JPS60241865A - Rice cooking method - Google Patents
Rice cooking methodInfo
- Publication number
- JPS60241865A JPS60241865A JP59099928A JP9992884A JPS60241865A JP S60241865 A JPS60241865 A JP S60241865A JP 59099928 A JP59099928 A JP 59099928A JP 9992884 A JP9992884 A JP 9992884A JP S60241865 A JPS60241865 A JP S60241865A
- Authority
- JP
- Japan
- Prior art keywords
- rice
- heater
- cooking
- water
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Cookers (AREA)
- Cereal-Derived Products (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
この発明は炊飯方法に関し、更に詳細にいえばむらなく
おいしいご飯を炊き上げるための炊飯方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a rice cooking method, and more specifically, to a rice cooking method for evenly cooking delicious rice.
〈背景〉
ご飯を炊く場合には、先ず洗米した後、米を充分に水に
浸して吸水させ、その後は、弱火で加熱する吸水工程、
強火ぐ一気に炊き上げる炊き上げ工程、沸騰■稈、おき
火で加熱するむらし］−稈等をタイミングよく切り替え
ることにＪ、っておいしいご飯を炊きＬげ得ることが広
く知られている。<Background> When cooking rice, the rice is first washed, then thoroughly soaked in water to absorb water, and then heated over low heat to absorb water.
It is widely known that you can cook delicious rice by switching the culms at the right time.
これら各］：稈のうち、吸水工程は、強火で一気に炊き
上げる前に、米に充分吸水させるための工程であり、こ
の時間が知かすぎると、米に充分吸水させることができ
ないので、でき上がったご飯が、充分吸水させた米を炊
きにげた場合と比べてやや硬めになるという問題がある
他、上部の米とＦ部の米との間で吸水むらが生じ、上部
のご飯と下部のご飯どの間で硬さ等にむらを生じる等の
問題点を有することになる。Each of these]: Among the culms, the water absorption process is a process to allow the rice to absorb enough water before cooking it all at once over high heat.If this time is too short, the rice will not be able to absorb enough water, so the In addition to the problem that the cooked rice becomes slightly harder than when cooked with rice that has absorbed enough water, there is also uneven water absorption between the rice on the top and the rice in section F, causing the rice on the top and the rice on the bottom to This results in problems such as uneven hardness between rice grains.
〈従来技術〉
近年、各家紅に広く種及してきた炊飯器、炊飯ジＶ−等
においては、吸水工程、炊ぎ上げ工程、沸騰■稈等を、
炊飯時間、内鍋の内部温度等に依存して自動的に切り替
えるようにしており、使い勝手が良いものである。<Prior art> In recent years, rice cookers, rice cookers, etc., which have been widely used in various household appliances, have a water absorption process, a cooking process, a boiling process, etc.
It is easy to use as it automatically switches depending on the rice cooking time, internal temperature of the inner pot, etc.
しかし、吸水］工程としては、炊飯ヒータへの印加電力
を最大電力よりかなり小さく設定し、小電力の印加を所
定時間継続しでいるのみである。そり、で、炊飯ヒータ
は熱効率を考慮して内鍋の下面に接するように取付けら
れている。However, in the water absorption process, the power applied to the rice cooking heater is set to be considerably lower than the maximum power, and the application of small power is simply continued for a predetermined period of time. In consideration of thermal efficiency, the rice cooking heater is installed so as to be in contact with the bottom surface of the inner pot.
したがって、内鍋の下面に加えられる熱−丁ネルギーは
、内鍋を通して米および水に５えられ、米および水を胃
渇させることができる。但し、米および水の昇温につい
てみれば、米は固形物であり、水は固形物たる米の間隙
を通って対流できるだ（）であるから、上部温度と下部
温度とはかなり人きく異なり、したがって、米の吸水剤
についても、下部の米の方が上部の米よりも吸水剤が多
くなる。Therefore, the heat energy applied to the lower surface of the inner pot is transferred to the rice and water through the inner pot, and can make the rice and water thirsty. However, when looking at the temperature rise of rice and water, rice is a solid substance and water can convect through the gaps between the solid substances (), so the upper temperature and lower temperature are quite different. , Therefore, regarding the water-absorbing agent in rice, the rice in the lower part has more water-absorbing agent than the rice in the upper part.
このような状況下での吸水］二押を行なった後、炊き上
げ工程、沸騰工程、むらし工程等をｔＩなえば、上部の
ご飯と下部のご飯との聞て・硬ざ等にむらを生じる等の
不都合を発生さＵることに４【す、より一層の改善が望
まれていた。[Water absorption under such circumstances] After performing the double press, if you do the cooking process, boiling process, unevenness process, etc., the rice on the top and the bottom of the rice will be uneven in texture, hardness, etc. In order to avoid such inconveniences as the above, further improvements have been desired.
〈目的〉
この発明は１記の問題点に鑑みてなされたものであり、
上部のご飯と下部のご飯との間における炊きむらを減少
させて、おいしいご飯を炊き上げることができる炊飯方
法を提供づることを目的どする。<Purpose> This invention was made in view of the problems mentioned in 1.
To provide a rice cooking method capable of cooking delicious rice by reducing uneven cooking between upper and lower rice.
く構成〉
上記の目的を達成づるための、この発明の炊飯方法とし
−（は、吸水■稈、炊き一部げ工程、沸騰■稈、むらし
工程等を行なってご飯を炊き」−げる炊飯方法において
、吸水開始当初は、炊飯ヒータおよび保温ヒータへの印
加電力を最大電力より小ざい所定電力に設定し、内鍋内
の米および水の昇温にしたがって、炊飯ヒータへの印加
電力を減少させるとともに、保温ヒータへの印加重力を
増加させることを特徴としでいる。Structure> In order to achieve the above object, the rice cooking method of the present invention is to cook rice by performing a water absorption process, a cooking process, a boiling process, an uneven cooking process, etc. In the rice cooking method, at the beginning of water absorption, the power applied to the rice cooking heater and the warming heater is set to a predetermined power smaller than the maximum power, and as the temperature of the rice and water in the inner pot rises, the power applied to the rice cooking heater is set. It is characterized by increasing the applied force to the heat retaining heater.
〈実施例〉 以下、実施例を示す添付図面によって詳細に説明する。<Example> Hereinafter, embodiments will be described in detail with reference to the accompanying drawings showing examples.
第１図は、この発明を実施する炊飯ジャーの一部切欠側
を示しており、（１）は炊飯ジ１７一本体であり、（２
）は内鍋であり、（３）は内鍋（２）を収容する内鍋収
容容器であり、（４）は炊飯ヒータであり、（５）は内
鍋（２）の下面に接するリーミスタ等で構成される感熱
素子であり、（６）は保温ヒータであり、（７］は炊飯
スイッチであり、（８）はマイクロコンピュータ基板で
ある。FIG. 1 shows a partially cutaway side of a rice cooker embodying the present invention, where (1) is the main body of the rice cooker 17, and (2) is the main body of the rice cooker 17.
) is an inner pot, (3) is an inner pot storage container that accommodates the inner pot (2), (4) is a rice cooking heater, and (5) is a reamister etc. that is in contact with the bottom surface of the inner pot (2). (6) is a heat-retaining heater, (7) is a rice cooking switch, and (8) is a microcomputer board.
５−
第２図は第１図の炊飯ジ亀・−の要部の電気的構成ヲ示
シテオリ、（１０）Ｇ；ＪＣＰＵ 、 ＲＡＨ、ＲＯＨ
、Ｉ１０ボート、クロック発生器等を右するマイクロ−
１ンビユータであり、比較器（１１）（１２）（１３）
の出力端子をマイクロコンピュータ（１０）の入カポ−
１−に接続している。そして、直列接続した固定抵抗（
１４）と感熱素子（９との接続点（１５）を比較器ｆｌ
ｌ）（１２）（１３）の非反転入力端子と接続し、直列
接続した固定抵抗（１６Ｈ１７）の接続点（１８）を比
較器（１１）の反転入力端子と接続し、直列接続した固
定抵抗（１９Ｈ２０）の接続点（２１）を比較器（１２
）の反転入力端子と接続し、更に直列接続した固定抵抗
（２２）（２３）の接続点（２４）を比較器（１３）の
反転入力端子と接続している。5- Figure 2 shows the electrical configuration of the main parts of the rice cooking mechanism in Figure 1, (10) G; JCPU, RAH, ROH.
, I10 board, clock generator etc.
1 viewer, comparator (11) (12) (13)
Connect the output terminal of the microcomputer (10) to the input port of the microcomputer (10).
Connected to 1-. Then, a fixed resistor (
14) and the connection point (15) with the thermal element (9) is connected to the comparator fl.
l) Connect the fixed resistor (16H17) connected in series with the non-inverting input terminal of (12) and (13), and connect the connection point (18) with the inverting input terminal of the comparator (11), and connect the fixed resistor in series. (19H20) connection point (21) is connected to the comparator (12
), and the connecting point (24) of fixed resistors (22) and (23) connected in series is connected to the inverting input terminal of the comparator (13).
このように構成すれば比較器（１１）によって、感熱素
子（５）で検出された内鍋（２Ｊの底部温度が第１の所
定温度Ｔ１℃より高いか否かを示す信号をマイクロコン
ビ１−タ（１０）に入力し、比較器（１２）によって第
２の所定温度Ｔ２℃より高いか否かを示１信号をマイク
ロコンピュータ（１０）に入力し、更に比較器（１３）
によって第３の所定温度−［３℃より高−〇 −
いか否かを示す信号をマイク１］］ンピ］−タ（１ｏ）
に入力することができる。With this configuration, the comparator (11) transmits a signal indicating whether or not the bottom temperature of the inner pot (2J) detected by the heat-sensitive element (5) is higher than the first predetermined temperature T1°C to the microcombi 1-1. A comparator (12) inputs a signal indicating whether or not the temperature is higher than a second predetermined temperature T2°C to a microcomputer (10), and a comparator (13)
A signal indicating whether or not the third predetermined temperature is higher than 3° C.
can be entered.
また、炊飯スイッチ（力をマイクロ１ンピュータ（１０
）に接続している。You can also use the rice cooking switch (micro 1 computer (10
).
更に、印加電力制御手段としてのトライアック（２５）
ど炊飯ヒータ（４）とを商用交流電源（２６）の両端子
間に直列接続するとともに、印加電力制御手段としての
トライアック（２８）ど保温ヒータ（６）とを商用交流
Ｉ’ｍ １ｌｉｉｉ （２６）の両端子間に直列接続し
、ヒータ制御回路（２７） （２９）の出力信号をそれ
ぞれｉ・ライアック（２５）（２８）のゲート端子に印
加している。Furthermore, a triac (25) as applied power control means
A rice cooking heater (4) is connected in series between both terminals of a commercial AC power supply (26), and a triac (28) as an applied power control means and a heat retention heater (6) are connected to a commercial AC power source (26). ) are connected in series between both terminals of the heater control circuits (27) and (29), and the output signals of the heater control circuits (27) and (29) are applied to the gate terminals of the i-Liacs (25) and (28), respectively.
次いで、以上のように構成した炊飯ジャーの動作を、第
３図に示すプログラムによって説明する。Next, the operation of the rice cooker configured as above will be explained using the program shown in FIG.
内鍋（′２Ｊに所望量の米と、それに児合った水を入れ
、炊飯スイッチ（７１をＯＮとすれば、ステップ■にお
いて経過時間をカウントし、ステップ■において、感熱
素子（５）による検出温度が第１の所定温度Ｔ１℃（例
えば常温よりやや高い２６℃）に達したか否かを判別し
、°１−１℃以下であれば、ステップ■において炊飯ヒ
ータ（４）への印加電力を最大電力１″）１ＨＷより小
さい所定電力Ｐ１１Ｗに設定し、ステップ■においで保
温ヒータ（６）への印加電力を最大電力Ｐ２ＨＷより小
さい所定電力Ｐ２１Ｗに設定し、以後この設定電力での
加熱を継続する。また、加熱を接続することにより、ス
テップ■において王１℃より高温であると判断されば、
ステップ■において、感熱素子（５）による検出温度が
第２の所定温度Ｔ２℃（例えば、吸水■稈終了時の温度
として予め設定された温度よりもやや低い３８℃）に達
したか否かを判別し、■２℃以Ｆであれば、ステップ■
において炊飯に−タ（４）への印加電圧を、上記電力Ｐ
１１Ｗより小さい所定電力Ｐ １２Ｗに設定し、ステッ
プ■において保温ヒータ（６）への印加電力を、［配電
力Ｐ２１Ｗより大きく、最大電ツノＰ２ＨＷより小さい
所定電）Ｊ Ｐ ２２Ｗに設定し、以後この設定電力で
の加熱を継続する。また、加熱を継続することにより、
ステップ■において１２℃より高温であると判別されば
、ステップ■において炊飯ヒータ（４）への印加電力を
零とし、ステップ■において、感熱素子（５１よる検出
温度が第３の所定温度Ｔ３℃（例えば、吸水工程終了時
の温度として予め設定されたｍｌとしての４１℃）に達
したが否かを判別する。そして、１３℃以下であればス
テップ■において保温ヒータ（６）に最大電力Ｐ ２Ｈ
Ｗを印加し、１３℃より高温であれば、ステップ＠にお
いて保温ヒータ（６）への印加電力を零とＪることによ
り、感熱素子（５）による検出温度がほぼ１３℃に近い
状態に保持する。その後はステップＯにおいて、カウン
ト時間が吸水工程を行なうべき時間として設定された時
間ｔ１ｓｅｃに達したが否かを判別し、ｔ １ｓｅｃに
達するまでは上記判別処理を反復し、ｊ Ｉ ＳｅＣに
達した後は、炊き上げ工程を行なう。If you put the desired amount of rice and water in the inner pot ('2J) and turn on the rice cooking switch (71), the elapsed time is counted in step 2, and the detection is performed by the heat-sensitive element (5) in step 2. It is determined whether the temperature has reached a first predetermined temperature T1°C (for example, 26°C, which is slightly higher than room temperature), and if it is below °1-1°C, the power is applied to the rice cooking heater (4) in step (3). is set to a predetermined power P11W that is smaller than the maximum power 1") 1HW, and in step (2), the power applied to the heat retention heater (6) is set to a predetermined power P21W that is smaller than the maximum power P2HW, and from then on heating is performed at this set power. Continue.Also, by connecting the heating, if it is determined that the temperature is higher than 1°C in step ①,
In step (2), it is determined whether the temperature detected by the heat-sensitive element (5) has reached the second predetermined temperature T2°C (for example, 38°C, which is slightly lower than the preset temperature at the end of water absorption). Determine, ■ If it is 2℃ or higher, step ■
When cooking rice, the voltage applied to the heater (4) is changed to the above power P.
The predetermined power P is set to 12W, which is smaller than 11W, and the power applied to the heat-retaining heater (6) is set to [predetermined power larger than the distribution power P21W and smaller than the maximum power horn P2HW] J P 22W in step ①. Continue heating at the set power. Also, by continuing heating,
If it is determined in step (2) that the temperature is higher than 12°C, the power applied to the rice cooking heater (4) is reduced to zero in step (2), and in step (2), the temperature detected by the heat sensitive element (51) reaches the third predetermined temperature T3°C ( For example, it is determined whether the temperature at the end of the water absorption process has reached a preset temperature (41°C in ml) or not.If it is 13°C or lower, the maximum power P2H is applied to the heat-retaining heater (6) in step (2).
If W is applied and the temperature is higher than 13°C, the temperature detected by the heat-sensitive element (5) is maintained at approximately 13°C by reducing the power applied to the heat-retaining heater (6) to zero in step @. do. After that, in step O, it is determined whether the count time has reached the time t1sec set as the time to perform the water absorption process, and the above determination process is repeated until it reaches t1sec, and j I SeC is reached. After that, do the cooking process.
以上のように吸水］工程における炊飯ヒータ（４）およ
び保温ヒータ（６）への印加電力を制御すれば、吸水工
程初期には、炊飯ヒータ（４）によって内鍋（′２Ｊ下
部の米および水の温度が速やかに上昇するので、内ｖＡ
（２１下部の米の吸水を促進し、次いで炊飯ヒータ（４
）による加熱４渇を減少させるとともに、保温ヒータ（
６）による加熱昇温を増加させるので内鍋（２） ９−
上部の米の吸水がかなり促進され、最終的には保温ヒー
タ（６）のみによって加熱昇温を行なわせるので、内鍋
（２）上部の米の吸水が促進され、結局吸水工程終了時
には内鍋（ａの上部、下部共にむらなく吸水を行なった
状態であるから、以後の炊き−Ｆげ工程、沸騰工程、む
らし工程等を行なうことにより、ふっくらしたおいしい
ご飯を炊き上げることができる。If the power applied to the rice cooking heater (4) and the warming heater (6) in the water absorption process is controlled as described above, at the beginning of the water absorption process, the rice and water in the lower part of the inner pot ('2J) can be As the temperature rises rapidly, the internal vA
(Promote water absorption of the rice at the bottom of 21, then use the rice cooker heater (4)
) to reduce thirst, as well as heat retention heaters (
6) increases the heating temperature caused by the inner pot (2). ) The water absorption of the rice in the upper part is promoted, and at the end of the water absorption process, both the upper and lower parts of the inner pot (a) are in a state where water has been absorbed evenly. By doing this, you can cook fluffy and delicious rice.
尚、以上の実施例においては、吸水■稈を３つの温度範
囲に区分し、各温度区分毎に炊飯ヒータ（４）および保
温ヒータ（６）への印加電力を予め設定しているが、こ
の発明は上記の実施例に限定されるものではなく、例え
ば吸水工程時の、内鍋（２）下面の湯度上昇に伴なって
、炊飯ヒータ（４）および保温ヒータ（６）への印加電
力を連続的に変化させることができる他、この発明の要
旨を変更しない範囲内において種々の設計変更を施すこ
とができる。In the above embodiment, the water-absorbing culm is divided into three temperature ranges, and the power applied to the rice cooking heater (4) and the warming heater (6) is set in advance for each temperature range. The invention is not limited to the above-mentioned embodiments. For example, during the water absorption process, as the temperature of hot water on the lower surface of the inner pot (2) increases, electric power is applied to the rice cooking heater (4) and the heat-retaining heater (6). In addition to being able to change continuously, various design changes can be made within the scope of the invention.
く効果〉
以上のようにこの発明は、吸水工程遂行時に、炊飯ヒー
タへの印加ミノＪを最大電力より小さい電 １０−
力から徐々に減少さけ、保温ヒータへの印加電力を水入
電力に向って徐々に増加さセるようにしているので、内
８１１内における−１一部、下部間の温度バランスを最
適状態どし、米にむらなく吸水させ、ひいては、ふっく
らどしたＪ３いしいご飯を炊き−１げることかできると
いう特有の効果を秦りる。Effect> As described above, the present invention prevents the power applied to the rice cooking heater from gradually decreasing from a power smaller than the maximum power when carrying out the water absorption process, and directs the power applied to the warming heater toward the water input power. Since the temperature is gradually increased, the temperature balance between the -1 part and the lower part of the inner 811 is kept at the optimum state, allowing the rice to absorb water evenly, and by extension, cooking fluffy J3 delicious rice. It has the unique effect of being able to gain -1.
第１図はこの発明を実施する炊飯ジャーの一部切欠側面
図、第２図は電気的構成を示４図、第３図はフローチＶ
−ト。
（′２Ｊ・・・内鍋、（４）・・・炊飯ヒータ、（５）
・・・感熱素子、（６）・・・保温ヒータ、（２５）（
２８）・・・トライアック、Ｔ２７）（２９）・・・ヒ
ータ制御回路。
特許出願人 タイガー魔払瓶株式会社
１１−
区
沫
区
ヘ
リ
〉１Fig. 1 is a partially cutaway side view of a rice cooker embodying the present invention, Fig. 2 shows the electrical configuration, Fig. 4, and Fig. 3 show the flowchart V.
-t. ('2J...Inner pot, (4)...Rice cooking heater, (5)
...Thermal element, (6) ...Thermal heater, (25) (
28) Triac, T27) (29) Heater control circuit. Patent Applicant: Tiger Magic Bottle Co., Ltd. 11- Kumu Ku Heli〉1
Claims (1)
程等を行なってご飯を炊ぎ上げる炊飯方法において、吸
水工程開始当初は、炊飯ヒータおよび保温ヒータへの印
加電力を最大電力より小さい所定電力に設定し、内鍋内
の米および水の昇温に１ノたがって炊飯ヒータへの印加
電力を減少ざＵるどともに、保渇じ一タへの印加電力を
増加させることを特徴とする炊飯方法。 ２、 炊飯ヒータへの印加電力の減少、および保温ヒー
タへの印加電力の増加を段階的に行なわせる上記特許請
求の範囲第１項記載の炊飯方法。 ３、 吸水■稈終了時の温度として予め設定された温度
よりも低い所定温度に達した時点で炊飯ヒータへの印加
電力を零とづる」ニ記特許請求の範囲第１項又は第２項
記載の炊飯方法。 ４、 炊飯ヒータへの印加電力を零にした後、吸水■捏
終了時の温度として予め設定された温度に達するまでの
間、保温ヒータに最大電力を印加する上記特許請求の範
囲第３項記載の炊飯方法。[Claims] 1. In a rice cooking method in which rice is cooked by performing a water absorption process, a boiling process, a boiling process, a shading process, etc., at the beginning of the water absorption process, the water is not supplied to the rice cooking heater and the heat retention heater. The applied power is set to a predetermined power that is lower than the maximum power, and as the rice and water in the inner pot rise in temperature, the power applied to the rice cooking heater is reduced, and the power applied to the rice heater is reduced. A rice cooking method characterized by increasing electric power. 2. The rice cooking method according to claim 1, wherein the power applied to the rice cooking heater is decreased and the power applied to the heat retention heater is increased in stages. 3. Water absorption ■ The power applied to the rice-cooking heater is reduced to zero when the temperature reaches a predetermined temperature lower than the temperature preset as the temperature at the end of the culm.'' D. Claims 1 or 2 How to cook rice. 4. After the power applied to the rice cooking heater is reduced to zero, the maximum power is applied to the warming heater until the temperature reaches a preset temperature at the end of water absorption and kneading. How to cook rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59099928A JPS60241865A (en) | 1984-05-17 | 1984-05-17 | Rice cooking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59099928A JPS60241865A (en) | 1984-05-17 | 1984-05-17 | Rice cooking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60241865A true JPS60241865A (en) | 1985-11-30 |
| JPH0435166B2 JPH0435166B2 (en) | 1992-06-10 |
Family
ID=14260408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59099928A Granted JPS60241865A (en) | 1984-05-17 | 1984-05-17 | Rice cooking method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60241865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464314A (en) * | 1990-07-02 | 1992-02-28 | Matsushita Electric Ind Co Ltd | Rice cooker |
| WO1997015219A1 (en) * | 1995-10-23 | 1997-05-01 | Daewoo Electronics Co., Ltd. | Method of electric rice cooking kettle for uniformly cooking rice |
-
1984
- 1984-05-17 JP JP59099928A patent/JPS60241865A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464314A (en) * | 1990-07-02 | 1992-02-28 | Matsushita Electric Ind Co Ltd | Rice cooker |
| WO1997015219A1 (en) * | 1995-10-23 | 1997-05-01 | Daewoo Electronics Co., Ltd. | Method of electric rice cooking kettle for uniformly cooking rice |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435166B2 (en) | 1992-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |