JP2005216583A - Induction heating cooking device - Google Patents

Induction heating cooking device Download PDF

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JP2005216583A
JP2005216583A JP2004019575A JP2004019575A JP2005216583A JP 2005216583 A JP2005216583 A JP 2005216583A JP 2004019575 A JP2004019575 A JP 2004019575A JP 2004019575 A JP2004019575 A JP 2004019575A JP 2005216583 A JP2005216583 A JP 2005216583A
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pan
top plate
detection means
infrared
temperature
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JP4443947B2 (en
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Naoaki Ishimaru
直昭 石丸
Hirofumi Inui
弘文 乾
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07—Heating plates with temperature control means

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an induction heating cooking device capable of correctly detecting the temperature of a pan put on a top plate. <P>SOLUTION: This induction heating cooking device comprises a heating coil 3 for heating a pan 1, a top plate 2 arranged over the heating coil 3 and on which the pan 1 is put, infrared ray detecting means 5 arranged under the top plate 2 to detect infrared ray radiated from the bottom surface of the pan 1, temperature detecting means 9 for detecting the temperature of the bottom surface of the pan 1 from an output of the infrared ray detecting means 5, control means 10 for controlling electric power to be supplied to the heating coil 3 according to the output of the temperature detecting means 9 and shielding means 6 arranged over the top plate 2, wherein the shielding means 6 acts to inhibit the infrared ray not from the pan 1 to enter into the infrared ray detecting means 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、天板上の鍋の温度を精度良く検出することができる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 accurately detect the temperature of a pan on a top plate.

鍋などの被加熱物を加熱する誘導加熱調理器において、被加熱物の鍋の温度を検出する方式として、鍋を載置する天板を介してサーミスタで温度を検出する方式がある。また、鍋の側面から放射された赤外線を天板上面後方の赤外線センサで検出し温度を検出するものもある。さらには天板下面に赤外線センサを配置し、鍋からの赤外線を天板越しに検知するものもある（例えば、特許文献１参照）。
特開平３−１８４２９５号公報 In an induction heating cooker that heats an object to be heated such as a pan, as a method of detecting the temperature of the pan of the object to be heated, there is a method of detecting the temperature with a thermistor through a top plate on which the pan is placed. In addition, there is an apparatus for detecting the temperature by detecting the infrared ray radiated from the side surface of the pan with an infrared sensor behind the top surface of the top plate. Furthermore, an infrared sensor is arranged on the lower surface of the top plate to detect infrared rays from the pan through the top plate (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 3-184295

従来の構成の誘導加熱調理器では、鍋の温度を天板を介してサーミスタが受熱し、温度を検出している。ここで、セラミックからなる天板２は低い熱伝達率であり、この天板２の熱応答の遅れにより、実際の鍋の温度と誤差が発生し、被加熱物の温度が精度良く検出できないものである。また図３に示す従来の天板後方の赤外線センサでは、太陽光や照明などの外乱光の影響を受け、正確な温度検知ができない。さらに、天板下面に赤外線センサを配置しただけでは、斜めから入射外乱光があった場合には影響を受けることがある。また反った鍋の場合はさらに影響を受けやすい。   In an induction heating cooker having a conventional configuration, a thermistor receives the temperature of a pan through a top plate and detects the temperature. Here, the top plate 2 made of ceramic has a low heat transfer coefficient, and due to a delay in the thermal response of the top plate 2, an actual pan temperature and error occur, and the temperature of the object to be heated cannot be accurately detected. It is. In addition, the conventional infrared sensor behind the top plate shown in FIG. 3 is affected by ambient light such as sunlight or illumination, and cannot accurately detect temperature. Furthermore, if the infrared sensor is simply disposed on the bottom surface of the top plate, it may be affected when incident disturbance light is obliquely applied. In the case of a warped pan, it is more susceptible.

本発明は、鍋を加熱する加熱コイルと、前記加熱コイルの上部で鍋を載置する天板と、前記天板下面に置かれ前記鍋底面から放射される赤外線を検知する赤外線検出手段と、前記赤外線検出手段の出力から鍋底面温度を検出する温度検知手段と、前記温度検知手段の出力に応じて加熱コイルに供給する電力を制御する制御手段と、前記天板上部に位置する遮光手段と、前記遮光手段は前記赤外線検出手段に鍋以外からの赤外線が入射しないようにしたことで、鍋の温度を正確に検知し制御できる誘導加熱調理器としているものである。   The present invention is a heating coil that heats the pan, a top plate on which the pan is placed at the top of the heating coil, an infrared detection means that detects infrared rays that are placed on the bottom surface of the top plate and emitted from the bottom surface of the pan, Temperature detecting means for detecting the bottom surface temperature of the pan from the output of the infrared detecting means; control means for controlling the power supplied to the heating coil in accordance with the output of the temperature detecting means; and a light shielding means located above the top plate The light shielding means is an induction heating cooker capable of accurately detecting and controlling the temperature of the pan by preventing infrared rays from other than the pan from entering the infrared detecting means.

以上のように本発明によれば、鍋の温度を天板を介して赤外線検出手段で検出する構成において、外乱光の影響などを受けることなく鍋底の温度を正確に検出でき、鍋底の温度に合わせた温度制御をおこなえる誘導加熱調理器が実現できるものである。   As described above, according to the present invention, in the configuration in which the temperature of the pan is detected by the infrared detection means via the top plate, the temperature of the pan bottom can be accurately detected without being affected by ambient light, and the temperature of the pan bottom can be detected. An induction cooking device that can perform combined temperature control can be realized.

請求項１に記載の発明は、鍋を加熱する加熱コイルと、前記加熱コイルの上部で鍋を載置する天板と、前記天板下面に置かれ前記鍋底面から放射される赤外線を検知する赤外線検出手段と、前記赤外線検出手段の出力から鍋底面温度を検出する温度検知手段と、前記温度検知手段の出力に応じて加熱コイルに供給する電力を制御する制御手段と、前記赤外線検出手段に入射する赤外線を制限する遮光手段とを備え、前記遮光手段は、前記赤外線検出手段に鍋以外からの赤外線が天板を透過して入射しないように赤外線を反射あるいは吸収する材料で前記天板の上面あるいは下面に膜を形成した構成とすることで、前記赤外線検出手段に鍋以外からの赤外線が入射しないようにし、鍋の温度を正確に検知できる誘導加熱調理器としているものである。   The invention according to claim 1 detects a heating coil that heats the pan, a top plate on which the pan is placed above the heating coil, and infrared rays that are placed on the bottom surface of the top plate and emitted from the bottom surface of the pan. Infrared detection means, temperature detection means for detecting the bottom surface temperature from the output of the infrared detection means, control means for controlling the power supplied to the heating coil according to the output of the temperature detection means, and the infrared detection means Light shielding means for restricting incident infrared rays, and the light shielding means is a material that reflects or absorbs infrared rays so that infrared rays from other than the pan are not incident on the infrared detection means through the top plate. By using a structure in which a film is formed on the upper surface or the lower surface, an infrared heating cooker that can accurately detect the temperature of the pan is configured so that infrared rays from other than the pan are not incident on the infrared detection means. That.

請求項２に記載の発明は、鍋を加熱する加熱コイルと、前記加熱コイルの上部で鍋を載置する天板と、前記天板下面に置かれ前記鍋底面から放射される赤外線を検知する赤外線検出手段と、前記赤外線検出手段の出力から鍋底面温度を検出する温度検知手段と、前記温度検知手段の出力に応じて加熱コイルに供給する電力を制御する制御手段と、前記赤外線検出手段に入射する赤外線を制限する遮光手段とを備え、前記遮光手段は、前記赤外線検出手段にプレートを透過した後に機器内部でさらに反射した鍋以外からの赤外線が入射しないように赤外線を透過しない材料で前記赤外線検出手段の下部を覆うようにし、前記赤外線検出手段にプレートを透過した後に機器内部でさらに反射した鍋以外からの赤外線が入射しないようにしたことで、鍋の温度を正確に検知できる誘導加熱調理器としているものである。   The invention according to claim 2 detects a heating coil that heats the pan, a top plate on which the pan is placed above the heating coil, and infrared rays that are placed on the bottom surface of the top plate and emitted from the bottom surface of the pan. Infrared detection means, temperature detection means for detecting the bottom surface temperature from the output of the infrared detection means, control means for controlling the power supplied to the heating coil according to the output of the temperature detection means, and the infrared detection means Light shielding means for restricting incident infrared rays, and the light shielding means is made of a material that does not transmit infrared rays so that infrared rays from other than a pan that is further reflected inside the apparatus after being transmitted through the plate to the infrared detection means are not incident. By covering the lower part of the infrared detection means, and making infrared rays from other than the pan reflected further inside the device after passing through the plate to the infrared detection means Those that induction heating cooker capable of detecting the temperature of the pan accurately.

（実施の形態１）
以下、本発明の第１の実施例について説明する。図１は本実施例の構成を示すブロック図である。本実施例の誘導加熱調理器は、被加熱物を加熱調理する鍋１と、鍋１を載せる天板２と、加熱コイル３と、加熱コイル３に高周波電流を供給し、鍋１を電磁誘導で発熱させるインバータ４と、赤外線検知手段５と、遮光手段６と、反射手段７と、増幅手段８と、温度検出手段９と制御手段１０とを備えたものである。 (Embodiment 1)
The first embodiment of the present invention will be described below. FIG. 1 is a block diagram showing the configuration of this embodiment. The induction heating cooker of this embodiment supplies a high-frequency current to the pan 1 for cooking the object to be heated, the top plate 2 on which the pan 1 is placed, the heating coil 3 and the heating coil 3, and electromagnetic induction is applied to the pan 1. Inverter 4 for generating heat, infrared detecting means 5, light shielding means 6, reflecting means 7, amplifying means 8, temperature detecting means 9 and control means 10 are provided.

上記実施例１において、図示していない電源を投入し、操作スイッチで所定の運転モード例えば湯沸しなどを設定すると、制御手段１０からの制御によりインバータ４から加熱コイル３に電力を供給する。この加熱コイル３に電力が供給されると、加熱コイル３に誘導磁界が発生し、天板２上の鍋１が誘導加熱される。この誘導加熱によって鍋１の温度が上昇し、鍋１内の被加熱物が調理される。ここで赤外線検出手段の動作について説明する。鍋１の温度が上昇すると、その温度にあわせた赤外線が鍋から放射される。天板に使用されるガラスセラミックなどは２．５μｍ以下の波長域の赤外線を効率よく透過できるため、赤外線検知手段５は例えば２．５μｍ以下の波長を検出することができるＩｎＧａＡｓＰＩＮフォトダイオードなどで構成されており、天板を通ったこの波長域の赤外線がＰＩＮフォトダイオードに入射される。また反射手段７は反射率の高い鏡面等の構成になっており、より多くの赤外線を集光し、ＰＩＮフォトダイオードに入射できるようにしている。この赤外線検出手段の出力から温度検出手段９で鍋温度を検知できる。その温度検知手段からの出力で調理物の温度がわかるため、制御手段１０より温度に合わせたインバータ４の電力の制御が行えるものである。例えば運転モードが湯沸しの場合、１００℃を検知したら、沸騰状態と判断し、電力を保温電力に下げるといった制御が可能である。   In the first embodiment, when a power supply (not shown) is turned on and a predetermined operation mode such as boiling water is set with the operation switch, electric power is supplied from the inverter 4 to the heating coil 3 under the control of the control means 10. When electric power is supplied to the heating coil 3, an induction magnetic field is generated in the heating coil 3, and the pan 1 on the top plate 2 is induction-heated. Due to this induction heating, the temperature of the pan 1 rises and the object to be heated in the pan 1 is cooked. Here, the operation of the infrared detecting means will be described. When the temperature of the pan 1 rises, infrared rays corresponding to the temperature are emitted from the pan. Since the glass ceramic used for the top plate can efficiently transmit infrared rays having a wavelength range of 2.5 μm or less, the infrared detection means 5 is composed of, for example, an InGaAs PIN photodiode that can detect wavelengths of 2.5 μm or less. Infrared light of this wavelength range that has passed through the top plate is incident on the PIN photodiode. Further, the reflecting means 7 has a configuration such as a mirror surface having a high reflectance so that more infrared rays can be collected and incident on the PIN photodiode. The pan temperature can be detected by the temperature detecting means 9 from the output of the infrared detecting means. Since the temperature of the food is known from the output from the temperature detection means, the control means 10 can control the power of the inverter 4 according to the temperature. For example, in the case where the operation mode is boiling water, when 100 ° C. is detected, it is possible to determine that the boiling state is reached, and to control the electric power to the heat retaining power.

赤外線検知手段５の受光部には鍋１からの赤外線以外にも太陽光や照明などの外乱光が自然界には存在し外部から放射されてくる。このため遮光手段６により、鍋１以外からこの赤外線検出手段５に入射する赤外線を遮断している。この遮光手段６は天板上面に配置され天板と同種のガラスセラミックを含有した材料が焼き付けられている。その外観は例えば反射率の高い光沢のある鏡面や銀色のものとなっている。このため入射してくる外乱光は表面で反射し、赤外線検出手段５には入射されない。あるいは遮光手段を光の吸収率の高い材料を含有したものを焼き付けて、外乱光を天板表面で吸収し、赤外線検出手段に直接入射できないようにしてもよい。例えば黒色などの材料を含有すると吸収率が高くなる。この構成により、赤外線センサへの外乱光を遮断し、安定して鍋の温度を正確に検知し、被加熱物をメニューに合わせて調理することができるものである。そして、本実施例の遮光手段６は天板２の上面に配しているが、天板２の下面に配しても同じ効果を得ることができる。また、遮光手段は、焼き付け塗装に限らず、天板の上面あるいは下面に近接させて膜状の物体を設けるものであれば、同様の効果を得られるものである。   In the light receiving portion of the infrared detecting means 5, disturbance light such as sunlight and illumination other than infrared rays from the pan 1 exists in the natural world and is emitted from the outside. For this reason, the infrared rays incident on the infrared detection means 5 from other than the pan 1 are blocked by the light shielding means 6. The light shielding means 6 is disposed on the top plate and is baked with a material containing glass ceramic of the same type as the top plate. The appearance is, for example, a glossy mirror surface with a high reflectivity or silver. For this reason, incident disturbance light is reflected by the surface and is not incident on the infrared detecting means 5. Alternatively, the light shielding means may be baked to contain a material having a high light absorption rate so that ambient light is absorbed by the top plate surface so that it cannot be directly incident on the infrared detecting means. For example, when a material such as black is contained, the absorption rate is increased. With this configuration, disturbance light to the infrared sensor is blocked, the temperature of the pan is stably detected accurately, and the object to be heated can be cooked according to the menu. The light shielding means 6 of this embodiment is disposed on the top surface of the top plate 2, but the same effect can be obtained even if it is disposed on the bottom surface of the top plate 2. Further, the light shielding means is not limited to baking painting, and the same effect can be obtained if a film-like object is provided close to the upper surface or the lower surface of the top plate.

（実施の形態２）
図２は本発明の実施例２の構成を示すブロック図である。本実施例の誘導加熱調理器は、天板の構成と赤外検出手段の下部の遮光手段の構成が実施例１と異なるだけで、それ以外の同一構成及び作用効果を奏する部分には同一符号を付して詳細な説明は省略し、異なる点を中心に説明する。１１は赤外線検出手段５の下部に設けた遮光手段、１２は機器の筐体である。 (Embodiment 2)
FIG. 2 is a block diagram showing the configuration of the second embodiment of the present invention. The induction heating cooker of the present embodiment is different from the first embodiment only in the structure of the top plate and the structure of the light shielding means below the infrared detecting means, and the other parts having the same structure and operational effects are denoted by the same reference numerals. Detailed description will be omitted, and different points will be mainly described. Reference numeral 11 denotes a light shielding means provided at the lower part of the infrared detecting means 5, and 12 denotes a casing of the device.

上記実施例２において、天板２上の鍋１が誘導加熱されると鍋１の温度が上昇し、鍋１内の被加熱物が調理される。鍋１の温度が上昇すると、その温度にあわせた赤外線が鍋から放射される。この赤外線が赤外線検出手段５のＰＩＮフォトダイオードに入射される。また反射手段７は反射率の高い鏡面等の構成になっており、より多くの赤外線を集光し、ＰＩＮフォトダイオードに入射できるようにしている。この赤外線検出手段５の出力から温度検出手段９で鍋温度を検知できる。その温度検知手段９からの出力で調理物の温度がわかるため、制御手段１０より温度に合わせたインバータ４の電力の制御が行えるものである。   In the said Example 2, when the pan 1 on the top plate 2 is induction-heated, the temperature of the pan 1 will rise and the to-be-heated material in the pan 1 will be cooked. When the temperature of the pan 1 rises, infrared rays corresponding to the temperature are emitted from the pan. This infrared light is incident on the PIN photodiode of the infrared detecting means 5. Further, the reflecting means 7 has a configuration such as a mirror surface having a high reflectance so that more infrared rays can be collected and incident on the PIN photodiode. The pan temperature can be detected by the temperature detecting means 9 from the output of the infrared detecting means 5. Since the temperature of the food is known from the output from the temperature detection means 9, the control means 10 can control the power of the inverter 4 in accordance with the temperature.

ただし、鍋１以外の外部からの外乱光もわずかであるが天板内を透過して機器の内部にも入射される。この外乱光の赤外線が機器の筐体１２の内部の鋼板などで反射し、赤外線検出手段５に入射することが無いように、赤外線検出手段５に下方からの光が入射することの無いように、内部で反射した赤外線を遮蔽手段１１で反射または吸収する覆いを赤外線検出手段５の下方に配している。例えば反射率の高い光沢のある鏡面のアルミニウムなどを用いて反射することで、赤外線検出手段５に入射することはない。あるいは遮光手段１１を光の吸収率の高い材料例えばアルミニウムに黒体塗料を塗布したものとし、外乱光を吸収し、赤外線検出手段５に直接入射できないようにしてもよい。この構成により、赤外線検出手段への外乱光を遮断し、安定して鍋の温度を正確に検知し、被加熱物をメニューに合わせて調理することができるものである。   However, the disturbance light from the outside other than the pan 1 is also slight, but passes through the top plate and enters the inside of the apparatus. In order that the infrared light of the disturbance light is reflected by a steel plate or the like inside the housing 12 of the device and does not enter the infrared detection means 5, the light from below is not incident on the infrared detection means 5. A cover that reflects or absorbs the infrared rays reflected from the inside by the shielding means 11 is disposed below the infrared detection means 5. For example, it is not incident on the infrared detecting means 5 by being reflected using a glossy mirror surface aluminum having a high reflectance. Alternatively, the light shielding unit 11 may be a material having a high light absorption rate such as aluminum coated with a black body paint so that ambient light is absorbed so that it cannot be directly incident on the infrared detection unit 5. With this configuration, disturbance light to the infrared detecting means is blocked, the temperature of the pan is stably detected accurately, and the object to be heated can be cooked in accordance with the menu.

本発明は、天板上の鍋の温度を赤外線センサで検出する誘導加熱調理器に応用できるものである。   The present invention can be applied to an induction heating cooker that detects the temperature of a pan on a top plate with an infrared sensor.

本発明の実施例１における誘導加熱調理器を示すブロック図The block diagram which shows the induction heating cooking appliance in Example 1 of this invention. 実施例２における誘導加熱調理器を示すブロック図The block diagram which shows the induction heating cooking appliance in Example 2 従来例における誘導加熱調理器を示すブロック図The block diagram which shows the induction heating cooking appliance in a prior art example

符号の説明Explanation of symbols

１ 鍋
２ 天板
３ 加熱コイル
４ インバータ
５ 赤外線検出手段
６、１１ 遮光手段
７ 反射手段
８ コイルベース
９ 温度検出手段
１０ 制御手段
１２ 筐体
１３ 赤外線センサ DESCRIPTION OF SYMBOLS 1 Pan 2 Top plate 3 Heating coil 4 Inverter 5 Infrared detection means 6, 11 Light-shielding means 7 Reflection means 8 Coil base 9 Temperature detection means 10 Control means 12 Case 13 Infrared sensor

Claims (2)

鍋を加熱する加熱コイルと、前記加熱コイルの上部で鍋を載置する天板と、前記天板下面に置かれ前記鍋底面から放射される赤外線を検知する赤外線検出手段と、前記赤外線検出手段の出力から鍋底面温度を検出する温度検知手段と、前記温度検知手段の出力に応じて加熱コイルに供給する電力を制御する制御手段と、前記赤外線検出手段に入射する赤外線を制限する遮光手段とを備え、前記遮光手段は、前記赤外線検出手段に鍋以外からの赤外線が天板を透過して入射しないように赤外線を反射あるいは吸収する材料で前記天板の上面あるいは下面に膜を形成した誘導加熱調理器。 A heating coil for heating the pan; a top plate on which the pan is placed above the heating coil; an infrared detection means for detecting infrared rays placed on the bottom surface of the top plate and emitted from the bottom surface of the pan; and the infrared detection means Temperature detection means for detecting the bottom surface temperature of the pan from the output, control means for controlling the power supplied to the heating coil according to the output of the temperature detection means, and a light shielding means for limiting the infrared rays incident on the infrared detection means The light shielding means includes a guide that forms a film on the upper surface or the lower surface of the top plate with a material that reflects or absorbs infrared rays so that infrared rays from other than the pan do not pass through the top plate and enter the infrared detection means. Cooking cooker. 鍋を加熱する加熱コイルと、前記加熱コイルの上部で鍋を載置する天板と、前記天板下面に置かれ前記鍋底面から放射される赤外線を検知する赤外線検出手段と、前記赤外線検出手段の出力から鍋底面温度を検出する温度検知手段と、前記温度検知手段の出力に応じて加熱コイルに供給する電力を制御する制御手段と、前記赤外線検出手段に入射する赤外線を制限する遮光手段とを備え、前記遮光手段は、前記赤外線検出手段にプレートを透過した後に機器内部でさらに反射した鍋以外からの赤外線が入射しないように赤外線を透過しない材料で前記赤外線検出手段の下部を覆うようにした誘導加熱調理器。 A heating coil for heating the pan; a top plate on which the pan is placed above the heating coil; an infrared detection means for detecting infrared rays placed on the bottom surface of the top plate and emitted from the bottom surface of the pan; and the infrared detection means Temperature detection means for detecting the bottom surface temperature of the pan from the output, control means for controlling the power supplied to the heating coil according to the output of the temperature detection means, and a light shielding means for limiting the infrared rays incident on the infrared detection means The light shielding means covers the lower part of the infrared detection means with a material that does not transmit infrared rays so that infrared rays from other than the pan that is further reflected inside the apparatus after passing through the plate to the infrared detection means are not incident. Induction heating cooker.
JP2004019575A 2004-01-28 2004-01-28 Induction heating cooker Expired - Fee Related JP4443947B2 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006207961A (en) * 2005-01-31 2006-08-10 Osaka Gas Co Ltd Cooking stove
JP2006207962A (en) * 2005-01-31 2006-08-10 Osaka Gas Co Ltd Cooking stove
WO2009055998A1 (en) * 2007-10-31 2009-05-07 Xiangsheng Teng A radiation elimination device for electromagnetic oven without radiation
EP2117282A1 (en) * 2007-01-10 2009-11-11 Panasonic Corporation Induction heating cooking device
WO2010007725A1 (en) 2008-07-18 2010-01-21 日本電気硝子株式会社 Top plate for cooking device
JP2011054517A (en) * 2009-09-04 2011-03-17 Mitsubishi Electric Corp Electromagnetic induction heating cooker
JP2011253761A (en) * 2010-06-03 2011-12-15 Mitsubishi Electric Corp Induction heating cooking device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006207961A (en) * 2005-01-31 2006-08-10 Osaka Gas Co Ltd Cooking stove
JP2006207962A (en) * 2005-01-31 2006-08-10 Osaka Gas Co Ltd Cooking stove
JP4557732B2 (en) * 2005-01-31 2010-10-06 大阪瓦斯株式会社 Stove
JP4628118B2 (en) * 2005-01-31 2011-02-09 大阪瓦斯株式会社 Stove
EP2117282A1 (en) * 2007-01-10 2009-11-11 Panasonic Corporation Induction heating cooking device
EP2117282A4 (en) * 2007-01-10 2012-10-24 Panasonic Corp Induction heating cooking device
WO2009055998A1 (en) * 2007-10-31 2009-05-07 Xiangsheng Teng A radiation elimination device for electromagnetic oven without radiation
WO2010007725A1 (en) 2008-07-18 2010-01-21 日本電気硝子株式会社 Top plate for cooking device
US8834994B2 (en) 2008-07-18 2014-09-16 Nippon Electric Glass Co., Ltd. Top plate for cooking device
JP2011054517A (en) * 2009-09-04 2011-03-17 Mitsubishi Electric Corp Electromagnetic induction heating cooker
JP2011253761A (en) * 2010-06-03 2011-12-15 Mitsubishi Electric Corp Induction heating cooking device

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