CN109549458A - Cooking apparatus and its mangneto driving source - Google Patents
Cooking apparatus and its mangneto driving source Download PDFInfo
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- CN109549458A CN109549458A CN201710876948.7A CN201710876948A CN109549458A CN 109549458 A CN109549458 A CN 109549458A CN 201710876948 A CN201710876948 A CN 201710876948A CN 109549458 A CN109549458 A CN 109549458A
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- magnetic field
- cooking apparatus
- driving source
- pot body
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- 238000010411 cooking Methods 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 79
- 230000005284 excitation Effects 0.000 claims abstract description 46
- 230000009471 action Effects 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 241001024099 Olla Species 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 235000016709 nutrition Nutrition 0.000 abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000000605 extraction Methods 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000004945 emulsification Methods 0.000 abstract description 11
- 239000004615 ingredient Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 235000014676 Phragmites communis Nutrition 0.000 abstract description 7
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 230000010355 oscillation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 19
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 230000035764 nutrition Effects 0.000 description 6
- 235000013305 food Nutrition 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/0075—Electrical details, e.g. drive or control circuits or methods
- H02N2/008—Means for controlling vibration frequency or phase, e.g. for resonance tracking
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of cooking apparatus and its mangneto driving source, the cooking apparatus includes pot body ontology and magnetostrictive member, and the mangneto driving source includes: magnetostriction exciting unit, including excitation coil, and excitation coil includes AC coil and DC coil；Excitation power supply, it is connected with magnetostriction exciting unit, excitation power supply is by providing excitation energy so that AC coil and DC coil provide different magnetic field to magnetostriction exciting unit, wherein, AC coil provides alternating current magnetic field, DC coil provides bias magnetic field, bias magnetic field is added to alternating current magnetic field to form alternation total magnetic field, magnetostrictive member flexible amplitude-controllable under the action of alternation total magnetic field, to drive pot body ontology to be vibrated, so as to promote materials abstraction during the cooking process, emulsification, water suction, so that the nutritional ingredient of material obtains depth extraction, promote mouthfeel, and compared to using iron plate mode of vibration, without the mechanical fatigue of vibrating reed, and without providing an oscillation space.
Description
Technical field
The invention belongs to living electric apparatus technical fields, specifically, the present invention relates to the mangneto driving source of cooking apparatus and
Cooking apparatus.
Background technique
Conventional electric cooker is usually to start by beginning or reservation, electric cooker starts to preheat after user puts rice and water well
It cooks, during cooking, the nutrition of the grain of rice or other food materials is only absorbed by moisture oneself, but because of moisture major part
Time is in slow motion state, so the ability that moisture draws food materials nutrition is also just poor, leads to the food mouthfeel cooked
It is poor.
Therefore, existing electric cooker is further improved.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
First purpose is to propose a kind of mangneto driving source of cooking apparatus, by the magnetostrictive member being arranged on cooking apparatus
Alternating magnetic field is provided, so that magnetostrictive member is under the action of alternating magnetic field, deformation occurs, to drive pot body ontology to be vibrated,
So as to promote materials abstraction, emulsification, water suction during the cooking process, so that the nutritional ingredient of material obtains depth extraction, mention
Mouthfeel is risen, and due to providing magnetic field by two coils of AC coil and DC coil, can effectively change alternation magnetic
The direction of field, so that the flexible amplitude-controllable of magnetostrictive member cooks effect so that the vibration of pot body ontology is controllable
Controllably, and compared to iron plate mode of vibration is used, without the mechanical fatigue of vibrating reed, and it is empty without providing a vibration
Between.
Second object of the present invention is to propose a kind of cooking apparatus.
In one aspect of the invention, the invention proposes a kind of mangneto driving sources of cooking apparatus.It is according to the present invention
Embodiment, the cooking apparatus include pot body ontology and magnetostrictive member, and the mangneto driving source includes: that magnetostriction excitation is single
Member, the magnetostriction exciting unit includes excitation coil, and the excitation coil includes AC coil and DC coil；Excitation electricity
Source, the excitation power supply are connected with the magnetostriction exciting unit, and the excitation power supply to the magnetostriction by motivating
Unit provides excitation energy so that the AC coil and the DC coil provide different magnetic field, wherein the AC line
Circle provides alternating current magnetic field, and the DC coil provides bias magnetic field, and the bias magnetic field is added to the alternating current magnetic field to be formed
Alternation total magnetic field, the magnetostrictive member flexible amplitude-controllable under the action of the alternation total magnetic field, to drive the pot body
Ontology is vibrated.
The mangneto driving source of cooking apparatus according to an embodiment of the present invention gives magnetostriction exciting unit by excitation power supply
Excitation energy is provided so that AC coil and DC coil provide different magnetic field, wherein AC coil provides alternating current magnetic field, directly
Streamline circle provides bias magnetic field, and bias magnetic field is added to alternating current magnetic field to form alternation total magnetic field, and magnetostrictive member is total in alternation
Stretch amplitude-controllable under the action of magnetic field, to drive pot body ontology to be vibrated, so as to promote material during the cooking process
Extraction, emulsification, water suction promote mouthfeel so that the nutritional ingredient of material obtains depth extraction, and due to by AC coil and
Two coils of DC coil provide magnetic field, therefore can effectively change the direction of alternating magnetic field, so that magnetostrictive member
Flexible amplitude-controllable, so that the vibration of pot body ontology is controllable, culinary art effect is controllable, and compared to using iron plate vibration side
Formula, without the mechanical fatigue of vibrating reed, and without providing an oscillation space.
In addition, the mangneto driving source of cooking apparatus according to the above embodiment of the present invention can also have following additional skill
Art feature:
In some embodiments of the invention, the magnetostrictive member is magneto strictive material, the magnetostriction material
The bed of material is arranged at least part surface of the pot body ontology.
In some embodiments of the invention, the AC coil is arranged concentrically with the DC coil.
In some embodiments of the invention, between the intensity of the bias magnetic field and the intensity peak of the alternating current magnetic field
Meet relationship: H2pp*3/4 >=H1 > H2pp*1/4, wherein H1 is the intensity of the bias magnetic field, and H2pp is the alternating current magnetic field
Intensity peak.
In some embodiments of the invention, the excitation power supply exports ac-excited source and DC source of energization, institute respectively
State the of first control circuit that magnetostriction exciting unit further includes the corresponding AC coil and the corresponding DC coil
Two control circuits, wherein the ac-excited source is AC coil power supply, and the first control circuit controls the exchange
Coil carries out resonance, and the DC source of energization is DC coil power supply, and the second control circuit controls the AC line
The curent change of circle.
In some embodiments of the invention, the first control circuit includes the first R-T tube and resonant capacitance,
One end after the resonant capacitance is in parallel with the AC coil is connected with ac-excited source, and the resonant capacitance is exchanged with described
The other end after coils from parallel connection of coils is connected with the collector of first R-T tube, the emitter of first R-T tube
Ground connection.
In some embodiments of the invention, the second control circuit includes protection diode, rectifier diode, energy storage
Capacitor and second switch, wherein the anode of the protection diode is connected to institute after being connected with one end of the DC coil
State DC source of energization, the other end of the DC coil respectively with the collector of the second switch and the rectifier diode
Anode be connected, the cathode of the rectifier diode be connected with the cathode of the protection diode afterwards and the storage capacitor one
End is connected, the other end ground connection of the storage capacitor, the emitter ground connection of the second switch.
In some embodiments of the invention, the magnetostrictive member is made of Tb0.3Dy0.7Fe1.95 alloy.
In some embodiments of the invention, the magneto strictive material with a thickness of 10 μm~1mm.
In some embodiments of the invention, the pot body ontology is metal pan, ceramic pan, casserole or olla.
In some embodiments of the invention, the pot body ontology is metal pan, and the magneto strictive material is arranged in
In at least part of the pot body body outer surface.
In some embodiments of the invention, the pot body ontology is ceramic pan, casserole or olla, the magnetostriction material
The bed of material is arranged in the outer surface of pot body ontology or at least part of inner surface.
In some embodiments of the invention, the cooking apparatus uses IH (Indirect Heating, indirect heating)
Heating method is heated.
In some embodiments of the invention, the cooking apparatus further includes foot pad.
In another aspect of the invention, the invention proposes a kind of cooking apparatus.According to an embodiment of the invention, described
Cooking apparatus includes above-mentioned mangneto driving source.
Cooking apparatus according to an embodiment of the present invention can cook setting by using above-mentioned mangneto driving source
Magnetostrictive member on utensil provides alternating magnetic field, so that magnetostrictive member is under the action of alternating magnetic field, deformation occurs, with band
Dynamic pot body ontology is vibrated, so as to promote materials abstraction, emulsification, water suction during the cooking process, so that the nutrition of material
Ingredient obtains depth extraction, promotes mouthfeel, and due to providing magnetic field by two coils of AC coil and DC coil,
The direction of alternating magnetic field can effectively be changed, so that the flexible amplitude-controllable of magnetostrictive member, so that pot body ontology
Vibration it is controllable, culinary art effect it is controllable, and compared to use iron plate mode of vibration, without the mechanical fatigue of vibrating reed, and
Without providing an oscillation space.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 a be pot body ontology according to an embodiment of the invention be metal pan when magneto strictive material position show
It is intended to；
Fig. 1 b be further embodiment according to the present invention pot body ontology be metal pan when magneto strictive material position
Schematic diagram；
Fig. 2 a be pot body ontology according to an embodiment of the invention be nonmetal pot when magneto strictive material position
Schematic diagram；
Fig. 2 b be further embodiment according to the present invention pot body ontology be nonmetal pot when magneto strictive material position
Set schematic diagram；
Fig. 3 a is the structural schematic diagram of mangneto driving source according to an embodiment of the invention；
Fig. 3 b is the structural schematic diagram of the mangneto driving source of further embodiment according to the present invention；
Fig. 4 is the schematic diagram of excitation coil according to an embodiment of the invention；
Fig. 5 is the waveform diagram of alternation total magnetic field according to an embodiment of the invention；
When Fig. 6 a is that magnetostriction exciting unit according to an embodiment of the invention is worked with continuous current mode
The current waveform figure of excitation coil；
Fig. 6 b is that the magnetostriction exciting unit of further embodiment according to the present invention is worked with discontinuous current mode
When excitation coil current waveform figure；
Fig. 6 c is the magnetostriction exciting unit of another embodiment according to the present invention with the progress of critical continuous mode current-mode
The current waveform figure of excitation coil when work.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In one aspect of the invention, the invention proposes a kind of mangneto driving sources of cooking apparatus.It is according to the present invention
Embodiment, cooking apparatus may include pot body ontology and magnetostrictive member, which is made of magnetostriction materials.Hair
Bright people's discovery, by being arranged at the apparatus body of cooking apparatus (such as cooker body, upper cover) or pot body ontology position by mangneto
Magnetostrictive member made of telescopic material, deformation occurs for meeting under the action of alternating magnetic field for the magnetostrictive member, so as to band
Dynamic pot body ontology vibration, and the vibration of pot body ontology can promote materials abstraction, emulsification, water suction, so that the nutritional ingredient of material
Depth extraction is obtained, promotes mouthfeel, and compared to iron plate mode of vibration is used, without the mechanical fatigue of vibrating reed, and nothing
One oscillation space need to be provided.Wherein, alternating magnetic field can be provided by mangneto driving source.
In some embodiments of the invention, magnetostrictive member is magneto strictive material 200, magneto strictive material
200 are arranged at least part surface of pot body ontology 100.
Specifically, with reference to Fig. 1 a- Fig. 2 b, cooking apparatus may include pot body ontology 100 and magneto strictive material 200,
Wherein, magneto strictive material 200 is arranged at least part surface of pot body ontology 100, in this way in the work of alternating magnetic field
Under, magneto strictive material 200 will deformation occurs, so as to directly drive pot body ontology 100 to vibrate.And work as magnetostriction
When part is arranged in the upper cover or cooker body of cooking apparatus, it can will be vibrated by the component on cooking apparatus and indirectly be transferred to pot
Body ontology 100, and the vibration of pot body ontology 100 can make cooking food vibrate, and then can promote materials abstraction, cream
Change, water suction, so that the nutritional ingredient of material obtains depth extraction, promotes mouthfeel.In practical applications, specifically by magnetostrictive member
It is arranged in which way wherein, can selects to determine according to the actual situation, here with no restrictions.
In some embodiments of the present invention, pot body ontology 100 can be metal pan, ceramic pan, casserole or olla, to this
Field technical staff can select according to actual needs.
Further, a specific embodiment according to the present invention, pot body ontology 100 are metal pan, magnetostriction materials
Layer 200 is arranged at least part of 100 outer surface of pot body ontology.With reference to Fig. 1 a and Fig. 1 b, magneto strictive material 200 can
It, can be according to reality to this those skilled in the art on partial outer face to be arranged in pot body ontology 100 or on entire outer surface
Border is selected, it is preferred that as shown in Figure 1 b, magneto strictive material 200 can be arranged in the entire of pot body ontology 100
On outer surface.As a result, by arranging magneto strictive material on the outer surface of entire pot body ontology, the magneto strictive material
Deformation occurs under action of alternating magnetic field, drives the stationary vibration of pot body ontology, and the vibration of pot body ontology can accelerate object in pot
Material absorbs the extraction of moisture, nutrition, and then improves it and cook effect.
Another specific embodiment according to the present invention, pot body ontology 100 are ceramic pan, casserole or olla, magnetostriction
Material layer 100 can be arranged in the outer surface of pot body ontology 100 or at least part of inner surface.For example, magnetostriction material
The bed of material 200 can be arranged on the partial outer face of pot body ontology 100 or entire outer surface on or portion inner surface or part in
Surface can select this those skilled in the art according to actual needs, and with reference to Fig. 2 a, magneto strictive material 200 can
To be arranged in the entire outer surface of pot body ontology 100, with reference to Fig. 2 b, magneto strictive material 200 can be arranged in pot body ontology
On 100 entire inner surface.As a result, by arranging magnetostriction materials on the outer surface of entire pot body ontology or inner surface
Layer, deformation occurs under the action of alternating magnetic field for the magneto strictive material, drive pot body ontology stationary vibration, and pot body ontology
Vibration material in pot can be accelerated to absorb the extraction of moisture, nutrition, and then improve its and cook effect.
In some embodiments of the invention, magnetostrictive member may include magnetostrictive Metal and Alloy, ferrite
Magnetostriction materials, rare earth intermetallic compound magnetostriction materials etc..In one particular embodiment of the present invention, mangneto is stretched
Contracting part can be rare earth intermetallic compound, such as TbFe2, DyFe2, SmFe2 etc..Due to the magnetostriction coefficient of these materials
Very big, the response time of magnetostrictive effect is short, so that pot body ontology 100 of the invention can have very strong vibration
Frequency can effectively facilitate materials abstraction, emulsification, water suction in cooking, improve cooking speed, reduce the nutrition damage of culinary art material
It loses, improves cooking quality.
In some embodiments of the invention, the method for preparing magnetostrictive member has very much, such as pressure difference method, alloy are molten
Body consecutive solidification method, czochralski method etc..It in one particular embodiment of the present invention, can be directly from the melt of magnetostrictive member
Draw out the magnetostrictive member with various cross sectional shapes.Thus, it is possible to magnetostrictive member of the present invention quickly be made, so
It can be formed on the surface of pot body ontology or on apparatus body by modes such as attachings afterwards.
Further, a specific embodiment according to the present invention, magnetostrictive member can be by Tb0.3Dy0.7Fe1.95
Alloy is made, specifically, magnetostrictive member such as magneto strictive material 200 can pass through the modes such as thermal spraying or coating or etching
It is formed on the surface of pot body ontology 100.Inventors have found that the magnetostriction materials made of Tb0.3Dy0.7Fe1.95 alloy
The coefficient of strain λ of layer 200 is up to 800~1200 × 10-6(500~1000Oe, 0~5MPa), saturation magnetostriction constant is up to 1200
~1500 × 10-6, Curie temperature up to 380~420 DEG C, the magnetomechanical coefficient of coup up to 0.7~0.75, energy conversion efficiency up to 50~
59%, energy density is up to 14~25KJ/m3, compression strength is not less than 700MPa, and resistivity is up to 60 × 10-8Ω m, density reach
9.25g/cm3, pot body ontology stationary vibration can be driven by being thus arranged on the surface of pot body ontology, and pot body ontology
Vibration can accelerate materials abstraction, emulsification, water suction, improve cooking speed, reduce the nutritive loss of culinary art material, improve culinary art matter
Amount.
In some embodiments of the invention, the thickness of magneto strictive material 200 is not particularly restricted, this field skill
Art personnel can select according to actual needs, a specific embodiment according to the present invention, magneto strictive material 200
Thickness can be 10 μm~1mm.Inventors have found that if the thickness of magneto strictive material 200 will lead to mangneto and stretch less than 10 μm
Compression material layer 200 and 100 bond strength of pot body ontology decline, and the thickness of magneto strictive material 200 is greater than 1mm, will lead to
Magneto strictive material 200 is easy to fall off and increased costs.It can protected using the magneto strictive material of the application range as a result,
Have while excellent bond strength between card pot body ontology and magneto strictive material and reduces its cost.
According to an embodiment of the invention, mangneto driving source includes: 310 He of magnetostriction exciting unit with reference to Fig. 1 a- Fig. 3 b
Excitation power supply 320, wherein magnetostriction exciting unit 310 includes excitation coil L, and excitation coil includes AC coil Lac and straight
Streamline circle Ldc；Excitation power supply 320 is connected with magnetostriction exciting unit 310, and excitation power supply 320 to magnetostriction by motivating
Unit 310 provides excitation energy so that AC coil Lac and DC coil Ldc provide different magnetic field, wherein AC coil
Lac provides alternating current magnetic field, and DC coil Ldc provides bias magnetic field, and bias magnetic field is added to alternating current magnetic field to form the total magnetic of alternation
, magnetostrictive member flexible amplitude-controllable under the action of alternation total magnetic field, to drive pot body ontology 100 to be vibrated.
Specifically, certain metamorphosis can occur under the action of alternating magnetic field for magnetostrictive member, as size can be sent out
Raw elongation is shortened, and when removing alternating magnetic field, size is restored to original state again, so being imitated according to magnetostriction
It answers, when magnetostrictive member senses the magnetic field of alternation, high-frequency vibration can be generated, and pass through pot body ontology 100 for conduct vibrations
Into culinary art material, so that cooking apparatus can effectively facilitate materials abstraction, emulsification, water suction in the process of cooking, so that object
The nutritional ingredient of material obtains depth extraction, promotes cooking quality, promotes mouthfeel.And the side of magnetostrictive effect and alternating magnetic field
It is related with frequency to, amplitude, and specific magnetostrictive member is generally only that elongation effect is significant, and pinch effect is unobvious, or
Person's pinch effect is significant, and elongation effect is unobvious, inventors have found that by being superimposed a DC component in alternating current magnetic field, it can
To effectively reduce or remove the changes of magnetic field direction in alternating current magnetic field, to change the direction of alternating magnetic field.Therefore, in the present invention
Embodiment in, by the way that two coils, an AC coil Lac and a DC coil Ldc is arranged, and pass through excitation power supply
320 provide excitation energy so that AC coil Lac and DC coil Ldc provide different magnetic to magnetostriction exciting unit 310
, wherein AC coil Lac provides alternating current magnetic field, and DC coil Ldc provides bias magnetic field, and bias magnetic field is added to AC magnetism
So as to there is a biggish DC component in alternation total magnetic field, so that the direction-agile of alternation total magnetic field, so that
Magnetostrictive member flexible amplitude-controllable under the action of alternation total magnetic field, is effectively improved culinary art effect.
One embodiment according to the present invention, with reference to Fig. 4, AC coil Lac is arranged concentrically with DC coil Ldc.
One embodiment according to the present invention meets between the intensity of bias magnetic field and the intensity peak of alternating current magnetic field and closes
System: H2pp*3/4 >=H1 > H2pp*1/4, wherein H1 is the intensity of bias magnetic field, and H2pp is the intensity peak of alternating current magnetic field, is folded
The waveform of alternation total magnetic field after adding is as shown in Figure 5.From fig. 5, it can be seen that under the action of bias magnetic field (i.e. DC component),
The negative sense amplitude of alternating current magnetic field reduces, so that the direction of alternating magnetic field changes.
One embodiment according to the present invention, referring to Fig. 3 a and Fig. 3 b, excitation power supply 320 export respectively ac-excited source and
DC source of energization, magnetostriction exciting unit 310 further include the first control circuit and correspondence AC line of corresponding AC coil Lac
Enclose the second control circuit of Ldc, wherein ac-excited source is AC coil Lac power supply, and first control circuit controls AC coil
Lac carries out resonance, and DC source of energization is DC coil Ldc power supply, and the electric current of second control circuit control DC coil Ldc changes
Become.
One embodiment according to the present invention, referring to Fig. 3 a, first control circuit include the first R-T tube Q1 (such as
IGBT) it is connected with one end after AC coil Lac parallel connection with ac-excited source with resonant capacitance C, resonant capacitance C, resonant capacitance C
The other end after in parallel with AC coil Lac is connected with the collector of the first R-T tube Q1, the first R-T tube Q1's
Emitter is grounded GND.
Specifically, with reference to Fig. 3 a, when excitation power supply 320 exports ac-excited source, excitation power supply 320 may include rectification
Unit 321 and filter unit 322, wherein rectification unit 321 can be rectifier bridge, and filter unit 322 may include the first absorption
Capacitor C1, the first filter inductance L1 (or choking-winding) and the second Absorption Capacitance C2.Wherein, two input terminals of rectifier bridge with
The feeder ear of electric main AC is corresponding to be connected, and the first output end of rectifier bridge is grounded GND, the second output terminal of rectifier bridge respectively with
One end of first Absorption Capacitance C1 is connected with one end of the first filter inductance L1, and the other end of the first Absorption Capacitance C1 is grounded GND,
The other end of first filter inductance L1 is connected with one end of the second Absorption Capacitance C2, AC coil Lac and resonant capacitance C respectively,
The other end of second Absorption Capacitance C2 is grounded GND.
When cooking pot tool work, electric main AC is rectified into the direct current of pulsation by rectification unit 321, then by the
It is defeated after the π type filter unit 322 that one Absorption Capacitance C1, the first filter inductance L1 and the second Absorption Capacitance C2 are constituted is filtered
Constant direct current out provides excitation energy to magnetostriction exciting unit 310, meanwhile, 330 output phase of drive control unit is answered
PPG (Programme Pulse Generator, programmable pulse generator) signal or PWM (Pulse Width
Modulation, pulse width modulation) signal to the first R-T tube Q1 control terminal, to control the first R-T tube Q1
Turn-on and turn-off, so that resonance occurs for AC coil Lac and resonant capacitance C, to generate alternating current magnetic field.
One embodiment according to the present invention, with reference to Fig. 3 b, second control circuit includes protection diode D1, two poles of rectification
Pipe D2, storage capacitor C4 and second switch Q2 (such as IGBT), wherein the anode of protection diode D1 is with DC coil Ldc's
One end is connected to DC source of energization after being connected, the other end of DC coil Ldc respectively with the collector of second switch Q2 and whole
Flow diode D2 anode be connected, the cathode of rectifier diode D2 be connected with the cathode of protection diode D1 afterwards and storage capacitor C4
One end be connected, the other end of storage capacitor C4 is grounded GND, and the emitter of second switch Q2 is grounded GND.
Specifically, with reference to Fig. 3 b, when excitation power supply 320 exports DC source of energization, excitation power supply 320 may include rectification
Unit 321 and filter unit 322, wherein rectification unit 321 can be rectifier bridge, and filter unit 322 may include that third absorbs
Capacitor C3.Wherein, two input terminals of rectifier bridge are corresponding with the feeder ear of electric main AC is connected, the first output end of rectifier bridge
Be grounded GND, the second output terminal of rectifier bridge respectively with one end of third Absorption Capacitance C3, DC coil Ldc and protection diode
D1 is connected, and the other end of third Absorption Capacitance C3 is grounded GND.
When cooking pot tool work, electric main AC is rectified into the direct current of pulsation by rectification unit 321, then by the
After three Absorption Capacitance C3 carry out low frequency filtering processing, excitation energy is provided to magnetostriction exciting unit 310, meanwhile, driving control
Unit 330 processed exports the control terminal of corresponding PPG signal or pwm signal to second switch Q2, to control second switch
Q2 turn-on and turn-off, so that DC coil Ldc carries out charge and discharge, to be generated by the electric current for changing DC coil Ldc partially
Set magnetic field.
Since DC coil Ldc and AC coil Lac is arranged on cooking pot tool simultaneously, so when bias magnetic field is superimposed to
When alternating current magnetic field, so that having a biggish DC component in the alternation total magnetic field formed, so that the side of alternation total magnetic field
To can be changed, the amplitude-controllable so that magnetostrictive member stretches under the action of alternation total magnetic field is effectively improved culinary art effect.
It should be noted that Fig. 3 a and Fig. 3 b are that the two is separately illustrated with drawing for ease of description, in practical application
In, the partial circuit in two circuits can be merged, for example, rectification unit 321 uses the same rectification unit, filtering
Unit 322 can use identical filter unit, can also can be used using different filter units in order to save cost
Identical filter unit can specifically select according to the actual situation.
In addition, it is necessary to which explanation, magnetostrictive effect are related with the direction of alternating magnetic field, amplitude and frequency, wherein logical
Control unit of overdriving 330 exports the driving signal of different duty to the first R-T tube Q1, can effectively change alternation
The frequency in magnetic field to change the vibration frequency of magnetostrictive member, and then changes culinary art effect；Alternatively, passing through drive control list
Member 330 exports the driving signal of different duty to second switch Q2, to change the electric current of excitation coil L, to change inclined
The intensity in magnetic field is set, and then changes the direction of alternating magnetic field, changes culinary art effect.In some embodiments of the invention, it drives
Control unit 330, to second switch Q2, can make the electric current of excitation coil L by the driving signal of output different duty
In continuous state, on-off state or critical continuous mode state, i.e. magnetostriction exciting unit 310 shown in Fig. 3 b is with continuous electricity
Stream mode, discontinuous current mode or critical continuous mode current-mode work.Specifically, with reference to Fig. 6 a, magnetostriction excitation is single
Member 310 is worked with continuous current mode；With reference to Fig. 6 b, magnetostriction exciting unit 310 carries out work with discontinuous current mode
Make；With reference to Fig. 6 c, magnetostriction exciting unit 310 is worked with critical continuous mode current-mode.It can from Fig. 6 a- Fig. 6 c
Out, when magnetostriction exciting unit 310 is worked with continuous current mode, the amplitude of the bias magnetic field of acquisition will be maximum,
When magnetostriction exciting unit 310 is worked with discontinuous current mode, the amplitude of the bias magnetic field of acquisition will be minimum, still
Regardless of bias magnetic field, and being used cooperatively by Three models under mode, can be obtained, can obtain wider strong
The bias magnetic field of degree range such as meets H2pp*3/4 >=H1 > H2pp*1/4 to meet the needs of different alternating magnetic fields.
In some embodiments of the invention, cooking apparatus is heated using IH heating method.Since IH heating is (such as electricity
Magnetic induction heating) bottom that does not need pot body ontology is in contact with coil panel, it is possible to effectively avoid during vibration
The effect that the bottom of pot body ontology and heating element cause heat to be transmitted due to poor contact is bad.
In some embodiments of the invention, cooking apparatus further includes foot pad (such as silica gel foot pad), to avoid pot body sheet
The vibration and noise of body is transmitted downwards, to reduce the influence to platform (such as desk, hearth).
The mangneto driving source of cooking apparatus according to an embodiment of the present invention gives magnetostriction exciting unit by excitation power supply
Excitation energy is provided so that AC coil and DC coil provide different electromagnetism, wherein AC coil provides alternating current magnetic field, directly
Streamline circle provides bias magnetic field, and bias magnetic field is added to alternating current magnetic field to form alternation total magnetic field, and magnetostrictive member is total in alternation
Stretch amplitude-controllable under the action of magnetic field, to drive pot body ontology to be vibrated, so as to promote material during the cooking process
Extraction, emulsification, water suction promote mouthfeel so that the nutritional ingredient of material obtains depth extraction, and due to by AC coil and
Two coils of DC coil provide magnetic field, therefore can effectively change the direction of alternating magnetic field, so that magnetostrictive member
Flexible amplitude-controllable, so that the vibration of pot body ontology is controllable, culinary art effect is controllable, and compared to using iron plate vibration side
Formula, without the mechanical fatigue of vibrating reed, and without providing an oscillation space.
In another aspect of the invention, the invention proposes a kind of cooking apparatus.According to an embodiment of the invention, this is cooked
Utensil of preparing food may include pot body ontology, magnetostrictive member and above-mentioned mangneto driving source.Inventors have found that the cooking apparatus passes through
Using above-mentioned mangneto driving source, alternating magnetic field can be provided to the magnetostrictive member being arranged on cooking apparatus, so that mangneto
Deformation occurs under the action of alternating magnetic field for extensible member, to drive pot body ontology to be vibrated, so as to during the cooking process
Promote materials abstraction, emulsification, water suction, so that the nutritional ingredient of material obtains depth extraction, promotes mouthfeel, and hand over due to passing through
Two coils of streamline circle and DC coil provide magnetic field, therefore can effectively change the direction of alternating magnetic field, so that mangneto
The flexible amplitude-controllable of extensible member, so that the vibration of pot body ontology is controllable, culinary art effect is controllable, and compared to using iron
Piece mode of vibration, without the mechanical fatigue of vibrating reed, and without providing an oscillation space.
According to one embodiment of present invention, cooking apparatus can be electric cooker.It is cooked as a result, using the electric cooker
When, deformation occurs under the action of alternating magnetic field, the pot body ontology of electric cooker can be driven to be vibrated, so as to cook
Promote materials abstraction, emulsification, water suction in the process, so that the nutritional ingredient of material obtains depth extraction, promotes mouthfeel.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (15)
1. a kind of mangneto driving source of cooking apparatus, which is characterized in that the cooking apparatus includes pot body ontology and magnetostriction
Part, the mangneto driving source include:
Magnetostriction exciting unit, the magnetostriction exciting unit includes excitation coil, and the excitation coil includes AC line
Circle and DC coil；
Excitation power supply, the excitation power supply are connected with the magnetostriction exciting unit, and the excitation power supply is by giving the magnetic
Flexible exciting unit is caused to provide excitation energy so that the AC coil and the DC coil provide different magnetic field, wherein
The AC coil provides alternating current magnetic field, and the DC coil provides bias magnetic field, and the bias magnetic field is added to the exchange
Magnetic field is to form alternation total magnetic field, the magnetostrictive member flexible amplitude-controllable under the action of the alternation total magnetic field, with band
The pot body ontology is moved to be vibrated.
2. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the magnetostrictive member is stretched for mangneto
Compression material layer, the magneto strictive material are arranged at least part surface of the pot body ontology.
3. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the AC coil and the direct current
Coil is arranged concentrically.
4. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the intensity of the bias magnetic field and institute
It states and meets relationship between the intensity peak of alternating current magnetic field: H2pp*3/4 >=H1 > H2pp*1/4, wherein H1 is the bias magnetic field
Intensity, H2pp be the alternating current magnetic field intensity peak.
5. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the excitation power supply exports friendship respectively
It flows driving source and DC source of energization, the magnetostriction exciting unit further includes the first control circuit of the corresponding AC coil
With the second control circuit of the correspondence DC coil, wherein the ac-excited source is AC coil power supply, described the
One control circuit controls the AC coil and carries out resonance, and the DC source of energization is that the DC coil is powered, and described second
Control circuit controls the curent change of the DC coil.
6. the mangneto driving source of cooking apparatus as claimed in claim 5, which is characterized in that the first control circuit includes the
One R-T tube and resonant capacitance, one end and ac-excited source phase after the resonant capacitance is in parallel with the AC coil
Even, the other end after the resonant capacitance is in parallel with the AC coil is connected with the collector of first R-T tube,
The emitter of first R-T tube is grounded.
7. the mangneto driving source of cooking apparatus as claimed in claim 5, which is characterized in that the second control circuit includes protecting
Protect diode, rectifier diode, storage capacitor and second switch, wherein the anode of the protection diode and the direct current
One end of coil is connected to the DC source of energization after being connected, the other end of the DC coil respectively with the second switch
Collector be connected with the anode of the rectifier diode, the cathode of the cathode of the rectifier diode and the protection diode
It is connected after being connected with one end of the storage capacitor, the other end ground connection of the storage capacitor, the transmitting of the second switch
Pole ground connection.
8. such as the mangneto driving source of cooking apparatus of any of claims 1-7, which is characterized in that the magnetostriction
Part is made of Tb0.3Dy0.7Fe1.95 alloy.
9. the mangneto driving source of cooking apparatus as claimed in claim 2, which is characterized in that the thickness of the magneto strictive material
Degree is 10 μm~1mm.
10. the mangneto driving source of cooking apparatus as claimed in claim 2, which is characterized in that the pot body ontology be metal pan,
Ceramic pan, casserole or olla.
11. the mangneto driving source of cooking apparatus as claimed in claim 10, which is characterized in that the pot body ontology is metal
Pot, the magneto strictive material are arranged at least part of the pot body body outer surface.
12. the mangneto driving source of cooking apparatus as claimed in claim 10, which is characterized in that the pot body ontology is ceramics
Pot, casserole or olla, the magneto strictive material are arranged in the outer surface of pot body ontology or at least part of inner surface.
13. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the cooking apparatus is added using IH
Hot mode is heated.
14. the mangneto driving source of cooking apparatus as described in claim 1, which is characterized in that the cooking apparatus further includes foot
Pad.
15. a kind of cooking apparatus, which is characterized in that the mangneto including the cooking apparatus as described in any one of claim 1-14
Driving source.
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| CN201710876948.7A CN109549458B (en) | 2017-09-25 | 2017-09-25 | Cooking utensil and magnetic excitation source thereof |
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| CN201710876948.7A CN109549458B (en) | 2017-09-25 | 2017-09-25 | Cooking utensil and magnetic excitation source thereof |
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| CN115029617A (en) * | 2022-06-29 | 2022-09-09 | 武汉苏泊尔炊具有限公司 | Magnetic conductive material, preparation method thereof and cooker comprising magnetic conductive material |
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