CN105615617B - Electric cooker and its control method - Google Patents
Electric cooker and its control method Download PDFInfo
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- CN105615617B CN105615617B CN201410629719.1A CN201410629719A CN105615617B CN 105615617 B CN105615617 B CN 105615617B CN 201410629719 A CN201410629719 A CN 201410629719A CN 105615617 B CN105615617 B CN 105615617B
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Abstract
The present invention provides a kind of electric cooker and its control methods.The control method of the electric cooker includes the following steps：In the water suction stage of electric cooker, the controller control centrifugal device work of electric cooker, drives the interior pot of electric cooker to rotate, the rice water in interior pot is made to generate centrifugal movement, meter Shui combines self gravitation effect and the effect with the resistance and viscous force of interior pot during centrifugal movement, forms turbulent flow.The control method of electric cooker provided by the invention, by controller control centrifugal device drive in pot rotated, realize including rice, water turbulent flow in pot, achieve the effect that rolling, stick together so as to eliminate the process mesogranule of cooking, caking phenomenon occur；Rotated in the water suction stage by pot in setting, promote the grain of rice fully absorb water, realize that whole pot rice is uniformly gelatinized so that the rice cooked it is in good taste.
Description
Technical field
The present invention relates to field of household appliances, more specifically, are related to a kind of control method of electric cooker and a kind of electric cooker.
Background technology
During being cooked with electric cooker, with the passage of soaking time and the rising of water temperature, the surface of the grain of rice starts
Gelatinization becomes sticky, and causes to be bonded together between the grain of rice and the grain of rice, caking phenomenon occurs.Since the heat-conductive characteristic of the grain of rice is far low
With can hindering the even heat of inner pan of electric cooker reception in the generation of the heat-conductive characteristic of water, therefore grain of rice caking to whole pot rice
It transmits, the rice group for influencing the efficiency that electric cooker is cooked, while being lumpd is wrapped in the intermediate grain of rice and is led as can not absorb water
It causes the grain of rice not to be gelatinized completely, influences the mouthfeel of rice.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, the purpose of one aspect of the invention is, a kind of control method of electric cooker is provided, can be heated in electric cooker
Pot is rotated in controlling in the process, prevents the grain of rice from luming.
The purpose of another aspect of the present invention is, provides a kind of electric meal for controlling and cooking using above-mentioned control method
It stews.
To achieve the above object, the embodiment of one aspect of the invention provides a kind of control method of electric cooker, including
Following steps：The electric cooker water suction the stage, by centrifugal device make the rice water in interior pot generate centrifugal movement, meter Shui from
Its own gravity and the effect with the resistance and viscous force of interior pot are combined in heart motion process, form turbulent flow.
The control method for the electric cooker that the above embodiment of the present invention provides heats the process cooked in electric cooker
In, the centrifugal device of electric cooker is operable, drives the interior pot of electric cooker to rotate, due to during cooking, being contained in interior pot
It is placed with water and rice, centrifugal device drives interior pot to be rotated, and interior pot drives the rice held in it, water to carry out centrifugal movement, meter Shui
In centrifugal movement due to by gravity so that meter Shui flows downward, while being made by the resistance of interior pot and viscous force
With the meter Shui in pot interior in this way forms turbulent flow, and the grain of rice can be effectively prevent to lump or break up the grain of rice of caking, solves existing
There is in technology the heat of pot in caused by the grain of rice lumps that can not equably be transmitted to whole pot rice, influence the effect that cook of electric cooker
Rate and the rice group lumpd be wrapped in the intermediate grain of rice can not absorb water cause the grain of rice not to be gelatinized completely, the poor taste etc. of rice
Problem so that the efficiency raising of cooking of electric cooker, and the rice cooked is soft, in good taste.
In addition, the control method of the electric cooker provided according to the above embodiment of the present invention also has following supplementary technology special
Sign：
According to one embodiment of present invention, centrifugal force and suffered viscous force suffered by the grain of rice of turbulent condition are in
Than being more than 5000.
According to one embodiment of present invention, the size F=4 π of centrifugal force suffered by the grain of rice of turbulent condition are in2mn2r；
The wherein described m is the quality of the grain of rice；N is the rotating speed of the interior pot；The r is distance of the grain of rice to interior pot center.
According to one embodiment of present invention, be in turbulent condition the grain of rice suffered by viscous force the coefficient of viscosity be 80 to
120。
According to one embodiment of present invention, the water temperature in the water suction stage is 40 to 60 degrees Celsius.
According to one embodiment of present invention, the centrifugal device control interior pot makees speed-changing rotation.
According to one embodiment of present invention, the rotating speed that the centrifugal device controls the interior pot is 10-400 revs/min.
According to one embodiment of present invention, the internal diameter of the interior pot is 160-240mm.
The embodiment of another aspect of the present invention provides a kind of electric cooker, using the electric cooker described in any of the above-described embodiment
Control method controlled, including：Pot lid；Cooker body, the pot lid lid close in the cooker body；Interior pot, the interior pot are placed
Into the cooker body；Centrifugal device, the centrifugal device are connected with the interior pot, and the interior pot rotation can be driven so that interior
Rice water in pot generates centrifugal movement, and meter Shui combines its own gravity and resistance and viscous force with interior pot during centrifugal movement
Effect, form turbulent flow, and the ratio of centrifugal force and suffered viscous force suffered by the grain of rice in turbulent condition is more than 5000；With
Controller, the controller can control the work of the centrifugal device.
In addition, also there is following additional technical feature according to the electric cooker that the above embodiment of the present invention provides：
According to one embodiment of present invention, the centrifugal device includes motor, and the motor is mounted in the pot lid；
Or the motor is mounted in the cooker body, and positioned at the lower section or side of the interior pot.
According to one embodiment of present invention, the motor is located at the lower section of the interior pot, the motor shaft of the motor with
The bottom wall of the interior pot is connected, and can drive the interior pot rotation.
According to one embodiment of present invention, the motor is located at the lower section of the interior pot, is equipped on the motor shaft
First gear is connected with transmission shaft on the bottom wall of the interior pot, is equipped on the transmission shaft and is meshed with the first gear
Second gear；Or the first belt pulley is installed on the motor shaft, and it is connected with transmission shaft on the bottom wall of the interior pot, it is described
Second belt pulley is installed, first belt pulley is connected with second belt pulley by belt on transmission shaft.
According to one embodiment of present invention, one of the transmission shaft and the bottom wall is equipped with circumferential limit protrusion,
Another is equipped with and the matched limiting groove of the circumferential limit protrusion.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of the electric cooker according to first embodiment of the invention；
Fig. 2 is the structural schematic diagram of the electric cooker according to second embodiment of the invention；
Fig. 3 is the structural schematic diagram of the electric cooker according to third embodiment of the invention；
Fig. 4 is the structural schematic diagram of interior pot and one embodiment of transmission shaft cooperation in electric cooker；
Fig. 5 is the structural schematic diagram of interior pot and second embodiment of transmission shaft cooperation in electric cooker.
Wherein, the correspondence in Fig. 1 to Fig. 5 between reference numeral and component names is：
1 electric cooker, 10 pot lids, 20 cooker bodies, pot in 30,300 bottom walls, 3000 limiting grooves,
400 motors, 4000 motor shafts, 401 transmission shafts, 4010 circumferential limit protrusions,
4020 first gears, 4021 second gears, 4,030 first belt pulleys, 4,031 second belt pulleys,
4032 belts
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
By using other, different from implementing in a manner of described here, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
A kind of control method of the electric cooker provided according to some embodiments of the invention, includes the following steps：The electricity meal
It stews in the water suction stage, so that the rice water in interior pot is generated centrifugal movement by centrifugal device, meter Shui is combined during centrifugal movement
Its own gravity and effect with the resistance and viscous force of interior pot form turbulent flow.When centrifugal device drives interior pot rotation, in interior pot
Meter Shui Hui influenced by its own gravity, the resistance of interior pot and viscous force, when centrifugal device drive in pot rotation centrifugal force
Do not break the balance of viscous force, then can form advection, though at this moment pot has rotated, the movement between the grain of rice and the grain of rice is unknown
It is aobvious；When the centrifugal force of pot rotation in centrifugal device drives breaks the influence of viscous force, then generate turbulent flow, at this moment the grain of rice and the grain of rice it
Between can carry out violent relative motion.
According to one embodiment of present invention, the size F=4 π of centrifugal force suffered by the grain of rice of turbulent condition are in2mn2R,
The wherein described m is the quality of the grain of rice, and n is the rotating speed of the centrifugal device, i.e., the rotating speed of interior pot；The r is the grain of rice to institute
State the distance at interior pot center.When meter Shui is rotated along with interior pot, when the speed of rotation reaches certain value, from interior pot centre distance
Farthest grain of rice region can enter turbulent condition (at this moment it is believed that rice water forms turbulent flow) at first under the influence of centrifugal force, later
It is exactly intermediate region, is then exactly center.
In general, the quality size of viscous force suffered by the grain of rice and the grain of rice itself, the gelatinization degree of meter Shui are related, it is believed that
Equal to the product of the two.The quality of the grain of rice itself is bigger, and the viscous force being subject to also can be bigger；The case where water immersion is crossed meter
Under, the gelatinization degree of meter Shui is higher, and the viscous force that the grain of rice is subject to also can be bigger, and the height of usual gelatinization degree can use the coefficient of viscosity
It shows, in the water suction stage, when water temperature is 40 to 60 degrees Celsius, the coefficient of viscosity of viscous force suffered by the grain of rice is 80 to 120.
During the centrifugal movement, the grain of rice is by centrifugal force, by the inside pot peripheric movement in center, and in the gravity
And roll under the action of the resistance and viscous force of interior pot side wall, so that meter Shui is sufficiently mixed.When control the grain of rice suffered by from
When the ratio of mental and physical efforts and suffered viscous force is more than 5000, this balance will have been broken.When meter Shui centrifugal force be more than certain value, this
When interior pot inner wall resistance can account for leading, what is mainly contended with centrifugal force is the resistance of interior pot inner wall, it is preferable that the centrifugation
Device controls the interior pot and makees speed-changing rotation, to change the relative velocity of pot in meter Shui Yu to which the dominant right to contend with is transferred to
Centrifugal force and viscous force.
The control method for the electric cooker that the above embodiment of the present invention provides heats the process cooked in electric cooker
In, the centrifugal device of electric cooker is operable, drives the interior pot of electric cooker to rotate, due to during cooking, being contained in interior pot
It is placed with water and rice, centrifugal device drives interior pot to be rotated, and interior pot drives the rice held in it, water to carry out centrifugal movement, meter Shui
In centrifugal movement due to by gravity so that meter Shui flows downward, and under the resistance and viscous force collective effect of interior pot,
Meter Shui in interior pot forms turbulent flow, and the grain of rice can be effectively prevent to lump or break up the grain of rice of caking, solve the prior art
It is middle caused by the grain of rice lumps in pot heat can not equably be transmitted to whole pot rice, influence the efficiency that cook of electric cooker and
The rice group lumpd be wrapped in the intermediate grain of rice can not absorb water lead to problems such as the grain of rice not to be gelatinized completely, the poor taste of rice,
So that the efficiency raising of cooking of electric cooker, and the rice cooked is soft, in good taste.
Preferably, it is in the water suction stage in the electric cooker, the water temperature in the interior pot is 40 DEG C~60 DEG C, the electricity meal
The controller of pot controls the centrifugal device and drives the interior pot rotation.
When electric cooker enters the water suction stage, controller can receive the signal that electric cooker enters the water suction stage, then control
Centrifugal device processed works, pot rotation in drive, so that the rice in interior pot is carried out centrifugal movement with water, formation turbulent flow makes interior pot
In rice come into full contact with water, promote the grain of rice fully absorb water.
In some embodiments of the invention, it is 10-400 revs/min that the centrifugal device, which drives the rotating speed of the interior pot,.
If rotating speed is too small, side is not achieved to form turbulent flow effect；It is excessive, then meter Shui can be made to be thrown out of or the development of resistance master of interior pot
It leads, is difficult to control.
In the preferred embodiment of the present invention, the internal diameter of the interior pot is 160-240mm.
Equally, the internal diameter of interior pot is bigger, and the centrifugal force of rice water centrifugal movement is bigger, and centrifugal movement is more violent, in order to more preferable
Rice water in ensureing in pot forms turbulent flow, prevents the generation of caking, the preferred 160-240mm of internal diameter of interior pot.
The embodiment of second aspect of the present invention provides a kind of electric cooker 1, as shown in Figure 1 to Figure 3, using above-described embodiment
The control method of the electric cooker is controlled, including：Pot lid 10, cooker body 20, interior pot 30, centrifugal device and controller (figure
In be not shown).
Wherein, the lid of the pot lid 10 closes in the cooker body 20, and the interior pot 30 is placed into the cooker body 20；
The centrifugal device is connected with the interior pot 30, and the interior pot 30 can be driven to rotate；
The controller can control the work of the centrifugal device.
The electric cooker that the above embodiment of the present invention provides, including pot lid, cooker body, interior pot, centrifugal device and controller, and
It is cooked using the control method control electric cooker of above-mentioned electric cooker, during cooking, the controllable centrifugation dress of controller
It sets and works, the interior pot of electric cooker is driven to rotate, so that the grain of rice in interior pot is formed turbulent flow with water, so that water stirs the grain of rice
It is dynamic, prevent the grain of rice from luming or breaing up the grain of rice of caking, solve in the prior art caused by the grain of rice lumps in pot heat
Amount can not be transmitted equably to whole pot rice, the influence electric cooker efficiency cooked and the rice group lumpd are wrapped in intermediate rice
Grain, which can not absorb water, leads to problems such as the grain of rice not to be gelatinized completely, the poor taste of rice so that the efficiency raising of cooking of electric cooker, and
The rice cooked is soft, in good taste.
In some embodiments of the invention, the centrifugal device is mounted in the pot lid 10.
In other embodiments of the present invention, as shown in Figure 1 to Figure 3, the centrifugal device is mounted on the cooker body 20
On, and positioned at the lower section or side of the interior pot 30.
In first specific embodiment of the present invention, as shown in Figure 1, the driving device includes motor 400, the electricity
Machine 400 be mounted on the cooker body 20 on, and positioned at the interior pot 30 lower section, the motor shaft 4000 of the motor 400 with it is described
The bottom wall of interior pot 30 is connected, and the interior pot 30 can be driven to rotate.
In second specific example of the present invention, as shown in Fig. 2, the driving device includes motor 400, the motor
400 are mounted in the cooker body 20, and are equipped on the lower section of the interior pot 30, the motor shaft 4000 of the motor 400
First gear 4020 is connected with transmission shaft 401 on the bottom wall of the interior pot 30, is equipped on the transmission shaft 401 and described
The second gear 4021 that one gear 4020 is meshed.
In the third specific embodiment of the present invention, as shown in figure 3, the driving device includes motor 400, the electricity
Machine 400 is mounted in the cooker body 20, and is installed on the lower section of the interior pot 30, the motor shaft 4000 of the motor 400
There is the first belt pulley 4030, transmission shaft 401 is connected on the bottom wall of the interior pot 30, second is equipped on the transmission shaft 401
Belt pulley 4031, first belt pulley 4030 are connected with second belt pulley 4031 by belt 4032.
In first specific embodiment, motor be slowspeed machine (such as：Stepper motor), motor shaft is directly as transmission
The rotary motion of motor is passed to interior pot by axis；One tooth is respectively set in the second specific embodiment, on motor shaft and transmission shaft
Wheel, the rotary motion of motor passes to transmission shaft by meshed gears, then is ultimately transferred to interior pot by transmission shaft；Have in third
One belt pulley is respectively set in body embodiment, on motor shaft and transmission shaft, and the rotary motion of motor passes through two belt pulleys and belt
Transmission shaft is passed to, then interior pot is ultimately transferred to by transmission shaft.It is, of course, also possible to realize by other means motor and interior pot it
Between movement transmission, such as：Turbine, worm structure etc., do not repeat one by one herein.
In some examples of the present invention, as shown in Figure 4 and Figure 5, the bottom wall of the transmission shaft 401 and the interior pot 30
One of 300 is equipped with circumferential limit protrusion 4010, another is equipped with and 4010 matched limit of the circumferential limit protrusion
Position groove 3000.
One of the bottom wall of transmission shaft and interior pot is equipped with circumferential limit protrusion, another is equipped with limiting groove, circumferential
Limit protrusion is matched with limiting groove, realizes the circumferential limit between transmission shaft and interior pot, so that transmission shaft drives interior pot
It is rotated.
In the specific example of the present invention, as shown in figure 4, the transmission shaft 401 is equipped with the circumferential limit protrusion
4010, and the circumferential limit protrusion 4010 is non-circular protrusion, the bottom wall 300 is equipped with and the circumferential limit protrusion
The compatible limiting groove of 4010 shapes 3000.
In another specific example of the present invention, as shown in figure 5, the transmission shaft 401 is equipped with multiple circumferential limits
Position protrusion 4010, the bottom wall 300 are equipped with multiple limiting grooves compatible with multiple circumferential limit protrusions 4010
3000。
It is of course also possible to including circumferential limit protrusion is arranged on the bottom wall of pot, limiting groove is arranged on transmission shaft,
The same circumferential limit that can be achieved between transmission shaft and interior pot.
In conclusion the control method of electric cooker provided in an embodiment of the present invention, controls centrifugal device by controller and makees
Rotary motion realizes convection current back and forth in pot including rice, water, achievees the effect that rolling, so as to eliminate cook during rice
Grain sticks together, caking phenomenon occurs；It is rotated in the water suction stage by pot in setting, promotes the grain of rice fully to absorb water, pass through
Pot is rotated in rapid heat-up stage in setting, prevents the grain of rice from luming, the even heat of interior pot is made to pass to the rice of whole pot, is led to
It crosses pot in setting to be rotated in boiling stage, so that whole pot rice is in uniform temperature field, realize whole pot rice uniformly paste
Change so that the rice cooked it is in good taste.
In the description of the present invention, term " multiple " refers to two or more；Unless otherwise stated or specified, term
" installation ", " connected ", " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, it can also
It is to be detachably connected, or be integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.For ability
For the those of ordinary skill in domain, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of control method of electric cooker, which is characterized in that include the following steps：
Electric cooker pot rotation in the water suction stage is controlled by centrifugal device, so that the rice water in the interior pot generates centrifugation
Movement, meter Shui combine its own gravity and the effect with the resistance and viscous force of interior pot during centrifugal movement, form turbulent flow；
The ratio of centrifugal force suffered by the grain of rice in turbulent condition and suffered viscous force is more than 5000.
2. according to the control method of electric cooker shown in claim 1, which is characterized in that
The size F=4 π of centrifugal force suffered by the grain of rice in turbulent condition2mn2R, wherein m are the quality of the grain of rice, and n is in described
The rotating speed of pot, r are distance of the grain of rice to the center of the interior pot.
3. according to the control method of electric cooker shown in claim 1, which is characterized in that
The coefficient of viscosity of viscous force suffered by the grain of rice in turbulent condition is 80 to 120.
4. according to the control method of electric cooker shown in any one of claims 1 to 3, which is characterized in that
The water temperature in the water suction stage is 40 to 60 degrees Celsius.
5. according to the control method of electric cooker shown in any one of claims 1 to 3, which is characterized in that
The centrifugal device controls the interior pot and makees speed-changing rotation.
6. according to the control method of electric cooker shown in claim 5, which is characterized in that
The rotating speed that the centrifugal device controls the interior pot is 10-400 revs/min.
7. according to the control method of electric cooker shown in any one of claims 1 to 3, which is characterized in that
The internal diameter of the interior pot is 160-240mm.
8. a kind of electric cooker, which is characterized in that using the control method of the electric cooker as described in any one of claim 1 to 7
It is controlled, including：
Pot lid；
Cooker body, the pot lid is opened or lid closes in the cooker body；
Interior pot, the interior pot are placed into the cooker body；
Centrifugal device, the centrifugal device are connected with the interior pot, and the interior pot is driven to rotate the meter Shui so that in interior pot
Centrifugal movement is generated, meter Shui combines its own gravity and the effect with the resistance and viscous force of interior pot, shape during centrifugal movement
At turbulent flow, and the ratio of centrifugal force and suffered viscous force suffered by the grain of rice in turbulent condition is more than 5000；With
Controller, the controller control the work of the centrifugal device.
9. electric cooker according to claim 8, which is characterized in that
The centrifugal device includes motor, and the motor is mounted in the pot lid；Or
The motor is mounted in the cooker body, and positioned at the lower section or side of the interior pot.
10. electric cooker according to claim 9, which is characterized in that
The motor is located at the lower section of the interior pot, and the motor shaft of the motor is connected with the bottom wall of the interior pot, and drives
The interior pot rotation.
11. electric cooker according to claim 9, which is characterized in that
The motor is located at the lower section of the interior pot, is equipped with first gear on the motor shaft, connects on the bottom wall of the interior pot
It is connected to transmission shaft, the second gear being meshed with the first gear is installed on the transmission shaft；Or
First belt pulley is installed on the motor shaft, transmission shaft is connected on the bottom wall of the interior pot, is pacified on the transmission shaft
Equipped with the second belt pulley, first belt pulley is connected with second belt pulley by belt.
12. electric cooker according to claim 11, which is characterized in that
One of the transmission shaft and the bottom wall is equipped with circumferential limit protrusion, another is equipped with and the circumferential direction limit convex
Play matched limiting groove.
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| CN201410629719.1A CN105615617B (en) | 2014-11-07 | 2014-11-07 | Electric cooker and its control method |
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| CN201410629719.1A CN105615617B (en) | 2014-11-07 | 2014-11-07 | Electric cooker and its control method |
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| CN105615617B true CN105615617B (en) | 2018-07-27 |
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| CN109549450B (en) * | 2017-09-25 | 2021-09-21 | 佛山市顺德区美的电热电器制造有限公司 | Control method of cooking appliance |
| CN110575081A (en) * | 2018-06-08 | 2019-12-17 | 佛山市顺德区美的电热电器制造有限公司 | Cooking utensil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879889Y (en) * | 2006-02-25 | 2007-03-21 | 韦阳 | Automatic pan for stir-frying |
| JP5494162B2 (en) * | 2010-04-14 | 2014-05-14 | パナソニック株式会社 | rice cooker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2903442B2 (en) * | 1991-10-31 | 1999-06-07 | 三菱電機ホーム機器株式会社 | rice cooker |
| JPH0723851A (en) * | 1993-07-16 | 1995-01-27 | Mitsubishi Electric Corp | Rice cooker and control method therefor |
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2014
- 2014-11-07 CN CN201410629719.1A patent/CN105615617B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879889Y (en) * | 2006-02-25 | 2007-03-21 | 韦阳 | Automatic pan for stir-frying |
| JP5494162B2 (en) * | 2010-04-14 | 2014-05-14 | パナソニック株式会社 | rice cooker |
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