JP2004047305A - Heating cooker - Google Patents

Heating cooker Download PDF

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Publication number
JP2004047305A
JP2004047305A JP2002203841A JP2002203841A JP2004047305A JP 2004047305 A JP2004047305 A JP 2004047305A JP 2002203841 A JP2002203841 A JP 2002203841A JP 2002203841 A JP2002203841 A JP 2002203841A JP 2004047305 A JP2004047305 A JP 2004047305A
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JP
Japan
Prior art keywords
heating
heating means
cooling fan
fan
rotation speed
Prior art date
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JP2002203841A
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Japanese (ja)
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JP3861760B2 (en
Inventor
Chika Kawazoe
河添 知香
Hiroshi Tominaga
富永 博
Sadatoshi Tabuchi
田縁 貞敏
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2002203841A priority Critical patent/JP3861760B2/en
Publication of JP2004047305A publication Critical patent/JP2004047305A/en
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  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To improve amenity by lowering noise by making the rotation rate of a cooling fan at the time of using a heating means heating a heater lower than at the time of using a heating means induction-heating a pot. <P>SOLUTION: The cooker is provided with a first heating means 6 induction-heating a pot, a second heating means 7 heating a radiant heater, a cooling fan 8, and a third heating means 9 heating a roaster heater inside a heating oven, and constructed so that the speed of rotation of the cooling fan 8 is changed according to the kind of heating means used. With this, the rotation speed of the cooling fan 8 can be suppressed to irreducible minimum while sufficiently cooling the equipment, and noise can be lowered. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、調理時の騒音を低くした加熱調理器に関するものである。
【0002】
【従来の技術】
従来、この種の加熱調理器としては、例えば、出願番号2001−381347号に記載されているような考えがあった。図7は前記出願において提案された従来の加熱調理器である。
【0003】
図7において、1は加熱調理器の外郭を構成する本体であり、本体1の上部には、トッププレート2と吸気部3を備えている。また、トッププレート2の上面には鍋を誘導加熱する加熱コイル4、インバータ5からなる誘導加熱手段6と、ラジェントヒータを加熱する加熱手段7とが設けられている。
【0004】
また、吸気部3の下方には冷却ファン8を備え、冷却ファン8の送風方向にはインバータ5が配されている。さらに、インバータ5などの回路ユニットの左側で、加熱コイル4の下には加熱庫内にあるロースタヒータを加熱する加熱手段9が設けられている。また加熱庫の隣り、すなわち、本体1の前面には入力手段10が設けられている。
【0005】
前記構成において、図8に示すように加熱出力に応じてファン速度が定められており、入力手段10により設定された加熱出力に応じて前記冷却ファンの回転数が変化する構成とすることにより、機器の冷却を十分維持しながら、冷却ファンの回転数を必要最小限に抑えることができ、騒音を低減できる。
【0006】
【発明が解決しようとする課題】
しかしながら、前記従来の構成では同じ出力設定であれば電子部品や本体の温度を冷却する為の冷却ファンの回転数に差がなく、電子部品や本体の温度上昇が低いヒータ使用時においても必要以上にファンが回転して騒音が生じるという課題があった。特に誘導加熱手段使用時は加熱コイルやスイッチング素子などのインバータ部品が発熱するので、誘導加熱手段使用時に必要とされる多大な冷却がヒータ使用時にも過剰に行われることにより、不要な騒音が発生していた。
【0007】
また、従来の構成では誘導加熱手段以外のヒータなどの加熱手段を使用時には冷却ファンを駆動させないものもあるが、ヒータの発熱により本体内を熱が伝導し、間接的に部品を温めるため冷却が不十分となり、安全性を低下させる可能性があった。
【0008】
本発明は、前記従来の不具合を解決するもので、使用する加熱手段に応じて冷却ファンの回転数を最小限に抑え、騒音を低減することにより快適性を向上させた加熱調理器を提供することを目的とする。
【0009】
【課題を解決するための手段】
前記従来の課題を解決するために、本発明の加熱調理器は、加熱手段と冷却ファンの回転数を一義的に定め、使用する加熱手段に応じて前記冷却ファンの回転数が変化する構成としたものである。
【0010】
これによって、機器の冷却を十分維持しながら、冷却ファンの回転数は必要最小限に抑えることができ、騒音を低減することができる。
【0011】
【発明の実施の形態】
請求項1に記載の発明は、複数の加熱手段と、本体内を冷却する冷却ファンと、ファンの回転速度を変えるファン回転数制御手段と、前記複数の加熱手段のうち、使用する加熱手段を選択して入力する入力手段と、前記入力に応じて、前記加熱手段を動作させる制御手段とを備え、前記ファン回転数制御手段は、前記複数の加熱手段の動作の選択に応じて、前記冷却ファンの回転数を変えることにより、発熱要因が異なる加熱手段毎の最適な冷却が可能となるので、機器の冷却を十分維持しながら、冷却ファンから発生する騒音が低減され、使用者の快適性を向上させることができる。
【0012】
請求項2に記載の発明は特に請求項1に記載の複数の加熱手段に誘導加熱手段とその他の加熱手段を有し、前記その他の加熱手段を使用している時は、前記誘導加熱手段を使用している時よりも、低い回転数で冷却ファンを運転することにより部品の発熱要因が少ない、誘導加熱手段以外の加熱手段使用時の過剰な冷却による不要な騒音を低減することで、使用者の快適性を向上させることができる。
【0013】
請求項3に記載の発明は特に請求項1又は2に記載の複数の加熱手段はそれぞれ冷却ファンの回転数の設定を持っており、一つ選択された時はその設定を、複数が選択された場合はその複数の設定の中から一番大きなものを選んで、冷却ファンを運転することにより、常に発熱が大きい側に応じて冷却ファンが制御されるので、どのような加熱手段の組み合わせであっても冷却不足により、過加熱され熱破壊が発生するのを防ぐことができる。
【0014】
請求項4に記載の発明は特に請求項1〜3のいずれか一項に記載の加熱調理器に加熱手段の出力を制御する出力制御部を備えることで、前記出力制御部の出力設定に応じて、冷却ファンの回転数を変更することにより、効率よく冷却を行い、不要な騒音を低減することで、使用者の快適性を向上させることができる。
【0015】
請求項5に記載の発明は特に請求項1〜4のいずれか一項に記載の加熱手段の近傍に温度を測定する温度検知手段を備えることで、前記温度に応じて冷却ファンの回転数を変更することにより、発熱状態に対応した冷却を行うことが可能となり、不要な騒音を低減することができる。
【0016】
【実施例】
以下本発明の実施例について、図面を参照しながら説明する。
【0017】
(実施例1)
図1は、本発明の第1の実施例における加熱調理器の構成図を示すものである。
【0018】
図1において、1は外郭を構成する本体であり、本体1の上部には、トッププレート2と吸気部3を備えている。また、トッププレート2の上面には鍋を誘導加熱する加熱コイル4、インバータ5からなる第1の加熱手段6と、ラジェントヒータを加熱する第2の加熱手段7とが設けられている。
【0019】
また、吸気部3の下方には冷却ファン7を備え、冷却ファン8の送風方向にはインバータ5が配されている。さらに、インバータ5などの回路ユニットの左側で、加熱コイル4の下には加熱庫内にあるロースタヒータを加熱する第3の加熱手段9が設けられている。また加熱庫のとなり、すなわち、本体1の前面には入力手段10が設けられている。
【0020】
以上のように構成された加熱調理器において、以下その動作、作用を図2に従って説明する。まず、使用者がトッププレートに鍋を載せ、入力手段10により第1の加熱手段6での加熱を選択する。制御手段11は入力手段10からの信号に基づいて第1の加熱手段6による加熱を開始する。第1の加熱手段6は誘導加熱手段で構成されており、加熱コイル4やスイッチング素子からなるインバータ5の部品が発熱し、部品の耐熱温度を超えて熱破壊に至る場合があるので、第1の加熱手段6で加熱中には制御手段11はファン回転数制御手段12に冷却ファン8を高速(本実施例では2600RPM)で駆動させる信号を送信し、ファン回転数制御手段12により冷却ファン8を高速で駆動する。冷却ファン8を駆動すると音、すなわち騒音が発生する。この騒音は冷却ファン8の回転が速くなれば速くなるほど大きくなる。
【0021】
また、入力手段10により第1の加熱手段6を停止させた後、ロースタヒータを加熱する第3の加熱手段9の加熱を選択すると、制御手段11は入力手段10からの信号に基づいてロースターヒータを加熱する第3の加熱手段9による加熱を開始する。ロースター使用時はインバータ部品による発熱はないが加熱庫内のロースターヒータの発熱により加熱庫の壁面温度が上昇し、加熱庫の横に配置された電子部品へ輻射熱が伝導することにより耐熱温度を超える場合があるため、制御手段11はファン回転数制御手段12に冷却ファン8を中速(本実施例では2300RPM)で駆動させる信号を送信し、ファン回転数制御手段12により冷却ファンを中速で駆動する。冷却ファンの駆動から発生する騒音は、第1の加熱手段6を使用時よりも小さい。
【0022】
入力手段10により、ラジェントヒータを加熱する第2の加熱手段7を停止させた後、ラジェントヒータを加熱する第2の加熱手段7の加熱を選択すると、制御手段11は入力手段10からの信号に基づいてラジェントヒータを加熱する第2の加熱手段7による加熱を開始する。第2の加熱手段使用時は第3の加熱手段使用時と同様にインバータ部品による発熱はないが、ラジェントヒータからの輻射熱により電子部品の耐熱温度を超える場合があるので、冷却ファンを駆動する必要がある。本実施例においては第2の加熱手段7と第3の加熱手段9の遮熱構成、及び各々の加熱手段と電子部品の距離から、第3の加熱手段9を使用している時よりも第2の加熱手段7を使用している時のほうが電子部品に熱が伝わらない為、制御手段11はファン回転数制御手段12に冷却ファン8を低速(本実施例では2000RPM)で駆動させる信号を送信し、ファン回転数制御手段12は冷却ファン8を低速で駆動する。冷却ファン8の駆動から発生する騒音は、第3の加熱手段9を使用時よりも回転数が低いため小さい。
【0023】
なお、第1の加熱手段6とラジェントヒータを加熱する第2の加熱手段7を同時に使用する場合は冷却ファン8を高速(本実施例では2600RPM)で、ラジェントヒータを加熱する第2の加熱手段7とロースタヒータ加熱する第3の加熱手段9を同時に使用する場合は冷却ファンを中速(本実施例では2300RPM)で駆動するといったようにそれぞれに回転数の設定を持った複数の加熱手段を同時に使用する場合は、その複数の設定の中から一番大きなものを選んで冷却ファンを駆動することにより、いかなる加熱手段の組み合わせであっても冷却不足の発生を防ぐことができる。
【0024】
また、本実施例において制御手段11に加熱手段の出力を制御する出力制御部13を備えることで、使用者が設定する「弱」、「中」、「強」といった出力設定に応じて、冷却ファンの回転数を変更することにより、更に効率良く必要最低限の冷却を行うことができる。
【0025】
以上、各々の加熱手段の出力と回転速度の関係を図3に示す。入力手段10により加熱手段の動作の選択に応じて冷却ファンの回転速度が制御されていることが明らかである。
【0026】
以上のように、本実施例においては複数の加熱手段の動作の選択に応じて、冷却ファン8の回転数を変更することにより、冷却不足による部品の熱破壊を防ぐことができ、且つ冷却ファン8から発生する騒音を低減することができる。
【0027】
なお、本実施例では誘導加熱、ラジェントヒータ、ロースタヒータの組み合わせを用いたが、その他ハロゲンヒータ、シーズヒータ等の組み合わせにおいても同様の効果を発揮することができる。
【0028】
また、本実施例では加熱手段ごとに異なる被加熱物の温め位置をもっているが、例えばオーブンレンジといった、同一の温め位置で複数の加熱手段を持つ加熱調理器においても同様の効果を発揮することができる。
【0029】
(実施例2)
図4は、本発明の第2の実施例における加熱調理器の構成図を示すものである。図4において14は各々の加熱手段の温度を検知する温度検知手段であり、実施例1と異なる点は温度検知手段14を設けた点である。
【0030】
以上のように構成された加熱調理器において、以下その動作、作用を図5、図6に従って説明する。まず、使用者がトッププレートに鍋を載せ、入力手段10により第1の加熱手段6の加熱を選択すると制御手段11は入力手段10からの信号により第1の加熱手段6による加熱を開始する。加熱開始当初は加熱コイル4やスイッチング素子からなるインバータ5の発熱度合いが低いため、第1の加熱手段6の近傍に備えられた温度検知手段14は所定温度T1よりも低いことを検知し、制御手段11に信号を送る。
【0031】
制御手段11は使用する加熱手段とその温度から定められた回転速度をファン回転数制御手段12に送信するので、冷却ファン8を中速(本実施例では2600RPM)で駆動させる。加熱時間が長くなり温度検知手段が所定温度T1よりも高いことを検知すると、制御手段11はインバータ部品の発熱を抑えるためファン回転数制御手段12に冷却ファンの速度を上げる信号を送信するので、冷却ファン8を高速(本実施例では2600RPM)で駆動させる。
【0032】
入力手段10により第1の加熱手段6を停止させた後、次にラジェントヒータを加熱する第2の加熱手段7の加熱を選択すると、制御手段11は入力手段10の信号によりラジェントヒータを加熱する加熱手段6による加熱を開始する。ラジェントヒータを加熱する第2の加熱手段6の近傍に備えられた温度検知手段14が所定温度T2よりも低いことを検知すると、制御手段11は使用する加熱手段と温度検知手段14からの信号により定められた回転速度をファン回転数制御手段12に送信するので、冷却ファン8を最低速(本実施例では1800RPM)で駆動させる。加熱時間が長くなり温度検知手段が所定温度T2よりも高いことを検知すると、制御手段11は電子部品への輻射熱の伝導を抑えるためファン回転数制御手段12に冷却ファンの速度を上げる信号を送信するので、冷却ファン8を低速(本実施例では2000RPM)で駆動させる。
【0033】
以上のように、本実施例においては使用する加熱手段とその温度に応じて、冷却ファン8の回転数を変更することにより、冷却不足による部品の熱破壊を防ぐ事ができ、且つ冷却ファン8から発生する騒音を実施例1よりも更に低減することができる。
【0034】
また、本実施例では第1の加熱手段6の温度検知手段14を加熱コイル4の近傍に設けているが、インバータ5の近傍においても同様の効果を発揮することができる。
【0035】
【発明の効果】
以上のように、請求項1〜5に記載のいずれか1項の発明により、加熱手段に応じて冷却ファンの速度を制御し、冷却不足による信頼性の低下を起こすことなく騒音を抑制した加熱調理器を提供することができる。
【図面の簡単な説明】
【図1】本発明の実施例1における電気調理器の分解斜視図
【図2】本発明の実施例1における電気調理器の動作特性図
【図3】本発明の実施例1における電気調理器の加熱手段の出力と冷却ファンの速度との関係を示した図
【図4】本発明の実施例2における電気調理器の分解斜視図
【図5】本発明の実施例2における電気調理器の動作特性図
【図6】本発明の実施例2における電気調理器の動作特性図
【図7】従来の電気調理器の分解斜視図
【図8】従来の電気調理器の加熱入力と冷却ファン速度との関係を示した図
【符号の説明】
6 第1の加熱手段
7 第2の加熱手段
8 冷却ファン
9 第3の加熱手段
10 入力手段
11 制御手段
12 ファン回転数制御手段
13 出力制御部
14 温度検知手段
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cooking device that reduces noise during cooking.
[0002]
[Prior art]
Conventionally, as this type of heating cooker, for example, there has been an idea described in Japanese Patent Application No. 2001-381347. FIG. 7 shows a conventional heating cooker proposed in the above-mentioned application.
[0003]
In FIG. 7, reference numeral 1 denotes a main body constituting an outer shell of the cooking device. Further, on the upper surface of the top plate 2, a heating coil 4 for inductively heating the pan, an induction heating means 6 including an inverter 5, and a heating means 7 for heating the radiant heater are provided.
[0004]
Further, a cooling fan 8 is provided below the intake section 3, and an inverter 5 is arranged in a direction in which the cooling fan 8 blows air. Further, on the left side of the circuit unit such as the inverter 5 and below the heating coil 4, a heating means 9 for heating the roaster heater in the heating chamber is provided. An input means 10 is provided next to the heating cabinet, that is, on the front surface of the main body 1.
[0005]
In the above configuration, as shown in FIG. 8, the fan speed is determined according to the heating output, and the rotation speed of the cooling fan is changed according to the heating output set by the input unit 10. The number of rotations of the cooling fan can be kept to a necessary minimum while sufficiently cooling the device, and noise can be reduced.
[0006]
[Problems to be solved by the invention]
However, in the conventional configuration, there is no difference in the number of rotations of the cooling fan for cooling the temperature of the electronic components and the main body if the same output setting is used. However, there is a problem that noise is generated by the rotation of the fan. In particular, when the induction heating means is used, the inverter components such as the heating coil and the switching element generate heat, so that the excessive cooling required when using the induction heating means is performed excessively even when using the heater, thereby generating unnecessary noise. Was.
[0007]
Also, in the conventional configuration, there is a case in which the cooling fan is not driven when using a heating means such as a heater other than the induction heating means, but heat is conducted in the main body due to the heat generated by the heater, and cooling is performed because the parts are indirectly warmed. Insufficiently, there was a possibility that safety was reduced.
[0008]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a heating cooker in which the number of rotations of a cooling fan is minimized in accordance with a heating unit to be used, noise is reduced, and comfort is improved. The purpose is to:
[0009]
[Means for Solving the Problems]
In order to solve the conventional problem, the heating cooker of the present invention has a configuration in which the number of rotations of the heating means and the cooling fan is uniquely determined, and the number of rotations of the cooling fan changes according to the heating means used. It was done.
[0010]
As a result, the number of rotations of the cooling fan can be suppressed to a necessary minimum while sufficiently cooling the device, and noise can be reduced.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 includes a plurality of heating units, a cooling fan that cools the inside of the main body, a fan rotation speed control unit that changes a rotation speed of the fan, and a heating unit that is used among the plurality of heating units. Input means for selecting and inputting, and control means for operating the heating means in response to the input, wherein the fan speed control means controls the cooling in response to selection of an operation of the plurality of heating means. By changing the number of rotations of the fan, it is possible to perform optimal cooling for each heating means with different heat generation factors, so that the noise generated from the cooling fan is reduced while maintaining sufficient cooling of the equipment, and user comfort is reduced. Can be improved.
[0012]
The invention described in claim 2 particularly has an induction heating means and other heating means in the plurality of heating means according to claim 1, and when the other heating means is used, the induction heating means is provided. By operating the cooling fan at a lower rotation speed than when using it, there is less heat generation of parts, and unnecessary noise due to excessive cooling when using heating means other than induction heating means is used. The comfort of the person can be improved.
[0013]
According to a third aspect of the present invention, in particular, the plurality of heating means according to the first or second aspect each have a setting of the number of revolutions of the cooling fan. In this case, the largest one is selected from the plurality of settings, and the cooling fan is operated, so that the cooling fan is always controlled according to the side generating more heat. Even if there is insufficient cooling, overheating due to insufficient cooling can be prevented from occurring.
[0014]
According to a fourth aspect of the present invention, the heating cooker according to any one of the first to third aspects further includes an output control unit that controls an output of the heating unit, so that the output setting of the output control unit is performed. By changing the number of rotations of the cooling fan, cooling can be performed efficiently, and unnecessary noise can be reduced, thereby improving user comfort.
[0015]
The invention according to claim 5 is provided with a temperature detecting means for measuring a temperature in the vicinity of the heating means according to any one of claims 1 to 4, so that the number of rotations of the cooling fan is adjusted according to the temperature. By making the change, cooling corresponding to the heat generation state can be performed, and unnecessary noise can be reduced.
[0016]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
(Example 1)
FIG. 1 shows a configuration diagram of a heating cooker according to a first embodiment of the present invention.
[0018]
In FIG. 1, reference numeral 1 denotes a main body constituting an outer shell, and a top plate 2 and a suction unit 3 are provided on an upper portion of the main body 1. On the upper surface of the top plate 2, a heating coil 4 for inductively heating the pan, a first heating means 6 including an inverter 5, and a second heating means 7 for heating a radiant heater are provided.
[0019]
Further, a cooling fan 7 is provided below the intake unit 3, and an inverter 5 is arranged in a direction in which the cooling fan 8 blows air. Further, on the left side of the circuit unit such as the inverter 5 and below the heating coil 4, a third heating means 9 for heating the roaster heater in the heating chamber is provided. An input means 10 is provided next to the heating cabinet, that is, on the front surface of the main body 1.
[0020]
The operation and operation of the heating cooker configured as described above will be described below with reference to FIG. First, the user places the pot on the top plate, and selects heating by the first heating means 6 by the input means 10. The control means 11 starts heating by the first heating means 6 based on a signal from the input means 10. The first heating means 6 is constituted by an induction heating means, and the parts of the inverter 5 composed of the heating coil 4 and the switching element generate heat, which may exceed the heat resistant temperature of the parts and lead to thermal destruction. During heating by the heating means 6, the control means 11 transmits a signal for driving the cooling fan 8 at a high speed (2600 RPM in this embodiment) to the fan rotation speed control means 12, and the cooling fan 8 is controlled by the fan rotation speed control means 12. Drive at high speed. When the cooling fan 8 is driven, sound, that is, noise is generated. This noise increases as the rotation of the cooling fan 8 increases.
[0021]
When the first heating means 6 is stopped by the input means 10 and the heating of the third heating means 9 for heating the roaster heater is selected, the control means 11 controls the roaster heater based on a signal from the input means 10. The heating by the third heating means 9 for heating is started. When the roaster is used, there is no heat generated by the inverter components, but the heat generated by the roaster heater in the heating chamber raises the wall temperature of the heating chamber, and the radiant heat is transmitted to the electronic components arranged beside the heating chamber, exceeding the heat resistance temperature. In some cases, the control unit 11 transmits a signal for driving the cooling fan 8 at a medium speed (2300 RPM in this embodiment) to the fan rotation speed control unit 12, and the fan rotation speed control unit 12 controls the cooling fan at the medium speed. Drive. The noise generated by driving the cooling fan is smaller than when the first heating means 6 is used.
[0022]
After the second heating means 7 for heating the radiant heater is stopped by the input means 10 and the heating of the second heating means 7 for heating the radiant heater is selected, the control means 11 The heating by the second heating means 7 for heating the radiant heater based on the signal is started. When the second heating means is used, no heat is generated by the inverter parts as in the case of using the third heating means. However, since the radiation heat from the radiant heater may exceed the heat resistant temperature of the electronic parts, the cooling fan is driven. There is a need. In this embodiment, due to the heat shielding structure of the second heating means 7 and the third heating means 9 and the distance between each heating means and the electronic component, the third heating means 9 is more difficult than when the third heating means 9 is used. Since the heat is not transmitted to the electronic components when the second heating means 7 is used, the control means 11 sends a signal for driving the cooling fan 8 to the fan speed control means 12 at a low speed (2000 RPM in the present embodiment). Then, the fan speed control means 12 drives the cooling fan 8 at a low speed. The noise generated from the driving of the cooling fan 8 is small because the rotation speed is lower than when the third heating means 9 is used.
[0023]
When the first heating means 6 and the second heating means 7 for heating the radiant heater are used at the same time, the cooling fan 8 is operated at a high speed (2600 RPM in this embodiment) to heat the radiant heater. When the heating means 7 and the third heating means 9 for heating the roaster heater are used at the same time, a plurality of heating means each having a setting of the number of revolutions such as driving the cooling fan at a medium speed (2300 RPM in this embodiment). When the means are used at the same time, by selecting the largest one among the plurality of settings and driving the cooling fan, it is possible to prevent insufficient cooling of any combination of heating means.
[0024]
Further, in the present embodiment, by providing the control unit 11 with the output control unit 13 for controlling the output of the heating unit, cooling can be performed according to the output setting such as “weak”, “medium”, and “strong” set by the user. By changing the number of revolutions of the fan, the minimum necessary cooling can be performed more efficiently.
[0025]
FIG. 3 shows the relationship between the output of each heating means and the rotation speed. It is clear that the rotation speed of the cooling fan is controlled by the input means 10 according to the selection of the operation of the heating means.
[0026]
As described above, in the present embodiment, by changing the rotation speed of the cooling fan 8 according to the selection of the operation of the plurality of heating means, it is possible to prevent thermal destruction of components due to insufficient cooling, and to prevent the cooling fan 8 can be reduced.
[0027]
In this embodiment, a combination of induction heating, a radiant heater, and a roaster heater is used. However, a similar effect can be obtained with a combination of a halogen heater, a sheath heater, and the like.
[0028]
Further, in the present embodiment, different heating positions of the object to be heated are provided for each heating means, but the same effect can be exerted in a heating cooker having a plurality of heating means at the same heating position, for example, a microwave oven. it can.
[0029]
(Example 2)
FIG. 4 shows a configuration diagram of a heating cooker according to a second embodiment of the present invention. In FIG. 4, reference numeral 14 denotes a temperature detecting means for detecting the temperature of each heating means, which is different from the first embodiment in that the temperature detecting means 14 is provided.
[0030]
The operation and operation of the heating cooker configured as described above will be described below with reference to FIGS. First, when the user places the pot on the top plate and selects heating of the first heating means 6 by the input means 10, the control means 11 starts heating by the first heating means 6 according to a signal from the input means 10. At the beginning of the heating, since the heating degree of the heating coil 4 and the inverter 5 including the switching element is low, the temperature detecting means 14 provided in the vicinity of the first heating means 6 detects that the temperature is lower than the predetermined temperature T1, and performs control. A signal is sent to the means 11.
[0031]
The control means 11 transmits the rotation speed determined from the heating means to be used and the temperature thereof to the fan rotation speed control means 12, so that the cooling fan 8 is driven at a medium speed (2600 RPM in this embodiment). When the heating time is prolonged and the temperature detecting means detects that the temperature is higher than the predetermined temperature T1, the control means 11 transmits a signal for increasing the speed of the cooling fan to the fan rotation speed controlling means 12 in order to suppress heat generation of the inverter components. The cooling fan 8 is driven at a high speed (2600 RPM in this embodiment).
[0032]
After the first heating means 6 is stopped by the input means 10 and then the heating of the second heating means 7 for heating the radiant heater is selected, the control means 11 switches the radiant heater by the signal of the input means 10. The heating by the heating means 6 for heating is started. When the temperature detecting means 14 provided in the vicinity of the second heating means 6 for heating the gradient heater detects that the temperature is lower than the predetermined temperature T2, the control means 11 sends a signal from the heating means to be used and a signal from the temperature detecting means 14. Is transmitted to the fan rotation speed control means 12, the cooling fan 8 is driven at the lowest speed (1800 RPM in this embodiment). When the heating time is prolonged and the temperature detecting means detects that the temperature is higher than the predetermined temperature T2, the control means 11 transmits a signal for increasing the speed of the cooling fan to the fan rotation speed controlling means 12 to suppress conduction of radiant heat to the electronic components. Therefore, the cooling fan 8 is driven at a low speed (2000 RPM in this embodiment).
[0033]
As described above, in the present embodiment, by changing the rotation speed of the cooling fan 8 according to the heating means used and its temperature, it is possible to prevent thermal destruction of parts due to insufficient cooling, Can be further reduced than in the first embodiment.
[0034]
Further, in this embodiment, the temperature detecting means 14 of the first heating means 6 is provided near the heating coil 4, but the same effect can be exerted also near the inverter 5.
[0035]
【The invention's effect】
As described above, according to the invention of any one of claims 1 to 5, the speed of the cooling fan is controlled according to the heating means, and the noise is suppressed without lowering the reliability due to insufficient cooling. A cooker can be provided.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an electric cooker according to a first embodiment of the present invention. FIG. 2 is an operation characteristic diagram of the electric cooker according to the first embodiment of the present invention. FIG. 3 is an electric cooker according to the first embodiment of the present invention. FIG. 4 shows the relationship between the output of the heating means and the speed of the cooling fan. FIG. 4 is an exploded perspective view of the electric cooker according to the second embodiment of the present invention. FIG. FIG. 6 is an operating characteristic diagram of the electric cooker according to the second embodiment of the present invention. FIG. 7 is an exploded perspective view of the conventional electric cooker. FIG. 8 is a heating input and a cooling fan speed of the conventional electric cooker. Diagram showing the relationship with
6 First heating means 7 Second heating means 8 Cooling fan 9 Third heating means 10 Input means 11 Control means 12 Fan speed control means 13 Output control unit 14 Temperature detection means

Claims (5)

複数の加熱手段と、本体内を冷却する冷却ファンと、ファンの回転速度を変えるファン回転数制御手段と、前記複数の加熱手段のうち使用する加熱手段を選択して入力する入力手段と、前記入力に応じて前記加熱手段を動作させる制御手段とを備え、前記ファン回転数制御手段は、前記複数の加熱手段の動作の選択に応じて前記冷却ファンの回転数を変える加熱調理器。A plurality of heating means, a cooling fan for cooling the inside of the main body, a fan rotation speed control means for changing a rotation speed of the fan, an input means for selecting and inputting a heating means to be used among the plurality of heating means, Control means for operating the heating means in response to an input, wherein the fan rotation speed control means changes the rotation speed of the cooling fan in accordance with selection of an operation of the plurality of heating means. 複数の加熱手段は誘導加熱手段とその他の加熱手段を有し、前記その他の加熱手段を使用している時は、前記誘導加熱手段を使用している時よりも、低い回転数で冷却ファンを運転する請求項1に記載の加熱調理器。The plurality of heating means has an induction heating means and other heating means, and when using the other heating means, the cooling fan is operated at a lower rotation speed than when using the induction heating means. The cooking device according to claim 1, which is operated. 複数の加熱手段はそれぞれに冷却ファンの回転数の設定を有し、前記設定のうちから一つを選択した時はその設定を、複数が選択された時はその複数の設定の中から一番大きな回転数を選んで前記冷却ファンを運転する請求項1又は2に記載の加熱調理器。Each of the plurality of heating means has a setting of the number of revolutions of the cooling fan, and when one of the settings is selected, the setting is selected, and when a plurality is selected, the most setting is selected from among the plurality of settings. The heating cooker according to claim 1, wherein the cooling fan is operated by selecting a high rotation speed. 加熱手段の出力を制御する出力制御部を備え、前記出力制御部の出力設定に応じて、冷却ファンの回転数を変更する請求項1〜3のいずれか一項に記載の加熱調理器。The heating cooker according to any one of claims 1 to 3, further comprising an output control unit configured to control an output of the heating unit, wherein the number of revolutions of the cooling fan is changed according to an output setting of the output control unit. 加熱手段の近傍に温度を測定する温度検知手段を備え、前記温度に応じて冷却ファンの回転数を変更する請求項1〜4のいずれか一項に記載の加熱調理器。The heating cooker according to any one of claims 1 to 4, further comprising a temperature detecting unit that measures a temperature near the heating unit, and changing a rotation speed of the cooling fan according to the temperature.
JP2002203841A 2002-07-12 2002-07-12 Cooker Expired - Fee Related JP3861760B2 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007250227A (en) * 2006-03-14 2007-09-27 Mitsubishi Electric Corp Induction heating cooking device
JP2007287372A (en) * 2006-04-13 2007-11-01 Matsushita Electric Ind Co Ltd Induction heating cooking device
JP2008117728A (en) * 2006-11-08 2008-05-22 Matsushita Electric Ind Co Ltd Induction-heating cooker
EP2287533A1 (en) 2009-08-04 2011-02-23 Indesit Company, S.p.A. Method for controlling the operation of an oven
WO2016070220A1 (en) * 2014-11-07 2016-05-12 Breville Pty Limited Cooktop
JP2018195527A (en) * 2017-05-22 2018-12-06 三菱電機株式会社 Heating cooker
CN114271667A (en) * 2020-09-27 2022-04-05 珠海优特智厨科技有限公司 Control method and device of cooking appliance, storage medium and computer equipment

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007250227A (en) * 2006-03-14 2007-09-27 Mitsubishi Electric Corp Induction heating cooking device
JP4545105B2 (en) * 2006-03-14 2010-09-15 三菱電機株式会社 Induction heating cooker
JP2007287372A (en) * 2006-04-13 2007-11-01 Matsushita Electric Ind Co Ltd Induction heating cooking device
JP2008117728A (en) * 2006-11-08 2008-05-22 Matsushita Electric Ind Co Ltd Induction-heating cooker
EP2287533A1 (en) 2009-08-04 2011-02-23 Indesit Company, S.p.A. Method for controlling the operation of an oven
WO2016070220A1 (en) * 2014-11-07 2016-05-12 Breville Pty Limited Cooktop
US10278238B2 (en) 2014-11-07 2019-04-30 Breville Pty Limited Cooktop
US11743976B2 (en) 2014-11-07 2023-08-29 Breville Pty Limited Cooktop
JP2018195527A (en) * 2017-05-22 2018-12-06 三菱電機株式会社 Heating cooker
JP7105542B2 (en) 2017-05-22 2022-07-25 三菱電機株式会社 heating cooker
CN114271667A (en) * 2020-09-27 2022-04-05 珠海优特智厨科技有限公司 Control method and device of cooking appliance, storage medium and computer equipment
CN114271667B (en) * 2020-09-27 2023-02-07 珠海优特智厨科技有限公司 Control method and device of cooking appliance, storage medium and computer equipment

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