CN2613702Y - Microwave oven - Google Patents
Microwave oven Download PDFInfo
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- CN2613702Y CN2613702Y CNU012805254U CN01280525U CN2613702Y CN 2613702 Y CN2613702 Y CN 2613702Y CN U012805254 U CNU012805254 U CN U012805254U CN 01280525 U CN01280525 U CN 01280525U CN 2613702 Y CN2613702 Y CN 2613702Y
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- circuit
- inverter control
- control circuit
- microwave
- microwave oven
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/68—Circuits for monitoring or control
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- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
A microwave oven of the utility model utmost suppresses disturbance to the communication which uses ISM frequency band, and is provided with a rectifier circuit (2) which is connected with the alternating current supply of the commercial power (1) and capable of doing full-wave rectification of the alternating current, and an inverter circuit (3) is connected between the output terminals of the rectifier circuit (2). A magnetron (6) is connected to the inverter circuit (3) via a high-frequency transformer (4) and a high pressure rectifier circuit (5). The alternating current supply of the commercial power (1) is further provided with a zero crossing detect circuit (9) which once detects the zero crossing of the alternating current supply of the commercial power (1) will output an impulse signal of 'H' electric level to a counting circuit (10), wherein the counting circuit (10) counts the impulse signal and outputs 'H' and 'L' signals at a ratio of 18 impulses L/2 impulses H to control circuit (7) and halt circuit (7 a) of the inverter.
Description
Technical field
The utility model relates to a kind of microwave oven with structure of the driving by inverter circuit controlled microwave generating means.
Background technology
In recent years, also be within the family packaged type equipment each other, between packaged type equipment and its auxiliary device, carry out wireless connections between packaged type equipment and household electrical appliance etc.On the network in such family,, use communication technology little power consumption, that utilize fainter electric wave because communication distance is short.
One of communication technology of using on such household internal network has bluetooth (" Bluetooth
TM" registered trade mark of Ai Likesen company, down with) etc. wireless network.Bluetooth uses one of the industry that distributes in the world according to the electric wave method, chemistry, therapeutic medical frequency band (ISM frequency band), be that the electric wave of 2.4GHz frequency band communicates.The ISM frequency band is a frequency band that can more freely use, easy to use, and its shortcoming is to have a large amount of wave interference.
For example microwave oven is to adopt the microwave of the 2450MHz utilize one of ISM frequency band food to be carried out the structure of induction heating.In this case, from the electric wave of microwave oven main body leakage or the reception of interfere with wireless communications and TV, or human body is adversely affected, for it being prevented the electric wave method from stipulating the electro magnetic amount of microwave oven.Therefore, must the electro magnetic amount that the microwave oven main body is leaked out be suppressed below setting.
Therefore but as mentioned above, bluetooth is to utilize the communication technology of faintness wave, and according to the output of distance between microwave oven and the bluetooth and magnetron, the electric wave of some quantity of leaking out from the microwave oven main body can impact.
Particularly recently, employing possesses the power supply that mains frequency is transformed to the inverter circuit that boosts behind 20～30kHz as the driving magnetron power supply.In this case, two phase places that are formed on the mains ac power supply make the structure of magnetron work.Therefore, microwave radiation is approximately often arranged when driven by magnetron, the communication of using faintness wave is had very big influence.
For example Fig. 7 represents to have the relation of the microwave oven of said structure and the distance between the bluetooth and communication capacity.Solid line A represents that magnetron is output as the situation of 500W in Fig. 7, and solid line B represents that magnetron is output as the situation of 800W.As shown in Figure 7, the communication capacity the when distance between microwave oven and the bluetooth is 0.5 meter is, adds under the situation of thermal output 500W to be 50KB/s, and is roughly 0KB/s under the situation of 800W.Again, even heating is output as 500W, communication capacity also was roughly 0KB/s when the distance between microwave oven and bluetooth was 0.25 meter.
The utility model is In view of the foregoing made, and its purpose is to provide, even make the structure of magnetron work in two phase places of mains ac power supply, also can do one's utmost to suppress the obstruction to the communication of the electric wave that uses the ISM frequency band.
Summary of the invention
Microwave oven of the present utility model possesses: rectification circuit is connected with the AC power of civil power and the AC power of civil power is carried out full-wave rectification; Inverter circuit is connected between the lead-out terminal of described rectification circuit, is made of resonant circuit and switch element; Inverter control circuit, lead-out terminal is connected with described inverter circuit, in order to the conducting of the switch element of controlling described inverter circuit with end; Microwave generating apparatus is driven to produce microwave by described inverter circuit; Controlling circuit of microwave oven, its lead-out terminal is connected with an input terminal of described inverter control circuit, in order to control the driving of described microwave generating apparatus, it is characterized in that, also possess: be connected between the AC power and described inverter control circuit of civil power, zero crossing detection circuit in order to the zero crossing of the AC power that detects civil power, and described inverter control circuit possesses when heating is cooked makes described microwave generating apparatus stop the halt circuit that drives off and on according to the detection signal from described zero crossing detection circuit.
In above-mentioned microwave oven, also possess: the communication check circuit that detects the radio communication of the ISM frequency band that uses 2.4GHz, the lead-out terminal of described communication check circuit is connected in another input terminal of inverter control circuit, and described halt circuit is according to making microwave generating apparatus stop off and on driving from the detection signal of described zero crossing detection circuit with from the detection signal of the radio communication of described communication check circuit.
In above-mentioned microwave oven, also possess: the counting circuit of integral multiple that is connected the cycle of the AC power that is set at civil power between described zero crossing detection circuit and the inverter control circuit, in order to driving time microwave generating apparatus.
In above-mentioned microwave oven, described inverter control circuit is arranged in and makes the input that utilizes under the situation that microwave generating apparatus stops to come from described zero crossing detection circuit, the length in 1 cycle of the AC power that to make its time that stops be civil power and with the cycle synchronisation of the AC power of civil power.
In above-mentioned microwave oven, possesses setting about whether carrying out the indicating circuit of the indication that intermittently stops, the lead-out terminal of described indicating circuit is connected on the input terminal of inverter control circuit, and described inverter control circuit only is set to carry out intermittently under the situation of carrying out intermittent oscillation in the input from described indicating circuit and stops.
Microwave oven of the present utility model possesses: rectification circuit is connected with the AC power of civil power and the AC power of civil power is carried out full-wave rectification; Inverter circuit is connected between the lead-out terminal of described rectification circuit, is made of resonant circuit and switch element; Inverter control circuit, its lead-out terminal is connected with described inverter circuit, in order to the conducting of the switch element of control inverter circuit with end; Microwave generating apparatus is driven to produce microwave by described inverter circuit; Controlling circuit of microwave oven, lead-out terminal is connected with an input terminal of described inverter control circuit, in order to control the driving of described microwave generating apparatus, it is characterized in that, also possess: input terminal is connected with described rectification circuit and lead-out terminal is connected with another input terminal of described inverter control circuit, be used to detect the converter whether voltage after described rectification circuit rectification is lower than assigned voltage, and described inverter control circuit possesses when heating is cooked makes described microwave generating apparatus stop the halt circuit that drives off and on according to the voltage detecting result from described converter.
In above-mentioned microwave oven, possesses setting about whether carrying out the indicating circuit of the indication that intermittently stops, the lead-out terminal of described indicating circuit is connected on the input terminal of inverter control circuit, and described inverter control circuit only is set to carry out intermittently under the situation of carrying out intermittent oscillation in the input from described indicating circuit and stops.
In above-mentioned microwave oven, the time that described halt circuit stops to drive is arranged to 2.5 milliseconds.
Adopt said structure, even the time period that does not produce microwave is also arranged when heating cooking, therefore can be the time slot of this time period as the radio communication of the ISM frequency band that uses 2.4GHz such as bluetooth.
In this case, adopt such structure, the communication check circuit of the radio communication of the ISM frequency band that detect to use 2.4GHz promptly is set, states halt circuit according to making microwave generating apparatus stop off and on driving from the detection signal of described zero crossing detection circuit with from the detection signal of the radio communication of described communication check circuit.Adopt said structure, only in the time may hindering microwave communication, carry out intermittently stop mode, therefore microwave launcher is stopped.
Therefore,, just when the output of microwave generating apparatus surpasses the setting that radio communication is made a difference, just carry out intermittently stop mode, can microwave generating apparatus be stopped with this as said structure.
Adopt said structure, can after microwave generating apparatus stops, driving once again immediately, therefore, utilize the method that microwave generating apparatus is stopped to do one's utmost to suppress to prolong heating time a lot of situations.
Again, because the stopping period of the microwave generating apparatus in the intermittence stop mode is set at the integral multiple in the cycle of mains ac power supply, or make the time period that microwave generating apparatus stops and the cycle synchronisation of mains ac power supply, can set the dwell time section of microwave generating apparatus with fairly simple formation.
Also have, carry out the intermittently indicating circuit of stop mode owing to can also be provided for indicating, can be according to environment be set select whether to carry out intermittently stop mode suitably of microwave oven, therefore easy to use.
Description of drawings
Fig. 1 represents the utility model the 1st embodiment, is the circuit diagram of the general structure of expression microwave oven.
Fig. 2 represents the oscillogram of each several part, (a) is the input voltage of mains ac power supply, (b) is the output signal of zero crossing detection circuit, (c) is the output signal of counting circuit, (d) is the operating current of magnetron.
Fig. 3 represents to add the relation of thermal output and communication capacity.
Fig. 4 represents the utility model the 2nd embodiment, and is suitable with Fig. 1.
Fig. 5 represents the utility model the 3rd embodiment, and is suitable with Fig. 1.
Fig. 6 is the oscillogram of each one, (a) be the rectifier output voltage waveform of rectification circuit, (b) provide to the counter-rotating input terminal of converter and the voltage waveform of non-counter-rotating input terminal, (c) output pulse waveform of converter (d) is the operating current waveform of magnetron.
Fig. 7 is the key diagram of the utility model problem that will solve, the distance between expression microwave oven and the bluetooth and the relation of communication capacity.
Concrete example
Below with reference to Fig. 1～Fig. 3 the utility model the 1st embodiment is described.At first, Fig. 1 represents microwave oven structure of the present utility model, is connecting on the mains ac power supply 1 this alternating current is carried out connecting inverter circuit 3 between the lead-out terminal of rectification circuit 2 described rectification circuits 2 of full-wave rectification.Though there is not detailed icon, described inverter circuit 3 is by constituting as switch elements such as the primary side coil 4a of the high frequency transformer 4 of resonance coil and resonant circuit that resonant capacitor constitutes, IGBT and inertia diode.
Again, the secondary coil 4b of described high frequency transformer 4 goes up the magnetron 6 that connects as microwave generating apparatus by high-voltage rectifier 5.Described high-voltage rectifier 5 has capacitor and diode (all not shown).
Also have, the switch element of described inverter circuit 3 forms by 7 pairs of conductings of inverter control circuit with by the structure of controlling.Described inverter control circuit 7 inputs are from the command signal of controlling circuit of microwave oven 8.Described controlling circuit of microwave oven 8 forms the structure that comprises microcomputer etc., can access the input signal from cooking menu (heating intensity) configuration switch and cooking time configuration switch, starting switch (all not shown)
Therefore, in a single day inverter control circuit 7 receives the instruction from controlling circuit of microwave oven 8, just according to the ON time of importing the heating intensity determine switch element of setting, makes inverter circuit 3 work.By means of this, the mains ac power supply powers to magnetron 6 by rectification circuit 2, inverter circuit 3, high-voltage rectifier 5.
On the other hand, connecting zero crossing detection circuit 9 on the described mains ac power supply 1, the output S1 of described zero crossing detection circuit 9 is provided for counting circuit 10.As Fig. 3 (a) with (b), described zero crossing detection circuit 9 is exported the pulse signal of " H " level when detecting the zero crossing of mains ac power supply 1.
Again, the output S2 of described counting circuit 10 is provided for the halt circuit 7a of described inverter control circuit 7.The output S2 of counting circuit 10 reaches at 18 o'clock at the pulse number from zero crossing detection circuit 9 and switches to " H " level as described in shown in Fig. 2 (c), simultaneously count value is resetted, and then, be to switch to " L " at 2 o'clock at pulse number, simultaneously count value is resetted.
Adopt again, in case described halt circuit 7a obtains the signal of " H " level, inverter control circuit 7 just makes switch element end, and stops to provide to magnetron 6 structure of voltage.In case and halt circuit 7a obtains the signal of " L " level, inverter control circuit 7 just according to the commands for controlling inverter circuit of controlling circuit of microwave oven 8, drives magnetron 6.That is inverter control circuit 7 and controlling circuit of microwave oven 8 work as control device in the present embodiment.
Therefore when heating cooking, inverter control circuit 3 is carried out the stop mode at intermittence that drives the action of magnetron 6 in regular turn repeatedly and make the action that magnetron 6 stops.So, in the present embodiment, driving the length that the driving magnetron time is set to 9 cycles of mains ac power supply 1, the dwell time that magnetron 6 is stopped to be set to the length (16～20 milliseconds) in 1 cycle of mains ac power supply 1.Make dwell time that magnetron 6 stops if about below 40 milliseconds, needn't carry out heat run when then driving magnetron 6 once again and just can carry out work immediately.
Consequently, the operating current waveform of magnetron 6 is shown in Fig. 2 (d).Also have, the operating current that also has magnetron 6 during driving is 0 time period (about 1～2 millisecond).This is because in paddy portion magnetron 6 idle causes of the pulsating current output voltage of rectification circuit 2.
The inventor is shown in Fig. 3 to the experimental result of the relation of the communication capacity that adds thermal output and bluetooth of microwave oven here.This experiment is the microwave oven of the microwave oven of present embodiment and existing structure (making the structure of magnetron continuous firing during heating cooking) to be arranged at the position of leaving 0.5 meter of bluetooth respectively carry out.In Fig. 3, dotted line is represented the experimental result of the microwave oven of present embodiment, and solid line is represented the experimental result of the microwave oven of existing structure.As shown in Figure 3, the microwave oven of present embodiment is littler to the communication influence that utilizes bluetooth than existing result's microwave oven.
The communication mode of bluetooth adopt 79 communication conditions (spectacle) of existing with 1MHz unit at 2402～2480MHz frequency band with per 625 microns, be the frequency spectrum diffusion mode (calling " frequency agility " in the following text) of frequency agility type of the speed change at random of per second 1600 times.That is to say that the minimal communications unit of bluetooth (time gap) is 625 microseconds, is 1.25 milliseconds (625 microseconds * 2) in transceiver.Therefore, as long as the time gap of 1.25 milliseconds * 2=2.5 millisecond is arranged, just can carry out transceiver reliably.
To this, in the present embodiment, magnetron 6 intermittences are stopped, dwell time is set at 16～20 milliseconds simultaneously.Thereby can be used the dwell time of this magnetron 6 as time gap, can keep the communication of bluetooth in the heating cooking time with this.
Again, adopting in the present embodiment and making the dwell time of magnetron 6 is the size of the one-period of mains ac power supply 1, simultaneously with the structure of the cycle synchronisation of the AC power 1 of civil power.Therefore, can constitute intermittently stop mode fairly simplely.And to make the length of dwell time of magnetron 6 and the length ratio of its driving time be 1/9, therefore can suppress because the efficiency of heating surface decline that dwell time causes is set.
Also have, as shown in Figure 3, when adding thermal output less than 500W, even use the microwave oven of existing structure, the communication of bluetooth also can fully be kept.Therefore in the present embodiment, also can adopt such structure, promptly be set at 500W when above in the output of magnetron, controlling circuit of microwave oven 8 is carried out intermittently stop modes by inverter control circuit 7, be set at 500W when following in output, make magnetron 6 continue to drive.Adopting such structure, is when not hindering the low output of communication, magnetron is stopped at the electric wave that spills from microwave oven Vent.
Fig. 4 represents the utility model the 2nd embodiment.Below to describing with the 1st embodiment difference.The part identical with the 1st embodiment then is marked with identical symbol.This 2nd embodiment possesses bluetooth 11, it is characterized in that, formation can be carried out the structure of two-way communication with not shown packaged type equipment, forms simultaneously to carry out the intermittently structure of stop mode when utilizing the communication that bluetooth carries out detecting.
Above-mentioned bluetooth 11 is made of the transceiver commutation circuit 13 that possesses communication antenna 12, receiving circuit 14, transtation mission circuit 15, transceiver control circuit 16, received signal treatment circuit 17, microwave generation timing circuit 18, microwave generation circuit 19 and Bluetooth control circuit 20.Connecting bluetooth testing circuit 21 on the described transceiver control circuit 16 as the communication check means again.The output S3 of described bluetooth testing circuit 21 becomes " H " level when utilizing the situation that bluetooth 11 communicates detecting.
On the other hand, the output S2 of described counting circuit 10 offers the input terminal on one side of "AND" circuit 22, and the output S3 of described bluetooth testing circuit 21 is provided for the input terminal of the another side of "AND" circuit 22.On the lead-out terminal of described "AND" circuit 22, connect described halt circuit 7a then.Thereby when the output S2 of the output S3 of bluetooth testing circuit 21 and counting circuit 10 was " H " level, described "AND" circuit 22 was output as " H " level.That is to say that in the present embodiment when utilizing bluetooth 11 to communicate, 7 pairs of inverter circuits 3 of inverter control circuit are controlled, carry out drive actions of carrying out magnetron 6 in regular turn and the stop mode at intermittence that makes its action that stops.
Adopt the present embodiment that constitutes like this,, when the microwave that magnetron 6 takes place can not hinder communication, magnetron 6 is stopped in the communication that does not utilize bluetooth 11.
Also have, above structure beyond described identical with the 1st embodiment, so also can access effect and the effect identical with the 1st embodiment at present embodiment.
Fig. 5 and Fig. 6 represent the 3rd embodiment of the present utility model, below the place that is different from the 1st embodiment are described.The part identical with the 1st embodiment then is marked with identical symbol.This 3rd embodiment is characterized in that, dwell time is arranged at the paddy portion of the pulsating current output voltage of rectification circuit 2.That is as shown in Figure 5, on the positive output terminal of rectification circuit 2, connecting the counter-rotating input terminal of converter 32 by resistance 31, the output S4 of this converter 32 is provided for halt circuit 7a.Again, be connected resistance 33,34 and capacitor 35 between the positive output terminal of described rectification circuit 2 and described resistance 31, the voltage Vc of described capacitor 35 offers the non-counter-rotating input terminal of described converter 32.
Shown in Fig. 6 (b), in a single day the input voltage Vb of the counter-rotating input terminal of described converter 32 surpasses the input voltage Vc of non-counter-rotating input terminal, and the output S4 of converter 32 just becomes " L " level, in case, just become " H " level less than input voltage Vc.And inverter control circuit 7 ends the switch element of inverter circuit 3 when output S4 is " H " level.Consequently, in the moment shown in Fig. 6 (d), operating current flows into magnetron 6, forms dwell time in the paddy portion of the pulsating current output voltage of rectification circuit 2.Each dwell time is set at about 2.5 milliseconds in this case.
In such structure, magnetron 6 intermittences stop when heating cooking, therefore can keep the communication that utilizes bluetooth with it with this dwell time section as time gap.
Also have, the utility model is not limited to embodiment recited above, and distortion for example described below, expansion can also be arranged.
In the 1st and the 3rd embodiment, the structure that employing often makes the magnetron intermittence stop when heating cooking, but also can adopt and expression is set on guidance panel carries out the indicatory device of intermittent stop mode, for example bluetooth to inductive switch, the structure that the magnetron intermittence is stopped.
Adopt such structure, can be set at and only when the microwave oven periphery utilizes the communication of bluetooth, carry out intermittent stop mode, therefore magnetron is stopped.
In the 2nd and the 3rd embodiment, also can form the structure of only when adding thermal output, carrying out intermittent stop mode greater than 500W.
As mentioned above, adopt microwave oven of the present utility model, because the intermittent stop mode that when being arranged on heating cooking described microwave generating apparatus intermittence is stopped, even when heating cooking, also form the time period that microwave does not take place, with the time gap of this time period, can keep communication as the radio communication of the ISM frequency band that uses 2.4GHz such as bluetooth.
Claims (8)
1. microwave oven possesses:
Rectification circuit (2) is connected with the AC power (1) of civil power and the AC power (1) of civil power is carried out full-wave rectification;
Inverter circuit (3) is connected between the lead-out terminal of described rectification circuit (2), is made of resonant circuit and switch element;
Inverter control circuit (7), lead-out terminal is connected with described inverter circuit (3), in order to the conducting of the switch element of controlling described inverter circuit (3) with end;
Microwave generating apparatus (6) is driven to produce microwave by described inverter circuit (3);
Controlling circuit of microwave oven (8), its lead-out terminal is connected with an input terminal of described inverter control circuit (7), in order to controlling the driving of described microwave generating apparatus (6),
It is characterized in that also possessing:
Be connected between the AC power (1) and described inverter control circuit (7) of civil power, in order to the zero crossing detection circuit (9) of the zero crossing of the AC power (1) that detects civil power,
And described inverter control circuit (7) possesses when heating is cooked makes described microwave generating apparatus (6) stop the halt circuit (7a) that drives off and on according to the detection signal from described zero crossing detection circuit (9).
2. microwave oven according to claim 1 is characterized in that also possessing:
Detect the communication check circuit (21) of the radio communication of the ISM frequency band that uses 2.4GHz,
The lead-out terminal of described communication check circuit (21) is connected in another input terminal of inverter control circuit (7),
Described halt circuit (7a) is according to making microwave generating apparatus (6) stop off and on driving from the detection signal of described zero crossing detection circuit (9) with from the detection signal of the radio communication of described communication check circuit (21).
3. microwave oven according to claim 1 and 2 is characterized in that also possessing:
Be connected the counting circuit (10) of integral multiple in the cycle of the AC power (1) that is set at civil power between described zero crossing detection circuit (9) and the inverter control circuit (7), in order to driving time with microwave generating apparatus (6).
4. microwave oven according to claim 3 is characterized in that,
Described inverter control circuit (7) is arranged in and makes the input that utilizes under the situation that microwave generating apparatus (6) stops to come from described zero crossing detection circuit (9), the length in 1 cycle of the AC power (1) that to make its time that stops be civil power and with the cycle synchronisation of the AC power (1) of civil power.
5. microwave oven according to claim 1 is characterized in that,
Possess setting about whether carrying out the indicating circuit of the indication that intermittently stops,
The lead-out terminal of described indicating circuit is connected on the input terminal of inverter control circuit,
Described inverter control circuit (7) only is set to carry out intermittently under the situation of carrying out intermittent oscillation in the input from described indicating circuit and stops.
6. microwave oven possesses:
Rectification circuit (2) is connected with the AC power (1) of civil power and the AC power (1) of civil power is carried out full-wave rectification;
Inverter circuit (3) is connected between the lead-out terminal of described rectification circuit (2), is made of resonant circuit and switch element;
Inverter control circuit (7), its lead-out terminal is connected with described inverter circuit (3), in order to the conducting of the switch element of control inverter circuit (3) with end;
Microwave generating apparatus (6) is driven to produce microwave by described inverter circuit (3);
Controlling circuit of microwave oven (8), lead-out terminal is connected with an input terminal of described inverter control circuit (7), in order to controlling the driving of described microwave generating apparatus (6),
It is characterized in that also possessing:
Input terminal be connected with described rectification circuit (2) and lead-out terminal is connected with another input terminal of described inverter control circuit (7), be used for detecting the converter (32) whether voltage after described rectification circuit (2) rectification is lower than assigned voltage,
And described inverter control circuit (7) possesses when heating is cooked makes described microwave generating apparatus (6) stop the halt circuit (7a) that drives off and on according to the voltage detecting result from described converter (32).
7. microwave oven according to claim 6 is characterized in that,
Possess setting about whether carrying out the indicating circuit of the indication that intermittently stops,
The lead-out terminal of described indicating circuit is connected on the input terminal of inverter control circuit,
Described inverter control circuit (7) only is set to carry out intermittently under the situation of carrying out intermittent oscillation in the input from described indicating circuit and stops.
8. according to claim 6 or 7 described microwave ovens, it is characterized in that,
The time that described halt circuit (7a) stops to drive is arranged to 2.5 milliseconds.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP090231/2001 | 2001-03-27 | ||
| JP2001090231A JP3977604B2 (en) | 2001-03-27 | 2001-03-27 | microwave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613702Y true CN2613702Y (en) | 2004-04-28 |
Family
ID=18945044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU012805254U Expired - Lifetime CN2613702Y (en) | 2001-03-27 | 2001-12-28 | Microwave oven |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3977604B2 (en) |
| KR (1) | KR100443816B1 (en) |
| CN (1) | CN2613702Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051239A (en) * | 2011-10-13 | 2013-04-17 | 富士电机株式会社 | Cascade multiple inverter device |
| CN105188176A (en) * | 2015-10-20 | 2015-12-23 | 广东美的厨房电器制造有限公司 | Communication method and communication device for microwave oven |
| CN108513388A (en) * | 2018-03-29 | 2018-09-07 | 广东美的厨房电器制造有限公司 | Micro-wave oven and its communication control method, device and readable storage medium storing program for executing |
| CN108828962A (en) * | 2018-04-10 | 2018-11-16 | 广东美的厨房电器制造有限公司 | Micro-wave oven and its communication control method, device and readable storage medium storing program for executing |
| CN114825905A (en) * | 2022-06-28 | 2022-07-29 | 青岛鼎信通讯股份有限公司 | Voltage phase intermittence method of power electronic transformer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4981607B2 (en) * | 2007-10-03 | 2012-07-25 | 三菱電機株式会社 | Induction heating cooker |
| WO2017068716A1 (en) | 2015-10-23 | 2017-04-27 | 三菱電機株式会社 | Inductive heating cooker |
| CN105578637B (en) * | 2015-12-29 | 2018-06-19 | 广东美的厨房电器制造有限公司 | Control method, control device and the micro-wave oven of microwave oven circuit |
| CN111615230B (en) * | 2020-05-13 | 2022-06-10 | 广东美的厨房电器制造有限公司 | Control method and device for microwave household appliance, microwave household appliance and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3106009B2 (en) * | 1992-07-17 | 2000-11-06 | 株式会社東芝 | microwave |
| JP3246112B2 (en) * | 1993-09-07 | 2002-01-15 | 松下電器産業株式会社 | Microwave cooker |
| JP3351972B2 (en) * | 1996-11-28 | 2002-12-03 | シャープ株式会社 | Induction heating cooking system |
| JP2000036380A (en) * | 1998-07-17 | 2000-02-02 | Mitsubishi Electric Corp | Cooking apparatus |
-
2001
- 2001-03-27 JP JP2001090231A patent/JP3977604B2/en not_active Expired - Fee Related
- 2001-09-28 KR KR10-2001-0060455A patent/KR100443816B1/en active IP Right Grant
- 2001-12-28 CN CNU012805254U patent/CN2613702Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051239A (en) * | 2011-10-13 | 2013-04-17 | 富士电机株式会社 | Cascade multiple inverter device |
| CN103051239B (en) * | 2011-10-13 | 2015-04-29 | 富士电机株式会社 | Cascade multiple inverter device |
| CN105188176A (en) * | 2015-10-20 | 2015-12-23 | 广东美的厨房电器制造有限公司 | Communication method and communication device for microwave oven |
| CN108513388A (en) * | 2018-03-29 | 2018-09-07 | 广东美的厨房电器制造有限公司 | Micro-wave oven and its communication control method, device and readable storage medium storing program for executing |
| CN108828962A (en) * | 2018-04-10 | 2018-11-16 | 广东美的厨房电器制造有限公司 | Micro-wave oven and its communication control method, device and readable storage medium storing program for executing |
| CN114825905A (en) * | 2022-06-28 | 2022-07-29 | 青岛鼎信通讯股份有限公司 | Voltage phase intermittence method of power electronic transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100443816B1 (en) | 2004-08-09 |
| JP2002289337A (en) | 2002-10-04 |
| KR20020075700A (en) | 2002-10-05 |
| JP3977604B2 (en) | 2007-09-19 |
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