JP3914761B2 - Cooker - Google Patents

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Publication number
JP3914761B2
JP3914761B2 JP2001388892A JP2001388892A JP3914761B2 JP 3914761 B2 JP3914761 B2 JP 3914761B2 JP 2001388892 A JP2001388892 A JP 2001388892A JP 2001388892 A JP2001388892 A JP 2001388892A JP 3914761 B2 JP3914761 B2 JP 3914761B2
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Japan
Prior art keywords
cooking chamber
air
exhaust
cooking
fan
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Expired - Fee Related
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JP2001388892A
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Japanese (ja)
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JP2003185157A (en
JP2003185157A5 (en
Inventor
哲也 庄子
裕吉 矢沢
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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Priority to JP2001388892A priority Critical patent/JP3914761B2/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/10Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12Cooking devices
    • H05B6/1209Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1263Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements

Description

【0001】
【発明の属する技術分野】
本発明は、ロースターを有する加熱調理器に関するものである。
【0002】
【従来の技術】
従来のロースターを有する加熱調理器は、本体内に魚等を焼くロースター部と、さらに加熱コイルによって発生する磁束により、トッププレートの上に置いた鉄製の鍋等の被加熱物に渦電流を発生させ、被加熱物を加熱する誘導加熱手段や、ラジエントヒータの輻射線により、トッププレートの上に置いた被加熱物を加熱するヒータ加熱手段などを組み合わせたものが主流である。電気をエネルギー源とするこの種の調理器は、ガスなどの燃焼系の調理器に比べて被加熱物以外への放熱が少なく、熱効率が良好で、安全性も高いので普及が進みつつある。
【0003】
この従来例を、図1、図5を用いて説明する。図1は従来および本発明の加熱調理器の組込後の外観斜視図で調理台に組み込んだ状態を示し、図5は従来例の加熱調理器の内部平面図である。
【0004】
図において、本体1の上面に被加熱物(図示せず)を載置するトッププレート2を備え、このトッププレート2部に二つの誘導加熱部3と一つのヒータ加熱部5を備えている。トッププレート2の下方に二つの加熱コイル4及び制御基板10と、これらを冷却する冷却ファン12と、加熱ヒータ6と、調理庫8を有するロースター部7を備え、調理庫8内にはロースター用ヒータ9を備えている。
【0005】
本体1後部右側に上方に向けて開口された吸気口11を備え、本体1内の吸気口11近傍に冷却ファン12を備え、本体1後部左側に上方に向けて開口された二箇所の排気口13を備えている。
【0006】
そして、本体1内部で調理庫8の後方に調理庫8後部の調理庫排気口15から排気口14に至る風路を形成する排気ダクト17を備え、調理庫排気口15部に触媒18と触媒ヒータ19を備え、排気ダクト17内に排気ファン16を備えている。
【0007】
以上の構成において、動作を説明する。尚、図5において、矢印は空気の流れを示している。
【0008】
使用者が被加熱物(図示せず)をロースター部7の調理庫8内に入れ、火力等を設定して調理を開始すると、制御基板10は制御信号をロースター用ヒータ9に送り、この信号によりロースター用ヒータ9が通電され、被加熱物(図示せず)を加熱する。
【0009】
同時に、トッププレート2上の誘導加熱部3の一つに他の被加熱物(図示せず)を載置して、火力等を設定して調理を開始する。すると、制御基板10は制御信号を出力して前記誘導加熱部3の下方の加熱コイル4を駆動し、上方に載置された被加熱物(図示せず)を加熱する。
【0010】
調理が開始されると、制御基板10は上記に加え、排気ファン16、冷却ファン12、触媒ヒータ19にも制御信号を出力する。この制御信号により、排気ファン16は駆動され、調理庫排気口15から空気を吸い込み、後方の排気ダクト17へ送風を行う。このとき、調理庫8内の被加熱物(図示せず)から発生する油煙を含んだ空気は、触媒ヒータ19で加熱されて活性化した触媒18の作用により浄化された後、排気ダクト17に送風され、第二の排気口14を通り本体1外へ排出される。
【0011】
さらに、同じく制御基板10の制御信号により駆動された冷却ファン12は吸気口11から外気を吸込み、前方の制御基板10へ送風を行う。この冷却風は制御基板10を冷却した後、本体1内部を流れて二つの加熱コイル4等を冷却し、第一の排気口13を通り本体1外へ排出される。
【0012】
調理中は上記のように冷却および排気動作が行われ、調理が終了すると、制御基板10は制御信号の出力を停止し、ロースター用ヒータ9、排気ファン16、冷却ファン12、触媒ヒータ19および加熱コイル4等の運転を停止させる。
【0013】
ところで、加熱コイル4や制御基板10に搭載された電子部品等は冷却ファン12により冷却されるが、上記のように、ロースター加熱と誘導加熱の同時加熱などの時に、調理庫8から発生する熱により近傍の加熱コイル4や制御基板10に搭載された電子部品等がかなり温度上昇するので、これらを冷却するために本体1内部に複雑な風路を形成したり、温度定格の高い高価な電子部品等を使用する等の必要があった。
【0014】
上記の類似例として特開2001−208359号公報、特許第3152165号公報などがある。
【0015】
【発明が解決しようとする課題】
前述したように、従来の加熱調理器においては、ロースター加熱と誘導加熱の同時加熱などの時に、調理庫8から発生する熱により近傍の加熱コイル4や制御基板10に搭載された電子部品等の温度上昇が大きくなり、これらを冷却するために本体1内部に複雑な風路を形成する等の必要があった。
【0016】
本発明は、前記課題を解決するものであり、調理庫近傍の加熱コイルや制御基板に搭載された電子部品等の冷却効率を向上し、同時に調理庫内で発生する油煙を含んだ空気の浄化能力を低下させないものを、コストアップしない簡単な構成で実現するものである。
【0017】
【課題を解決するための手段】
本発明は、上述の課題を解決するために、本体内に加熱コイルと、加熱コイルを制御する制御基板と、加熱コイルと制御基板を冷却する冷却ファンと、調理庫を有するロースター部と、前記調理庫内の空気を排出する調理庫排気口と、調理庫排気口部に備えられた触媒及び触媒ヒータと、前記調理庫排気口の後方に備えられ前記調理庫内部の空気を吸込む排気ファンと、排気ファンが吸込んだ空気を排出するための排気ダクトとを備え、本体後部に前記冷却ファンにより外気を吸い込む吸気口と、前記冷却ファンにより吸込んだ外気を排出する第一の排気口と、前記排気ダクトから送られてくる空気を本体外部に排出する第二の排気口を備えた加熱調理器において、前記調理庫排気口と前記排気ファンの間に隙間を設け、前記冷却ファンで前記加熱コイルと前記制御基板を冷却した後の冷却風の一部を前記排気ファンで前記隙間より排気ダクト内に吸い込み、前記調理庫排気口より排出する空気と一緒に前記第二の排気口より本体外部に排出するとともに、排気ファンに吸込まれる調理内部の空気量排気ファンに吸込まれる調理庫周囲の空気量より大したものである。
【0018】
【発明の実施の形態】
本発明は、本体内に加熱コイルと、調理庫を有するロースター部と、この調理庫に連通する排気ダクトを備え、本体後部に加熱コイルに連通する排気口と、排気ダクトに連通する排気口を備え、前記調理庫の後部に調理庫排気口を配し、この調理庫排気口部に触媒と触媒ヒータを備え、調理庫排気口の後方に排気ファンを備えた加熱調理器において、前記排気ファンは調理庫内部及び周囲の空気を吸込むように構成したものである。
【0019】
【実施例】
以下、本発明の一実施例を図面に従って説明する。
【0020】
図1は従来および本発明の加熱調理器の組込後の外観斜視図で調理台に組み込んだ状態を示している。図2は本発明の加熱調理器の内部平面図で、図3は本発明の加熱調理器の側面断面図である。図4(a)は本発明の加熱調理器の排気ファンと調理庫排気口の関係の一例を示す図、同(b)は同じく排気ファンと調理庫排気口の関係の他の一例を示す図である。
【0021】
図において、1は加熱調理器の本体である。2は鉄製の鍋等の被加熱物(図示せず)を載置するトッププレートで、本体1の上面に水平に設けられている。
【0022】
3は誘導加熱部で、左右に二つ有り、トッププレート2上に載置される被加熱物(図示せず)を誘導加熱する部位である。これらの真下に対応して本体1内に誘導加熱時に高周波電流が流れて被加熱物(図示せず)を加熱する磁束を発生する加熱コイル4を備えている。
【0023】
5はヒータ加熱部で中央後部に有り、トッププレート2上に載置される加熱物(図示せず)をヒータ加熱する部位である。この真下に対応して本体1内にヒータ加熱時に輻射線を発生して被加熱物(図示せず)を加熱する加熱ヒータ6を備えている。
【0024】
7は本体1内に備えられた調理庫8を有するロースター部である。9はロースター用ヒータで、調理庫8内の上部に配され、通電されて輻射線を発生し調理庫8内に入れられた魚等を焼くものである。ロースター部7の前面は開口されており、この開口部前方に扉部を設け、扉部の開閉によって調理庫8内に被加熱物を出し入れする。
【0025】
10は制御基板で、トッププレート2の下方に設けられ、複数の加熱コイル4やロースター用ヒータ9等を主に制御する電子部品等を搭載した回路基板である。
【0026】
11は吸気口で、本体1後部に上方へ向けて開口された開口部である。12は冷却ファンで、本体1内の吸気口11近傍にあり、複数の加熱コイル4、及び制御基板10に搭載された電子部品等を冷却するものである。
【0027】
13は加熱コイル4に連通し、冷却ファン12による冷却風を本体1外に排出する第一の排気口で、本体1後部に上方へ向けて開口された開口部である。
【0028】
14は後記排気ダクト17に連通し、主に調理庫8内の空気を本体1外に排出する第二の排気口で、本体1後部に上方へ向けて開口された開口部である。本実施例では、第一の排気口13は第二の排気口14を挟んで二箇所に分離されて配されている。
【0029】
15は調理庫排気口で、調理庫8の後部に配され、調理庫8内部の空気が排出される開口部である。
【0030】
16は排気ファンで、調理庫排気口15の後方に備えられ、調理庫8内部及び周囲の空気を吸込むとともに、排気ファン16に吸込まれる調理庫8内部の空気量は排気ファン16に吸込まれる調理庫8周囲の空気量より大であるように構成する。
【0031】
具体的には図4(a)に示すように、排気ファン16の吸込み部の開口面積S2を調理庫排気口15の開口面積S1より大きく形成し、この二つの開口面積S1、S2の大小関係等を調整して、排気ファン16に吸込まれる調理庫8内部の空気量は排気ファン16に吸込まれる調理庫8周囲の空気量より大であるようにする。
【0032】
若しくは、同図(b)に示すように、排気ファン16を調理庫排気口15と隙間gを設けて配置する等の構成とし、この間隙gを調整して、排気ファン16に吸込まれる調理庫8内部の空気量は排気ファン16に吸込まれる調理庫8周囲の空気量より大であるようにする。
【0033】
尚、図4において、実線の矢印は調理庫8内部の空気の流れを示し、破線の矢印は調理庫8周囲の空気の流れを示している。
【0034】
17は排気ダクトで、本体1内に備えられ、第二の排気口14と排気ファン16と調理庫8とに連通して、調理庫8から調理庫排気口15、排気ファン16を経由し、第二の排気口14に至る排気風路を形成する。
【0035】
18は触媒で、調理庫排気口15部に備えられ、加熱されて活性化し調理庫8内の被加熱物(図示せず)から発生する油煙を含んだ空気を浄化する。
【0036】
19は触媒ヒータで、調理庫排気口15部に備えられ、通電されて発熱し、触媒18を加熱する。
【0037】
以上の構成において、その動作を説明する。尚、図2、図3、図4において、矢印は空気の流れを示している。
【0038】
使用者が被加熱物(図示せず)をロースター部7の調理庫8内に入れ、火力等を設定して調理を開始すると、制御基板10は制御信号をロースター用ヒータ9に送り、この信号によりロースター用ヒータ9が通電され、被加熱物(図示せず)を加熱する。
【0039】
同時に、トッププレート2上の誘導加熱部3の一つに他の被加熱物(図示せず)を載置して、火力等を設定して調理を開始する。すると、制御基板10は制御信号を出力して前記誘導加熱部3の下方の加熱コイル4を駆動し、上方に載置された被加熱物(図示せず)を加熱する。
【0040】
調理が開始されると、制御基板10は上記に加え、排気ファン16、冷却ファン12、触媒ヒータ19にも制御信号を出力する。この制御信号により、排気ファン16は駆動され、調理庫排気口15から調理庫8内部の空気を吸い込み、後方の排気ダクト17へ送風を行う。このとき、調理庫8内の被加熱物(図示せず)から発生する油煙を含んだ空気は、触媒ヒータ19で加熱されて活性化した触媒18の作用により浄化された後、排気ダクト17に送風され、第二の排気口14を通り本体1外へ排出される。
【0041】
さらに、同じく制御基板10の制御信号により駆動された冷却ファン12は吸気口11から外気を吸込み、前方の制御基板10へ送風を行う。この冷却風は制御基板10を冷却した後、本体1内部を流れて二つの加熱コイル4等を冷却し、第一の排気口13を通り本体1外へ排出される。
【0042】
ところで、排気ファン16は、吸込み部の開口面積S2が調理庫排気口15の開口面積S1より大きく形成されるか、若しくは調理庫排気口15と隙間gを設けて配されているので、調理庫8内部及び周囲の空気を吸込む。つまり、排気ファン16によって調理庫8内部の空気だけでなく、冷却ファン12による冷却風の一部を排気ダクト17内に吸込み、第二の排気口14をから本体1外へ排出する。このとき、排気ファン16に吸込まれる調理庫8内部の空気量は排気ファン16に吸込まれる調理庫8周囲の空気量より大であるように構成されている。
【0043】
これによって、調理庫内で発生する油煙を含んだ空気の浄化能力を低下させることなく、同時に冷却ファン12による冷却能力が高められ、加熱コイル4や制御基板10に搭載された電子部品等がより冷却されるので、従来、ロースター加熱と誘導加熱の同時加熱などの時に、調理庫8から発生する熱により近傍の加熱コイル4や制御基板10に搭載された電子部品等の温度上昇が大きくなり、これらを冷却するために本体1内部に複雑な風路を形成する等の必要があったが、コストアップしない簡単な風路構造で済むという効果が得られる。
【0044】
調理中は上記のように冷却および排気動作が行われ、調理が終了すると、制御基板10は制御信号の出力を停止し、ロースター用ヒータ9、排気ファン16、冷却ファン12、触媒ヒータ19および加熱コイル4等の運転を停止させる。
【0045】
【発明の効果】
以上述べたように、本発明の加熱調理器によれば、本体内に加熱コイルと、調理庫を有するロースター部と、この調理庫に連通する排気ダクトを備え、本体後部に加熱コイルに連通する排気口と、排気ダクトに連通する排気口を備え、前記調理庫の後部に調理庫排気口を配し、この調理庫排気口部に触媒と触媒ヒータを備え、調理庫排気口の後方に排気ファンを備えた加熱調理器において、前記排気ファンは調理庫内部及び周囲の空気を吸込むとともに、排気ファンに吸込まれる調理庫内部の空気量は排気ファンに吸込まれる調理庫周囲の空気量より大であるように構成したので、調理庫近傍の加熱コイルや制御基板に搭載された電子部品等の冷却効率を向上し、同時に調理庫内で発生する油煙を含んだ空気の浄化能力を低下させないものを、コストアップしない簡単な構成で実現できる。
【0046】
つまり、従来、ロースター加熱と誘導加熱の同時加熱などの時に、調理庫から発生する熱により近傍の加熱コイルや制御基板に搭載された電子部品等の温度上昇が大きくなり、これらを冷却するために本体内部に複雑な風路を形成する等の必要があったが、排気ファンをロースター部の調理庫の排気と同時に加熱コイル等の冷却能力向上を兼ね備える前記のような簡単な構成とすることにより、調理庫内で発生する油煙を含んだ空気の浄化能力を低下させることなく、同時に加熱コイル等の冷却風路を簡単な構造にできるものである。
【0047】
具体的構成例として、排気ファンの吸込み部の開口面積が調理庫排気口の開口面積よりやや大きく形成すれば、調理庫排気口と排気ファンとを密着した構造にできるので、周辺の前後方向の寸法に余裕を持たせることができる。
【0048】
他の具体的構成例として、排気ファンを調理庫排気口と隙間を設けて配置すれば、排気ファンの吸込み部の開口面積は調理庫排気口の開口面積に依存する必要がなくなるので、排気ファンの大きさを自由に選択することができる。
【0049】
尚、以上の構成では、調理庫から本体外部に至る風路の途中の調理庫排気口と排気ダクトの間に隙間が設けられているので、調理庫内の被加熱物から発生する油煙を含んだ空気が本体内部に漏れ出る心配があるが、風路内に備えられた排気ファンの作用により、風路内の気圧が風路外すなわち本体内部の気圧より低くなるため、調理庫内の被加熱物から発生する油煙を含んだ空気が本体内部に漏れ出ることはない。
【0050】
また、本体内部の冷却風路を簡単な構造にできるので、開発が容易となり、製品開発工程の短縮ができるものである。また、制御基板に搭載された電子部品等の温度上昇を低減できることにより、温度定格の低い廉価な電子部品等を使用でき、製品のコストダウンを計ることができる。
【図面の簡単な説明】
【図1】従来および本発明の加熱調理器の組込後の外観斜視図である。
【図2】本発明の加熱調理器の内部平面図である。
【図3】本発明の加熱調理器の側面断面図である。
【図4】(a)は本発明の加熱調理器の排気ファンと調理庫排気口の関係の一例を示す図、同(b)は同じく排気ファンと調理庫排気口の関係の他の一例を示す図である。
【図5】従来例の加熱調理器の内部平面図である。
【符号の説明】
1 本体
4 加熱コイル
7 ロースター部
8 調理庫
9 ロースター用ヒータ
13、14 排気口
15 調理庫排気口
16 排気ファン
17 排気ダクト
18 触媒
19 触媒ヒータ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device having a roaster.
[0002]
[Prior art]
A conventional cooking device with a roaster generates eddy currents in a heated object such as an iron pan placed on the top plate by a roaster section that bakes fish etc. in the main body and magnetic flux generated by a heating coil. A combination of induction heating means for heating the object to be heated and heater heating means for heating the object to be heated placed on the top plate by the radiation of the radiant heater is the mainstream. This type of cooker that uses electricity as an energy source is becoming increasingly popular because it has less heat radiation to the object other than the object to be heated, has good thermal efficiency, and high safety compared to a cooker of gas or other combustion system.
[0003]
This conventional example will be described with reference to FIGS. FIG. 1 is an external perspective view of a conventional cooking device according to the present invention and a state where the cooking device is assembled in a cooking table, and FIG. 5 is an internal plan view of a conventional cooking device.
[0004]
In the figure, a top plate 2 for placing an object to be heated (not shown) is provided on the upper surface of a main body 1, and two induction heating portions 3 and one heater heating portion 5 are provided on the top plate 2 portion. Below the top plate 2, there are two heating coils 4 and a control board 10, a cooling fan 12 for cooling them, a heater 6, and a roaster section 7 having a cooking cabinet 8. A heater 9 is provided.
[0005]
The exhaust port 11 opened upward on the rear right side of the main body 1, the cooling fan 12 provided in the vicinity of the intake port 11 in the main body 1, and two exhaust ports opened upward on the rear left side of the main body 1 13 is provided.
[0006]
And inside the main body 1, it has the exhaust duct 17 which forms the air path from the cooking chamber exhaust port 15 of the rear part of the cooking chamber 8 to the exhaust port 14 behind the cooking chamber 8, and the catalyst 18 and the catalyst are formed in the cooking chamber exhaust port 15 portion. A heater 19 is provided, and an exhaust fan 16 is provided in the exhaust duct 17.
[0007]
The operation of the above configuration will be described. In FIG. 5, arrows indicate the air flow.
[0008]
When the user puts an object to be heated (not shown) into the cooking chamber 8 of the roaster unit 7 and sets cooking power or the like to start cooking, the control board 10 sends a control signal to the roaster heater 9, and this signal As a result, the roaster heater 9 is energized to heat the object to be heated (not shown).
[0009]
At the same time, another object to be heated (not shown) is placed on one of the induction heating units 3 on the top plate 2, and the cooking is started by setting the heating power and the like. Then, the control board 10 outputs a control signal, drives the heating coil 4 below the induction heating unit 3, and heats an object to be heated (not shown) placed above.
[0010]
When cooking is started, the control board 10 outputs a control signal to the exhaust fan 16, the cooling fan 12, and the catalyst heater 19 in addition to the above. By this control signal, the exhaust fan 16 is driven, sucks air from the cooking chamber exhaust port 15, and blows air to the rear exhaust duct 17. At this time, air containing oil smoke generated from an object to be heated (not shown) in the cooking chamber 8 is purified by the action of the catalyst 18 heated and activated by the catalyst heater 19, and then into the exhaust duct 17. The air is blown and discharged to the outside of the main body 1 through the second exhaust port 14.
[0011]
Further, similarly, the cooling fan 12 driven by the control signal of the control board 10 sucks outside air from the intake port 11 and blows air to the front control board 10. The cooling air cools the control board 10 and then flows through the inside of the main body 1 to cool the two heating coils 4 and the like, and is discharged out of the main body 1 through the first exhaust port 13.
[0012]
During cooking, the cooling and exhaust operations are performed as described above. When cooking is completed, the control board 10 stops outputting the control signal, and the roaster heater 9, exhaust fan 16, cooling fan 12, catalyst heater 19 and heating are stopped. Stop the operation of the coil 4 and the like.
[0013]
By the way, although the electronic components etc. mounted in the heating coil 4 and the control board 10 are cooled by the cooling fan 12, as described above, the heat generated from the cooking chamber 8 at the time of simultaneous heating of roaster heating and induction heating or the like. As a result, the temperature of the nearby heating coil 4 and electronic components mounted on the control board 10 rises considerably. Therefore, in order to cool them, a complicated air passage is formed inside the main body 1 or an expensive electronic device with a high temperature rating is used. There was a need to use parts.
[0014]
JP-A-2001-208359 and Japanese Patent No. 3152165 are examples of the above similar examples.
[0015]
[Problems to be solved by the invention]
As described above, in the conventional heating cooker, the electronic components mounted on the nearby heating coil 4 or the control board 10 by the heat generated from the cooking chamber 8 at the time of simultaneous heating of the roaster heating and the induction heating or the like. The temperature rise has increased, and it has been necessary to form a complicated air passage inside the main body 1 in order to cool them.
[0016]
This invention solves the said subject, improves the cooling efficiency of the heating coil near a cooking cabinet, the electronic component etc. which were mounted in the control board, and purification | cleaning of the air containing the smoke which generate | occur | produces in a cooking cabinet simultaneously What does not reduce the capability is realized with a simple configuration that does not increase the cost.
[0017]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a heating coil, a control board for controlling the heating coil, a cooling fan for cooling the heating coil and the control board, a roaster unit having a cooking chamber, A cooking chamber exhaust port that discharges air in the cooking chamber, a catalyst and a catalyst heater provided in the cooking chamber exhaust port portion, an exhaust fan that is provided behind the cooking chamber exhaust port and sucks air in the cooking chamber An exhaust duct for discharging the air sucked by the exhaust fan, an intake port for sucking outside air by the cooling fan at the rear of the main body, a first exhaust port for discharging outside air sucked by the cooling fan, in the heating cooker having a second outlet for discharging the air sent from the exhaust duct to the outside of the main body, a gap is provided between the exhaust fan and the cooking chamber outlet, before the above cooling fan A part of the cooling air after cooling the heating coil and the control board is sucked into the exhaust duct from the gap by the exhaust fan, and together with the air discharged from the cooking chamber exhaust port, the main body from the second exhaust port with discharged outside, is obtained by a larger than the amount of air cooking chamber surrounding sucked air quantity of the cooking chamber interior that is sucked into the exhaust fan to the exhaust fan.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The present invention includes a heating coil in the main body, a roaster unit having a cooking chamber, an exhaust duct communicating with the cooking chamber, an exhaust port communicating with the heating coil at a rear portion of the main body, and an exhaust port communicating with the exhaust duct. A heating cooker having a cooking chamber exhaust port at the rear of the cooking chamber, a catalyst and a catalyst heater at the cooking chamber exhaust port, and an exhaust fan behind the cooking chamber exhaust port. it is obtained by constituting the cooking chamber and around the air suction useless.
[0019]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a perspective view of an external appearance of a conventional cooking device according to the present invention and a state where the cooking device is incorporated into a cooking table. FIG. 2 is an internal plan view of the cooking device of the present invention, and FIG. 3 is a side sectional view of the cooking device of the present invention. FIG. 4A is a diagram showing an example of the relationship between the exhaust fan and the cooking chamber exhaust port of the heating cooker of the present invention, and FIG. 4B is a diagram showing another example of the relationship between the exhaust fan and the cooking chamber exhaust port. It is.
[0021]
In the figure, 1 is a main body of a heating cooker. Reference numeral 2 denotes a top plate on which an object to be heated (not shown) such as an iron pan is placed, and is provided horizontally on the upper surface of the main body 1.
[0022]
Reference numeral 3 denotes an induction heating unit, which is provided on the left and right sides, and is a portion for induction heating an object to be heated (not shown) placed on the top plate 2. Corresponding directly below these, a heating coil 4 is provided in the main body 1 to generate a magnetic flux that heats an object to be heated (not shown) when a high-frequency current flows during induction heating.
[0023]
Reference numeral 5 denotes a heater heating unit, which is located at the center rear part, and is a part for heating a heated object (not shown) placed on the top plate 2. Corresponding directly below, a heater 6 is provided in the main body 1 for generating radiation when heating the heater and heating an object to be heated (not shown).
[0024]
Reference numeral 7 denotes a roaster section having a cooking chamber 8 provided in the main body 1. A roaster heater 9 is disposed on the upper part of the cooking chamber 8 and is energized to generate radiation and burn fish or the like placed in the cooking chamber 8. The front surface of the roaster unit 7 is opened, and a door is provided in front of the opening, and an object to be heated is taken in and out of the cooking chamber 8 by opening and closing the door.
[0025]
A control board 10 is provided below the top plate 2 and is a circuit board on which electronic components that mainly control the plurality of heating coils 4, the roaster heater 9, and the like are mounted.
[0026]
Reference numeral 11 denotes an air inlet, which is an opening opened upward at the rear of the main body 1. A cooling fan 12 is located near the air inlet 11 in the main body 1 and cools the plurality of heating coils 4 and electronic components mounted on the control board 10.
[0027]
Reference numeral 13 denotes a first exhaust port that communicates with the heating coil 4 and exhausts cooling air from the cooling fan 12 to the outside of the main body 1. The first exhaust port 13 opens upward at the rear of the main body 1.
[0028]
Reference numeral 14 denotes a second exhaust port that communicates with the exhaust duct 17 to be described later and mainly discharges the air in the cooking chamber 8 to the outside of the main body 1, and is an opening portion that is opened upward at the rear portion of the main body 1. In the present embodiment, the first exhaust port 13 is separated and arranged at two locations with the second exhaust port 14 in between.
[0029]
Reference numeral 15 denotes a cooking chamber exhaust port, which is an opening that is arranged at the rear of the cooking chamber 8 and from which the air inside the cooking chamber 8 is discharged.
[0030]
Reference numeral 16 denotes an exhaust fan, which is provided behind the cooking chamber exhaust port 15 and sucks air inside and around the cooking chamber 8, and the amount of air inside the cooking chamber 8 sucked into the exhaust fan 16 is sucked into the exhaust fan 16. It is configured to be larger than the amount of air around the cooking chamber 8 to be cooked.
[0031]
Specifically, as shown in FIG. 4A, the opening area S2 of the suction portion of the exhaust fan 16 is formed larger than the opening area S1 of the cooking chamber exhaust port 15, and the magnitude relationship between the two opening areas S1 and S2. The amount of air inside the cooking chamber 8 sucked into the exhaust fan 16 is adjusted to be larger than the amount of air around the cooking chamber 8 sucked into the exhaust fan 16.
[0032]
Alternatively, as shown in FIG. 5B, the exhaust fan 16 is configured to be disposed with a cooking chamber exhaust port 15 and a gap g, and cooking that is sucked into the exhaust fan 16 by adjusting the gap g. The amount of air inside the cooking cabinet 8 is set to be larger than the amount of air around the cooking cabinet 8 sucked into the exhaust fan 16.
[0033]
In FIG. 4, the solid line arrows indicate the air flow inside the cooking chamber 8, and the broken line arrows indicate the air flow around the cooking chamber 8.
[0034]
An exhaust duct 17 is provided in the main body 1, communicates with the second exhaust port 14, the exhaust fan 16, and the cooking chamber 8, and passes from the cooking chamber 8 through the cooking chamber exhaust port 15 and the exhaust fan 16. An exhaust air path reaching the second exhaust port 14 is formed.
[0035]
Reference numeral 18 denotes a catalyst which is provided at 15 parts of the cooking chamber exhaust port and is heated and activated to purify air containing oily smoke generated from an object to be heated (not shown) in the cooking chamber 8.
[0036]
Reference numeral 19 denotes a catalyst heater, which is provided in the cooking chamber exhaust port 15 and is heated to generate heat to heat the catalyst 18.
[0037]
The operation of the above configuration will be described. 2, 3, and 4, arrows indicate the air flow.
[0038]
When the user puts an object to be heated (not shown) into the cooking chamber 8 of the roaster unit 7 and sets cooking power or the like to start cooking, the control board 10 sends a control signal to the roaster heater 9, and this signal As a result, the roaster heater 9 is energized to heat the object to be heated (not shown).
[0039]
At the same time, another object to be heated (not shown) is placed on one of the induction heating units 3 on the top plate 2, and the cooking is started by setting the heating power and the like. Then, the control board 10 outputs a control signal, drives the heating coil 4 below the induction heating unit 3, and heats an object to be heated (not shown) placed above.
[0040]
When cooking is started, the control board 10 outputs a control signal to the exhaust fan 16, the cooling fan 12, and the catalyst heater 19 in addition to the above. By this control signal, the exhaust fan 16 is driven, sucks air inside the cooking chamber 8 from the cooking chamber exhaust port 15, and blows air to the rear exhaust duct 17. At this time, air containing oil smoke generated from an object to be heated (not shown) in the cooking chamber 8 is purified by the action of the catalyst 18 heated and activated by the catalyst heater 19, and then into the exhaust duct 17. The air is blown and discharged to the outside of the main body 1 through the second exhaust port 14.
[0041]
Further, similarly, the cooling fan 12 driven by the control signal of the control board 10 sucks outside air from the intake port 11 and blows air to the front control board 10. The cooling air cools the control board 10 and then flows through the inside of the main body 1 to cool the two heating coils 4 and the like, and is discharged out of the main body 1 through the first exhaust port 13.
[0042]
By the way, the exhaust fan 16 is arranged so that the opening area S2 of the suction portion is larger than the opening area S1 of the cooking chamber exhaust port 15 or is provided with a gap g from the cooking chamber exhaust port 15. 8. Inhale air inside and around. That is, not only the air inside the cooking chamber 8 but also part of the cooling air from the cooling fan 12 is sucked into the exhaust duct 17 by the exhaust fan 16 and discharged from the main body 1 through the second exhaust port 14. At this time, the amount of air inside the cooking chamber 8 sucked into the exhaust fan 16 is configured to be larger than the amount of air around the cooking chamber 8 sucked into the exhaust fan 16.
[0043]
As a result, the cooling capacity of the cooling fan 12 can be increased at the same time without reducing the purification capacity of the air containing oily smoke generated in the cooking cabinet, and the electronic components mounted on the heating coil 4 and the control board 10 can be further improved. Since it is cooled, the temperature rise of the electronic components mounted on the nearby heating coil 4 or the control board 10 is increased by the heat generated from the cooking chamber 8 at the time of simultaneous heating of roaster heating and induction heating, In order to cool these, it is necessary to form a complicated air passage inside the main body 1, but an effect that a simple air passage structure that does not increase the cost can be obtained.
[0044]
During cooking, the cooling and exhaust operations are performed as described above. When cooking is completed, the control board 10 stops outputting the control signal, and the roaster heater 9, exhaust fan 16, cooling fan 12, catalyst heater 19 and heating are stopped. Stop the operation of the coil 4 and the like.
[0045]
【The invention's effect】
As described above, according to the heating cooker of the present invention, the main body includes the heating coil, the roaster portion having the cooking chamber, and the exhaust duct communicating with the cooking chamber, and communicates with the heating coil at the rear portion of the main body. An exhaust port and an exhaust port communicating with the exhaust duct are provided. A cooking chamber exhaust port is arranged at the rear of the cooking chamber. The cooking chamber exhaust port is provided with a catalyst and a catalyst heater. In the heating cooker provided with a fan, the exhaust fan sucks air inside and around the cooking chamber, and the amount of air inside the cooking chamber sucked into the exhaust fan is larger than the amount of air around the cooking chamber sucked into the exhaust fan. Since it is configured to be large, it improves the cooling efficiency of the heating coil near the cooking cabinet and the electronic parts mounted on the control board, etc., and at the same time does not lower the purification capacity of the air containing oil smoke generated in the cooking cabinet Things It can be achieved with a simple structure that does not cost up.
[0046]
In other words, in the past, when simultaneously heating roaster and induction heating, the heat generated from the cooking chamber increases the temperature of nearby heating coils and electronic components mounted on the control board in order to cool them. Although it was necessary to form a complicated air passage inside the main body, the exhaust fan has a simple structure as described above, which has both the exhaust of the cooking device of the roaster section and the improvement of the cooling capacity of the heating coil etc. A cooling air passage such as a heating coil can be made into a simple structure at the same time without reducing the purification capability of air containing oily smoke generated in the cooking cabinet.
[0047]
As a specific configuration example, if the opening area of the suction part of the exhaust fan is formed slightly larger than the opening area of the cooking chamber exhaust port, the cooking chamber exhaust port and the exhaust fan can be in close contact with each other. A margin can be given to the dimensions.
[0048]
As another specific configuration example, if the exhaust fan is arranged with a clearance from the cooking chamber exhaust port, the opening area of the suction portion of the exhaust fan does not need to depend on the opening area of the cooking chamber exhaust port. The size of can be freely selected.
[0049]
In the above configuration, since a gap is provided between the cooking chamber exhaust port and the exhaust duct in the middle of the air path from the cooking chamber to the outside of the main body, it includes oil smoke generated from the heated object in the cooking chamber. However, there is a risk of air leaking into the main unit, but the air pressure inside the air passage becomes lower than the air pressure outside the air passage, that is, inside the main body due to the action of the exhaust fan provided in the air passage. Air containing oil smoke generated from the heated object does not leak into the main body.
[0050]
Further, since the cooling air passage inside the main body can be made into a simple structure, development is facilitated and the product development process can be shortened. In addition, since the temperature rise of electronic components mounted on the control board can be reduced, inexpensive electronic components having a low temperature rating can be used, and the cost of the product can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view of an external appearance of a conventional cooking device according to the present invention and after incorporation.
FIG. 2 is an internal plan view of the heating cooker according to the present invention.
FIG. 3 is a side sectional view of the cooking device of the present invention.
4A is a view showing an example of the relationship between the exhaust fan and the cooking chamber exhaust port of the cooking device of the present invention, and FIG. 4B is another example of the relationship between the exhaust fan and the cooking chamber exhaust port. FIG.
FIG. 5 is an internal plan view of a conventional cooking device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 4 Heating coil 7 Roaster part 8 Cooking chamber 9 Roaster heaters 13 and 14 Exhaust port 15 Cooking chamber exhaust port 16 Exhaust fan 17 Exhaust duct 18 Catalyst 19 Catalyst heater

Claims (1)

体内に加熱コイルと加熱コイルを制御する制御基板と、加熱コイルと制御基板を冷却する冷却ファンと、調理庫を有するロースター部と、前記調理庫内の空気を排出する調理庫排気口と、調理庫排気口部に備えられた触媒及び触媒ヒータと、前記調理庫排気口の後方に備えられ前記調理庫内部の空気を吸込む排気ファンと、排気ファンが吸込んだ空気を排出するための排気ダクトとを備え、本体後部に前記冷却ファンにより外気を吸い込む吸気口と、前記冷却ファンにより吸込んだ外気を排出する第一の排気口と、前記排気ダクトから送られてくる空気を本体外部に排出する第二の排気口を備えた加熱調理器において、前記調理庫排気口と前記排気ファンの間に隙間を設け、前記冷却ファンで前記加熱コイルと前記制御基板を冷却した後の冷却風の一部を前記排気ファンで前記隙間より排気ダクト内に吸い込み、前記調理庫排気口より排出する空気と一緒に前記第二の排気口より本体外部に排出するとともに、前記排気ファに吸込まれる前記調理庫内部の空気量を前記排気ファンに吸込まれる前記調理庫周囲の空気量より大したことを特徴とする加熱調理器。 A heating coil to the body, a control board for controlling the heating coil, a cooling fan for cooling the heating coil control board, and the roaster unit having a cooking chamber, the cooking chamber outlet for discharging the air in the cooking chamber And a catalyst and a catalyst heater provided in the cooking chamber exhaust port, an exhaust fan that is provided behind the cooking chamber exhaust port and sucks air inside the cooking chamber, and for exhausting air sucked by the exhaust fan An exhaust duct, an intake port for sucking outside air by the cooling fan at the rear of the main body, a first exhaust port for discharging outside air sucked by the cooling fan, and air sent from the exhaust duct to the outside of the main body in the heating cooker having a second exhaust port for discharging, a gap is provided between the exhaust fan and the cooking chamber outlet, after cooling the control board and the heating coil at the cooling fan Some of the cooling air suction More the exhaust duct the gap in the exhaust fan, as well as discharged to the outside of the main body than the second outlet together with the air discharged from the cooking chamber outlet, said exhaust fan cooker, characterized in that the air quantity of the cooking chamber inside the unit was larger than the air volume of the cooking Kurashu circumference sucked into the exhaust fan to be sucked.
JP2001388892A 2001-12-21 2001-12-21 Cooker Expired - Fee Related JP3914761B2 (en)

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JP4525535B2 (en) 2005-09-05 2010-08-18 パナソニック株式会社 Induction heating cooker
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CN110139414A (en) * 2018-02-02 2019-08-16 佛山市顺德区美的电热电器制造有限公司 Cooking apparatus
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