JP2000229025A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly cook rice porridge from the residual boiled rice by providing, on an operation part, a selecting means for selecting a general heating for boiling raw rice and a rice porridge heating for heating the boiled rice with addition of water to make rice porridge. SOLUTION: An inner pan 2 is attachably and detachably inserted to a body 1, and the upper opening of the inner pan 2 is covered with an outer lid 3. An operation part 4 is provided on the outside front surface of the body 1, and connected to a control part 5 set in the lower part of the body 1. A heating part 6 for heating the inner pan 2 and a temperature detecting means 7 for detecting the temperature of the bottom of the inner pan 2 are provided within the body 1 and connected to the control part 5. A selecting means is further provided in the operation part 4, so that rice porridge heating can be selected in addition to general boiling of raw rice. When the rice porridge heating is selected, the inner pan 2 can be heated through the heating part 6 by the rice porridge heating means 10 of the control part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker, and more particularly to a technique for realizing a function of easily and quickly making a porridge from rice already cooked, in addition to a normal rice cooking function for cooking rice from raw rice. Things.

[0002]

2. Description of the Related Art In a conventional rice cooker, when rice is cooked from raw rice, a control unit controls a heating unit by putting rice and an appropriate amount of water into an inner pot and operating a rice cooker switch of an operation unit. , Cook rice. This "cook rice"
The raw rice that cannot be digested (β-starch) is converted into digestible rice (α-starch). Water and rice are heated and boiled.
It is important to keep at a high temperature of at least 20 ° C. for at least 20 minutes.

[0003] Generally, in a rice cooker, Japanese Patent No. 2707202 is used.
As shown in the publication, the rice is heated at a low temperature for 10 to 15 minutes, water is absorbed into rice, and then heated with a strong heating amount and boiled for 10 to 15 minutes. If boiling (98 ° C. or more) continues for 5 to 10 minutes, water is not absorbed by the rice, and the temperature at the bottom of the inner pot, which was about 100 ° C. during boiling, rises rapidly. This temperature change is detected by the temperature detecting means, and the heating is stopped. After this, 10-1
By steaming for 5 minutes, make up for the shortage of the conditions of 98 ° C for 20 minutes and make rice. The total required time is close to one hour.

A rice cooker having a porridge cooking function is already known as disclosed in Japanese Patent Laid-Open No. 59-26. Rice porridge is cooked with a large amount of water compared to regular rice cooked rice, so that water does not disappear even if simmered for 20 to 40 minutes after boiling. Therefore, the temperature detecting means does not detect the sudden rise in the temperature at the bottom of the inner pot, but rather sets the preset 2
When the simmering time of about 0 to 40 minutes ends, rice porridge rice cooking is automatically ended. Since the boiled time of porridge is longer than the pre-gelatinized condition of 20 minutes, the porridge can be sufficiently α-starched and eaten without supplementing the time by steaming.

[0005]

In such a conventional rice cooker, heating control is performed on the premise that rice or porridge is cooked from raw rice (maintaining the temperature and time for α-starch). You cannot make porridge from (α starch). Zoriki is a method in which boiling rice, ingredients, etc. are added to cooked rice, heated, and then cooked to stop heating. Therefore, since the rice is already cooked (gelatinized), heating for a long time determined by the above-described gelatinization conditions is not required.

In addition, since porridge cooking is stopped in a state where juice remains like a rice porridge, it is impossible to make porridge rice by controlling to stop heating due to a sharp rise in the temperature of the bottom of an inner rice cooker. Further, in the conventional rice porridge heating control, porridge and boiling are performed in such a manner that heating is stopped in a state where water remains, but the simmering time is too long, and the porridge does not collapse and become porridge. In addition, there is a problem that heating takes a long time and is not practical.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to make it possible to easily and quickly prepare porridge from rice cooked with polished rice, in addition to polished rice and porridge rice from raw rice.

[0008] That is, after boiling, at 98 ° C or more, 2
In addition to normal heating on the premise that heating is carried out for 0 minutes or more, by selecting porridge heating means in the operation unit, rice and porridge soup and ingredients can be heated. , So that it can be boiled, the heating is completed by the porridge heating means after a short period of time of 20 minutes or less after boiling or boiling, so that the juice in the inner pot does not run out and there is no collapse of boiling You can easily make porridge.

[0009] Further, by employing a configuration in which heating is terminated within a certain period of time after the boiling state is detected by the boiling detecting means, the amount of rice in the inner pot and the amount of juice and ingredients to be added are various, and the amount of water until the boiling is reached. Even if the time is uncertain, a stable porridge can be provided.

[0010] Furthermore, by adjusting the boiling time from the boiling to the end of heating or by selecting from two or more types of cooking time, it is possible to make porridge even in the case of ingredients that require a long cooking time. The performance is further improved.

The selection means can be easily activated by providing a selection switch or heating start switch dedicated to porridge, so that the convenience can be further increased.

If the display means or the notifying means informs the user of the completion after the heating of the porridge or after a certain period of time when the boiling is calmed down, the convenience is improved, especially in a hurry morning.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to an inner pot which is detachably housed in a main body, a heating section for heating rice and water put in the inner pot, a control section for controlling the heating section, and a control section. In a rice cooker having an operation unit for input operation, the operation unit is provided with selection means for selecting normal heating for cooking rice from raw rice and porridge heating for making porridge for heating by adding moisture to already cooked rice. It is a thing.

[0014] When the porcelain heating is selected by the selection means, the mixture is heated by high heat until substantially boiling. After the substantially boiling, the heating is stopped or the heating is reduced for a certain period of time of 20 minutes or less, and the process is terminated. The heating unit is controlled via a control unit by a porcelain heating means set so as to end the heating in a state where moisture remains.

[0015] Further, a boiling detecting means for detecting boiling in the inner pot may be provided, and the detection of the substantially boiling may be performed by the boiling detecting means.

Further, the apparatus may be configured such that a fixed time from the detection of boiling by the boiling detecting means to the end of heating can be adjusted or selected from two or more kinds of time.

The selection means of the operation section may be provided with a selection switch or heating start switch dedicated to porridge heating in addition to a selection switch of a menu for cooking rice from normal raw rice, and a display section or notification means is provided. After the porridge heating,
Alternatively, the completion may be displayed or notified by the display unit or the notification unit after a certain time has elapsed after the end of the heating.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of an operation section of a jar rice cooker according to the present invention, FIG. 2 is a longitudinal sectional view of the rice cooker, FIG. 3 is a characteristic diagram showing a heating method for porridge heating, and FIG. FIG. 5 is a characteristic diagram showing heating of rice cooked from ordinary raw rice, and FIG. 6 is a characteristic diagram showing heating of rice cooked porridge from raw rice.

In the drawing, 1 is a main body, 2 is an inner pot, 3 is an outer lid, 4 is an operation unit, 5 is a control unit, 6 is a heating unit, 7 is a temperature detecting means,
8 is a boiling detecting means, 9 is a selecting means, 10 is a porridge heating means, 11 is a display section, and 12 is a notifying means.

Next, the configuration will be described in detail. An inner pot 2 is detachably inserted into the main body 1, and an upper opening of the inner pot 2 is covered with an outer lid 3. An operation unit 4 is provided on the outer front surface of the main body 1, and is connected to a control unit 5 installed at a lower part of the main body 1. A heating section 6 for heating the inner pot 2 and a temperature detecting means 7 for detecting a temperature at the bottom of the inner pot 2 are provided in the main body 1, and are connected to the control section 5. Boiling detection means 8 for detecting boiling by temperature change due to steam in the outer lid 3
Is also connected to the control unit 5.

The operation section 4 is provided with a selection means 9.
In addition to cooking rice from normal raw rice, you can select porridge heating. When the porridge heating is selected, the inner pot 2 can be heated via the heating unit 6 by the porridge heating means 10 of the control unit 5. The display unit 11 is provided adjacent to the operation unit 4 so as to be visible from outside, and the notification unit 12 is provided in the control unit 5.

Next, the operation will be described with reference to an example.

First, a description will be given of ordinary white rice cooking. The user puts an appropriate amount of rice and water in the inner pot 2 and stores it in the main body 1.
Close the outer lid 3. Next, white rice cooking is selected by the selection means 9 of the operation unit 4. For this selection, a configuration in which a white rice cooker key is pressed can be considered, but in the present embodiment, the selection key is operated while looking at the display unit 11 so that the display is selected to be white rice.

Next, when the start key of rice cooking is pressed, rice cooking is started. In cooking rice, the inner pot 2 is heated by the heating unit 6, and the heating amount is adjusted by the control unit 5 based on the temperature information of the temperature detection unit 7. As shown in FIG. 5, the so-called “at first, draw the fire when the chorochoro, middle papa, and so on…” is performed, and the raw rice is kept at about 30 to 40 ° C. for about 10 minutes, and water is added to the raw rice. After sucking efficiently and sufficiently, the heating amount is switched to a strong heating amount, and when it is substantially in a boiling state, the heating amount is reduced to a heating amount that maintains the boiling. When the rice absorbs water and the water inside the inner pot 2 runs out, the temperature at the bottom of the inner pot 2 rises rapidly, and the temperature is detected by the temperature detecting means 7 to end the heating. After that, steaming is performed for about 15 minutes to maintain 98 ° C or more for 20 minutes or more.
Cooking conditions are satisfied and rice cooking is completed.

In this example, it is assumed that three rice cookers are cooked in the evening by this series of cooked white rice. If four family members ate two goats for dinner, one gogo is left. In the case of 1 go, it is not enough for breakfast the next morning. Conventionally, the 1 go is put in a refrigerator, etc., the inner pot 2 is washed, and the next morning, for example, 2 go is washed with rice and the inner pot 2 is put in the body. In general, it is inserted into the unit 1 and a timer is reserved (not shown in the embodiment) to cook a new required portion of rice.

On the other hand, according to the present invention, the newly provided porridge function allows the following uses. Even if the remaining porridge is used, the porridge will be sufficient for breakfast for four people, and since there is little rice, calories are low. It is easy to make healthy porridge that is low and has abundant nutrients from the ingredients.

That is, the remaining one is kept warm until the next morning. The next morning, in the inner pot 2 with the remaining rice,
Add an appropriate amount of water or hot water, seasonings such as dashi stock, and ingredients such as eggs. When the outer lid 3 is closed, the selection key is operated while watching the display on the selection means 9 of the operation unit 4 to select the display to be porridge, and the start key of rice cooking is operated, the heating unit 6 by the porridge heating means 10 is heated. Is started. In this embodiment, rice porridge is selected while watching the display in the present embodiment. However, rice porridge rice cooking may be started when a rice porridge key is provided and the rice porridge key is operated directly.

Now, when the control of the heating section 6 by the porridge heating means 10 is started, the heating is controlled as shown in FIG. In other words, since the rice is already cooked and pre-gelatinized, there is no need to maintain a temperature of 30 to 40 ° C. to absorb the water into the rice, and no pre-gelatinization conditions of 98 ° C. or more and 20 minutes or more are necessary. Therefore, when the heating is started at a high heating amount at the same time as the start, and the boiling is effected, the heating amount may be reduced or the heating may be stopped. FIG. 3 shows a case where heating is stopped, and FIG. 4 shows a case where heating is reduced. In the rice cooked rice shown in FIG. 5, it was detected by the temperature detecting means 7 that the inner part of the inner pot 2 was depleted of water and the temperature rose rapidly at the bottom, and the process was shifted to steaming. In order to complete the process with water remaining in the sample 2, the amount of heating may be reduced by boiling and boiling, and the process may be stopped for a predetermined time or stopped by boiling. The timing of the boiling, which is the reference for this stop, is that porridge with less stickiness in water does not spill over even if the heating is not reduced or stopped at the same time as the boiling, so it is not necessary to accurately detect the boiling, and various variable factors are added. However, the time during which boiling is surely performed may be determined in advance as a certain time.

However, in this embodiment, the boiling detecting means 8 is provided, and the amount of heating is reduced by detecting the boiling means.
For example, the process is terminated after 3 minutes or at the same time as the detection of boiling. As a result, the amount of remaining rice, the amount of water,
Since the boiling point can be accurately determined even if there is a change due to the amount of the ingredients and the temperature, it is possible to accurately determine the boiling time in advance in consideration of these factors, and to shorten the boiling time in many operating conditions, It can be finished and the convenience improves during busy morning hours.

Further, if the selection means 9 enables selection of porridge heating from a plurality of types, the convenience is further improved. That is, in the case of an ingredient that does not require much heating, it is cooked in a short time in a pattern of boiling and immediately stopping the heating as shown in FIG. The pattern of boiling for a certain period of time by heating can be selected, and the convenience that can be done in a short time within 10 minutes and the convenience that various dishes can be enjoyed can be increased.

In both heating patterns,
The user may be informed of the completion by the display unit 11 or the notification unit 12 at the end of the heating. However, when the outer lid 3 is opened immediately after the end of the heating, the steam will come out violently. If the user is notified of the completion after about a minute by the display unit 11 or the notification unit 12, the safety is effectively increased.

In this embodiment, the case of making porridge from the remaining rice in the warmed state is described. However, it is of course possible to make the porridge from the cold remaining unheated rice. In this case, the time until boiling increases, but there is no problem in the method of detecting the boiling point by the boiling detecting means 8.

[0033]

As described above, according to the present invention, the operating section is provided with a selection means for selecting normal heating for cooking rice from raw rice and porridge cooking for making porridge with cooked rice, and the porridge heating is selected by the selection means. In this case, the porcelain heating means is provided for heating to approximately the boiling point, stopping the heating after the substantially boiling point, or heating with low heat for a fixed time shorter than 20 minutes of the pregelatinization condition, and then stopping.
The porridge can be easily and quickly made from the remaining cooked rice.

In addition, even a small amount of rice left halfway can be used as porridge for several people. If the heating unit is a recent mainstream electromagnetic cooking heating type, the amount of heating is high and the porridge can be cooked in about 5 minutes. It is very convenient.

In addition, there is no need to wash the inner pot or prepare another pot, and simply add the ingredients and seasonings to the inner pot containing the rice that has been kept warm. Can be made.

[Brief description of the drawings]

FIG. 1 is a front view of an operation unit of a jar rice cooker according to the present invention.

FIG. 2 is a longitudinal sectional view of the rice cooker.

FIG. 3 is a characteristic diagram showing a heating method of the mixed cooking heating.

FIG. 4 is a characteristic diagram showing a heating method according to another method.

FIG. 5 is a characteristic diagram showing heating of cooked rice from the same raw rice.

FIG. 6 is a diagram showing heating of cooked rice porridge from raw rice.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Inner pot 4 Operation part 5 Control part 6 Heating part 7 Temperature detection means 8 Boiling detection means 9 Selection means 10 Porcelain heating means 11 Display part 12 Notification means

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4B055 AA02 BA34 BA71 CA09 CA61 CA71 CB27 CD31 CD41 CD51 CD57 GA04 GA12 GB03 GB12 GB44 GB45 GC12 GC24 GC34 GC36 GD03 GD05 GD06

Claims (6)

[Claims] An inner pot (2) removably housed in a main body (1), a heating unit (6) for heating rice and water contained in the inner pot (2), and a heating unit (6). A control unit (5) for controlling
In a rice cooker having an operation unit (4) for inputting an operation to a control unit (5), the operation unit (4) is heated normally by cooking rice from raw rice, and is heated by adding moisture to rice already cooked. Selection means to select porridge heating to make porridge etc. (9)
A rice cooker characterized by comprising: 2. When porcelain heating is selected by the selection means (9), the mixture is heated by high heat until substantially boiling, and after substantially boiling, the heating is stopped or the heating is reduced for a certain period of time of 20 minutes or less, and the process is terminated. The heating unit (6) is controlled via the control unit (5) by a porcelain heating means (10) set to end the heating in a state where moisture remains in the inner pot (2). Item 4. The rice cooker according to Item 1. 3. Boiling detecting means (8) for detecting boiling in the inner pot (2), and the detection of the substantially boiling is performed by the boiling detecting means (8). The described rice cooker. 4. The apparatus according to claim 2, wherein a predetermined time from the detection of boiling by the boiling detection means (8) to the end of heating can be adjusted or selected from two or more kinds of time. Rice cooker. 5. The selection means (9) of the operation section (4) is provided with a selection switch dedicated to porridge heating or a heating start switch in addition to a selection switch of a menu for cooking rice from normal raw rice. The rice cooker according to claim 1, wherein 6. A display section (11) or a notifying means (12) is provided, and the completion is displayed by the display section (11) or the notifying means (12) after a certain period of time has elapsed after the heating of the porridge or the end of the heating. 2. The rice cooker according to claim 1, wherein the notification is made.