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JP3570261B2 - Cooking device - Google Patents

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Publication number
JP3570261B2
JP3570261B2 JP35427498A JP35427498A JP3570261B2 JP 3570261 B2 JP3570261 B2 JP 3570261B2 JP 35427498 A JP35427498 A JP 35427498A JP 35427498 A JP35427498 A JP 35427498A JP 3570261 B2 JP3570261 B2 JP 3570261B2
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JP
Japan
Prior art keywords
temperature
cooking
output
detecting means
control
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.)
Expired - Fee Related
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JP35427498A
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Japanese (ja)
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JP2000175827A (en
Inventor
敏克 前田
昭久 仲野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP35427498A priority Critical patent/JP3570261B2/en
Publication of JP2000175827A publication Critical patent/JP2000175827A/en
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  • Control Of Resistance Heating (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、一般家庭で使用する発酵器、製パン器、餅つき器等の調理器に関するものである。
【0002】
【従来の技術】
調理物(酵母菌やパン生地等)を一定温度で加熱保温する発酵器、製パン器、餅つき器等の調理器があるが、図12に示すような構成の調理器の従来例について説明する。
【0003】
まず構成について説明する。本体1内には、外ケース2があり、この外ケース2内には加熱を行う加熱手段3と外ケース2内の温度を検知する温度検知手段4が取り付けられている。また、外ケース2内には、調理物をセットできる内ケース5があり、加熱手段3の加熱によって内ケース5内の調理物を保温する。調理中には、温度検知手段4の出力により制御手段6が制御を行い加熱手段3の加熱を行う。
【0004】
このような構成の調理器において、調理物と温度検知手段4とが離れているので、室温が低い場合には温度検知手段4が室温の影響で冷やされて実際の調理物の温度(外ケース2内の温度)より低く検知することがわかっている。この室温と調理物との関係を示したのが図13である。これは、温度検知手段4の温調温度を30℃にした場合の室温に対する調理物の温度を示している。そのために調理物の保温温度を室温に拘わらず一定にするためには、温度検知手段4の温調温度を室温によって変化させる必要があり、調理開始初期の室温により温調温度を決定していた。
【0005】
【発明が解決しようとする課題】
ここで、図14は調理物の温度を30℃に保つ場合の各部の温度と加熱手段の動作を示したもので、室温と温度検知手段の温度、調理物の温度とを調理開始からの経過時間でプロットしている。また、加熱手段のオン、オフを下にプロットしている。調理開始4時間後あたりから室温が15℃から23℃へ上昇していることを示しているが、調理開始初期の室温を15℃として温調温度を決定しているので、室温が変化すると図10に示す温度依存によって調理物の保温温度が変化してしまう。
【0006】
特に、酵母菌の発酵については、30℃付近で24時間保つ必要があり、この間に室温が変化する可能性は高く調理開始初期の温度によって室温補正をするだけでは、長時間の調理の間の室温変化に対して調理物の温度を一定に保つことができないという問題点を有していた。
【0007】
本発明は、上記従来の問題点を解決するもので、調理中の室温変化を推測し、推測した室温に併せて調理条件を変更して、その室温での最適な制御条件で制御を行うことを目的とする。
【0008】
【課題を解決するための手段】
上記、従来課題を解決するために本発明は、調理初期の温度検知手段の検知温度に従って制御温度を決定し、調理中の通電率検知手段の出力により室温変化を推測して制御条件を変更するようにしたものである。
【0009】
上記の構成により、調理中の室温変化に対応した温調温度で加熱制御を行うことができ、調理物の制御を室温変化に合わせて最適なものとすることができる。
【0010】
【発明の実施の形態】
本発明の請求項1に記載の発明は、本体内に設けられた加熱手段を有する外ケースと、前記外ケース内に設けられた調理物をセット出来る内ケースと、前記外ケース内の温度を検知する温度検知手段と、前記温度検知手段の温度により前記加熱手段を駆動する制御手段と、前記加熱手段の一定時間あたりの通電時間を測定する通電率検知手段と、調理開始初期の前記温度検知手段の出力を記憶する第1の記憶手段と、調理開始所定時間後の前記通電率検知手段の出力を記憶する第2の記憶手段とを備え、前記制御手段は、調理開始初期の前記温度検知手段の検知温度に従って温調温度を決定し「温調温度<前記温度検知手段の出力」なら前記加熱手段をオフし、それ以外なら前記加熱手段をオンするとともに、調理中の前記通電率検知手段の出力と、前記第1の記憶手段に記憶している温度と、前記第2の記憶手段に記憶している通電率と調理中の前記通電率検知手段により出力される通電率との差に従って前記温調温度を変更する調理器であり、調理中の室温変化を推測し、推測した室温に適した制御条件を設定することができる。
【0011】
また、加熱手段への通電率と調理開始所定時間後の加熱手段への通電率とを比較により調理中の室温変化を推測し、推測した室温に適した制御条件を加熱手段のばらつきの影響を受けずにより正確に設定することができる。
【0012】
【実施例】
(実施例1)
以下、本発明の第1の実施例を図1〜図3を参照して説明する。図1は本実施例の構成ブロック図、図2はフローチャート、図3は調理動作を示す図を表したものである。
【0013】
図1の構成について説明する。本体1内には、外ケース2があり、この外ケース2内には加熱を行う加熱手段3と外ケース2内の温度を検知する温度検知手段4が取り付けられている。また、外ケース2内には、調理物をセットできる内ケース5があり、加熱手段3の加熱によって内ケース5内の調理物を加熱する。また、加熱手段3の1時間あたりの通電時間を検知する通電率検知手段7がある。調理中には、制御手段6が通電率検知手段7の出力により温調温度を変更し、温度検知手段4の出力により加熱手段3を加熱し、保温制御を行う。
【0014】
次に、図2のフローチャートを用いてその動作を説明する。ステップ21で調理開始キーが押されるまで待つ。キーが押されたならば、ステップ22へ進み温度検知手段4の出力が10℃未満かどうか判断する。ここで10℃未満であればステップ23に進み温調温度を25℃に設定する。また10℃以上であればステップ24に進んで、今度は温度検知手段4の出力が20℃未満かどうか判断する。ここで20℃未満であればステップ25に進み温調温度を27.5℃に設定する。また20℃以上であればステップ26に進み温調温度を30℃に設定する。
【0015】
次に、ステップ27に進み、加熱手段通電デューティーを10%に設定する。ステップ28に進み、設定された温調温度と温度検知手段4の出力との比較を行い、「温調温度<温度検知手段4の出力」ならばステップ29に進み、加熱手段3をオフする。また、それ以外ならばステップ30に進み、加熱手段3を設定通電デューティー10%でオンする。
【0016】
次に、ステップ31に進み、調理開始2時間が経過するまで繰り返す。2時間を経過するとステップ32に進み、通電率検知手段7が通電率測定を開始する。ステップ33に進み、調理終了(本実施例では24時間経過後)したかどうかを判断して、調理終了していればステップ21に戻る。調理終了をしていなければステップ34に進み、「温調温度<温度検知手段4の出力」ならばステップ35に進み、加熱手段3をオフする。またそれ以外ならばステップ36に進み、加熱手段3を設定通電率10%でオンする。
【0017】
ステップ37で1時間あたりの通電時間の検知を終えるまで繰り返し、検知を終了したらステップ38に進む。ステップ38で通電率検知手段7の出力が150秒以上かどうか判断する。ここで150秒以上であれば、室温が10℃未満と判断してステップ39に進み、温調温度を25℃に再設定する。また150秒未満であれば、ステップ40に進み、今度は通電率検知手段7の出力が90秒以上かどうか判断する。ここで90秒以上であれば、室温が20℃未満と判断してステップ41に進み、温調温度を27.5℃に設定する。また90秒未満であれば、室温が20℃以上と判断してステップ42に進み、温調温度を30℃に設定する。以上の動作を調理終了するまで繰り返す。
【0018】
以上の動作における調理物の温度、温度検出手段の温度、室温、および加熱手段のオンオフ状況を図3のグラフで表している。室温の上昇によって温調温度が変更されアの部分で調理物の温度が30℃付近に補正されているのが分かる。
【0019】
このように、他に室温検知手段を持たずに加熱手段の通電率により調理中の室温を推測して、推測した室温により温調温度を最適に再設定して調理物の温度を略一定とすることができる。
【0020】
なお、室温の区分を本実施例では3区分で行っているがより多くの区分に分ける方が室温の影響をさらに受けにくくする。
【0021】
また、本実施例では、調理器について説明しているが自動製パン機のように発酵機能を有した調理器の場合、温調温度のみでなくモータの作動時間やヒータの通電時間等その他の制御条件を変更することもできる。
【0022】
(実施例2)
次に、本発明の第2の実施例を図1と図3、図4とを参照して説明する。図1は本実施例の構成ブロック図を表したものであり上記実施例と同じであるために説明を省略する。図3は上記実施例1の調理動作を示す図、図4はフローチャートを表したものである。
【0023】
まず、上記実施例の動作を表している図3のグラフにおいて、温調温度を変更した直後においては、温度検知手段4(外ケース2内)の温度が安定するまでにしばらく時間がかかる(イの部分)。よって、その間に通電率の検知を行った場合には、誤検知となって正しい温調温度にならないという恐れがあった。そこで、本実施例では次のようなものとした。
【0024】
図4のフローチャートを用いて本実施例の動作を説明する。図4のフローチャートでステップ42までは上記実施例と同様であるため説明を省略する。ステップ43で調理終了(本実施例では24時間経過後)したかどうかを判断して、調理終了していればステップ21に戻る。調理終了をしていなければステップ44に進み、「温調温度<温度検知手段4の出力」ならばステップ45に進み、加熱手段3をオフする。また、それ以外ならばステップ46に進み、加熱手段3を設定通電デューティー10%でオンする。ステップ47で前回の通電率測定終了後1時間経過するまで通電率測定は行わないで、設定された温調温度での温度制御を繰り返す。1時間経過するとステップ32に戻り調理終了するまで繰り返す。
【0025】
このように、他に室温検知手段を持たずに加熱手段の通電率変化によって調理中の室温を推測する時に、温調温度を変更した直後の通電率の不安定な時間を避けて通電率測定をすることにより、推測した室温がより正確なものとなり、温調温度を最適に設定することができる。
【0026】
なお、図4のフローチャートでは、通電率測定終了後、温調温度を変更していない場合でも通電率測定終了後1時間経過した後で通電率測定開始しているが、温調温度を変更したときのみとしても同様の効果が得られる。
【0027】
(実施例3)
以下、本発明の第3の実施例を図5と図6とを参照して説明する。図5は本実施例の構成ブロック図、図6はフローチャートを表したものである。
【0028】
図5の構成について説明する。上記実施例とおなじ構成要素には同一の符号を付して説明を省略する。前回の測定した通電率検知手段7の出力を記憶する記憶手段8が備わっていて、調理中には制御手段6が調理中の通電率検知手段7の出力と記憶手段8の出力との差により温調温度を変更し、温度検知手段4の出力により加熱手段3を加熱し、保温制御を行う。
【0029】
図6のフローチャートを用いて動作を説明する。図6のフローチャートでステップ32までは上記実施例と同様であるため説明を省略する。ステップ51で「温調温度<温度検知手段4の出力」ならばステップ52に進み、加熱手段3をオフする。また、それ以外ならばステップ53に進み、加熱手段3を設定通電率でオンする。ステップ54で1時間あたりの通電時間の検知を終えるまで繰り返す。検知を終了したらステップ55に進む。ステップ55で通電率検知手段7の出力をYに記憶してステップ56に進み、通電率検知手段7が通電率測定を開始する。ステップ57に進み調理終了(本実施例では24時間経過後)したかどうかを判断して、調理終了していればステップ21に戻る。
【0030】
ステップ58に進み、「温調温度<温度検知手段4の出力」ならばステップ59に進み、加熱手段3をオフする。またそれ以外ならばステップ60に進み、加熱手段3を設定された通電率でオンする。ステップ61で1時間あたりの通電時間の検知を終えるまで繰り返し検知を終了したらステップ62に進む。ステップ62へ進み「通電率検知手段7の出力−Y」が20秒以上かどうか判断する。ここで20秒以上であればステップ63に進み室温が下がったと判断して温調温度を「温調温度−1℃」に再設定する。また−20秒未満であればステップ64に進んで、今度は−20秒未満かどうか判断する。ここで−20秒未満であればステップ65に進み、室温が上がったと判断し温調温度を「温調温度+1℃」に再設定する。また−20秒以上であればステップ56に戻り室温変化が小さいとして温調温度を変更しない。
【0031】
ステップ66で調理終了(本実施例では24時間経過後)したかどうかを判断して、調理終了していればステップ21に戻る。調理終了をしていなければステップ67に進み、「温調温度<温度検知手段4の出力」ならばステップ68に進み、加熱手段3をオフする。また、それ以外ならばステップ69に進み加熱手段3を設定通電デューティー10%でオンする。ステップ70で前回の通電率測定終了後1時間経過するまで通電率測定は行わないで、設定された温調温度での温度制御を繰り返す。1時間経過するとステップ32に戻り調理終了するまで繰り返す。
【0032】
このように、今回の加熱手段の通電率と前回の加熱手段の通電率との比較により調理中の室温変化を推測することで、同一商品でも生じる加熱手段のばらつきに影響されることなく、室温変化を推測することできる。よって、温調温度を室温に合わせて再設定することにより、調理物の温度を略一定とすることができる。
【0033】
(実施例4)
以下、本発明の第4の実施例を図7と図8とを参照して説明する。図7は本実施例の構成ブロック図、図8はフローチャートを表したものである。
【0034】
図7の構成について説明する。上記実施例とおなじ構成要素には同一の符号を付して説明を省略する。調理開始初期の温度検知手段4の出力を記憶する第1の記憶手段9と、調理開始2時間後から1時間の通電率検知手段10の出力を記憶する第2の記憶手段10とが備わっていて、制御手段6は、調理中の通電率検知手段7と第1の記憶手段9、第2の記憶手段10により温調温度を変更し、温度検知手段4の出力により加熱手段3を加熱し、保温制御を行う。
【0035】
次に、図8のフローチャートを用いてその動作を説明する。ステップ81で調理開始キーが押されるまで待つ。キーが押されたならば、ステップ82へ進み温度検知手段4の出力をXに記憶してステップ83へ進む。ステップ83で温度検知手段4の出力が10℃未満かどうか判断する。ここで10℃未満であればステップ84に進み、温調温度を25℃に設定する。また10℃以上であればステップ85に進んで、今度は温度検知手段4の出力が20℃未満かどうか判断する。ここで20℃未満であればステップ86に進み温調温度を27.5℃に設定する。また20℃以上であればステップ87に進み、温調温度を30℃に設定する。
【0036】
次に、ステップ88に進み加熱手段通電デューティーを10%に設定する。ステップ89に進み、設定された温調温度と温度検知手段4の出力との比較を行い、「温調温度<温度検知手段4の出力」ならばステップ90に進み加熱手段3をオフする。またそれ以外ならばステップ91に進み、加熱手段3を設定通電デューティー10%でオンする。ステップ92に進み、調理開始2時間が経過するまで繰り返す。2時間を経過(温度検知手段4の出力が安定)するとステップ93に進み、通電率検知手段7が通電率測定を開始する。ステップ94に進み、「温調温度<温度検知手段4の出力」ならばステップ95に進み、加熱手段3をオフする。また、それ以外ならばステップ96に進み加熱手段3を設定通電デューティー10%でオンする。ステップ97で1時間あたりの通電時間の検知を終えるまで繰り返す。検知を終了したらステップ98に進む。ステップ98で通電率検知手段7の出力をYに記憶してステップ99に進み、通電率検知手段7が通電率測定を開始する。ステップ100に進み、調理終了(本実施例では24時間経過後)したかどうかを判断して調理終了していればステップ81に戻る。ステップ101に進み、「温調温度<温度検知手段4の出力」ならばステップ102に進み、加熱手段3をオフする。またそれ以外ならばステップ103に進み、加熱手段3を設定通電デューティー10%でオンする。ステップ104で1時間あたりの通電時間の検知を終えるまで繰り返し検知を終了したらステップ105に進む。ステップ105は、制御条件の再設定処理でこの処理により制御条件を設定する。ステップ106で調理終了(本実施例では24時間経過後)したかどうかを判断して、調理終了していればステップ81に戻る。調理終了をしていなければステップ107に進み、「温調温度<温度検知手段4の出力」ならばステップ108に進み加熱手段3をオフする。また、それ以外ならばステップ109に進み加熱手段3を設定通電デューティー10%でオンする。ステップ110で前回の通電率測定終了後1時間経過するまで通電率測定は行わないで、設定された温調温度での温度制御を繰り返す。1時間経過するとステップ99に戻り調理終了するまで繰り返す。
【0037】
次に、(表1)〜(表3)を用いてステップ105の制御条件の再設定処理を説明する。まず、X(調理開始初期の温度検知手段4の出力)が10℃未満の場合には、表1を参照して温調温度を決定する。(表1)で「通電率検知手段7の出力−Y(調理開始2時間後から1時間後の通電率検知手段7の出力)」が−30秒以上の場合には、室温を10℃未満と判断して温調温度を25℃に再設定する。
【0038】
また−60秒以上〜−30秒未満であれば、今度は室温が10℃以上〜20℃未満と判断して温調温度を27.5℃に再設定する。−60秒未満であれば室温が20℃以上と判断して温調温度を30℃に設定する。
【0039】
【表1】

Figure 0003570261
【0040】
他にXが10℃以上〜20℃未満であれば(表2)を使用し、またXが20℃以上であれば(表3)を使用して温調温度を再設定する。
【0041】
【表2】
Figure 0003570261
【0042】
【表3】
Figure 0003570261
【0043】
このように、今回の加熱手段の通電率と調理初期安定時の加熱手段の通電率との比較により調理中の室温変化を推測することで、同一商品でも生じる加熱手段のばらつきに影響されることなく、室温変化を正確に推測することできる。よって、温調温度を室温に合わせて再設定することにより、調理物の温度を略一定とすることができる。
【0044】
(実施例5)
以下、本発明の第5の実施例を図9〜図11を参照して説明する。図9は本実施例の構成ブロック図、図10は調理物を30℃に加熱保温した場合の電源電圧の違いによる室温と1時間毎の通電時間(通電率)とを示した図、図11はフローチャートを表したものである。
【0045】
図9の構成について説明する。上記実施例とおなじ構成要素には同一の符号を付して説明を省略する。商用電源の電圧検知をする電源電圧検知手段11があり調理中には、制御手段6が通電率検知手段7と、電源電圧検知手段11との出力により温調温度を変更し、温度検知手段4の出力により加熱手段3を加熱し、保温制御を行う。
【0046】
次に、図10において1時間毎の通電時間が5℃付近では電源電圧によって差が大きくなっているのが分かる。ここで、室温が5℃付近では電源電圧の変動によって通電率が変動し、室温の推定を誤検知してしまい正しい温調温度に設定できないという恐れがあり電源電圧変動による補正が必要だった。
【0047】
図11のフローチャートを用いて動作を説明する。図11のフローチャートでステップ37までは上記実施例1と同様であるため説明を省略する。ステップ111は、制御条件の再設定処理でこの処理により制御条件を設定する。ステップ112で調理終了(本実施例では24時間経過後)したかどうかを判断して調理終了していればステップ21に戻る。調理終了をしていなければステップ113に進み、「温調温度<温度検知手段4の出力」ならばステップ114に進み、加熱手段3をオフる。また、それ以外ならばステップ115に進み、加熱手段3を設定通電率10%でオンする。ステップ116で前回の通電率測定終了後1時間経過するまで通電率測定は行わないで、設定された温調温度での温度制御を繰り返す。1時間経過するとステップ32に戻り調理終了するまで繰り返す。
【0048】
次に、(表4)〜(表6)を用いてステップ111の制御条件の再設定処理を説明する。まず、電源電圧検知手段11の出力が97V未満の場合には、(表4)を参照して温調温度を決定する。(表4)で通電率検知手段7の出力が170秒以上の場合には、室温を10℃未満と判断して温調温度を25℃に再設定する。また100秒以上〜170秒未満であれば今度は室温が10℃以上〜20℃未満と判断して温調温度を27.5℃に再設定する。100秒未満であれば室温が20℃以上と判断して温調温度を30℃に設定する。
【0049】
【表4】
Figure 0003570261
【0050】
同じように電源電圧検知手段11の出力が97V以上〜103V未満の場合には、(表5)を使用し、また電源電圧検知手段11の出力が103V以上であれば(表6)を使用して温調温度を再設定する。
【0051】
【表5】
Figure 0003570261
【0052】
【表6】
Figure 0003570261
【0053】
このように、電源電圧の検知によって加熱手段の通電率を条件区分することで、電源電圧変動の影響を受けずに正しく室温変化を推定することができる。よって、温調温度を室温に合わせて再設定することにより、調理物の温度を略一定とすることができる。
【0054】
【発明の効果】
請求項1記載の発明によれば、他に室温検知手段を持たずに加熱手段の通電率により調理中の室温を推測して、推測した室温により温調温度を最適に再設定して調理物の温度を略一定とすることができるという効果が得られる。
【0055】
また、加熱手段の通電率と調理初期安定時の加熱手段の通電率との比較により調理中の室温変化を推測することで、同一商品でも生じる加熱手段のばらつきに影響されることなく、室温変化を正確に推測することできる。よって、温調温度を室温に合わせて再設定することにより、調理物の温度を略一定とすることができるという効果が得られる。
【図面の簡単な説明】
【図1】本発明の第1と第2の実施例における調理器を示すブロック図
【図2】本発明の第1の実施例における調理器の制御手段の動作を示すフローチャート
【図3】本発明の第1と第2の実施例における調理器の調理中の動作を示す図
【図4】本発明の第2の実施例における調理器の制御手段の動作を示すフローチャート
【図5】本発明の第3の実施例における調理器を示すブロック図
【図6】同、調理器の制御手段の動作を示すフローチャート
【図7】本発明の第4の実施例における調理器を示すブロック図
【図8】同、調理器の制御手段の動作を示すフローチャート
【図9】本発明の第5の実施例における調理器を示すブロック図
【図10】同、調理器の調理物を30℃に加熱保温した場合の商用電源電圧の違いによる室温と通電率とを示した図
【図11】同、調理器の制御手段の動作を示すフローチャート
【図12】従来の調理器を示すブロック図
【図13】同、調理器の室温に対する調理物の温度を示す図
【図14】同、調理器の調理中の動作を示す図
【符号の説明】
1 本体
2 外ケース
3 加熱手段
4 温度検知手段
5 内ケース
6 制御手段
7 通電率検知手段
8 記憶手段
9 第1の記憶手段
10 第2の記憶手段
11 電源電圧検知手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cooking device such as a fermenter, a bread maker, and a rice cake sticker used in ordinary households.
[0002]
[Prior art]
There is a cooker such as a fermenter, a bread maker, and a rice cake sticker that heats and keeps a cooked product (such as yeast or bread dough) at a constant temperature. A conventional cooker having a configuration as shown in FIG. 12 will be described. .
[0003]
First, the configuration will be described. Inside the main body 1, there is an outer case 2, in which a heating means 3 for heating and a temperature detecting means 4 for detecting the temperature in the outer case 2 are attached. Further, inside the outer case 2, there is an inner case 5 on which food can be set, and the heating of the heating means 3 keeps the food in the inner case 5 warm. During cooking, the control unit 6 controls the output of the temperature detection unit 4 to heat the heating unit 3.
[0004]
In the cooking device having such a configuration, since the food and the temperature detecting means 4 are separated from each other, when the room temperature is low, the temperature detecting means 4 is cooled by the influence of the room temperature and the actual temperature of the food (the outer case) is reduced. 2). FIG. 13 shows the relationship between the room temperature and the food. This indicates the temperature of the food with respect to the room temperature when the temperature control temperature of the temperature detecting means 4 is 30 ° C. Therefore, in order to keep the temperature of the cooked food constant regardless of the room temperature, it is necessary to change the temperature control temperature of the temperature detecting means 4 according to the room temperature, and the temperature control temperature is determined based on the room temperature at the beginning of cooking. .
[0005]
[Problems to be solved by the invention]
Here, FIG. 14 shows the temperature of each part and the operation of the heating means when the temperature of the food is kept at 30 ° C. The room temperature, the temperature of the temperature detection means, and the temperature of the food are shown from the start of cooking. It is plotted against time. Also, ON and OFF of the heating means are plotted below. It shows that the room temperature has risen from 15 ° C. to 23 ° C. around 4 hours after the start of cooking. Due to the temperature dependence shown in FIG. 10, the warming temperature of the food changes.
[0006]
In particular, for fermentation of yeast, it is necessary to keep the temperature around 30 ° C. for 24 hours. During this time, there is a high possibility that the room temperature will change. There was a problem that the temperature of the cooked food could not be kept constant against a change in room temperature.
[0007]
The present invention solves the above-mentioned conventional problems, and estimates a change in room temperature during cooking, changes cooking conditions in accordance with the estimated room temperature, and performs control under optimum control conditions at that room temperature. With the goal.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned conventional problems, the present invention determines a control temperature in accordance with a temperature detected by a temperature detecting means at an initial stage of cooking, and estimates a change in room temperature by an output of a duty ratio detecting means during cooking to change a control condition. It is like that.
[0009]
According to the above configuration, heating control can be performed at a temperature-controlled temperature corresponding to a change in room temperature during cooking, and control of the cooked food can be optimized according to the change in room temperature.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention provides an outer case having a heating means provided in a main body, an inner case provided with food in the outer case, and a temperature in the outer case. Temperature detecting means for detecting, control means for driving the heating means according to the temperature of the temperature detecting means, energization rate detecting means for measuring an energizing time per fixed time of the heating means, and the temperature detection at the beginning of cooking start First storage means for storing the output of the means, and second storage means for storing the output of the duty ratio detecting means after a predetermined time from the start of cooking , wherein the control means detects the temperature at the beginning of cooking. The temperature control temperature is determined according to the temperature detected by the means, and if "temperature control temperature <output of the temperature detection means", the heating means is turned off; otherwise, the heating means is turned on, and the conduction rate detection means during cooking is turned on. of And power, and the temperature stored in said first storage means, the difference between the duty factor which is output by the duty factor detecting means during cooking and duty factor stored in said second storage means thus The cooking device changes the temperature control temperature, and can estimate a change in room temperature during cooking, and can set a control condition suitable for the estimated room temperature.
[0011]
Further, infers room temperature change in the cooking by comparing the duty ratio to the heating means after the duty ratio and the cooking start a predetermined time to the pressurized heat means, the influence of the variation of the heating means controlled conditions suitable to guessed at room temperature It can be set more accurately without receiving.
[0012]
【Example】
(Example 1)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram illustrating the configuration of the present embodiment, FIG. 2 is a flowchart, and FIG. 3 is a diagram illustrating a cooking operation.
[0013]
The configuration of FIG. 1 will be described. Inside the main body 1, there is an outer case 2, in which a heating means 3 for heating and a temperature detecting means 4 for detecting the temperature in the outer case 2 are attached. Further, inside the outer case 2, there is an inner case 5 on which the food can be set, and the food in the inner case 5 is heated by the heating means 3. Further, there is an energization rate detection unit 7 for detecting an energization time per hour of the heating unit 3. During cooking, the control means 6 changes the regulated temperature by the output of the duty ratio detecting means 7 and heats the heating means 3 by the output of the temperature detecting means 4 to perform the heat retention control.
[0014]
Next, the operation will be described with reference to the flowchart of FIG. In step 21, the process waits until the cooking start key is pressed. If the key is depressed, the routine proceeds to step 22, where it is determined whether the output of the temperature detecting means 4 is lower than 10 ° C. If the temperature is lower than 10 ° C., the process proceeds to step 23, and the temperature control temperature is set to 25 ° C. If it is equal to or higher than 10 ° C., the process proceeds to step 24, and it is determined whether the output of the temperature detecting means 4 is lower than 20 ° C. If the temperature is lower than 20 ° C., the process proceeds to step 25, and the temperature control temperature is set to 27.5 ° C. If the temperature is equal to or higher than 20 ° C., the process proceeds to step 26, and the temperature control temperature is set to 30 ° C.
[0015]
Next, the process proceeds to a step 27, wherein the heating unit energization duty is set to 10%. Proceeding to step 28, the set temperature control temperature is compared with the output of the temperature detecting means 4, and if "temperature control temperature <output of the temperature detecting means 4", the process proceeds to step 29 and the heating means 3 is turned off. Otherwise, the process proceeds to step 30, where the heating means 3 is turned on at the set energization duty of 10%.
[0016]
Next, the process proceeds to step 31 and is repeated until two hours from the start of cooking have elapsed. When two hours have elapsed, the routine proceeds to step 32, where the duty ratio detection means 7 starts measuring the duty ratio. The process proceeds to step 33, where it is determined whether or not cooking has been completed (after 24 hours have elapsed in this embodiment). If cooking has been completed, the process returns to step 21. If the cooking has not been completed, the process proceeds to step 34, and if "temperature control temperature <output of temperature detecting means 4", the process proceeds to step 35, where heating means 3 is turned off. Otherwise, the process proceeds to step 36, where the heating means 3 is turned on at the set duty ratio of 10%.
[0017]
It repeats until the detection of the energization time per hour is completed in step 37, and proceeds to step 38 when the detection is completed. In step 38, it is determined whether or not the output of the duty ratio detecting means 7 is 150 seconds or more. If the time is 150 seconds or more, it is determined that the room temperature is less than 10 ° C., and the process proceeds to step 39, and the temperature control temperature is reset to 25 ° C. If it is less than 150 seconds, the process proceeds to step 40, and it is determined whether the output of the duty ratio detecting means 7 is 90 seconds or more. If it is 90 seconds or longer, it is determined that the room temperature is lower than 20 ° C., and the process proceeds to step 41, and the temperature control temperature is set to 27.5 ° C. If it is less than 90 seconds, it is determined that the room temperature is equal to or higher than 20 ° C., and the process proceeds to step 42, where the temperature control temperature is set to 30 ° C. The above operation is repeated until cooking is completed.
[0018]
FIG. 3 is a graph showing the temperature of the food, the temperature of the temperature detecting means, the room temperature, and the on / off state of the heating means in the above operation. It can be seen that the temperature control temperature is changed by the rise of the room temperature, and the temperature of the cooked food is corrected to around 30 ° C. in the area of A.
[0019]
As described above, the room temperature during cooking is estimated by the energization rate of the heating unit without having the room temperature detecting unit, and the temperature of the cooked food is set to be substantially constant by optimally resetting the temperature control temperature based on the estimated room temperature. can do.
[0020]
In this embodiment, the room temperature is divided into three sections. However, dividing into more sections makes the influence of the room temperature more difficult.
[0021]
Further, in the present embodiment, the cooking device is described. However, in the case of a cooking device having a fermentation function such as an automatic bread maker, not only the temperature control temperature but also the operation time of the motor, the power supply time of the heater, and the like. Control conditions can also be changed.
[0022]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIG. 1, FIG. 3, and FIG. FIG. 1 shows a block diagram of the configuration of the present embodiment, which is the same as the above-described embodiment, and will not be described. FIG. 3 is a view showing the cooking operation of the first embodiment, and FIG. 4 is a flowchart.
[0023]
First, in the graph of FIG. 3 showing the operation of the above embodiment, immediately after the temperature adjustment temperature is changed, it takes a while until the temperature of the temperature detecting means 4 (in the outer case 2) is stabilized. Part). Therefore, if the detection of the duty ratio is performed during that time, there is a risk that an incorrect detection will be made and the temperature will not be adjusted correctly. Therefore, in the present embodiment, the following is performed.
[0024]
The operation of this embodiment will be described with reference to the flowchart of FIG. In the flowchart of FIG. 4, steps up to step 42 are the same as those in the above-described embodiment, and a description thereof will be omitted. In step 43, it is determined whether or not cooking has been completed (after 24 hours have elapsed in this embodiment). If cooking has been completed, the process returns to step 21. If the cooking has not been completed, the process proceeds to step 44, and if "temperature-regulated temperature <output of temperature detecting unit 4", the process proceeds to step 45, where heating unit 3 is turned off. Otherwise, the process proceeds to step 46, where the heating means 3 is turned on at the set energization duty of 10%. In step 47, the temperature control at the set temperature control temperature is repeated without conducting the power ratio measurement until one hour has elapsed after the end of the previous power ratio measurement. After one hour, the process returns to step 32 and is repeated until cooking is completed.
[0025]
Thus, when estimating the room temperature during cooking by changing the duty ratio of the heating means without having other room temperature detection means, avoiding the unstable time of the duty ratio immediately after changing the temperature control temperature, measuring the duty ratio By doing, the estimated room temperature becomes more accurate, and the adjusted temperature can be set optimally.
[0026]
In addition, in the flowchart of FIG. 4, after the end of the duty ratio measurement, the duty ratio measurement is started one hour after the end of the duty ratio measurement even if the temperature control temperature is not changed. The same effect can be obtained only at the time.
[0027]
(Example 3)
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a configuration block diagram of the present embodiment, and FIG. 6 is a flowchart.
[0028]
The configuration of FIG. 5 will be described. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. A storage means 8 for storing the output of the duty ratio detecting means 7 measured last time is provided, and the control means 6 determines the difference between the output of the duty ratio detecting means 7 during cooking and the output of the storage means 8 during cooking. The temperature control temperature is changed, the heating means 3 is heated by the output of the temperature detecting means 4, and the heat retention control is performed.
[0029]
The operation will be described with reference to the flowchart of FIG. In the flowchart of FIG. 6, steps up to step 32 are the same as those in the above-described embodiment, and a description thereof will be omitted. If it is determined in step 51 that "temperature control temperature <output of temperature detecting means 4", the process proceeds to step 52, where the heating means 3 is turned off. Otherwise, the process proceeds to step 53, where the heating means 3 is turned on at the set duty ratio. This is repeated until the detection of the energizing time per hour is completed in step 54. Upon completion of the detection, the process proceeds to a step 55. In step 55, the output of the duty ratio detecting means 7 is stored as Y, and the routine proceeds to step 56, where the duty ratio detecting means 7 starts measuring the duty ratio. The process proceeds to step 57 to determine whether or not cooking has been completed (after 24 hours have elapsed in this embodiment). If cooking has been completed, the process returns to step 21.
[0030]
Proceeding to step 58, if "temperature regulation temperature <output of temperature detecting means 4", proceeding to step 59, the heating means 3 is turned off. Otherwise, the process proceeds to step 60, where the heating means 3 is turned on at the set duty ratio. When the detection is repeatedly performed until the detection of the energizing time per hour is completed in step 61, the process proceeds to step 62. Proceeding to step 62, it is determined whether or not "output-Y of duty ratio detecting means 7" is equal to or longer than 20 seconds. If it is longer than 20 seconds, the process proceeds to step 63, where it is determined that the room temperature has dropped, and the temperature control temperature is reset to "temperature control temperature-1 ° C". If the time is less than -20 seconds, the process proceeds to step 64, and it is determined whether the time is less than -20 seconds. If it is less than -20 seconds, the process proceeds to step 65, where it is determined that the room temperature has risen, and the temperature control temperature is reset to "temperature control temperature + 1 ° C". If it is -20 seconds or more, the process returns to step 56, and the temperature change temperature is not changed because the change in room temperature is small.
[0031]
It is determined in step 66 whether cooking has been completed (after 24 hours have elapsed in this embodiment), and if cooking has been completed, the process returns to step 21. If the cooking has not been completed, the process proceeds to step 67, and if "the temperature regulation temperature <the output of the temperature detecting means 4", the process proceeds to step 68 and the heating means 3 is turned off. Otherwise, the routine proceeds to step 69, where the heating means 3 is turned on at the set energization duty of 10%. In step 70, the temperature control at the set temperature regulation temperature is repeated without conducting the power measurement until one hour has passed after the end of the previous power measurement. After one hour, the process returns to step 32 and is repeated until cooking is completed.
[0032]
As described above, by estimating the change in the room temperature during cooking by comparing the current supply rate of the current heating means with the current supply rate of the previous heating means, it is possible to obtain the room temperature without being affected by the variation of the heating means that occurs even with the same product. The change can be inferred. Therefore, the temperature of the cooked food can be made substantially constant by resetting the temperature control temperature to room temperature.
[0033]
(Example 4)
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a configuration block diagram of the present embodiment, and FIG. 8 is a flowchart.
[0034]
The configuration of FIG. 7 will be described. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. A first storage means 9 for storing the output of the temperature detection means 4 at the beginning of cooking and a second storage means 10 for storing the output of the duty ratio detection means 10 for one hour from two hours after the start of cooking. Then, the control means 6 changes the temperature regulation temperature by means of the duty ratio detection means 7 during cooking, the first storage means 9 and the second storage means 10, and heats the heating means 3 by the output of the temperature detection means 4. , And perform heat retention control.
[0035]
Next, the operation will be described with reference to the flowchart of FIG. In step 81, the process waits until the cooking start key is pressed. If the key is pressed, the routine proceeds to step 82, where the output of the temperature detecting means 4 is stored in X, and the routine proceeds to step 83. In step 83, it is determined whether the output of the temperature detecting means 4 is less than 10 ° C. If the temperature is lower than 10 ° C., the process proceeds to step 84, and the temperature control temperature is set to 25 ° C. If the temperature is equal to or higher than 10 ° C., the process proceeds to step 85, and it is determined whether the output of the temperature detecting means 4 is lower than 20 ° C. If the temperature is lower than 20 ° C., the routine proceeds to step 86, where the temperature control temperature is set to 27.5 ° C. If the temperature is equal to or higher than 20 ° C., the process proceeds to step 87, and the temperature control temperature is set to 30 ° C.
[0036]
Next, the routine proceeds to step 88, where the heating unit energization duty is set to 10%. Proceeding to step 89, a comparison is made between the set temperature regulation temperature and the output of the temperature detection means 4. If "temperature regulation temperature <output of the temperature detection means 4", then the procedure proceeds to step 90 where the heating means 3 is turned off. Otherwise, the process proceeds to step 91, where the heating means 3 is turned on at the set energization duty of 10%. Proceeding to step 92, the process is repeated until two hours have elapsed since the start of cooking. When two hours have elapsed (the output of the temperature detecting means 4 is stable), the routine proceeds to step 93, where the duty ratio detecting means 7 starts measuring the duty ratio. Proceeding to step 94, if "temperature regulation temperature <output of temperature detecting means 4", proceeding to step 95, the heating means 3 is turned off. Otherwise, the process proceeds to step 96, where the heating means 3 is turned on at the set energization duty of 10%. This is repeated until the detection of the energizing time per hour in step 97 is completed. When the detection is completed, the process proceeds to step 98. In step 98, the output of the duty ratio detecting means 7 is stored as Y, and the routine proceeds to step 99, where the duty ratio detecting means 7 starts measuring the duty ratio. Proceeding to step 100, it is determined whether or not cooking has been completed (after 24 hours have elapsed in this embodiment). If cooking has been completed, processing returns to step 81. Proceeding to step 101, if "temperature control temperature <output of temperature detecting means 4", proceeding to step 102, the heating means 3 is turned off. Otherwise, the process proceeds to step 103, where the heating means 3 is turned on at the set energization duty of 10%. If the detection is repeatedly completed until the detection of the energization time per hour is completed in step 104, the process proceeds to step 105. Step 105 is a control condition resetting process in which control conditions are set by this process. It is determined in step 106 whether cooking has been completed (after 24 hours have elapsed in this embodiment), and if cooking has been completed, processing returns to step 81. If the cooking has not been completed, the process proceeds to step 107, and if "temperature-regulated temperature <output of temperature detecting unit 4", the process proceeds to step 108 to turn off the heating unit 3. Otherwise, the routine proceeds to step 109, where the heating means 3 is turned on at the set energization duty of 10%. In step 110, the temperature control at the set temperature control temperature is repeated without conducting the power measurement until one hour has passed since the end of the previous power measurement. After one hour, the process returns to step 99 and is repeated until cooking is completed.
[0037]
Next, the control condition resetting process of step 105 will be described using (Table 1) to (Table 3). First, when X (the output of the temperature detection means 4 at the beginning of cooking) is less than 10 ° C., the temperature control temperature is determined with reference to Table 1. In the case where “output of the duty ratio detecting means 7 −Y (output of the duty ratio detecting means 7 from 2 hours to 1 hour after the start of cooking)” in Table 1 is −30 seconds or more, the room temperature is lower than 10 ° C. And reset the temperature control temperature to 25 ° C.
[0038]
If it is not shorter than -60 seconds and shorter than -30 seconds, it is determined that the room temperature is not lower than 10C and lower than 20C, and the temperature control temperature is reset to 27.5C. If it is shorter than -60 seconds, the room temperature is determined to be 20 ° C. or higher, and the temperature control temperature is set to 30 ° C.
[0039]
[Table 1]
Figure 0003570261
[0040]
If X is 10 ° C. or more and less than 20 ° C., use (Table 2). If X is 20 ° C. or more, use (Table 3) to reset the temperature control temperature.
[0041]
[Table 2]
Figure 0003570261
[0042]
[Table 3]
Figure 0003570261
[0043]
As described above, by estimating the room temperature change during cooking by comparing the current supply rate of the heating means with the current supply rate of the heating means at the initial stage of cooking, it is possible to be influenced by the variation of the heating means that occurs even with the same product. And the change in room temperature can be accurately estimated. Therefore, the temperature of the cooked food can be made substantially constant by resetting the temperature control temperature to room temperature.
[0044]
(Example 5)
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 9 is a block diagram showing the configuration of the present embodiment, and FIG. 10 is a diagram showing a room temperature and an energizing time (an energizing rate) per hour depending on a difference in power supply voltage when the food is heated and kept at 30 ° C. Represents a flowchart.
[0045]
The configuration of FIG. 9 will be described. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. There is a power supply voltage detecting means 11 for detecting the voltage of the commercial power supply, and during cooking, the control means 6 changes the regulated temperature by the outputs of the duty ratio detecting means 7 and the power supply voltage detecting means 11, and The heating means 3 is heated by the output of, and the heat retention control is performed.
[0046]
Next, in FIG. 10, it can be seen that the difference increases with the power supply voltage when the energizing time every hour is around 5 ° C. Here, when the room temperature is around 5 ° C., the duty ratio fluctuates due to the fluctuation of the power supply voltage, and there is a possibility that the estimation of the room temperature is erroneously detected and the temperature cannot be set to the correct temperature regulation temperature.
[0047]
The operation will be described with reference to the flowchart of FIG. In the flowchart of FIG. 11, steps up to step 37 are the same as those in the first embodiment, and a description thereof will be omitted. Step 111 is a control condition resetting process in which the control condition is set by this process. In step 112, it is determined whether or not cooking has been completed (after 24 hours have elapsed in this embodiment). If cooking has been completed, the process returns to step 21. If the cooking has not been completed, the process proceeds to step 113, and if “temperature-regulated temperature <output of temperature detecting unit 4”, the process proceeds to step 114, and the heating unit 3 is turned off. Otherwise, the process proceeds to step 115, where the heating means 3 is turned on at the set duty ratio of 10%. In step 116, the temperature control at the set temperature regulation temperature is repeated without conducting the power rate measurement until one hour has passed after the end of the previous power rate measurement. After one hour, the process returns to step 32 and is repeated until cooking is completed.
[0048]
Next, the control condition resetting process of step 111 will be described with reference to (Table 4) to (Table 6). First, when the output of the power supply voltage detecting means 11 is less than 97 V, the control temperature is determined with reference to (Table 4). If the output of the duty ratio detecting means 7 is equal to or longer than 170 seconds in Table 4, the room temperature is determined to be less than 10 ° C., and the temperature control temperature is reset to 25 ° C. If it is 100 seconds or more and less than 170 seconds, the room temperature is determined to be 10 ° C. or more and less than 20 ° C., and the temperature control temperature is reset to 27.5 ° C. If it is less than 100 seconds, the room temperature is determined to be 20 ° C. or higher, and the temperature control temperature is set to 30 ° C.
[0049]
[Table 4]
Figure 0003570261
[0050]
Similarly, when the output of the power supply voltage detecting means 11 is 97 V or more and less than 103 V, (Table 5) is used, and when the output of the power supply voltage detecting means 11 is 103 V or more, (Table 6) is used. Reset the temperature.
[0051]
[Table 5]
Figure 0003570261
[0052]
[Table 6]
Figure 0003570261
[0053]
In this way, by classifying the duty ratio of the heating means by detecting the power supply voltage, it is possible to correctly estimate the change in room temperature without being affected by the power supply voltage fluctuation. Therefore, the temperature of the cooked food can be made substantially constant by resetting the temperature control temperature to room temperature.
[0054]
【The invention's effect】
According to the invention described in claim 1, the room temperature during cooking is estimated based on the duty ratio of the heating unit without any other room temperature detecting unit, and the temperature control temperature is optimally reset based on the estimated room temperature to cook the food. Can be made substantially constant.
[0055]
Also, by estimating the room temperature change during cooking by comparing the power supply rate of the heating means and the power supply rate of the heating means at the beginning of the cooking stabilization, the room temperature change is not affected by the variation of the heating means even with the same product. Can be accurately inferred. Therefore, by resetting the temperature control temperature according to the room temperature, it is possible to obtain an effect that the temperature of the food can be kept substantially constant.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a cooking device according to first and second embodiments of the present invention; FIG. 2 is a flowchart showing an operation of a control unit of the cooking device according to the first embodiment of the present invention; FIG. 4 is a diagram showing an operation during cooking of the cooker according to the first and second embodiments of the present invention. FIG. 4 is a flowchart showing an operation of a control unit of the cooker according to a second embodiment of the present invention. FIG. 6 is a block diagram showing an operation of a control unit of the cooker according to the third embodiment of the present invention; FIG. 7 is a block diagram showing a cooker according to a fourth embodiment of the present invention; 8 is a flowchart showing the operation of the control means of the cooker. FIG. 9 is a block diagram showing the cooker in the fifth embodiment of the present invention. FIG. Room temperature and duty ratio due to differences in commercial power supply voltage FIG. 11 is a flowchart showing the operation of the control means of the cooking device. FIG. 12 is a block diagram showing a conventional cooking device. FIG. 13 is a diagram showing the temperature of the food with respect to the room temperature of the cooking device. FIG. 14 is a diagram showing an operation of the cooking device during cooking.
DESCRIPTION OF SYMBOLS 1 Main body 2 Outer case 3 Heating means 4 Temperature detecting means 5 Inner case 6 Control means 7 Conductivity detecting means 8 Storage means 9 First storing means 10 Second storing means 11 Power supply voltage detecting means

Claims (1)

本体内に設けられた加熱手段を有する外ケースと、前記外ケース内に設けられた調理物をセット出来る内ケースと、前記外ケース内の温度を検知する温度検知手段と、前記温度検知手段の温度により前記加熱手段を駆動する制御手段と、前記加熱手段の一定時間あたりの通電時間を測定する通電率検知手段と、調理開始初期の前記温度検知手段の出力を記憶する第1の記憶手段と、調理開始所定時間後の前記通電率検知手段の出力を記憶する第2の記憶手段とを備え、前記制御手段は、調理開始初期の前記温度検知手段の検知温度に従って温調温度を決定し「温調温度<前記温度検知手段の出力」なら前記加熱手段をオフし、それ以外なら前記加熱手段をオンするとともに、調理中の前記通電率検知手段の出力と、前記第1の記憶手段に記憶している温度と、前記第2の記憶手段に記憶している通電率と調理中の前記通電率検知手段により出力される通電率との差に従って前記温調温度を変更する調理器。An outer case having heating means provided in the main body, an inner case capable of setting a food provided in the outer case, a temperature detecting means for detecting a temperature in the outer case, and a temperature detecting means. Control means for driving the heating means according to the temperature, energization rate detection means for measuring the energization time per fixed time of the heating means, and first storage means for storing the output of the temperature detection means at the beginning of cooking. A second storage unit that stores an output of the duty factor detection unit after a predetermined time from the start of cooking , wherein the control unit determines a temperature-regulated temperature according to the temperature detected by the temperature detection unit at the beginning of cooking. off the heating means if the output "of the regulated temperature <said temperature detecting means, as well as on the heating means if otherwise, storing an output of said duty ratio detecting means during cooking, in the first storage means And temperature and, cooker for changing the second difference thus the temperature control temperature of the duty factor which is output by the duty factor detecting means during cooking and duty ratio stored in the storage means.
JP35427498A 1998-12-14 1998-12-14 Cooking device Expired - Fee Related JP3570261B2 (en)

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