JPS63201430A - Electronically controlled cooker - Google Patents

Electronically controlled cooker

Info

Publication number
JPS63201430A
JPS63201430A JP3390687A JP3390687A JPS63201430A JP S63201430 A JPS63201430 A JP S63201430A JP 3390687 A JP3390687 A JP 3390687A JP 3390687 A JP3390687 A JP 3390687A JP S63201430 A JPS63201430 A JP S63201430A
Authority
JP
Japan
Prior art keywords
temperature
heating
time
detected
counting
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.)
Pending
Application number
JP3390687A
Other languages
Japanese (ja)
Inventor
Hiroyuki Uehashi
浩之 上橋
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP3390687A priority Critical patent/JPS63201430A/en
Publication of JPS63201430A publication Critical patent/JPS63201430A/en
Pending legal-status Critical Current

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Landscapes

  • Control Of High-Frequency Heating Circuits (AREA)
  • Electric Ovens (AREA)

Abstract

PURPOSE:To prevent overheating, by counting a drive time by a microwave oscillator during a primary heating stage, and by performing a secondary heating stage based on the counted time after the primary heating stage is completed. CONSTITUTION:When a heating by microwaves (HM) is started, a counter TM3 starts counting time (t) up. After that the heating is continued further and when the temperature (T) detected by a sensor 7 reaches a point 'a1' after that the temperature is always above a desired heating temperature 'T1' and it is continued for 5sec, the heating by microwaves is stopped and the counting by the counter TM3 is also stopped. Five more seconds elapsed after stopping and if the detected temperature is a temperature Tm that is lower than a secondary desired temperature T1', the heating by microwaves is proceeded for 5sec only. If the detected temperature is a temperature Tn that is lower than the desired temperature T1', the heating is further proceeded for 5 more seconds only, and a primary heating stage is completed (PSC) when the detected temperature becomes higher than the secondary desired temperature T1'. Next a secondary heating stage is performed by the time which is obtained by multiplying the driving time of a magnetron 1 counted by the counter TM3 by the heating time coefficient alpha proper to a food.

Description

【発明の詳細な説明】[Detailed description of the invention]

ビ〕 産業上の利用分野 本発明は、食品温度を検知し、斯る検知温度に基づいて
マイクロ波加熱を制御する電子制御式m理器に関する。 (ロ)従来の技術 この種調理器においては、加熱室にマイクロat供給し
てマイクロ波加熱しながら、加熱室外にるる温度検知器
例えば赤外線センチにて食品の温度を検知し、斯る検知
温度が所望温度に到趨するとU0熱を終了する工うにな
っている。 この場合、加熱室内に供給されたマイクロ波は極力外部
へ漏れないような構造となりているが、斯るマイクロ波
の漏れは完全には抑えきれず、この様な漏れが生じると
、これにLるノイズが赤外線セン?Ow力に乗り、セン
チのSN比が著しく低下し、よつて正確な温度のもとて
の加熱制御が実行できなくなり、食品の仕上りが悪くな
ると云う欠点がるる。 例えば、上述の如きマイクロa、漏れが庄じると、赤外
線センナの検知器Rは第5図(これは4B昭60−14
3589号公報のN5図に対応している)に示す如くか
なりのノイズが乗り上下に著しく変動しながら時間の経
過と共に上昇し、これによシ笑際は所望加熱温度T1に
未到達でToりて温度T2であるにも拘わらず、瞬間的
に上記検知温度が温度T1に到達した時点Aで加熱制御
が停止し、よりて食品の仕上りが悪くなるのである。 そこで、第6図(これは特開昭60−143589号公
報の第3図に対応している]に示す如く11J御するこ
とが提案されている。この場合、マイクロ彼加熱中赤外
−センサが第1所望温ET1以上を第1期間tl(例え
ば5秒間]O間継続して検知し、続いてマイク01ll
加熱を停止セしめ、斯る停止中赤外線上ン9が第2fj
r望温度T1′(この温度は上記#IIPR望温度T1
と同じとするン以上tgz期閏tz(例えば5秒間)の
間継続して検知した時に、漏れたマイクロはの影響金受
けず食品が所望状態に正しく仕上ったと判断し加熱を終
了する。従って、笑顔は所望加熱温度に未到達でありて
温式T2であるにも拘わらず、瞬間的に検知温度が所望
回熱温itこ到達した時点Aでは、第5図の時のエフに
加熱l!llI岬が停止することがなく、食品の仕上り
状dが悪くなるの鷺防ぐととができる。尚、上記加熱停
止中、第2所望温度T1以上をm2期間t2の間継続し
て検知できない時は、所望期間to、の後上記第1期間
t1の加熱以降が繰返される。 さて、上記制御においては、所望加熱温度への到達に基
づいて加熱が終了されるが、例えば煮込み等を行なり時
は、所望加熱温度到達後、所定時間だけ更に加熱する必
要がある。この場合の方法として、所望加熱温度に到達
するまで(第1加熱ステーシンのt=trfi時間t2
カ時間計2カウントシr要時間tKa該食品固有の加熱
時間係数αを乗算した時間αtを上記所定時間とし、こ
のF!fr定時間の閏更に加熱する(ji2加熱ステー
シンことが考えられる。 ここに、この様に所望加熱温度に到達するまでの所要F
IFPIiIIItvi−カウントする状態においては
、その所要時開Hcは、単に温度検知に関してマイクロ
yLm熱が停止されている期間to、t2(第6図)も
含まれ、よって所要時開tVc基づいた第2加熱ステー
ジの時間αtが不所望に長くなり、加熱し丁「の状態と
なる。 (9発明が解決しょうとする問題点 本発明は、マイクロ波の影響を受けず正確な温度検知上
行なりことができ、しかもへ所望加熱温度到達後、それ
までに要した時間に基づいて更に加熱を行なう場合、加
熱のしすぎが生じないようにすることを目的とする。 に)問題点を解決するための手段 本発明は、食品を加熱するためのマイクロ波を発振する
マイクa波発蚕手段、食品の温度を検知するための温度
検知器、該温度検知@O検検知直に基づいて上記マイク
C1@発振手段の駆IEllを制御する制御部を備えた
電子制御式調理器において、上記!lI御部は、上記温
度検知器の検知温度が第1所望温度に!A運後、斯る到
達がなされているIa5、所望時間だCす加熱を継続せ
しめる継続手段と、斯る継続加熱後、加熱を停止した状
態で上記温度検知器により食品温度を検知せしめる検知
手段と、該検知手段にお番する検知温度が第2所望温度
より高い時第1加熱ステージを終了せしめると共に、上
記検知手段にspgする検知温度が上記N2所望温度よ
夕低い時上記継続手段、検知手段及び自身の繰返しを行
なわせる判定手段と、上記g1m熱ステージの科rまで
に上記マイクロ波発娠手段が駆動された時間をカウント
するカウント手段と、上記jg1加熱ステージの終了後
上cカウント手段にてカウントされ死時間に基づいて第
2加熱ステージt*行せしめる実行手段とを有すること
を特徴とする。 (ホ)作 用 マイクロ波の影響上受
B] Industrial Application Field The present invention relates to an electronically controlled microprocessor that detects the temperature of food and controls microwave heating based on the detected temperature. (B) Conventional technology In this type of cooking device, the temperature of the food is detected by a temperature sensor such as an infrared centimeter placed outside the heating chamber while the microwave is being heated by supplying a microwave to the heating chamber. When the temperature reaches the desired temperature, the U0 heat is terminated. In this case, the structure is designed to prevent the microwaves supplied into the heating chamber from leaking to the outside as much as possible, but such leakage cannot be completely suppressed, and if such leakage occurs, the L Is the noise coming from the infrared sensor? The drawback is that the SN ratio in centimeters decreases significantly due to the Ow force, making it impossible to control the heating at an accurate temperature, resulting in poor quality of the food. For example, when a leak occurs in the Micro A as mentioned above, the infrared sensor's detector R is
As shown in Figure N5 of Publication No. 3589), there is a considerable amount of noise, which rises as time passes while fluctuating significantly up and down. Even though the temperature is T2, heating control is stopped at time A when the detected temperature instantaneously reaches temperature T1, resulting in poor quality of the food. Therefore, it has been proposed to control 11J as shown in Fig. 6 (which corresponds to Fig. 3 of JP-A-60-143589). detects the first desired temperature ET1 or more continuously for a first period tl (for example, 5 seconds) O, and then the microphone 01ll
Set the heating to stop, and during this stop, the infrared rays 9
r desired temperature T1' (this temperature is the above #IIPR desired temperature T1)
When the food is continuously detected for a time interval of 5 seconds or more (for example, 5 seconds), it is determined that the food is properly finished to the desired state without being affected by the leaked microorganisms, and heating is terminated. Therefore, even though the smiling face has not yet reached the desired heating temperature and is in the warm type T2, at time A when the detected temperature instantaneously reaches the desired heating temperature, it is heated to F as shown in Fig. 5. l! This prevents the cape from stopping and prevents the food from becoming poorly finished. Note that during the heating stop, if a temperature higher than the second desired temperature T1 cannot be continuously detected for the m2 period t2, the heating after the first period t1 is repeated after the desired period to. Now, in the above control, heating is terminated based on reaching the desired heating temperature, but when, for example, stewing is performed, it is necessary to further heat for a predetermined period of time after reaching the desired heating temperature. In this case, until the desired heating temperature is reached (t=trfi time t2 of the first heating station)
The time αt obtained by multiplying the required time tKa by the heating time coefficient α specific to the food is the predetermined time, and this F! further heating for a fixed period of time (2 heating stations can be considered.Here, the required F to reach the desired heating temperature in this way is
In the IFPIiIIItvi-counting state, the on-demand Hc simply includes the period to, t2 (FIG. 6) during which the micro yLm heat is turned off with respect to temperature sensing, and thus the second heating based on the on-demand tVc. The stage time αt becomes undesirably long, resulting in a state of overheating. In addition, the purpose is to prevent overheating when further heating is performed based on the time required until the desired heating temperature is reached. 2) Means for solving the problem The present invention provides a microphone A-wave oscillation means for oscillating microwaves for heating food, a temperature detector for detecting the temperature of food, and the microphone C1@oscillation based on the temperature detection @O detection. In an electronically controlled cooking appliance including a control section for controlling a driving device, the !lI control section determines that after the detected temperature of the temperature sensor reaches a first desired temperature, such arrival is made. Ia5, a continuation means for continuing heating for a desired time, a detection means for causing the temperature sensor to detect the food temperature with the heating stopped after such continuous heating, and a detection for the detection means. When the temperature is higher than the second desired temperature, the first heating stage is terminated, and when the detected temperature detected by the detection means is lower than the N2 desired temperature, the determination means causes the continuation means, the detection means, and themselves to repeat. , a counting means for counting the time during which the microwave starting means was driven up to the stage r of the g1m heating stage, and a count means counting by the upper c counting means after the completion of the jg1 heating stage, and counting the time based on the dead time. It is characterized by having an execution means for performing two heating stages t*.

【jず正確な温藏横知を行なうこ
とができる。 更に1所望IJI]熱温変到達後、それまでに要した時
間に基づいて更に加熱全行な5場合、そのfr要時間に
は、所望加熱温度到達までにマイクロ波加熱が停止され
た期間は含まれておらず、よって更に行なわれる加熱の
時間が不所望に長くなることはなく、加熱のし丁ぎ1r
:防止できる。 (へ)冥施例 一面は本発明実施例の電子レンジを示す。 第1図は同レンジの断面を表わし、マイクロ波発撮手段
としてのマグネトロン(1)から発振されたマイクC’
Rib波管(2)を介して本体(3)内の加熱室(4)
内に供給され、斯るマイクe改にてターンテーブル(5
)上の食品(6)が1xJ熱される。−万、上記り口熱
室(4)外には食品(6)からの赤外線を受光して食品
温度を検知するための温度検知器即ち赤外線センサ(7
)が設けられている。そして、斯るセ/1(7)からの
検知@夏信号に基づいて上記マグネトロン(1)のマイ
クc7彼発振を制−する工うになりている。上記加熱室
(4)内に供給されたマイクロaは極力外部へ漏れない
エフになっているが、斯るマイクロ波の漏れは完全に抑
えきれるものではない。 第2因は上記電子レンジの回路を示し、電子し/ジの制
御を司るvJ御部即ちマイクロコンピュータ(8)が設
(すられて2D、該;ンピュータは、本体(3)の前面
操作パネル(図示しないンに設(すられたキーボード(
9功為らの各檻111114e人力すると共に1赤外線
センナ(7)の検知温度T’fl@t A/ D変換器
(lりを介して入力し、そしてこれらの両慣報に基づい
て加熱信号Hi出力I!11御するエフになっている。 斯る加熱信号Hが出力された場合には、双方同性tイリ
スタからなるスインをンク回路(1]Jがオンし、商用
電源σ3からの電力が高圧回路(13に供給され、これ
によりマグネトロン(17に高圧が団80され、マイク
atHlが発最されて加熱が行なわれるのである。 次に、上記電子レンジの動作を第3図に示すマイクロコ
ンピュータ(8)のプログラムのフローチャートに基づ
いてaBAする。 通常、プログラムはS1%S2ステツプヲ循環している
。Slステップでは上記キーボード(9)にてキー操作
された各種情報がコンピュータ(8)内に入力され、S
2ステツプでは斯るキー操作が加熱開始に関するもので
あるか否力為が判断される。 而して、上記キーボード(9)にて多数のメニューキー
の中から所望メニュ−キーを選択操作する。 斯るメニューキーに係る加熱としては、まず所望温度に
到達するまで加熱しく第11xJ熱ステージ】、その後
この第1加熱ステージに関する時間に基づいて更に加熱
する(第2加熱ステージ)制御が行なわれる。すると、
そのメニューキー情報がSlステップにてコンピュータ
(8)内に人力され、次いで加熱開始のためのキー操作
を行なうと、プログラムは上記Sl、s2ステップの循
環を脱してS3ステツプに至る。該ステップではコンピ
ュータ(8)内の第3カウンタTMsがリセットされる
。 そして、プログラムは84〜S8ステツプを循環する。 S4ステツプではコンピュータ(8)内の第1カウンタ
TM1がリセットされる。S5ステツプでは加熱信号H
が出力開始されてマイクロ波加熱が開始される。S6ス
テツプは本発明のカウント手段でめり、同ステップ・ヱ
は第3カフンタTMsにて時間がアップカウントされ始
める。S7ステップではコンピュータ(8)内にセン!
(7)の検知食品温度が入力される。S8ステツプでは
斯る検知温度が第1所望温度T1に未到達でるるか否か
が判断される。 この様な84〜S8ステツプQ循環にあって、セン!(
7)の検知温度は第4図&C)実線に示す如く漏洩マイ
クロ波によるノイズが乗って上下変動しながら徐々に上
昇する。尚、第4図すはマイクロ波加熱の時間的経過を
表わしている。以後、斯る第4図をも参照する。 その後加熱が進み、センサ(7)の検知温度がノイズの
影響で瞬間的に例えばA点で5xfr望温度T1以上と
なると、プログラムは84〜S8ステツプO循環を85
.ステップにて脱しS9ステツプに至る。該ステップで
は上記第1カクンタTM1にて時間のアップカウントが
行なわれる。 次C3lOステップは本発明の継続手段に相当し、斯る
ステップでは第1カウンタTM1のカウント内容が5秒
以上であるか否かが判断さnる。 今の場合、否であるので、プログラムは85ステツプに
戻り、セしてS7ステップに至り再び温度検知されS8
ステツプにてその検知温度がjIIl所望温度T1に到
達したか否かが4!1tlrrされる。しかるに、この
時点にありては、斯る検知温度は上述の瞬間的状態が終
りて第1fr望温[Tlより小となっているとすると、
プログラムは88ステツプから84ステツプにRり、上
記81カクンタTMlがリセットされそのカウントが停
止される。 そして、プログラムは再び84〜S8ステツプを循環す
るようになる。 その後、更に加熱が進み、検知温度が上下変動し乍らも
常に所望加熱温度T1以上となると(a1点以降ン、こ
の場合プログラムは85〜8102テツグを循環するよ
うになり、而してこの循環状態が5秒間継続すると、1
aグラムはSllステップに進む。該ステップでは加熱
信号Hが出力停止されてマイクロ波加熱が停止される。 続くS12ステツプでは上紀篤3カウンタTM3でのカ
ウントが停止される。但し、そのカウント内容はクリア
されず残存している。更に続くS13ステツプではコン
ピュータ(8)内の1@2力クンタTM2がリセットさ
れる。 そして、プログラムは814,815ステツプを循環す
る。814ステツプでは第2カクンタTM2にて時間が
アップカッントされ始める。815ステツプでは斯るカ
ウント内容が5秒となりたか否かが判断される。 その後5秒経過すると、プログラムは87ステツプと同
様の816ステツプ(本発明の検知手段に相当する〕に
進み、続いて817ステツプに進む。該ステップは本発
明の判定手段に相当し、斯るステップでは、816ステ
ツプでのセンサ(7)の検知温度が第2fft厘温!T
l’(この場合T l/ 讃Tl)に到達したか否かが
判断される。この場合、上記検知温度はマイクロ波加熱
が停止されマイクO@によるノイズが全く存在しない状
態でめるから也めて正確で6り、そして斯る検知m度が
今所型加熱温度T1′より低い温度Tmでるるとすると
、グログ2ムはS4ステツグに戻り再びS5ステングに
至タマイクロ改加熱が開始される。 この様な状態I/Lひいては、セン?(77の検知温度
は上下変動し乍らも直ちに所望加熱温度T1以上となり
、これによりプログラムは続いて86〜S10ステツプ
を経てS5ステツプに戻り、又S5〜810ステツプを
循環するようになる。この様な循環において5秒が経過
すると、7aグラムは再び811ステツプに至りマイク
a波加熱が停止される。 そして、その後816ステツプにてマイクロ波にLるノ
イズが全く存在しない状態で正確に温度を検知すると、
その検知温度は上記温度Tmよりは高いが今猶上記第1
WriI温度Tlよシ低い温度T:hでるるとする。す
ると、プログラムは再Hs4ステップに戻り、そしてS
5〜810ステツプを同様に5秒間だけ循環し、その後
811ステツプに至り、マイクロ波加熱が停止される。 そして、その後の816ステツプにて正確に温度検知す
ると、この場合その検知温度は第2PIT望温度Tl′
以上となったものとすると、10グラムは次にS17ス
テツプから818ステツプに至る。 この時、I@l加熱ステージが終了したことになる。そ
して、この81加熱ステージにおいては、上記第3カク
ンタTM3は、S5ステツプで加熱が行なわれる時は8
6ステツプでカウントが行なわれ、811ステツプで加
熱が停止される時はS12ステツプでカウントが停止さ
れる。従って、第3カウンタTM3ではマグネトロン(
1)が駆動されて加熱が行なわれている時間だけがカウ
ントされることになる。 更に、上記センt(7)はマイクa波加熱中纂1/9i
望温置T1以上を5秒間継続して検知し、続いてマイク
c1tIIL加熱を停止した後第2所望温度T1′(■
Tl)以上を検知し、これにより、上記コンピュータ(
83は食品温罠が所望温度に正しく到達したと判断し九
ことになる。 次いで、第2加熱ステージが実行される。817ステツ
プの後に入る818ステツプでは、上記第3カクンタT
M3でカウントされ死時間に当該食品固有の加熱時間係
数αを乗算した時間α・TM3がコンピュータ(8)?
3のメ七すΔtにセットされる。 !<819ステツグは85ステツプと同様でるり、加熱
が開始される。更に続くS20ステツプでは、コンピュ
ータ(8)内の第4カウンタTM4がリセットされる。 そして、プログラムは821,822ステツプを循環す
る。S21ステツプでは第4カワンタTM4にて時間が
アップカ9ントされ始める。322ステッグμ本発明の
笑行手段に相当し、同ステップでは第4カウンタTM4
のカウント8谷が上記メモリΔt(■α、TM3 )の
内容に到達したか否かが判断される。 その後、斯る到達が判断されると、プログラムは811
ステツプと同様の823ステツプに至り、加熱が停止さ
れる。ここにi2/JO熱ステージが終了し、よって所
望メニューキーに関する加熱が終了したことになる。 任】発明の効果 本発明の電子制御式調理器によれば、マイクC7阪C)
影響を受けず正確な温度検知上行なりことができ、更に
、所望加熱温度到達後、それまでに要した時間に基づい
て更に加熱を行なう場合、その所要時間には、所望加熱
温度到達までにマイクロ波加熱が停止された期間は含ま
nて2らず、工つて更に行なわれる加熱の時間が不所望
に長くなることはなく、加熱のし丁ざt防止できる。
[You can perform accurate Onzō Yokochi. 1 more desired IJI] After reaching the thermotemperature change, further complete heating is performed based on the time required up to that point, and in the fr required time, the period during which microwave heating was stopped until the desired heating temperature was reached is Therefore, the time for further heating does not become undesirably long, and the heating time is 1r.
: Can be prevented. (f) Example The first page shows a microwave oven according to an example of the present invention. Figure 1 shows a cross section of the same range, and shows the microphone C' oscillated by the magnetron (1) as the microwave emission means.
Heating chamber (4) in the main body (3) via Rib wave tube (2)
The turntable (5
) The food (6) above is heated by 1xJ. - 10,000, outside the heating chamber (4) is a temperature detector, that is, an infrared sensor (7) for detecting the temperature of the food by receiving infrared rays from the food (6).
) is provided. The oscillation of the microphone C7 of the magnetron (1) is controlled based on the detected signal from the center/1 (7). Microwaves a supplied into the heating chamber (4) are designed to prevent leakage to the outside as much as possible, but leakage of such microwaves cannot be completely suppressed. The second cause shows the circuit of the microwave oven, and the vJ control section, that is, the microcomputer (8) that controls the microwave oven, is installed (2D), and the computer is the front operation panel of the main unit (3). (Set the keyboard (not shown)
The detected temperature T'fl@t of each cage 111114e of 9 works is manually inputted and the detected temperature T'fl@t of 1 infrared sensor (7) is input via an A/D converter (1), and a heating signal is generated based on these two signals. Hi output I!11 is controlled by F. When such a heating signal H is output, the switch circuit (1) J, which is composed of both homogeneous T iris resistors, is turned on, and the power from the commercial power supply σ3 is turned on. is supplied to the high voltage circuit (13), which in turn sends high voltage to the magnetron (17), which energizes the microphone atHl and performs heating. ABA is performed based on the flowchart of the program of the computer (8). Normally, the program cycles through S1 and S2 steps. In the S1 step, various information entered by key operations on the keyboard (9) is stored in the computer (8). input, S
In step 2, it is determined whether the key operation is related to starting heating or not. Then, a desired menu key is selected from a large number of menu keys using the keyboard (9). As for heating related to such a menu key, first, heating is performed until a desired temperature is reached (11xJ heat stage), and then further heating (second heating stage) is controlled based on the time related to this first heating stage. Then,
When the menu key information is manually entered into the computer (8) in the Sl step and a key operation is then performed to start heating, the program exits the cycle of the Sl and s2 steps and reaches the S3 step. In this step, the third counter TMs in the computer (8) is reset. The program then cycles through steps 84-S8. In step S4, the first counter TM1 in the computer (8) is reset. In step S5, the heating signal H
starts outputting and microwave heating starts. Step S6 is completed by the counting means of the present invention, and in step E, the time starts to be counted up in the third kahunta TMs. At step S7, a message appears in the computer (8)!
The detected food temperature in (7) is input. In step S8, it is determined whether the detected temperature has not yet reached the first desired temperature T1. In this kind of 84-S8 step Q cycle, Sen! (
The detected temperature in 7) gradually rises while fluctuating up and down due to the noise caused by the leaked microwave, as shown by the solid line in FIG. 4 &C). Incidentally, FIG. 4 shows the time course of microwave heating. Hereinafter, such FIG. 4 will also be referred to. After that, as the heating progresses and the temperature detected by the sensor (7) instantaneously becomes, for example, 5xfr desired temperature T1 or more at point A due to the influence of noise, the program cycles from 84 to S8 step O to 85.
.. The process exits at step S9. In this step, time is counted up in the first kakunta TM1. The next C31O step corresponds to the continuation means of the present invention, and in this step it is determined whether the count content of the first counter TM1 is 5 seconds or more. In this case, the answer is no, so the program returns to step 85, and goes to step S7, where the temperature is detected again and step S8
In step 4!1tlrr is determined whether the detected temperature has reached the desired temperature T1. However, at this point, assuming that the above-mentioned instantaneous state has ended and the detected temperature is smaller than the 1st fr desired temperature [Tl,
The program advances from step 88 to step 84, and the 81st count TM1 is reset and its counting is stopped. The program then cycles through steps 84-S8 again. After that, the heating progresses further, and even though the detected temperature fluctuates up and down, it always remains above the desired heating temperature T1 (after point a1, in this case the program cycles from 85 to 8102, and this cycle If the condition continues for 5 seconds, 1
The a-gram proceeds to the Sll step. In this step, output of the heating signal H is stopped and microwave heating is stopped. In the following step S12, counting by the Atsushi Kamiki 3 counter TM3 is stopped. However, the count contents remain without being cleared. Furthermore, in the subsequent step S13, the 1@2 power Kunta TM2 in the computer (8) is reset. The program then cycles through 814,815 steps. In step 814, the time starts to be up-cut in the second kakunta TM2. In step 815, it is determined whether or not the count has reached 5 seconds. After 5 seconds have elapsed, the program proceeds to step 816 (corresponding to the detection means of the present invention), which is similar to step 87, and then proceeds to step 817. This step corresponds to the determination means of the present invention, and such step Then, the temperature detected by the sensor (7) at step 816 is the 2nd fft temperature!T
It is determined whether or not it has reached l' (in this case, Tl/Tl). In this case, the above-mentioned detected temperature is accurate because it is obtained when the microwave heating is stopped and there is no noise caused by the microphone O@, and the detected temperature is 6 degrees higher than the current heating temperature T1'. Assuming that the temperature reaches a low temperature Tm, the grog 2m returns to the S4 stage and reaches the S5 stage again, and micro-reheating is started. In this kind of state I/L and even Sen? (Although the detected temperature at 77 fluctuates up and down, it immediately becomes equal to or higher than the desired heating temperature T1, so the program continues through steps 86 to S10, returns to step S5, and cycles through steps S5 to 810.) After 5 seconds have elapsed in such circulation, the 7a gram again reaches step 811 and microphone A wave heating is stopped.Then, in step 816, the temperature is accurately measured in the absence of any noise in the microwave. When detected,
The detected temperature is higher than the above temperature Tm, but it is still the first temperature above.
Assume that a temperature T:h is lower than the WriI temperature Tl. Then, the program returns to the Hs4 step again, and then the S
Steps 5 to 810 are similarly cycled for 5 seconds, after which step 811 is reached and microwave heating is stopped. Then, if the temperature is accurately detected in the subsequent step 816, the detected temperature in this case is the second PIT desired temperature Tl'.
Assuming that this is the case, 10 grams then goes from step S17 to step 818. At this time, the I@l heating stage is completed. In this 81 heating stage, the third kakunta TM3 is 8 when heating is performed in step S5.
Counting is performed in 6 steps, and when heating is stopped in step 811, counting is stopped in step S12. Therefore, the third counter TM3 uses the magnetron (
Only the time during which heating is performed by driving 1) is counted. Furthermore, the above cent t(7) is a microphone A-wave heating medium 1/9i
The desired temperature T1 or above is detected continuously for 5 seconds, and then the microphone c1tIIL heating is stopped and the second desired temperature T1' (■
Tl) or above is detected, and as a result, the computer (
83 determines that the food temperature trap has correctly reached the desired temperature. A second heating stage is then performed. In step 818, which is entered after step 817, the third kakunta T
Computer (8) is the time α・TM3, which is calculated by M3 and multiplied by the heating time coefficient α specific to the food to the death time?
The number 3 is set to Δt. ! The <819 step is similar to the 85 step, and heating starts. In the subsequent step S20, the fourth counter TM4 in the computer (8) is reset. The program then cycles through 821 and 822 steps. In step S21, time starts to be counted up in the fourth counter TM4. 322 step μ corresponds to the counting means of the present invention, and in the same step, the fourth counter TM4
It is determined whether the count of 8 has reached the content of the memory Δt (■α, TM3). Then, when such arrival is determined, the program calls 811
The process reaches step 823, which is similar to step 823, and heating is stopped. At this point, the i2/JO heat stage ends, and therefore the heating for the desired menu key ends. Effects of the Invention According to the electronically controlled cooker of the present invention, microphone C7
Accurate temperature sensing can be performed without being affected by the heating temperature.Furthermore, if further heating is performed based on the time required to reach the desired heating temperature, the micro This does not include the period during which the wave heating is stopped, so the time for further heating does not become undesirably long, and it is possible to prevent heating from clumping.

【図面の簡単な説明】[Brief explanation of the drawing]

第4図乃至第4図は本発明*施例の電子レンジに関し、
第1図は断面図、第2図は回路図、N3図はプログラム
の70−tヤード、N4図は加熱特性図、#!5図は従
来例の電子レンジの加熱W性図、第6図は他の従来例の
電子レンジの加熱特性図である。 (1)・・・マグネトロン、(7)・・・赤外線センナ
、(8)・・・マイクロコンピュータ。
4 and 4 relate to a microwave oven according to the present invention*,
Figure 1 is a sectional view, Figure 2 is a circuit diagram, Figure N3 is a 70-t yard program, Figure N4 is a heating characteristic diagram, and #! FIG. 5 is a heating characteristic diagram of a conventional microwave oven, and FIG. 6 is a heating characteristic diagram of another conventional microwave oven. (1)... Magnetron, (7)... Infrared sensor, (8)... Microcomputer.

Claims (1)

【特許請求の範囲】[Claims] (1)食品を加熱するためのマイクロ波を発振するマイ
クロ波発振手段、食品の温度を検知するための温度検知
器、該温度検知器の検知温度に基づいて上記マイクロ波
発振手段の駆動を制御する制御部を備えた電子制御式調
理器において、上記制御部は、上記温度検知器の検知温
度が第1所望温度に到達後、斯る到達がなされている限
り、所望時間だけ加熱を継続せしめる継続手段と、斯る
継続加熱後、加熱を停止した状態で上記温度検知器によ
り食品温度を検知せしめる検知手段と、該検知手段にお
ける検知温度が第2所望温度より高い時第1加熱ステー
ジを終了せしめると共に、上記検知手段における検知温
度が上記第2所望温度より低い時上記継続手段、検知手
段及び自身の繰返しを行なわせる判定手段と、上記第1
加熱ステージの終了までに上記マイクロ波発振手段が駆
動された時間をカウントするカウント手段と、上記第1
加熱ステージの終了後上記カウント手段にてカウントさ
れた時間に基づいて第2加熱ステージを実行せしめる実
行手段とを有することを特徴とする電子制御式調理器。
(1) Microwave oscillation means for oscillating microwaves to heat food, a temperature sensor for detecting the temperature of the food, and controlling the driving of the microwave oscillation means based on the temperature detected by the temperature sensor. In the electronically controlled cooking appliance, the control unit continues heating for a desired time after the temperature detected by the temperature sensor reaches the first desired temperature, as long as the temperature reaches the first desired temperature. a continuing means; a detecting means for causing the temperature sensor to detect the food temperature with the heating stopped after such continuous heating; and ending the first heating stage when the temperature detected by the detecting means is higher than the second desired temperature. and determining means for repeating the continuation means, the detection means, and itself when the detected temperature in the detection means is lower than the second desired temperature;
a counting means for counting the driving time of the microwave oscillation means until the end of the heating stage;
An electronically controlled cooking appliance characterized by comprising: execution means for executing a second heating stage based on the time counted by the counting means after the heating stage ends.
JP3390687A 1987-02-17 1987-02-17 Electronically controlled cooker Pending JPS63201430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3390687A JPS63201430A (en) 1987-02-17 1987-02-17 Electronically controlled cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3390687A JPS63201430A (en) 1987-02-17 1987-02-17 Electronically controlled cooker

Publications (1)

Publication Number Publication Date
JPS63201430A true JPS63201430A (en) 1988-08-19

Family

ID=12399557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3390687A Pending JPS63201430A (en) 1987-02-17 1987-02-17 Electronically controlled cooker

Country Status (1)

Country Link
JP (1) JPS63201430A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702626A (en) * 1994-12-14 1997-12-30 Lg Electronics Inc. Automatic cooking controlling apparatus and method employing a narrow viewing angle of an infrared absorptive thermopile sensor
US6066839A (en) * 1997-11-14 2000-05-23 Lg Electronics Inc. Temperature compensation method for a microwave oven

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702626A (en) * 1994-12-14 1997-12-30 Lg Electronics Inc. Automatic cooking controlling apparatus and method employing a narrow viewing angle of an infrared absorptive thermopile sensor
US6066839A (en) * 1997-11-14 2000-05-23 Lg Electronics Inc. Temperature compensation method for a microwave oven
CN100343581C (en) * 1997-11-14 2007-10-17 Lg电子株式会社 Temperature compensation method for microwave oven

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