CN108151769A - Door of microwave oven detection device and method - Google Patents
Door of microwave oven detection device and method Download PDFInfo
- Publication number
- CN108151769A CN108151769A CN201711240396.7A CN201711240396A CN108151769A CN 108151769 A CN108151769 A CN 108151769A CN 201711240396 A CN201711240396 A CN 201711240396A CN 108151769 A CN108151769 A CN 108151769A
- Authority
- CN
- China
- Prior art keywords
- zero cross
- detection circuit
- circuit
- cross detection
- microswitch
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
- F24C15/028—Stoves doors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Ovens (AREA)
Abstract
An embodiment of the present invention provides a kind of door of microwave oven detection device and methods, belong to door of microwave oven detection technique field.The door of microwave oven detection device includes：Microswitch is connected to alternating current, is disconnected and is closed according to the state of the door of microwave oven；Zero cross detection circuit, is connected to the microswitch, and the zero cross detection circuit exports zero cross signal and stove door switch signal according to the state of the microswitch；And control circuit, the zero cross detection circuit is connected to, for the work exported to control the micro-wave oven according to the zero cross detection circuit.The present invention realizes by the way that zero cross detection circuit is combined with control circuit and carries out fire door detection and two functions of zero passage detection by a microswitch, so as to save a microswitch, optimize installation process.
Description
Technical field
The present invention relates to door of microwave oven detection technique, more particularly to a kind of door of microwave oven detection device and method.
Background technology
Micro-wave oven is come cooking food with microwave, and microwave is a kind of electromagnetic wave, and wavelength is about 1mm to 1m, and people station exists
Distance when door of microwave oven is pulled open in face of micro-wave oven is less than 1m, so when pulling open fire door, if micro-wave oven still exists
Work, then microwave will be radiated on human body, so as to bring harm to user.Therefore, to microwave oven door state into
Row detection is loaded with timely close, and is the requirement of a safety on micro-wave oven product.
The computer board of micro-wave oven is to control the power supply of microwave generator by controlling the break-make of relay, works as electricity
When brain plate detects that door of microwave oven is opened, the power supply of control relay cut-out microwave generator.
Fire door detection circuit is weak electricity measuring circuit, as shown in Figure 1, KEY is microswitch, when door of microwave oven is opened
When, KEY is closed, and DOOR Port detectings to low level, computer board are reacted at this time, the relay of closing control microwave generator
Device.When door of microwave oven is shut, KEY is disconnected, DOOR Port detectings to high level, and it is micro- that computer board can control relay to start
Wave producer.
The relational graph of existing fire door detection circuit is as shown in Fig. 2, there is gate stop 202 on fire door 201, when fire door 201 is closed,
Gate stop 202 encounters the contact of microswitch, is closed microswitch.Wherein microswitch 2041 and microswitch 2042 are control
The switch of microwave generator power supply, microswitch 3 are fire door detection switch, need two connecting lines, are connected to computer board 203
Light current terminal.
Fig. 3 is the relation structure diagram for the fire door detection circuit that the prior art provides, as shown in figure 3, fire door is associated with gate stop,
Gate stop is associated with three microswitches (i.e. microswitch 2401, microswitch 2402, microswitch 2403), wherein microswitch
2403 for detecting the opening and closing of fire door, and microswitch 2403 is connected to computer board fire door socket by connecting line, and leads to
The computer board control actuating of relay is crossed, microswitch 2401 and microswitch 2402 control microwave generator power supply, wherein fine motion
The work of 2401 control computer board of switch, microswitch 2402 play the role of pilot switch, and the work to relay is a kind of
Mechanical control.
Since existing fire door detection circuit is weak electricity measuring, fire door connecting line is long and needs to use individual fine motion
The device to do oven door opening and close is switched, it is of high cost, line length is connected, it is difficult to install.
Invention content
The object of the present invention is to provide a kind of door of microwave oven detection device and method, for solving difficult to install ask
Topic.
To achieve these goals, the present invention provides a kind of door of microwave oven detection device, which includes：Fine motion is opened
It closes, is connected to alternating current, disconnected and be closed according to the state of the door of microwave oven；Zero cross detection circuit is connected to the fine motion
Switch, the zero cross detection circuit export zero cross signal and stove door switch signal according to the state of the microswitch；And
Control circuit is connected to the zero cross detection circuit, and the microwave is controlled for the output according to the zero cross detection circuit
The work of stove.
Optionally, which further includes：The control circuit is connect with the relay of the micro-wave oven, the control circuit
The break-make of the relay is controlled to control the work of the micro-wave oven for output according to the zero cross detection circuit.
Optionally, the control circuit includes：Safety return circuit is connected to the zero cross detection circuit, receives the zero passage
The output of detection circuit；And relay drive circuit, it is connected between the safety return circuit and the relay, for controlling
The break-make of the relay of the micro-wave oven；Wherein, the safety return circuit according to the output of the zero cross detection circuit to control
State relay drive circuit.
Optionally, the zero cross detection circuit is additionally operable to：In the case where the microswitch disconnects, the zero passage detection
Circuit does not export zero cross signal；And in the case where the microswitch is closed, the zero cross detection circuit output zero passage letter
Number.
Optionally, which further includes：Electric-controlled plate master chip is connected to the zero cross detection circuit and is driven with the relay
Between dynamic circuit, for the output exported to control the relay drive circuit according to the zero cross detection circuit.
Correspondingly, the present invention also provides a kind of door of microwave oven detection method, this method includes：Microswitch is according to institute
The state for stating door of microwave oven is disconnected and is closed；Zero cross detection circuit exports zero cross signal according to the state of the microswitch
And stove door switch signal；And control circuit controls the work of the micro-wave oven according to the output of the zero cross detection circuit.
Optionally, this method further includes：Described in the control circuit is controlled according to the output of the zero cross detection circuit
The break-make of the relay of micro-wave oven is to control the work of the micro-wave oven.
Optionally, control circuit controls the break-make of the relay of the micro-wave oven to include according to the zero cross signal：Safety
Circuit receives the output of the zero cross detection circuit；And the safety return circuit comes according to the output of the zero cross detection circuit
Control relay drive circuit.
Optionally, zero cross detection circuit exports zero cross signal and includes according to the state of the microswitch：Described micro-
In the case that dynamic switch disconnects, the zero cross detection circuit does not export zero cross signal；And the feelings being closed in the microswitch
Under condition, the zero cross detection circuit exports zero cross signal.
Optionally, this method further includes：Described in electric-controlled plate master chip is controlled according to the output of the zero cross detection circuit
The output of relay drive circuit.
Through the above technical solutions, the present invention is realized and is passed through by the way that zero cross detection circuit is combined with control circuit
One microswitch carries out fire door detection and two functions of zero passage detection, so as to save a microswitch, optimizes peace
Dress process.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 is the fire door detection circuit that the prior art provides；
Fig. 2 is the relational graph for the fire door detection circuit that the prior art provides；
Fig. 3 is the relation structure diagram for the fire door detection circuit that the prior art provides；
Fig. 4 is the structure diagram of door of microwave oven detection device provided by the invention；
Fig. 5 is zero cross detection circuit provided by the invention；
Fig. 6 is the circuit diagram of door of microwave oven detection device provided by the invention；And
Fig. 7 is the flow chart of door of microwave oven detection method provided by the invention.
Specific embodiment
The specific embodiment of the embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, be not intended to restrict the invention embodiment.
Fig. 4 is the structure diagram of door of microwave oven detection device provided by the invention, as shown in figure 4, the device is including micro-
Dynamic switch 401, zero cross detection circuit 402 and control circuit 403, microswitch 401 is connected to alternating current, according to door of microwave oven
State is disconnected and is closed；Zero cross detection circuit 402 is connected to microswitch, and zero cross detection circuit 402 is according to microswitch 401
State and export zero cross signal and stove door switch signal；Control circuit 403 is connected to zero cross detection circuit 402, for according to mistake
The work exported to control micro-wave oven of zero detection circuit.
Wherein, the state of microswitch 401 is to disconnect and be closed, the zero passage when the state of microswitch 401 is is closed
Detection circuit 402 exports zero cross signal, and when the state of microswitch 401 is disconnects, zero cross detection circuit 402 does not export zero passage
Signal.
Gate stop on door of microwave oven is associated with the microswitch on microwave body, micro- when door of microwave oven is closed
Dynamic switch is closed, and so as to which circuit where microswitch is connected, when door of microwave oven is opened, microswitch disconnects, so as to fine motion
Circuit disconnects where switch.
Zero cross detection circuit is circuit present in computer board, and Fig. 5 is zero cross detection circuit provided by the invention, such as Fig. 5
Shown, zero cross detection circuit is used to detect city's electrical zero to control the work of micro-wave oven.The present invention is examined by zero passage shown in fig. 5
Slowdown monitoring circuit realizes stove door switch detection and two functions of zero passage detection, i.e. a circuit realizes two kinds of functions.In Figure 5, IC101
For photoelectrical coupler, buffer action is played, L/N is mains-supplied end.Zero cross detection circuit shown in fig. 5 is electricity known in the art
Road will not be described in great detail its principle herein, it should be understood, however, that inventor increase on the basis of existing technology it is defeated
Outlet ZERO, the output terminal can export stove door switch signal, and concrete principle will be described below.
Wherein, control circuit 403 controls the work of micro-wave oven that can specifically pass through according to the output of zero cross detection circuit
Relay is controlled to realize, for example, control circuit 403 can be connect with the relay of micro-wave oven, control circuit 403 is used for basis
The output of zero cross detection circuit controls the break-make of relay to control the work of micro-wave oven.
Wherein, in the case where zero cross detection circuit exports zero cross signal, relay is connected so that micro-wave oven to be controlled to work, instead
It, in the case where zero passage detection does not export zero cross signal, relay connects that micro-wave oven is controlled not work.
Fig. 6 is the circuit diagram of door of microwave oven detection device provided by the invention, as shown in fig. 6, zero passage shown in Fig. 5
Microswitch 401 is added before detection circuit input terminal, i.e. the L of zero cross detection circuit is terminated into microswitch, shown in Fig. 5
Zero cross detection circuit output terminal accessed control circuit 403, control circuit 403 includes the safety return circuit 4031 shown in Fig. 6
With relay drive circuit 4032.Safety return circuit 4031 is connected to zero cross detection circuit 402, receives zero cross detection circuit 402
Output；Relay drive circuit 4032 is connected between safety return circuit 4031 and relay, for controlling the relay of micro-wave oven
404 break-make；Wherein, safety return circuit 4031 controls relay drive circuit 4032 according to the output of zero cross detection circuit 402.
With reference to Fig. 6 as can be seen that when microswitch 401 is closed, the output terminal ZERO of zero-crossing detector circuit 402 can be examined
Zero cross signal is measured, this illustrates that fire door is turned off, and can work with the relay of drive control microwave generator, while safety return circuit
Capacitance C101 in 4031 plays the role of blocking circulation exchange, and the zero cross signal from zero cross detection circuit 402 is returned by safety
After capacitance C101 and polar capacitor E1 charge and discharge in road 4031, the base stage of the triode Q100 in safety return circuit 4031 is supplied
Electricity, makes Q100 enter saturation state, and Q100 conductings work normally so as to the triode Q101 of relay drive circuit 4032.
That is when having zero cross signal, relay drive circuit 4032 could work normally.When microswitch 401 disconnects, i.e. fire door
During opening, the output terminal ZERO of zero cross detection circuit 402 does not have output signal, Q100 because C101 reasons are in cut-off state, from
And relay drive circuit 4032 is automatically stopped work.I.e., it has no during zero cross signal, relay drive circuit 4032 is not
It can normal work.There has been described by circuit components realize the zero cross signal exported according to zero cross detection circuit 4032 come
Control relay drive circuit 4032, that is, mechanical control.
As seen through the above analysis, zero cross detection circuit 402 is additionally operable to：In the case where microswitch 401 disconnects,
Zero cross detection circuit 402 does not export zero cross signal；In the case where microswitch 401 is closed, zero cross detection circuit 402 exported
Zero-signal.
As seen in Figure 6, in the output terminal of zero cross detection circuit 402, there are ZERO ends, are closed in microswitch 401
In the case of (namely door of microwave oven closing), ZERO ends will export zero cross signal.In addition, micro-wave oven provided by the invention
Fire door detection device can also include electric-controlled plate master chip (not shown), which is connected to zero passage detection electricity
Between road 402 and relay drive circuit 4032, control the relay driving electric for the output according to zero cross detection circuit 402
The output on road 4032.
It is corresponding with mechanical control described above, relay drive circuit is controlled by electric-controlled plate master chip here
4032 scheme can be referred to as Digital Signals.
It should be understood that electric-controlled plate master chip controls relay drive circuit 4032 together with safety return circuit,
That is simultaneously meet in safety return circuit 4031 Q100 normal work and electric-controlled plate master chip it is defeated according to zero cross detection circuit
Go out zero cross signal and export control two conditions of signal, relay drive circuit 4032 could work normally, on the other hand, in mistake
Zero detection circuit 402 is without output zero cross signal, and Q100 cut-offs, relay drive circuit 4032 is automatically stopped work, electric at this time
Control plate master chip does not detect that zero cross signal can also close the output signal of relay drive circuit 4032.It is as can be seen that real
The double insurance of mechanical control and Digital Signals is showed.
It will be appreciated by those skilled in the art that microwave oven system also needs to individual stove door switch signal to carry out some controls
System, this can be realized by zero cross detection circuit 402, such as output port ZERO in figure 6, when fire door is closed, mistake
Zero detection circuit 402 can detect zero cross signal, so as to the signal that ZERO output door of microwave oven is closed, in oven door opening
When, zero cross detection circuit 402 cannot detect zero cross signal, the signal opened so as to ZERO output door of microwave oven.
Fig. 7 is the flow chart of door of microwave oven detection method provided by the invention, as shown in fig. 7, this method includes：
Step 701, microswitch is disconnected and is closed according to the state of door of microwave oven.
Step 702, zero cross detection circuit exports zero cross signal and stove door switch signal according to the state of microswitch.
Step 703, control circuit controls the work of micro-wave oven according to the output of zero cross detection circuit.
It should be noted that the detail and benefit of door of microwave oven detection method provided by the invention are carried with the present invention
The door of microwave oven detection device of confession is similar, and in this, it will not go into details.
The optional embodiment of the embodiment of the present invention is described in detail above in association with attached drawing, still, the embodiment of the present invention is simultaneously
The detail being not limited in the above embodiment, can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection domain of the embodiment of the present invention.
By technical solution provided by the invention, it can not only save a microswitch, but also connecting line also becomes letter
Single (only needing a connecting line), installation are also convenient for very much, and fire door line is no longer the top (computer board for moving computer board to from bottom
In general lower part is power supply, i.e. forceful electric power, and top is divided into control circuit, i.e. weakness), optimize installation process, Er Qieneng
Achieve the purpose that Mechanical course and Digital Signals double insurance.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, should equally be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of door of microwave oven detection device, which is characterized in that the device includes：
Microswitch is connected to alternating current, is disconnected and is closed according to the state of the door of microwave oven；
Zero cross detection circuit, is connected to the microswitch, the zero cross detection circuit according to the state of the microswitch and
Export zero cross signal and stove door switch signal；And
Control circuit is connected to the zero cross detection circuit, for the output according to the zero cross detection circuit come described in controlling
The work of micro-wave oven.
2. the apparatus according to claim 1, which is characterized in that the control circuit and the relay of the micro-wave oven connect
It connects, the control circuit is used to control the break-make of the relay according to the output of the zero cross detection circuit with described in controlling
The work of micro-wave oven.
3. the apparatus of claim 2, which is characterized in that the control circuit includes：
Safety return circuit is connected to the zero cross detection circuit, receives the output of the zero cross detection circuit；And
Relay drive circuit is connected between the safety return circuit and the relay, for control the micro-wave oven after
The break-make of electric appliance；
Wherein, the safety return circuit controls the relay drive circuit according to the output of the zero cross detection circuit.
4. device according to claim 3, which is characterized in that the zero cross detection circuit is additionally operable to：
In the case where the microswitch disconnects, the zero cross detection circuit does not export zero cross signal；And
In the case where the microswitch is closed, the zero cross detection circuit exports zero cross signal.
5. device according to claim 3, which is characterized in that the device further includes：
Electric-controlled plate master chip is connected between the zero cross detection circuit and the relay drive circuit, for according to
The output exported to control the relay drive circuit of zero cross detection circuit.
6. a kind of door of microwave oven detection method, which is characterized in that this method includes：
Microswitch is disconnected and is closed according to the state of the door of microwave oven；
Zero cross detection circuit exports zero cross signal and stove door switch signal according to the state of the microswitch；And
Control circuit controls the work of the micro-wave oven according to the output of the zero cross detection circuit.
7. according to the method described in claim 6, it is characterized in that, this method further includes：
The control circuit controls the break-make of the relay of the micro-wave oven to control according to the output of the zero cross detection circuit
Make the work of the micro-wave oven.
8. the method according to the description of claim 7 is characterized in that control circuit controls the microwave according to the zero cross signal
The break-make of the relay of stove includes：
Safety return circuit receives the output of the zero cross detection circuit；And
The safety return circuit controls relay drive circuit according to the output of the zero cross detection circuit.
9. according to the method described in claim 8, it is characterized in that, zero cross detection circuit according to the state of the microswitch and
Output zero cross signal includes：
In the case where the microswitch disconnects, the zero cross detection circuit does not export zero cross signal；And
In the case where the microswitch is closed, the zero cross detection circuit exports zero cross signal.
10. according to the method described in claim 8, it is characterized in that, this method further includes：
Electric-controlled plate master chip controls the output of the relay drive circuit according to the output of the zero cross detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240396.7A CN108151769A (en) | 2017-11-30 | 2017-11-30 | Door of microwave oven detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240396.7A CN108151769A (en) | 2017-11-30 | 2017-11-30 | Door of microwave oven detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108151769A true CN108151769A (en) | 2018-06-12 |
Family
ID=62469186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240396.7A Pending CN108151769A (en) | 2017-11-30 | 2017-11-30 | Door of microwave oven detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108151769A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041316A (en) * | 2018-06-20 | 2018-12-18 | 广东美的厨房电器制造有限公司 | Control method, system and the micro-wave oven of microwave output |
| CN113365379A (en) * | 2021-06-29 | 2021-09-07 | 广东美的厨房电器制造有限公司 | Integrated chip and cooking equipment |
| CN113854841A (en) * | 2021-10-29 | 2021-12-31 | 广东美的厨房电器制造有限公司 | Drive chip and cooking utensil |
| WO2023066000A1 (en) * | 2021-10-22 | 2023-04-27 | 青岛海尔电冰箱有限公司 | Electromagnetic wave processing apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201536438U (en) * | 2009-10-23 | 2010-07-28 | 美的集团有限公司 | Automatic control device of microwave oven |
| CN202973221U (en) * | 2012-09-25 | 2013-06-05 | 美的集团股份有限公司 | Microwave oven and standby control circuit thereof |
| CN203658449U (en) * | 2013-11-27 | 2014-06-18 | 美的集团股份有限公司 | Zero-cross detection circuit and electric pressure cooker with application of same |
| CN204392616U (en) * | 2015-03-12 | 2015-06-10 | 厦门大学 | The electric control circuit of frequency conversion type microwave oven |
| CN204440095U (en) * | 2015-03-24 | 2015-07-01 | 浙江绍兴苏泊尔生活电器有限公司 | Opening and closing detection device of food processor cover and food processor |
| CN206131093U (en) * | 2016-09-30 | 2017-04-26 | 宁波方太厨具有限公司 | Microwave oven gate device |
-
2017
- 2017-11-30 CN CN201711240396.7A patent/CN108151769A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201536438U (en) * | 2009-10-23 | 2010-07-28 | 美的集团有限公司 | Automatic control device of microwave oven |
| CN202973221U (en) * | 2012-09-25 | 2013-06-05 | 美的集团股份有限公司 | Microwave oven and standby control circuit thereof |
| CN203658449U (en) * | 2013-11-27 | 2014-06-18 | 美的集团股份有限公司 | Zero-cross detection circuit and electric pressure cooker with application of same |
| CN204392616U (en) * | 2015-03-12 | 2015-06-10 | 厦门大学 | The electric control circuit of frequency conversion type microwave oven |
| CN204440095U (en) * | 2015-03-24 | 2015-07-01 | 浙江绍兴苏泊尔生活电器有限公司 | Opening and closing detection device of food processor cover and food processor |
| CN206131093U (en) * | 2016-09-30 | 2017-04-26 | 宁波方太厨具有限公司 | Microwave oven gate device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041316A (en) * | 2018-06-20 | 2018-12-18 | 广东美的厨房电器制造有限公司 | Control method, system and the micro-wave oven of microwave output |
| WO2019242185A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的厨房电器制造有限公司 | Method and system for controlling microwave output, and microwave oven |
| CN113365379A (en) * | 2021-06-29 | 2021-09-07 | 广东美的厨房电器制造有限公司 | Integrated chip and cooking equipment |
| WO2023066000A1 (en) * | 2021-10-22 | 2023-04-27 | 青岛海尔电冰箱有限公司 | Electromagnetic wave processing apparatus |
| CN113854841A (en) * | 2021-10-29 | 2021-12-31 | 广东美的厨房电器制造有限公司 | Drive chip and cooking utensil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108151769A (en) | Door of microwave oven detection device and method | |
| CN105305565B (en) | A kind of charge protection and identification circuit and charging equipment | |
| CN206131093U (en) | Microwave oven gate device | |
| CN207352489U (en) | A kind of Temperature-controlled appliance | |
| CN109041316A (en) | Control method, system and the micro-wave oven of microwave output | |
| CN207889556U (en) | A kind of charging equipment and its earth leakage protective control circuit | |
| CN106774034A (en) | A kind of switch cubicle monitoring device | |
| CN203734169U (en) | IC coded lock power distribution cabinet | |
| CN105226552A (en) | The aobvious device of Intelligent switch cabinet behaviour and control method thereof | |
| CN106521869A (en) | Method for detecting opening and closure of cover of clothing processing device, and clothing processing device | |
| CN207232808U (en) | Heating control apparatus and cooking apparatus | |
| CN204101703U (en) | A kind of automatic detection system for detecting electric tool | |
| KR101635048B1 (en) | Circuit for driving of cooker, system for driving of cooker, cooker and method for driving of cooker | |
| CN208227369U (en) | Control the system and micro-wave oven of microwave output | |
| CN206848324U (en) | A kind of station apparatus of electronic component anti-aging test | |
| CN107578496A (en) | A kind of switch cabinet control method based on infrared wake-up | |
| CN206557547U (en) | Relay actuation time test circuit | |
| CN105178725A (en) | Control method of electromagnetic lock, electromagnetic lock and express delivery cabinet | |
| CN205301492U (en) | Fuse test system for car | |
| CN105540376B (en) | A kind of hoistway door circuit short circuit detection device | |
| CN107528373A (en) | A kind of relay switch control device and its method | |
| CN105606256B (en) | Wireless temperature measurement method and cooker | |
| CN204631178U (en) | The test unit that a kind of equipment on-line detects | |
| CN106656131A (en) | Financial self-service device and power supply switch control circuit thereof | |
| CN207408793U (en) | A kind of circuit for judging electron temperature-control grill baking tray opening and closing state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |