JPH03212227A - Electric rice cooker - Google Patents

Electric rice cooker

Info

Publication number
JPH03212227A
JPH03212227A JP868790A JP868790A JPH03212227A JP H03212227 A JPH03212227 A JP H03212227A JP 868790 A JP868790 A JP 868790A JP 868790 A JP868790 A JP 868790A JP H03212227 A JPH03212227 A JP H03212227A
Authority
JP
Japan
Prior art keywords
temperature
lid
heater
detection means
temperature detection
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
Application number
JP868790A
Other languages
Japanese (ja)
Other versions
JPH0813288B2 (en
Inventor
Yasuhiko Tanaka
靖彦 田中
Setsuzou Konno
説三 紺ノ
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2008687A priority Critical patent/JPH0813288B2/en
Publication of JPH03212227A publication Critical patent/JPH03212227A/en
Publication of JPH0813288B2 publication Critical patent/JPH0813288B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To prevent dew condensation on the inner side of a lid by controlling bottom and barrel heaters for supplying power thereto at a specified rate or interrupting the power supply, when an output signal from a low temperature detection means drops to or below the level of the predetermined thermal insulation temperature, and further controlling a lid heater for supplying power thereto, when an output signal from a lid temperature detection means is equal to or below the predetermined temperature level, and for stopping a heating process, when the output signal exceeds the aforesaid temperature level. CONSTITUTION:A control means 28, upon receipt of output signals from a bottom temperature detection means 26 and a lid temperature detection means 27, controls a lid heater 25 and a barrel heater 24 at a specified rate of power supply during the time of a thermal insulation process immediately after a cooking process to the drop of an output signal from the bottom temperature detection means 26 to or below the predetermined thermal insulation temperature. Also, the control means 28 controls a bottom heater 23 as well as the barrel heater 24 at a specified rate of power supply thereto or for the interruption of the power supply, so as to maintain the predetermined thermal insulation temperature, when the output signal from the bottom temperature detection means 26 drops to or below the predetermined thermal insulation temperature. Furthermore, the control means 28 controls a lid heater 25 for power supply thereto, when an output signal from the lid temperature detection means 27 is equal to or below the predetermined temperature level, and for the interruption of the power supply, when the output signal exceeds the predetermined temperature.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、保温機能を有する電気炊飯器に関する。[Detailed description of the invention] Industrial applications The present invention relates to an electric rice cooker having a heat retention function.

従来の技術 最近の保温機能を有する電気炊飯器では、炊飯の出来具
合が良いことは当然のことながら保温機能についてもよ
り美味しく保温ができるものが求められるようになって
きている。
BACKGROUND OF THE INVENTION In recent years, electric rice cookers with a heat retention function are required not only to cook rice well, but also to have a heat retention function that can keep the rice hot and delicious.

従来のこの種の電気炊飯器について第4図および第6図
を参照しながら説明する。
A conventional electric rice cooker of this type will be explained with reference to FIGS. 4 and 6.

第4図に示すように、上部に蓋1を設けた米と水とを入
れる容器2と、この容器2の底部分を加熱する底ヒータ
3と、容器2の側面部分を加熱する胴ヒータ4と、容器
2の温度を検知するサーミスタ6と、このサーミスタ6
からの信号を入力し、炊飯工程から保温工程に入った直
後から、罰記す3ベ ーミスタ5によシ検知された容器2の温度が、規定の保
温温度になるように前記底ヒータ3と前記胴ヒータ4と
をそれぞれ一定の通電率で通電するか通電を停止するよ
うに制御する制御回路基板6とから構成されている。
As shown in FIG. 4, there is a container 2 with a lid 1 on the top for holding rice and water, a bottom heater 3 that heats the bottom part of the container 2, and a body heater 4 that heats the side parts of the container 2. , a thermistor 6 that detects the temperature of the container 2, and this thermistor 6.
Immediately after entering the warming process from the rice cooking process, the bottom heater 3 and the body The control circuit board 6 is configured to control the heater 4 so as to energize each heater 4 at a constant energization rate or to stop energizing the heater 4 .

つぎに、この電気炊飯器の動作について第5図のブロー
チヤードを参照しながら説明する。
Next, the operation of this electric rice cooker will be explained with reference to the broach yard in FIG.

第5図において、ステップ1oで炊飯工程の処理を行な
う。ステップ11で炊飯工程が終了したかどうかを判定
し、炊飯が終了していなければステップ10へもどシ、
炊飯が終了するまでステップ1oから11を繰シ返す。
In FIG. 5, a rice cooking process is performed in step 1o. In step 11, it is determined whether the rice cooking process has finished, and if the rice cooking has not finished, the process returns to step 10.
Repeat steps 1o to 11 until the rice is cooked.

炊飯が終了したならばステップ12へ進み、サーミスタ
6によシ容器2の温度を入力する。つぎにステップ13
で温度が保温温度(71,5°C)に達していなければ
ステップ14で胴ヒータ4を15/ 16、底ヒータ3
を1/16の通電率で通電し、温度が保温温度を超えて
いたならばステップ16で胴ヒータ4と底ヒータ3との
通電を停止する。ステップ14と16を実行した後はヌ
テッ12へもどる。ステップ12から16を繰り返し、
容器2の温度が保温温度になるように制御し、容器2の
中の御飯を保温していた。
When the rice cooking is completed, the process proceeds to step 12, where the temperature of the container 2 is inputted to the thermistor 6. Next step 13
If the temperature has not reached the keep-warm temperature (71.5°C), in step 14, switch the body heater 4 to 15/16 and the bottom heater 3.
is energized at an energization rate of 1/16, and if the temperature exceeds the heat retention temperature, the energization of the body heater 4 and the bottom heater 3 is stopped in step 16. After performing steps 14 and 16, return to nut 12. Repeat steps 12 to 16,
The temperature of the container 2 was controlled to be the keeping temperature, and the rice in the container 2 was kept warm.

発明が解決しようとする課題 このような従来の電気炊飯器では、保温中に蓋を開けて
再び閉じると蓋の部分が冷えているので、すぐに蓋の内
側に露が付き、露が御飯の上に落下し、保温中の御飯が
水分を多く含んで、形が崩れたシ、白化するという課題
があった。
Problems to be Solved by the Invention In such conventional electric rice cookers, when the lid is opened and then closed again while the rice is being kept warm, the lid is cold, so dew forms on the inside of the lid, and the dew forms on the rice. There was a problem that the rice that was kept warm by falling on top of the container would contain a lot of moisture, causing it to lose its shape and turn white.

本発明は、上記課題を解決するもので、容器上部の蓋を
蓋ヒータによシ加熱制御して蓋の内側に露が付くのを防
止し、露の付着によシ御飯の味。
The present invention solves the above problems by controlling the heating of the lid at the top of the container using a lid heater to prevent dew from forming on the inside of the lid, thereby improving the flavor of the rice.

形等を劣化させることなく保温することを目的としてい
る。
The purpose is to retain heat without deteriorating its shape.

課題を解決するための手段 本発明は上記目的を達成するために、上部に蓋を設け米
と水とを入れる容器と、前記容器の底部分を加熱する底
ヒータと、前記容器の側面部分を加熱する胴ヒータと、
前記容器の蓋の内側を加熱する蓋ヒータと、前記容器の
底部分の温度を検知6 ′\−ノ する底温度検知手段と、前記容器の蓋部分の温度を検知
する型温度検知手段と、前記底温度検知手段と前記型温
度検知手段の信号を入力する制御手段とを備え、前記制
御手段は炊飯工程から保温工程に入った直後から前記底
温度検知手段の出力が規定の保温温度以下になるまでの
期間前記蓋ヒータと前記胴ヒータとを一定の通電率で通
電し、前記底温度検知手段の出力が規定の保温温度以下
になったとき保温温度になるように前記底ヒータと前記
胴ヒータとをそれぞれ一定の通電率で通電するか通電を
停止するように制御し、かつ前記型温度検知手段の出力
が規定の温度以下の場合は前記蓋ヒータを通電し規定の
温度を越えたならば前記蓋ヒータによる加熱を停止する
よう制御するととを課題解決手段としている。
Means for Solving the Problems In order to achieve the above objects, the present invention provides a container with a lid on the top to hold rice and water, a bottom heater that heats the bottom part of the container, and a side part of the container. A body heater that heats the
a lid heater that heats the inside of the lid of the container; bottom temperature sensing means that detects the temperature of the bottom portion of the container; mold temperature sensing means that detects the temperature of the lid portion of the container; The control means is provided with a control means for inputting a signal from the bottom temperature detection means and the mold temperature detection means, and the control means is configured to control the output of the bottom temperature detection means to be lower than a specified warming temperature immediately after entering the warming step from the rice cooking process. The lid heater and the body heater are energized at a constant energization rate for a period of time until the bottom temperature detecting means reaches a specified heat retention temperature. The heaters are controlled to be energized at a constant energization rate or de-energized, respectively, and when the output of the mold temperature detection means is below a specified temperature, the lid heater is energized, and when the temperature exceeds the specified temperature, the lid heater is energized. For example, a means for solving the problem is to control the heating by the lid heater to be stopped.

作  用 本発明は、上記した構成により炊飯工程から保温工程に
移った後、容器の底温度が規定の保温温度以下になる壕
での開蓋ヒータと底ヒータとへの通電を制御して蓋ヒー
タを加熱し、蓋の内側の温6ページ 度を下がらないように制御して容器上部の蓋の内側に露
が付着することを防止できる。また、底温度が保温温度
以下になったならば、胴ヒータと底ヒータとを制御し底
温度を一定の保温温度に保ち、且つ蓋ヒータは型温度検
知手段によシ規定の温度を越えて加熱されないように制
御することができる。
Effects of the present invention With the above-described configuration, after the rice cooking process moves to the heat retention process, the lid is closed by controlling the energization to the open lid heater and the bottom heater in the trench where the bottom temperature of the container becomes lower than the specified heat retention temperature. It is possible to prevent dew from adhering to the inside of the lid at the top of the container by heating the heater and controlling the temperature inside the lid not to drop by 6 degrees. Furthermore, if the bottom temperature falls below the heat retention temperature, the body heater and bottom heater are controlled to maintain the bottom temperature at a constant heat retention temperature, and the lid heater is controlled by the mold temperature detection means to detect if the temperature exceeds the specified temperature. It can be controlled so that it does not get heated.

実施例 以下、本発明の一実施例について第1図、第2図および
第3図を参照しながら説明する。
EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1, 2, and 3.

図に示すように、容器21は上部に蓋22を設け米と水
とを入れる。この容器21の底部分を底ヒータ23によ
シ加熱し、側面部分を胴ヒータ24によシ加熱する。蓋
ヒータ26は蓋22の内側を加熱する。底温度検知手段
26は容器21の底部分の温度を検知する。型温度検知
手段27は蓋22の温度を検知する。制御手段28は底
温度検知手段26と型温度検知手段27との信号を入力
し、炊飯工程から保温工程に入った直後から底温度検知
手段26の出力が規定の保温温度以下に7ベー/ なるまでの期間、蓋ヒータ25と胴ヒータ24とを一定
の通電率で制御し、底温度検知手段26の出力が規定の
保温温度以下になったとき、この保温温度になるように
底ヒータ23と胴ヒータ24とをそれぞれ一定の通電率
で通電するか通電を停止するように制御し、かつ型温度
検知手段27の出力が規定の温度以下の場合は蓋ヒータ
26を通電し規定の温度を越えたならば蓋ヒータ25に
よる加熱を停止するよう制御する。
As shown in the figure, a container 21 has a lid 22 on the top and contains rice and water. The bottom part of this container 21 is heated by a bottom heater 23, and the side part is heated by a body heater 24. The lid heater 26 heats the inside of the lid 22. The bottom temperature detection means 26 detects the temperature of the bottom portion of the container 21. The mold temperature detection means 27 detects the temperature of the lid 22. The control means 28 inputs the signals from the bottom temperature detection means 26 and the mold temperature detection means 27, and the output of the bottom temperature detection means 26 becomes 7 bases/min immediately after entering the warming step from the rice cooking process to the specified warming temperature. During this period, the lid heater 25 and the body heater 24 are controlled at a constant energization rate, and when the output of the bottom temperature detection means 26 becomes below the specified heat retention temperature, the bottom heater 23 and the body heater 24 are controlled to maintain the heat retention temperature. The body heater 24 is controlled to be energized at a constant energization rate or de-energized, respectively, and if the output of the mold temperature detection means 27 is below a specified temperature, the lid heater 26 is energized so that the temperature exceeds the specified temperature. If so, the heating by the lid heater 25 is controlled to be stopped.

つぎに、第2図は具体回路図で、開始キー29は炊飯工
程の開始を行ない、取消しキー3oは炊飯工程および保
温工程を取消すためのものである。
Next, FIG. 2 is a specific circuit diagram, in which a start key 29 is used to start the rice cooking process, and a cancel key 3o is used to cancel the rice cooking process and the warming process.

底温度検知手段(以下第1のサーミスタという)26は
容器21の底温度を検知し、第1のA/D変換器31に
入力し、この第1のA/D変換器31は第1のサーミス
タ26からの信号をA/D変換する。型温度検知手段(
以下第2のサーミスタという)27は容器21の蓋温度
を検知し、第2のA/D変換器32に入力し、この第2
のA/D変換器32は第2のサーミスタ27からの信号
をA/D変換する。リレー33は底ヒータ23を通電さ
せるためのもので、リレーコイ/l/33aとリレー接
点33bを有している。リレー駆動部34はリレー33
を駆動するものである。リレー36は胴ヒータ24を通
電させるためのもので、リレコイ/v35aとリレー接
点35bを有している。
The bottom temperature detection means (hereinafter referred to as the first thermistor) 26 detects the bottom temperature of the container 21 and inputs it to the first A/D converter 31. The signal from the thermistor 26 is A/D converted. Mold temperature detection means (
A thermistor 27 (hereinafter referred to as a second thermistor) detects the lid temperature of the container 21 and inputs it to the second A/D converter 32.
The A/D converter 32 A/D converts the signal from the second thermistor 27. The relay 33 is for energizing the bottom heater 23 and has a relay coil/l/33a and a relay contact 33b. The relay drive unit 34 is the relay 33
It is what drives the. The relay 36 is for energizing the body heater 24, and has a relay coil/v35a and a relay contact 35b.

リレー駆動部36はリレー36を駆動するものである。The relay drive section 36 drives the relay 36.

リレー37は萱ヒータ25を通電させるためのもので、
リレーコイル37aとリレー接点37bを有している。
The relay 37 is for energizing the Kaya heater 25.
It has a relay coil 37a and a relay contact 37b.

リレー駆動部38はリレー37を駆動するものである。The relay drive unit 38 drives the relay 37.

入力部39は開始キー29と取消しキー3oと第10A
/D変換器31と第2のA/D変換器32とからの信号
を入力する。出力部40はリレー駆動部34 、36 
The input section 39 has a start key 29, a cancel key 3o, and a 10th A key.
Signals from the /D converter 31 and the second A/D converter 32 are input. The output section 40 is connected to the relay drive sections 34 and 36.
.

38のそれぞれに対してリレー開閉の信号を出力する。A relay opening/closing signal is output to each of 38.

制御部41は入力部39から入力された信号によシ出力
部4oを制御する。マイクロコンピュータ42は入力部
39.出力部4oおよび制御部41によ多構成されてい
る。
The control section 41 controls the output section 4o based on the signal input from the input section 39. The microcomputer 42 has an input section 39. It is composed of an output section 4o and a control section 41.

第3図はマイクロコンピュータ42の動作を示9 ベー
ノ fフロー4−ヤードを示したもので、このフローチャー
トを参照しながら動作を説明する。
FIG. 3 shows the operation of the microcomputer 42 and shows the flow of 4 yards.The operation will be explained with reference to this flowchart.

第3図において、ステップ6oで開始キー29の入力を
行い、ステップ61で押されたキーが開始キー29かど
うか判断し、開始キー29が押されルマテステッ−7′
5oから61を繰り返す。ステップ61で開始キー29
が押されたならば、ステップ52へ進み炊飯工程を実行
する。ステップ53で炊飯工程が終了したかどうかを判
定し、炊飯が終了していなければステップ52へもどシ
、炊飯が終了するまでステップ62から63を繰り返す
。炊飯が終了したならばステップ54へ進み胴ヒータ2
4を3/16、蓋ヒータ25を3/16の通電率で通電
する。ステップ55で底温度検知手段26によシ容器2
1の底温度を検知し、ステップ56で検知した底温度が
保温温度(71,5℃)よシ下がったかどうか判定し、
保温温度を下回ってなければステップ67へ進む。ヌテ
ッブ6了で取消しキー3oの入力を行い、ステップ58
で取消しキー3oが押されたと判断されなかったなら1
oべ ばステップ64にもどる。
In FIG. 3, the start key 29 is input in step 6o, it is determined in step 61 whether the pressed key is the start key 29, and if the start key 29 is pressed, the start key 29 is pressed.
Repeat steps 5o to 61. Start key 29 in step 61
If is pressed, the process advances to step 52 and the rice cooking process is executed. In step 53, it is determined whether or not the rice cooking process has been completed. If the rice cooking has not been completed, the process returns to step 52, and steps 62 to 63 are repeated until the rice cooking is completed. When the rice cooking is completed, proceed to step 54 and turn on the body heater 2.
4 is energized at a energization rate of 3/16, and the lid heater 25 is energized at a energization rate of 3/16. In step 55, the bottom temperature detection means 26 detects the temperature of the container 2.
Detecting the bottom temperature of step 1, determining whether the bottom temperature detected in step 56 has fallen below the heat retention temperature (71.5 degrees Celsius),
If the temperature is not lower than the heat retention temperature, the process advances to step 67. Enter the cancel key 3o at the end of Nuteb 6, and proceed to step 58.
1 if it is not determined that the cancel key 3o has been pressed.
If o is pressed, the process returns to step 64.

ステップ66で検知した底温度が保温温度以下と判断さ
れるか、ステップ58で取消しキー3゜が押されたと判
断されるまでステップ64からステップ58を繰シ返す
Steps 64 to 58 are repeated until it is determined in step 66 that the bottom temperature detected is lower than the heat retention temperature, or until it is determined in step 58 that the cancel key 3° is pressed.

ステップ66で底温度検知手段26によシ検知した底温
度が保温温度を下回ったならば、ステップ59へ進み再
び底温度検知手段26によシ容器21の底温度を検知す
る。ステップ6oで底温度が保温温度(71,5°C)
に達していなければステップ61で胴ヒータ24を16
/16、底ヒータ23を1/16の通電率で通電し、底
温度が保温温度を越えていたならばステップ62で胴ヒ
ータ24と底ヒータ23との通電を停止する。ステップ
e1と62を実行した後はステップ63へ進み型温度検
知手段27よシ容器21の蓋温度を検知する。ステップ
64で蓋温度が設定温度(112°C)に達していなけ
れば、ステップ65で蓋ヒタ26の通電し、蓋温度が設
定温度を越えていたならばステップ66で蓋ヒータ26
の通電を停止11 ヘ一/ する。ステップ66とステップ66とを実行した後はス
テップ67へ進み取消しキー3oの入力を行う。ステッ
プ78で取消しキー3oが押されたと判断されなかった
ならばステップ59にもどる。
If the bottom temperature detected by the bottom temperature detection means 26 falls below the heat retention temperature in step 66, the process proceeds to step 59, where the bottom temperature of the container 21 is detected again by the bottom temperature detection means 26. In step 6o, the bottom temperature is the keeping temperature (71.5°C)
If the temperature has not been reached, in step 61 the body heater 24 is
/16, the bottom heater 23 is energized at an energization rate of 1/16, and if the bottom temperature exceeds the heat retention temperature, the energization of the body heater 24 and the bottom heater 23 is stopped in step 62. After executing steps e1 and 62, the process proceeds to step 63, where the temperature detection means 27 detects the temperature of the lid of the container 21. If the lid temperature has not reached the set temperature (112°C) in step 64, the lid heater 26 is energized in step 65, and if the lid temperature exceeds the set temperature, the lid heater 26 is turned on in step 66.
Stop the power supply to 11/. After executing steps 66 and 66, the process proceeds to step 67 and the cancel key 3o is input. If it is determined in step 78 that the cancel key 3o has not been pressed, the process returns to step 59.

ステップ68で取消しキー3oが押されたと判断される
までステップ69からステップ68を繰シ返す。
Steps 69 to 68 are repeated until it is determined in step 68 that the cancel key 3o has been pressed.

ステップ6日およびステップ68で取消しキー30が押
されたときは、ステップ69へ進みすべてのヒータの通
電を停止しステップ60へもどる。
When the cancel key 30 is pressed on step 6 and in step 68, the process advances to step 69, stops energization of all heaters, and returns to step 60.

このように本発明の実施例の電気炊飯器によれば、炊飯
工程から保温工程に移った後は、保温温度を下回るまで
は胴ヒータ24と蓋ヒータ26とを加熱し、露が蓋22
に発生することがなく、御飯の上に落下して御飯の味、
形などを劣化させることがなく、また、保温温度を下回
った後は、底温度と蓋温度による加熱制御を行い容器2
1の底温度を保温温度に調節し、このとき、加熱制御は
、底温度検知手段26によシ底ヒータ23と胴ヒータ2
4とを加熱制御し、蓋温度検知手段27により皆ヒータ
25を加熱制御するので、蓋ヒータ25の加熱制御は底
温度と独立した制御を行い、容器内の露の発生を常に防
止できる。さらに、蓋22の温度が異常に上昇したとき
、蓋ヒータ26の加熱を停止するので、使用者の火傷や
機器の損傷を防止できる。
According to the electric rice cooker of the embodiment of the present invention, after moving from the rice cooking process to the heat retention process, the body heater 24 and the lid heater 26 are heated until the temperature drops below the heat retention temperature, and the dew is removed from the lid 22.
The taste of the rice is reduced by falling onto the rice without causing
It does not cause deterioration of the shape, etc., and after the temperature drops below the insulating temperature, heating is controlled by the bottom temperature and lid temperature.
The bottom temperature of the bottom heater 23 and the body heater 2 are controlled by the bottom temperature detection means 26 at this time.
4 and the heaters 25 are controlled by the lid temperature detection means 27, so that the heating control of the lid heater 25 is performed independently of the bottom temperature, and the generation of dew inside the container can be always prevented. Furthermore, when the temperature of the lid 22 rises abnormally, heating of the lid heater 26 is stopped, thereby preventing burns to the user and damage to the equipment.

発明の効果 以上の実施例から明らかなように、本発明によれば保温
工程に入った直後の容器の温度が高く水蒸気がたくさん
発生するときには、胴ヒータと蓋ヒータとを加熱し露が
蓋に発生しないように制御されるために露が御飯の上に
落下し御飯の味、形などを劣化させることを防止するこ
とができる。
Effects of the Invention As is clear from the above embodiments, according to the present invention, when the temperature of the container immediately after entering the warming process is high and a lot of water vapor is generated, the body heater and the lid heater are heated to prevent dew from reaching the lid. Since dew is controlled so that it does not occur, it is possible to prevent dew from falling on the rice and deteriorating the taste, shape, etc. of the rice.

また、保温工程に入り、容器の底温度が下がって保温温
度以下になった場合でも、蓋ヒータの加熱制御は底温度
と独立した制御を行っているため容器内の露の発生を常
に防止することができる。さらに、保温工程に入シ、容
器の底温度が下がって保温温度以下になった場合、蓋ヒ
ータの加熱にょシ蓋温度が異常に上昇しても、規定温度
に達した13ページ ならば蓋ヒータの加熱を停止するため使用者の火傷や機
器の損傷を防止することができる。
In addition, even if the bottom temperature of the container drops below the keeping temperature during the warming process, the heating control of the lid heater is controlled independently of the bottom temperature, which always prevents dew from forming inside the container. be able to. Furthermore, if the temperature at the bottom of the container drops below the keep-warm temperature during the keep-warm process, the lid heater will not heat up. This prevents burns to the user and damage to the equipment.

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

第1図は本発明の一実施例の電気炊飯器のブロック図、
第2図は同電気炊飯器の具体回路図、第3図は同電気炊
飯器におけるマイクロコンピュータの動作フローチャー
ト、第4図は従来の電気炊飯器の縦断面図、第6図は同
従来例の電気炊飯器の動作フローチャートである。 21・・・・・・容器、22・・・・・・蓋、23・・
・・・・底ヒータ、24・・・・・・胴ヒータ、26・
川・・蓋ヒータ、26・・・・・・底温度検知手段、2
7・・川・蓋温度検知手段、28・・・・−・制御手段
FIG. 1 is a block diagram of an electric rice cooker according to an embodiment of the present invention.
Figure 2 is a specific circuit diagram of the electric rice cooker, Figure 3 is an operation flowchart of the microcomputer in the electric rice cooker, Figure 4 is a vertical cross-sectional view of a conventional electric rice cooker, and Figure 6 is a diagram of the conventional electric rice cooker. It is an operation flowchart of an electric rice cooker. 21...container, 22...lid, 23...
... Bottom heater, 24 ... Body heater, 26.
River...Lid heater, 26...Bottom temperature detection means, 2
7. River/lid temperature detection means, 28..... Control means.

Claims (1)

【特許請求の範囲】[Claims] 上部に蓋を設け米と水を入れる容器と、前記容器の底部
分を加熱する底ヒータと、前記容器の側面部分を加熱す
る胴ヒータと、前記容器の蓋の内側を加熱する蓋ヒータ
と、前記容器の底部分の温度を検知する底温度検知手段
と、前記容器の蓋部分の温度を検知する蓋温度検知手段
と、前記底温度検知手段と前記蓋温度検知手段の信号を
入力する制御手段とを備え、前記制御手段は炊飯工程か
ら保温工程に入った直後から前記底温度検知手段の出力
が規定の保温温度以下になるまでの期間、前記蓋ヒータ
と前記胴ヒータとを一定の通電率で通電し、前記底温度
検知手段の出力が規定の保温温度以下になったとき保温
温度になるように前記底ヒータと前記胴ヒータとをそれ
ぞれ一定の通電率で通電するか通電を停止するように制
御し、かつ前記蓋温度検知手段の出力が規定の温度以下
の場合は前記蓋ヒータを通電し規定の温度を越えたなら
ば前記蓋ヒータによる加熱を停止するよう制御してなる
電気炊飯器。
A container with a lid on the top and containing rice and water, a bottom heater that heats the bottom part of the container, a body heater that heats the side part of the container, and a lid heater that heats the inside of the lid of the container. Bottom temperature detection means for detecting the temperature at the bottom of the container; lid temperature detection means for detecting the temperature at the lid of the container; and control means for inputting signals from the bottom temperature detection means and the lid temperature detection means. The control means controls the lid heater and the body heater at a constant energization rate for a period from immediately after entering the warming process from the rice cooking process until the output of the bottom temperature detection means becomes equal to or lower than the prescribed warming temperature. and when the output of the bottom temperature detecting means becomes equal to or lower than a specified heat retention temperature, the bottom heater and the body heater are respectively energized at a constant energization rate or stopped energized so that the heat retention temperature is reached. and is controlled to energize the lid heater when the output of the lid temperature detection means is below a specified temperature, and to stop heating by the lid heater when the output exceeds the specified temperature. .
JP2008687A 1990-01-18 1990-01-18 Electric rice cooker Expired - Lifetime JPH0813288B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008687A JPH0813288B2 (en) 1990-01-18 1990-01-18 Electric rice cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008687A JPH0813288B2 (en) 1990-01-18 1990-01-18 Electric rice cooker

Publications (2)

Publication Number Publication Date
JPH03212227A true JPH03212227A (en) 1991-09-17
JPH0813288B2 JPH0813288B2 (en) 1996-02-14

Family

ID=11699835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008687A Expired - Lifetime JPH0813288B2 (en) 1990-01-18 1990-01-18 Electric rice cooker

Country Status (1)

Country Link
JP (1) JPH0813288B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008054978A (en) * 2006-08-31 2008-03-13 Tiger Vacuum Bottle Co Ltd Electric rice cooker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112464U (en) * 1974-02-21 1975-09-12
JPS61185223A (en) * 1985-02-14 1986-08-18 株式会社日立ホームテック Heat insulating type rice cooker
JPS61222419A (en) * 1985-03-26 1986-10-02 シャープ株式会社 Cooker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112464U (en) * 1974-02-21 1975-09-12
JPS61185223A (en) * 1985-02-14 1986-08-18 株式会社日立ホームテック Heat insulating type rice cooker
JPS61222419A (en) * 1985-03-26 1986-10-02 シャープ株式会社 Cooker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008054978A (en) * 2006-08-31 2008-03-13 Tiger Vacuum Bottle Co Ltd Electric rice cooker

Also Published As

Publication number Publication date
JPH0813288B2 (en) 1996-02-14

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