JP2005122964A - Induction heating cooker - Google Patents

Induction heating cooker Download PDF

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JP2005122964A
JP2005122964A JP2003354843A JP2003354843A JP2005122964A JP 2005122964 A JP2005122964 A JP 2005122964A JP 2003354843 A JP2003354843 A JP 2003354843A JP 2003354843 A JP2003354843 A JP 2003354843A JP 2005122964 A JP2005122964 A JP 2005122964A
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heating coil
gap
holding member
top plate
heating
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JP4148093B2 (en
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Naoji Tanno
直司 丹野
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an induction heating cooker having a constitution which is easy for adjusting the gap between the top plate and the heating coil. <P>SOLUTION: The heating coil 2 is mounted on an insulating plate 3 mounted on a heating coil holding member 5. Since it has a configuration maintaining the gap between the top plate 1 and the heating coil 2 by a prescribed distance by changing the thickness of the insulating plate 3, the gap can be easily adjusted according to design of a heating coil unit. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、トッププレートと加熱コイルとのギャップを容易に調整可能な誘導加熱調理器に関するものである。   The present invention relates to an induction heating cooker that can easily adjust a gap between a top plate and a heating coil.

従来、この種の誘導加熱調理器は、加熱コイル保持部材の上に加熱コイルを直に載置していた（例えば、特許文献１参照）。   Conventionally, this type of induction heating cooker has mounted the heating coil directly on the heating coil holding member (see, for example, Patent Document 1).

図５は、特許文献１に記載された誘導加熱調理器を示すもので、図に示すように、被加熱調理器具である鍋などを載置するトッププレート１１があり、そのトッププレート１１の下には、加熱コイル１２が加熱コイル保持部材１４の上に載置され、加熱コイル１２とトッププレート１１とのギャップはコイルホルダー１３により、規制されている。
特開平９−３１２１９５号公報 FIG. 5 shows an induction heating cooker described in Patent Document 1, and as shown in the figure, there is a top plate 11 on which a cooking pot to be heated is placed, and under the top plate 11. The heating coil 12 is placed on the heating coil holding member 14, and the gap between the heating coil 12 and the top plate 11 is regulated by the coil holder 13.
Japanese Patent Laid-Open No. 9-312195

しかしながら、上記従来の構成において、加熱コイル保持部材１４を共用するとトッププレート１１と加熱コイル１２とのギャップを変更することができず、筐体に応じた加熱コイルユニットの設計ができないという課題を有していた。   However, in the above-described conventional configuration, if the heating coil holding member 14 is shared, the gap between the top plate 11 and the heating coil 12 cannot be changed, and there is a problem that the heating coil unit cannot be designed according to the housing. Was.

本発明は、前記従来の課題を解決するもので、加熱コイル保持部材を共用しても、トッププレートと加熱コイルとのギャップを容易に調整可能な構成とした誘導加熱調理器を提供することを目的とする。   The present invention solves the above-described conventional problems, and provides an induction heating cooker configured to easily adjust the gap between the top plate and the heating coil even if the heating coil holding member is shared. Objective.

前記従来の課題を解決するために、本発明の誘導加熱調理器は、調理容器を載置するトッププレートと、トッププレートの下部に配設され調理容器を加熱する加熱コイルと、加熱コイル下方に磁性体を保持するとともに、加熱コイルを保持する加熱コイル保持部材とを有し、加熱コイル保持部材に絶縁板を載置し、絶縁板の厚みでトッププレートと加熱コイルとのギャップを所定の距離に維持される構成としたものである。   In order to solve the above-mentioned conventional problems, an induction heating cooker according to the present invention includes a top plate on which a cooking container is placed, a heating coil that is disposed under the top plate and heats the cooking container, and a heating coil below the heating coil. A heating coil holding member for holding the magnetic body and holding the heating coil. An insulating plate is placed on the heating coil holding member, and the gap between the top plate and the heating coil is set at a predetermined distance by the thickness of the insulating plate. It is set as the structure maintained by this.

これによって、加熱コイルユニットの設計に応じて、絶縁板の厚みを変えるだけで、ギャップを所定の距離に容易に調整できる作用を有する。   Thus, the gap can be easily adjusted to a predetermined distance by simply changing the thickness of the insulating plate according to the design of the heating coil unit.

本発明の誘導加熱調理器は、加熱コイル保持部材を共用してもトッププレートと加熱コイルとのギャップを容易に調整できるため、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   Since the induction heating cooker of the present invention can easily adjust the gap between the top plate and the heating coil even if the heating coil holding member is shared, it is possible to share a complex part called the heating coil holding member, Speeding up development and reducing costs such as molds.

第１の発明は、調理容器を載置するトッププレートと、前記トッププレートの下部に配設され前記調理容器を加熱する加熱コイルと、前記加熱コイル下方に磁性体を保持するとともに、前記加熱コイルを保持する加熱コイル保持部材とを有し、前記加熱コイル保持部材に絶縁板を載置し、絶縁板の厚みでトッププレートと加熱コイルとのギャップを所定の距離に維持した誘導加熱調理器とすることにより、加熱コイル保持部材を共用してもトッププレートと加熱コイルとのギャップを容易に調整可能とした構成のため、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   The first invention includes a top plate on which a cooking container is placed, a heating coil that is disposed below the top plate and that heats the cooking container, a magnetic body is held below the heating coil, and the heating coil A heating coil holding member that holds the heating coil holding member, an induction plate is mounted on the heating coil holding member, and the gap between the top plate and the heating coil is maintained at a predetermined distance by the thickness of the insulating plate; This makes it possible to easily adjust the gap between the top plate and the heating coil even if the heating coil holding member is shared. Speeding up and cost reduction of dies.

第２の発明は、特に、第１の発明において、加熱コイルと、磁性体と、加熱コイル保持部材と、絶縁板を有する加熱コイルユニットを複数個配設し、前記絶縁板の厚みによりギャップをそれぞれの加熱コイルユニットに応じて所定の距離に維持したことにより、加熱コイルユニットを複数個配設する場合においても、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   According to a second invention, in particular, in the first invention, a plurality of heating coil units having a heating coil, a magnetic body, a heating coil holding member, and an insulating plate are arranged, and a gap is formed depending on the thickness of the insulating plate. By maintaining a predetermined distance according to each heating coil unit, even when multiple heating coil units are installed, it is possible to share a complex part called a heating coil holding member, and the speed of development Cost reduction such as conversion and mold.

第３の発明は、特に、第２の発明において、厚みの異なる加熱コイルを複数個配設したものでも、絶縁板の厚みによりトッププレートと加熱コイルとのギャップをそれぞれの加熱コイルユニットに応じて所定の距離に調整可能であるため、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   According to a third invention, in particular, in the second invention, even if a plurality of heating coils having different thicknesses are provided, the gap between the top plate and the heating coil depends on each heating coil unit depending on the thickness of the insulating plate. Since the distance can be adjusted to a predetermined distance, it is possible to share a complicated component such as a heating coil holding member, thereby speeding up development and reducing costs such as a mold.

第４の発明は、特に、第１〜３のいずれか１つの発明において、絶縁板の枚数によりギャップを所定の距離に維持したことにより、絶縁板の枚数を考慮するだけで、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   According to a fourth aspect of the present invention, in particular, in any one of the first to third aspects, the gap is maintained at a predetermined distance by the number of the insulating plates, so that only the number of the insulating plates is taken into consideration, and the heating coil holding member This makes it possible to share complex parts, which can speed up development and reduce costs such as molds.

第５の発明は、特に、第１〜４のいずれか１つの発明において、絶縁板の載置面の加熱コイル保持部材に複数箇所凸部を設け、前記絶縁板を凸部上に載置し、ギャップを所定の距離に維持したことにより、絶縁板を凸部上に載置するということで、加熱コイル保持部材という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   According to a fifth aspect of the invention, in particular, in any one of the first to fourth aspects, the heating coil holding member on the mounting surface of the insulating plate is provided with a plurality of convex portions, and the insulating plate is placed on the convex portion. By keeping the gap at a predetermined distance, the insulating plate is placed on the convex part, so that it is possible to share a complex part called a heating coil holding member, speeding development The cost can be reduced.

第６の発明は、特に、第１〜５のいずれか１つの発明において、加熱コイル保持部材とトッププレートに挟着された防振キャップの厚みでもギャップを所定の距離に維持したことにより、絶縁板と相俟ってギャップ調整の自由度が広がる。   In particular, the sixth invention is characterized in that, in any one of the first to fifth inventions, the gap is kept at a predetermined distance even with the thickness of the vibration-proof cap sandwiched between the heating coil holding member and the top plate. Combined with the plate, the flexibility of gap adjustment is expanded.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は、本発明の実施の形態１における誘導加熱調理器を示すものである。 (Embodiment 1)
FIG. 1 shows an induction heating cooker according to Embodiment 1 of the present invention.

図に示すように、本実施の形態の誘導加熱調理器においては、調理容器６を載置するトッププレート１と、前記トッププレート１の下部に配設され前記調理容器６を加熱する加熱コイル２と、前記加熱コイル２下方に誘導加熱中に発生する加熱コイル２からの磁束漏れを抑制しているフェライト（磁性体）４を保持するとともに、前記加熱コイル２を保持する加熱コイル保持部材５とを有している。前記加熱コイル保持部材５は、トッププレート１の所定の下方位置に配置されているものである。そして、加熱コイル２はフェライト４上で加熱コイル保持部材５に載置された絶縁板３（例えば、マイカ）の上に載置されており、絶縁板３の厚みでトッププレート１と加熱コイル２とのギャップを所定の距離に維持したものである。   As shown in the figure, in the induction heating cooker according to the present embodiment, a top plate 1 on which a cooking container 6 is placed, and a heating coil 2 that is disposed below the top plate 1 and heats the cooking container 6. And a heating coil holding member 5 that holds the heating coil 2 while holding the ferrite (magnetic material) 4 that suppresses magnetic flux leakage from the heating coil 2 that occurs during induction heating below the heating coil 2. have. The heating coil holding member 5 is disposed at a predetermined lower position of the top plate 1. The heating coil 2 is placed on an insulating plate 3 (for example, mica) placed on the heating coil holding member 5 on the ferrite 4, and the top plate 1 and the heating coil 2 have the thickness of the insulating plate 3. The gap is maintained at a predetermined distance.

このように、絶縁板３の厚みによって、トッププレート１と加熱コイル２とのギャップを所定の距離に維持されることにより、加熱コイル保持部材５を他の誘導加熱調理器と共用してもトッププレート１と加熱コイル２とのギャップを容易に調整可能とした構成のため、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   In this way, the gap between the top plate 1 and the heating coil 2 is maintained at a predetermined distance depending on the thickness of the insulating plate 3, so that the top even if the heating coil holding member 5 is shared with other induction heating cookers. Since the gap between the plate 1 and the heating coil 2 can be easily adjusted, a complicated component called the heating coil holding member 5 can be shared, speeding up development and reducing costs such as molds. Can be planned.

また、絶縁板３を耐熱性の高いシートの部材で構成すれば、信頼性を向上させることができ、加熱コイル保持部材５の材料の耐熱グレードを低くしコストダウンを図ることができる。   Further, if the insulating plate 3 is composed of a sheet member having high heat resistance, the reliability can be improved, and the heat resistance grade of the material of the heating coil holding member 5 can be lowered to reduce the cost.

また、加熱コイル２と、フェライト４と、加熱コイル保持部材５と、絶縁板３を有する加熱コイルユニットを同一器体に複数個配設し、前記絶縁板３の厚みによりギャップをそれぞれの加熱コイルユニットに応じて所定の距離に維持することで、加熱コイルユニットを複数個配設する場合においても、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   In addition, a plurality of heating coil units each including a heating coil 2, a ferrite 4, a heating coil holding member 5, and an insulating plate 3 are arranged in the same container, and a gap is determined depending on the thickness of the insulating plate 3. By maintaining a predetermined distance according to the unit, even when a plurality of heating coil units are provided, a complicated component such as the heating coil holding member 5 can be shared. Costs such as molds can be reduced.

また、厚みの異なる加熱コイル２を複数個配設したものであっても、絶縁板の厚みによりトッププレートと加熱コイルとのギャップをそれぞれの加熱コイルユニットに応じて所定の距離に調整可能であるため、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。なお、加熱コイル２を固定保持するコイルホルダーを用いる場合であっても、絶縁板の厚みを変えることで、共用化しコストダウンが図れる。   Further, even if a plurality of heating coils 2 having different thicknesses are provided, the gap between the top plate and the heating coil can be adjusted to a predetermined distance according to each heating coil unit depending on the thickness of the insulating plate. Therefore, a complicated component such as the heating coil holding member 5 can be shared, and the development speed can be reduced and the cost of the mold can be reduced. Even when a coil holder that fixes and holds the heating coil 2 is used, the cost can be reduced by changing the thickness of the insulating plate.

（実施の形態２）
図２は、本発明の実施の形態２における誘導加熱調理器を示すものである。基本構成は、実施の形態１と同じであるため異なる点を中心に説明する。 (Embodiment 2)
FIG. 2 shows an induction heating cooker according to Embodiment 2 of the present invention. Since the basic configuration is the same as that of the first embodiment, different points will be mainly described.

本実施の形態においては、加熱コイル保持部材５の上に絶縁板３を複数枚載置し、その上に加熱コイル２を載置した構成としたものである。   In the present embodiment, a plurality of insulating plates 3 are placed on the heating coil holding member 5 and the heating coil 2 is placed thereon.

この絶縁板３の枚数によって、トッププレート１と加熱コイル２とのギャップを所定の距離に維持されることにより、加熱コイル保持部材５を共用してもトッププレート１と加熱コイル２とのギャップを容易に調整可能とした構成のため、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。また、絶縁板の種類も１つで管理でき、組立性・サービス性も向上できる。   By maintaining the gap between the top plate 1 and the heating coil 2 at a predetermined distance depending on the number of the insulating plates 3, the gap between the top plate 1 and the heating coil 2 can be maintained even if the heating coil holding member 5 is shared. Because of the configuration that can be easily adjusted, it is possible to share a complex part such as the heating coil holding member 5, speeding up development and reducing costs such as molds. In addition, the type of insulating plate can be managed by one, and the assembly and serviceability can be improved.

（実施の形態３）
図３は、本発明の実施の形態３における誘導加熱調理器を示すものである。基本構成は、実施の形態１と同じであるため異なる点を中心に説明する。 (Embodiment 3)
FIG. 3 shows an induction heating cooker according to Embodiment 3 of the present invention. Since the basic configuration is the same as that of the first embodiment, different points will be mainly described.

本実施の形態においては、絶縁板３の載置面の加熱コイル保持部材５に複数箇所の凸部５ａを設け、図３の（ｂ）状態から図４の（ｂ）状態になるよう絶縁板３を回転させることで凸部５ａ上に載置する構成としたものである。   In the present embodiment, the heating coil holding member 5 on the mounting surface of the insulating plate 3 is provided with a plurality of convex portions 5a so that the state shown in FIG. 3B is changed to the state shown in FIG. 4B. 3 is rotated and placed on the convex portion 5a.

この凸部５ａの段差でトッププレート１と加熱コイル２とのギャップを所定の距離に維持されることにより、加熱コイル保持部材５を共用してもトッププレート１と加熱コイル２とのギャップを容易に調整可能とした構成のため、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   By maintaining the gap between the top plate 1 and the heating coil 2 at a predetermined distance by the step of the convex portion 5a, the gap between the top plate 1 and the heating coil 2 can be easily achieved even if the heating coil holding member 5 is shared. Therefore, a complicated component such as the heating coil holding member 5 can be shared, and the development speed can be reduced and the cost of the mold can be reduced.

なお、絶縁板３は回転させるとしたが、表裏を返して取り付ける構成としてもよい。すなわち、絶縁板３を裏返すことにより、絶縁板３が凸部５ａ上に載置される形状となっているものである。   Although the insulating plate 3 is rotated, it may be configured to be mounted with the front and back turned upside down. That is, the insulating plate 3 is turned over so that the insulating plate 3 is placed on the convex portion 5a.

（実施の形態４）
図５は、本発明の実施の形態４における誘導加熱調理器を示すものである。基本構成は、実施の形態１と同じであるため異なる点を中心に説明する。 (Embodiment 4)
FIG. 5 shows an induction heating cooker according to Embodiment 4 of the present invention. Since the basic configuration is the same as that of the first embodiment, different points will be mainly described.

本実施の形態においては、加熱コイル保持部材５はトッププレート１と当接する面に防振用のキャップ７を装着している。すなわち、加熱コイル保持部材５とトッププレート１に挟着されたキャップ７の厚みでもトッププレート１と加熱コイル２とのギャップを調整可能としたものである。   In the present embodiment, the heating coil holding member 5 is provided with a vibration-proof cap 7 on the surface that contacts the top plate 1. That is, the gap between the top plate 1 and the heating coil 2 can be adjusted by the thickness of the cap 7 sandwiched between the heating coil holding member 5 and the top plate 1.

このように、絶縁板３と共に、加熱コイル保持部材５とトッププレート１に挟着されたキャップ７の厚みでもトッププレート１と加熱コイル２とのギャップを容易に調整可能とした構成のため、ギャップ調整の自由度が広がり、加熱コイル保持部材５という複雑な部品の共用化をすることができ、開発のスピード化・金型などのコストダウンを図ることができる。   As described above, the gap between the top plate 1 and the heating coil 2 can be easily adjusted even with the thickness of the cap 7 sandwiched between the heating coil holding member 5 and the top plate 1 together with the insulating plate 3. The degree of freedom of adjustment is widened, and a complex part such as the heating coil holding member 5 can be shared, thereby speeding up development and reducing costs such as molds.

以上のように、本発明にかかる誘導加熱調理器は、加熱コイルとトッププレートのギャップを自由に調整可能となり、誘導加熱をする全ての機器に適用できる。   As described above, the induction cooking device according to the present invention can freely adjust the gap between the heating coil and the top plate, and can be applied to all devices that perform induction heating.

（ａ）本発明の実施の形態１における加熱コイルユニットの正面図（ｂ）（ａ）のＡ−Ａ線による断面図(A) Front view of heating coil unit according to Embodiment 1 of the present invention (b) Sectional view taken along line AA of (a) 本発明の実施の形態２における加熱コイルユニットの一部を示す断面図Sectional drawing which shows a part of heating coil unit in Embodiment 2 of this invention. （ａ）本発明の実施の形態３における加熱コイルユニットの絶縁板調整前の一部を示す正面図（ｂ）（ａ）のＢ−Ｂ線による断面図(A) Front view which shows a part before insulation board adjustment of the heating coil unit in Embodiment 3 of this invention (b) Sectional drawing by the BB line of (a) （ａ）同実施の形態３における加熱コイルユニットの絶縁板調整後の一部を示す正面図（ｂ）（ａ）のＣ−Ｃ線による断面図(A) Front view which shows a part after insulation board adjustment of the heating coil unit in Embodiment 3 (b) Sectional drawing by CC line of (a) （ａ）本発明の実施の形態４における加熱コイルユニットの正面図（ｂ）（ａ）の断面図(A) Front view of heating coil unit in Embodiment 4 of the present invention (b) Cross section of (a) 従来例を示す誘導加熱調理器の加熱コイルユニットの断面図Sectional drawing of the heating coil unit of the induction heating cooking appliance which shows a prior art example

符号の説明Explanation of symbols

１ トッププレート
２ 加熱コイル
３ 絶縁板
４ フェライト
５ 加熱コイル保持部材
５ａ 凸部
６ 調理容器
７ キャップ DESCRIPTION OF SYMBOLS 1 Top plate 2 Heating coil 3 Insulating plate 4 Ferrite 5 Heating coil holding member 5a Convex part 6 Cooking container 7 Cap

Claims (6)

調理容器を載置するトッププレートと、前記トッププレートの下部に配設され前記調理容器を加熱する加熱コイルと、前記加熱コイル下方に磁性体を保持するとともに、前記加熱コイルを保持する加熱コイル保持部材とを有し、前記加熱コイル保持部材に絶縁板を載置し、絶縁板の厚みでトッププレートと加熱コイルとのギャップを所定の距離に維持した誘導加熱調理器。 A top plate for placing the cooking vessel, a heating coil disposed under the top plate for heating the cooking vessel, and a heating coil holding for holding the heating coil while holding the magnetic body below the heating coil An induction heating cooker having an insulating plate placed on the heating coil holding member and maintaining the gap between the top plate and the heating coil at a predetermined distance by the thickness of the insulating plate. 加熱コイルと、磁性体と、加熱コイル保持部材と、絶縁板を有する加熱コイルユニットを複数個配設し、前記絶縁板の厚みによりギャップをそれぞれの加熱コイルユニットに応じて所定の距離に維持した請求項１に記載の誘導加熱調理器。 A plurality of heating coil units having a heating coil, a magnetic body, a heating coil holding member, and an insulating plate are disposed, and the gap is maintained at a predetermined distance according to each heating coil unit by the thickness of the insulating plate. The induction heating cooker according to claim 1. 厚みの異なる加熱コイルを複数個配設した請求項２に記載の誘導加熱調理器。 The induction heating cooker according to claim 2, wherein a plurality of heating coils having different thicknesses are arranged. 絶縁板の枚数によりギャップを所定の距離に維持した請求項１〜３のいずれか１項に記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 3, wherein the gap is maintained at a predetermined distance by the number of insulating plates. 絶縁板の載置面の加熱コイル保持部材に複数箇所凸部を設け、前記絶縁板を凸部上に載置し、ギャップを所定の距離に維持した請求項１〜４のいずれか１項に記載の誘導加熱調理器。 The heating coil holding member on the mounting surface of the insulating plate is provided with a plurality of convex portions, the insulating plate is mounted on the convex portion, and the gap is maintained at a predetermined distance. The induction heating cooker described. 加熱コイル保持部材とトッププレートに挟着された防振キャップの厚みでもギャップを所定の距離に維持した請求項１〜５のいずれか１項に記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 5, wherein the gap is maintained at a predetermined distance even with the thickness of the vibration-proof cap sandwiched between the heating coil holding member and the top plate.
JP2003354843A 2003-10-15 2003-10-15 Induction heating cooker Expired - Fee Related JP4148093B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009059592A (en) * 2007-08-31 2009-03-19 Panasonic Corp Induction heating cooking device
JP2011014343A (en) * 2009-07-01 2011-01-20 Panasonic Corp Induction heating cooker
WO2012137481A1 (en) * 2011-04-08 2012-10-11 パナソニック株式会社 Induction heating cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009059592A (en) * 2007-08-31 2009-03-19 Panasonic Corp Induction heating cooking device
JP2011014343A (en) * 2009-07-01 2011-01-20 Panasonic Corp Induction heating cooker
WO2012137481A1 (en) * 2011-04-08 2012-10-11 パナソニック株式会社 Induction heating cooker

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