CN109068432A - Microwave handling method and device - Google Patents
Microwave handling method and device Download PDFInfo
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- CN109068432A CN109068432A CN201810877698.3A CN201810877698A CN109068432A CN 109068432 A CN109068432 A CN 109068432A CN 201810877698 A CN201810877698 A CN 201810877698A CN 109068432 A CN109068432 A CN 109068432A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008676 import Effects 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 21
- 238000011156 evaluation Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000010257 thawing Methods 0.000 description 15
- 235000013305 food Nutrition 0.000 description 10
- 239000002184 metal Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 235000015278 beef Nutrition 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 235000013611 frozen food Nutrition 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
-
- 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
- H05B6/688—Circuits for monitoring or control for thawing
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/365—Thawing subsequent to freezing
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
The present invention discloses microwave handling method and device, which comprises obtains the parameter for microwave signal needed for handling handled object at intervals according to default adjustment interval duration；Parameter according to the microwave signal obtained at intervals carries out corresponding adjustment to the microwave signal for handling the handled object, and microwave signal adjusted is directed into the container for being used to accommodate the handled object.According to an embodiment of the present invention, the real-time change that handled object can be monitored, the carry out dynamic adjustment adaptive to the microwave signal for handling handled object, so that speed up processing, improves treatment effect.
Description
Technical field
The present invention relates to microwave technology more particularly to microwave handling methods and device.
Background technique
A kind of preferable method that cryogenic freezing preservation is to maintain food quality is carried out to food.It in the prior art, can be with
It is thawed using microwave to frozen food.But traditional microwave magnetron deforst technique is when thawing to frozen food,
The microwave that frequency is 2.4GHz~2.5GHz is generallyd use, the depth of microwave penetration of the frequency is shallower, its microwave electric field exists in addition
Cavity is unevenly distributed, and easily causes many hot spots, not can guarantee defrosting uniformity, so that food quality is deteriorated after making defrosting.
Summary of the invention
For overcome the deficiencies in the prior art, it is an object of that present invention to provide microwave treatment schemes, can accelerate processing speed
Degree, the purpose of the present invention are implemented with the following technical solutions:
A kind of microwave handling method, comprising:
The parameter for microwave signal needed for handling handled object is obtained at intervals according to default adjustment interval duration；
Parameter according to the microwave signal obtained at intervals is to described for handling the microwave of the handled object
Signal carries out corresponding adjustment, and microwave signal adjusted is directed into the container for being used to accommodate the handled object.
Preferably, described obtain includes: for the parameter of microwave signal needed for handling handled object
Handle several different microwave signals successively to the handled object, and several evaluations ginsengs of corresponding acquisition
Number；
The parameter of microwave signal needed for handling the handled object is determined according to several evaluation parameters.
Preferably, the frequency of several different microwave signals is different, the evaluation parameter includes the anti-of microwave signal
Penetrate coefficient；
The parameter for determining microwave signal needed for handling the handled object according to several evaluation parameters includes:
According to several reflection coefficients, determine that the parameter of the corresponding microwave signal of the smallest reflection coefficient is that the processing is located
The parameter of microwave signal needed for managing body.
Preferably, described obtain at intervals according to default adjustment interval duration for microwave needed for handling handled object
Include: before the parameter of signal
It is emitted to initial microwave signal in the container for accommodating handled object；
Obtain the forward power and backward power of the initial microwave signal；
Judge whether be placed with handled object in the container according to the forward power and backward power.
Preferably, described obtain at intervals according to default adjustment interval duration for microwave needed for handling handled object
The parameter of signal includes: to be spaced needed for duration is obtained respectively for handling handled object at intervals at least according to default adjustment
First parameter of two way microwave signals；
The parameter of the microwave signal obtained at intervals described in the foundation is to described for handling the handled object
Microwave signal carries out corresponding adjustment, and microwave signal adjusted is directed into the container packet for being used to accommodate the handled object
It includes:
The first parameter according at least two way microwave signals obtained at intervals is to described for handling quilt
At least two way microwave signals of processing body carry out corresponding adjustment；
At least two way microwave signals adjusted are directed respectively into through at least two paths described processed to being used to accommodate
The container of body.
Preferably, described obtain at intervals according to default adjustment interval duration for microwave needed for handling handled object
The parameter of signal includes: to be spaced needed for duration is obtained respectively for handling handled object at intervals at least according to default adjustment
First parameter of two way microwave signals；
The parameter of the microwave signal obtained at intervals described in the foundation is to described for handling the handled object
Microwave signal carries out corresponding adjustment, and microwave signal adjusted is directed into the container packet for being used to accommodate the handled object
It includes:
The first parameter according at least two way microwave signals obtained at intervals is to described for handling quilt
At least two way microwave signals of processing body carry out corresponding adjustment, to the second parameter of at least two way microwave signals adjusted
It is adjusted；
And by at least two way microwave signals after being adjusted to the second parameter through at least two paths be directed respectively into
In the container for accommodating the handled object.
Preferably, the processing handled object is defrosting handled object, the frequency of the microwave signal is less than 1GHz.
A kind of microwave heating appts, including container, control unit, the first microwave generate unit and the first microwave imports list
Member；The container is for accommodating handled object；Described control unit is used to generate unit to first microwave and provide according to pre-
If the first parameter of the first microwave signal that adjustment interval duration obtains at intervals；First microwave generate unit be used for
The first microwave import unit provides the first parameter of the first microwave signal obtained at intervals according to described control unit
The first microwave signal accordingly generated；The first microwave import unit is used to generating first microwave into that unit generates
One microwave signal is directed into the container.
Preferably, the microwave heating appts further include that the second microwave generates unit and the second microwave import unit；It is described
Control unit is also used to generate unit to second microwave and provides the obtained at intervals according to default adjustment interval duration
First parameter of two microwave signals；Second microwave generates unit and is used to provide to the second microwave import unit according to institute
State the second microwave signal that the first parameter of the second microwave signal that control unit obtains at intervals accordingly generates；Described second
Microwave import unit, which is used to second microwave generating the second microwave signal that unit generates, is directed into the container.
Include the first microwave signal generator, the first power amplifier and set preferably, first microwave generates unit
The first gain control unit or first phase control between first microwave signal generator and the first power amplifier
Unit or the first gain control unit being serially connected between first microwave signal generator and the first power amplifier and
One phase control unit；
Second microwave generates unit and includes the second microwave signal generator, the second power amplifier and be set to described the
The second gain control unit or second phase control unit between two microwave signal generators and the second power amplifier or
The second gain control unit and second phase being serially connected between second microwave signal generator and the second power amplifier
Control unit；
The microwave heating appts further include being connected between first power amplifier and the first microwave import unit
First detection unit and the second detection unit that is connected between second power amplifier and the second microwave import unit,
The first detection unit is used to detect the forward power and backward power of the first microwave signal, and detected signal is supplied to
Described control unit, the second detection unit are used to detect the forward power and backward power of the second microwave signal, and by institute
Detection signal is supplied to described control unit.
In the embodiment of the present invention, the real-time change of handled object can be monitored, the microwave for handling handled object is believed
Number adaptive carry out dynamic adjustment, so that speed up processing, improves treatment effect.
Detailed description of the invention
Fig. 1 to Fig. 4 is the flow chart of the microwave handling method of first to fourth embodiment of the invention；
Fig. 5 and Fig. 6 is the structural block diagram of the microwave heating appts of the present invention the 5th and sixth embodiment.
Specific embodiment
With reference to the accompanying drawing and specific embodiment, the present invention is described further, it should be noted that in not phase
Under the premise of conflict, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Refering to fig. 1, the microwave handling method of first embodiment of the invention includes:
S11, it is obtained at intervals according to default adjustment interval duration for microwave signal needed for handling handled object
Parameter.
The parameter of S12, the foundation microwave signal obtained at intervals is to described for handling the handled object
Microwave signal carries out corresponding adjustment, and microwave signal adjusted is directed into the container for being used to accommodate the handled object.
Preferably, being obtained in S11 and including: for the parameter of microwave signal needed for handling handled object
S111, several different microwave signals are handled successively to the handled object, and corresponds to and obtains several comment
Valence parameter；
S112, the parameter that microwave signal needed for handling the handled object is determined according to several evaluation parameters.
Preferably, the frequency of several different microwave signals is different, the evaluation parameter includes the anti-of microwave signal
Coefficient is penetrated, the parameter of microwave signal needed for S112 determines the processing handled object according to several evaluation parameters includes:
According to several reflection coefficients, determine that the parameter of the corresponding microwave signal of the smallest reflection coefficient is needed for the processing handled object
Microwave signal parameter.
Wherein, the reflection coefficient of microwave signal is equal to the backward power of microwave signal and the ratio of forward power.
In the present embodiment, the real-time change of handled object can be monitored, certainly to the microwave signal for handling handled object
The carry out dynamic adjustment of adaptation, so that speed up processing, improves treatment effect.
The method of the present embodiment is particularly suitable for defrosting processing, and the Quick uniform solution of different weight Frozen Body may be implemented
Freeze.
Fig. 2 shows the microwave handling method of second embodiment of the invention, illustratively to first embodiment in the present embodiment
In scheme carry out more specifical description and explanation, the present embodiment includes:
S201, it is emitted to initial microwave signal in the container for accommodating handled object.
S202, the forward power and backward power for obtaining initial microwave signal.
S203, judge whether be placed with handled object in the container according to the forward power and backward power, if so,
S204 is executed, otherwise, terminates process.
Preferably, can be by judging forward power and whether backward power meets preset relation and judge in the container
Whether handled object is placed with.
For example, in a preferred embodiments microwave letter can be obtained by calculating the ratio of backward power and forward power
Number reflection coefficient, and judge whether reflection coefficient is greater than preset threshold, located if so, can determine that and do not placed in the container
Body is managed, otherwise terminating process can determine that in the container and be placed with handled object, continue to execute S204.In food thawing example
In, the preset threshold is preferably 0.3 ± 10%.
S204, be emitted to several different microwave signals successively in the container, with successively to the handled object into
Row processing, and corresponding several evaluation parameters of acquisition.
Preferably, can adjust frequency within the preset frequency range according to predeterminated frequency interval, make different micro- of several frequencies
Wave signal is successively emitted in the container, and to be scanned to the handled object, the other parameters of each microwave signal can be with
It is identical.
It is appreciated that in other embodiments, different micro- of several other parameters (such as power and/or phase) can also be made
Wave signal is successively emitted in the container.
Preferably, the evaluation parameter may include the reflection coefficient of microwave signal.Several different microwave signals are successively
It is emitted in container, handled object is scanned, and then obtain the reflection coefficient of each microwave signal.
S205, the parameter that microwave signal needed for handling the handled object is determined according to several evaluation parameters.
Preferably, can determine that the smallest reflection coefficient is corresponding according to reflection coefficient corresponding to different microwave signals
Microwave signal parameter be handle handled object needed for microwave signal parameter.
For example, the smallest reflection coefficient is corresponding micro- if the microwave signal frequency being scanned to handled object is different
The frequency of wave signal is the frequency of microwave signal needed for handling handled object.
S206, the microwave signal for handling handled object is adjusted according to the parameter of identified microwave signal
It is whole.
In the present embodiment, preferably, can only be adjusted to a parameter of the microwave signal for handling handled object
It is whole.For example, in S205 after the frequency of determining required microwave signal, the frequency of microwave signal needed for handled object being handled
It is adjusted to identified frequency.
It is appreciated that in other embodiments, it can also be to the more than one of the microwave signal for handling handled object
Parameter is adjusted.
S207, being fed to microwave signal adjusted, the container is interior to handle handled object.
S208, judge whether the microwave signal adjusted reaches default adjustment interval to the processing time of handled object
Otherwise duration, returns if so, executing S209 and executes S207.
In food thawing example, the default adjustment interval duration preferably be can be 10 seconds ± 10%.
S209, judge whether handled object meets default processing target, if so, terminating process, otherwise, return and execute
S204。
In food thawing example, the default processing target, which can be, to be defrosted body and reaches preset temperature.
Fig. 3 shows the microwave handling method of third embodiment of the invention, uses at least two way microwave signals in the present embodiment
Handled object is handled, the present embodiment method includes:
S31, it is spaced at least two needed for duration obtains respectively at intervals for handling handled object according to default adjustment
First parameter of road microwave signal.
First parameter of S32, the foundation at least two way microwave signals obtained at intervals is to described for locating
At least two way microwave signals of reason handled object carry out corresponding adjustment.
S33, the second parameter of at least two way microwave signals adjusted is adjusted.
S34, at least two way microwave signals after being adjusted to second parameter are led respectively through at least two paths
Enter to the container for accommodating the handled object.
In the present embodiment, at least two way microwave signals container, energy-incident will be directed into using at least two lead-in paths
Port is more, travels to handled object and its inside from different angles, and container cavity energy distribution is complicated, can greatly reduce heat
Point is formed.In addition, can further avoid forming heat in fixed area by adjusting the second parameter of at least two way microwave signals
Point.
Fig. 4 shows the microwave handling method of fourth embodiment of the invention, similar with embodiment three in the present embodiment, using extremely
Few two way microwave signals handle handled object, and illustratively carry out to the scheme in 3rd embodiment more specifical
Description and explanation.For ease of description, being illustrated by taking two way microwave signals as an example below, it will be understood that be described below expansible
To more than two way microwave signals.The present embodiment method includes:
S401, it is emitted to initial microwave signal in the container for accommodating handled object.
In the present embodiment, being wherein emitted in container all the way in two way microwave signals can be made, or can also be made each
Road microwave signal is emitted in container.
S402, the forward power and backward power for obtaining the initial microwave signal being emitted in the container respectively.
If transmitting to the microwave signal in container more than all the way, can obtain respectively per the forward power of microwave signal all the way and
Backward power.
S403, judge whether be placed with handled object in the container according to the forward power and backward power, if so,
S404 is executed, otherwise, terminates process.
It is appreciated that whether preset relation can be met by the forward power and backward power for judging each road microwave signal
To judge whether be placed with handled object in the container.
It, can be by calculating the backward power and forward power of each road microwave signal for example, in a preferred embodiments
Ratio obtains reflection coefficient, and judges whether reflection coefficient is all larger than preset threshold, does not put in the container if so, can determine that
Handled object is set, otherwise terminating process can determine that in the container and be placed with handled object, continue to execute S404.In food solution
Freeze in example, the preset threshold is preferably 0.3 ± 10%.
S404, the microwave signal all the way for keeping several first parameters different are successively emitted in the container, successively to institute
It states handled object to be handled, and corresponding several evaluation parameters of acquisition.
Preferably, the first parameter can be the frequency of microwave signal；It can within the preset frequency range, according between predeterminated frequency
Every adjustment frequency, the microwave signal for keeping several frequencies different is successively emitted in the container, successively to the handled object
It is handled.
It is appreciated that in other embodiments, it can also be by several other parameters (such as power or phase) as the first ginseng
Number, and the microwave signal for keeping several first parameters different is successively emitted in the container.
Preferably, the evaluation parameter preferably may include the reflection coefficient of microwave signal.Several different microwave letters
It number is successively emitted in container, handled object is scanned, and then obtain the reflection coefficient of each microwave signal.
It is appreciated that in a further embodiment, the microwave letter that several first parameters are different can also be made on two-way path
Number difference successively emits to container, with make several first parameters different on two-way path microwave signal successively to quilt
Processing body is scanned, and the corresponding several evaluation parameters of corresponding acquisition each path.
S405, first that two way microwave signals needed for handling the handled object are determined according to several evaluation parameters
Parameter.
Preferably, can determine that the smallest reflection coefficient is corresponding according to reflection coefficient corresponding to different microwave signals
Microwave signal the first parameter be handle handled object needed for microwave signal the first parameter.
For example, if the microwave signal frequency being scanned to handled object is different (i.e. the first parameter is frequency), it is minimum
The corresponding microwave signal of reflection coefficient frequency be handle handled object needed for microwave signal frequency.
If there is two way microwave signals scanning, the corresponding several evaluation parameters of two way microwave signals determine two the
First parameter of one parameter respectively as two way microwave signals.
S406, the two-way microwave for handling handled object is believed according to the first parameter of identified microwave signal
It number is adjusted.
In the present embodiment, preferably, can only be adjusted to the first parameter of the microwave signal for handling handled object
It is whole.For example, in S405 after the frequency of determining required microwave signal, two way microwave signals needed for handled object being handled
Frequency is adjusted to identified frequency.
S407, the second parameter of the two way microwave signals adjusted is adjusted.
Second parameter for example can be power or phase of microwave signal etc..By adjusting two way microwave signals
The second parameter, change with making the second parameter space, thus it is possible to vary the intracorporal magnetic distribution of container chamber reaches uniform treatment
Purpose.
It is appreciated that in additional embodiment, can also power to two way microwave signals and phase be adjusted.
S408, the two way microwave signals after the second parameter of adjustment are fed in the container to handled object
Reason.
S409, judge whether the two way microwave signals after the second parameter of the adjustment reach the processing time of handled object
Otherwise scheduled duration, returns if so, executing S410 and executes S408.
In food thawing example, the default adjustment interval duration preferably be can be 10 seconds ± 10%.
S410, judge whether handled object meets default processing target, if so, terminating process, otherwise, return and execute
S404。
In food thawing example, the default processing target, which can be, to be defrosted body and reaches preset temperature.
Fig. 5 shows the microwave heating appts 10 of fifth embodiment of the invention, including container 12, control unit 18, microwave produce
Raw unit 14 and microwave import unit 16.Container 12 is for accommodating handled object；Control unit 18 is used to generate unit to microwave
14 provide the first parameter of the microwave signal obtained at intervals according to default adjustment interval duration；Microwave generates unit 14 and is used for
What the first parameter for providing the microwave signal obtained at intervals according to control unit 18 to microwave import unit 16 accordingly generated
Microwave signal；Microwave import unit 16 is used to the microwave signal that microwave generation unit 14 generates being directed into container 12.Wherein,
One parameter for example can be the frequency of microwave signal.
Include microwave signal generator 142, power amplifier 144 and be serially connected with microwave preferably, microwave generates unit 14
Gain control unit 146 and phase control unit 148 between signal generator 142 and power amplifier 144.It is understood that
, in a further embodiment, gain control unit 146 can be only set between microwave signal generator 142 and power amplifier 144
Or phase control unit 148.Gain control unit 146 is for being adjusted the power of microwave signal, phase control unit
148 for being adjusted the phase of microwave signal.
Preferably, setting detection unit 20 between power amplifier 144 and microwave import unit 16, detection unit 20 is used for
The forward power and backward power of microwave signal are detected, and detected signal is supplied to control unit 18.Detection unit 20
It such as may include directional coupler.
Preferably, microwave, which generates, can set isolator 22 between unit 14 and detection unit 20.
Preferably, container 12 has metal cavity, microwave import unit 16 includes being set to the intracorporal antenna of wire chamber.Antenna
It can be inverse-F antenna, loop antenna or folded doublet.
Fig. 6 shows the microwave heating appts 30 of sixth embodiment of the invention, including container 12, control unit 18, first are micro-
Wave generates unit 14, the first microwave import unit 16, the second microwave and generates unit 34 and the second microwave import unit 36.Container
12 for accommodating handled object；Control unit 18, which is used to generate unit 14 to the first microwave to provide, is spaced duration according to default adjustment
First parameter of the first microwave signal obtained at intervals and to the second microwave generate unit 34 provide according to default adjustment
First parameter of the second microwave signal that interval duration obtains at intervals；First microwave generates unit 14 and is used for the first microwave
Import unit 16 provide that the first parameter of the first microwave signal obtained at intervals according to control unit 18 accordingly generates the
One microwave signal；First microwave import unit 16 is used to for the first microwave signal that the first microwave generation unit 14 generates being directed into
Container 12；Second microwave generates unit 34 and is used to provide according to control unit 18 at intervals to the second microwave import unit 36
The second microwave signal that first parameter of the second microwave signal obtained accordingly generates；Second microwave import unit 36 is used for the
Two microwaves generate the second microwave signal that unit 34 generates and are directed into container 12.Wherein, the first parameter for example can be microwave letter
Number frequency.
Preferably, it includes the first microwave signal generator 142, the first power amplifier 144 that the first microwave, which generates unit 14,
And it is serially connected with the first gain control unit 146 between the first microwave signal generator 142 and the first power amplifier 144 and
One phase control unit 148.It should be understood that in a further embodiment, the first microwave signal generator 142 and the first power
The first gain control unit 146 or first phase control unit 148 can be only set between amplifier 144.First gain control unit
146 for being adjusted the power of the first microwave signal, and first phase control unit 148 is used for the phase to the first microwave signal
Position is adjusted.
It includes the second microwave signal generator 342, the second power amplifier 344 and concatenation that second microwave, which generates unit 34,
The first gain control unit 446 and first phase between the second microwave signal generator 342 and the second power amplifier 344
Control unit 348.It should be understood that in a further embodiment, the second microwave signal generator 342 and the second power amplifier
The second gain control unit 346 or second phase control unit 348 can be only set between 344.Second gain control unit 346 is used for
The power of second microwave signal is adjusted, second phase control unit 348 is used to carry out the phase of the second microwave signal
Adjustment.
Preferably, first detection unit 20 is set between the first power amplifier 144 and the first microwave import unit 16, the
One detection unit 20 is used to detect the forward power and backward power of the first microwave signal, and detected signal is supplied to control
Unit 18.Second detection unit 30, the second detection are set between the second power amplifier 344 and the second microwave import unit 36
Unit 30 is used to detect the forward power and backward power of the second microwave signal, and detected signal is supplied to control unit
18.First detection unit 20 and second detection unit 30 for example may include directional coupler.
Preferably, the first microwave, which generates, can set the first isolator 22 between unit 14 and first detection unit 20.Second is micro-
Wave, which generates, can set the second isolator 32 between unit 34 and second detection unit 30.
Preferably, container 12 has metal cavity, the first microwave import unit 16 and the second microwave import unit 36 include
Antenna at different location in metal cavity.Antenna can be inverse-F antenna, loop antenna or folded doublet.
It should be understood that in other embodiments, microwave heating appts of the invention can be microwave thawing device, above-mentioned
Microwave signal can be frequency be less than 1GHz microwave thawing signal.
In the present embodiment, at least two way microwave signals container, energy-incident will be directed into using at least two lead-in paths
Port is more, travels to handled object and its inside from different angles, and container cavity energy distribution is complicated, can greatly reduce heat
Point is formed.In addition, can further avoid forming heat in fixed area by adjusting the second parameter of at least two way microwave signals
Point.
In the embodiment of the present invention, preferably, the processing handled object is defrosting handled object, the frequency of the microwave signal
Rate is less than 1GHz.The handled object is for example including food, blood, blood plasma, refrigerator official rank.According to an embodiment of the present invention
Scheme is thawed from -20 degree to -3 degree, the time used, internal-external temperature difference was small less than 10 minutes so that defrosting 2.5kg freezes beef as an example
In 5 degree.It as low as 50 grams, greatly to 5 kilograms of freezing beef etc. meat, can uniformly thaw from -20 degree or -40 degree to -5 degree
~-1 degree, internal-external temperature difference is less than 5 degree.
It is appreciated that the scheme of the embodiment of the present invention can also be used in other suitable applications except thawing.
As seen through the above description of the embodiments, those skilled in the art can be understood that above-mentioned implementation
Example method can be realized by means of software and necessary general hardware platform.Based on this understanding, technology of the invention
Substantially the part that contributes to existing technology can be embodied in the form of software products scheme in other words, the computer
Software product can store in storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that one
Equipment (can be personal computer, server or the network equipment etc.) executes each embodiment or embodiment of the invention
Method described in certain parts.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of microwave handling method characterized by comprising
The parameter for microwave signal needed for handling handled object is obtained at intervals according to default adjustment interval duration；
Parameter according to the microwave signal obtained at intervals is to described for handling the microwave signal of the handled object
Corresponding adjustment is carried out, and microwave signal adjusted is directed into the container for being used to accommodate the handled object.
2. microwave handling method as described in claim 1, which is characterized in that the acquisition is for handling needed for handled object
The parameter of microwave signal includes:
Handle several different microwave signals successively to the handled object, and corresponding several evaluation parameters of acquisition；
The parameter of microwave signal needed for handling the handled object is determined according to several evaluation parameters.
3. microwave handling method as claimed in claim 2, which is characterized in that the frequency of several different microwave signals is not
Together, the evaluation parameter includes the reflection coefficient of microwave signal；
The parameter for determining microwave signal needed for handling the handled object according to several evaluation parameters includes:
According to several reflection coefficients, determine that the parameter of the corresponding microwave signal of the smallest reflection coefficient is the processing handled object
The parameter of required microwave signal.
4. microwave handling method as claimed in claim 3, which is characterized in that described to be spaced duration intermittent according to default adjustment
Ground includes: before obtaining the parameter for microwave signal needed for handling handled object
It is emitted to initial microwave signal in the container for accommodating handled object；
Obtain the forward power and backward power of the initial microwave signal；
Judge whether be placed with handled object in the container according to the forward power and backward power.
5. microwave handling method as claimed in claim 3, it is characterised in that:
It is described to obtain the parameter for microwave signal needed for handling handled object at intervals according to default adjustment interval duration
It include: that at least two-way microwave needed for being obtained respectively at intervals according to default adjustment interval duration for handling handled object is believed
Number the first parameter；
The parameter of the microwave signal obtained at intervals described in the foundation is to described for handling the microwave of the handled object
Signal carries out corresponding adjustment, and microwave signal adjusted is directed into and is used to accommodate the container of the handled object and includes:
The first parameter according at least two way microwave signals obtained at intervals is to described processed for handling
At least two way microwave signals of body carry out corresponding adjustment；
At least two way microwave signals adjusted are directed respectively into through at least two paths to being used to accommodate the handled object
Container.
6. microwave handling method as claimed in claim 5, which is characterized in that described to be spaced duration intermittent according to default adjustment
It includes: to divide at intervals according to default adjustment interval duration that ground, which is obtained for the parameter of microwave signal needed for handling handled object,
It Huo get not be for handling needed for handled object at least the first parameter of two way microwave signals；
The parameter of the microwave signal obtained at intervals described in the foundation is to described for handling the microwave of the handled object
Signal carries out corresponding adjustment, and microwave signal adjusted is directed into and is used to accommodate the container of the handled object and includes:
The first parameter according at least two way microwave signals obtained at intervals is to described processed for handling
At least two way microwave signals of body carry out corresponding adjustment, carry out to the second parameter of at least two way microwave signals adjusted
Adjustment；
And at least two way microwave signals after being adjusted to the second parameter are directed respectively into through at least two paths to being used to hold
Receive the container of the handled object.
7. such as microwave handling method as claimed in any one of claims 1 to 6, which is characterized in that the processing handled object is solution
Freeze handled object, the frequency of the microwave signal is less than 1GHz.
8. a kind of microwave heating appts, which is characterized in that micro- including container, control unit, the first microwave generation unit and first
Wave import unit；The container is for accommodating handled object；Described control unit is used to generate unit to first microwave and mention
The first parameter for the first microwave signal obtained at intervals according to default adjustment interval duration；First microwave generates single
Member is for providing the first microwave signal obtained at intervals according to described control unit to the first microwave import unit
The first microwave signal that first parameter accordingly generates；The first microwave import unit is used to first microwave generating unit
The first microwave signal generated is directed into the container.
9. microwave heating appts as claimed in claim 8, which is characterized in that the microwave heating appts further include the second microwave
Generate unit and the second microwave import unit；Described control unit is also used to generate unit to second microwave and provide according to pre-
If the first parameter of the second microwave signal that adjustment interval duration obtains at intervals；Second microwave generate unit be used for
The second microwave import unit provides the first parameter of the second microwave signal obtained at intervals according to described control unit
The second microwave signal accordingly generated；The second microwave import unit is used to generating second microwave into that unit generates
Two microwave signals are directed into the container.
10. microwave heating appts as claimed in claim 9, it is characterised in that: it includes first that first microwave, which generates unit,
Microwave signal generator, the first power amplifier and be set between first microwave signal generator and the first power amplifier
The first gain control unit or first phase control unit or be serially connected with first microwave signal generator and the first function
The first gain control unit and first phase control unit between rate amplifier；
The second microwave generation unit is micro- including the second microwave signal generator, the second power amplifier and set on described second
The second gain control unit or second phase control unit between wave generator and the second power amplifier concatenate
The second gain control unit and second phase control between second microwave signal generator and the second power amplifier
Unit；
The microwave heating appts further include be connected between first power amplifier and the first microwave import unit
One detection unit and the second detection unit being connected between second power amplifier and the second microwave import unit, it is described
First detection unit is used to detect the forward power and backward power of the first microwave signal, and described in detected signal is supplied to
Control unit, the second detection unit are used to detect the forward power and backward power of the second microwave signal, and will be detected
Signal is supplied to described control unit.
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| CN201810877698.3A CN109068432A (en) | 2018-08-03 | 2018-08-03 | Microwave handling method and device |
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| CN201810877698.3A CN109068432A (en) | 2018-08-03 | 2018-08-03 | Microwave handling method and device |
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