resonance under the four kinds of heating modes of electromagnetic heater according to one embodiment of the invention.
Reference:
Resonance circuit 100: R-T tube 10, controller 20, resonance modules 30；
Filtration module 200: filter inductance L0, filter capacitor C0；
Resonance modules 30: the first resonance coil L1, the first resonant capacitance C1, the second resonance coil L2, the second resonant capacitance
C2, the first permutator S1, the second permutator S2.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings describe the resonance circuit of the electromagnetic heater that the embodiment of the present invention proposes and there is this resonance circuit
Electromagnetic heater.
Fig. 1 is the circuit diagram of the resonance circuit of the electromagnetic heater according to one embodiment of the invention.As it is shown in figure 1, should
The resonance circuit 100 of electromagnetic heater includes: R-T tube 10, controller 20 and resonance modules 30.
Wherein, the grounded emitter of R-T tube 10, resonance modules 30 includes the first resonance coil L1 and the second resonance
Coil L2, the first resonant capacitance C1 and the second resonant capacitance C2, the first permutator S1 and the second permutator S2, the
One resonance coil L1 and the second resonance coil L2 series connection, the first resonant capacitance C1 and the second resonant capacitance C2 series connection, series connection
The first resonance coil L1 and the second resonance coil L2 and the first resonant capacitance C1 connected and the second resonant capacitance C2 in parallel
After connection, the colelctor electrode with R-T tube 10 is connected, and the first permutator S1 and the second resonance coil L2 is in parallel, the
Two permutator S2 and the second resonant capacitance C2 are in parallel.
It is to say, in the parallel resonance topological structure of the embodiment of the present invention, add the first permutator S1, second turn
Change switch S2, the second resonant capacitance C2 and the second resonance coil L2, and the first resonance coil L1 of connecting and second humorous
After the first resonant capacitance C1 that shaking coil L2 and connects and the second resonant capacitance C2 is connected in parallel, the first permutator S1 is again
In parallel with the second resonance coil L2 so that the second resonance coil L2 is controlled, the second permutator S2 again with the second resonance
Electric capacity C2 is in parallel to be controlled the second resonant capacitance C2.
As it is shown in figure 1, described controller 20 is connected to control described resonant switch with the base stage of described R-T tube 10
The conducting of pipe 10 and disconnection, controller 20 the most respectively with the first permutator S1 control end and the second permutator S2
Controlling end to be connected, controller 20 is by controlling the first permutator S1 and the second permutator S2 to change electromagnetic heater
Resonant frequency.
According to one embodiment of present invention, as it is shown in figure 1, R-T tube 10 can be IGBT, i.e. R-T tube
The E pole of the i.e. IGBT of the emitter stage of 10, the C pole of the i.e. IGBT of the colelctor electrode of R-T tube 10, the G pole of IGBT and control
Device 20 processed is connected, and controller 20 controls the turn-on and turn-off of IGBT by output pulse width modulation (PWM) signal.
In an embodiment of the present invention, when controller 20 controls the first permutator S1 and the second permutator S2 all closes,
First resonance coil L1 and the first resonant capacitance C1 is in parallel to carry out resonant operational；Open when controller 20 controls the first conversion
When closing S1 disconnection and control the second permutator S2 Guan Bi, after the first resonance coil L1 and the second resonance coil L2 series connection again
In parallel with the first resonant capacitance C1 to carry out resonant operational；When controller 20 controls the first permutator S1 Guan Bi and controls
When second permutator S2 disconnects, the first resonance coil L1 and the first resonant capacitance C1 connected and the second resonant capacitance C2
In parallel to carry out resonant operational；When controller 20 controls the first permutator S1 and the second permutator S2 all disconnects, string
The first resonance coil L1 and the second resonance coil L2 of connection is in parallel with the first resonant capacitance connected and the second resonant capacitance to enter
Row resonant operational.
Wherein, typically it is coil panel according to an example of the present invention, the first resonance coil L1 and the second resonance coil L2,
Such as inner and outer ring coil panel.Further, the first resonance coil L1 can the internal ring of corresponding electromagnetic heater, i.e. internal ring coil panel,
Second resonance coil can the outer shroud of corresponding electromagnetic heater, i.e. outer shroud coil panel.So, as the first permutator S1 and
When two permutator S2 all close, electromagnetic heater runs with the first internal ring mode of heating to carry out the first high power heating,
I.e. electromagnetic heater runs with monocycle high power heating mode；When the first permutator S1 disconnects and the second permutator S2
During Guan Bi, electromagnetic heater runs with the first inner and outer ring mode of heating to carry out the second high power heating, i.e. Electromagnetic Heating dress
Put and run with dicyclo high power heating mode；When the first permutator S1 Guan Bi and the second permutator S2 disconnect, electromagnetism
Heater runs with the second internal ring mode of heating to carry out the first low-power heating, and i.e. electromagnetic heater is with monocycle low-power
Heating mode runs；When the first permutator S1 and the second permutator S2 all disconnects, electromagnetic heater is with in second
Outer shroud mode of heating runs to carry out the second low-power heating, i.e. electromagnetic heater with the operation of dicyclo low-power heating mode.
It is concrete as in figure 2 it is shown, electromagnetic heater has four kinds of heating modes i.e. pattern one, pattern two, pattern three and pattern
Four, by controlling the first permutator S1 and the disconnection of the second permutator S2 and Guan Bi, change in resonance modules 30 and participate in
The resonant inductance of resonant operational and resonant capacitance, realize the switching between four kinds of patterns, it is possible to achieve electromagnetic heater is high
Low-power, single dicyclo mode of heating run.
Wherein, the first permutator S1 controls the break-make of the second resonance coil, and therefore, the first permutator S1 controls electromagnetism
Heater runs with monocycle or dicyclo mode of heating.Because the first resonant capacitance C1 and the second resonant capacitance C2 series connection, string
After connection, resonant capacitance value reduces, leading voltage when can reduce R-T tube such as IGBT opens, and reduces the temperature of IGBT
Rise, make whole circuit stability operate in low power state, therefore the second permutator S2 controls the high-low power of electromagnetic heater
Running status.Thus, by the first permutator S1 and the second permutator S2 is combined control, it is possible to achieve electromagnetism
Heater list dicyclo high-low power runs.
As in figure 2 it is shown, the corresponding dicyclo low-power heating mode of pattern one, now S1 and S2 all disconnects, and participates in the unit of resonance
Part is L1, C1, L2, C2；The corresponding dicyclo high power heating mode of pattern two, now S1 disconnects, and S2 closes, and participates in humorous
The element shaken is L1, C1, L2；The corresponding monocycle low-power heating mode of pattern three, now S1 Guan Bi, S2 disconnects, and participates in
The element of resonance is L1, C1, C2；The corresponding monocycle high power heating mode of pattern four, now S1 and S2 all closes, ginseng
It is L1, C1 with the element of resonance.Wherein, in Fig. 2,0 expression switches off, and 1 represents switch Guan Bi.
Therefore, in an embodiment of the present invention, electromagnetic heater multiple heating modes can be realized and run, not only widen electromagnetism
The heating power scope of heater, also increases the space of selection.
Specifically, in an example of the present invention, when heating power is less than or equal to 1000W, electromagnetic heater
Main control chip i.e. controller 20 is defaulted as low power state, is otherwise high power state.When user operation electromagnetic heater is transported
When certain small-power of row (such as 500W) heating or internal ring heating, main control chip controls the first permutator S1 Guan Bi and second
Permutator S2 disconnects, and resonance circuit is with the first resonance coil L1 and the first resonant capacitance C1 connected and the second resonance electricity
The mode holding C2 parallel connection participation resonance is run.When user operation electromagnetic heater runs certain high-power (such as 2000W)
When heating or inner and outer ring heating, main control chip controls the first permutator S1 and disconnects and the second permutator S2 Guan Bi, resonance
Circuit connect with the first resonance coil L1 and the second resonance coil L2 after participate in resonance in parallel with the first resonant capacitance C1 again
Mode is run.
Wherein, as it is shown in figure 1, electromagnetic heater also includes the filtering mould being made up of filter inductance L0 and filter capacitor C0
Block 200, processes for the power supply of 310V is filtered voltage stabilizing.Filtration module 200 is connected to power supply and resonance
Between module 30, filtration module 200 includes filter inductance L0 and filter capacitor C0, one end of filter inductance L0 and power supply
Being connected, the other end of filter inductance L0 is connected with one end of filter capacitor C0, the other end ground connection of filter capacitor C0, filter
There is between the other end and one end of filter capacitor C0 of ripple inductance L0 primary nodal point, primary nodal point and resonance modules 30 phase
Even.
In an embodiment of the present invention, the first permutator and the second permutator can be all powerful relay, MOS
Pipe, controllable silicon or IGBT.
In sum, the resonance circuit of the electromagnetic heater of the embodiment of the present invention is by controlling closing of permutator S1 and S2
Close and disconnect and change its topological structure, thus change the resonant frequency of electromagnetic heater.
The resonance circuit of electromagnetic heater according to embodiments of the present invention, first resonance coil and the of series connection in resonance modules
Two resonance coils are connected in parallel the rear and colelctor electrode phase of R-T tube with the first resonant capacitance connected and the second resonant capacitance
Even, and the first permutator is in parallel with the second resonance coil, the second permutator and the parallel connection of the second resonant capacitance, so controls
Device processed just can increase and decrease resonant capacitance and the resonance carrying out resonant operational by controlling the closed and disconnected of the first and second permutatoies
Inductance, changes the topological structure of resonance circuit, reaches to change the purpose of resonant frequency such that it is able to reduce resonance well
Leading voltage when switching tube is opened and the temperature rise of reduction R-T tube, it is to avoid R-T tube damages so that circuit can
Reliably and securely work.Further, by changing the resonant frequency of electromagnetic heater, it is also possible to realize electromagnetic heater
Continuous low power heats, and has widened the heating power scope of electromagnetic heater.
Additionally, embodiments of the invention also proposed a kind of electromagnetic heater, it includes the humorous of above-mentioned electromagnetic heater
Shake circuit.
Wherein, this electromagnetic heater can include electromagnetic rice cooker, prevention electromagnetic pressure cooker and electromagnetic oven.
The electromagnetic heater of the embodiment of the present invention, by controlling the Guan Bi of the first and second permutatoies in resonance modules and breaking
Open and just can increase and decrease resonant capacitance and the resonant inductance carrying out resonant operational, change the topological structure of resonance circuit, reach to change
The purpose of resonant frequency such that it is able to reduce leading voltage when R-T tube is opened well and reduce R-T tube
Temperature rise, it is to avoid R-T tube damages so that circuit can reliably and securely work.Further, by changing Electromagnetic Heating
The resonant frequency of device, it is also possible to realize the heating of electromagnetic heater continuous low power, widened the heating of electromagnetic heater
Power bracket.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or hidden
At least one this feature is included containing ground.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In flow chart or at this, any process described otherwise above or method description are construed as, and represent and include one
Or the module of code, fragment or the part of the executable instruction of the more step for realizing specific logical function or process,
And the scope of the preferred embodiment of the present invention includes other realization, wherein can not press order that is shown or that discuss,
Including according to involved function by basic mode simultaneously or in the opposite order, performing function, this should be by the present invention's
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or the logic described otherwise above at this and/or step, for example, it is possible to be considered as reality
The sequencing list of the executable instruction of existing logic function, may be embodied in any computer-readable medium, for instruction
Execution system, device or equipment (system such as computer based system, including processor or other can perform from instruction
System, device or equipment instruction fetch also perform the system instructed) use, or combine these instruction execution systems, device or set
Standby and use.For the purpose of this specification, " computer-readable medium " can be any can to comprise, store, communicate, propagate
Or transmission procedure for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and uses
Device.The more specifically example (non-exhaustive list) of computer-readable medium includes following: have one or more cloth
The electrical connection section (electronic installation) of line, portable computer diskette box (magnetic device), random access memory (RAM), only
Reading memorizer (ROM), erasable read only memory (EPROM or flash memory) of editing, fiber device, and
Portable optic disk read only memory (CDROM).It addition, computer-readable medium can even is that can print thereon described
The paper of program or other suitable media, because then can carry out such as by paper or other media are carried out optical scanning
Edit, interpret or be processed to electronically obtain described program with other suitable methods if desired, then stored
In computer storage.
Should be appreciated that each several part of the present invention can realize by hardware, software, firmware or combinations thereof.In above-mentioned reality
Execute in mode, software that multiple steps or method in memory and can be performed by suitable instruction execution system with storage or
Firmware realizes.Such as, if realized with hardware, with the most the same, available well known in the art under
Any one or their combination in row technology realize: have the logic gates for data signal realizes logic function
Discrete logic, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), existing
Field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is can
Completing instructing relevant hardware by program, described program can be stored in a kind of computer-readable recording medium,
This program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to be each
Individual unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated module was both
Can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.If described integrated module with
The form of software function module realizes and as independent production marketing or when using, it is also possible to be stored in a computer-readable
Take in storage medium.
Storage medium mentioned above can be read only memory, disk or CD etc..Although above it has been shown and described that
Embodiments of the invention, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention,
Above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (8)
1. the resonance circuit of an electromagnetic heater, it is characterised in that including:
R-T tube, the grounded emitter of described R-T tube；
Resonance modules, described resonance modules includes that the first resonance coil and the second resonance coil, the first resonant capacitance and second are humorous
Shake electric capacity, the first permutator and the second permutator, wherein, and described first resonance coil and described second resonance coil string
Connection, described first resonant capacitance and described second resonant capacitance series connection, the first resonance coil of described series connection and the second resonance line
Circle is connected in parallel the rear colelctor electrode phase with described R-T tube with described the first resonant capacitance connected and the second resonant capacitance
Even, and described first permutator is in parallel with described second resonance coil, described second permutator and described second resonance
Electric capacity is in parallel；And
Controller, described controller be connected with the base stage of described R-T tube to control the conducting of described R-T tube with
Disconnecting, described controller is connected with the control end controlling end and described second permutator of described first permutator the most respectively,
Described controller is by controlling described first permutator and described second permutator to change the humorous of described electromagnetic heater
Vibration frequency.
2. the resonance circuit of electromagnetic heater as claimed in claim 1, it is characterised in that wherein,
When described controller controls described first permutator and described second permutator all closes, described first resonance line
Circle and described first resonant capacitance are in parallel to carry out resonant operational；
When described controller controls described first permutator disconnection and controls described second permutator Guan Bi, described first
Resonance coil and described second resonance coil are in parallel with described first resonant capacitance to carry out resonant operational again after connecting；
When described controller controls described first permutator Guan Bi and controls described second permutator disconnection, described first
Resonance coil is in parallel with described the first resonant capacitance connected and the second resonant capacitance to carry out resonant operational；
When described controller controls described first permutator and described second permutator all disconnects, the first of described series connection
Resonance coil and the second resonance coil are in parallel with described the first resonant capacitance connected and the second resonant capacitance to carry out resonance work
Make.
3. the resonance circuit of electromagnetic heater as claimed in claim 2, it is characterised in that described first resonance coil pair
Should the internal ring of described electromagnetic heater, the outer shroud of the corresponding described electromagnetic heater of described second resonance coil, wherein,
When described first permutator and described second permutator all close, described electromagnetic heater adds with described internal ring
Hot mode runs to carry out the first high power heating；
When described first permutator disconnects and described second permutator closes, described electromagnetic heater is with described internal ring
Run with described outer shroud all mode of heatings to carry out the second high power heating；
When described first permutator Guan Bi and described second permutator disconnect, described electromagnetic heater heats with internal ring
Mode is run to carry out the first low-power heating；
When described first permutator and described second permutator all disconnect, described electromagnetic heater with described internal ring and
Described outer shroud all mode of heatings run to carry out the second low-power heating.
4. the resonance circuit of the electromagnetic heater as according to any one of claim 1-3, it is characterised in that described first
Permutator and described second permutator are relay, metal-oxide-semiconductor, controllable silicon or IGBT.
5. the resonance circuit of electromagnetic heater as claimed in claim 1, it is characterised in that described R-T tube is
IGBT。
6. the resonance circuit of electromagnetic heater as claimed in claim 1, it is characterised in that described electromagnetic heater is also
Including filtration module, described filtration module is connected between power supply and described resonance modules, and described filtration module includes filtered electrical
Sense and filter capacitor, one end of described filter inductance is connected with described power supply, the other end of described filter inductance and described filtering
One end of electric capacity is connected, the other end ground connection of described filter capacitor, the other end of described filter inductance and described filter capacitor
Having primary nodal point between one end, described primary nodal point is connected with described resonance modules.
7. an electromagnetic heater, it is characterised in that include the Electromagnetic Heating dress as according to any one of claim 1-6
The resonance circuit put.
8. electromagnetic heater as claimed in claim 7, it is characterised in that described electromagnetic heater includes electromagnetism electricity meal
Pot, prevention electromagnetic pressure cooker and electromagnetic oven.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164454.7A CN106162969B (en) | 2015-04-07 | 2015-04-07 | Electromagnetic heating device and resonant circuit thereof |
| PCT/CN2015/092983 WO2016161796A1 (en) | 2015-04-07 | 2015-10-27 | Electromagnetic heating device and resonance circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164454.7A CN106162969B (en) | 2015-04-07 | 2015-04-07 | Electromagnetic heating device and resonant circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106162969A true CN106162969A (en) | 2016-11-23 |
| CN106162969B CN106162969B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164454.7A Active CN106162969B (en) | 2015-04-07 | 2015-04-07 | Electromagnetic heating device and resonant circuit thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024139476A1 (en) * | 2022-12-29 | 2024-07-04 | 佛山市顺德区美的电热电器制造有限公司 | Control method and apparatus for electromagnetic heating circuit, and electromagnetic heating circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2822091Y (en) * | 2005-09-02 | 2006-09-27 | 深圳市拓邦电子科技股份有限公司 | Electromagnetic oven resonant circuit for realizing continuous low power to high power output |
| JP2012038621A (en) * | 2010-08-09 | 2012-02-23 | Mitsui Eng & Shipbuild Co Ltd | Induction heater and method for induction heating |
| CN102484907A (en) * | 2010-01-20 | 2012-05-30 | 松下电器产业株式会社 | Induction heating apparatus |
| CN204539514U (en) * | 2015-04-07 | 2015-08-05 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heater and resonant circuit |
-
2015
- 2015-04-07 CN CN201510164454.7A patent/CN106162969B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2822091Y (en) * | 2005-09-02 | 2006-09-27 | 深圳市拓邦电子科技股份有限公司 | Electromagnetic oven resonant circuit for realizing continuous low power to high power output |
| CN102484907A (en) * | 2010-01-20 | 2012-05-30 | 松下电器产业株式会社 | Induction heating apparatus |
| JP2012038621A (en) * | 2010-08-09 | 2012-02-23 | Mitsui Eng & Shipbuild Co Ltd | Induction heater and method for induction heating |
| CN204539514U (en) * | 2015-04-07 | 2015-08-05 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heater and resonant circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024139476A1 (en) * | 2022-12-29 | 2024-07-04 | 佛山市顺德区美的电热电器制造有限公司 | Control method and apparatus for electromagnetic heating circuit, and electromagnetic heating circuit |
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| CN106162969B (en) | 2019-12-31 |
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