CN106073481A - A kind of pressure type electric rice cooker and control method thereof - Google Patents
A kind of pressure type electric rice cooker and control method thereof Download PDFInfo
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- CN106073481A CN106073481A CN201610727509.5A CN201610727509A CN106073481A CN 106073481 A CN106073481 A CN 106073481A CN 201610727509 A CN201610727509 A CN 201610727509A CN 106073481 A CN106073481 A CN 106073481A
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- 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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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Abstract
The invention discloses a kind of pressure type electric rice cooker, upper cover including buckle closure cooker body, be provided with the temperature controller of pot bottom temperature in gathering in described cooker body, described upper cover be provided with the pressure valve of closure exhaust passage and play an execution unit for pressure release, described execution unit away from or close to above pressure valve.The control method of a kind of pressure type electric rice cooker, comprises the following steps: electric cooker plays pressure, pressure valve stress balance, the boiling of rice water, execution unit away from pressure valve.The present invention passes through pressure valve, the position relationship of execution unit, the type of drive of pressure valve realizes a pressure release of electric rice cooker body, and by pressure valve deadweight, the magnetic absorption size of execution unit, the size of exhaust passage air pressure, pressure valve is converted to open state by closed state, without arranging high-precision sensor to the pressure state detecting in electric cooker, degree height simple and reliable for structure, and decreasing unnecessary sensor effective control program cost, it is ensured that the heating of whole pot rice and gelatinizing are uniform.
Description
Technical field
The present invention relates to culinary cuisine fixture fields, be specifically related to a kind of pressure type electric rice cooker and pressure control cooking method thereof.
Background technology
In the kitchen of modernization, the application of electric cooker is more and more extensive.Conventional culinary maneuver, as steamed, boil, stew, simmering, boils in a covered pot over a slow fire
Deng, all can realize with electric cooker, and owing to electric cooker need not the monitoring of timing, easy to operate, reliable and stable etc. excellent
Point, by people high praise with like.
The principle of pressure type electric rice cooker is very simple, because the boiling point of water is by effects of air pressure, air pressure is the highest, and boiling point is the highest.?
On high mountain, plateau, air pressure, less than 1 atmospheric pressure, just can seethe with excitement less than 100 DEG C of water, and egg boils not yet done with common pan.?
When air pressure is more than 1 atmospheric pressure, water just can will seethe with excitement when higher than 100 DEG C.Pressure type electric rice cooker utilizes above-mentioned principle exactly
Make.Electric cooker is fairly closely closed water, and the steam that water is produced by thermal evaporation can not be diffused in air, only
Can be retained in electric cooker, just make the air pressure within electric cooker be higher than 1 atmospheric pressure, and locate and in controlled safety range, also
Making water just seethe with excitement when higher than 100 DEG C, be formed for the environment of High Temperature High Pressure inside such electric cooker, band processing food materials are easy for
Quickly cook, and quite crisp rotten.
At present, pressure type electric rice cooker mainly divides two kinds, and a kind of is that the pressure valve of electric cooker is not the most during whole cooking
Can action, this electric cooker otherwise whole cook during pressure valve be constantly in sealing state rice not boiling and exhaust, or
It is to produce micro-boiling, electric rice cooker cooking in the case of two kinds at boiling stage by the dynamic equilibrium gas leakage of steam pressure with pressure valve
Rice all can not get sufficiently seething with excitement, thus each position gelatinizing of rice is uneven, and whole pot rice mouthfeel is bad；
Another kind of electric cooker is in order to solve the problems referred to above, in boiling stage of cooking is sensed by the sensing device arranged in pot
Temperature or pressure state, drive the open rice promoting electric rice cooker cooking of pressure valve when pressure rises to a certain special parameter
Meal produces bumping tumbling effect, and this method can promote the whole uniform gelatinizing of pot rice, promotes rice mouthfeel uniformity；But this
Kind of electric cooker is required for arranging the high pressure of precision comparison or temperature sensor to control the movement time of pressure valve, system control
System complexity, relatively costly.
Summary of the invention
The present invention solves that problem that prior art exists proposes, its objective is to provide a kind of pressure type electric rice cooker and control
Method processed.
The technical scheme is that a kind of pressure type electric rice cooker, including cooker body, interior pot and upper cover, described interior pot is placed
In cooker body, upper cover is coated on above cooker body and interior pot and is fastened in cooker body, is provided with temperature controller, described upper cover bottom cooker body
In be provided with closure exhaust passage pressure valve, described upper cover is provided with power source and the driving machine corresponding with power source
Structure, described drive mechanism has been provided with the execution unit of pressure release, described execution unit away from or close to above pressure valve.
The execution unit of described pressure pressure release and pressure valve magnetic absorption, described pressure valve is being in closure exhaust passage
Location status time gravity more than magnetic force.
Described pressure valve is ferromagnetics material or the magnetic material magnetized, and described execution unit is corresponding with pressure valve
The magnetic material magnetized or ferromagnetics material.
Described ferromagnetics material is the one in ferrum, cobalt, nickel, the described magnetic material that magnetized be ferrite, neodymium iron boron,
Alloy material that is a kind of or that form for above-mentioned material in aluminum cobalt nickel, samarium cobalt magnet.
Described drive mechanism is the one in leverage, linkage, gear mechanism, pinion and rack or above-mentioned
The combined mechanism of mechanism.
Described power source be adapt with drive mechanism electric magnet, electromagnetic valve, one in motor.
The control method of a kind of pressure type electric rice cooker, comprises the following steps:
() electric cooker plays pressure
During electric cooker work, execution unit is placed in above pressure valve by power source, drive mechanism, and pressure valve gravity G is more than performing
Magnetic force F between parts, pressure valve1, exhaust passage is blocked by pressure valve；
() pressure valve stress balance
Electric cooker performs heating schedule, and along with temperature rises, the pressure in interior pot is stepped up, when reaching P1Time, temperature controller is adopted
Integrate cooking bottom temperature as T1, the stress of pressure valve reaches balance,
I.e. G ≈ FPressure+F1, wherein G is pressure valve gravity, F1It is the magnetic force under H, F for pressure valve, execution unit distancePressureFor interior pot
The pressure differential of air pressure and the ambient atmosphere directed force F to pressure valvePressure=P1× S, S are aperture, exhaust passage；
() rice water seethes with excitement
Electric cooker continue heating, pot in pressure continue rise, the stress balance state of pressure valve is broken, pressure valve rapidly away from
Exhaust passage is also adsorbed mutually with execution unit,
I.e. F2＞ G, wherein F2It is the magnetic force under h for pressure valve, execution unit distance,
Exhaust passage is opened and is made the pressure release in inner pan of electric cooker promote meter water to produce acutely boiling；
() execution unit is away from pressure valve
Simultaneously, interior pot bottom has an obvious temperature and declines Δ T in step () boiling, as the Δ t that detection said temperature declines
After time, power source, drive mechanism drive execution unit away from pressure valve, pressure valve row of closure again under self gravitation effect
Gas passage.
In being judged by the intensification required time of step () in pot rice amount number, thus repeat step () ~ step
() is circulated 1 ~ 10 time.
Described step () also includes the decision process that execution unit moves, i.e. after interior pot temperature arrives assigned temperature,
Execution unit is placed in above pressure valve by power source, drive mechanism.
Described assigned temperature is 100-Δ T2, described Δ T2Being 1 ~ 30 DEG C, Δ T described in step () is 1 ~ 5 DEG C,
Δ t is 1 ~ 10s.
The present invention passes through pressure valve, the position relationship of execution unit, and the type of drive of pressure valve realizes electric rice cooker body
Play pressure release, and by pressure valve deadweight, the magnetic absorption size of execution unit, the size of exhaust passage air pressure, pressure valve
Open state is converted to, it is not necessary to high-precision sensor is set to the pressure state detecting in electric cooker, structure by closed state
Simple and reliable degree height, and decrease unnecessary sensor effective control program cost, it is ensured that the heating of whole pot rice and paste
Change uniformly.
Accompanying drawing explanation
Fig. 1 is the execution unit of the present invention axonometric drawing away from pressure valve；
Fig. 2 is the execution unit of the present invention sectional view away from pressure valve；
Fig. 3 is the execution unit of the present invention axonometric drawing close to pressure valve；
Fig. 4 is that execution unit of the present invention is close to pressure valve and the sectional view of pressure valve closure state；
Fig. 5 is that execution unit of the present invention is close to pressure valve and the sectional view of pressure valve open mode；
Fig. 6 is the force diagram of pressure valve of the present invention；
Fig. 7 is cooking method figure of the present invention；
Wherein:
1 upper cover 2 exhaust passage
3 pressure valve 4 execution units
5 power source 6 drive mechanisms.
Detailed description of the invention
Hereinafter, referring to the drawings and embodiment the present invention is described in detail:
As shown in Fig. 1 ~ 7, a kind of pressure type electric rice cooker, including cooker body, interior pot and upper cover 1, described interior pot is placed in cooker body, on
Lid 1 is coated on above cooker body and interior pot and is fastened in cooker body, is provided with temperature controller, is provided with in described upper cover 1 bottom cooker body
The pressure valve 3 of closure exhaust passage 2, is provided with power source 5 and the drive mechanism corresponding with power source 5 in described upper cover 1
6, described drive mechanism 6 has been provided with the execution unit 4 of pressure release, described execution unit 4 away from or close in pressure valve 3
Side.
The execution unit 4 of described pressure release and pressure valve 3 magnetic absorption, described pressure valve 3 is led to being in closure aerofluxus
During the location status in road 2, gravity is more than magnetic force.
Execution unit 4 is positioned at above pressure valve 3, and along with the pressure in exhaust passage 2 is gradually increased, pressure valve 3 is in aerofluxus
Under the comprehensive function of the magnetic force between pressure and execution unit 4, pressure valve 3 in passage 2, pressure valve 3 overcomes gravity to be held
Row parts 4 adsorb, and owing to magnetic force size and distance are inverse ratio, under adsorbed state between execution unit 4, pressure valve 3
Magnetic force is more than gravity, so that exhaust passage 2 is opened, completes pressure leak process.
Execution unit 4 away from pressure valve 3 above so that pressure valve 3 is from new closure exhaust passage 2, so that electric cooker
Interior pressure, temperature rise.
Described pressure valve 3 is ferromagnetics material or the magnetic material magnetized, and described execution unit 4 is and pressure valve 3 phase
The corresponding magnetic material magnetized or ferromagnetics material.
Described ferromagnetics material is a kind of in ferrum, cobalt, nickel or the alloy material for above-mentioned material composition, described fills
The magnetic material of magnetic is the one in ferrite, neodymium iron boron, aluminum cobalt nickel, samarium cobalt magnet.
Described execution unit 4 is driven by drive mechanism 6 and moves back and forth, and described drive mechanism 6 is driven by power source 5, described
Drive mechanism 6 is the combination of a kind of or said mechanism in leverage, linkage, gear mechanism, pinion and rack
Mechanism.
Described power source 5 be adapt with drive mechanism 6 electric magnet, electromagnetic valve, one in motor.
Apply the control method of above-mentioned a kind of pressure type electric rice cooker, comprise the following steps:
() electric cooker plays pressure
During electric cooker work, execution unit 4 is placed in above pressure valve 3 by power source 5, drive mechanism 6, and pressure valve 3 gravity G is more than
Magnetic force F between execution unit 4, pressure valve 31, exhaust passage 2 is blocked by pressure valve 3；
() pressure valve stress balance
Electric cooker performs heating schedule, and along with temperature rises, the pressure in interior pot is stepped up, when reaching P1Time, temperature controller is adopted
Integrate cooking bottom temperature as T1, the stress of pressure valve 3 reaches balance,
I.e. G ≈ FPressure+F1, wherein G is pressure valve 3 gravity, F1For pressure valve 3, the execution unit 4 magnetic force under for H, FPressureFor interior
The pressure differential of pan gas pressure and the ambient atmosphere directed force F to pressure valve 3Pressure=P1× S, S are aperture, exhaust passage 2；
() rice water seethes with excitement
Electric cooker continues heating, and in pot, pressure continues to rise, and the stress balance state of pressure valve 3 is broken, and pressure valve 3 is the most remote
Adsorb from exhaust passage 2 and with execution unit 4 phase,
I.e. F2＞ G, wherein F2For pressure valve 3, the execution unit 4 magnetic force under for h,
Exhaust passage 2 is opened and is made the pressure release in inner pan of electric cooker promote meter water to produce acutely boiling；
() execution unit is away from pressure valve
Simultaneously, interior pot bottom has an obvious temperature and declines Δ T in step () boiling, as the Δ t that detection said temperature declines
After time, power source 5, drive mechanism 6 drive execution unit 4 away from pressure valve 3, pressure valve 3 under self gravitation effect again
Closure exhaust passage 2.
Collecting temperature changes: during pressure release, the rice coolant-temperature gage in interior pot can decline suddenly, is now arranged on the temperature of interior pot bottom
Control device (1 ~ 5s) can detect that temperature judges that pressure has been released when declining suddenly (1 ~ 5 DEG C) within the comparatively short time
Put, and send a signal to MCU；
MCU accept above-mentioned rear timer control after 1 ~ 10s, power source, drive mechanism drive execution unit away from pressure valve,
Pressure valve blocks exhaust passage under self gravitation effect again
In being judged by the intensification required time of step () in pot rice amount number, thus repeat step () ~ step () and follow
Ring 1 ~ 10 time.
As it is shown in fig. 7, the judgement of rice amount is from T by interior pot cooking bottom temperature in interior pot2Rise to T3The required time judges
, more short rice amount of above-mentioned heating-up time is the least, and the longest rice amount of above-mentioned heating-up time is the most.
T in the present invention2Temperature is 35 ~ 70 DEG C, T3Temperature is 60 ~ 95 DEG C.
Described step () also includes the decision process that execution unit 4 moves, i.e. arrives assigned temperature when interior pot temperature
After, execution unit 4 is placed in above pressure valve 3 by power source 5, drive mechanism 6.
Described assigned temperature is 100-Δ T2, described Δ T2It it is 1 ~ 30 DEG C.
So that power source 5, drive mechanism 6 to perform movement time in cooking cycle of cooking short, overall power is low, unit's device
The part life-span is longer.
Δ T described in step () is 1 ~ 5 DEG C, and Δ t is 1 ~ 10s.
P in the present invention1=P0-5 ~ 10kPa, wherein P0Rated pressure for design.
The present invention passes through pressure valve, the position relationship of execution unit, and the type of drive of pressure valve realizes electric rice cooker body
Play pressure release, and by pressure valve deadweight, the magnetic absorption size of execution unit, the size of exhaust passage air pressure, pressure valve
Open state is converted to, it is not necessary to high-precision sensor is set to the pressure state detecting in electric cooker, structure by closed state
Simple and reliable degree height, and decrease unnecessary sensor effective control program cost, it is ensured that the heating of whole pot rice and paste
Change uniformly.
Claims (10)
1. a pressure type electric rice cooker, including cooker body, interior pot and upper cover (1), described interior pot is placed in cooker body, and upper cover (1) wraps
It is overlying on above cooker body and interior pot and is fastened in cooker body, bottom cooker body, being provided with temperature controller, it is characterised in that: described upper cover (1)
In be provided with closure exhaust passage (2) pressure valve (3), described upper cover (1) is provided with power source (5) and and power source
(5) corresponding drive mechanism (6), described drive mechanism (6) has been provided with the execution unit (4) of pressure release, described execution
Parts (4) away from or close to pressure valve (3) top.
A kind of pressure type electric rice cooker the most according to claim 1, it is characterised in that: the execution unit of described pressure pressure release
(4) with pressure valve (3) magnetic absorption, described pressure valve (3) gravity when being in the location status of closure exhaust passage (2) is more than
Magnetic force.
A kind of pressure type electric rice cooker the most according to claim 1, it is characterised in that: described pressure valve (3) is ferromagnetics material
Material or the magnetic material magnetized, described execution unit (4) is the magnetic material that magnetized corresponding with pressure valve (3) or ferrum
Magnetic material.
A kind of pressure type electric rice cooker the most according to claim 3, it is characterised in that: described ferromagnetics material is ferrum, cobalt, nickel
In a kind of or for above-mentioned material composition alloy material, the described magnetic material magnetized is ferrite, neodymium iron boron, aluminum cobalt
One in nickel, samarium cobalt magnet.
A kind of pressure type electric rice cooker the most according to claim 1, it is characterised in that: described drive mechanism (6) is Lever machine
The combined mechanism of a kind of or said mechanism in structure, linkage, gear mechanism, pinion and rack.
A kind of pressure type electric rice cooker the most according to claim 5, it is characterised in that: described power source (5) is and the machine of driving
One in electric magnet that structure (6) adapts, electromagnetic valve, motor.
7. the control method of a pressure type electric rice cooker, it is characterised in that: comprise the following steps:
() electric cooker plays pressure
During electric cooker work, execution unit (4) is placed in pressure valve (3) top, pressure valve by power source (5), drive mechanism (6)
(3) gravity G is more than the magnetic force F between execution unit (4), pressure valve (3)1, exhaust passage (2) are blocked by pressure valve (3)；
() pressure valve stress balance
Electric cooker performs heating schedule, and along with temperature rises, the pressure in interior pot is stepped up, when reaching P1Time, temperature controller collection
Cooking bottom temperature is T1, the stress of pressure valve (3) reaches balance,
I.e. G ≈ FPressure+F1, wherein G is pressure valve (3) gravity, F1It is the magnetic force under H for pressure valve (3), execution unit (4) distance,
FPressureThe directed force F to pressure valve (3) of the pressure difference with ambient atmosphere is pressed for interior pan gasPressure=P1× S, S are exhaust passage (2) aperture
Area；
() rice water seethes with excitement
Electric cooker continues heating, and in pot, pressure continues to rise, and the stress balance state of pressure valve (3) is broken, and pressure valve (3) is fast
Speed is adsorbed mutually away from exhaust passage (2) and with execution unit (4),
I.e. F2＞ G, wherein F2It is the magnetic force under h for pressure valve (3), execution unit (4) distance,
Exhaust passage (2) is opened and is made the pressure release in inner pan of electric cooker promote meter water to produce acutely boiling；
() execution unit is away from pressure valve
Simultaneously, interior pot bottom has an obvious temperature and declines Δ T in step () boiling, as the Δ t that detection said temperature declines
After time, power source (5), drive mechanism (6) drive execution unit (4) away from pressure valve (3), and pressure valve (3) is at self gravitation
Exhaust passage (2) is again blocked under effect.
A kind of pressure type electric rice cooker control method the most according to claim 7, it is characterised in that: by the liter of step ()
Temperature required time judge in pot rice amount number, thus repeat step () ~ step () and circulate 1 ~ 10 time.
A kind of pressure type electric rice cooker control method the most according to claim 7, it is characterised in that: in described step () also
Including the decision process of execution unit (4) movement, i.e. after interior pot temperature arrives assigned temperature, power source (5), drive mechanism
(6) execution unit (4) is placed in pressure valve (3) top.
A kind of pressure type electric rice cooker control method the most according to claim 9, it is characterised in that: described assigned temperature
For 100-Δ T2, described Δ T2Being 1 ~ 30 DEG C, Δ T described in step () is 1 ~ 5 DEG C, and Δ t is 1 ~ 10s.
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| CN201610727509.5A CN106073481B (en) | 2016-08-26 | 2016-08-26 | A kind of control method of pressure type electric rice cooker |
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| JP2018134332A (en) * | 2017-02-23 | 2018-08-30 | パナソニックＩｐマネジメント株式会社 | Pressure type rice cooker |
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Address after: Room 01-04, 1st floor, No.2 Lane 60, Naxian Road, Pudong New Area pilot Free Trade Zone, Shanghai 201203 Patentee after: Chunmi Technology (Shanghai) Co.,Ltd. Patentee after: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. Address before: 201203 Shanghai city Pudong New Area fanchun Road No. 400 Building 1 room 301-182 Patentee before: SHANGHAI CHUNMI ELECTRONICS TECHNOLOGY Co.,Ltd. Patentee before: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. |
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