JP4110185B2 - Induction heating cooker - Google Patents

Induction heating cooker Download PDF

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JP4110185B2
JP4110185B2 JP2006287089A JP2006287089A JP4110185B2 JP 4110185 B2 JP4110185 B2 JP 4110185B2 JP 2006287089 A JP2006287089 A JP 2006287089A JP 2006287089 A JP2006287089 A JP 2006287089A JP 4110185 B2 JP4110185 B2 JP 4110185B2
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cooling
output control
heating means
control board
case
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JP2007019042A (en
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充 木村
博 大友
健治 服部
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Hitachi Appliances Inc
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Description

本発明は、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.

従来の誘導加熱調理器は、主な加熱手段が加熱コイルであり、これによって発生する磁束により、絶縁板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ものである。他の加熱手段としてラジエントヒータ等を一部に使用しているものがある。この調理器は、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、熱効率も良好である。   In the conventional induction heating cooker, the main heating means is a heating coil, and the magnetic flux generated thereby generates an eddy current in a heated object such as an iron pan placed on an insulating plate, and the heated object. Is to heat. Some other heating means use a radiant heater or the like. This cooker has less heat radiation to the object other than the object to be heated and has good thermal efficiency as compared to a cooker of combustion system such as gas.

構成面では、本体の上面に被加熱物を載置する絶縁板と、この絶縁板の下方に加熱手段や出力制御基板等と、これらを冷却する冷却ファンを設けており、排気の方向は本体後部より上方向へ向かう構成のものが一般的である。   In terms of configuration, an insulating plate on which an object to be heated is placed on the upper surface of the main body, a heating means, an output control board, etc., and a cooling fan for cooling them are provided below the insulating plate, and the direction of exhaust is the main body Generally, the configuration is directed upward from the rear.

このような従来例として、特許文献１（特開２００１−１９６１５３号公報）や特許文献２（特開２００１−１７６６５１号公報）に示すものがある。   As such conventional examples, there are those shown in Patent Document 1 (Japanese Patent Laid-Open No. 2001-196153) and Patent Document 2 (Japanese Patent Laid-Open No. 2001-176651).

この特許文献１の例を、図５および図６を用いて説明する。図５は従来例の誘導加熱調理器の破断平面図、図６は同じく側面断面図である。   The example of this patent document 1 is demonstrated using FIG. 5 and FIG. FIG. 5 is a cutaway plan view of a conventional induction heating cooker, and FIG. 6 is a side sectional view.

図において、本体１の上面に被加熱物（図示せず）を載置する絶縁板２と、この絶縁板２の下方に複数の加熱手段９，１０及び二つの出力制御基板１１と、これらを冷却する冷却ファン１２と、本体１後部右側に上方に向けて開口された吸気口５と、本体１後部左側に上方に向けて開口された排気口６と、本体１内部に吸気口５から冷却ファン１２に至る吸気ダクト１８とを設けている。   In the figure, an insulating plate 2 for placing an object to be heated (not shown) on the upper surface of the main body 1, a plurality of heating means 9, 10 and two output control boards 11 below the insulating plate 2, A cooling fan 12 for cooling, an intake port 5 opened upward on the right side of the rear portion of the main body 1, an exhaust port 6 opened upward on the left side of the rear portion of the main body 1, and cooling inside the main body 1 from the intake port 5 An intake duct 18 reaching the fan 12 is provided.

そして、上側の出力制御基板１１を覆うように基板カバー１４を設けて、基板保持台
１７と基板カバー１４とで通風路を形成し、通風路の出口側には冷却風の偏向板となる操作部後面壁１９を備え、左の加熱手段９の後端より前の位置に主な通気口となる第一の開口１５を、右側に従となる第二の開口１６を設けている。 Then, a substrate cover 14 is provided so as to cover the upper output control board 11, an air passage is formed by the substrate holding base 17 and the substrate cover 14, and an operation to be a cooling air deflecting plate on the outlet side of the air passage. A rear wall 19 is provided, and a first opening 15 serving as a main vent is provided at a position before the rear end of the left heating means 9, and a second opening 16 following the right side is provided.

以上の構成において、動作を説明する。   The operation of the above configuration will be described.

冷却ファン１２によって吸気口５から吸込まれた外気は、吸気ダクト１８を通って冷却ファン１２に至り、さらに、基板カバー１４および基板保持台１７によって形成された通風路の中を出力制御基板１１を冷却しながら通り、操作部後面壁１９によって流路を変え、その大部分が基板カバー１４の第一の開口１５と第二の開口１６を通り、第一の開口
１５から出た冷却風は左の加熱手段９を、第二の開口１６から出た冷却風は右の加熱手段１０を冷却するように流れ、その後排気口６から本体１の外部に排出される。 The outside air sucked from the air inlet 5 by the cooling fan 12 reaches the cooling fan 12 through the air intake duct 18, and further passes through the output control board 11 in the ventilation path formed by the board cover 14 and the board holder 17. While cooling, the flow path is changed by the operation unit rear wall 19, most of which passes through the first opening 15 and the second opening 16 of the substrate cover 14, and the cooling air from the first opening 15 is left The cooling air coming out of the second opening 16 flows through the heating means 9 to cool the right heating means 10, and is then discharged from the exhaust port 6 to the outside of the main body 1.

ところで、このような誘導加熱調理器は、上記のように主な通風路を吸気ダクト１８，基板カバー１４，基板保持台１７，操作部後面壁１９などの複数の部品で構成している。このため、冷却風のロスがあり、加熱手段９，１０や出力制御基板１１の冷却効率が充分とは言えない。また、組み立てに手間が掛かるという課題がある。   By the way, in such an induction heating cooker, the main ventilation path is constituted by a plurality of parts such as the intake duct 18, the substrate cover 14, the substrate holding table 17, and the operation unit rear wall 19 as described above. For this reason, there is a loss of cooling air, and it cannot be said that the cooling efficiency of the heating means 9 and 10 and the output control board 11 is sufficient. There is also a problem that it takes time to assemble.

特開２００１−１９６１５３号公報JP 2001-196153 A 特開２００１−１７６６５１号公報JP 2001-176651 A

前述したように、従来の誘導加熱調理器においては、加熱手段９，１０や出力制御基板１１の冷却効率が不充分で、組み立て性に問題がある。   As described above, in the conventional induction heating cooker, the cooling efficiency of the heating means 9 and 10 and the output control board 11 is insufficient, and there is a problem in assemblability.

本発明は、前記課題を解決するものであり、冷却風のロスを抑えて、加熱手段や出力制御基板の冷却効率を向上し、かつ、組み立て性も向上してコストを低減することを目的とするものである。   An object of the present invention is to solve the above-described problems, and to reduce the loss of cooling air, improve the cooling efficiency of the heating means and the output control board, and improve the assembling property to reduce the cost. To do.

上記目的を達成するために本発明は、本体の上面に被加熱物を載置する絶縁板を設け、該絶縁板の下方に複数の加熱手段と、出力制御基板と、これらを冷却する冷却ファンとを設け、本体後部に上方へ向けて開口された吸気口と排気口とを設けた誘導加熱調理器において、前記本体内には、グリル加熱部と、該グリル加熱部の側方に配置されると共に、内部に前記出力制御基板と前記冷却ファンとを収納し側面及び上部が塞がれた樹脂製の収納ケースが設置され、該収納ケースは、前記吸気口と対応した前記上部位置に設けられたケース吸気口と、前記収納ケースの前記上部位置に設けられた複数の冷却口とを有し、前記収納ケース内に前記ケース吸気口から前記複数の冷却口に至る風路を形成し、該風路の上流に前記冷却ファンを、下流に前記出力制御基板を配置し、前記出力制御基板は上下方向に積み重ねて配置し、前記ケース吸気口から流入した風は積み重ねて配置した前記出力制御基板を冷却した後前記複数の冷却口から排出されるようにし、前記複数の加熱手段のうち少なくとも一つは前記収納ケースの上方に配置され、少なくとも一つは前記グリル加熱部の上方に配置され、前記複数の冷却口のうち少なくとも一つは前記収納ケースの上方の加熱手段を冷却するように開口し、少なくとも一つは前記グリル加熱部の上方に配置された加熱手段を冷却するように開口したことを特徴とする。

In order to achieve the above object, the present invention provides an insulating plate for placing an object to be heated on the upper surface of a main body, a plurality of heating means, an output control board, and a cooling fan for cooling them under the insulating plate. And an induction heating cooker provided with an intake port and an exhaust port opened upward at the rear part of the main body, the grill heating unit and a side of the grill heating unit are disposed in the main body. In addition, a resin storage case is installed in which the output control board and the cooling fan are stored and the side surface and upper portion are closed, and the storage case is provided at the upper position corresponding to the intake port. a case inlet that is, a plurality of cooling holes provided in said upper position of said housing case, to form a wind path to the plurality of cooling holes from the case inlet in said housing case, The cooling fan is located upstream of the air passage and downstream The serial output control board arranged, the output control board arranged stacked vertically, the wind which has flowed from the casing air inlet is discharged from said plurality of cooling holes after cooling the output control board arranged in a stack And at least one of the plurality of heating means is disposed above the storage case, at least one is disposed above the grill heating unit, and at least one of the plurality of cooling ports is the An opening is provided to cool the heating means above the storage case, and at least one opening is provided to cool the heating means disposed above the grill heating unit .

本発明の誘導加熱調理器によれば、冷却風のロスを抑えて、加熱手段や出力制御基板の冷却効率を向上し、かつ、組み立て性も向上してコストを低減することができる。   According to the induction cooking device of the present invention, the loss of cooling air can be suppressed, the cooling efficiency of the heating means and the output control board can be improved, the assemblability can be improved, and the cost can be reduced.

以下、本発明の一実施例を図面に従って説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の外観斜視図、図２は本発明の内部平面図、図３は本発明の側面断面図、図４は本発明の収納ケースの外観図である。   1 is an external perspective view of the present invention, FIG. 2 is an internal plan view of the present invention, FIG. 3 is a side sectional view of the present invention, and FIG. 4 is an external view of a storage case of the present invention.

図において、１は誘導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)を載置する絶縁板で、本体１の上面に水平に設けられている。   In the figure, 1 is the main body of the induction heating cooker. Reference numeral 2 denotes an insulating 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.

３，４は加熱部で、左右に二つ有り、載置された被加熱物（図示せず）を加熱する部位である。   Reference numerals 3 and 4 denote heating units, which are two on the left and right sides, and are parts for heating the object to be heated (not shown).

５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。６は排気口で、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、吸気口５は本体１後部の右側に、排気口６は左側に配している。   Reference numeral 5 denotes an air inlet, which is an opening opened upward at the rear part of the main body 1. Reference numeral 6 denotes an exhaust port, which is an opening portion opened upward at the rear portion of the main body 1. In this embodiment, the intake port 5 is disposed on the right side of the rear portion of the main body 1 and the exhaust port 6 is disposed on the left side.

７は本体１の前面左部に設けられたグリル加熱部で、中で魚等を焼くものである。８は本体１の前面右部に設けられた操作部で、各加熱の設定，操作を行うものである。   Reference numeral 7 denotes a grill heating unit provided on the left side of the front surface of the main body 1 for grilling fish and the like. Reference numeral 8 denotes an operation unit provided at the right front portion of the main body 1 for setting and operating each heating.

９，１０は加熱手段で、絶縁板２の下方に左右の加熱部３，４に対応して設けられ、加熱コイルの場合には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し、ラジエントヒータの場合には輻射線を発生する。以下、加熱手段９，１０は加熱コイルとして説明する。   9 and 10 are heating means corresponding to the left and right heating parts 3 and 4 below the insulating plate 2, and in the case of a heating coil, a high frequency current flows during induction heating, and the object to be heated (not shown) In the case of a radiant heater, radiation is generated. Hereinafter, the heating means 9 and 10 will be described as heating coils.

１１は出力制御基板で、絶縁板２の下方に設けられ、左右の加熱手段９，１０の出力を主に制御する制御回路を含んだ回路基板である。１２は冷却ファンで、絶縁板２の下方に設けられ、加熱手段９，１０及び出力制御基板１１を冷却するものである。   Reference numeral 11 denotes an output control board which is provided below the insulating plate 2 and includes a control circuit which mainly controls the outputs of the left and right heating means 9 and 10. A cooling fan 12 is provided below the insulating plate 2 and cools the heating means 9 and 10 and the output control board 11.

１３は図４に示すような樹脂製の収納ケースで、本体１内部に設置され、この内部に出力制御基板１１と冷却ファン１２を配置し、この上部に吸気口５と対応するケース吸気口１３ａを備え、この上部に加熱手段９，１０と対応する冷却口１３ｂ，１３ｃを備えている。そしてさらに、収納ケース１３内にケース吸気口１３ａから冷却口１３ｂ，１３ｃに通じる風路１３ｄを形成している。   Reference numeral 13 denotes a resin storage case as shown in FIG. 4, which is installed inside the main body 1, in which the output control board 11 and the cooling fan 12 are arranged, and a case intake port 13 a corresponding to the intake port 5 is disposed in the upper part. And the cooling ports 13b and 13c corresponding to the heating means 9 and 10 are provided on the upper part. Further, an air passage 13d that leads from the case intake port 13a to the cooling ports 13b and 13c is formed in the storage case 13.

ケース吸気口１３ａは上方に開口した開口部で、本体１後部の吸気口５の内側に略嵌合するように構成され、前記冷却ファン１２によってケース１３内部に吸込まれる外気の吸気部分である。   The case air inlet 13a is an opening that opens upward, and is configured to be substantially fitted inside the air inlet 5 at the rear of the main body 1. The case air inlet 13a is an air intake portion that is sucked into the case 13 by the cooling fan 12. .

第一の冷却口１３ｂは、冷却ファン１２からの送風が収納ケース１３より吹出される開口部の一つで、対応する加熱手段９の側部に対向するように、収納ケース１３の上部略中央で切り起こし左方に向けて開口され、ここから吹出された冷却風は左の加熱手段９に吹き付けられる。   The first cooling port 13b is one of the openings from which the air blown from the cooling fan 12 is blown out from the storage case 13, and is substantially at the upper center of the storage case 13 so as to face the side of the corresponding heating means 9. The cooling air blown out and opened to the left is blown to the left heating means 9.

第二の冷却口１３ｃは、冷却ファン１２からの送風が収納ケース１３より吹出される開口部の他の一つで、対応する加熱手段１０の側部に対向するように、収納ケース１３の上部前側で切り起こし後方に向けて開口され、ここから吹出された冷却風は右の加熱手段
１０に吹き付けられる。 The second cooling port 13c is another one of the openings from which the air blown from the cooling fan 12 is blown out from the storage case 13, and is located above the storage case 13 so as to face the side of the corresponding heating means 10. The cooling air blown out from the front side and opened rearward is blown to the right heating means 10.

以上の構成において、その動作を説明する。   The operation of the above configuration will be described.

使用者が被加熱物（図示せず）を絶縁板２の加熱部３または４上に載置し、操作部８を操作し、設定して調理を開始すると、出力制御基板１１は加熱部３または４下方の加熱手段９または１０に制御信号を出力する。この制御信号により、加熱手段９または１０は内部に高周波電流が流れて磁束を発生し、この磁束により被加熱物（図示せず）に渦電流が流れ、被加熱物（図示せず）自身が発熱して加熱される。   When the user places an object to be heated (not shown) on the heating unit 3 or 4 of the insulating plate 2, operates the operation unit 8, sets and starts cooking, the output control board 11 is heated by the heating unit 3. Alternatively, a control signal is output to the heating means 9 or 10 below 4. By this control signal, the heating means 9 or 10 generates a magnetic flux by flowing a high-frequency current therein, and an eddy current flows through the object to be heated (not shown) by this magnetic flux, and the object to be heated (not shown) itself Exothermic and heated.

調理が開始されると、同時に、出力制御基板１１は冷却ファン１２にも制御信号を出力し、この制御信号により、冷却ファン１２は駆動され、ケース吸気口１３ａから外気を吸込み、手前へ送風を行う。   When cooking is started, the output control board 11 outputs a control signal to the cooling fan 12 at the same time, the cooling fan 12 is driven by this control signal, sucks outside air from the case intake port 13a, and blows air forward. Do.

冷却ファン１２による送風は、収納ケース１３内部で冷却風の下流に配置された出力制御基板１１に吹付けられて、これを冷却する。冷却風の一部は出力制御基板１１の一部を冷却し、収納ケース１３の上部略中央で左方に向けて開口された第一の冷却口１３ｂを通り、その方向が略水平左方に変わり、左の加熱手段９の側部に吹付けて冷却し、その後排気口６から本体１の外部に排出される。   The air blown by the cooling fan 12 is blown to the output control board 11 disposed downstream of the cooling air inside the storage case 13 to cool it. A part of the cooling air cools a part of the output control board 11, passes through the first cooling port 13 b opened toward the left at the upper center of the storage case 13, and its direction is substantially horizontal left. Instead, it is cooled by spraying the side of the left heating means 9 and then discharged from the exhaust port 6 to the outside of the main body 1.

冷却風の他の一部は出力制御基板１１を通過し、収納ケース１３の手前壁面に沿って上方に向い、収納ケース１３の上部前側で後方に向けて開口された冷却口１３ｃを通り、その方向が略水平後方に変わり、右の加熱手段１０の側部に吹付けて冷却し、その後排気口６から本体１の外部に排出される。   The other part of the cooling air passes through the output control board 11, faces upward along the front wall surface of the storage case 13, passes through the cooling port 13 c opened rearward on the upper front side of the storage case 13, The direction is changed to a substantially horizontal rear, sprayed to the side of the right heating means 10 and cooled, and then discharged from the exhaust port 6 to the outside of the main body 1.

調理中は上記のように冷却動作が行われ、調理が終了すると、出力制御基板１１は制御信号の出力を停止し、加熱手段９または１０、および冷却ファン１２の運転を停止させる。   During cooking, the cooling operation is performed as described above. When cooking is finished, the output control board 11 stops outputting the control signal, and stops the operation of the heating means 9 or 10 and the cooling fan 12.

上記のように、外気の吸込み部であるケース吸気口１３ａから排出部である冷却口13ｂ，１３ｃに通じる風路１３ｄが、一体構造の樹脂製の収納ケース１３で構成され、かつ、この収納ケース１３内に出力制御基板１１および冷却ファン１２が配置されているため、出力制御基板１１の冷却は、冷却風のロスがなく、冷却効率の高いものである。   As described above, the air passage 13d that leads from the case intake port 13a that is the outside air suction portion to the cooling ports 13b and 13c that are the discharge portion is constituted by the resin storage case 13 having an integral structure, and this storage case. 13, the output control board 11 and the cooling fan 12 are arranged, so that the cooling of the output control board 11 has no cooling air loss and high cooling efficiency.

また、第一，第二の冷却口１３ｂ，１３ｃを対応した加熱手段９，１０の側部に対向して設けることにより、これらから吹出す冷却風の分散が抑えられ集中的に各加熱手段９，１０に吹付けられるので、左右の加熱手段９，１０の冷却は非常に冷却効率の高いものである。   Further, by providing the first and second cooling ports 13b and 13c so as to face the side portions of the corresponding heating means 9 and 10, dispersion of the cooling air blown from these is suppressed, and each heating means 9 is concentrated. , 10, the cooling of the left and right heating means 9, 10 is very high in cooling efficiency.

尚、上記実施例は、加熱手段９，１０を二つとして説明したが、三つ以上の場合は、同様に収納ケース１３に設ける冷却口１３ｂ，１３ｃの数，位置および吹出す方向を各々加熱手段９，１０の数および位置に対応して適宜設ければよい。   In the above embodiment, two heating means 9 and 10 have been described. However, in the case of three or more heating units, the number and position of cooling ports 13b and 13c provided in the storage case 13 are similarly heated. What is necessary is just to provide suitably according to the number and position of the means 9 and 10.

また、以上の説明では、加熱手段９，１０を加熱コイルとして説明したが、これにラジエントヒータ、その他を組み合わせても対応できるものである。   Moreover, although the heating means 9 and 10 were demonstrated as a heating coil in the above description, it can respond also to this, combining a radial heater and others.

本発明の外観斜視図である。1 is an external perspective view of the present invention. 本発明の内部平面図である。It is an internal top view of this invention. 本発明の側面断面図である。It is side surface sectional drawing of this invention. 本発明の収納ケースの外観図である。It is an external view of the storage case of this invention. 従来例の誘導加熱調理器の破断平面図である。It is a fracture | rupture top view of the induction heating cooking appliance of a prior art example. 従来例の誘導加熱調理器の側面断面図である。It is side surface sectional drawing of the induction heating cooking appliance of a prior art example.

符号の説明Explanation of symbols

１ 本体
２ 絶縁板
３，４ 加熱部
５ 吸気口
６ 排気口
７ グリル加熱部
８ 操作部
９，１０ 加熱手段
１１ 出力制御基板
１２ 冷却ファン
１３ 収納ケース
１３ａ ケース吸気口
１３ｂ，１３ｃ 冷却口
１３ｄ 風路

DESCRIPTION OF SYMBOLS 1 Main body 2 Insulation plate 3, 4 Heating part 5 Intake port 6 Exhaust port 7 Grill heating part 8 Operation part 9,10 Heating means 11 Output control board 12 Cooling fan 13 Storage case 13a Case inlet 13b, 13c Cooling port 13d Air path

Claims (1)

本体の上面に被加熱物を載置する絶縁板を設け、該絶縁板の下方に複数の加熱手段と、出力制御基板と、これらを冷却する冷却ファンとを設け、本体後部に上方へ向けて開口された吸気口と排気口とを設けた誘導加熱調理器において、
前記本体内には、グリル加熱部と、該グリル加熱部の側方に配置されると共に、内部に前記出力制御基板と前記冷却ファンとを収納し側面及び上部が塞がれた樹脂製の収納ケースが設置され、
該収納ケースは、前記吸気口と対応した前記上部位置に設けられたケース吸気口と、前記収納ケースの前記上部位置に設けられた複数の冷却口とを有し、
前記収納ケース内に前記ケース吸気口から前記複数の冷却口に至る風路を形成し、該風路の上流に前記冷却ファンを、下流に前記出力制御基板を配置し、
前記出力制御基板は上下方向に積み重ねて配置し、
前記ケース吸気口から流入した風は積み重ねて配置した前記出力制御基板を冷却した後前記複数の冷却口から排出されるようにし、
前記複数の加熱手段のうち少なくとも一つは前記収納ケースの上方に配置され、少なくとも一つは前記グリル加熱部の上方に配置され、
前記複数の冷却口のうち少なくとも一つは前記収納ケースの上方の加熱手段を冷却するように開口し、少なくとも一つは前記グリル加熱部の上方に配置された加熱手段を冷却するように開口した誘導加熱調理器。 An insulating plate for placing an object to be heated is provided on the upper surface of the main body, a plurality of heating means, an output control board, and a cooling fan for cooling them are provided below the insulating plate, and directed upward at the rear of the main body. In an induction heating cooker provided with an opened intake port and an exhaust port,
Inside the main body is a grill heating part and a resin storage which is disposed on the side of the grill heating part and which houses the output control board and the cooling fan and whose side and upper parts are closed. A case is installed,
The storage case includes said inlet and the corresponding casing inlet port provided in the upper position, and a plurality of cooling holes provided in said upper position of said housing case,
Forming an air passage from the case intake port to the plurality of cooling ports in the storage case, disposing the cooling fan upstream of the air passage, and disposing the output control board downstream;
The output control boards are stacked in the vertical direction,
The wind that has flowed in from the case air intake port is discharged from the plurality of cooling ports after cooling the output control board arranged in a stack ,
At least one of the plurality of heating means is disposed above the storage case, at least one is disposed above the grill heating unit,
At least one of the plurality of cooling ports is opened to cool the heating means above the storage case, and at least one is opened to cool the heating means disposed above the grill heating unit. Induction heating cooker.
JP2006287089A 2006-10-23 2006-10-23 Induction heating cooker Expired - Fee Related JP4110185B2 (en)

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JPS60174094U (en) * 1984-04-19 1985-11-18 三洋電機株式会社 Inverter module for induction cooker
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