JP2005166568A - Heating cooker - Google Patents

Heating cooker Download PDF

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JP2005166568A
JP2005166568A JP2003406766A JP2003406766A JP2005166568A JP 2005166568 A JP2005166568 A JP 2005166568A JP 2003406766 A JP2003406766 A JP 2003406766A JP 2003406766 A JP2003406766 A JP 2003406766A JP 2005166568 A JP2005166568 A JP 2005166568A
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heating
pan
cooking
induction heating
electric heater
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Mitsuru Honma
満 本間
Hideyuki Kimura
秀行 木村
Noriyuki Isojima
宣之 磯島
Toshio Noguchi
敏夫 野口
Hiroshi Otomo
博 大友
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Hitachi Appliances Inc
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Hitachi Home Tech Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To enhance the user-friendliness of a heating cooker, by making heating and cooking on a pan placing part possible, regardless of the kinds of cooking pans. <P>SOLUTION: The heating cooker is provided with at least one pan placing part 73 for placing a cooking pan 35 on in which articles 36 to be cooked are put, and a heating unit 2 positioned approximately under the pan placing part 73. The heating unit 2 is composed of a first heating means for heating the cooking pan 35 on the placing part 73, and a second heating means of a kind different from that of the first heating means. The first heating means is an induction heating coil 20, and the second heating means is an electric heater 10. The first heating means and the second heating means are arranged approximately concentrically. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、加熱調理器に関するものである。   The present invention relates to a heating cooker.

誘導加熱は被調理鍋下方に設けられた誘導加熱コイルに高周波電流を供給し、誘導加熱コイル周りに発生した磁界によって被調理鍋表面近傍に生じる渦電流に起因して行われるが、加熱できる被調理鍋は金属鍋のみであり、陶磁器などの非金属鍋を加熱することはできない。   Induction heating is performed by supplying high-frequency current to an induction heating coil provided below the cooking pan, and eddy current generated near the surface of the cooking pan by a magnetic field generated around the induction heating coil. Cooking pots are only metal pots, and non-metal pots such as ceramics cannot be heated.

また、加熱できる金属鍋でも鍋材料の比透磁率や抵抗率が高い鉄鍋等では渦電流による鍋発熱が大きく熱効率も良好であるが、アルミ鍋や銅鍋では熱効率が低下する。   Moreover, even in a metal pan that can be heated, an iron pan having a high relative permeability or resistivity of the pan material has a large pan heat generation due to eddy current and good thermal efficiency, but an aluminum pan or copper pan has a low thermal efficiency.

鍋材料の比透磁率や抵抗率が低い金属鍋を誘導加熱する加熱技術は特許文献1に記載されているように、従来20kHz程度である加熱コイルに供給する高周波電流を50kHz以上高周波電流にするものであるが、鉄鍋の熱効率が90%以上であるのに対し、アルミ鍋の熱効率は60〜70%程度となる。   As described in Patent Document 1, the heating technique for induction heating a metal pan having a low relative permeability and resistivity of the pot material is a high frequency current that is conventionally supplied to a heating coil of about 20 kHz is set to a high frequency current of 50 kHz or more. Although the thermal efficiency of the iron pan is 90% or more, the thermal efficiency of the aluminum pan is about 60 to 70%.

よって、例えばトッププレートに3口の被調理鍋の鍋載置部がある特許文献2記載の加熱調理器では、鍋載置部の下方に誘導加熱コイルを配置させた2口と、電熱ヒータを配置させた1口を設け、被調理鍋の種類に応じてトッププレート上の鍋載置部を置き変えることで、色々な鍋で加熱調理できる構成としている。   Therefore, for example, in the heating cooker described in Patent Document 2 in which the top plate has a pan mounting portion of three cooked pots, an induction heater coil is disposed below the pan mounting portion, and an electric heater is provided. It is set as the structure which can be heat-cooked with various pans by providing the arranged 1 mouth and replacing the pan mounting part on a top plate according to the kind of to-be-cooked pan.

特公平2−37076号公報Japanese Patent Publication No. 2-33706

特開2003−17232号公報JP 2003-17232 A

特許文献1記載の加熱技術を利用した、特許文献2記載の加熱調理器では、非金属製の被調理鍋を加熱できるトッププレート上の鍋載置部が決められており、複数の非金属製の被調理鍋を同時に加熱できない。   In the heating cooker described in Patent Document 2 using the heating technique described in Patent Document 1, a pan mounting portion on a top plate capable of heating a non-metal cooking pan is determined, and a plurality of non-metallic products are manufactured. I can't heat my cooking pot at the same time.

また、誘導加熱コイルに50kHz前後の高周波電流を供給しなければならない、アルミ鍋などの非磁性金属鍋の加熱が決められた鍋載置部でしかできない。   In addition, the induction heating coil must be supplied with a high frequency current of about 50 kHz, and can only be heated in a pan mounting portion where heating of a nonmagnetic metal pan such as an aluminum pan is determined.

また、アルミ鍋を誘導加熱できない従来構成の加熱調理器では、アルミ鍋での加熱調理は電熱ヒータ加熱を行う鍋載置部でしか行うことができない。   Moreover, in the cooking device of the conventional structure which cannot carry out induction heating of an aluminum pan, the cooking with an aluminum pan can be performed only in the pan mounting part which performs an electric heater heating.

上記のような被調理鍋により鍋載置部が限定される加熱調理器では、調理時に使用される被調理鍋の構成が制限され、使い勝手が良好でない。   In the cooking device in which the pan placement portion is limited by the cooking pan as described above, the configuration of the cooking pan used at the time of cooking is limited, and the usability is not good.

本願発明は、上記の課題のうち少なくとも1つを解決するために為されたものである。   The present invention has been made to solve at least one of the above problems.

本発明は、被加熱物を入れた被調理鍋を載置する少なくとも一つの鍋載置部と、該鍋載置部の略下側に位置する加熱ユニットを備え、該加熱ユニットは鍋載置部の被調理鍋を加熱する第一の加熱手段と、該第一の加熱手段と異なる種類の第二の加熱手段を設けた(請求項1)ことにより、被調理鍋に適した加熱方法を選択して効率良い加熱調理ができる。   The present invention comprises at least one pan placing portion for placing a cooking pan containing an object to be heated, and a heating unit positioned substantially below the pan placing portion, the heating unit being placed on a pan A heating method suitable for the cooking pot is provided by providing a first heating means for heating the cooking pot of the portion and a second heating means of a different type from the first heating means (Claim 1). Select and perform efficient cooking.

また、第一の加熱手段が誘導加熱コイルで、第二の加熱手段が電熱ヒータであれば(請求項2)、一ヶ所の鍋載置部で加熱調理できる被調理鍋の材質・種類に制限がなく、使い勝手が良好になる。   In addition, if the first heating means is an induction heating coil and the second heating means is an electric heater (Claim 2), it is limited to the material and type of the cooking pan that can be heated and cooked in one pan mounting portion. There will be no usability.

また、第一の加熱手段と第二の加熱手段が略同心円状に配置する(請求項3)ことにより、二つの加熱手段を組み合わせて効率の良い加熱調理ができる。   In addition, by arranging the first heating means and the second heating means substantially concentrically (claim 3), efficient cooking can be performed by combining the two heating means.

また、誘導加熱コイルと前記電熱ヒータが内側から外側に向かって誘導加熱コイル、電熱ヒータ、誘導加熱コイルの順に略同心円状に配置(請求項4)したことにより、誘導加熱コイルのみ或いは電熱ヒータのみで加熱する場合でも被調理鍋を少ない加熱ムラで加熱調理できる。   Further, the induction heating coil and the electric heater are arranged substantially concentrically in the order of the induction heating coil, the electric heater, and the induction heating coil from the inside to the outside, so that only the induction heating coil or only the electric heater is provided. Even when heated by cooking, the cooking pot can be cooked with little heating unevenness.

或いは、被調理鍋の種類を判別する鍋検知手段を備え、該鍋検知手段の鍋判別情報に基づいて第一の加熱手段と第二の加熱手段の加熱量を制御(請求項5)し、被調理鍋に適した加熱状態で調理を行うことができる。   Alternatively, it comprises pan detection means for discriminating the type of cooking pot, and controls the heating amounts of the first heating means and the second heating means based on the pan discrimination information of the pot detection means (Claim 5). Cooking can be performed in a heating state suitable for the cooking pan.

本発明によれば、トッププレート上に載置される被調理鍋の種類によらず、加熱することができ、使い勝手の良好な加熱調理器を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, it can heat regardless of the kind of to-be-cooked pan mounted on a top plate, and can provide the cooking device with favorable usability.

図1に本発明の第一の実施例の加熱調理器の斜視図を、図2に図1に配置された本発明の加熱ユニット2の斜視図を、図3に図1の右側の誘導加熱コイル側の側面断面図を示す。   1 is a perspective view of the heating cooker according to the first embodiment of the present invention, FIG. 2 is a perspective view of the heating unit 2 of the present invention arranged in FIG. 1, and FIG. 3 is an induction heating on the right side of FIG. The side sectional view on the coil side is shown.

図1から3は本発明の加熱調理器の一例として、トッププレート70上に左右二口の被加熱物36を入れた被調理鍋35を載置する鍋載置部73a、73bを設けたビルトイン型(システムキッチン一体型)IHクッキングヒータに適用したものである。   FIGS. 1 to 3 show, as an example of the heating cooker of the present invention, a built-in in which pan mounting portions 73a and 73b for mounting a cooking pan 35 on which a heated object 36 having two left and right mouths is placed on a top plate 70 are provided. This is applied to a mold (system kitchen integrated type) IH cooking heater.

また、鍋載置部73は三口或いはそれ以上の口数であってもよい。   Moreover, the pan mounting part 73 may have three or more mouthpieces.

ここで、本発明は被調理鍋35を載置する鍋載置部73を少なくとも一つ設けたIHクッキングヒータであれば、ビルトイン型でなくとも据置型(流し台にそのまま配置)でも容易に適用できることは言うまでもない。   Here, if the present invention is an IH cooking heater provided with at least one pan placing portion 73 for placing the cooking pan 35, it can be easily applied to both a built-in type and a stationary type (arranged as it is on a sink). Needless to say.

また、卓上型の電磁調理器であってもよい。   Moreover, a desktop type electromagnetic cooker may be used.

図において、加熱調理器の本体9上面のトップフレーム72にはトッププレート70と、本体9内部の空気を出入りさせる通気孔71が設けられている。   In the figure, the top frame 72 on the upper surface of the main body 9 of the heating cooker is provided with a top plate 70 and a vent hole 71 through which air inside the main body 9 enters and exits.

また、トッププレート70の下方には鍋載置部73a、73bの略下側位置に第一の加熱手段である誘導加熱コイル20及び、第一の加熱手段と異なる種類の第二の加熱手段である電熱ヒータ10から構成される本発明の加熱ユニット2が設けられている。   Further, below the top plate 70, there are an induction heating coil 20 as a first heating means and a second heating means of a type different from the first heating means at a position substantially below the pan placement portions 73a and 73b. There is provided a heating unit 2 of the present invention constituted by an electric heater 10.

本体9の正面側には例えば魚などを焼くロースター8の投入口、及び被調理鍋35の火加減やロースター8の加熱具合を操作する操作パネル6を備えており、その火力調整量をトッププレート70下方の表示パネル74に表示する。   On the front side of the main body 9, for example, an insertion port for a roaster 8 for grilling fish and the like, and an operation panel 6 for operating the cooking pan 35 and heating the roaster 8 are provided. 70 is displayed on the display panel 74 below.

本体9の左側には奥行き方向に長いロースター8が配置されるため、誘導加熱コイル20を誘導加熱するために必要な例えばインバータ等の電子部品42が実装された回路基板41は本体9の右側及び右側の加熱ユニット2下方に位置する回路ユニット4に搭載される。   Since the roaster 8 that is long in the depth direction is disposed on the left side of the main body 9, the circuit board 41 on which electronic components 42 such as an inverter necessary for induction heating of the induction heating coil 20 are mounted The circuit unit 4 is mounted below the right heating unit 2.

本発明の加熱ユニット2の下方に設けられる部品構成は、図1では本体9の左側がロースター8で右側が回路基板41を実装した回路ユニット4の配置であるが、本発明では逆の配置、つまり本体9の右側がロースター8で左側が回路ユニット4の配置でも差し支えない。   The component structure provided below the heating unit 2 of the present invention is an arrangement of the circuit unit 4 in which the left side of the main body 9 is mounted on the roaster 8 and the right side is mounted with the circuit board 41 in FIG. That is, the right side of the main body 9 may be disposed on the roaster 8 and the left side may be disposed on the circuit unit 4.

また、ロースター8が本体9の中央に配置され、回路ユニット4を左右に分配する配置であってもよいし、ロースター8が本体9の中央に配置され、回路ユニット4を左右どちらか一方にのみ配置する構成であっても差し支えない。   The roaster 8 may be arranged in the center of the main body 9 and the circuit unit 4 may be distributed to the left and right. Alternatively, the roaster 8 may be arranged in the center of the main body 9 and the circuit unit 4 may be arranged only in either the left or right. Even if it is the structure to arrange, it does not interfere.

一方、誘導加熱コイル20と電熱ヒータ10から構成される本発明の加熱ユニット2は、図1のように二口の鍋載置部73a、73b両方(三口以上の場合も全て)設けてもよいが、いずれか一方だけであってもよい。   On the other hand, the heating unit 2 of the present invention composed of the induction heating coil 20 and the electric heater 10 may be provided with both of the two pan mounting parts 73a and 73b (all in the case of three or more) as shown in FIG. However, it may be only one of them.

この場合、誘導加熱コイル20と電熱ヒータ10から構成される本発明の加熱ユニット2とは別に、誘導加熱コイル20だけで構成される加熱ユニット、或いは電熱ヒータ10のみで構成される加熱ユニットを利用すればよい。   In this case, apart from the heating unit 2 of the present invention constituted by the induction heating coil 20 and the electric heater 10, a heating unit constituted only by the induction heating coil 20 or a heating unit constituted only by the electric heater 10 is used. do it.

回路基板41は電子部品42や該電子部品42に設置されるヒートシンク43の個数や配線(図示せず)本数などによって容積が決められるため、電子部品42が多いほど、ロースター8側方の限られた空間に、一枚の基板上に実装できなくなり、ロースター8側方に配置した回路ユニット4の容積形状に合わせて複数枚配置される。   The volume of the circuit board 41 is determined by the number of electronic components 42 and the number of heat sinks 43 installed in the electronic components 42 and the number of wirings (not shown). Therefore, the more electronic components 42, the more limited the side of the roaster 8 is. In such a space, it becomes impossible to mount on a single substrate, and a plurality of sheets are arranged in accordance with the volume shape of the circuit unit 4 arranged on the side of the roaster 8.

ここで、回路ユニット4は回路基板41などを本体9内部に収納する際の作業性を良好にするために設けた箱体で、回路ユニット4ごと本体9への着脱が容易にできるが、直接本体9の内部に回路基板41などを直接設置した構成でもよい。   Here, the circuit unit 4 is a box provided to improve workability when the circuit board 41 or the like is housed in the main body 9 and can be easily attached to and detached from the main body 9 together with the circuit unit 4. A configuration in which the circuit board 41 or the like is directly installed inside the main body 9 may be employed.

回路ユニット4の回路基板41には被調理鍋35の種類を判別する鍋検知手段(図示せず)が備えられている。   The circuit board 41 of the circuit unit 4 is provided with a pan detecting means (not shown) for discriminating the type of the cooking pan 35.

誘導加熱では被調理鍋35の種類により誘導加熱コイル20のインピーダンスが異なるため、前記鍋検知手段により入力電流及びコイル電流を検知して比較すれば、鍋種類の特定など鍋判別情報を得ることができ、さらには被調理鍋35が誘導加熱できるか否か判別することができる。   In induction heating, since the impedance of the induction heating coil 20 differs depending on the type of the cooking pan 35, if the input current and the coil current are detected and compared by the pan detection means, the pan discrimination information such as the pan type identification can be obtained. In addition, it can be determined whether the cooking pot 35 can be induction-heated.

回路ユニット4の回路基板41には誘導加熱コイル20a、20bに供給する電流量を監視するセンサ(図示せず)が設けられ、被調理鍋35が誘導加熱可能か否か判別することができる。   The circuit board 41 of the circuit unit 4 is provided with a sensor (not shown) for monitoring the amount of current supplied to the induction heating coils 20a, 20b, and it can be determined whether the cooking pot 35 can be induction heated.

本実施例では回路基板41a、41b、41cを回路ユニット4の高さ方向に三段積層した構成であるが、回路基板41を幅方向に複数並置してもよく、いずれの場合もファン装置5から吹き出る冷却用の空気86の流れ方向と並行に配置される。   In this embodiment, the circuit boards 41a, 41b, and 41c are stacked in three stages in the height direction of the circuit unit 4, but a plurality of circuit boards 41 may be juxtaposed in the width direction. It arrange | positions in parallel with the flow direction of the cooling air 86 which blows off from.

ファン装置5はファン55とモータ56、ケーシング54から構成されるシロッコファンで、本体9の前面側9aから見て回路ユニット4内の回路基板41後方に配置される。   The fan device 5 is a sirocco fan composed of a fan 55, a motor 56, and a casing 54, and is disposed behind the circuit board 41 in the circuit unit 4 when viewed from the front side 9 a of the main body 9.

つまり、ファン装置5からの冷却用の空気86の吹き出し側に回路基板41が配置され、ファン55から吹き出た空気86が直接回路基板41に流れる構成となる。   That is, the circuit board 41 is arranged on the side of the cooling air 86 blown from the fan device 5, and the air 86 blown from the fan 55 flows directly to the circuit board 41.

また、図3のように回路基板41を冷却した空気86は回路ユニット4の上部、つまり、表示パネル74の下側及び加熱ユニット2の下側に設けられた開口31a、31b、31c(図3に図示せず図1参照)から吹き出し、表示パネル74と加熱ユニット2を冷却する空気50となる。   Further, as shown in FIG. 3, the air 86 that has cooled the circuit board 41 is provided with openings 31a, 31b, and 31c (see FIG. 3) provided above the circuit unit 4, that is, below the display panel 74 and below the heating unit 2. The air 50 is blown out from the display panel 74 and the heating unit 2 (see FIG. 1).

加熱ユニット2は少なくとも3ヶ所設けられた、例えばバネなどを用いた弾力性のある支持部27で支えられており、トッププレート70により下方に押しつけられる。   The heating unit 2 is supported by at least three elastic support portions 27 using, for example, springs, and is pressed downward by the top plate 70.

図4に誘導加熱コイル20a、20bとコイルベース21から構成される図2の加熱ユニット2の側面断面図を示す。   FIG. 4 shows a side cross-sectional view of the heating unit 2 of FIG. 2 composed of induction heating coils 20a and 20b and a coil base 21.

コイルベース21は樹脂性であり、高透磁性部材である棒状のフェライト22が誘導加熱コイル20の下方近傍に放射状に(図示せず)複数本配置される。   The coil base 21 is resinous, and a plurality of rod-like ferrites 22 that are highly magnetically permeable members are arranged radially (not shown) near the lower portion of the induction heating coil 20.

加熱ユニット2の中央にはトッププレート70に接触するように例えばバネで保持された温度センサ29が設けられており、該温度センサ29の検出した温度から被調理鍋35の温度を間接的に測定できる構成となっている。   In the center of the heating unit 2, a temperature sensor 29 held by, for example, a spring is provided so as to contact the top plate 70, and the temperature of the cooking pan 35 is indirectly measured from the temperature detected by the temperature sensor 29. It can be configured.

また、本実施例のコイルベース21には電熱ヒータ10を挟んで外径の異なる誘導加熱コイル20a、20bが略同心円状に設置され、電熱ヒータ10と誘導加熱コイル20a、20bの間隙には断熱材11が設けられている。   In addition, induction heating coils 20a and 20b having different outer diameters are installed in the coil base 21 of this embodiment in a substantially concentric manner across the electric heater 10, and heat insulation is provided in the gap between the electric heater 10 and the induction heating coils 20a and 20b. A material 11 is provided.

つまり、内側から外側に向かって誘導加熱コイル20a、電熱ヒータ10、誘導加熱コイル20bの順に三重に配置されている。   That is, the induction heating coil 20a, the electric heater 10, and the induction heating coil 20b are arranged in triple order from the inside toward the outside.

ここで、断熱材11としてはガラスウールやロックウールなどが考えられる。   Here, as the heat insulating material 11, glass wool, rock wool, etc. can be considered.

誘導加熱コイル20a、20bと電熱ヒータ10は断熱材11を介して配置距離を保っており、電熱ヒータ10が誘導加熱コイル20a、20bの誘導加熱によって発熱し難い位置関係になっている。   The induction heating coils 20a, 20b and the electric heater 10 are arranged at a distance from each other via the heat insulating material 11, and the electric heater 10 is in a positional relationship that hardly generates heat due to the induction heating of the induction heating coils 20a, 20b.

上記実施例では内側から誘導加熱コイル20a、電熱ヒータ10、誘導加熱コイル20bの順に三重に配置した例を示したが、本発明では最低、誘導加熱コイル20aと電熱ヒータ10或いは電熱ヒータ10と誘導加熱コイル20bの二重配置でもよいし、三重以上の略同心円状の配置であってもよい。   In the above embodiment, the example in which the induction heating coil 20a, the electric heater 10, and the induction heating coil 20b are arranged in order from the inside is shown. However, in the present invention, at least the induction heating coil 20a and the electric heater 10 or the electric heater 10 and the induction are arranged. A double arrangement of the heating coils 20b or a substantially concentric arrangement of triple or more may be used.

また、図5に示すように、内側から電熱ヒータ10a、誘導加熱コイル20、電熱ヒータ10bの順で略同心円状に配置した構成でも差し支えない。   Moreover, as shown in FIG. 5, the electric heater 10a, the induction heating coil 20, and the electric heater 10b may be arranged in the order of concentric circles from the inside.

尚、本発明では冷却系を前記方式にこだわる必要はなく、他の方法であっても差し支えない。   In the present invention, it is not necessary to stick to the above cooling system, and other methods may be used.

よって、本実施例の加熱調理器では一つの鍋載置部73a或いは73bの下方に誘導加熱コイル20a、20bと電熱ヒータ10で構成された加熱ユニット2が設けられ、鍋載置部73a或いは73bに載置された被調理鍋35が誘導加熱コイル20a、20bで誘導加熱できる金属製であれば、誘導加熱コイル20a、20bで加熱調理を、誘導加熱し難い金属製或いは非金属であれば電熱ヒータ10で加熱調理を行う構成となる。   Therefore, in the cooking device of the present embodiment, the heating unit 2 composed of the induction heating coils 20a, 20b and the electric heater 10 is provided below the one pan mounting portion 73a or 73b, and the pan mounting portion 73a or 73b. If the to-be-cooked pan 35 placed on is made of metal that can be induction-heated by induction heating coils 20a and 20b, cooking is performed by induction heating coils 20a and 20b, and if it is made of metal or nonmetal that is difficult to induction-heat, electric heating The heating cooking is performed by the heater 10.

ここで、被調理鍋35の材質に応じて誘導加熱コイル20と電熱ヒータ10の両方を同時または交互に制御して加熱調理を行う構成でもよい。   Here, according to the material of the to-be-cooked pan 35, the structure which heats cooking by controlling both the induction heating coil 20 and the electric heater 10 simultaneously or alternately may be sufficient.

以上の構成より、第一の実施例の加熱調理器の動作について、図1から図4を用いて被調理鍋35がトッププレート70上の右側の鍋載置部73aに配置された場合を例に説明する。   With the above configuration, the operation of the cooking device of the first embodiment is an example in which the cooking pot 35 is disposed on the right pan mounting portion 73a on the top plate 70 with reference to FIGS. Explained.

例えば水等の被加熱物36の入った被調理鍋35の加熱は、トッププレート70上の右側の鍋載置部73aに載置し、本体9前方に備えた操作パネル6の主電源69を入れ、火力調整用のダイヤル68を回転させることにより開始される。   For example, the cooking pan 35 containing the heated object 36 such as water is placed on the right side pan placing portion 73a on the top plate 70, and the main power source 69 of the operation panel 6 provided in front of the main body 9 is turned on. It is started by rotating the dial 68 for adjusting the heating power.

また、その火力調整量はトッププレート70下方の前方に配置された表示パネル74に表示される。   Further, the heating power adjustment amount is displayed on a display panel 74 arranged in front of the top plate 70 below.

被調理鍋35が誘導加熱コイル20で誘導加熱が容易な金属製例えば鉄鍋などの磁性金属鍋であれば、ダイヤル68の回転量を調整し、その調整量に応じて誘導加熱コイル20a、20bに流れる高周波電流量が制御されることにより、被調理鍋35の誘導加熱が開始される。   If the to-be-cooked pan 35 is a magnetic metal pan such as an iron pan that is easy to induction heat with the induction heating coil 20, the amount of rotation of the dial 68 is adjusted, and the induction heating coils 20a, 20b are adjusted according to the adjustment amount. The induction heating of the cooking pot 35 is started by controlling the amount of high-frequency current flowing through the cooking pot 35.

一方、被調理鍋35が誘導加熱コイル20で誘導加熱できない材質例えば土鍋などの非磁性金属鍋であれば、電熱ヒータ10にダイヤル68の回転量に応じた電流量を供給して被調理鍋35を加熱する。   On the other hand, if the cooking pan 35 is a material that cannot be induction heated by the induction heating coil 20, for example, a non-magnetic metal pan such as an earthen pan, a current amount corresponding to the rotation amount of the dial 68 is supplied to the electric heater 10 to prepare the cooking pan 35. Heat.

或いは、被調理鍋35が誘導加熱コイル20で誘導加熱しにくい金属製、例えばアルミ鍋や銅鍋などの非磁性金属鍋であれば、ダイヤル68の調理量により誘導加熱コイル20と電熱ヒータ10の両方を制御して被調理鍋35を加熱させる。   Or if the to-be-cooked pan 35 is made of a metal that is not easily induction-heated by the induction heating coil 20, for example, a non-magnetic metal pan such as an aluminum pan or a copper pan, the induction heating coil 20 and the electric heater 10 are controlled by the amount of cooking of the dial 68. Both are controlled and the cooking pot 35 is heated.

これらの鍋種類の判別は、回路ユニット4内部の回路基板41に設けられた電流検出するセンサ(図示せず)により容易に行うことができる。   These types of pans can be easily determined by a sensor (not shown) for detecting current provided on the circuit board 41 inside the circuit unit 4.

また、被調理鍋35を加熱するために誘導加熱コイル20や電熱ヒータ10に電流が流れると同時に、ファン装置5が稼動してトップフレーム72上の通気孔71の下に位置する吸気ダクト60から冷却空気81を吸い込み、回路ユニット4内部に配置されたファン装置5にその冷却空気81を供給する。   Further, at the same time as the current flows through the induction heating coil 20 and the electric heater 10 to heat the cooking pot 35, the fan device 5 is operated and from the intake duct 60 located below the vent hole 71 on the top frame 72. The cooling air 81 is sucked and the cooling air 81 is supplied to the fan device 5 arranged in the circuit unit 4.

誘導加熱コイル20で加熱できる被調理鍋35を加熱調理する場合、被調理鍋35の材質によって加熱効率が左右されるため、熱損失分が誘導加熱コイル20と電子部品42の発熱となるため、ファン装置5による空気86によって誘導加熱コイル20a、20bや電子部品42などの温度上昇を抑制する。   When cooking the cooking pot 35 that can be heated by the induction heating coil 20, the heating efficiency depends on the material of the cooking pot 35, so the heat loss becomes the heat generation of the induction heating coil 20 and the electronic component 42, The air 86 by the fan device 5 suppresses the temperature rise of the induction heating coils 20a and 20b, the electronic component 42, and the like.

これらの部品を冷却した空気86は、トッププレート70正面側を回路ユニット4から開口31a、31b、31cを介して加熱ユニット2の搭載された空間15に入り、本体9背面側9bの排気部62を介してトッププレート70上の通気孔71から排気される。   The air 86 that has cooled these components enters the space 15 in which the heating unit 2 is mounted from the circuit unit 4 through the openings 31a, 31b, and 31c on the front side of the top plate 70, and the exhaust part 62 on the back side 9b of the main body 9 is provided. The air is exhausted from the vent hole 71 on the top plate 70 through the air.

ここで、ファン装置5は予め操作パネル6による加熱調整量によって段階的に、または無段階で風量制御してもよいし、加熱コイル20a及び電子部品42の温度を計測してON/OFF制御や間欠運転による風量調整を行う構成にしてもよい。   Here, the fan device 5 may control the air volume stepwise or steplessly according to the heating adjustment amount by the operation panel 6 in advance, or may measure the temperature of the heating coil 20a and the electronic component 42 to perform ON / OFF control. You may make it the structure which performs the air volume adjustment by intermittent operation.

尚、本発明の第一の実施例では、トッププレート70の鍋載置部73a、73bの下方に配置した加熱ユニット2を同様の構成としたが、誘導加熱コイル20と電熱ヒータ10から構成される加熱ユニット2を少なくとも鍋載置部73の一ヶ所に配置した構成であれば、鍋載置部73が3つ以上でも同様に使い勝手の良好な加熱調理器を提供できることは言うまでもない。   In the first embodiment of the present invention, the heating unit 2 disposed below the pan mounting portions 73a and 73b of the top plate 70 has the same configuration. However, the heating unit 2 includes the induction heating coil 20 and the electric heater 10. It is needless to say that a heating cooker having good usability can be provided even if there are three or more pot mounting portions 73 as long as the heating unit 2 is arranged at least in one place.

図6は本発明の加熱ユニット2を一つ搭載した卓上型の電磁調理器の実施例である。   FIG. 6 shows an embodiment of a tabletop electromagnetic cooker equipped with one heating unit 2 of the present invention.

本実施例では誘導加熱コイル20と電熱ヒータ10から構成される加熱ユニット2の上方に被調理鍋35が載置される鍋載置部73が、本体9の上面に位置するトッププレート70の略中央に設けられている。   In the present embodiment, the pan mounting portion 73 on which the cooking pan 35 is mounted above the heating unit 2 including the induction heating coil 20 and the electric heater 10 is an abbreviation of the top plate 70 positioned on the upper surface of the main body 9. It is provided in the center.

本体9の内部には加熱ユニット2の誘導加熱コイル20と、回路基板41に実装された電子部品42、及び操作パネル7を冷却するためにファン装置5が搭載されている。   A fan device 5 is mounted inside the main body 9 for cooling the induction heating coil 20 of the heating unit 2, the electronic component 42 mounted on the circuit board 41, and the operation panel 7.

ここで、図中のファン装置5は小型の軸流ファンとしたが、本体9内部に搭載可能であればシロッコファンでもよい。   Here, the fan device 5 in the figure is a small axial fan, but may be a sirocco fan as long as it can be mounted inside the main body 9.

本体9の背面側9bにはファン装置5が冷却空気81を吸い込む通気孔60が配置されるとともに、本体9の側面に設けた通気孔62から内部の空気86を排気する構成となっている。   A vent hole 60 through which the fan device 5 sucks the cooling air 81 is arranged on the back side 9 b of the main body 9, and the internal air 86 is exhausted from the vent hole 62 provided on the side surface of the main body 9.

また、本実施例の加熱ユニット2は、誘導加熱コイル20の内側にのみ電熱ヒータ10を配置した構成であるが、逆に誘導加熱コイル20の外側に電熱ヒータ10を配置した構成でもよいし、第一の実施例のように誘導加熱コイル20と電熱ヒータ10を同心円状に複数交互に配置した構成でもよい。   Moreover, although the heating unit 2 of a present Example is the structure which has arrange | positioned the electric heater 10 only inside the induction heating coil 20, conversely the structure which has arrange | positioned the electric heater 10 outside the induction heating coil 20 may be sufficient, A configuration in which a plurality of induction heating coils 20 and electric heaters 10 are alternately arranged concentrically as in the first embodiment may be employed.

加熱ユニット2の略中央位置には温度センサ29が配置され、電熱ヒータ10の過熱防止を行う構成になっている。   A temperature sensor 29 is disposed at a substantially central position of the heating unit 2 to prevent overheating of the electric heater 10.

被調理鍋35の加熱は、トッププレート70の鍋載置部73に被調理鍋35を載置し、本体9の正面側9aの操作パネル7で加熱量を調整して行われる。   The cooking pan 35 is heated by placing the cooking pan 35 on the pan mounting portion 73 of the top plate 70 and adjusting the heating amount with the operation panel 7 on the front side 9 a of the main body 9.

本体9背面側9bのファン装置5は被調理鍋35の加熱開始とともに稼動し、誘導加熱コイル20や電子部品42に冷却する空気86を送風させる。   The fan device 5 on the back side 9b of the main body 9 operates along with the start of heating of the cooking pan 35, and blows the cooling air 86 to the induction heating coil 20 and the electronic component 42.

ファン装置5の稼動は、操作パネル7の設定に応じて行っても良いし、本体9の内部に設けた温度センサ(図示せず)の情報をもとにON/OFFさせる構成としてもよい。   The fan device 5 may be operated according to the setting of the operation panel 7 or may be configured to be turned on / off based on information from a temperature sensor (not shown) provided in the main body 9.

本実施例でも、誘導加熱コイル20と電熱ヒータ10による二つの加熱方式を鍋載置部73の下方に配置した加熱ユニット2に搭載したことにより、誘導加熱ができる金属製調理鍋を誘導加熱コイル20で、誘導加熱し難い金属製調理鍋や誘導加熱できない非金属製調理鍋を電熱ヒータ10を利用してそれぞれ加熱できる。   Also in the present embodiment, a metal cooking pot capable of induction heating is provided by mounting the two heating methods using the induction heating coil 20 and the electric heater 10 on the heating unit 2 disposed below the pan mounting portion 73. 20, a metal cooking pot that is difficult to be induction-heated and a non-metal cooking pot that cannot be induction-heated can be heated using the electric heater 10.

以上のように、図1から図6に示した実施例によれば加熱調理器に搭載される、誘導加熱コイル20と電熱ヒータ10から構成させる加熱ユニット2により、加熱ユニット2上方に載置される被調理鍋35の材質や種類によらず最適な加熱調理ができる。   As described above, according to the embodiment shown in FIG. 1 to FIG. 6, the heating unit 2 configured by the induction heating coil 20 and the electric heater 10 mounted on the heating cooker is placed above the heating unit 2. Regardless of the material and type of the cooking pan 35, the optimum cooking can be performed.

よって、鍋載置部73に応じた被調理鍋35の選択、或いは被調理鍋35に応じた鍋載置部73の選択をする手間がなく、使い勝手の非常に良好な加熱調理器を提供できる。   Therefore, there is no trouble of selecting the cooking pan 35 according to the pan mounting unit 73 or selecting the pan mounting unit 73 according to the cooking pan 35, and it is possible to provide a heating cooker that is very easy to use. .

本発明の第一の実施例における加熱調理器の斜視図である。It is a perspective view of the cooking-by-heating machine in the 1st example of the present invention. 本発明の第一の実施例における加熱ユニットの斜視図である。It is a perspective view of the heating unit in the 1st example of the present invention. 本発明の第一の実施例における加熱調理器の側面断面図である。It is side surface sectional drawing of the heating cooker in the 1st Example of this invention. 本発明の第一の実施例における加熱ユニットの側面断面図である。It is side surface sectional drawing of the heating unit in the 1st Example of this invention. 本発明の第二の実施例における加熱ユニットの側面断面図である。It is side surface sectional drawing of the heating unit in the 2nd Example of this invention. 本発明の第三の実施例における加熱ユニットの斜視図である。It is a perspective view of the heating unit in the 3rd example of the present invention.

符号の説明Explanation of symbols

2・・・加熱ユニット
10・・・電熱ヒータ
20・・・誘導加熱コイル
35・・・被調理鍋
36・・・被加熱物
73・・・鍋載置部


DESCRIPTION OF SYMBOLS 2 ... Heating unit 10 ... Electric heater 20 ... Induction heating coil 35 ... Cooking pot 36 ... To-be-heated object 73 ... Pan mounting part


Claims (5)

被加熱物(36)を入れた被調理鍋(35)を載置する少なくとも一つの鍋載置部(73)と、該鍋載置部(73)の略下側に位置する加熱ユニット(2)を備え、該加熱ユニット(2)は鍋載置部(73)の被調理鍋(35)を加熱する第一の加熱手段と、該第一の加熱手段と異なる種類の第二の加熱手段とで構成されることを特徴とする加熱調理器。 At least one pan placing part (73) for placing a cooking pan (35) containing an object to be heated (36), and a heating unit (2) located substantially below the pan placing part (73) The heating unit (2) includes a first heating means for heating the cooking pan (35) of the pot placing portion (73), and a second heating means of a type different from the first heating means. A cooking device characterized by comprising the above. 前記第一の加熱手段が誘導加熱コイル(20)で、前記第二の加熱手段が電熱ヒータ(10)であることを特徴とする特許請求項1記載の加熱調理器。   The cooking device according to claim 1, wherein the first heating means is an induction heating coil (20) and the second heating means is an electric heater (10). 前記第一の加熱手段と前記第二の加熱手段が略同心円状に配置されることを特徴とする特許請求項1ないし2に記載の加熱調理器。   The cooking device according to claim 1, wherein the first heating unit and the second heating unit are arranged substantially concentrically. 前記誘導加熱コイル(20)と前記電熱ヒータ(10)が内側から外側に向かって誘導加熱コイル(20)、電熱ヒータ(10)、誘導加熱コイル(20)の順に略同心円状に配置されることを特徴とする特許請求項1から3のいずれかに記載の加熱調理器。   The induction heating coil (20) and the electric heater (10) are arranged substantially concentrically in the order of the induction heating coil (20), the electric heater (10), and the induction heating coil (20) from the inside to the outside. The cooking device according to any one of claims 1 to 3, wherein 前記被調理鍋(35)の種類を判別する鍋検知手段を備え、該鍋検知手段の鍋判別情報に基づいて前記第一の加熱手段と前記第二の加熱手段の加熱量を制御することを特徴とする特許請求項1から4のいずれかに記載の加熱調理器。


It comprises pan detection means for discriminating the type of the cooking pan (35), and controls the heating amounts of the first heating means and the second heating means based on the pan discrimination information of the pot detection means. The cooking device according to any one of claims 1 to 4, wherein the cooking device is characterized.


JP2003406766A 2003-12-05 2003-12-05 Heating cooker Pending JP2005166568A (en)

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123087A (en) * 2005-10-28 2007-05-17 Toshiba Corp Heating cooker
JP2007200752A (en) * 2006-01-27 2007-08-09 Toshiba Corp Heating cooker
EP3426001A1 (en) * 2017-07-03 2019-01-09 Electrolux Appliances Aktiebolag Fastening system for a heating element of a cooking hob
JP7486347B2 (en) 2020-05-19 2024-05-17 三菱電機株式会社 Induction Cooker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123087A (en) * 2005-10-28 2007-05-17 Toshiba Corp Heating cooker
JP2007200752A (en) * 2006-01-27 2007-08-09 Toshiba Corp Heating cooker
EP3426001A1 (en) * 2017-07-03 2019-01-09 Electrolux Appliances Aktiebolag Fastening system for a heating element of a cooking hob
WO2019007863A1 (en) * 2017-07-03 2019-01-10 Electrolux Appliances Aktiebolag Fastening system for a heating element of a cooking hob
AU2018296831B2 (en) * 2017-07-03 2023-02-16 Electrolux Appliances Aktiebolag Fastening system for a heating element of a cooking hob
JP7486347B2 (en) 2020-05-19 2024-05-17 三菱電機株式会社 Induction Cooker

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