CN205812426U - A kind of electromagnetic induction heater circuit and household electrical appliances thereof - Google Patents
A kind of electromagnetic induction heater circuit and household electrical appliances thereof Download PDFInfo
- Publication number
- CN205812426U CN205812426U CN201620558976.5U CN201620558976U CN205812426U CN 205812426 U CN205812426 U CN 205812426U CN 201620558976 U CN201620558976 U CN 201620558976U CN 205812426 U CN205812426 U CN 205812426U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- arresting element
- electromagnetic induction
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims description 12
- 235000013305 food Nutrition 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003733 optic disk Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
This utility model provides a kind of electromagnetic induction heater circuit and has the household electrical appliances of this heater circuit, and wherein one end of voltage sample module is connected with one end of synchronous circuit, and controller is according to the magnitude of voltage V of voltage sample module1Signal controls arresting element drive circuit, and then controls arresting element and change duty, and wherein voltage sample module is integrated in the controller, or voltage sample module is connected to described controller independent of the second end of described controller and voltage sample module；I.e. this utility model judges power-down conditions by the synchronous circuit output signal of electromagnetic induction heating household electrical appliances self carries out sampling and controls electric discharge, compared with the voltage signal exported after current rectifying and wave filtering circuit being carried out sampling with prior art, avoid the erroneous judgement that when pulling out electricity, voltage upper punch causes, and change in voltage information more accurately can be obtained in the very first time, judge the generation of power down exactly so that the control of electric discharge is simple and convenient.
Description
Technical field
This utility model relates to the field of electromagnetic induction heating household electrical appliances, and be specifically related to a kind of electromagnetic induction heater circuit and
A kind of household electrical appliances with this heater circuit, particularly to a kind of electromagnetic oven with this heater circuit.
Background technology
GB GB4706.1 the 22.5th article requires that electrical equipment disconnects from power supply when voltage peak, in 1 second upon opening, uses
One will not produce, to measured value, the instrument significantly affected, measure the voltage between each pin of plug, and this voltage should be less than 34V.
But, electromagnetic induction heating electric equipment products exist the energy storage components and parts such as electrochemical capacitor of rectifying and wave-filtering, after pulling out plug, storage
The electric energy of energy components and parts storage can not be released immediately, causes plug two ends to there is residual voltage, and this residual voltage is pulling out 1
Still being up to more than 100VAC in Miao, specify considerably beyond safe voltage, human body can be damaged by this.Want for reaching this safety
Ask, need according to power down a situation arises control discharge circuit release remaining capacity.
Proposing the safety protection circuit of a kind of plug in prior art, voltage power-fail detection circuit is adopted by its single-chip microcomputer
Collect to voltage feedback signal process, it may be judged whether power down, if judging power down, control load discharge voltage loop come into force.
This voltage power-fail detection circuit is arranged on the outfan of rectification circuit.
In the prior art, the voltage detecting circuit of electromagnetic induction heater circuit is generally arranged at the output of rectification circuit
End, owing to its sample port front end exists the electrochemical capacitor strobed, when causing pulling out electricity, returns after sampled voltage upper punch again
Falling, when not having big arresting element, this process duration is more than 400ms.And after 400ms, the electricity of system spare is
Seldom, even less than to maintain controller normally to work.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art to provide one to obtain quickly and accurately
Take down electrical information and control of discharge electromagnetic induction heater circuit simply and easily and there are the household electrical appliances of this heater circuit.
For achieving the above object, the technical solution of the utility model is:
A kind of electromagnetic induction heater circuit, including:
Power supply, for providing civil power for described heater circuit；
Rectification circuit, the first end of described rectification circuit is connected with described power supply；
Resonance circuit, the first end of described resonance circuit is connected with the second end of described rectification circuit；
Synchronous circuit, the first end of described synchronous circuit is connected with the second end of described resonance circuit；
Voltage sample module, the first end of described voltage sample module is connected with the second end of described synchronous circuit；
Arresting element, the first end of described arresting element connects the second end of described rectification circuit, described arresting element
Second end connects the first end of arresting element drive circuit；
Described arresting element drive circuit, the second end of described arresting element drive circuit connects controller；
Described controller, according to the magnitude of voltage V of voltage sample module1Signal controls described arresting element drive circuit, enters
And control described arresting element and change duty, described voltage sample module is integrated in the controller, or described electricity
Pressure sampling module is connected to described controller independent of the second end of described controller and described voltage sample module.
In this utility model one embodiment, described controller is used for judging described magnitude of voltage V1Whether reach default low
Voltage threshold V0, and control described arresting element drive circuit according to judged result, and then control described arresting element change work
Make state.
In this utility model one embodiment, described arresting element is the fan for Electromagnetic Heating heat radiation, described electric discharge
Element driving circuit is the drive circuit driving fan to rotate.
In this utility model one embodiment, described drive circuit receive from described controller first driving signal and
Two driving signal, wherein, when described controller judges described magnitude of voltage V1Reach default low voltage threshold V0Time, described in drive
Galvanic electricity road receive from described controller first driving signal, and control described fan rotate discharge；When described control
When device judges the household electrical appliances comprising described electromagnetic induction heater circuit work or needs heat radiation, described drive circuit receives from institute
State the two driving signal of controller, and control described fan and rotate and dispel the heat.
In this utility model one embodiment, the range of choice of described low voltage threshold is 160V≤V0≤200V。
In this utility model one embodiment, described drive circuit controls described fan and starts to rotate the fan carrying out discharging
Turn-on time T1It is set smaller than 1000ms.
This utility model additionally provides the household electrical appliances of a kind of electromagnetic induction heating, and described household electrical appliances include any of the above-described kind of electromagnetism sense
Answer heater circuit.
In this utility model one embodiment, described controller is additionally operable to judging described magnitude of voltage V1Whether reach default
Low voltage threshold V0Judge whether described household electrical appliances are in holding state before, if it is determined that described household electrical appliances are in holding state,
Then utilize any of the above-described kind of electromagnetic induction heater circuit, according to the magnitude of voltage V of voltage sample module1Signal controls arresting element and drives
Galvanic electricity road, and then control arresting element change duty.
In this utility model one embodiment, described household electrical appliances are the electric food warmers of electromagnetic oven or Electromagnetic Heating.
The beneficial effects of the utility model are, owing to have employed following setting: the first end of voltage sample module with
Second end of synchronous circuit connects, and described voltage sample module is integrated in the controller, or described voltage sample module
The second end independent of described controller and described voltage sample module is connected to described controller, thus described controller depends on
Magnitude of voltage V according to voltage sample module1Signal controls described arresting element drive circuit, and then controls the change of described arresting element
Duty；Thus, this utility model is by sampling to the synchronous circuit output signal of electromagnetic induction heating household electrical appliances self
Judge power-down conditions and control electric discharge, in prior art, the voltage signal of output after current rectifying and wave filtering circuit being sampled
Compare, it is to avoid the erroneous judgement that when pulling out electricity, voltage upper punch causes, and voltage more accurately can be got in the very first time and become
Change information, judges the generation of power down exactly, so that the control of discharge procedures is simple and convenient.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the present invention is further described, wherein:
Fig. 1 is the voltage sampling circuit figure of prior art；
Fig. 2 is the schematic block diagram of the electromagnetic induction heater circuit according to this utility model one embodiment；
Fig. 3 is the control of discharge flow chart of the electromagnetic induction heater circuit according to this utility model one embodiment；
Fig. 4 is the control of discharge flow chart of the electromagnetic induction heater circuit according to another embodiment of this utility model.
Detailed description of the invention
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
This utility model is further described in detail by body embodiment.It should be noted that in the case of not conflicting, this Shen
Feature in embodiment please and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but, this practicality
Novel can implement to use other to be different from other modes described here, therefore, protection domain of the present utility model is also
Do not limited by following public specific embodiment.
Fig. 2 shows the schematic block diagram of the electromagnetic induction heater circuit according to this utility model one embodiment.
As in figure 2 it is shown, according to electromagnetic induction heater circuit of the present utility model, including power supply, be used for be described in add thermoelectricity
Road provides civil power；Rectification circuit, the first end of described rectification circuit is connected with described power supply；Resonance circuit, described resonance circuit
The first end be connected with the second end of described rectification circuit；Synchronous circuit, the first end of described synchronous circuit and described resonance electricity
Second end on road connects；Voltage sample module, the first end of described voltage sample module connects with the second end of described synchronous circuit
Connect；Arresting element, the first end of described arresting element connects the second end of described rectification circuit, the second end of described arresting element
Connect the first end of arresting element drive circuit；Described arresting element drive circuit, the second of described arresting element drive circuit
End connects controller；Described controller, according to the magnitude of voltage V of voltage sample module1Signal controls described arresting element and drives electricity
Road, and then control described arresting element change duty, described voltage sample module is integrated in the controller, or institute
State voltage sample module and be connected to described controller independent of the second end of described controller and described voltage sample module.
Wherein, it is called the unidirectional current pulsed that described filter circuit (or rectification circuit) is used for the convert alternating current of civil power,
It is then passed through inductance and electric capacity is filtered, the unidirectional current of output smoothing, normally work for described arresting element；Described resonance electricity
Road is that the principle utilizing LC parallel resonance produces high-frequency alternating current, makes the electromagnetic induction heating dish of the described resonance circuit of access be formed
High-frequency electromagnetic eddy current.Filter circuit and resonance circuit are all known custom circuits in existing electromagnetic induction heating system, this
Application is no longer discussed in detail.
In the prior art, voltage sampling circuit is usual as it is shown in figure 1, V end is connected to controller AD sample port, due to
There is the electrochemical capacitor strobed in its sample port front end, when causing pulling out electricity, falls after rise after V end sampled voltage upper punch again, when
When not having big arresting element, this process duration is more than 400ms.And after 400ms, the electricity of system spare seldom,
Even less than to maintain controller normally to work.Synchronous circuit is generally used for controlling the switch of IGBT and synchronizes, when electromagnetic induction adds
When the household electrical appliances of heat are in holding state, example synchronous circuit output end voltage is alternating current voltage after rectifying and wave-filtering,
Can normally reflect the state of current voltage, owing to its power down waveform is smooth and without upper punch, therefore, provides at this utility model
Electromagnetic induction heater circuit in, voltage sample position is arranged on its synchronous circuit outfan, with synchronous circuit outfan electricity
Press as the foundation judging power down, thus evaded the time-consuming of voltage upper punch and erroneous judgement problem, therefore in the situation that power down occurs
Time, described voltage sample module can get signal in the very first time and send to controller, and controller is further according to this letter
Number judgement control described arresting element drive circuit, and then control described arresting element change duty discharge.
According to an embodiment of the present utility model, controller noted above is used for judging described magnitude of voltage V1Whether reach default
Low voltage threshold V0, and control described arresting element drive circuit according to judged result, and then control the change of described arresting element
Duty.Described controller such as can realize above-mentioned judgement by comparator.
In an embodiment of the present utility model, described arresting element be for Electromagnetic Heating heat radiation fan, described in put
Electric device drive circuit is the drive circuit driving fan to rotate.Described arresting element drive circuit can such as be connect by relay
On-off opens the electric loop at described arresting element place to change the duty of described arresting element.
In an embodiment of the present utility model, described drive circuit receives the first driving signal from described controller
With two driving signal, wherein, when described controller judges described magnitude of voltage V1Reach default low voltage threshold V0Time, described
Drive circuit receive from described controller first driving signal, and control described fan rotate discharge；When described control
Device processed judge comprise described electromagnetic induction heater circuit household electrical appliances work or need heat radiation time, described drive circuit receive from
The two driving signal of described controller, and control described fan rotate dispel the heat.
Specifically, as it is shown on figure 3, controller receives the magnitude of voltage V that voltage sample module obtains1, relatively described magnitude of voltage V1
Whether reach default low voltage threshold V0If, V1≤V0, described drive circuit receives the first driving from described controller
Signal, and control described fan rotate discharge.If it addition, V1＞ V0, the most described controller judges described household electrical appliances whether work
Make or need heat radiation；If described household electrical appliances work or need heat radiation, described drive circuit receives from described controller
Two driving signal, and control described fan rotate dispel the heat；Otherwise control described arresting element drive circuit and close fan.
In an embodiment of the present utility model, the range of choice of described low voltage threshold is 160V≤V0≤200V.Existing
There is arresting element in technology can be attached to the resistance in discharge circuit or the power consumption of electromagnetic induction heating electrical equipment self
Element, such as fan, charactron, liquid crystal display screen etc. or a combination thereof.In view of fan or its fan motor, there is little electricity
Resistance, generally can individually connect, and to be in operation be not safety-critical, thus is particularly well-suited to quick vent discharge magnetic strength
Answer in heating electrical appliance circuit store remaining capacity, and need not increase electrical equipment stand-by power consumption, therefore in the present embodiment with
Fan is as arresting element.Owing to safety specifies, in 1 second upon opening, measured value will not be produced with one and significantly affect
Instrument, measure the voltage between each pin of plug, this voltage should be less than 34V.Therefore, the residual voltage in circuit should 1s it
Inside being released to less than 34V, through many experiments, recording the average power down time of startup fan electric discharge when 200V voltage is
0.65s, the average power down time starting fan electric discharge when 180V voltage is 0.89s, starts fan electric discharge when 160V voltage
Average power down time be 0.98s, when 120V voltage start fan average power down time be 1.34s.In order to ensure can be
Electric discharge, low voltage threshold V is completed in the time 1s that safety specifies0Lower limit be chosen for 160V.Further, since supply network may
Producing fluctuation, specify in GB12325-90,220V mains voltage fluctuation range maximum is less than+7% ,-10%, namely exists
During electrical network instability, the fluctuation range of voltage is between 198V-235.4V, therefore, when voltage is slightly below 220V, it may be possible to send out
Give birth to power down and be likely due to the fluctuation of electrical network, the erroneous judgement caused in order to avoid power network fluctuation, and consider that China Power Grids is actual
Fluctuation situation, is chosen for 200V by the upper limit of low voltage threshold.Additionally, in other examples, described arresting element also may be used
To be discharge resistance, charactron, liquid crystal display screen etc., described low voltage threshold is set also dependent on above-mentioned principle.
In an embodiment of the present utility model, described drive circuit controls described fan and starts to rotate the wind carrying out discharging
Fan T turn-on time1It is set smaller than 1000ms.Thus ensure to be discharged to safe voltage within the time 1s that safety specifies.
In an embodiment of the present utility model, it is provided that the household electrical appliances of a kind of electromagnetic induction heating, described household electrical appliances include
State the electromagnetic induction heater circuit of any one.
According to an embodiment of the present utility model, the controller of above-mentioned household electrical appliances is additionally operable to judging described magnitude of voltage V1Whether
Reach default low voltage threshold V0Judge whether described household electrical appliances are in holding state, if it is determined that described household electrical appliances are in and treat before
Machine state, then utilize any of the above-described kind of electromagnetic induction heater circuit, according to the magnitude of voltage V of voltage sample module1Signal controls to put
Electric device drive circuit, and then control arresting element change duty.
Specifically, as shown in Figure 4, the discharge process of described electromagnetic induction heater circuit is followed successively by: detects and judges to comprise
Whether the household electrical appliances of described electromagnetic induction heater circuit are in holding state；If it is, voltage sample module samples synchronous circuit
Output end voltage, obtains current magnitude of voltage V1；Controller judges described magnitude of voltage V1Whether reach default low voltage threshold
V0；If V1≤V0, then controller controls arresting element drive circuit and starts the electric discharge of described fan；If V1＞ V0, then controller
Judge whether the household electrical appliances comprising described electromagnetic induction heater circuit work or need heat radiation；If its work or needs dissipate
Heat, then start described fan；Otherwise close fan；If it addition, the household electrical appliances comprising described electromagnetic induction heater circuit are not located
In holding state, then compare the signal of synchronous circuit outfan；Whether the household electrical appliances judging to comprise described electromagnetic induction heater circuit
Work or need heat radiation；If its work or need heat radiation, then control starting fan；Otherwise close fan.
Especially, when described controller judges the work of described household electrical appliances or needs heat radiation, if these household electrical appliances are surprisingly pulled out
Electricity, voltage remaining in circuit can be released by fan and other consuming components.
In an embodiment of the present utility model, described household electrical appliances are the electric food warmers of electromagnetic oven or Electromagnetic Heating.But, this
The household electrical appliances of bright electromagnetic induction heating are not limited to the electric food warmer of electromagnetic oven or Electromagnetic Heating, it is also possible to be the electricity such as kettle, drinking water boiler
The household electrical appliances of magnetic induction heating.
In sum, the electromagnetic induction heater circuit of this utility model embodiment and the household electrical appliances of electromagnetic induction heating, control
Device foundation judges power-down conditions to the sampled signal of synchronous circuit outfan, and starts its arresting element when determining generation power down
Discharge.Which obviate the erroneous judgement that voltage upper punch causes when pulling out electricity, and can get in the very first time more accurate
Change in voltage information, judge the generation of power down exactly, carry out control of discharge simply and easily, thus meet national standard
Or European standard is to the electric discharge requirement after power down.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention
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 to use
In the sequencing list of the executable instruction realizing 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 hold from instruction
Row 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 pass
Defeated program is for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and the dress that uses
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following: have the electricity of one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory
(ROM), erasable read only memory (EPROM or flash memory), the fiber device edited, and portable optic disk is read-only deposits
Reservoir (CDROM).It addition, computer-readable medium can even is that and can print the paper of described program thereon or other are suitable
Medium, because then can carry out editing, interpreting or if desired with it such as by paper or other media are carried out optical scanning
His suitable method is processed to electronically obtain described program, is 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.Above-mentioned
In embodiment, the 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), on-the-spot
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that and realize all or part of step that above-described embodiment method is carried
Suddenly the program that can be by completes to instruct relevant hardware, and described program can be stored in a kind of computer-readable storage medium
In matter, 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
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated mould
Block both can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.Described integrated module is such as
When fruit is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer
In read/write memory medium.The storage medium of above-mentioned use can be read only memory, disk or CD etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention is limited by claims and equivalent thereof.
Claims (9)
1. an electromagnetic induction heater circuit, including:
Power supply, for providing civil power for described heater circuit；
Rectification circuit, the first end of described rectification circuit is connected with described power supply；
Resonance circuit, the first end of described resonance circuit is connected with the second end of described rectification circuit；
Synchronous circuit, the first end of described synchronous circuit is connected with the second end of described resonance circuit；
Voltage sample module, the first end of described voltage sample module is connected with the second end of described synchronous circuit；
Arresting element, the first end of described arresting element connects the second end of described rectification circuit, the second of described arresting element
End connects the first end of arresting element drive circuit；
Described arresting element drive circuit, the second end of described arresting element drive circuit connects controller；
Described controller, described controller is according to the magnitude of voltage V of voltage sample module1Signal controls described arresting element and drives electricity
Road, and then control described arresting element change duty, described voltage sample module is integrated in the controller, or institute
State voltage sample module and be connected to described controller independent of the second end of described controller and described voltage sample module.
2. electromagnetic induction heater circuit as claimed in claim 1, it is characterised in that described controller is used for judging described voltage
Value V1Whether reach default low voltage threshold V0, and control described arresting element drive circuit according to judged result, and then control
Described arresting element changes duty.
3. electromagnetic induction heater circuit as claimed in claim 2, it is characterised in that described arresting element is for Electromagnetic Heating
The fan of heat radiation, described arresting element drive circuit is the drive circuit driving fan to rotate.
4. electromagnetic induction heater circuit as claimed in claim 3, it is characterised in that described drive circuit receives from described control
First driving signal and two driving signal of device processed, wherein, when described controller judges described magnitude of voltage V1Reach default
Low voltage threshold V0Time, described drive circuit receives the first driving signal from described controller, and controls described fan and turn
Move and discharge；When described controller judges the household electrical appliances comprising described electromagnetic induction heater circuit work or needs heat radiation,
Described drive circuit receives from the two driving signal of described controller, and controls described fan and rotate and dispel the heat.
5. the electromagnetic induction heater circuit as described in claim 3 or 4, it is characterised in that the selection model of described low voltage threshold
Enclosing is 160V≤V0≤200V。
6. electromagnetic induction heater circuit as claimed in claim 5, it is characterised in that described drive circuit controls described fan and opens
Begin to rotate fan T turn-on time carrying out discharging1It is set smaller than 1000ms.
7. the household electrical appliances of an electromagnetic induction heating, it is characterised in that described household electrical appliances include as according to any one of claim 1-6
Electromagnetic induction heater circuit.
8. household electrical appliances as claimed in claim 7, it is characterised in that described controller is additionally operable to judging described magnitude of voltage V1Whether
Reach default low voltage threshold V0Judge whether described household electrical appliances are in holding state, if it is determined that described household electrical appliances are in and treat before
Machine state, then utilize the electromagnetic induction heater circuit as according to any one of claim 1-6, according to the electricity of voltage sample module
Pressure value V1Signal controls arresting element drive circuit, and then controls arresting element change duty.
9. household electrical appliances as claimed in claim 7, it is characterised in that described household electrical appliances are the electric food warmers of electromagnetic oven or Electromagnetic Heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558976.5U CN205812426U (en) | 2016-06-12 | 2016-06-12 | A kind of electromagnetic induction heater circuit and household electrical appliances thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558976.5U CN205812426U (en) | 2016-06-12 | 2016-06-12 | A kind of electromagnetic induction heater circuit and household electrical appliances thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205812426U true CN205812426U (en) | 2016-12-14 |
Family
ID=58142569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620558976.5U Active CN205812426U (en) | 2016-06-12 | 2016-06-12 | A kind of electromagnetic induction heater circuit and household electrical appliances thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205812426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803404A (en) * | 2017-04-27 | 2018-11-13 | 浙江苏泊尔家电制造有限公司 | Discharge circuit system, method and the cooking apparatus of residual voltage |
-
2016
- 2016-06-12 CN CN201620558976.5U patent/CN205812426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803404A (en) * | 2017-04-27 | 2018-11-13 | 浙江苏泊尔家电制造有限公司 | Discharge circuit system, method and the cooking apparatus of residual voltage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204538995U (en) | The electromagnetic heater of cooking apparatus and cooking apparatus | |
| CN103672995B (en) | The air quantity autocontrol method of range hood and range hood | |
| CN107708243B (en) | Electromagnetic heating cooker and control method and control device thereof | |
| TW201723318A (en) | Fan driver system and fan driver analog chip | |
| CN106160534B (en) | The electromagnetic heater and its method for heating and controlling of cooking apparatus, cooking apparatus | |
| CN105509325B (en) | Water heater and its water data acquisition method | |
| CN205812426U (en) | A kind of electromagnetic induction heater circuit and household electrical appliances thereof | |
| KR102619655B1 (en) | Cooking apparatus and controlling method thereof | |
| CN203447082U (en) | Electric pressure cooker and control device thereof | |
| CN109209962A (en) | Fan detection chip, fan detection method and fan detection system | |
| CN105628317A (en) | Water leakage detection circuit for household appliances, electric kettle and control method thereof | |
| CN111385927B (en) | Electromagnetic heating appliance and control method and control device thereof | |
| CN108991905A (en) | Infrared measurement of temperature method, system and cooking apparatus for cooking apparatus | |
| CN205430655U (en) | Hybrid heating control circuit and electromagnetic heating equipment | |
| JP5812307B2 (en) | Power socket and electrical event detection method | |
| CN106556997B (en) | Detection method, equipment and the circuit and printing equipment of fixing heating failure in printing equipment | |
| CN205430656U (en) | Hybrid heating control circuit and electromagnetic heating equipment | |
| CN201732939U (en) | Intelligent socket | |
| CN105757731B (en) | The control method of electromagnetic oven and electromagnetic oven | |
| CN203447084U (en) | Electric pressure cooker and automatic cover overturning device thereof | |
| CN204063179U (en) | Electromagnetic oven | |
| CN104168679A (en) | Induction cooker and its discharge method | |
| EP4195873A1 (en) | Heating seat ring voltage self-adaption method, electronic device, and storage medium | |
| CN207232808U (en) | Heating control apparatus and cooking apparatus | |
| CN106658794A (en) | Heating control method of electromagnetic heating device and electromagnetic heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |