CN104832959B - Micro-wave oven and its control method - Google Patents
Micro-wave oven and its control method Download PDFInfo
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- CN104832959B CN104832959B CN201510240531.2A CN201510240531A CN104832959B CN 104832959 B CN104832959 B CN 104832959B CN 201510240531 A CN201510240531 A CN 201510240531A CN 104832959 B CN104832959 B CN 104832959B
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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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- 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
- H05B6/80—Apparatus for specific applications
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- Electromagnetism (AREA)
- Electric Ovens (AREA)
Abstract
The invention discloses a kind of micro-wave oven and its control method, micro-wave oven includes body, heater, light sensor, controller and drive circuit.Present invention also offers a kind of method for controlling microwave oven.Acute variation occurs in very short time for microwave cavity indoor illumination intensity, and spark phenomenon occurs, and controller sends shutdown signal control drive circuit driving heating device and stops heating.By the invention it is possible to detect micro-wave oven spark phenomenon in heating process, and pre-processed, it is convenient and swift, it is safe and efficient.
Description
Technical field
The present invention relates to machine for kitchen use, particularly a kind of micro-wave oven and its control method.
Background technology
If thering is metal to cause spark phenomenon in micro-wave oven, cause body of heater to damage, or even trigger fire.Therefore, it is existing micro-
Whether ripple stove has metal to prevent micro-wave oven from striking sparks by detecting in micro-wave oven.However, detection of the prior art for metal is deposited
In limitation and unreliable.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention needs offer one
Kind micro-wave oven and a kind of method for controlling microwave oven.
To reach above-mentioned purpose, the embodiment of first aspect present invention proposes a kind of micro-wave oven, including：
Body, the body is formed with microwave chamber；
Heater, for acting in the microwave of the heated material in the microwave cavity room；
Light sensor, for sensing light intensity signal corresponding to the microwave cavity indoor illumination intensity and generation；
The controller being connected with the heater and the light sensor, for being according to light intensity signal judgement
No generation spark phenomenon simultaneously produces shutdown signal when spark phenomenon occurs；And
Drive circuit, it is connected with the controller and the heater, described in being stopped according to the shutdown signal
Heater.
In some embodiments, the light sensor is arranged in the body and is located at the micro-wave oven chamber
Outside.
In some embodiments, the light sensor is towards the micro-wave oven chamber center and the microwave chamber bottom
Between face.
In some embodiments, the controller is used to produce predetermined light in the given time in the heated material
During strong change, the shutdown signal is produced.
In some embodiments, the scheduled time is 0.1 second.
In some embodiments, the controller includes：
Computing module, for calculating the intensity of illumination intensity difference of the two neighboring scheduled time；And
Judge module, for judging to occur sparking now when the intensity of illumination difference of the scheduled time exceedes reservation threshold
As.
In some embodiments, the computing module is additionally operable to calculate current environment brightness, and as described in first
Intensity of illumination in the scheduled time.
In some embodiments, the micro-wave oven includes the warning device being connected with the drive circuit, the alarm
Device is used to send alarm according to the shutdown signal.
To reach above-mentioned purpose, the embodiment of second aspect of the present invention proposes a kind of control method of micro-wave oven, and it is special
Sign is to comprise the following steps：
S1, act in the microwave of the heated material in the microwave cavity room of the micro-wave oven；
S2, sense light intensity signal corresponding to the microwave cavity indoor illumination intensity and generation；
S3, judged whether that spark phenomenon occurs according to the light intensity signal, if so, then producing shutdown signal and entering step
S4, if it is not, return to step S2；And
S4, stopped producing the microwave according to the shutdown signal.
In some embodiments, the step S3 includes following sub-step：
S31, the intensity of illumination in each scheduled time is calculated, and calculate the illumination of the two neighboring scheduled time
Intensity difference；And
S32, judge spark phenomenon occurs when the intensity of illumination of the scheduled time exceedes reservation threshold.
To a little be set forth in part in the description for the additional aspect of the present invention, will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention is from combining in description of the accompanying drawings below to embodiment by change
Obtain substantially and be readily appreciated that, wherein：
Fig. 1 is the schematic diagram of the micro-wave oven of embodiments of the present invention.
Fig. 2 is the circuit diagram of the micro-wave oven of embodiments of the present invention.
Fig. 3 is the schematic flow sheet of the method for controlling microwave oven of embodiments of the present invention.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are directly over second feature and oblique upper, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Fig. 1 is the schematic diagram according to the micro-wave oven 10 of one embodiment of the present invention.
The micro-wave oven 10 of embodiments of the present invention includes body 100, heater 200, light sensor 300, control
Device 400 and drive circuit 500.Body 100 is formed with microwave chamber 110.Heater 200 is used to act in microwave chamber
The microwave of heated material in 110.Light sensor 300 is used to sense intensity of illumination in microwave chamber 110 and produced correspondingly
Light intensity signal.Controller 400 is connected with heater 200 and light sensor 300, and controller 400 is used to be believed according to light intensity
Number judge whether that spark phenomenon occurs, and shutdown signal is produced when spark phenomenon occurs.Drive circuit 500 and controller 400
And heater 200 connects, for according to shutdown signal heating-stopping apparatus 200.
The micro-wave oven 10 of embodiments of the present invention can detect spark phenomenon in heated material heating process, once
Generation spark phenomenon, stop heating and protected, be effectively protected micro-wave oven 10 and the safety of user.
Body 100 is substantially rectangular, includes user oriented preceding surface 120 during 10 normal use of micro-wave oven.Preceding surface
120 are usually provided with control panel 121, and control panel 121 is used to receive user's input.Micro-wave oven is in use, control panel 121
Same forward direction faces user, generally rectangular, is formed at the preceding right side of surface 120, includes keyboard region.
Light sensor 300 be arranged in body 100 and outside microwave chamber 110, such as positioned at control panel 121 with
In the closed area that body 100 is formed.
In this way, one carrys out light sensor 300 and is arranged in body 100 that light sensor 300 can be avoided by micro-wave oven 10
The influence of outer light source, and light sensor 300 can be avoided by micro- in microwave chamber 110 by being arranged at outside microwave chamber 110
The influence of ripple.
Light sensor 300 is towards between the center of microwave chamber 110 and the bottom of microwave chamber 110, such as towards microwave cavity
The center of room 110 place on the lower side.
Usual material to be heated, which is known from experience, to be positioned on the pallet of the bottom of microwave chamber 110, and sparking light-emitting zone is generally within micro-
Between the center of ripple chamber 110 and the bottom surface of microwave chamber 110 (i.e. the center of microwave chamber 110 place on the lower side).Light sensor 300 for
Illumination variation is most sensitive in the region.In this way, it is strong to improve the illumination that light sensor can be sensed accurately in microwave chamber 110
Degree, avoid because the set location of light sensor 300 is improper cause to produce light intensity signal time interval it is long or do not produce light intensity
Signal.
Controller 400 is used to, when the heated material produces predetermined light intensity change in the given time, produce closing
Signal.For example, the scheduled time is 0.1 second, predetermined light intensity, which becomes, turns to light intensity change threshold values, is existed according to the concrete structure of micro-wave oven 10
Set when dispatching from the factory.For micro-wave oven 10 in normal heating process, the intensity of illumination in microwave chamber 110 is certain, and basic guarantor
Hold constant.Sparking belongs to a kind of point discharge phenomenon, dazzling radiance is produced during sparking, so as to cause the light in microwave chamber 110
Acute variation occurs according to intensity.Therefore, light intensity change threshold values numerical value should be larger, such as it is 640 lumens to set rated value
(Lux)。
In this way, the scheduled time is set as to ensure within 0.1 second that controller 400 is judged within effective time in microwave chamber 110
Whether spark phenomenon is occurred.Will not be long because of the scheduled time, and the spark phenomenon occurred is missed, suffer user unnecessary
Loss.The change of predetermined light intensity is set according to the concrete structure of micro-wave oven 10, it is ensured that the micro-wave oven of different model can be
Spark phenomenon is detected when needing, will not be set because predetermined light intensity changing value it is too high and miss spark phenomenon, also will not be because of
Predetermined light intensity changing value is too low and the generation of erroneous judgement spark phenomenon, causes micro-wave oven 10 is unnecessary to close down.The scheduled time and
The setting value of predetermined light intensity change is optimization numerical scheme, it is ensured that the degree of accuracy of detection.
In this way, in whole heating process, the intensity of illumination in the sustainable sense microwave chamber 110 of light sensor 300, production
Raw corresponding light intensity signal, and light intensity signal is fed back into controller 400.When light intensity change exceedes in advance within 0.1 second scheduled time
When determining light intensity change threshold values, controller 400 judges spark phenomenon occurs, and produces shutdown signal.
Controller 400 includes computing module 410 and judge module 420.Computing module 410 is used to calculate two neighboring make a reservation for
The intensity of illumination of time is poor.Wherein, the intensity of illumination in first scheduled time that computing module 410 calculates is bright for current environment
Degree.The intensity of illumination difference that judge module 420 calculates according to computing module 410 judges whether generation spark phenomenon, works as the scheduled time
Intensity of illumination difference judge generation spark phenomenon when exceeding reservation threshold.
Controller 400 first passes around computing module 410 after light intensity signal caused by light sensor 300 is received.Meter
Calculate module 410 and calculate current environment intensity of illumination, and as the intensity of illumination in first scheduled time.Computing module 410
For calculating in the two neighboring scheduled time, i.e., the intensity of illumination in 0.1 second is poor.Then, by intensity of illumination differential transmission to sentencing
Disconnected module 420.Judge module 420 is used to compare intensity of illumination difference and predetermined intensity of illumination change threshold values size, if illumination
Intensity difference is more than predetermined intensity of illumination change threshold values, then judges spark phenomenon occurs.
Micro-wave oven 10 includes the warning device 600 being connected with drive circuit 500, and warning device 600 is used to be believed according to closing
Number send alarm while heater 200 stops and heated, prompt user.Buzzer or light-emitting diodes can be used in alarm device
Pipe, user is notified in the form of by acousto-optic etc..In this way, can be in micro-wave oven from user is reminded while processing, check micro-wave oven is certainly
Whether processing succeeds, to ensure the safety of micro-wave oven and user.
Certainly, micro-wave oven composition mechanism and parts coordinate mounting means, such as control panel and the position relationship on preceding surface,
The installation site of light sensor, the direction of photosensitive area etc. is not limited to present embodiment.
Fig. 2 is the circuit diagram according to the micro-wave oven 10 of one embodiment of the present invention.
Light sensor 300 includes light sensor core 310, resistance R2, resistance R3 and resistance R4.Light sensor
300 are used to sense intensity of illumination in microwave chamber 110, and have AD (digital-to-analogue conversion) function.After intensity of illumination is converted to numerical value,
Exported by output end SCL, SDA being connected with controller 400 to controller 400.As an example, intensity of illumination transformational relation is
0.64Lux per units, that is, the luminous intensity sensed are 64Lux, and the output valve of light sensor 300 is 100.
Controller 400 includes electric capacity C1, electric capacity C2, crystal oscillator OSC1, resistance R1 and single-chip microcomputer IC1.Controller 400 is used to read
Take light intensity signal and judged whether that spark phenomenon occurs according to light intensity signal, and shutdown signal is produced when spark phenomenon occurs.
400 adoptable actual circuit of controller is single-chip minimum system, and as the basis of software computing, single-chip microcomputer has to be deposited substantially
Storage and calculation function.Such as in present embodiment, controller 400 is connected with light sensor 300, light sensor 300 passes through
SCL, SDA are by light intensity signal data transfer to single-chip microcomputer IC1.For example, when signal transmits, SCL is high level, and SDA is by high level
To low transition；When signal stops transmission, SCL is high level, and SDA is from low level to high level saltus step.In controller 400
Single-chip microcomputer IC1 is stored with the illumination variation threshold values K set, and the current environment illumination intensity value D sensed.With 10 times/0.1
The speed of second reads current environment illumination intensity value D, obtains Relative light intensity value Dn, calculate the adjacent difference Δ of relative sunshine intensity twice
Dn, and compared with setting illumination variation threshold values K, judge whether to strike sparks.If intensity of illumination difference Δ DnMore than setting illumination threshold values
K, judge to strike sparks.
Drive circuit 500 is made up of triode Q1, relay RLY1, for according to shutdown signal, closing heater
200。
For example, controller 400 exports shutdown signal by RLY_C, shutdown signal is low level.Drive circuit 500 receives
To after shutdown signal, relay RLY1 disconnects, and heater 200 stops heating.
Certain controller internal constituent elements, signal type, signal transmission form are not limited to present embodiment.
Fig. 3 is according to the schematic flow sheet of the method for controlling microwave oven of an embodiment of the invention, in this embodiment party
Include in formula, the step of method for controlling microwave oven：
S1, act in the microwave of the heated material in the microwave chamber 110 of micro-wave oven 10；
S2, intensity of illumination and light intensity signal corresponding to producing in sensing microwave chamber 110；
S3, judged whether that spark phenomenon occurs according to light intensity signal, if so, then produce shutdown signal and enter step S4,
If it is not, return to step S2；And
S4, stopped producing the microwave according to shutdown signal.
Wherein, step S3 includes following sub-step：
S31, the intensity of illumination in each scheduled time is calculated, and the intensity of illumination for calculating the two neighboring scheduled time is poor；
And
S32, judge spark phenomenon occurs when the intensity of illumination difference of the scheduled time exceedes reservation threshold.
The method for controlling microwave oven of embodiments of the present invention, the intensity of illumination change threshold values of micro-wave oven 10 is K.Micro-wave oven
After 10 start, heater 200 produces the microwave for heating.The illumination that light sensor 300 is sensed in microwave chamber 110 is strong
Degree, and illumination intensity value is exported to controller 400.For example, sensing pre-determined number in 1 second, handled by computing module 410
Obtain current environment illumination intensity value D.Current environment illumination intensity value D is read with set rate, Relative light intensity is obtained after processing
Value Dn(n=1,2,3 ..., its value is reading times relative value), the adjacent value of Relative light intensity twice DnDifference be intensity of illumination difference Δ
Dn, as intensity of illumination difference Δ DnWhen changing threshold values K more than intensity of illumination, spark phenomenon, controller 400 occur in microwave chamber 110
Judge to need to stop heating and producing shutdown signal, heater 200 is stopped heating by drive circuit 500.
For example, the intensity of illumination change threshold values K of micro-wave oven 10 is 640Lux.After micro-wave oven 10 starts, light sensor 300
The intensity of illumination in microwave chamber 110 is sensed, is sensed with the frequency of 100 times/second, that is, it is 1 second to sense the time, and sensing number is
100 times, at this 100 data outputs to computing module 410, computing module 410 is by removing maximum and minimum value, surplus value
The method being averaged calculates current environment intensity, and as the intensity of illumination in first scheduled time, is represented with variables D.With 10
Secondary/the speed of 0.1 second reads current light intensity level D and preserved, and often reads the sums of 10 calculating, 10 numerical value, i.e., every 0.1 second
Obtain a Relative light intensity value Dn, i.e. Dn=10*D.The adjacent value of Relative light intensity twice DnDifference be intensity of illumination difference Δ Dn, i.e. Δ Dn
=Dn-Dn-1.Set and preserve previous Relative light intensity value DnFor D1, and assign initial value D1=10*D, set preservation the latter relative
Illumination value is D2, and assign initial value D2=0, D2For the cumulative sums of 10 current light value D, illumination intensity value changes delta Dn=D2-
D1.First Relative light intensity value of 0.1 second is D1, second Relative light intensity value of 0.1 second is D2, by that analogy, n-th 0.1 second
Relative light intensity value be Dn.Judge module 420 is according to intensity of illumination difference Δ DnMagnitude relationship with intensity of illumination change threshold values K is sentenced
Whether reading occurs spark phenomenon.If intensity of illumination difference Δ DnMore than illumination variation threshold values K, judge to occur to beat in microwave chamber 110
Fiery phenomenon, controller 400 produce shutdown signal, stop heating by the driving heating device 200 of drive circuit 500；If do not have illumination
Strength Changes Δ DnLess than illumination variation threshold values K, repeat the above steps, persistently the intensity of illumination in microwave chamber 110 is carried out
Sense and according to intensity of illumination difference Δ D in the scheduled timenJudge whether that spark phenomenon occurs with illumination variation threshold values K, until plus
Thermal process terminates.
In this way, according to above-mentioned flow, light sensor 300 senses in real time to the intensity of illumination change in microwave chamber 110,
When sensing in the scheduled time intensity of illumination change and being more than setting illumination variation threshold values, controller 400 sends closing immediately
Signal, heater 200 stop heating via drive circuit 500, meanwhile, warning device 600 sends alarm, prompts user.
Certainly, sensing frequency and illumination variation threshold values K regard software architecture, depending on micro-wave oven practical structures, however it is not limited to
Present embodiment.
The method for controlling microwave oven of better embodiment of the present invention, it is strong that microwave cavity indoor illumination is sensed by light sensor
Degree change, in every 0.1 second intensity of illumination change judge, detection cycle is short, once micro-wave oven is struck sparks, can and
When stop heating, prevent unexpected generation, ensure micro-wave oven and the safety of user, reduce loss.Customer service is of the prior art to be lacked
Point so that workable vessel species is more during heating, expands use range, improves operating accuracy, avoids micro-wave oven from stopping
The false triggering only to work, it is ensured that safety simultaneously improves operating efficiency.
Meanwhile this method detects in real time in heating process, improves the security of operation.
In addition, this method is changed using adjacent scheduled time intensity of illumination, meet the detection method of setting change threshold values, have
Effect judges the generation of spark phenomenon, expands detection range, improves reliability, enhances the practicality of method.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment or example of the present invention.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case of not departing from the principle and objective of the present invention, replace and become
Type, the scope of the present invention are limited by claim and its equivalent.
Claims (6)
- A kind of 1. micro-wave oven, it is characterised in that including：Body, the body is formed with microwave chamber；Heater, for acting in the microwave of the heated material in the microwave cavity room；Light sensor, for sensing light intensity signal corresponding to the microwave cavity indoor illumination intensity and generation；The controller being connected with the heater and the light sensor, for judging whether to send out according to the light intensity signal Raw spark phenomenon simultaneously produces shutdown signal when spark phenomenon occurs, and the controller is used in the heated material predetermined When predetermined light intensity change is produced in the time, the shutdown signal is produced；AndDrive circuit, it is connected with the controller and the heater, for stopping the heating according to the shutdown signal Device；Wherein, the controller includes：Computing module, the intensity of illumination for calculating the two neighboring scheduled time are poor；AndJudge module, for judging spark phenomenon occurs when the intensity of illumination difference of the scheduled time exceedes predetermined threshold；The computing module is additionally operable to calculate current environment intensity of illumination, and strong as the illumination in first scheduled time Degree.
- 2. micro-wave oven as claimed in claim 1, it is characterised in that the light sensor is arranged in the body and is located at Outside the microwave cavity room.
- 3. micro-wave oven as claimed in claim 1, it is characterised in that the light sensor towards the microwave chamber center with Between the microwave chamber bottom surface.
- 4. micro-wave oven as claimed in claim 1, it is characterised in that the scheduled time is 0.1 second.
- 5. micro-wave oven as claimed in claim 1, it is characterised in that the micro-wave oven includes the report being connected with the drive circuit Alarm device, the warning device are used to send alarm according to the shutdown signal.
- 6. a kind of method for controlling microwave oven, it is characterised in that comprise the following steps：S1, act in the microwave of the heated material in the microwave cavity room of the micro-wave oven；S2, sense light intensity signal corresponding to the microwave cavity indoor illumination intensity and generation；S3, judged whether that spark phenomenon occurs according to the light intensity signal, if so, then produce shutdown signal and enter step S4, If it is not, return to step S2, wherein, when the heated material produces predetermined light intensity change in the given time, described in generation Shutdown signal；AndS4, stopped producing the microwave according to the shutdown signal；The S3 includes：S31：The intensity of illumination in each scheduled time is calculated, and calculates the intensity of illumination of the two neighboring scheduled time Difference；WithS32：Judge spark phenomenon occurs when the intensity of illumination difference of the scheduled time exceedes predetermined threshold；The S31 includes：Current environment intensity of illumination is calculated, and as the intensity of illumination in first scheduled time.
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| CN106879097A (en) * | 2017-01-19 | 2017-06-20 | 广东美的厨房电器制造有限公司 | A kind of detection method and micro-wave oven |
| CN112351538B (en) * | 2020-10-19 | 2022-07-19 | 威胜集团有限公司 | Method, system, terminal and storage medium for judging starting of microwave oven |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100281800B1 (en) * | 1996-06-27 | 2001-02-15 | 윤종용 | Microwave power cutoff device |
| JPH11159766A (en) * | 1997-11-26 | 1999-06-15 | Sanyo Electric Co Ltd | Heating cooker |
| US7263989B2 (en) * | 2003-07-29 | 2007-09-04 | Matsushita Electric Industrial Co., Ltd. | High-frequency heating apparatus equipped with oven hood |
| JP2006145146A (en) * | 2004-11-22 | 2006-06-08 | I'llb Solutions Co Ltd | Microwave oven |
| KR20080057747A (en) * | 2006-12-20 | 2008-06-25 | 주식회사 대우일렉트로닉스 | Control method of microwave range |
| JP5870239B2 (en) * | 2012-03-09 | 2016-02-24 | パナソニックＩｐマネジメント株式会社 | High frequency heating device |
| CN204730272U (en) * | 2015-05-12 | 2015-10-28 | 广东美的厨房电器制造有限公司 | Micro-wave oven |
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