JPH04209489A - Induction heating cooker - Google Patents
Induction heating cookerInfo
- Publication number
- JPH04209489A JPH04209489A JP34017890A JP34017890A JPH04209489A JP H04209489 A JPH04209489 A JP H04209489A JP 34017890 A JP34017890 A JP 34017890A JP 34017890 A JP34017890 A JP 34017890A JP H04209489 A JPH04209489 A JP H04209489A
- Authority
- JP
- Japan
- Prior art keywords
- heating coil
- coil
- voltage side
- high voltage
- electrostatic shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 56
- 230000006698 induction Effects 0.000 title claims description 13
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 31
- 239000002184 metal Substances 0.000 abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011888 foil Substances 0.000 abstract description 2
- 101150006573 PAN1 gene Proteins 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 206010014357 Electric shock Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、誘導加熱調理器の被加熱物である金属製の鍋
等の静電遮蔽に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to electrostatic shielding of a metal pot or the like that is an object to be heated in an induction heating cooker.
第４図は誘導加熱調理器の要部の断面斜視図であろう
セラミックやガラス等からなる載置台２の上に被加熱物
である金属製の鍋（以下金属鍋と称す）１が置かれ、載
置台２の裏面にはコイル支持体４によυ保持された加熱
コイ／Ｉ／３がある。Figure 4 is a cross-sectional perspective view of the main parts of an induction heating cooker.A metal pot (hereinafter referred to as metal pot) 1, which is an object to be heated, is placed on a mounting table 2 made of ceramic, glass, etc. On the back side of the mounting table 2, there is a heating coil/I/3 held by a coil supporter 4.
加熱コイル３は面周波の交番磁界を発生し、金属鍋１に
渦電流を生ずる。そのジュール熱によって金属鍋１が加
熱される。The heating coil 3 generates an alternating magnetic field with a surface frequency, causing an eddy current in the metal pot 1. The metal pot 1 is heated by the Joule heat.
第５図は、加熱コイ／ｌ／８を駆動して高周波の交番磁
界を発生するためのインバーター回路の例であって、シ
ングルエンドプッシュプル・インバーター回路と言われ
るものである。FIG. 5 shows an example of an inverter circuit for driving a heating coil/l/8 to generate a high-frequency alternating magnetic field, and is called a single-end push-pull inverter circuit.
第６図は、インバーター回路の他の例であって、−石共
振インバーター回路と言われている。FIG. 6 shows another example of an inverter circuit, which is called a -stone resonant inverter circuit.
それらのいずれの方式のインバーター回路であっても、
加熱コイル８と共振コンデンサー５は直列共振するよう
に駆動されるので、加熱コイ）ｖ３に通電されたコイル
電流は共振コンデンサー５を充電する。商用電源１２が
ＡＣ２００Ｖの大出力用誘導加熱調理器では、その充電
電圧が数１０ＫＶに達するものがちシ、それが加熱コイ
ｌｖ８と接続された共振コンデンサー５の一方の端子に
印加されている。No matter which type of inverter circuit you use,
Since the heating coil 8 and the resonant capacitor 5 are driven to resonate in series, the coil current applied to the heating coil v3 charges the resonant capacitor 5. In high-output induction heating cookers where the commercial power source 12 is AC200V, the charging voltage often reaches several tens of kilovolts, which is applied to one terminal of the resonant capacitor 5 connected to the heating coil lv8.
一方、加熱コイ／Ｉ／３の発生する交番磁界は、洩れ磁
束を少くして効率良く金属鍋１の底面に透磁させること
が必要で、このためには加熱コイ／Ｌ／３と金属鍋１を
構造的に可能な＠シ近接するようにしておシ、通常数ミ
リメータの距離しかない。On the other hand, it is necessary for the alternating magnetic field generated by the heating coil/I/3 to efficiently penetrate the bottom surface of the metal pot 1 by reducing the leakage magnetic flux. 1 are placed as close together as is structurally possible, typically only a few millimeters apart.
さらに、加熱コイ／Ｉ／３と金属鍋１の間にある載置台
２ば、耐熱性と強度の面からセラミックやガラスを用い
ているため、これらの誘電材料の特性から加熱コイル３
と金属鍋１０間の浮遊静電容量は数１００ＰＦの値とな
る。この浮遊静電容量を、第５図と第６図のインバータ
ー回路に等価的にコンデンサー６として示す。Furthermore, since the mounting stand 2 between the heating coil/I/3 and the metal pot 1 is made of ceramic or glass in terms of heat resistance and strength, the heating coil 3 is
The stray capacitance between the metal pot 10 and the metal pot 10 has a value of several hundred PF. This stray capacitance is equivalently shown as a capacitor 6 in the inverter circuits of FIGS. 5 and 6.
第５図または第６図のインバーター回路を駆動すると、
加熱コイ／Ｌ／３に印加される高電圧は、コンデンサー
６による静電結合によって金属鍋１にも逆極性の高電圧
を誘起し、人が金属鍋１に接触すると感電する危険があ
るため、従来では、特開昭５５−１２１２９８に示され
るように、天板の内面にカーボンや酸化錫等の導電体を
塗布した静電シールドパターンを設けたシ、あるいは特
開昭５９−１８２５９０に示されるように、調理なべを
載置する絶縁支持部材に、中心点を接地した並列な帯状
高導電金属アレイによる静電シールドを設けたυ、特開
昭６１−２７０８７に示されるように、トッププレート
の裏面に環状の静電シールド用導体を焼付け、それを接
地するようにしたものがあった。When driving the inverter circuit of FIG. 5 or 6,
The high voltage applied to the heating coil/L/3 induces a high voltage of the opposite polarity in the metal pot 1 due to the capacitor 6's electrostatic coupling, and there is a risk of electric shock if a person comes into contact with the metal pot 1. Conventionally, as shown in JP-A-55-121298, an electrostatic shield pattern coated with a conductive material such as carbon or tin oxide was provided on the inner surface of the top plate, or as shown in JP-A-59-182590. As shown in Japanese Patent Laid-Open No. 61-27087, an electrostatic shield is provided on an insulating support member on which a cooking pot is placed with an electrostatic shield made of parallel belt-shaped highly conductive metal arrays whose center point is grounded. There was one that had a ring-shaped electrostatic shielding conductor baked on the back and grounded.
［発明が解決しようとする課題］
従来からあるような天板の内面全体にカーボンや酸化錫
等を塗布あるいは焼付けして、シールド効果を効率的に
発生するには、塗布する材料の電気的特性や塗布する厚
みを選択することが困難であり、また並列な帯状高導電
金属アレイを静電シールドとする場合には、加熱コイル
の高圧側のシールド効果が不十分であった。[Problem to be solved by the invention] In order to efficiently generate a shielding effect by coating or baking carbon, tin oxide, etc. on the entire inner surface of a conventional top plate, it is necessary to consider the electrical characteristics of the applied material. It is difficult to select the coating thickness, and when parallel strip-shaped highly conductive metal arrays are used as an electrostatic shield, the shielding effect on the high voltage side of the heating coil is insufficient.
本発明の目的は、インバーター回路を駆動したときに印
加される加熱コイルの高電圧を、加熱コイルの発生する
交番磁界を効率的に金属鍋に印加しつつ、十分な静電遮
蔽を行うことを目的とする。An object of the present invention is to efficiently apply the alternating magnetic field generated by the heating coil to a metal pan while providing sufficient electrostatic shielding for the high voltage applied to the heating coil when the inverter circuit is driven. purpose.
本発明は、誘導加熱調理器の加熱コイルの高圧側の近傍
を覆うように非磁性導体の静電シールドを設け、かつそ
の静電シールドを接地したものである。In the present invention, an electrostatic shield made of a non-magnetic conductor is provided to cover the vicinity of the high voltage side of a heating coil of an induction heating cooker, and the electrostatic shield is grounded.
誘導加熱調理器の加熱コイルの発生する交番磁界は加熱
コイルの高圧側の近傍を覆う非磁性導体の静電シールド
に阻止されることなく、金属鍋に印加される。ここで、
加熱コイルの高圧側の近傍を覆うように非磁性導体の静
電シールドが設けられているので、加熱コイルと金属鍋
の間に介在する載置台による等価的なコンデンサーは、
その容量が減少するのみならず、金属鍋には加熱コイル
の低圧側に対応する逆極性の低電圧が誘起するのみであ
って、人が金属鍋に接触しても感電する危険はない。The alternating magnetic field generated by the heating coil of the induction heating cooker is applied to the metal pot without being blocked by an electrostatic shield made of a non-magnetic conductor that covers the vicinity of the high voltage side of the heating coil. here,
Since an electrostatic shield made of a non-magnetic conductor is provided to cover the vicinity of the high-voltage side of the heating coil, an equivalent capacitor with a mounting stand interposed between the heating coil and the metal pot is
Not only is its capacity reduced, but only a low voltage of opposite polarity corresponding to the low voltage side of the heating coil is induced in the metal pot, and there is no risk of electric shock if a person comes into contact with the metal pot.
［実施例］ 以下に本発明の実施例を述べる。[Example] Examples of the present invention will be described below.
第１図は本発明の静電シールドを設けた誘導加熱調理器
の要部の断面斜視図である。加熱コイル３は加熱コイル
保持台４に保持され、この加熱コイ）ｖＢは接続端子１
６ａと１６ｂを有する。一方の接続端子１６ａは第５図
もしくは第６図のインバーター回路の高圧側のＡＫ接続
され、他方の接続端子１６ｂばその低圧側のＢに接続さ
れる。FIG. 1 is a cross-sectional perspective view of a main part of an induction heating cooker provided with an electrostatic shield according to the present invention. The heating coil 3 is held on a heating coil holding stand 4, and this heating coil)vB is connected to the connection terminal 1.
6a and 16b. One connection terminal 16a is connected to the high voltage side AK of the inverter circuit of FIG. 5 or 6, and the other connection terminal 16b is connected to the low voltage side B of the inverter circuit.
加熱コイ／ｌｚ３の表面の電位勾配は、接続端子１６ａ
の高圧側から接続端子１６ｂの低圧側へと加熱コイルの
導体の抵抗値の分布に応じた分布をしている。The potential gradient on the surface of the heating coil/lz3 is
The resistance value is distributed from the high voltage side of the connecting terminal 16b to the low voltage side of the connecting terminal 16b in accordance with the distribution of the resistance value of the conductor of the heating coil.
本発明の非磁性導体からなる静電シールド１３は、加熱
コイル３の高圧部、即ち、加熱コイルの高圧側の接続端
子１６ａのある、加熱コイ／Ｌ／３の内周部の近傍に配
設され、外周部及び中央部には配設されていない。The electrostatic shield 13 made of a non-magnetic conductor of the present invention is arranged near the high voltage part of the heating coil 3, that is, the inner peripheral part of the heating coil/L/3 where the connection terminal 16a on the high voltage side of the heating coil is located. It is not arranged on the outer periphery or the center.
この静電シールド１３は例えば銅あるいはアルミニウム
を材料とした箔状のもので絶縁シー）１５を介して加熱
コイ）ｖＢに貼付けられ、リード線１４を経て接地され
ている。金属鍋１は載置台２の上に、加熱コイル３に対
向して置かれている。This electrostatic shield 13 is a foil made of copper or aluminum, for example, and is attached to the heating coil (vB) via an insulating sheet (15), and is grounded via a lead wire (14). A metal pot 1 is placed on a mounting table 2 facing a heating coil 3.
第２図は、本発明の静電シールド１３の効果を表わす、
誘導加熱調理器の主要部品を配置した断面図である。FIG. 2 shows the effect of the electrostatic shield 13 of the present invention.
FIG. 2 is a sectional view illustrating the main components of the induction heating cooker.
加熱コイルが発生する磁力線Ｍば、加熱コイル３の内周
部の近傍に配設さｎた静電シールド１３に阻止さ几るこ
となく、金属鍋１の底面を透磁し、そこに渦電流を発生
して加熱する。The magnetic lines of force M generated by the heating coil pass through the bottom of the metal pot 1 without being blocked by the electrostatic shield 13 disposed near the inner circumference of the heating coil 3, causing an eddy current there. is generated and heated.
第３図は、このとき金属鍋１に誘起する電圧に関する等
価回路であシ、加熱コイ／Ｌ／３と金属鍋１との間の浮
遊静電容量をＣ１加熱コイ／ｖ３の対地電圧をＶｃ金属
鍋１の対地抵抗をＲとし、インバーター回路の駆動周波
数をｆとすると次式の値となる。Figure 3 shows an equivalent circuit regarding the voltage induced in the metal pot 1 at this time. When the ground resistance of the metal pot 1 is R and the drive frequency of the inverter circuit is f, the following equation is obtained.
ω＝２Ｚｆ
また、浮遊静電容量Ｃは、加熱コイ／ＶＢと金属鍋１の
対向面積をＳとし、それらの対向距離をｔとすれば、次
式で近似される。ω=2Zf Furthermore, the stray capacitance C can be approximated by the following equation, where S is the facing area of the heating coil/VB and the metal pot 1, and t is the facing distance between them.
ε０：真空誘電率、６ｓ；比誘電率
ここで、本発明の静電シールド１３の面積をＳ′とすれ
ば、本発明の静電シールド１３を加熱コイル８と金属鍋
１の間に介在させることにより、浮遊容量Ｃ′は次式と
なって減少する。ε0: vacuum dielectric constant, 6s: relative permittivity Here, if the area of the electrostatic shield 13 of the present invention is S', then the electrostatic shield 13 of the present invention is interposed between the heating coil 8 and the metal pot 1. As a result, the stray capacitance C' decreases as shown in the following equation.
Ｃｏ ε５（Ｓ−３’）
ｃ’＝ （Ｆ）
さらに、金属鍋１の対地電圧Ｖｒ’は、加熱コイル３の
高圧側が静電シールドされるので、その対地電圧も減少
してＶｃ’となり、次の式で示される値となる。Co ε5(S-3') c'= (F) Furthermore, since the high voltage side of the heating coil 3 is electrostatically shielded, the voltage to ground Vr' of the metal pot 1 also decreases to Vc', The value is given by the following formula.
本実施例では、第１図と第２図に示されるように、静電
シールド１３を加熱コイｌｖ３の内周部としたが、加熱
コイル３の接続の極性を逆にすれば、その高圧部は外周
部に位置するので、そのときには静電シールド１３は加
熱コイル３の外周部に配設することにする。In this embodiment, as shown in FIGS. 1 and 2, the electrostatic shield 13 is placed at the inner peripheral part of the heating coil lv3, but if the polarity of the connection of the heating coil 3 is reversed, the high voltage part is located at the outer periphery of the heating coil 3, so in that case, the electrostatic shield 13 is arranged at the outer periphery of the heating coil 3.
また、本実施例では静電シールド１３を大地に接地した
が、第５図と第６図に示されるインバーター回路の対地
高周波インピーダンスの低い線路Ｃに接続しても同様の
効果が得られる。Further, in this embodiment, the electrostatic shield 13 is grounded to the earth, but the same effect can be obtained by connecting it to the line C having a low ground high frequency impedance of the inverter circuit shown in FIGS. 5 and 6.
さらに、本実施例では静電シールド１３の材料に箔状の
銅あるいはアルミニウムを用いたが、導電材料を基材と
した塗料を塗布してもよい。Furthermore, although foil-shaped copper or aluminum is used as the material for the electrostatic shield 13 in this embodiment, a paint based on a conductive material may be applied.
以上のように、本発明によれば、インバーター回路に発
生する高周波、高電圧の共振電圧による金属鍋への誘起
電圧を低減することができ、金属鍋の接触による感電を
防止することができる。As described above, according to the present invention, it is possible to reduce the induced voltage to the metal pot due to the high frequency, high voltage resonance voltage generated in the inverter circuit, and it is possible to prevent electric shock due to contact with the metal pot.
す
また、本発明は金属鍋を直接シード線等を用いて接地す
るものではないので、そのリード線の接続はずれや断線
による感電の危険もない。Furthermore, since the present invention does not directly ground the metal pot using a seed wire or the like, there is no risk of electric shock due to disconnection or disconnection of the lead wire.
さらに本発明の静電シールドは誘導加熱調理器の内部に
配設されるので、外観を損ねることもなぐ、安全かつ効
果的な静電遮蔽を行うことができる。Furthermore, since the electrostatic shield of the present invention is disposed inside the induction heating cooker, it is possible to provide safe and effective electrostatic shielding without damaging the appearance.
第１図は、本発明の誘導加熱調理器の要部の断面斜視図
、第２図は本発明の主要部品を配置した断面図、第３図
は等価回路図、第４図は従来の誘導加熱調理器の要部の
断面斜視図、第５図は一般のインバーター回路の電気回
路図、第６図はインバーター回路の他の例を示す電気回
路図である。
１・・・金属鍋、 ３・・・加熱コイル、 １３・・・
静電シールド。
代理人 弁理士 梅 １） 勝（他２名）第１図
第２ｔｇ
第３図
第４図Figure 1 is a cross-sectional perspective view of the main parts of the induction heating cooker of the present invention, Figure 2 is a cross-sectional view of the main parts of the present invention, Figure 3 is an equivalent circuit diagram, and Figure 4 is a conventional induction cooking device. FIG. 5 is an electric circuit diagram of a general inverter circuit, and FIG. 6 is an electric circuit diagram showing another example of the inverter circuit. 1...Metal pot, 3...Heating coil, 13...
electrostatic shield. Agent Patent Attorney Ume 1) Katsu (and 2 others) Figure 1 Figure 2 TG Figure 3 Figure 4
Claims (1)
加熱コイルの高圧側の近傍を覆うように非磁性導体を設
け、かつ該非磁性導体を接地することを特徴とした誘導
加熱調理器。1. Between the heating coil of the induction heating cooker and the object to be heated,
An induction heating cooker characterized in that a non-magnetic conductor is provided so as to cover the vicinity of a high-voltage side of a heating coil, and the non-magnetic conductor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34017890A JPH04209489A (en) | 1990-11-30 | 1990-11-30 | Induction heating cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34017890A JPH04209489A (en) | 1990-11-30 | 1990-11-30 | Induction heating cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04209489A true JPH04209489A (en) | 1992-07-30 |
Family
ID=18334474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34017890A Pending JPH04209489A (en) | 1990-11-30 | 1990-11-30 | Induction heating cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04209489A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2726962A1 (en) * | 1994-11-15 | 1996-05-15 | Europ Equip Menager | INDUCTION COOKING APPARATUS WITH REDUCED PARASITIC RADIATION |
| JP2007035473A (en) * | 2005-07-28 | 2007-02-08 | Matsushita Electric Ind Co Ltd | Induction heating device |
| JP2014116087A (en) * | 2012-12-06 | 2014-06-26 | Panasonic Corp | Induction heating cooker |
| JP2014143121A (en) * | 2013-01-25 | 2014-08-07 | Panasonic Corp | Induction heating cooker |
-
1990
- 1990-11-30 JP JP34017890A patent/JPH04209489A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2726962A1 (en) * | 1994-11-15 | 1996-05-15 | Europ Equip Menager | INDUCTION COOKING APPARATUS WITH REDUCED PARASITIC RADIATION |
| EP0713349A1 (en) * | 1994-11-15 | 1996-05-22 | Compagnie Europeenne Pour L'equipement Menager "Cepem" | Induction cooking apparatus with reduced stray radiation |
| US5658482A (en) * | 1994-11-15 | 1997-08-19 | Cepem | Induction cooker with reduced parasitic radiation |
| JP2007035473A (en) * | 2005-07-28 | 2007-02-08 | Matsushita Electric Ind Co Ltd | Induction heating device |
| JP2014116087A (en) * | 2012-12-06 | 2014-06-26 | Panasonic Corp | Induction heating cooker |
| JP2014143121A (en) * | 2013-01-25 | 2014-08-07 | Panasonic Corp | Induction heating cooker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5726886B2 (en) | Method and system for providing RF isolation for power circuits | |
| KR910003967B1 (en) | Stationary induction apparatus | |
| EP0364171B1 (en) | Highfrequency heating apparatus using frequency-converter-type power supply | |
| CN103187943B (en) | Radio-frequency filter for electrostatic chuck | |
| US5658482A (en) | Induction cooker with reduced parasitic radiation | |
| US4163139A (en) | Cooking vessel capacitive decoupling for induction cooking apparatus | |
| WO2017213376A1 (en) | Induction heating device | |
| JPH04209489A (en) | Induction heating cooker | |
| JP2609353B2 (en) | Induction heating cooker | |
| US9460885B2 (en) | Magnetron filter | |
| EP3441678B1 (en) | Cooking hob with at least one heating power transferring element | |
| JPH0475634B2 (en) | ||
| JP2005222822A (en) | Induction heating device | |
| JPS6321914Y2 (en) | ||
| JPS6028080Y2 (en) | induction heating cooker | |
| JPS59114788A (en) | Induction heating cooking device | |
| JP2827490B2 (en) | Induction heating cooker | |
| CN216087059U (en) | Electromagnetic heating assembly and electromagnetic heating cooking utensil | |
| ES2307555T3 (en) | INDUCTION FERMENTATION INSTALLATION. | |
| JPH0541274A (en) | Electromagnetic induction heating cooker | |
| JPS6116621Y2 (en) | ||
| JPH01120789A (en) | Electromagnetic cooker | |
| JPS6262428B2 (en) | ||
| JPS63299072A (en) | High-frequency heating device | |
| JPH0589955A (en) | Induction heating cooker |