JP4455565B2 - Electromagnetic induction heating cooker - Google Patents

Electromagnetic induction heating cooker Download PDF

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JP4455565B2
JP4455565B2 JP2006281844A JP2006281844A JP4455565B2 JP 4455565 B2 JP4455565 B2 JP 4455565B2 JP 2006281844 A JP2006281844 A JP 2006281844A JP 2006281844 A JP2006281844 A JP 2006281844A JP 4455565 B2 JP4455565 B2 JP 4455565B2
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heating coil
diameter
induction heating
display unit
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敏 永井
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Mitsubishi Electric Corp
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Description

本発明は、複数の加熱コイルを有する電磁誘導加熱調理器に関するものである。   The present invention relates to an electromagnetic induction heating cooker having a plurality of heating coils.

従来の電磁誘導加熱調理器に、例えば、独立した高周波発生装置とそれぞれ対応する第１，第２の加熱部を有し、第１の加熱部は複数の加熱コイルにより構成され、この第１の加熱コイルの加熱部に設けた複数の加熱コイルの一方の加熱コイルには、所要時に第２の加熱部の高周波発生装置より高周波電流を供給するようにしたものがある（例えば、特許文献１参照）。   A conventional electromagnetic induction heating cooker has, for example, first and second heating units respectively corresponding to independent high-frequency generators, and the first heating unit includes a plurality of heating coils. One heating coil of the plurality of heating coils provided in the heating part of the heating coil is one in which a high-frequency current is supplied from a high-frequency generator of the second heating part when necessary (for example, see Patent Document 1). ).

特開平５−３４７１８０号公報（第３頁、図１）JP-A-5-347180 (page 3, FIG. 1)

従来の電磁誘導加熱調理器は、一般に、ほぼ等しい外径の複数の加熱コイルが用いられており、これら加熱コイルは天板の下に設置され、天板の上面には、加熱コイルと同心上に、かつ、加熱コイルの外径に対応した大きさの鍋位置表示部が印刷されており、いずれかの鍋位置表示部上に鍋を載置し、調理するようになっている。このため、小さい径の鍋を鍋位置表示部上に載置して調理を行うと、鍋の径が加熱コイルの径より小さいため、磁束が空中に漏れて鍋を効率よく加熱することができなかった。   Conventional electromagnetic induction heating cookers generally use a plurality of heating coils having substantially the same outer diameter. These heating coils are installed under the top plate, and the top surface of the top plate is concentric with the heating coil. And the pan position display part of the magnitude | size corresponding to the outer diameter of a heating coil is printed, and a pan is mounted on one of the pan position display parts, and it cooks. For this reason, when cooking with a small-diameter pan placed on the pan position indicator, the diameter of the pan is smaller than the diameter of the heating coil, so the magnetic flux leaks into the air and the pan can be efficiently heated. There wasn't.

本発明は、上記の課題を解決するためになされたもので、操作部の部品を共通化することにより、コストの低減がはかれ、取付が容易で生産性を向上することのできる電磁誘導加熱調理器を提供することを目的としたものである。   The present invention has been made in order to solve the above-described problems, and by using the parts of the operation unit in common, the cost can be reduced, and the electromagnetic induction heating that can be easily installed and can improve the productivity. The purpose is to provide a cooker.

本発明に係る電磁誘導加熱調理器は、内部に径の大きい誘導加熱コイルと径の小さい誘導加熱コイル、これら誘導加熱コイルをそれぞれ駆動する駆動回路、冷却ファン等が収容された筐体と、該筐体の上部開口部に取付けられ前記誘導加熱コイルの直上にそれぞれ鍋位置表示部が設けられた天板とを備え、複数の点灯片を並設してなり、前記鍋位置表示部の近傍に設けられて前記径の大きい誘導加熱コイルと径の小さい誘導加熱コイルの出力電力をそれぞれ長さで表示する第１の表示部及び第２の表示部と、前記径の大きい誘導加熱コイルと径の小さい誘導加熱コイルに供給する駆動回路の出力電力をそれぞれ調整すると共に、前記出力電力に対応して前記第１、第２の表示部の点灯片を点灯させる第１の操作部及び第２の操作部とを有し、最大出力時における前記第１の表示部の表示長さＬ1を、最大出力時における前記第２の表示部の表示長さＬ2より長く構成すると共に、前記第１の操作部と第２の操作部を同一操作量操作したときに表示される前記第１の表示部の表示長さと、前記第２の表示部の表示長さとの比をＬ1対Ｌ2としたものである。 An electromagnetic induction heating cooker according to the present invention includes an induction heating coil having a large diameter, an induction heating coil having a small diameter, a drive circuit for driving the induction heating coils, a cooling fan, and the like housed therein, A top plate attached to the upper opening of the housing and provided with a pan position display section directly above the induction heating coil, and a plurality of lighting pieces arranged in parallel, in the vicinity of the pan position display section A first display unit and a second display unit which are provided to display the output power of the induction heating coil having a large diameter and the induction heating coil having a small diameter, respectively; and the induction heating coil having a large diameter A first operation unit and a second operation for adjusting the output power of the drive circuit supplied to the small induction heating coil and lighting the lighting pieces of the first and second display units corresponding to the output power, respectively. And A display length L 1 of the first display unit at the time of high output, as well as configuration longer than the display length L 2 of the second display unit at the maximum output, the first operating portion and the second The ratio between the display length of the first display unit and the display length of the second display unit that are displayed when the operation unit is operated with the same operation amount is L 1 to L 2 .

本発明に係る電磁誘導加熱調理器は、第１の操作部と第２の操作部との操作量を同一にすることができるので、第１の操作部と第２の操作部に同一の部品を用いることができ、部品の共通化によりコストを低減することができる。また、製造時に第１の操作部と第２の操作部を間違えて取付けることがないので、歩留りがよく生産性を向上することができる。   In the electromagnetic induction heating cooker according to the present invention, since the operation amounts of the first operation unit and the second operation unit can be made the same, the same parts in the first operation unit and the second operation unit The cost can be reduced by sharing parts. In addition, since the first operation unit and the second operation unit are not mistakenly attached at the time of manufacture, the yield is good and the productivity can be improved.

［実施の形態１］
図１は本発明の実施の形態１に係る電磁誘導加熱調理器（以下、電磁調理器という）の要部の断面図、図２は図１の天板の平面図及び天板と誘導加熱コイル（以下、加熱コイルという）の関係を示す断面図である。 [Embodiment 1]
1 is a cross-sectional view of a main part of an electromagnetic induction heating cooker (hereinafter referred to as an electromagnetic cooker) according to Embodiment 1 of the present invention, and FIG. 2 is a plan view of the top plate of FIG. 1 and the top plate and induction heating coil. It is sectional drawing which shows the relationship (henceforth a heating coil).

上部にフランジを有する電磁調理器の筐体１内には、大径の加熱コイル２と小径の加熱コイル３が設置されており、それぞれ電源線６，７を介して高周波駆動回路４，５（以下、単に駆動回路という）から高周波電力が供給される。この場合、大径の加熱コイル２には例えば２ＫＷ、小径の加熱コイル３には例えば１ＫＷのように、加熱コイルの径に対応して供給する高周波電力が設定される。なお、図示してないが、筐体１内には駆動回路４，５等の発熱部を冷却する冷却ファンが設けられている。   A large-diameter heating coil 2 and a small-diameter heating coil 3 are installed in a casing 1 of an electromagnetic cooker having a flange at the top, and high-frequency drive circuits 4 and 5 ( Hereinafter, high-frequency power is supplied from a drive circuit). In this case, high frequency power to be supplied corresponding to the diameter of the heating coil is set, for example, 2 KW for the large diameter heating coil 2 and 1 KW for the small diameter heating coil 3, for example. Although not shown in the figure, a cooling fan for cooling the heat generating parts such as the drive circuits 4 and 5 is provided in the housing 1.

また、筐体１の上部開口部を閉塞し、調理鍋を載置する天板８の上面には、大径の加熱コイル２に対応してこの加熱コイル２と同心的に、かつ加熱コイル２の外径とほぼ等しい径の円形の大きい鍋位置表示部１０が印刷されており、また、小径の加熱コイル３に対応して、同様に円形の小さい鍋位置表示部１１が印刷されている。
そして、筐体１は、そのフランジをテーブル等２５に設けた開口部の縁部に係止し、テーブル等２５内に収容されて設置される。なお、図示してないが、筐体１の手前側（前面側）には操作部等が設けられている。 Moreover, the upper opening part of the housing | casing 1 is obstruct | occluded, and the upper surface of the top plate 8 which mounts a cooking pot is concentric with this heating coil 2 corresponding to the large diameter heating coil 2, and the heating coil 2 A large circular pan position display unit 10 having a diameter substantially equal to the outer diameter of the same is printed, and a small circular pan position display unit 11 is also printed corresponding to the small diameter heating coil 3.
Then, the casing 1 is installed by being accommodated in the table or the like 25 by locking its flange to the edge of the opening provided in the table or the like 25. Although not shown, an operation unit and the like are provided on the front side (front side) of the housing 1.

上記のように構成した本実施の形態において、小さい鍋で調理する場合は、図１に示すように小さい鍋位置表示部１１上に鍋２６を載置し、小径の加熱コイル３に高周波電力を供給する。このとき、小さい鍋２６は、小さい鍋位置表示部１１のほぼ全面覆うように載置されるので、小径の加熱コイル３から磁束が空中に漏れることがほとんどなく、効率よく鍋２６が加熱されて調理を行うことができ、無駄な電力を消費することがない。   In the present embodiment configured as described above, when cooking in a small pan, as shown in FIG. 1, the pan 26 is placed on the small pan position display unit 11, and high-frequency power is applied to the small-diameter heating coil 3. Supply. At this time, since the small pan 26 is placed so as to cover almost the entire surface of the small pan position display unit 11, the magnetic flux hardly leaks into the air from the small diameter heating coil 3, and the pan 26 is efficiently heated. Cooking can be performed and wasteful power is not consumed.

大きい鍋で調理する場合は、大きい鍋位置表示部１０上に鍋を載置し、大径の加熱コイル２に通電して調理を行う。この場合も大径の加熱コイル２から磁束が空中に漏れることはほとんどないので、効率よく鍋が加熱されて調理を行うことができ、無駄な電力を消費することもない。   When cooking with a large pan, the pan is placed on the large pan position display unit 10, and the large-diameter heating coil 2 is energized for cooking. Also in this case, the magnetic flux hardly leaks from the large-diameter heating coil 2 into the air, so that the pan can be efficiently heated and cooked, and useless power is not consumed.

図３は本実施の形態に係る電磁調理器の他の例の天板の平面図である。
本例は、筐体１内に大径の加熱コイル２を２個、小径の加熱コイル３を１個、計３個の加熱コイル２，３を設けたもので、２個の大径の加熱コイル２を操作部側（前面側）に、小径の加熱コイル３を操作部の奥側に配設したものである。そして、天板８には、図３に示すように、操作部側に大径の加熱コイル２に対応して２個の大きい鍋位置表示部１０ａ，１０ｂが設けられ、操作部の奥側に小径の加熱コイル３に対応して小さい鍋位置表示部１１が設けられている。 FIG. 3 is a plan view of a top plate of another example of the electromagnetic cooking device according to the present embodiment.
In this example, two large-diameter heating coils 2 and one small-diameter heating coil 3 are provided in the housing 1, and a total of three heating coils 2 and 3 are provided. The coil 2 is disposed on the operation unit side (front side), and the small-diameter heating coil 3 is disposed on the back side of the operation unit. And as shown in FIG. 3, the two large pan position display parts 10a and 10b are provided in the top plate 8 corresponding to the large diameter heating coil 2 on the operation part side, and the back of the operation part is provided. A small pan position display unit 11 is provided corresponding to the small diameter heating coil 3.

上記の説明では、筐体１内に大径の加熱コイル２を２個、小径の加熱コイル３を１個、計３個の加熱コイルを設けた場合を示したが、４個以上の加熱コイルを設けてもよく、あるいは、大径、中径、小径とそれぞれ径の異なる加熱コイルを設け、これらの加熱コイルに対応して天板８に鍋位置表示部を設けてもよい。   In the above description, the case where two large heating coils 2 and one small diameter heating coil 3 are provided in the casing 1, that is, a total of three heating coils is shown, but four or more heating coils are provided. Alternatively, a heating coil having a large diameter, a medium diameter, and a small diameter may be provided, and a pan position display unit may be provided on the top plate 8 corresponding to these heating coils.

図４は本実施の形態に係る電磁調理器のさらに他の例の天板の平面図である。
本例は、大小２個の加熱コイルを、操作部側から奥行方向に設けたものである。この場合、大径の加熱コイル２を操作部側に、小径の加熱コイル３を操作部の奥行側に設ける方が使い勝手がよい。そして、天板８には、図４に示すように、大径の加熱コイル２に対応して大きい鍋位置表示部１０が、小径の加熱コイル３に対応して小さい鍋位置表示部１１が設けられている。なお、図示してないが、冷却ファンは発熱量の大きい大径の加熱コイル２の近傍に設けることが望ましく、これにより発熱部を効率よく冷却することができる。 FIG. 4 is a plan view of a top plate of still another example of the electromagnetic cooking device according to the present embodiment.
In this example, two large and small heating coils are provided in the depth direction from the operation unit side. In this case, it is more convenient to provide the large-diameter heating coil 2 on the operation unit side and the small-diameter heating coil 3 on the depth side of the operation unit. As shown in FIG. 4, the top plate 8 is provided with a large pan position display unit 10 corresponding to the large diameter heating coil 2 and a small pan position display unit 11 corresponding to the small diameter heating coil 3. It has been. Although not shown, it is desirable that the cooling fan be provided in the vicinity of the large-diameter heating coil 2 that generates a large amount of heat, so that the heat generating portion can be efficiently cooled.

上記の説明では、大径の加熱コイル２に例えば２ＫＷ、小径の加熱コイル３に例えば１ＫＷのように、加熱コイルの径に対応して駆動回路４，５から高周波電力を供給する場合を示したが、小径の加熱コイル３を駆動する駆動回路５の周波数を、他の加熱コイル２を駆動する駆動回路４の周波数より高くしてもよい。   In the above description, the case where high frequency power is supplied from the drive circuits 4 and 5 corresponding to the diameter of the heating coil, such as 2 kW for the large diameter heating coil 2 and 1 kW for the small diameter heating coil 3, for example, has been shown. However, the frequency of the drive circuit 5 that drives the small diameter heating coil 3 may be higher than the frequency of the drive circuit 4 that drives the other heating coils 2.

駆動回路から供給する高周波電力の周波数を高くすることで、鉄以外の金属、例えばアルミ鍋を加熱することができるが、アルミ鍋を加熱した場合、加熱コイルに入力する高周波電力が大きいと、電磁誘導による反発作用でアルミ鍋が浮いてしまうことがある。これを防止するために、小径の加熱コイルを用い、供給する高周波電力の周波数を高くすることで、加熱コイルに少ない高周波電力を供給することによりアルミ鍋を効率よく加熱することができる。   By increasing the frequency of the high-frequency power supplied from the drive circuit, metals other than iron, such as aluminum pans, can be heated, but when the aluminum pan is heated, if the high-frequency power input to the heating coil is large, electromagnetic The aluminum pan may float due to the repulsive action of induction. In order to prevent this, the aluminum pan can be efficiently heated by supplying a small amount of high frequency power to the heating coil by using a small diameter heating coil and increasing the frequency of the high frequency power to be supplied.

［実施の形態２］
図５は本発明の実施の形態２に係る電磁調理器の要部の断面図及び天板の平面図である。なお、実施の形態１と同じ部分にはこれと同じ符号を付し、説明を省略する。
本実施の形態は、駆動回路４，５を囲んで風路１２を設け、その一方の側に設けた吸気口１３を冷却ファン９に接続すると共に、他方の側に設けた排気口１４を天板８に設けた排気穴１７に接続したものである。なお、風路１２の上面板には、大径の加熱コイル２と小径の加熱コイル３に対応してそれぞれ開口部１５，１６が設けられている。 [Embodiment 2]
FIG. 5 is a cross-sectional view of a main part of the electromagnetic cooking device according to Embodiment 2 of the present invention and a plan view of the top plate. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the present embodiment, an air passage 12 is provided so as to surround the drive circuits 4 and 5, an intake port 13 provided on one side thereof is connected to the cooling fan 9, and an exhaust port 14 provided on the other side is connected to the ceiling. It is connected to an exhaust hole 17 provided in the plate 8. The upper surface plate of the air passage 12 is provided with openings 15 and 16 corresponding to the large diameter heating coil 2 and the small diameter heating coil 3, respectively.

本実施の形態の作用、効果は実施の形態１の場合とほぼ同様であるが、さらに、本実施の形態においては、発熱量の大きい駆動回路４，５を囲んで風路２を設け、冷却ファン９による冷却風により駆動回路４，５を冷却すると共に、一部の冷却風を開口部１５，１６から加熱コイル２，３側に導入してこれらを冷却するようにしたので、発熱部を効率よく冷却することができる。   Although the operation and effect of the present embodiment are almost the same as those of the first embodiment, in this embodiment, the air passage 2 is provided so as to surround the drive circuits 4 and 5 that generate a large amount of heat, and cooling is performed. The drive circuits 4 and 5 are cooled by the cooling air from the fan 9 and a part of the cooling air is introduced into the heating coils 2 and 3 from the openings 15 and 16 so as to cool them. It can be cooled efficiently.

［実施の形態３］
図６は本発明の実施の形態３に係る電磁調理器の要部の断面図、天板の平面図及び操作部の説明図である。なお、実施の形態１と同じ部分にはこれと同じ符号を付し、説明を省略する。 [Embodiment 3]
FIG. 6 is a cross-sectional view of a main part of the electromagnetic cooking device according to Embodiment 3 of the present invention, a plan view of the top plate, and an explanatory view of the operation unit. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

本実施の形態は、大径の加熱コイル２と小径の加熱コイル３に対応して、駆動回路４，５の出力電力を長さで表示する複数の点灯片を並設した点灯片列又はブロックからなる第１の表示部１８及び第２の表示部１９を、天板８の鍋位置表示部１０，１１の近傍にそれぞれ設け、また、操作板２０に、大径の加熱コイル２と小径の加熱コイル３に供給する駆動回路４，５の出力電力を調整する回転式又はスライド式の第１の操作部２１及び第２の操作部２２をそれぞれ設けたものである。   In the present embodiment, a lighting strip row or block in which a plurality of lighting strips for displaying the output power of the drive circuits 4 and 5 in length corresponding to the large heating coil 2 and the small heating coil 3 are arranged in parallel. The first display unit 18 and the second display unit 19 are respectively provided in the vicinity of the pan position display units 10 and 11 of the top plate 8, and the operation plate 20 is provided with a large-diameter heating coil 2 and a small-diameter display unit. A rotary or slide type first operation unit 21 and a second operation unit 22 for adjusting the output power of the drive circuits 4 and 5 supplied to the heating coil 3 are provided.

そして、駆動回路４の最大出力時における第１の表示部１８の長さＬ1を、駆動回路５の最大出力時における第２の表示部１９の長さＬ2より長くなるように構成すると共に、第１の操作部２１と第２の操作部２２を同じ回転角度又はスライド量だけ操作（以下、同一操作量という）した場合に、第１の表示部１８の表示長さと、第２の表示部１９の表示長さとの比を、Ｌ1対Ｌ2としたものである。 The length L 1 of the first display unit 18 at the maximum output of the drive circuit 4 is configured to be longer than the length L 2 of the second display unit 19 at the maximum output of the drive circuit 5. When the first operation unit 21 and the second operation unit 22 are operated by the same rotation angle or slide amount (hereinafter referred to as the same operation amount), the display length of the first display unit 18 and the second display The ratio with the display length of the part 19 is L 1 to L 2 .

本実施の形態においては、第１の操作部２１と第２の操作部２２を同一操作量操作した場合、表示される第１の表示部１８の表示長さと、第２の表示部１９の表示長さとの比をＬ1対Ｌ2とすることにより、大径の加熱コイル２と小径の加熱コイル３を共に最大出力とした場合の、第１の操作部２１と第２の操作部２２との操作量を同一にすることができる。このため、第１の操作部２１と第２の操作部２２に同一の部品を用いることができ、部品の共通化によるコストの低減がはかれる。また、製造時に第１の操作部２１と第２の操作部２２を間違えて取付けることがなくなるので、歩留まりがよく生産性を向上することができる。 In the present embodiment, when the first operation unit 21 and the second operation unit 22 are operated with the same operation amount, the display length of the first display unit 18 displayed and the display of the second display unit 19 are displayed. By setting the ratio of length to L 1 to L 2 , the first operation unit 21 and the second operation unit 22 when the large-diameter heating coil 2 and the small-diameter heating coil 3 are both set to the maximum output, The operation amount can be made the same. For this reason, the same components can be used for the first operation unit 21 and the second operation unit 22, and the cost can be reduced by sharing the components. In addition, since the first operation unit 21 and the second operation unit 22 are not mistakenly attached at the time of manufacture, the yield is good and the productivity can be improved.

本発明の実施の形態１に係る電磁調理器の要部の断面図である。It is sectional drawing of the principal part of the electromagnetic cooker which concerns on Embodiment 1 of this invention. 図１の天板の平面図及び天板と加熱コイルとの関係を示す断面図である。It is sectional drawing which shows the top view of the top plate of FIG. 1, and the relationship between a top plate and a heating coil. 実施の形態１の他の例の天板の平面図である。6 is a plan view of a top plate of another example of Embodiment 1. FIG. 実施の形態１のさらに他の例の天板の平面図である。6 is a plan view of a top plate of still another example of the first embodiment. FIG. 本発明の実施の形態２に係る電磁調理器の要部の断面図及び天板の平面図である。It is sectional drawing of the principal part of the electromagnetic cooker which concerns on Embodiment 2 of this invention, and the top view of a top plate. 本発明の実施の形態３に係る電磁調理器の要部の断面図、天板の平面図及び操作部の説明図である。It is sectional drawing of the principal part of the electromagnetic cooker which concerns on Embodiment 3 of this invention, the top view of a top plate, and explanatory drawing of an operation part.

符号の説明Explanation of symbols

１ 筐体、２ 大径の加熱コイル、３ 小径の加熱コイル、４，５ 駆動回路、８ 天板、９ 冷却ファン、１０，１１ 鍋位置表示部、１２ 風路、１８ 第１の表示部、１９ 第２の表示部、２１ 第１の操作部、２２ 第２の操作部。   DESCRIPTION OF SYMBOLS 1 Housing | casing, 2 large diameter heating coil, 3 small diameter heating coil, 4,5 drive circuit, 8 Top plate, 9 Cooling fan 10, 11 Pan position display part, 12 Air path, 18 1st display part, 19 2nd display part, 21 1st operation part, 22 2nd operation part.

Claims (1)

内部に径の大きい誘導加熱コイルと径の小さい誘導加熱コイル、これら誘導加熱コイルをそれぞれ駆動する駆動回路、冷却ファン等が収容された筐体と、該筐体の上部開口部に取付けられ前記誘導加熱コイルの直上にそれぞれ鍋位置表示部が設けられた天板とを備え、
複数の点灯片を並設してなり、前記鍋位置表示部の近傍に設けられて前記径の大きい誘導加熱コイルと径の小さい誘導加熱コイルの出力電力をそれぞれ長さで表示する第１の表示部及び第２の表示部と、前記径の大きい誘導加熱コイルと径の小さい誘導加熱コイルに供給する駆動回路の出力電力をそれぞれ調整すると共に、前記出力電力に対応して前記第１、第２の表示部の点灯片を点灯させる第１の操作部及び第２の操作部とを有し、
最大出力時における前記第１の表示部の表示長さＬ1を、最大出力時における前記第２の表示部の表示長さＬ2より長く構成すると共に、前記第１の操作部と第２の操作部を同一操作量操作したときに表示される前記第１の表示部の表示長さと、前記第２の表示部の表示長さとの比をＬ1対Ｌ2としたことを特徴とする電磁誘導加熱調理器。 A large-diameter induction heating coil and a small-diameter induction heating coil, a drive circuit for driving each induction heating coil, a cooling fan, and the like are housed in the upper opening of the case. With a top plate provided with a pan position indicator on each of the heating coils,
A plurality of lighting pieces are arranged side by side, and are provided in the vicinity of the pan position display unit, and display the output power of the induction heating coil having a large diameter and the induction heating coil having a small diameter in length. Output power of the drive circuit supplied to the large-diameter induction heating coil and the small-diameter induction heating coil and the small-diameter induction heating coil , respectively , and the first and second corresponding to the output power A first operation unit and a second operation unit for lighting the lighting piece of the display unit ,
The display length L 1 of the first display unit at the time of maximum output is configured to be longer than the display length L 2 of the second display unit at the time of maximum output, and the first operation unit and the second display unit L 2 are configured. The electromagnetic wave characterized in that the ratio of the display length of the first display unit and the display length of the second display unit displayed when the operation unit is operated with the same operation amount is L 1 to L 2. Induction heating cooker.
JP2006281844A 2006-10-16 2006-10-16 Electromagnetic induction heating cooker Expired - Lifetime JP4455565B2 (en)

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