JP2012223473A - Rice cooker - Google Patents

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JP2012223473A
JP2012223473A JP2011095634A JP2011095634A JP2012223473A JP 2012223473 A JP2012223473 A JP 2012223473A JP 2011095634 A JP2011095634 A JP 2011095634A JP 2011095634 A JP2011095634 A JP 2011095634A JP 2012223473 A JP2012223473 A JP 2012223473A
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temperature
steam
temperature sensor
lid
pressure
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Toshiaki Suzuki
利明 鈴木
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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Abstract

PROBLEM TO BE SOLVED: To allow a user to recognize that the pressure regulating function of a pressure regulation valve does not work and therefore the pressure inside the inner pot is not degassed to use a pressure rice cooker safely.SOLUTION: The rice cooker includes: a pressure regulation valve 5 that is provided in an inner lid 4 and keeps a constant pressure by limiting discharge of stream from inside the inner pot 2; a steam passage 6 that emits steam exhausted from the pressure regulation valve 5 outside of a lid 3; a heating means 7 for heating the inner pot 2; and a controlling means 8 for controlling the electric power of the heating means 7. The lid 3 is provided with a first temperature sensor 9 for detecting the temperature inside the inner pot 2, and the steam passage 6 is provided with a second temperature sensor 10 for detecting discharge of steam from the pressure regulation valve 5 by a change of temperature. The controlling means 8 determines that the pressure regulation valve 5 becomes stuck during rice cooking when the second temperature sensor 10 does not rise more than a predetermined temperature during rice cooking and the first temperature sensor 9 does not fall more than a predetermined temperature than the temperature during rice cooking after finish of rice cooking and lets the user know that an abnormality occurs by sound, display, etc.

Description

本発明は、圧力炊飯器の安全性に関するものである。   The present invention relates to the safety of a pressure rice cooker.

従来のこの炊飯器は、ご飯を美味しく炊き上げるために内鍋(内釜)内の圧力を高めて炊飯を行うようにしている。   This conventional rice cooker increases the pressure in the inner pot (inner pot) in order to cook rice deliciously.

特許文献1では放熱板の温度を検出する蓋センサと、蒸気排出経路の排出温度を検出する蒸気センサの2つを用いて各検出温度が特定の温度に達するまでの所要時間を求め、判定時間に基づいて炊飯容量判別を行い、また、蒸気センサにより被調理物から発生する蒸気温度を精度よくとらえて沸騰検知を行い、吹きこぼれなどの危険性を低下したものがある。   In Patent Document 1, the time required for each detected temperature to reach a specific temperature is determined by using a lid sensor that detects the temperature of the heat radiating plate and a steam sensor that detects the discharge temperature of the steam discharge path. The rice cooking capacity is discriminated based on the temperature, and the steam temperature generated from the food to be cooked is accurately detected by the steam sensor to detect the boiling to reduce the risk of spilling.

特開2004−073311号公報JP 2004-073311 A

特許文献1の従来例では、放熱板の温度を検出する蓋センサと、蒸気排出経路の排出温度を検出する蒸気センサの2つで蒸気を検出し、早く移行温度に達したほうで炊飯量を判断する構成が示されている。また、蒸気センサによる沸騰検知を行う場合、調圧弁の動作により排出した蒸気を検出して、吹きこぼれを防止するために加熱量を低減するものである。   In the conventional example of Patent Document 1, steam is detected by two sensors, a lid sensor that detects the temperature of the heat radiating plate and a steam sensor that detects the discharge temperature of the steam discharge path, and the amount of rice cooked is the one that reaches the transition temperature earlier. The structure to judge is shown. Moreover, when performing boiling detection with a steam sensor, the amount of heating is reduced in order to detect the steam discharged by the operation of the pressure regulating valve and prevent spilling.

もし調圧弁の調圧機能が停止した場合、炊飯量が正確に測定できなくなり美味しいご飯が炊けなくなり、また、内鍋内に想定以上の圧力が加わるため、蓋が開かなくなり、蓋を開ける時には蓋が急激に開く可能性が考えられるが、使用者はそれを事前に知ることができなかった。   If the pressure regulating function of the pressure regulating valve is stopped, the amount of cooked rice cannot be measured accurately, and delicious rice cannot be cooked. Could open suddenly, but the user could not know it in advance.

かかる従来の問題を解決するため本発明では、本体と、該本体に収納される内釜と、前記本体の上部開口を覆う蓋と、該蓋に取り付けられ前記内釜の上部開口を覆う内蓋と、該内蓋に設けられ前記内釜内部の蒸気の排出を制限して一定の圧力に保つ調圧弁と、該調圧弁から排出された蒸気を前記蓋の外部に放出する蒸気通路と、前記内釜を加熱する加熱手段と、該加熱手段の電力を制御する制御手段とを設け、前記蓋には前記内釜内部の温度を検出する第一の温度センサと、前記蒸気通路には温度の変化によって前記調圧弁から蒸気の排出を検出する第二の温度センサとを設け、前記制御手段は、炊飯中に前記第二の温度センサが所定の温度以上に上昇せず、かつ炊飯の終了後に前記第一の温度センサが炊飯中の温度より所定温度以上低下しないとき、炊飯中に前記調圧弁が詰まる故障をしたものと判断して、音または表示によって異常を知らせるものである。   In order to solve such conventional problems, in the present invention, a main body, an inner hook accommodated in the main body, a lid covering the upper opening of the main body, and an inner lid attached to the lid and covering the upper opening of the inner hook A pressure regulating valve that is provided in the inner lid and restricts the discharge of the steam inside the inner pot and maintains a constant pressure; a steam passage that discharges the steam discharged from the pressure regulating valve to the outside of the lid; and A heating means for heating the inner pot and a control means for controlling the electric power of the heating means are provided, a first temperature sensor for detecting the temperature inside the inner pot is provided in the lid, and a temperature in the steam passage is provided. A second temperature sensor that detects the discharge of steam from the pressure regulating valve by a change, and the control means does not raise the second temperature sensor above a predetermined temperature during rice cooking, and after the end of rice cooking The first temperature sensor is lower than the temperature during cooking by a predetermined temperature or more. Itoki, it is determined that the pressure regulating valve has a fault that clogging during cooking is to inform the abnormality by sound or display.

本発明によれば、調圧弁の調圧機能が働かなくなり、内釜内の圧力が抜けなくなった場合に、使用者がそれを知ることができる。   According to the present invention, when the pressure regulating function of the pressure regulating valve does not work and the pressure in the inner hook cannot be released, the user can know it.

一実施例の炊飯器の断面を示す図である。It is a figure which shows the cross section of the rice cooker of one Example. 一実施例の炊飯器の加熱の例を示す図である。It is a figure which shows the example of the heating of the rice cooker of one Example. 他の実施例の炊飯器の加熱の例を示す図である。It is a figure which shows the example of the heating of the rice cooker of another Example. 他の実施例の炊飯器の断面を示す図である。It is a figure which shows the cross section of the rice cooker of another Example.

以下、図1〜図4を用いて本発明の一実施例について詳細に説明する。   Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

図1の炊飯器の断面図において、本体1に着脱自在の内釜2が収納され、本体1の上部開口を閉塞する蓋3が開閉自在に設けられている。蓋3には内釜2の上部開口を覆う内蓋4が設けられ、内蓋4の下面周縁部に取り付けられたパッキン14を内釜2の上端全周に当接して内釜2と内蓋4とで構成される空間を密閉状態に保持している。内蓋4には内釜2内部の蒸気の排出を制限して一定の圧力に保つ調圧弁5が取り付けられている。本実施例では、1.3気圧になると調圧弁5が動作し、調圧弁5から蓋3の蒸気通路6に蒸気を排出する。排出された蒸気は蒸気通路6を経て蓋3に設けられた排気口15から外部に放出される。   In the cross-sectional view of the rice cooker in FIG. 1, a detachable inner pot 2 is accommodated in the main body 1, and a lid 3 that closes the upper opening of the main body 1 is provided to be freely opened and closed. The lid 3 is provided with an inner lid 4 that covers the upper opening of the inner hook 2, and a packing 14 attached to the lower peripheral edge of the inner lid 4 is brought into contact with the entire upper end of the inner hook 2 to contact the inner hook 2 and the inner lid. 4 is kept in a sealed state. A pressure regulating valve 5 is attached to the inner lid 4 to restrict the discharge of steam inside the inner hook 2 and keep the pressure constant. In the present embodiment, when the pressure becomes 1.3 atm, the pressure regulating valve 5 operates and the steam is discharged from the pressure regulating valve 5 to the steam passage 6 of the lid 3. The discharged steam is discharged to the outside through an exhaust port 15 provided in the lid 3 through the steam passage 6.

本体1の内部には、内釜2を加熱する加熱手段7と、内釜2底部の温度を検出する釜底温度センサ13と、釜底温度センサ13の検出する温度情報に基づいて加熱手段7へ供給する電力を制御する制御手段8が設けられている。蓋3には、内釜2内部の温度を検出する第一の温度センサ9と、調圧弁5から蒸気通路6に排出した蒸気を一定の温度変化として検出する第二の温度センサ10を設けている。第一の温度センサ9は、内蓋4の穴部11から内釜2内部に露出するように設けられ、穴部11から蒸気が漏れないようシール部材12を介して蓋3に設けられている。第二の温度センサ10は、蒸気通路6に排出された蒸気によって起こる温度変化を捉えることで、調圧弁5が動作して蒸気を排出したことを検出する。第一の温度センサ9,第二の温度センサ10,釜底温度センサ13からの温度情報は制御手段8に伝えられ、それに応じて制御手段8は加熱手段7へ供給する電力を制御する。以上の構成において、その動作を説明する。   Inside the main body 1 are heating means 7 for heating the inner pot 2, a pot bottom temperature sensor 13 for detecting the temperature of the bottom of the inner pot 2, and heating means 7 based on temperature information detected by the pot bottom temperature sensor 13. Control means 8 for controlling the electric power supplied to is provided. The lid 3 is provided with a first temperature sensor 9 for detecting the temperature inside the inner pot 2 and a second temperature sensor 10 for detecting the steam discharged from the pressure regulating valve 5 to the steam passage 6 as a constant temperature change. Yes. The first temperature sensor 9 is provided so as to be exposed to the inside of the inner hook 2 from the hole portion 11 of the inner lid 4, and is provided on the lid 3 through the seal member 12 so that steam does not leak from the hole portion 11. . The second temperature sensor 10 detects a change in temperature caused by the steam discharged into the steam passage 6 to detect that the pressure regulating valve 5 has been operated and discharged the steam. Temperature information from the first temperature sensor 9, the second temperature sensor 10, and the bottom temperature sensor 13 is transmitted to the control means 8, and the control means 8 controls the power supplied to the heating means 7 accordingly. The operation of the above configuration will be described.

内釜2に米と適量の水を入れ炊飯開始操作(操作ボタンは図示せず)をすると、制御手段8は美味しくご飯を炊くように定められたプロセスに従って加熱手段7の加熱量を調整しながら内釜2を加熱して炊飯が進行する。   When rice and a proper amount of water are put into the inner pot 2 and a rice cooking start operation (the operation button is not shown) is performed, the control means 8 adjusts the heating amount of the heating means 7 according to a process determined to cook rice deliciously. The inner pot 2 is heated and rice cooking proceeds.

内釜2の加熱が進行して内釜2内部の水温が60℃を超えるころには湯気が内蓋4や第一の温度センサ9に結露しはじめ、結露によって湯気の熱が伝わり、内蓋4と第一の温度センサ9の温度が上昇し始める。   When the heating of the inner pot 2 proceeds and the water temperature inside the inner pot 2 exceeds 60 ° C., steam begins to condense on the inner lid 4 and the first temperature sensor 9, and the heat of the steam is transmitted by the dew condensation. 4 and the temperature of the first temperature sensor 9 begin to rise.

さらに、内釜2の加熱が進行すると水温が100℃に近づき湯気(以下蒸気)が激しく発生する。そうすると内蓋4と第一の温度センサ9の温度も100℃に近づく。   Further, as the heating of the inner pot 2 proceeds, the water temperature approaches 100 ° C. and steam (hereinafter referred to as steam) is generated vigorously. Then, the temperature of the inner lid 4 and the first temperature sensor 9 also approaches 100 ° C.

この時点では、内釜2内で発生した蒸気は調圧弁5によって蒸気通路6に排出されるのを規制されているため、蒸気圧によって内釜2内部の圧力がさらに上昇して高まる。   At this time, since the steam generated in the inner pot 2 is restricted from being discharged into the steam passage 6 by the pressure regulating valve 5, the pressure inside the inner pot 2 is further increased and increased by the steam pressure.

制御手段8は、第一の温度センサ9の温度が80℃になった時点で加熱手段7に供給する電力を弱めることで、内釜2内の圧力が一気に上昇して調圧弁5から蒸気が大量に排出されるのを防止する。本実施例では1000Wから800Wに弱める。このタイミングで加熱量を200W程度弱めても内釜2内部の圧力は上昇を続け、圧力の上昇に伴い沸点も高まり、1.1気圧では約103℃、1.2気圧では約105℃になる。   The control means 8 weakens the electric power supplied to the heating means 7 when the temperature of the first temperature sensor 9 reaches 80 ° C., so that the pressure in the inner pot 2 rises all at once and steam is generated from the pressure regulating valve 5. Prevent a large amount from being discharged. In this embodiment, the power is weakened from 1000 W to 800 W. Even if the heating amount is reduced by about 200 W at this timing, the pressure in the inner pot 2 continues to rise, and the boiling point increases as the pressure rises, and is about 103 ° C. at 1.1 atm and about 105 ° C. at 1.2 atm. .

内釜2内の温度がさらに上昇し、第一の温度センサ9で100℃以上を検出すると制御手段8は内釜2内部の圧力が大気圧以上になったと判断し、加熱手段7の加熱量をさらに800Wから400Wに弱め、さらに蒸気の発生を抑え、調圧弁5の動作する圧力内で炊飯を継続し、調圧弁5からの蒸気の排出を抑えるようにする。   When the temperature in the inner pot 2 further rises and the first temperature sensor 9 detects 100 ° C. or higher, the control means 8 determines that the pressure inside the inner pot 2 has become atmospheric pressure or higher, and the heating amount of the heating means 7 Is further reduced from 800 W to 400 W, further suppressing the generation of steam, continuing the cooking of rice within the pressure at which the pressure regulating valve 5 operates, and suppressing the discharge of steam from the pressure regulating valve 5.

これにより、内釜2内部は1.2気圧程度を維持し、105℃で炊飯継続しながら調圧弁5から蒸気を排出しない状態を続けることで、高温で美味に炊飯を継続することができる。   Thereby, the inside of the inner pot 2 maintains about 1.2 atm, and the rice cooking can be continued at 105 ° C. while continuing the state where steam is not discharged from the pressure regulating valve 5, so that the rice cooking can be continued deliciously at a high temperature.

しかるに炊飯の量や水加減などによって、加熱手段7の加熱量を400Wに弱めても1.3気圧まで上昇し調圧弁5が動作して蒸気を排出する場合がある。排出された蒸気は蒸気通路6を経て排気口15へと向かう。   However, even if the heating amount of the heating means 7 is weakened to 400 W due to the amount of cooked rice or water, the pressure rises to 1.3 atm and the pressure regulating valve 5 operates to discharge steam. The discharged steam is directed to the exhaust port 15 through the steam passage 6.

しかし、事前に加熱手段7への電力を低減しているので、調圧弁5を動作して蒸気通路6に排出される蒸気は少なく、蒸気通路6の経路にて蒸気が結露凝縮し、すぐには蒸気が排気口15から外部に排出されることはない。   However, since the electric power to the heating means 7 is reduced in advance, the pressure regulating valve 5 is operated so that less steam is discharged to the steam passage 6, and the steam condenses and condenses in the path of the steam passage 6. The steam is not exhausted from the exhaust port 15 to the outside.

そして、蒸気通路6に排出された蒸気によって第二の温度センサ10の温度が急上昇し、制御手段8は第二の温度センサ10が70℃になったことを検出すると、1分間加熱手段7への電力の供給を停止した後、300Wで内釜2の加熱を再開する。これにより内釜2内部の圧力は低下し、調圧弁5から蒸気が継続して排出されることは無くなり、内釜2内部の圧力が1.2気圧程度に保たれ、高温で美味に炊飯しながら外部に蒸気を排出しない炊飯ができる。   Then, when the temperature of the second temperature sensor 10 suddenly rises due to the steam discharged into the steam passage 6 and the control means 8 detects that the second temperature sensor 10 has reached 70 ° C., the control means 8 goes to the heating means 7 for 1 minute. After the supply of power is stopped, the heating of the inner pot 2 is resumed at 300 W. As a result, the pressure inside the inner pot 2 is reduced and the steam is not continuously discharged from the pressure regulating valve 5, the pressure inside the inner pot 2 is kept at about 1.2 atm, and the rice is cooked deliciously at high temperatures. While cooking rice, steam is not discharged.

炊飯が進行し、やがて内釜2の内部の水が無くなると内釜2底部の温度が急上昇し、釜底温度センサ13が120℃を超えると制御手段8は水が無くなったと判断し、加熱手段7への電力の供給を停止して、蒸らしの工程に移行する。   When rice cooking progresses and the water in the inner pot 2 disappears before long, the temperature at the bottom of the inner pot 2 rapidly rises, and when the pot bottom temperature sensor 13 exceeds 120 ° C., the control means 8 determines that the water has run out, and the heating means The power supply to 7 is stopped and the process proceeds to the steaming process.

蒸らしは、15分間の一定時間行われ、その間も温度の低下を防ぐために、加熱手段7が間欠的に動作する。蒸らしが終了する前には内釜2内部の温度が100℃以下に低下し、内部の圧力も大気圧に戻っている。   Steaming is performed for a certain period of 15 minutes, and the heating means 7 operates intermittently during this time to prevent a decrease in temperature. Before the steaming is completed, the temperature inside the inner pot 2 is lowered to 100 ° C. or lower, and the internal pressure is also returned to the atmospheric pressure.

本実施例では、制御手段8が第一の温度センサ9と第二の温度センサ10の温度で加熱手段7の加熱量を調整する一例を示したが、図3のように第二の温度センサ10で300Wに加熱を調整した後に、第一の温度センサ9の温度低下を検出したら再び加熱量を400Wに上げ、第二の温度センサ10の温度が再び上昇したら加熱量を300Wに下げるなど、随時加熱量を調整するようにしても良い。   In this embodiment, the control means 8 has shown an example in which the heating amount of the heating means 7 is adjusted by the temperatures of the first temperature sensor 9 and the second temperature sensor 10, but the second temperature sensor as shown in FIG. After adjusting the heating to 300 W at 10, if the temperature drop of the first temperature sensor 9 is detected, the heating amount is raised again to 400 W, and when the temperature of the second temperature sensor 10 rises again, the heating amount is lowered to 300 W, etc. You may make it adjust a heating amount at any time.

また、本実施例では第一の温度センサ9を内蓋4の穴部11から内釜2内部に露出するように設けたが、図4のように内蓋4の裏面の温度を検出するように設けても良い。   Further, in this embodiment, the first temperature sensor 9 is provided so as to be exposed to the inside of the inner hook 2 from the hole 11 of the inner lid 4, but the temperature of the back surface of the inner lid 4 is detected as shown in FIG. May be provided.

以上のようにして、第一の温度センサ9で内釜2の内部温度を、第二の温度センサ10で蒸気通路6に排出された蒸気の温度を検出することにより、調圧弁5の動作状況、すなわち内釜2内部に加わる圧力の状況を制御手段8が検知することができ、内釜2の内部を調圧弁5が動作しない範囲で、かつ大気圧以上の高い沸点で炊飯できるので、米のα化に必要とされる98℃以上を維持でき、美味に炊飯できる。   As described above, the first temperature sensor 9 detects the internal temperature of the inner pot 2, and the second temperature sensor 10 detects the temperature of the steam discharged to the steam passage 6. That is, the control means 8 can detect the state of the pressure applied to the inside of the inner pot 2, and the inside of the inner pot 2 can be cooked in a range where the pressure regulating valve 5 does not operate and at a high boiling point above atmospheric pressure. It is possible to maintain 98 ° C. or higher, which is required for the pregelatinization, and to cook deliciously.

また、排気口15から室内に蒸気を排出しないので、室内の湿度が上がって環境が悪化したり、近傍に結露して壁や家具を傷めたりすることもない。蒸気を外部に排出しないので、排出される蒸気で火傷を負う恐れもなく安全性の高い炊飯器が提供できる。   Further, since steam is not discharged from the exhaust port 15 into the room, the humidity in the room is not increased, the environment is not deteriorated, and the wall and furniture are not damaged by condensation in the vicinity. Since the steam is not discharged to the outside, a highly safe rice cooker can be provided without the risk of being burned by the discharged steam.

さらに、大気圧以上を維持するのに必要な加熱量を調整するので、消費電力量も少なく、省エネルギーな炊飯器が提供できる。   Furthermore, since the amount of heating necessary to maintain the atmospheric pressure or higher is adjusted, an energy-saving rice cooker with less power consumption can be provided.

次に、調圧弁5に不具合が発生し調圧機能を失った場合について説明する。   Next, a case where a malfunction occurs in the pressure regulating valve 5 and the pressure regulating function is lost will be described.

例えば、調圧弁5に食材が詰まるなどして故障した場合、内釜2内部の圧力が炊飯を終了しても抜けなくなる現象が想定できる。本発明の構成によれば、調圧弁5に食材が詰まるなどして故障した状態では、蒸気が蒸気通路6に放出することがないので、第二の温度センサ10は、所定以上の温度変化を検出することはできない。そして、内釜2内部は高圧となり高温を維持するため、炊飯を終了したのにも関わらず、第一の温度センサ9は、100℃以上の高温を維持する。   For example, when the pressure regulating valve 5 is broken due to food clogging, a phenomenon can be assumed in which the pressure inside the inner pot 2 does not come out even after cooking. According to the configuration of the present invention, in the state in which the pressure regulating valve 5 is clogged with food, for example, the steam is not released into the steam passage 6, so the second temperature sensor 10 changes the temperature more than a predetermined value. It cannot be detected. And since the inside of the inner pot 2 becomes a high pressure and maintains a high temperature, the first temperature sensor 9 maintains a high temperature of 100 ° C. or higher despite the completion of rice cooking.

つまり、調圧弁5が正常時は、炊飯中に第二の温度センサ10が所定の温度以上に上昇するが、調圧弁5に食材が詰まるなどして故障をした場合は、炊飯中に第二の温度センサ10が所定の温度以上に上昇しない。   That is, when the pressure regulating valve 5 is normal, the second temperature sensor 10 rises to a predetermined temperature or higher during rice cooking, but when the pressure regulating valve 5 malfunctions due to clogging of food, the second temperature sensor 10 rises during rice cooking. Temperature sensor 10 does not rise above a predetermined temperature.

また調圧弁5が正常時は、炊飯の終了後に第一のセンサ9が炊飯中の温度から所定の温度以上に低下するが、調圧弁5に食材が詰まるなどして故障をした場合は、炊飯の終了後に第一センサが炊飯中の温度から所定の温度以上に低下しない。   In addition, when the pressure regulating valve 5 is normal, the first sensor 9 decreases from the temperature during cooking to a predetermined temperature or higher after the completion of rice cooking, but if the pressure regulating valve 5 is clogged with food, The first sensor does not fall below the predetermined temperature from the temperature during cooking after the end of the process.

この調圧弁5が正常時と調圧弁5に食材が詰まるなどして故障をした場合の、第一の温度センサ9,第二の温度センサ10の温度の違いを制御手段8が判断し、炊飯中に調圧弁5が詰まる故障をしたものと判断して、音,表示ランプなどの報知手段で異常を知らせることで、万が一に調圧弁5が故障した場合においても安全性の高い炊飯器を提供することができる。   The control means 8 determines the difference in temperature between the first temperature sensor 9 and the second temperature sensor 10 when the pressure regulating valve 5 is in a normal state and when the pressure regulating valve 5 fails due to food clogging, etc. Provided a rice cooker with high safety even if the pressure regulating valve 5 breaks down by judging that the pressure regulating valve 5 has failed and notifying the abnormality by means of sound, indicator lamps, etc. can do.

1 本体
2 内釜
3 蓋
4 内蓋
5 調圧弁
6 蒸気通路
7 加熱手段
8 制御手段
9 第一の温度センサ
10 第二の温度センサ
11 穴部
12 シール部材
13 釜底温度センサ
DESCRIPTION OF SYMBOLS 1 Main body 2 Inner hook 3 Lid 4 Inner lid 5 Pressure regulating valve 6 Steam passage 7 Heating means 8 Control means 9 First temperature sensor 10 Second temperature sensor 11 Hole 12 Seal member 13 Bottom temperature sensor

Claims (1)

本体と、該本体に収納される内釜と、前記本体の上部開口を覆う蓋と、該蓋に取り付けられ前記内釜の上部開口を覆う内蓋と、該内蓋に設けられ前記内釜内部の蒸気の排出を制限して一定の圧力に保つ調圧弁と、該調圧弁から排出された蒸気を前記蓋の外部に放出する蒸気通路と、前記内釜を加熱する加熱手段と、該加熱手段の電力を制御する制御手段とを設けた炊飯器であって、
前記蓋には、前記内釜内部の温度を検出する第一の温度センサと、前記蒸気通路には温度の変化によって前記調圧弁から蒸気の排出を検出する第二の温度センサとを設け、
前記制御手段は、炊飯中に前記第二の温度センサが所定の温度以上に上昇せず、かつ炊飯の終了後に前記第一の温度センサが炊飯中の温度より所定温度以上低下しないときに、音または表示によって異常を知らせることを特徴とする炊飯器。
A main body, an inner hook accommodated in the main body, a lid covering the upper opening of the main body, an inner lid attached to the lid and covering the upper opening of the inner hook, and provided in the inner lid, A pressure regulating valve that restricts the discharge of the steam to maintain a constant pressure, a steam passage that discharges the steam discharged from the pressure regulating valve to the outside of the lid, a heating means for heating the inner pot, and the heating means A rice cooker provided with a control means for controlling the power of
The lid is provided with a first temperature sensor for detecting the temperature inside the inner pot, and the steam passage is provided with a second temperature sensor for detecting the discharge of steam from the pressure regulating valve due to a change in temperature,
The control means generates a sound when the second temperature sensor does not rise above a predetermined temperature during rice cooking, and when the first temperature sensor does not drop more than a predetermined temperature from the temperature during rice cooking after the completion of rice cooking. Or the rice cooker characterized by notifying abnormality by a display.
JP2011095634A 2011-04-22 2011-04-22 Rice cooker Withdrawn JP2012223473A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107191981A (en) * 2017-07-04 2017-09-22 谢勇 Electricthermal furnace provided with movable steam detection means
CN107536460A (en) * 2017-05-19 2018-01-05 浙江苏泊尔家电制造有限公司 Cooking apparatus and the method for heating and controlling for cooking apparatus
CN109090982A (en) * 2018-09-04 2018-12-28 珠海格力电器股份有限公司 Pot and anti-overflow method thereof
WO2019006950A1 (en) * 2017-07-03 2019-01-10 佛山市顺德区美的电热电器制造有限公司 Heating control method and apparatus, electromagnetic heating cookware and machine-readable storage medium
CN115381277A (en) * 2022-09-14 2022-11-25 珠海格力电器股份有限公司 Pressure cooker control method and device and pressure cooker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107536460A (en) * 2017-05-19 2018-01-05 浙江苏泊尔家电制造有限公司 Cooking apparatus and the method for heating and controlling for cooking apparatus
WO2019006950A1 (en) * 2017-07-03 2019-01-10 佛山市顺德区美的电热电器制造有限公司 Heating control method and apparatus, electromagnetic heating cookware and machine-readable storage medium
CN107191981A (en) * 2017-07-04 2017-09-22 谢勇 Electricthermal furnace provided with movable steam detection means
CN109090982A (en) * 2018-09-04 2018-12-28 珠海格力电器股份有限公司 Pot and anti-overflow method thereof
CN115381277A (en) * 2022-09-14 2022-11-25 珠海格力电器股份有限公司 Pressure cooker control method and device and pressure cooker

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