JP2000201809A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker capable of preventing the inside of a microwave oven from being stained by boiling-over and suppressing steaming irregularities from being generated in the rice cooker capable of cooking rice inside the microwave oven. SOLUTION: This rice cooker capable of cooking the rice inside the microwave oven is composed of an inner pot main body 10 made of ceramics for housing the rice and water by a prescribed ratio in the inside, an inner lid 20 made of the ceramics for attachably and detachably covering the upper part opening of the inner pot main body 10, an outer tray 30 made of the ceramics for receiving the inner pot main body 10 and the inner lid 20 and an outer lid 40 made of the ceramics attachable and detachable to/from the upper part of the outer tray 30 and capable of housing the inner pot main body 10 and the inner lid 20 in the inside. In this case, it is desirable to form the inner pot main body 10, the inner lid 20, the outer tray 30 and the outer lid 40 by thermal shock resistant ceramics and to provide a heating element M composed of the thermal shock resistant ceramics and an electric conductor on the almost center of the outer tray 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rice cooker that can cook rice in a microwave oven.

[0002]

2. Description of the Related Art Conventionally, there is a rice cooker that can cook rice in a microwave oven, but water in the rice cooker is not treated with the conventional rice cooker because no countermeasures against spilling over are taken. There was a risk of boiling and spilling during cooking of rice, thereby fouling the inside of the microwave oven. In addition, in conventional rice cookers, since no heat retention measures are taken, if heating is stopped after cooking, the temperature inside the rice cooker cannot be maintained at a uniform high temperature state, and uneven steaming may occur.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to address the above-mentioned problems, and has a rice cooker that can be cooked in a microwave oven and rice (white rice, glutinous rice, brown rice, etc.) inside. And water in a predetermined ratio, a ceramic inner lid body, a ceramic inner lid that removably covers the upper opening of the inner kettle main body, and a ceramic outer lid that receives these inner pot main bodies and the inner lid. It is characterized in that it comprises a receiving tray and an outer lid made of ceramics which can be attached to and detached from the upper part of the outer receiving tray and which can accommodate the inner pot body and the inner lid.
In this case, each of the ceramics is a heat-shock resistant ceramic, and a heating element (known in Japanese Patent Application Laid-Open No. 145946/1995) made of a heat-shock resistant ceramic and a conductor is provided substantially at the center of the outer tray. It is desirable to provide.

[0004]

In the rice cooker according to the present invention,
A ceramic inner pot body that contains rice and water at a predetermined ratio inside, a ceramic inner lid that removably covers the upper opening of the inner pot body, and a ceramic that receives these inner pot bodies and inner lid The inner pot is composed of an inner pot body and an inner lid, which is composed of a ceramic outer lid that can be attached to and detached from the top of the outer tray, and that can be attached to and detached from the upper part of the outer tray. And the outer pot composed of an outer pan and an outer lid, and the synergistic effect of the heat storage power inherent in ceramics makes the entire inner pot substantially uniform even if heating is stopped after cooking. It can be maintained at a high temperature for a long time, and the occurrence of uneven steaming can be suppressed.

[0005] In the rice cooker according to the present invention,
Since the outer tray receives the inner pot composed of the inner pot body and the inner lid, even if boiling water spills out of the inner pot during cooking, it can be reliably received by the outer tray, Does not pollute the range.

In the practice of the present invention, when each of the above ceramics is made of a thermal shock resistant ceramic, it is not damaged even if a sudden temperature difference occurs.
When the dirt is most easily removed immediately after use, for example, the outer tray and the inner lid can be washed with water, and the rice cooker can be easily washed.

In the practice of the present invention, if a heating element made of a heat-shock resistant ceramic and a conductor is provided substantially at the center of the outer tray, the inner pot can be heated by the heating force of the heating element. In addition, rice and water inside the inner pot can be heated by conduction heating and microwave heating when cooking rice, and it is possible to suppress the occurrence of temperature unevenness as compared with heating using only microwave heating, thereby suppressing uneven cooking. At the same time, the entire inside of the inner pot after cooking can be maintained at a substantially uniform high temperature state by the heat storage power of the heating element, and the occurrence of uneven steaming can be suppressed as compared with the above.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an embodiment of a rice cooker according to the present invention. This rice cooker includes an inner pot main body 10, an inner lid 20, an outer receiving tray 30, and an outer lid 40 made of heat and shock resistant ceramics. ing.

The inner pot body 10 accommodates rice and water therein at a predetermined ratio, has a bowl shape with an open upper portion, and has a circular bottom surface as viewed from the bottom. A thread cut 11 is provided integrally. The inner lid 20 constitutes an inner pot with the inner pot main body 10, has a disk shape in plan view, and detachably covers an upper opening of the inner pot main body 10. Knob 21 in the upper center
Are provided integrally.

The outer receiving tray 30 includes the inner pot main body 10 and the inner lid 20.
That is, it receives the inner pot and has a circular dish shape in plan view, and a rising portion 31 and a stepped receiving surface 32 are integrally formed on the annular periphery. An annular protrusion 33 for positioning the inner hook by engaging with the thread trimmer 11 of the inner hook main body 10 is formed integrally at substantially the center of the outer receiving tray 30. The heating element M is fixed with screws (not shown). Also, the protrusion 3
Numeral 3 has a function of positioning the heating element M, and also has a function as a weir that prevents water spilled from the inner pot from entering the heating element M during rice cooking.

The heating element M is made of a thermal shock resistant ceramic and a conductor.
No. 5946, which is heated to a high temperature by a microwave and rises in temperature (when the rice is cooked in the state shown in FIG. 1, the temperature rises to about 200 ° C., and when it is microwave-heated alone) Temperature rises to about 800 ° C.). The heating element M is, as shown in FIG.
It has a disk-like shape and has a thickness slightly protruding upward from the projections 33, and comes into contact with the inner bottom surface of the thread cutter 11 of the inner pot body 10, so that the inner pot body 10 is heated from the bottom face. It has become.

The outer lid 40 constitutes an outer hook with the outer tray 30, and has an annular outward flange 41 at the lower end.
The outward receiving plate 30 is provided by the outward flange 41.
The inner pot main body 10 and the inner lid 20 can be accommodated therein, and a pair of handles 42 are integrally formed on the outer periphery of an intermediate portion thereof.

The rice cooker configured as described above can be used, for example, as follows. (A) When using white rice (1) Cook quickly Wash 1 go of white rice well and soak in water for 30 minutes or more. White rice is stored in the inner pot body 10 together with 240 cc of water, and the inner lid 20
And put it on the outer tray 30, cover it with the outer lid 40 and put it in the microwave oven. Heat for 5 minutes and 30 seconds in a microwave. Heat for 3 minutes and 30 seconds in a microwave. Steam in the microwave for 10 minutes. (2) Cook the stove Wash the rice 1 go well and soak in the water for at least 30 minutes. White rice is stored in the inner pot body 10 together with 240 cc of water, and the inner lid 20
And put it on the outer tray 30, cover it with the outer lid 40 and put it in the microwave oven. Cook for 5 minutes on a microwave. Heat for 8 minutes in a microwave. Steam in the microwave for 10 minutes. After mixing the rice in the inner pot body 10, steam for 5 minutes. (3) Cook porridge Wash 0.5 g of white rice well and soak in water for 30 minutes or more.
White rice is housed in the inner pot body 10 together with 360 cc of water, placed on the outer tray 30 with the inner lid 20, and put in the microwave oven with the outer lid 40. Cook for 5 minutes on a microwave. Heat for 9 minutes in a microwave. Steam in the microwave for 10 minutes. Add an appropriate amount of salt and mix. (B) When using glutinous rice (cooking red rice) Wash 1 gog of rice thoroughly and soak in water for at least 30 minutes. Add 2 tablespoons of red rice azuki (commercially available) to glutinous rice, mix well, store in inner pot body 10 with 150 cc of water, put inner lid 20 on outer tray 30 and put outer lid 40 on. And put it in the microwave. Cook in a microwave for 6 minutes. Heat for 5 minutes in a microwave. Steam in the microwave for 20 minutes. Mix lightly and add salt if desired. (C) When using brown rice (cook brown rice) Wash 1 brown rice well and soak in water for 60 minutes or more. Brown rice is stored in the inner pot body 10 together with 310 cc of water, and
And put it on the outer tray 30, cover it with the outer lid 40 and put it in the microwave oven. Cook for 8 minutes on a microwave. Heat for 50 minutes in a microwave. Steam in the microwave for 30 minutes. If there is much water after steaming, heat for about 3 minutes in a microwave.

Each of the above examples is a guideline when the output of the microwave oven is equivalent to 500 W at room temperature of 20 ° C., and is appropriately adjusted according to the model, season, temperature and the like of the microwave oven. When the output of the microwave oven is equivalent to 600 W at room temperature of 20 ° C., the heating time and the steaming time are each set to about 2 hours.
Use with 0% reduction. If the microwave oven does not have a "low range" function, a "decompose raw" key is used as a cooking selection key.

By the way, in the rice cooker according to the present embodiment, a ceramic inner pot body 10 containing rice and water therein at a predetermined ratio, and a ceramic that removably covers an upper opening of the inner pot main body 10 are provided. Lid 20, made of ceramics, an outer tray 30 made of ceramics for receiving the inner pot body 10 and the inner lid 20, and detachable on the upper part of the outer tray 30 so that the inner pot body 10 and the inner lid 20 can be accommodated therein. Since the outer lid 40 is made of ceramics, the inner pot main body 10 and the inner lid 20 are formed.
Can be a double structure of an outer pot configured by an inner pot, an outer receiving tray 30, and an outer lid 40, and even if the heating is stopped after cooking, due to a synergistic effect of the heat storage power inherent in ceramics, It is possible to maintain the entire inside of the inner pot in a substantially uniform high-temperature state for a long time, and it is possible to suppress the occurrence of uneven steaming.

In the rice cooker of the present embodiment,
The outer tray 30 receives the inner pot constituted by the inner pot body 10 and the inner lid 20. Since the outer peripheral edge of the outer tray 30 is provided with a rising portion 31, water boils from the inner pot during rice cooking. Even if it spills out, it can be reliably received in the outer tray 30 and does not stain the inside of the microwave oven. In addition, the inner pot body 10, the inner lid 3
0, since the outer tray 30, the outer lid 40, the heating element M, etc. are made of heat-resistant and shock-resistant ceramics, they are not damaged even if a sudden temperature difference occurs. The saucer 30 and the inner lid 20 can be washed, and the rice cooker can be easily washed.

Further, in the rice cooker of the present embodiment,
Since the heating element M made of a heat-shock resistant ceramic and a conductor is provided substantially at the center of the outer tray 30, the inner pot can be heated by the heat generated by the heating element M, and rice and water inside the inner pot can be heated during rice cooking. Can be heated by conduction heating and microwave heating, and the occurrence of uneven temperature can be suppressed as compared with heating by only microwave heating, and uneven cooking can be suppressed. In addition, cooking can be performed by the heat storage power of the heating element M. The entire inner pot can be maintained at a substantially uniform high temperature state.
The occurrence of uneven steaming can be suppressed as compared with the case where no is provided.

In the above embodiment, the heating element M made of a heat-shock-resistant ceramic and a conductor is provided substantially at the center of the outer tray 30, but it is also possible to remove the heating element M. In this case, the steaming time in each of the above-mentioned use examples is increased by 5 minutes.

[Brief description of the drawings]

FIG. 1 is a front view of a rice cooker according to the present invention, taken along a central longitudinal section.

FIG. 2 is a perspective view of an inner hook main body, an inner lid, an outer tray, and an outer lid shown in FIG.

[Explanation of symbols]

10: inner pot body, 20: inner lid, 30: outer tray, 40 ...
Outer lid, M ... heating element.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshiro Sugie 1-24, Segi-cho, Tokoname-shi, Aichi F-term (reference) 4B055 AA03 BA52 BA56 BA63 CA01 CA24 CB02 CB17 FA01 FA09 FB23 FC09 FC20

Claims (3)

[Claims] 1. A rice cooker capable of cooking rice in a microwave oven, wherein a ceramic inner pot main body containing rice and water at a predetermined ratio therein and an upper opening of the inner pot main body are detachable. An inner lid made of ceramics, and an outer tray made of ceramics for receiving the inner pot body and the inner lid, and a ceramic made detachable on an upper portion of the outer tray and capable of housing the inner pot body and the inner lid therein. Rice cooker consisting of an outer lid. 2. The rice cooker according to claim 1, wherein each of the ceramics is a thermal shock resistant ceramic. 3. The rice cooker according to claim 1, wherein a heating element made of a thermal shock resistant ceramic and a conductor is provided substantially at the center of the outer receiving tray.