JP4096813B2 - Induction heating cooker - Google Patents

Induction heating cooker Download PDF

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Publication number
JP4096813B2
JP4096813B2 JP2003152495A JP2003152495A JP4096813B2 JP 4096813 B2 JP4096813 B2 JP 4096813B2 JP 2003152495 A JP2003152495 A JP 2003152495A JP 2003152495 A JP2003152495 A JP 2003152495A JP 4096813 B2 JP4096813 B2 JP 4096813B2
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JP
Japan
Prior art keywords
pan
temperature
output
inverter circuit
heating
Prior art date
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Expired - Fee Related
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JP2003152495A
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Japanese (ja)
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JP2004355962A (en
Inventor
博 富永
知香 河添
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2003152495A priority Critical patent/JP4096813B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、一般キッチンや業務用等に用いられる誘導加熱調理器に関するものである。
【0002】
【従来の技術】
近年、誘導加熱調理器は安全・清潔・高効率という優れた特徴が認知され、一般家庭のキッチンや業務用等に広く普及されている。
【0003】
従来この種の誘導加熱調理器は、加熱コイル中心から外周方向に複数の温度検知素子を配置して、各々の温度検知素子の検知温度が不均一状態になると、加熱コイル上方に載置されている鍋が鍋ずれ状態で加熱されていることを報知していた(例えば、特許文献1参照)。
【0004】
【特許文献1】
実開昭62−188086号公報
【0005】
【発明が解決しようとする課題】
しかしながら上記従来の構成では、鍋を加熱コイル中央部に載置されると、複数の温度検知素子の検知温度は均一状態になり、鍋ずれ時と同様に漏洩磁束が大きい小鍋を加熱コイル中央に載置されても鍋ずれ報知することができないので、不要輻射が大きい状態で機器を動作継続してしまうという課題があった。
【0006】
また、鍋ずれを検知しても加熱出力を制限しないので、使用者が報知に気づいて機器を操作しない限り、不要輻射が大きい状態で機器を継続してしまうという課題があった。
【0007】
また、小鍋や鍋ずれ時は加熱コイル平面に対する投影部の金属部分の面積が小さいので、加熱コイルと略同一径の鍋を中央に載置された場合に比べて、加熱出力が同じであれば単位面積あたりの発熱が大きくなるため、鍋内部の調理物の吹きこぼれや沸騰時の飛び散り、突沸といった現象が現れやすいという課題があった。
【0008】
本発明は上記課題を解決するもので、小鍋加熱時も鍋ずれ加熱時も調理物の吹きこぼれや不要輻射を低減できる誘導加熱調理器を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記目的を達成するために、本発明の誘導加熱調理器は、鍋を加熱する加熱コイルと、前記加熱コイルに高周波電流を供給するインバータ回路と、前記インバータ回路の出力を制御する制御手段と、前記加熱コイル中央部の鍋温度を検知する第1の温度検知手段と、前記加熱コイルの外周と内周の中間付近の鍋温度を検知する第2の温度検知手段と、前記第1の温度検知手段の検知温度と前記第2の温度検知手段の検知温度との温度差より鍋状態を判定する鍋判定手段を備え、前記制御手段は、前記鍋判定手段にて前記第1の温度検知手段の検知温度が前記第2の温度検知手段の検知温度より所定以上高いと検知されると前記インバータ回路の出力を制限するとともにインバータ回路の出力制限レベルを調節する出力制限調節手段を備えた構成とし、鍋判定手段にて第1の温度検知手段の検知温度が第2の温度検知手段の検知温度より所定以上高いと判定されるとインバータ回路の出力を制限するものである。
【0010】
これにより、小鍋や鍋ずれにより加熱コイルの外周と内周の中間部分にある第2の温度検知手段上方に鍋が覆われていない状態で加熱された場合に、加熱出力を制限することができ、調理器周囲への不要輻射や、鍋内部の調理物の吹きこぼれおよび突沸を低減することができる。
【0011】
また、小鍋や鍋ずれ加熱時の加熱出力の制限レベルを使用している鍋形状に応じて設定することが可能となる。
【0012】
【発明の実施の形態】
本発明の請求項1に記載の発明は、鍋を加熱する加熱コイルと、前記加熱コイルに高周波電流を供給するインバータ回路と、前記インバータ回路の出力を制御する制御手段と、前記加熱コイル中央部の鍋温度を検知する第1の温度検知手段と、前記加熱コイルの外周と内周の中間付近の鍋温度を検知する第2の温度検知手段と、前記第1の温度検知手段の検知温度と前記第2の温度検知手段の検知温度との温度差より鍋状態を判定する鍋判定手段を備え、前記鍋判定手段にて前記第1の温度検知手段の検知温度が前記第2の温度検知手段の検知温度より所定以上高いと検知されると、前記制御手段は前記インバータ回路の出力を制限するとともにインバータ回路の出力制限レベルを調節する出力制限調節手段を備えた構成とするものである。
【0013】
これにより、小鍋や鍋ずれにより加熱コイルの外周と内周の中間部分にある第2の温度検知手段上方に鍋が覆われていない状態で加熱された場合に、加熱出力を制限することができ、調理器周囲への不要輻射や、鍋内部の調理物の吹きこぼれおよび突沸を低減することができる。
【0014】
また、小鍋や鍋ずれ加熱時の加熱出力の制限レベルを使用している鍋形状に応じて設定することが可能となる。
【0015】
本発明の請求項2に記載の発明は、鍋判定手段からの信号の有効性を選択する選択手段を備え、制御手段は前記選択手段にて前記鍋判定手段からの信号を無効と選択された場合にはインバータ回路の出力制限を行わない構成とするものである。
【0016】
これにより、小鍋や鍋ずれと判定されて加熱出力が制限される場合でも、鍋判定手段からの信号を無効と選択設定することにより、大きな加熱出力を得ることが可能となる。
【0017】
【実施例】
(実施例1)
以下本発明の実施例について、図面を参照しながら説明する。
【0018】
図1において、11は商用電源、12は商用電源11を直流に変換する整流回路、13は加熱コイル、14は加熱コイル13に高周波電流を供給するインバータ、15はインバータ回路14の出力を制御する制御手段、16は加熱コイル13略中央部の鍋温度を検知する第1の温度検知手段、17は加熱コイル13のコイルの外周と内周の中間部分の鍋温度を検知する第2の温度検知手段でそれぞれサーミスタにて構成されている。18は第1の温度検知手段16と第2の温度検知手段17の検知温度差により鍋の状態を判定する鍋判定手段、19は鍋判定手段18の判定結果の有効性を選択する選択手段、20はインバータ回路14の出力制限量を調節する出力制限調節手段、21は選択手段19および出力制限調節手段20の設定状態を記憶する記憶手段、22はインバータ回路13の最大出力制限状態を表示する表示手段である。
【0019】
図2(a)と(b)に加熱コイル13と第1の温度検知手段16および第2の温度検知手段17の配置図を示す。コイルベース23上に中間で分割された加熱コイル13が配置され、第1の温度検知手段16は加熱コイル13略中央部、第2の温度検知手段17は加熱コイル13のコイルの外周と内周の中間にあるコイル分割部の上方のトッププレート24に接してそれぞれ配置されている。
【0020】
以上のように構成された誘導加熱調理器についてその動作を説明する。インバータ回路14より加熱コイル13に高周波電流が供給されると、加熱コイル13上方に載置された負荷鍋が加熱される。制御手段15は予め設定された加熱出力となるようにインバータ回路14の出力を制御する。
【0021】
トッププレート24上に第1の温度検知手段16と第2の温度検知手段17が覆われる程度の大きさの鍋が載置されて加熱すると、加熱コイル中央部より加熱コイル中間部分の磁束密度分布が大きいため、図3に示すように第2の温度検知手段17の温度(図3のb)の方が第1の温度検知手段16の温度(図3のa)より高くなる。
【0022】
小鍋や鍋ずれにより第2の温度検知手段17が鍋で覆われない状態で加熱すると、第2の温度検知手段17には鍋からの熱伝達がほとんどないので図3のcに示すように第1の温度検知手段16の温度よりも低くなる。第1の温度検知手段16の温度が第2の温度検知手段17の温度より△T高くなると、鍋判定手段18はインバータ回路14による加熱出力を下げる。
【0023】
鍋判定手段18で小鍋と判定されると、表示手段22はその旨を表示する。
【0024】
出力制限により最大出力設定でも火力不足と感じる場合には、選択手段19にて鍋判定手段18の判定結果を無効とする選択に設定すると、制御手段15は加熱出力制限を解除し予め設定された加熱出力となるようにインバータ回路14を制御する。
【0025】
また、使用している鍋の形状により沸騰状態が異なるので、沸騰時の吹きこぼれや突沸が状態に応じて、出力制限調節手段20からの調整により加熱出力制限レベルを増減する。
【0026】
また、加熱時の不要輻射により周辺機器への影響が大きい場合にも、出力制限調節手段20により加熱出力制限レベルを増減する。
【0027】
選択手段19および出力制限調節手段20での設定状態は記憶手段21で記憶されており、一度電源スイッチをオフした後も小鍋や鍋ずれ状態で再加熱を開始すると、電源スイッチをオフする前と同じ設定にて出力制限を行う。
【0028】
以上のように本実施例によれば鍋判定手段18にて小鍋と判定すると、加熱出力を制限するので、小鍋や鍋ずれ加熱時に鍋内の液体の吹きこぼれや沸騰時の突沸を低減することができるとともに、不要輻射による周辺機器への影響を抑制することができる。
【0029】
また、鍋判定を無効とすることができるので、使用者が小鍋加熱時の加熱出力を大きくしたい場合には、予め設定された加熱出力まで火力を増加することができる。
【0030】
また、最大出力の制限レベルを変更することができるので、使用している鍋での吹きこぼれや突沸の状況、あるいは加熱時の不要輻射による周辺機器への影響度合いに応じて、加熱出力を最適化することができる。
【0031】
また、出力制限の設定状態を記憶することができるので、一度設定すると再設定する必要なく、出力制限を同じ状態で再現することができる。
【0032】
また、出力制限時に表示を行うので、使用者が出力制限状態であることを容易に識別することができる。
【0033】
なお、本実施例では第2の温度検知手段17は1つのサーミスタにて構成したが、複数箇所に複数のサーミスタを設けて少なくとも1つのサーミスタでの検知温度が第1の温度検知手段16の検知温度より△T低い場合に鍋判定手段18が小鍋と判定しても同様の効果が得られる。
【0034】
また、第1の温度検知手段16および第2の温度検知手段17はサーミスタ以外の赤外線放射温度より検知しても同様の効果が得られる。
【0035】
また、加熱コイル13を内外分割形状としたが、内外コイルの分割比率については特に限定しないし、分割なしの1重コイルで構成し第2の温度検知手段17をサーミスタと受熱板にて構成しても同様の効果が得られる。
【0036】
【発明の効果】
以上のように本発明は、負荷鍋の形状に応じてインバータ回路の出力を変更するので、小鍋や鍋ずれ加熱時のインバータ回路による加熱出力を制限することができ、沸騰時に鍋内の調理物の吹きこぼれや突沸を低減でき、また不要輻射による周辺機器への影響を抑えることができる。
【0037】
また、小鍋や鍋ずれ加熱時の加熱出力の制限レベルを使用している鍋形状に応じて設定することが可能となる。
【図面の簡単な説明】
【図1】 本発明の第1の実施例における誘導加熱調理器のブロック図
【図2】 (a)同、誘導加熱調理器の加熱コイル部分の上面図
(b)同、誘導加熱調理器の加熱コイル部分のA−A’断面図
【図3】 同誘導加熱調理器における温度検知回路の検知温度を示す図
【符号の説明】
13 加熱コイル
14 インバータ回路
15 制御手段
16 第1の温度検知手段
17 第2の温度検知手段
18 鍋判定手段
19 選択手段
20 出力制限調節手段
21 記憶手段
22 表示手段
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an induction heating cooker used for a general kitchen or business use.
[0002]
[Prior art]
In recent years, induction heating cookers have been recognized for their excellent features such as safety, cleanliness, and high efficiency, and have been widely used in kitchens for general homes and business use.
[0003]
Conventionally, this type of induction heating cooker is placed above the heating coil when a plurality of temperature detection elements are arranged in the outer circumferential direction from the center of the heating coil and the detected temperature of each temperature detection element becomes non-uniform. It was informed that the pot which is being heated in the pan misalignment state (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 62-188086 [0005]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, when the pan is placed in the center of the heating coil, the detection temperatures of the plurality of temperature detection elements become uniform, and a small pan with a large leakage magnetic flux is placed in the center of the heating coil in the same manner as when the pan is displaced. Even if it is placed, the pan shift cannot be reported, so that there is a problem that the device continues to operate in a state where unnecessary radiation is large.
[0006]
Moreover, since the heating output is not limited even if the pan shift is detected, there is a problem that the device is continued in a state where unnecessary radiation is large unless the user notices the notification and operates the device.
[0007]
Also, since the area of the metal part of the projection part relative to the heating coil plane is small when the pan or pan is displaced, if the heating output is the same as compared to the case where the pan of the same diameter as the heating coil is placed in the center Since heat generation per unit area increases, there is a problem that phenomena such as spilling of food in the pot, splashing during boiling, and bumping are likely to appear.
[0008]
This invention solves the said subject, and it aims at providing the induction heating cooker which can reduce the spilling of a cooking thing and unnecessary radiation at the time of a small pan heating and a pan shift heating.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an induction cooking device of the present invention comprises a heating coil for heating a pan, an inverter circuit for supplying a high-frequency current to the heating coil, and a control means for controlling the output of the inverter circuit; 1st temperature detection means which detects the pan temperature of the said heating coil center part, 2nd temperature detection means which detects the pan temperature near the intermediate | middle of the outer periphery and inner periphery of the said heating coil, and said 1st temperature detection Provided with a pan determining means for determining a pan state from a temperature difference between a detected temperature of the means and a detected temperature of the second temperature detecting means, and the control means includes a first pan of the first temperature detecting means. A structure provided with output restriction adjusting means for restricting the output of the inverter circuit and adjusting the output restriction level of the inverter circuit when the detected temperature is detected to be higher than the detection temperature of the second temperature detecting means by a predetermined value or more. And then, those detected temperature of the first temperature sensing means at a pot determining means for limiting the output of the detected temperature when more is determined that the predetermined or higher inverter circuit of the second temperature sensing means.
[0010]
As a result, the heating output can be limited when the pan is heated in a state where the pan is not covered above the second temperature detecting means in the middle portion between the outer periphery and the inner periphery of the heating coil due to a small pan or pan deviation. Unnecessary radiation around the cooking device, and spilling and bumping of the cooked food inside the pan can be reduced.
[0011]
Moreover, it becomes possible to set according to the pan shape which uses the restriction | limiting level of the heating output at the time of a small pan or pan deviation heating.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a heating coil for heating a pan, an inverter circuit for supplying a high-frequency current to the heating coil, a control means for controlling an output of the inverter circuit, and a central portion of the heating coil. A first temperature detecting means for detecting the temperature of the pan, a second temperature detecting means for detecting a pot temperature near the middle of the outer periphery and the inner periphery of the heating coil, and a detected temperature of the first temperature detecting means, A pan determination unit that determines a pan state from a temperature difference from a detection temperature of the second temperature detection unit is provided, and the temperature detected by the first temperature detection unit is the second temperature detection unit by the pan determination unit. If it is detected that the temperature is higher than a predetermined temperature, the control means includes an output limit adjusting means for limiting the output of the inverter circuit and adjusting the output limit level of the inverter circuit .
[0013]
As a result, the heating output can be limited when the pan is heated in a state where the pan is not covered above the second temperature detecting means in the middle portion between the outer periphery and the inner periphery of the heating coil due to a small pan or pan deviation. Unnecessary radiation around the cooking device, and spilling and bumping of the cooked food inside the pan can be reduced.
[0014]
Moreover, it becomes possible to set according to the pan shape which uses the restriction | limiting level of the heating output at the time of a small pan or pan deviation heating.
[0015]
The invention according to claim 2 of the present invention comprises selection means for selecting the validity of the signal from the pan determination means, and the control means has been selected as invalid by the selection means as the signal from the pan determination means. In this case, the output of the inverter circuit is not limited.
[0016]
Thereby, even when it is determined that the pot is a pan or a pan shift and the heating output is limited, it is possible to obtain a large heating output by selectively setting the signal from the pot determining means as invalid.
[0017]
【Example】
Example 1
Embodiments of the present invention will be described below with reference to the drawings.
[0018]
In FIG. 1, 11 is a commercial power source, 12 is a rectifier circuit that converts the commercial power source 11 into direct current, 13 is a heating coil, 14 is an inverter that supplies high-frequency current to the heating coil 13, and 15 is for controlling the output of the inverter circuit 14. Control means, 16 is a first temperature detection means for detecting the pan temperature at the substantially central portion of the heating coil 13, and 17 is a second temperature detection for detecting the pan temperature at the intermediate portion between the outer periphery and inner periphery of the heating coil 13. Each means comprises a thermistor. 18 is a pan determining means for determining the state of the pan based on the detected temperature difference between the first temperature detecting means 16 and the second temperature detecting means 17, 19 is a selecting means for selecting the validity of the determination result of the pot determining means 18, 20 is an output limit adjusting means for adjusting the output limit amount of the inverter circuit 14, 21 is a storage means for storing the setting states of the selection means 19 and the output limit adjusting means 20, and 22 is a maximum output limit state of the inverter circuit 13. It is a display means.
[0019]
2A and 2B are arrangement diagrams of the heating coil 13, the first temperature detection means 16, and the second temperature detection means 17, respectively. The heating coil 13 divided in the middle is arranged on the coil base 23, the first temperature detection means 16 is the substantially central part of the heating coil 13, and the second temperature detection means 17 is the outer periphery and inner periphery of the heating coil 13. Are arranged in contact with the top plate 24 above the coil division part in the middle of each.
[0020]
The operation | movement is demonstrated about the induction heating cooking appliance comprised as mentioned above. When a high frequency current is supplied from the inverter circuit 14 to the heating coil 13, the load pan placed above the heating coil 13 is heated. The control means 15 controls the output of the inverter circuit 14 so as to obtain a preset heating output.
[0021]
When a pan that is large enough to cover the first temperature detection means 16 and the second temperature detection means 17 is placed on the top plate 24 and heated, the magnetic flux density distribution in the middle portion of the heating coil from the central portion of the heating coil. Therefore, as shown in FIG. 3, the temperature of the second temperature detection means 17 (b in FIG. 3) is higher than the temperature of the first temperature detection means 16 (a in FIG. 3).
[0022]
If the second temperature detecting means 17 is heated without being covered with a pan due to a small pan or a pan shift, the second temperature detecting means 17 has almost no heat transfer from the pan, so that as shown in FIG. It becomes lower than the temperature of the first temperature detecting means 16. When the temperature of the first temperature detection means 16 becomes ΔT higher than the temperature of the second temperature detection means 17, the pan determination means 18 reduces the heating output by the inverter circuit 14.
[0023]
When the pot determining means 18 determines that the pot is a small pot, the display means 22 displays that fact.
[0024]
If it is felt that the heating power is insufficient even when the maximum output is set due to the output restriction, the control means 15 cancels the heating output restriction and is set in advance by setting the selection means 19 to invalidate the judgment result of the pan judgment means 18. The inverter circuit 14 is controlled so as to obtain a heating output.
[0025]
Moreover, since the boiling state differs depending on the shape of the pan used, the heating output restriction level is increased or decreased by adjustment from the output restriction adjusting means 20 depending on the state of spilling or bumping during boiling.
[0026]
Further, even when the influence on peripheral devices is large due to unnecessary radiation during heating, the heating output restriction level is increased or decreased by the output restriction adjusting means 20.
[0027]
The setting states in the selection means 19 and the output limit adjustment means 20 are stored in the storage means 21, and once reheating is started in a small pan or pan-shifted state even after the power switch is turned off, before the power switch is turned off. The output is limited with the same setting.
[0028]
As described above, according to the present embodiment, if the pot determining means 18 determines that the pot is small, the heating output is limited. In addition, the influence on peripheral devices due to unnecessary radiation can be suppressed.
[0029]
Moreover, since pot judgment can be made invalid, when a user wants to enlarge the heating output at the time of small pot heating, a thermal power can be increased to the preset heating output.
[0030]
In addition, since the maximum output limit level can be changed, the heating output is optimized according to the state of spilling or bumping in the pan used, or the degree of influence on peripheral devices due to unnecessary radiation during heating. can do.
[0031]
In addition, since the setting state of the output limit can be stored, the output limit can be reproduced in the same state without having to be reset once it is set.
[0032]
Further, since the display is performed when the output is restricted, it is possible to easily identify that the user is in the output restricted state.
[0033]
In the present embodiment, the second temperature detection means 17 is composed of one thermistor. However, a plurality of thermistors are provided at a plurality of locations, and the temperature detected by at least one thermistor is detected by the first temperature detection means 16. The same effect can be obtained even if the pan determining means 18 determines that the pan is a small pan when ΔT is lower than the temperature.
[0034]
Further, even if the first temperature detection means 16 and the second temperature detection means 17 are detected from the infrared radiation temperature other than the thermistor, the same effect can be obtained.
[0035]
Further, although the heating coil 13 has an inner and outer divided shape, the dividing ratio of the inner and outer coils is not particularly limited, and is constituted by a single coil without division, and the second temperature detecting means 17 is constituted by a thermistor and a heat receiving plate. However, the same effect can be obtained.
[0036]
【The invention's effect】
As described above, the present invention changes the output of the inverter circuit according to the shape of the load pan, so that the heating output by the inverter circuit at the time of heating a small pan or pan shift can be limited, and the food in the pan at the time of boiling Spills and bumps can be reduced, and the effects of unnecessary radiation on peripheral devices can be suppressed.
[0037]
Moreover, it becomes possible to set according to the pan shape which uses the restriction | limiting level of the heating output at the time of a small pan or pan deviation heating.
[Brief description of the drawings]
FIG. 1 is a block diagram of an induction heating cooker according to a first embodiment of the present invention. FIG. 2 is a top view of a heating coil portion of the induction heating cooker. FIG. AA 'cross-sectional view of the heating coil portion [Fig. 3] A diagram showing a temperature detected by a temperature detection circuit in the induction heating cooker [Explanation of symbols]
DESCRIPTION OF SYMBOLS 13 Heating coil 14 Inverter circuit 15 Control means 16 1st temperature detection means 17 2nd temperature detection means 18 Pan determination means 19 Selection means 20 Output restriction adjustment means 21 Storage means 22 Display means

Claims (2)

鍋を加熱する加熱コイルと、前記加熱コイルに高周波電流を供給するインバータ回路と、前記インバータ回路の出力を制御する制御手段と、前記加熱コイル中央部の鍋温度を検知する第1の温度検知手段と、前記加熱コイルの外周と内周の中間付近の鍋温度を検知する第2の温度検知手段と、前記第1の温度検知手段の検知温度と前記第2の温度検知手段の検知温度との温度差より鍋状態を判定する鍋判定手段を備え、前記制御手段は、前記鍋判定手段にて前記第1の温度検知手段の検知温度が前記第2の温度検知手段の検知温度より所定以上高いと検知されると前記インバータ回路の出力を制限するとともにインバータ回路の出力制限レベルを調節する出力制限調節手段を備えた誘導加熱調理器。 A heating coil that heats the pot, an inverter circuit that supplies a high-frequency current to the heating coil, a control means that controls the output of the inverter circuit, and a first temperature detection means that detects the pot temperature at the center of the heating coil A second temperature detecting means for detecting a pan temperature near the middle between the outer periphery and the inner periphery of the heating coil, and a detected temperature of the first temperature detecting means and a detected temperature of the second temperature detecting means. A pan determining means for determining a pan state from a temperature difference is provided, and the control means has a temperature detected by the first temperature detecting means higher than the detected temperature of the second temperature detecting means by the pan determining means by a predetermined amount or more. induction heating cooker having an output limit adjustment means for adjusting the output limit level of the inverter circuit while limiting the output of the inverter circuit to be detected as. 鍋判定手段からの信号の有効性を選択する選択手段を備え、制御手段は、前記選択手段にて前記鍋判定手段からの信号を無効と選択された場合にはインバータ回路の出力制限を行わない請求項1に記載の誘導加熱調理器。  Selection means for selecting the validity of the signal from the pan determination means is provided, and the control means does not limit the output of the inverter circuit when the selection means selects the signal from the pan determination means as invalid. The induction heating cooker according to claim 1.
JP2003152495A 2003-05-29 2003-05-29 Induction heating cooker Expired - Fee Related JP4096813B2 (en)

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JPH04125429U (en) * 1991-05-01 1992-11-16 株式会社タムラ製作所 surface mount transformer

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JP4793002B2 (en) * 2006-02-07 2011-10-12 パナソニック株式会社 Induction heating device
JP4933988B2 (en) * 2006-09-01 2012-05-16 パナソニック株式会社 Induction heating cooker
JP4933989B2 (en) * 2006-09-01 2012-05-16 パナソニック株式会社 Induction heating cooker
JP2008235236A (en) * 2007-02-22 2008-10-02 Matsushita Electric Ind Co Ltd Heating cooker and its program
JP4978280B2 (en) * 2007-04-06 2012-07-18 パナソニック株式会社 Induction heating device
WO2011010429A1 (en) * 2009-07-24 2011-01-27 パナソニック株式会社 Cooking appliance
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Publication number Priority date Publication date Assignee Title
JPH04125429U (en) * 1991-05-01 1992-11-16 株式会社タムラ製作所 surface mount transformer

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