JP2011194021A - Rice cooker - Google Patents
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- JP2011194021A JP2011194021A JP2010063806A JP2010063806A JP2011194021A JP 2011194021 A JP2011194021 A JP 2011194021A JP 2010063806 A JP2010063806 A JP 2010063806A JP 2010063806 A JP2010063806 A JP 2010063806A JP 2011194021 A JP2011194021 A JP 2011194021A
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Abstract
Description
本発明は、炊飯中に排出される蒸気の低温化をはかった炊飯器に関するものである。 The present invention relates to a rice cooker designed to reduce the temperature of steam discharged during rice cooking.
従来の炊飯器を、図４、図５において説明する。４０は炊飯器本体、４１は調理物を入れる鍋、４２は前記鍋を加熱する加熱手段、４３は鍋４１の開口部を閉止する蓋、４４は前記蓋４３内に設けられた蒸気通路で、一端を鍋４１の開口部空間と連結し、もう一方は排気口４５に連結され鍋４１内で発生した蒸気を外気へ放出させる。４６は送風手段で吸気口４７より外気を取り込み、炊飯中に排出される蒸気へ送風して蒸気の濃度を下げ、空気混合蒸気を蓋本体の前方に排出するようにしたもの（例えば、特許文献１参照）、あるいは空気混合蒸気を蓋本体の上方から排出するようにしたもの（例えば、特許文献２参照）、などが知られている。 The conventional rice cooker is demonstrated in FIG. 4, FIG. 40 is a rice cooker body, 41 is a pan for putting food, 42 is a heating means for heating the pan, 43 is a lid for closing the opening of the pan 41, 44 is a steam passage provided in the lid 43, One end is connected to the opening space of the pan 41, and the other is connected to the exhaust port 45 to release the steam generated in the pan 41 to the outside air. 46 is a blowing means that takes in outside air from the intake port 47, blows it to the steam discharged during rice cooking, lowers the concentration of the steam, and discharges the air-mixed steam to the front of the lid body (for example, patent document) 1), or one in which air-mixed vapor is discharged from above the lid body (for example, see Patent Document 2).
しかしながら、前記従来の構成では、排気温度が高くなる異常状態になった場合でも動作が停止せずやけどの危険があった。 However, in the conventional configuration, even in an abnormal state where the exhaust gas temperature becomes high, the operation does not stop and there is a risk of burns.
本発明は、前記従来の課題を解決するもので、蓋本体の大型化を抑制して蓋操作の使い勝手がよく、排気温度が高くなる異常状態になった場合、機器を確実に停止し、さらに安全性を高めた炊飯器を提供することを目的とする。 The present invention solves the above-mentioned conventional problems, and it is easy to use the lid operation by suppressing the enlargement of the lid body, and when an abnormal state occurs in which the exhaust temperature becomes high, the device is surely stopped, It aims at providing the rice cooker which raised safety.
炊飯器本体と、炊飯器本体の内部に形成された鍋収納部に収納される鍋と、鍋を加熱する鍋加熱手段と、炊飯器本体の開口部を開閉可能な蓋本体と、蓋本体内に配置された送風手段と、送風手段の一方に連結された吸気口と送風手段に設けられた送風手段の回転数を検知する回転数検知手段と、前記送風手段の一端を連結するとともに他端を外気と連通する排気口とした送風経路と、一端を送風経路と連結するとともに他端を鍋内と連通させた蒸気経路とを備え、前記送風手段と送風経路を蓋本体の後部に組み込むとともに、排気口を蓋本体の上面に開口し、前記送風径路と排気口間の送風径路の径路全体覆う傾斜を有したメッシュを備え、送風手段の回転数があらかじめ設定された異常回転数を超えた時に報知する報知手段を具備した炊飯器である。 A rice cooker body, a pot stored in a pot storage portion formed inside the rice cooker body, a pot heating means for heating the pot, a lid body capable of opening and closing the opening of the rice cooker body, and the lid body The blower unit disposed on the blower unit, the inlet connected to one of the blower units, the rotation number detection unit for detecting the rotation number of the blower unit provided on the blower unit, and one end of the blower unit and the other end And a steam path in which one end is connected to the blow path and the other end is connected to the inside of the pan, and the blowing means and the blow path are incorporated in the rear part of the lid body. The exhaust port is opened on the upper surface of the lid body, and includes a mesh having an inclination that covers the entire route of the air passage between the air passage and the air outlet, and the rotational speed of the air blowing means exceeds a preset abnormal rotational speed. Cooking rice equipped with notification means to notify sometimes It is.
吸気口または排気口に異物が詰る等の現象が発生し、送風径路の抵抗が上昇すると送風手段から発生する気流が減少するため、排気口から排出される排気温度が上昇する。また、送風経路の抵抗が大きくなると送風手段の回転数が上昇する、即ち、排気口から排出される排気温度と送風手段の回転数には相関がある。したがって、排気温度が所定の温度になった時の送風手段の回転数を異常回転数と設定することで、送風手段の回転数が異常回転数より高くなった場合、排気温度が所定の温度になったと判断し報知手段より報知することで安全性を高めることができる。 When a phenomenon such as clogging of foreign matter occurs in the intake port or the exhaust port and the resistance of the air flow path increases, the air flow generated from the air blowing means decreases, and thus the exhaust temperature discharged from the exhaust port increases. Further, when the resistance of the air blowing path increases, the rotational speed of the air blowing means increases, that is, there is a correlation between the exhaust temperature discharged from the exhaust port and the rotational speed of the air blowing means. Therefore, by setting the rotational speed of the blower when the exhaust temperature reaches a predetermined temperature as the abnormal rotational speed, when the rotational speed of the blower becomes higher than the abnormal rotational speed, the exhaust temperature becomes the predetermined temperature. Safety can be improved by judging that it has become, and alerting | reporting from an alerting | reporting means.
送風径路と排気口間の送風径路を閉止するメッシュを備えることによってコキブリ等害
虫の炊飯器内への侵入を防ぐことができるが、ユニット内で炊飯するなどして湿度の高い空気を吸い込んだ場合、メッシュ部に結露水が付着し、吸気口または排気口に異物が詰る等と同様の現象が生じることがある。メッシュ部を傾けることにより、メッシュに付着した水滴が落下し送風径路抵抗の増加が抑えられる。
Insects such as cockroaches can be prevented from entering the rice cooker by providing a mesh that closes the air passage between the air passage and the exhaust port, but when humid air is inhaled by cooking in the unit, etc. In some cases, condensed water adheres to the mesh portion and foreign matter is clogged in the intake port or the exhaust port. By tilting the mesh portion, water droplets attached to the mesh fall and increase in the blowing path resistance is suppressed.
本発明の炊飯器は、排気温度が高くなる異常状態になった場合、機器を確実に停止しさらに安全性を高めることができる。 The rice cooker of this invention can stop an apparatus reliably and can improve safety | security further, when it will be in the abnormal state where exhaust temperature becomes high.
第１の発明は、炊飯器本体と、炊飯器本体の内部に形成された鍋収納部に収納される鍋と、鍋を加熱する鍋加熱手段と、炊飯器本体の開口部を開閉可能な蓋本体と、蓋本体内に配置された送風手段と、送風手段の一方に連結された吸気口と送風手段に設けられた送風手段の回転数を検知する回転数検知手段と、前記送風手段の一端を連結するとともに他端を外気と連通する排気口とした送風経路と、一端を送風経路と連結するとともに他端を鍋内と連通させた蒸気経路とを備え、前記送風手段と送風経路を蓋本体の後部に組み込むとともに、排気口を蓋本体の上面に開口し、前記送風径路と排気口間の送風径路の径路全体覆う傾斜を有したメッシュを備え、送風手段の回転数があらかじめ設定された異常回転数を超えた時に報知する報知手段を具備した炊飯器である。 1st invention is a lid | cover which can open and close the opening part of the rice cooker main body, the pan accommodated in the pan accommodating part formed in the inside of a rice cooker main body, the pan heating means which heats a pan, and a rice cooker main body A main body, a blowing means arranged in the lid body, an air inlet connected to one of the blowing means, a rotation speed detecting means for detecting the rotation speed of the blowing means provided in the blowing means, and one end of the blowing means And a steam path having one end connected to the blower path and the other end connected to the inside of the pan, and the blower means and the blower path are covered. Incorporated into the rear part of the main body, an exhaust port is opened on the upper surface of the lid main body, provided with a mesh having an inclination covering the entire air passage between the air passage and the air outlet, and the rotation speed of the air blowing means is preset Notifying means for notifying when the abnormal rotational speed is exceeded Is a rice cooker equipped.
吸気口または排気口に異物が詰る等の現象が発生し送風径路の抵抗が上昇すると送風手段から発生する気流が減少するため、排気口から排出される排気温度が上昇する。また、送風経路の抵抗が大きくなると送風手段の回転数が上昇する、即ち、排気口から排出される排気温度と送風手段の回転数には相関がある。したがって、排気温度が所定の温度になった時の送風手段の回転数を異常回転数と設定することで、前記送風手段の回転数が異常回転数より高くなった場合、排気温度が所定の温度になったと判断し報知手段より報知することで安全性を高めることができる。 When a phenomenon such as clogging of foreign matter occurs in the intake port or the exhaust port and the resistance of the air flow path increases, the air flow generated from the air blowing means decreases, and the exhaust temperature discharged from the exhaust port increases. Further, when the resistance of the air blowing path increases, the rotational speed of the air blowing means increases, that is, there is a correlation between the exhaust temperature discharged from the exhaust port and the rotational speed of the air blowing means. Therefore, when the rotation speed of the blower when the exhaust temperature reaches a predetermined temperature is set as an abnormal rotation speed, the exhaust temperature becomes a predetermined temperature when the rotation speed of the blower becomes higher than the abnormal rotation speed. The safety can be enhanced by determining that it has become and notifying from the notification means.
送風径路と排気口間の送風径路を閉止するメッシュを備えることによってコキブリ等害虫の炊飯器内への侵入を防ぐことができるがユニット内で炊飯するなどして湿度の高い空気を吸い込んだ場合、メッシュ部に結露水が付着し、吸気口または排気口に異物が詰る等と同様の現象が生じることがある。メッシュ部を傾けることにより、メッシュに付着した水滴が落下し送風径路抵抗の増加が抑えられる。 Intrusion of harmful insects such as cockroaches into the rice cooker can be prevented by providing a mesh that closes the ventilation path between the ventilation path and the exhaust port, but when humid air is sucked in such as cooking in the unit, Condensed water may adhere to the mesh portion, and the same phenomenon may occur as foreign matter is clogged in the intake or exhaust port. By tilting the mesh portion, water droplets attached to the mesh fall and increase in the blowing path resistance is suppressed.
第２の発明は、特に、第１の発明において、排気口外面に傾斜面を有するリブを設け、メッシュはリブに溶着することにより、メッシュが排気口を確実に閉止することができ、ゴキブリ等の害虫が本体内に入ることを防止できるとともに、メッシュの取り付け強度が向上し信頼性が向上する。 In particular, in the second invention, in the first invention, a rib having an inclined surface is provided on the outer surface of the exhaust port, and the mesh is welded to the rib, so that the mesh can reliably close the exhaust port, such as a cockroach or the like. Insect pests can be prevented from entering the main body, and the attachment strength of the mesh is improved and the reliability is improved.
第３の発明は、特に、第１または第２の発明において、送風手段に回転数検知手段を設け回転数検知手段の出力信号が所定の回転異常閾値を越えたときに、加熱手段の通電を停止し、送風手段の回転数を継続して検出し、所定時間検出した後に報知することにより、吸気口または排気口に異物が詰る等の現象が発生して送風手段の回転異常閾値になった時
、加熱手段の通電を停止することで排気の温度があがることは無い。また、加熱手段の通電を止めることで発生する蒸気量が少なくなり、通風手段を所定時間継続させて動作させることで、メッシュ部に水滴が付着した露が落下しやすくなり、送風手段の回転数が下がる。回転数が異常回転数を下回った時は、通常の炊飯工程に復帰させることで誤検知を回避できる。
In the third invention, in particular, in the first or second invention, when the rotation speed detection means is provided in the blower means and the output signal of the rotation speed detection means exceeds a predetermined rotation abnormality threshold, the heating means is energized. Stopping, continuously detecting the rotation speed of the air blowing means, and notifying after detecting for a predetermined time, caused a phenomenon such as foreign matter clogging in the intake or exhaust port, and became the rotation abnormality threshold of the air blowing means At this time, the temperature of the exhaust does not rise by stopping the energization of the heating means. In addition, the amount of steam generated by stopping energization of the heating means is reduced, and by operating the ventilation means for a predetermined time, dew with water droplets attached to the mesh portion is likely to fall, and the rotation speed of the blowing means Go down. When the rotational speed falls below the abnormal rotational speed, erroneous detection can be avoided by returning to the normal rice cooking process.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
（実施の形態１）
図１、図２は、本発明の実施の形態１における炊飯器を示している。
(Embodiment 1)
1 and 2 show a rice cooker according to Embodiment 1 of the present invention.
図に示すように、本実施の形態における炊飯器は、炊飯器本体１と、炊飯器本体１内部に形成された鍋収納部１ａに収納される鍋２と、炊飯器本体１の開口部を開閉可能に炊飯器本体１に取り付けられる蓋本体３と、蓋本体３の内側（鍋２の開口部を覆う側）に着脱自在に取り付けられて、鍋２の開口部を密閉可能な略円盤状の内蓋４と、鍋２を誘導加熱する鍋加熱装置５とを有している。 As shown to a figure, the rice cooker in this Embodiment has the rice cooker main body 1, the pot 2 accommodated in the pan accommodating part 1a formed in the rice cooker main body 1 inside, and the opening part of the rice cooker main body 1. As shown in FIG. A lid body 3 that is attached to the rice cooker body 1 so as to be openable and closable, and a substantially disk-like shape that is detachably attached to the inside of the lid body 3 (the side that covers the opening of the pan 2) and can seal the opening of the pan 2 And a pan heating device 5 for inductively heating the pan 2.
炊飯器本体１の鍋収納部１ａは、炊飯器本体１の上部開口の内周部に嵌合された略環状の上枠１ｂと、鍋２の形状に対応して有底円筒形状に形成され、上部開口側端部で上枠１ｂに一体的に接続されたコイルベース１ｃとで構成されている。 The pot storage portion 1 a of the rice cooker body 1 is formed in a bottomed cylindrical shape corresponding to the shape of the substantially annular upper frame 1 b fitted into the inner periphery of the upper opening of the rice cooker body 1 and the pot 2. The coil base 1c is integrally connected to the upper frame 1b at the upper opening side end.
コイルベース１ｃの外周面には、鍋加熱装置５を構成する底内コイル５ａと底外コイル５ｂとが取り付けられている。底内コイル５ａは、コイルベース１ｃを介して鍋２の底部の中央部周囲に対向するように配置されており、底外コイル５ｂは、コイルベース１ｃを介して鍋２の底部のコーナー部に対向するように配置されている。 An inner bottom coil 5a and an outer bottom coil 5b constituting the pot heating device 5 are attached to the outer peripheral surface of the coil base 1c. The bottom inner coil 5a is disposed so as to face the periphery of the center of the bottom of the pan 2 via the coil base 1c, and the bottom outer coil 5b is disposed at the corner of the bottom of the pan 2 via the coil base 1c. It arrange | positions so that it may oppose.
コイルベース１ｃの底部の中央部分には開口が設けられており、当該開口部分には、鍋２の温度を測定するための鍋温度検知装置の一例である鍋温度センサ６が鍋２の底部に当接可能に配置されている。 An opening is provided in the central portion of the bottom of the coil base 1 c, and a pan temperature sensor 6, which is an example of a pan temperature detecting device for measuring the temperature of the pan 2, is provided at the bottom of the pan 2. It arrange | positions so that contact | abutment is possible.
炊飯器本体１内には、各部及び各装置を駆動制御して炊飯動作を行う制御装置７が設置されている。制御装置７は、例えば蓋本体３に設けられた操作パネル（図示せず）を使用して行った使用者の指示に応じて、各部及び各装置の駆動制御を行う。 In the rice cooker main body 1, a control device 7 is installed that drives and controls each unit and each device to perform a rice cooking operation. The control device 7 performs drive control of each unit and each device in accordance with a user instruction performed using, for example, an operation panel (not shown) provided on the lid body 3.
炊飯器本体１の前壁上部（図１の左側上部）には、蓋本体３のフック８に係合可能なフック１ｄが設けられている。フック１ｄと上枠１ｂとの間にはバネ１ｅが設けられている。フック１ｄは、バネ１ｅにより前方（図１の左側）に付勢されている。 A hook 1 d that can be engaged with the hook 8 of the lid body 3 is provided on the upper part of the front wall of the rice cooker body 1 (upper left side in FIG. 1). A spring 1e is provided between the hook 1d and the upper frame 1b. The hook 1d is biased forward (left side in FIG. 1) by a spring 1e.
蓋本体３には、蓋温度検知装置の一例である内蓋温度センサ９と、内蓋加熱装置１０と、ヒンジ軸Ａと、ファンなどよりなる送風手段１１と、送風手段吸気側１１ａと外気を連通させる吸気口１２と、送風手段１１からの気流を蓋本体３外側へ導出する排気口１３とを連通接続する送風経路１５と、鍋２と送風経路１５とを連通接続する蒸気経路１６とが設けられている。また、送風手段１１には送風手段１１の回転数を知らせるパルス出力をだす出力手段１１ｃ（図示せず）を備えている。 The lid body 3 includes an inner lid temperature sensor 9, which is an example of a lid temperature detection device, an inner lid heating device 10, a hinge shaft A, an air blowing means 11 including a fan, an air blowing means intake side 11 a and outside air. A ventilation path 15 that communicates and connects the intake port 12 that communicates with the exhaust port 13 that leads the airflow from the blowing means 11 to the outside of the lid body 3, and a steam path 16 that communicates and connects the pan 2 and the ventilation path 15. Is provided. Further, the air blowing means 11 is provided with an output means 11c (not shown) for outputting a pulse output that informs the rotation speed of the air blowing means 11.
内蓋加熱装置１０は、蓋本体３内に設置され、制御装置７の制御により内蓋４を誘導加熱するよう構成されている。ヒンジ軸Ａは、蓋本体３の開閉軸であり、炊飯器本体１の上枠１ｃに両端部を回動自在に固定されている。蓋本体３はヒンジ軸Ａの近傍に設けた回動バネ（図示せず）により回動する。送風手段１１および送風経路１５は、蓋本体３の後部
でヒンジ軸Ａに近い場所に組み込まれて配置されている。吸気口１２は蓋本体３の横側面に複数のスリット上の穴で構成されている。
The inner lid heating device 10 is installed in the lid body 3 and is configured to inductively heat the inner lid 4 under the control of the control device 7. The hinge axis A is an opening / closing axis of the lid body 3, and both ends thereof are fixed to the upper frame 1 c of the rice cooker body 1 so as to be freely rotatable. The lid body 3 is rotated by a rotation spring (not shown) provided in the vicinity of the hinge axis A. The air blowing means 11 and the air blowing path 15 are incorporated and arranged at a location near the hinge axis A at the rear part of the lid body 3. The air inlet 12 is formed of holes on a plurality of slits on the side surface of the lid body 3.
排気口１３は、吸気口１２とは対面の蓋本体３の後部天面に開口しており、かつ排気口１３には、傾斜したリブ１３ａを設けこのリブ１３ａを閉止するようにしてメッシュ１４が溶着されている。メッシュの穴は１□以上で、ほこり等が詰まりにくい大きさにするとともに、５□以下に設定し、ゴキブリ等の害虫が送風径路１５内に侵入することを防止するものである。 The exhaust port 13 is open to the rear top surface of the lid body 3 facing the intake port 12, and the exhaust port 13 is provided with an inclined rib 13a so that the mesh 14 is closed so as to close the rib 13a. It is welded. The mesh hole has a size of 1 □ or more and is set to a size that prevents dust and the like from being clogged, and is set to 5 □ or less to prevent insects such as cockroaches from entering the air flow path 15.
送風経路１５は、略直線状に送風手段１１と排気口１３を連結しており、断面積もほぼ均一である。蒸気経路１６は、鍋２内の余分な蒸気を送風経路１５へと排出できるように、一端を内蓋４の蒸気口４ａと連通接続し、他端を送風経路１５の排気口１３と送風手段１１との間の下部の一部と連通接続している。 The air blowing path 15 connects the air blowing means 11 and the exhaust port 13 in a substantially linear shape, and the cross-sectional area is also substantially uniform. One end of the steam path 16 is connected to the steam port 4a of the inner lid 4 so that excess steam in the pan 2 can be discharged to the blowing path 15, and the other end is connected to the exhaust port 13 of the blowing path 15 and the blowing means. 11 is connected in communication with a part of the lower part.
内蓋４の一部は、誘導加熱が可能なステンレスなどの金属で構成されており、蒸気を鍋２外へと排出するために、複数の穴からなる蒸気口４ａを設けている。内蓋４の外周部の鍋２側の面には、蓋本体３が閉状態にあるとき、鍋２と密接する略環状の内蓋パッキン１７が取り付けられている。内蓋パッキン１７は、ゴムなどの弾性体で構成されている。 A part of the inner lid 4 is made of a metal such as stainless steel capable of induction heating, and is provided with a steam port 4a composed of a plurality of holes in order to discharge steam to the outside of the pan 2. A substantially annular inner lid packing 17 that is in close contact with the pan 2 when the lid body 3 is in the closed state is attached to the surface of the outer peripheral portion of the inner lid 4 on the pan 2 side. The inner lid packing 17 is made of an elastic body such as rubber.
蓋本体３の外表面には、炊飯のメニュー、時間などの各種情報を表示する表示手段１８と、炊飯の開始、取り消し、予約などの実行を行うための操作ボタン１９が搭載されている。 On the outer surface of the lid main body 3, a display means 18 for displaying various information such as a rice cooking menu and time, and an operation button 19 for starting, canceling, or making a reservation for cooking rice are mounted.
２０は炊飯プログラムを記憶し実行するためのコンピューターで、前記送風手段１１の回転数を知らせるパルス出力をだす出力手段１１ｃの信号を読取り送風手段１１の回転数を検知する回転数検知手段２２（図示せず）を構成している。２３は本体が動作中のデーターを読み込みあるいは書き込みができる記憶手段を具備している。記憶手段２３には、あらかじめ、送風手段１１の回転異常閾値２３ｂが記憶されている。 Reference numeral 20 denotes a computer for storing and executing a rice cooking program, which reads the signal of the output means 11c that gives a pulse output informing the rotation speed of the blower means 11 and detects the rotation speed of the blower means 11 (see FIG. (Not shown). Reference numeral 23 denotes a storage means that can read or write data during operation of the main body. In the storage unit 23, a rotation abnormality threshold 23b of the blower unit 11 is stored in advance.
操作ボタン１９の操作により、炊飯器本体１に内蔵された制御装置７に内蔵された炊飯プログラムが実行され、前記鍋加熱装置５、内蓋加熱コイル１０を炊飯プログラムの進行に合わせて動作、停止させて炊飯を実施するとともに、送風装置１１に関しても、制御装置７により、炊飯工程に連動して、動作、停止が制御されることとなる。 By the operation of the operation button 19, the rice cooking program incorporated in the control device 7 incorporated in the rice cooker body 1 is executed, and the pan heating device 5 and the inner lid heating coil 10 are operated and stopped according to the progress of the rice cooking program. While performing rice cooking, also regarding the air blower 11, operation | movement and a stop will be controlled by the control apparatus 7 in conjunction with a rice cooking process.
以上のように構成された炊飯器について、以下その動作、作用について説明する。 About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、鍋２内に所定の米と水をセットし、操作ボタン１９で、炊飯メニューを選択し、炊飯開始ボタンを押下することで、炊飯工程が開始される。炊飯工程は、水を一定温度に保って米に水を吸収させる浸せき工程、鍋２を鍋加熱装置５により一気に加熱し、鍋２内の水を沸騰状態にする炊き上げ工程、鍋２内の水がほとんどなくなった状態で加熱を抑える蒸らし工程からなり、これらの工程の間に米の糊化を進めて炊飯する。制御装置７は鍋底センサ５により鍋２の温度に応じて最適に鍋加熱装置５を制御し、あらかじめ決められた炊飯プログラムに従って炊飯を行う。炊飯プログラムは米の種類などによって複数のコースが準備されている。この蒸らし工程が終了すると炊飯が終了し、自動的に保温工程へと移行し、炊き上がったご飯の温度が低下しないようにして、使用者がいつでも温かいご飯を得られる。 First, predetermined rice and water are set in the pan 2, the rice cooking menu is selected with the operation buttons 19, and the rice cooking start button is pressed to start the rice cooking process. The rice cooking process is a soaking process in which the water is kept at a constant temperature and the rice absorbs water, the pot 2 is heated at once by the pot heating device 5 and the water in the pot 2 is boiled, the cooking process in the pot 2 It consists of a steaming process that suppresses heating while water is almost gone. During these processes, rice is gelatinized and cooked. The control device 7 optimally controls the pan heating device 5 according to the temperature of the pan 2 by the pan bottom sensor 5 and performs rice cooking according to a predetermined rice cooking program. There are several courses in the rice cooking program depending on the type of rice. When this steaming process ends, cooking rice ends, and the process automatically shifts to a heat retaining process, so that the temperature of the cooked rice does not decrease, and the user can always obtain warm rice.
炊飯プログラム実行による動作の詳細を以下に説明する。炊飯が開始されると、まず米に水を吸収させる浸せき工程が始まる。制御装置７は、鍋加熱装置５により鍋２を加熱し、鍋２内の水の温度を鍋底センサ５によって検知し、米の糊化が始まらない温度（約６０
℃未満）に調整して米の吸水を促進する。
The detail of the operation | movement by rice cooking program execution is demonstrated below. When rice cooking is started, the soaking process is first started. The control device 7 heats the pan 2 with the pan heating device 5, detects the temperature of the water in the pan 2 with the pan bottom sensor 5, and the temperature at which gelatinization of the rice does not start (about 60).
To less than ℃) to promote water absorption of rice.
炊き上げ工程では、米に水と熱を加えて糊化を進行させる。制御装置７は、鍋加熱装置５を動作させて鍋２を急速に加熱し、鍋２内の水を沸騰状態とする。このとき連続的に沸騰が生じて蒸気が大量に発生する。発生した蒸気が鍋２を充満すると、余分な蒸気は蒸気経路１６に入り込み、送風経路１５内に入り込む。制御装置７は、鍋２内の水が沸騰したことを鍋温度センサ６により検知し、ファン１１を動作させる。ファン１１は吸気口１２から外気を吸い込み、室温の空気を送風経路１５へと導入する。蒸気経路１６から送風経路１５へ導かれた蒸気は室温の空気と混合され、この空気と蒸気の混合流体が、蓋本体３の側面の排出口１３から外へと排出される。空気と混合することで、蒸気の濃度を低減することができるので、排出される混合流体の温度は低下する。 In the cooking process, water and heat are added to the rice to cause gelatinization. The control device 7 operates the pan heating device 5 to rapidly heat the pan 2 to bring the water in the pan 2 to a boiling state. At this time, boiling continuously occurs and a large amount of steam is generated. When the generated steam fills the pan 2, excess steam enters the steam path 16 and enters the blower path 15. The control device 7 detects that the water in the pan 2 has boiled by the pan temperature sensor 6 and operates the fan 11. The fan 11 sucks outside air from the air inlet 12 and introduces room temperature air into the air blowing path 15. The steam guided from the steam path 16 to the blower path 15 is mixed with air at room temperature, and the mixed fluid of the air and steam is discharged to the outside from the discharge port 13 on the side surface of the lid body 3. Since the vapor concentration can be reduced by mixing with air, the temperature of the discharged mixed fluid decreases.
なお、蒸気経路１６は送風経路１５の底面に接続されているので、蒸気経路１６から排出された蒸気は空気よりも軽く自然と上方へと移動し、送風経路１５内で均一に空気と混ざりやすくなっている。 Since the steam path 16 is connected to the bottom surface of the blower path 15, the steam discharged from the steam path 16 moves lighter and naturally upward than air and easily mixes with air uniformly in the blower path 15. It has become.
低温下で且つ湿度の高い環境下で炊飯した時などは、排気口１３部に排気された蒸気が結露し水滴が付着することがある。この場合、送風経路１５の抵抗が増加し機体のバラツキにより、送風手段１１の回転数が回転異常閾値２３ｂをも上回る場合がある。この時、排気の蒸気温度が所定温度よりも下回っている場合でも異常と判断し鍋加熱装置５通電を停止してしまい炊飯が停止してしまうためご飯が生炊きになる課題が生じることがあった。 When cooking rice in a low temperature and high humidity environment, steam exhausted from the exhaust port 13 may condense and water droplets may adhere. In this case, the resistance of the air blowing path 15 increases and the air speed of the air blowing means 11 may exceed the rotation abnormality threshold 23b due to variations in the airframe. At this time, even when the steam temperature of the exhaust gas is lower than the predetermined temperature, it is determined that there is an abnormality and the cooking of the pot heating device 5 is stopped and the cooking is stopped. It was.
この課題に対し、傾斜したリブ１３ａを設けこのリブ１３ａを閉止するようにしてメッシュ１４を溶着することによって、メッシュ１４を傾斜させることでメッシュ１４に付着した結露水を、速やかに落下させることができるため、送風経路１５の抵抗上昇を抑えることで誤検知を回避できる。 In response to this problem, it is possible to quickly drop the condensed water attached to the mesh 14 by inclining the mesh 14 by providing the inclined rib 13a and welding the mesh 14 so as to close the rib 13a. Therefore, it is possible to avoid erroneous detection by suppressing an increase in the resistance of the blowing path 15.
発明者らの実験によれば、低温化でかつ湿度の高い環境下で動作させた場合、メッシュ１４の傾斜が０°の時送風手段１１の回転数増加が、２９０ｒｐｍになったが、メッシュ１４の傾斜を１７°の時にの回転数増加は１５０ｒｐｍに抑えることができた。 According to the experiments by the inventors, when operating in a low temperature and high humidity environment, when the inclination of the mesh 14 is 0 °, the rotation speed of the blower 11 is increased to 290 rpm. The increase in the number of rotations when the inclination was 17 ° could be suppressed to 150 rpm.
また、送風手段１１に回転数検知手段を設け前記回転数検知手段の出力信号が所定の回転異常閾値を越えたときに、前記加熱手段の通電を停止し、送風手段の回転数を継続して検出し、所定時間検出した後に報知することにより、吸気口または排気口に異物が詰る等の現象が発生して送風手段の回転異常閾値になった時でも、加熱手段の通電を停止することで排気の温度があがることは無い。また、加熱手段の通電を止めることで発生する蒸気量が少なくなり、通風手段を所定時間継続させて動作させることで、前記メッシュ部に水滴が付着した露が落下しやすくなり、送風手段の回転数が下がる。前記回転数が異常回転数を下回った時は、通常の炊飯工程に復帰させることで誤検知を回避できる。 In addition, the blower unit 11 is provided with a rotation number detection unit, and when the output signal of the rotation number detection unit exceeds a predetermined rotation abnormality threshold, the heating unit is deenergized and the rotation number of the blower unit is continued. By detecting and notifying after detecting for a predetermined time, even when a phenomenon such as clogging of foreign matter occurs in the intake or exhaust port and the rotation means threshold of the blower means is reached, the energization of the heating means is stopped. The exhaust temperature will not rise. In addition, the amount of steam generated by stopping energization of the heating means is reduced, and by operating the ventilation means for a predetermined period of time, dew with water droplets attached to the mesh portion is likely to fall, and the rotation of the blowing means The number goes down. When the rotational speed falls below the abnormal rotational speed, erroneous detection can be avoided by returning to the normal rice cooking process.
また、本実施の形態は、蓋本体３に、送風手段１１、送風経路１５を設置しているので蓋本体３の重量は増加するが、送風手段１１、送風経路１５をヒンジ軸Ａに近い場所に配置し、重心がヒンジ軸Ａに近づいているので、蓋本体３を開く際に必要な力を小さくすることができ、蓋本体３の回動バネ（図示せず）の力を増やす必要がなくなる。このことにより、回動バネの力が大きいと蓋本体３が炊飯器本体１に対して略９０度の角度まで開ききった場合に大きな力が働いて、鍋２が空の場合には炊飯器本体１が浮き上がってしまいがちになるという不具合も低減することができ、使い勝手の良い炊飯器を提供することができる。 Further, in the present embodiment, since the air blowing means 11 and the air flow path 15 are installed in the lid body 3, the weight of the lid main body 3 increases, but the air blowing means 11 and the air flow path 15 are close to the hinge axis A. Since the center of gravity is close to the hinge axis A, the force required to open the lid body 3 can be reduced, and the force of the rotating spring (not shown) of the lid body 3 needs to be increased. Disappear. Thus, when the force of the rotating spring is large, a large force is applied when the lid body 3 is fully opened to an angle of about 90 degrees with respect to the rice cooker body 1, and when the pan 2 is empty, the rice cooker The problem that the main body 1 tends to be lifted can be reduced, and an easy-to-use rice cooker can be provided.
また、蓋本体３の後半部分に送風手段１１、送風経路１５を収めているので、蓋本体３後半の厚みは増えるが、前半部は厚みが増えることはなく、蓋本体３の大型化を最小限に留めることができる。 Further, since the air blowing means 11 and the air flow path 15 are housed in the latter half of the lid body 3, the thickness of the latter half of the lid body 3 is increased, but the thickness of the front half is not increased, and the size of the lid body 3 is minimized. Can be limited.
以上の構成により、本実施の形態の炊飯器は、空気と蒸気の混合流体を排出する排気口１３を蓋本体３の横側面に設置し、排気口１３に排気方向規制手段１４を設けることで、横側面の排気口１３から斜め前方向に混合気流を排出することができ、棚の中に炊飯器本体を収納して炊飯しても、棚内に蒸気が滞留しにくく、棚材の劣化、制御手段７への悪影響を低減した炊飯蒸気の冷却機能を備えた炊飯器を提供することが可能となる。また、送風手段１１、送風経路１５を蓋本体３の後半部分に組み込んで、蓋本体３の大型化を抑え、さらに重心をヒンジ軸Ａに近づけているので、蓋本体３の回動バネを強くする必要が無く、蓋開操作時に炊飯器本体１が浮くなどの不具合が無く、使い勝手も良い炊飯蒸気の冷却機能を備えた炊飯器を提供できる。 With the above configuration, the rice cooker according to the present embodiment has the exhaust port 13 for discharging the mixed fluid of air and steam installed on the side surface of the lid body 3 and the exhaust port 13 is provided with the exhaust direction regulating means 14. The mixed airflow can be discharged diagonally forward from the exhaust port 13 on the side surface, and even if the rice cooker body is stored in the shelf and cooked, it is difficult for steam to stay in the shelf and the shelf material deteriorates. It becomes possible to provide a rice cooker having a rice cooking steam cooling function with reduced adverse effects on the control means 7. Further, since the air blowing means 11 and the air blowing path 15 are incorporated in the latter half portion of the lid body 3 to suppress the enlargement of the lid body 3 and the center of gravity is brought closer to the hinge axis A, the rotation spring of the lid body 3 is strengthened. Therefore, it is possible to provide a rice cooker having a rice cooking steam cooling function that is free from problems such as the rice cooker body 1 floating when the lid is opened.
なお、送風手段１１から排出される空気が排気口１３に向けてほぼ直線に流れる構成であるため、送風手段１１が有する単体の送風性能に対して、蓋本体３内に組み込んだ場合の送風性能の低下を最小限に抑えることができるので、排気方向規制手段１４により圧力損失増加し風量が低下しても、十分な蒸気冷却性能を確保することができる。 In addition, since it is the structure which the air discharged | emitted from the ventilation means 11 flows in a substantially straight line toward the exhaust port 13, the ventilation performance at the time of incorporating in the lid body 3 with respect to the single ventilation performance which the ventilation means 11 has Therefore, even when the pressure loss is increased by the exhaust direction regulating means 14 and the air volume is reduced, sufficient steam cooling performance can be ensured.
なお、本実施の形態は、吸気口１２および排気口１３を蓋本体３の横側面に設けることによって、誤って蓋本体３上方から液体などが落下した場合でも送風経路１５に落下した液体などが進入して送風手段１１に液体などが付着することを低減することができる。 In the present embodiment, by providing the air inlet 12 and the air outlet 13 on the lateral side surface of the lid main body 3, even if liquid or the like is accidentally dropped from above the lid main body 3, the liquid or the like that has dropped into the air blowing path 15 is prevented. It is possible to reduce the entry of liquid or the like to the blowing means 11 by entering.
なお、送風手段１１を蓋本体３の後部左に、排気口１３を蓋本体３の後部右側面に配置したが、逆に、送風手段１１を蓋本体３の後部右、排気口１３を蓋本体３の後部左側面に配置する構成をとってもよく、両方の仕様を用意することで、使用者が炊飯器の設置環境に合わせて利便性のある仕様を任意に選択することができる。 In addition, although the ventilation means 11 was arrange | positioned in the rear left part of the lid body 3, and the exhaust port 13 was arrange | positioned in the rear right side surface of the lid body 3, conversely, the ventilation means 11 is the rear right side of the lid body 3, and the exhaust port 13 is the lid body. 3 may be arranged on the left side of the rear part, and by preparing both specifications, the user can arbitrarily select convenient specifications according to the installation environment of the rice cooker.
なお、蒸気経路１６の少なくとも一部は着脱自在に設けられていると、おねばの通りやすい通路である、蒸気経路１６のお手入れが容易に可能となるのでよいし、蒸気経路１６の着脱はできなくとも蓋を設けて、汚れやすい部分のお手入れ行うときに蓋を開けることで可能となるような構成でもよい。 It should be noted that if at least a part of the steam path 16 is detachably provided, the steam path 16, which is an easy-to-pass passage, can be easily maintained. Even if it is not possible, a configuration may be possible in which a lid is provided and the lid can be opened when cleaning easily contaminated parts.
なお、送風手段１１は蒸気の排出時に動作して、蒸気の濃度を下げることができれば、鍋温度センサ６の検知温度に依存せず、炊き上げ工程に入って一定温度で動作を開始、または内蓋温度センサ９など他のセンサの検知温度によって動作開始でもよい。 The blowing means 11 operates at the time of discharging the steam and can reduce the concentration of the steam, and does not depend on the temperature detected by the pan temperature sensor 6 and starts the operation at a constant temperature after entering the cooking process. The operation may be started by the detected temperature of another sensor such as the lid temperature sensor 9.
なお、送風経路１５の少なくとも一部は着脱自在に設けられていると、通常よりも多い水量で炊飯された場合など異常使用時におねばや水が送風経路１５に入り込んだ場合でも、お手入れが容易となるのでよいし、送風経路１５の着脱はできなくとも蓋を設けて、汚れやすい部分のお手入れ時に蓋を開けることで可能となるような構成でもよい。 In addition, when at least a part of the air blowing path 15 is provided detachably, even when the rice or water enters the air blowing path 15 during abnormal use, such as when cooking with a larger amount of water than usual, cleaning is possible. It may be easy, or may be configured to be possible by providing a lid even if the air passage 15 cannot be attached / detached and opening the lid when cleaning easily contaminated portions.
なお、蒸気経路１６は送風経路１５の底面と接続しているが、送風経路１５の側面の底面近くでも同様の効果が見込めるし、送風経路１５のその他の部分に接続してリブを付加するなどしても蒸気と空気が略均一に混合できればよい。 The steam path 16 is connected to the bottom surface of the blower path 15, but the same effect can be expected near the bottom of the side surface of the blower path 15, and the rib is connected to other parts of the blower path 15. Even so, it suffices if steam and air can be mixed substantially uniformly.
なお、吸気口１２は送風手段１１の種類に合わせて送風手段１１の性能が十分発揮できるように圧力損失が少なくなるように設ければよく、位置や形状は異なってもよい。また、蓋本体３内部は気密空間になっていないことが多く、外気とどこかでつながっているので、送風手段１１の送風に支障がなければ、吸気口１２を特に設けることなく、従来から
存在する蓋本体３と外気との連通した隙間を吸気口１２としてもよい。
In addition, the inlet 12 should just be provided so that a pressure loss may become small so that the performance of the ventilation means 11 can fully exhibit according to the kind of the ventilation means 11, and a position and a shape may differ. Further, the inside of the lid body 3 is often not an airtight space and is connected to the outside air at some point. A gap between the lid body 3 to be communicated with the outside air may be used as the air inlet 12.
以上のように、本発明にかかる炊飯器は、蒸気の冷却機能に関するものであるので、他の蒸気を排出する調理機器の用途にも適用できる。 As mentioned above, since the rice cooker concerning this invention is related with the cooling function of steam, it can be applied also to the use of the cooking appliance which discharges other steam.
１ 炊飯器本体
１ａ 鍋収納部
２ 鍋
３ 蓋本体
１１ 送風手段
１３ 排気口
１３ａ 排気口リブ
１４ メッシュ
１５ 送風経路
１６ 蒸気経路
DESCRIPTION OF SYMBOLS 1 Rice cooker main body 1a Pan storage part 2 Pan 3 Lid main body 11 Blower means 13 Exhaust port 13a Exhaust port rib 14 Mesh 15 Blower path 16 Steam path
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| JP2010063806A JP5560804B2 (en) | 2010-03-19 | 2010-03-19 | rice cooker |
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| JP2010063806A JP5560804B2 (en) | 2010-03-19 | 2010-03-19 | rice cooker |
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| JP5560804B2 JP5560804B2 (en) | 2014-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9470513B2 (en) | 2013-05-10 | 2016-10-18 | Albert Handtmann Maschinenfabrik Gmbh & Co. Kg | Apparatus and method for determining at least one parameter of a produced sausage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580426U (en) * | 1991-04-13 | 1993-11-02 | タケフジ産業株式会社 | Tea strainer |
| JP2009112556A (en) * | 2007-11-07 | 2009-05-28 | Panasonic Corp | Cooking appliance |
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2010
- 2010-03-19 JP JP2010063806A patent/JP5560804B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580426U (en) * | 1991-04-13 | 1993-11-02 | タケフジ産業株式会社 | Tea strainer |
| JP2009112556A (en) * | 2007-11-07 | 2009-05-28 | Panasonic Corp | Cooking appliance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9470513B2 (en) | 2013-05-10 | 2016-10-18 | Albert Handtmann Maschinenfabrik Gmbh & Co. Kg | Apparatus and method for determining at least one parameter of a produced sausage |
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| JP5560804B2 (en) | 2014-07-30 |
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