JP4925529B2 - Electromagnetic cooker - Google Patents

Electromagnetic cooker Download PDF

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Publication number
JP4925529B2
JP4925529B2 JP2001283434A JP2001283434A JP4925529B2 JP 4925529 B2 JP4925529 B2 JP 4925529B2 JP 2001283434 A JP2001283434 A JP 2001283434A JP 2001283434 A JP2001283434 A JP 2001283434A JP 4925529 B2 JP4925529 B2 JP 4925529B2
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JP
Japan
Prior art keywords
boiling
temperature
heating coil
induction heating
temperature sensor
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.)
Expired - Fee Related
Application number
JP2001283434A
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Japanese (ja)
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JP2003092178A (en
Inventor
光章 田渕
俊也 西本
正巳 明里
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.)
Sanyo Electric Co Ltd
Original Assignee
Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Consumer Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tottori Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Consumer Electronics Co Ltd filed Critical Tottori Sanyo Electric Co Ltd
Priority to JP2001283434A priority Critical patent/JP4925529B2/en
Publication of JP2003092178A publication Critical patent/JP2003092178A/en
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Publication of JP4925529B2 publication Critical patent/JP4925529B2/en
Anticipated expiration legal-status Critical
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Description

【0001】
【発明の属する技術分野】
本発明は、誘導加熱によって加熱調理を行う電磁調理器に関する。
【0002】
【従来の技術】
一般の電磁調理器では、器具本体の天面に装着した天板の下に誘導加熱コイルを配設すると共に、この誘導加熱コイルの略中心位置に温度センサを配置し、この温度センサによって天板の上に載置された調理容器の温度を検出し、この検出結果に基づいて上記誘導加熱コイルに供給する電力を制御することで、調理容器内に収納された被調理物を設定された温度に加熱している。
【0003】
一方、沸騰検知においては、ガスコンロの様に調理容器の底面に温度センサを接触し、調理容器の温度を直接検出する場合には沸騰のタイミングを比較的正確に検出する事が出来るが、電磁調理器では、天板を介して調理容器の温度を検出する為、沸騰を開始しても天板の温度が上昇せず、沸騰のタイミングを検出できないという問題がある。
【0004】
【発明が解決しようとする課題】
そこで本発明は、沸騰時に使用者が入力操作を行うことで、沸騰時の温度データ等を記憶して沸騰検知を行える様にする事を目的とするものである。
【0005】
【課題を解決するための手段】
本発明は、調理容器を載置する天板と、この天板の下方に装着された誘導加熱コイルと、この加熱コイルの略中心位置に配設した温度センサと、上記誘導加熱コイルに電力を供給するインバータ回路と、このインバータ回路に供給する入力電力を検出する入力電力モニター回路と、この入力電力モニター回路の出力や上記温度センサの出力に基づいて上記インバータ回路を制御する制御回路と、上記誘導加熱コイルによる加熱条件を入力する入力手段と、記憶手段とを備えたものにおいて、上記制御回路を、沸騰時の使用者による入力操作により操作時の温度センサの検出温度を沸騰検知データとして上記記憶手段に記憶すると共に、上記沸騰検知データを、被調理物の水量に応じて複数記憶できる様に構成して成るものである。
【0006】
又本発明は、制御回路を、沸騰検知データとして、加熱開始から入力操作迄の温度センサによる検出温度の変化パターンも記憶する様に構成して成るものである。
【0008】
更に本発明は、制御回路を、記憶データにより沸騰を検知時には報知を行うと共に、誘導加熱コイルの出力を低減する様に構成して成るものである。
【0009】
【発明の実施の形態】
本発明の実施例を、先ず図1に基づき説明すると、1は例えばシステムキッチン等にドロップイン方式にて組み込まれて使用される電磁調理器本体で、上面に耐熱ガラス製の天板2を装着していると共に、この天板の後方に、多数の通気孔3・・を穿孔した吸排気カバー4を着脱自在に装着している。
【0010】
又、上記電磁調理器本体1内の前面右側には、入力手段を構成する操作パネル5を配設し、かつこの操作パネルの左側にはロースタ用の扉6を引き出し自在に配設している。
【0011】
更に、上記天板2の下方には、手前の左右に誘導加熱コイル7,8を配置すると共に、これら加熱コイル間の後方に位置してラジェントヒータ9を内蔵している。
【0012】
一方、上記操作パネル5は、図2にても示す様に主に左右方向に3区画し、右側の上に左右シーソー式の電源スイッチ10、この電源スイッチの下に揚げ物調理を設定する揚げ物キー11、この下に上記右側の誘導加熱コイル8への通電をオン・オフする運転キー12と、設定火力を上げたり下げたりする一対の火力設定キー13,14を配置し、上記揚げ物キー11と運転キー12、火力設定キー13,14にて右コンロを構成する誘導加熱コイル8の動作を設定する様に構成している。
【0013】
又、上記操作パネル5の中央には、上側にロースタ用の運転キー15と火力設定キー16を配置し、これらの下に上記ラジェントヒータ9への通電をオン・オフする運転キー17と同じく一対の火力設定キー18,19を配置し、かつ上記火力設定キー16の上には3個のロースタ用の火力表示ランプ20・・を配置し、火力設定キー16をオン操作する度に、ロースタの火力を、弱−中−強−弱とループ状に順次切換え設定する様に構成している。
【0014】
更に、上記操作パネル5の左側の上には、湯沸キー21を配置すると共に、これの下に上記左側の誘導加熱コイル7への通電をオン・オフする運転キー22と同じく一対の火力設定キー23,24を配置している。
【0015】
尚、上記各運転キー12,15,17,22には、これらに隣接してLEDランプ等で構成した運転ランプ25,26,27,28を配設し、揚げ物キー11には揚げ物ランプ29、湯沸キー21には湯沸ランプ30を同様に隣接して配置している。
【0016】
一方、上記湯沸キー21の上には、後述する水量に応じて記憶された沸騰検知データを表示する、複数の沸騰データ表示ランプ31・・を横並びに配置している。
【0017】
又、上記実施例では、右コンロ用の操作部のみに上記揚げ物キー11を配置し、左コンロ用の操作部のみに湯沸キー21を配置し、揚げ物調理機能は右コンロのみ、湯沸し機能は左コンロのみに設定しているが、これに限定されるものではなく、左右両方のコンロやラジェントヒータ9にこれらの機能を付加しても良い。
【0018】
図3は上記天板2の誘導加熱コイル7,8間の手前に配設した火力表示部で、左コンロ用の誘導加熱コイル7の火力を7段階に表示する7個の火力表示ランプ32・・と、ラジェントヒータ9用の火力表示ランプ33・・と、右コンロ用の誘導加熱コイル8の火力を7段階に表示する7個の火力表示ランプ34・・と、天板2の温度が例えば70度以上の高温に達すると点灯して警告を行う高温ランプ35を配設している。
【0019】
図4は上記誘導加熱コイル7,8等への通電を制御する回路ブロック図の一部を示すもので、商用の200V電源36に上記電源スイッチ10を介して直流変換回路37を接続すると共に、この直流変換回路の出力にインバータ回路38を接続し、かつこのインバータ回路の出力に上記誘導加熱コイル7と、このコイルへ供給される電流値を検出するコイル電流検知手段39との直列回路を接続している。
【0020】
40は主にマイクロコンピュータにて構成した制御回路で、出力ポートに上記インバータ回路38や報知用のブザー41を接続していると共に、入出力ポートに上記操作パネル5や不揮発性メモリ等の記憶手段42を接続し、かつ入力ポートに、上記電源36と直流変換回路37との間に接続した入力電流検知手段43の出力と、上記直流変換回路37の出力に接続した入力電圧検知手段44の出力、上記誘導加熱コイル7の略中央部に配設したサーミスタ等の温度センサ45の出力を接続している。
【0021】
尚、上記温度センサ45は、上記天板2の上に載置される調理容器46の温度を、天板2を介して検出する様に構成している。
【0022】
又、上記入力電流検知手段43と入力電圧検知手段44の出力から入力電力を算出するもので、これらにて入力電力モニター回路を構成している。
【0023】
図5〜図7は、琺瑯鍋等の鉄系鍋を用いて湯沸しを行った場合のタイムチャートで、図5は水量が2.0リットル、図6は同じく1.25リットル、図7は同じく0.5リットルの場合である。
【0024】
そこで、本発明の構成により湯沸しを行う場合の動作を説明すると、天板2の誘導加熱コイル7上方に水を入れた調理容器46を載せて運転キー22をオン操作することで、制御回路40がこれを検出してインバータ回路38を作動し、火力設定キー23,24にて設定された火力にて加熱を開始する。
【0025】
設定火力は火力表示ランプ32・・の点灯状態にて確認できる。
【0026】
加熱を開始して使用者が沸騰状態を確認し、例えば図5のaにて湯沸キー21と火力設定キー23,24を同時にオン操作することで、制御回路40は、オン操作された時の温度センサ45の検出温度と、上記入力電流検知手段43と入力電圧検知手段44の出力から算出した入力電力、設定火力等を沸騰検知データとして記憶手段42に記憶する様に構成している。
【0027】
尚、上記実施例では、沸騰時の温度センサ45の検知温度や入力電力を記憶する様に構成しているが、加熱開始から記憶操作が行われる迄の温度センサ45による検出温度の温度変化パターンも記憶する様に構成しても良く、これによって、温度変化に基づいて温度センサ45の検出温度に補正を加えれば、より正確な沸騰検知を行う事が出来るものである。
【0028】
更に、上記実施例では、記憶した温度変化パターンを沸騰検知のみに使用する場合について説明しているが、これに限定されず、調理後に被調理物を所定温度に保温する保温機能に用いる保温温度の補正や、煮込み調理時の煮込み温度の補正、炒め物調理や揚げ物調理等の高温調理時の焦げ付き防止用の温度制御に使用しても良い。
【0029】
又、上記沸騰検知データの記憶に際しては、上記図5〜図7にて示す様に、加熱水量によって温度センサ45の検出温度と調理容器の温度との特性が大きく相違する為、例えば湯沸キー21を一度オンすると沸騰データ表示ランプ31・・の「1」が点灯し、以降押す度に「2」−「3」−「4」−「1」と順次点灯し、希望の位置で湯沸キー21と火力設定キー23,24を同時にオン操作することで、沸騰検知データを記憶することで、例えば調理容器の種類や水量に応じて複数のデータを記憶する事が出来るものである。
【0030】
一方、上記の操作により記憶させた沸騰検知データを利用して沸騰検知を行う場合には、湯沸キー21を押して沸騰検知モードを選択した後、運転キー22をオン操作することで、記憶された沸騰検知データに基づいてインバータ回路38を制御し、温度センサ45の検出温度や入力電力が沸騰検知データに到達すると、ブザー41を作動して報知を行うと共に、インバータ回路38を作動して誘導加熱コイル7への電力供給を停止したり、出力を低減する。
【0031】
又、複数の沸騰データを記憶した場合には、例えば湯沸キー21をオン操作する度に沸騰データ表示ランプ31・・を順次点灯して何れかを選択した後、運転キー22をオン操作すれば選択されたデータで沸騰検知を行う様に構成すれば良く、この時、例えば「1」のデータを水量が最も少ない時に設定し、「4」を水量が多い時に設定すれば、選択時の操作性を向上出来るものである。
【0032】
尚、上記沸騰検知データの記憶時の操作や、沸騰検知モードでの運転開始操作は、上記実施例に限定されるものではなく、湯沸キー21を設けなくても、他のキーの複数同時押し等によって操作を行う様に構成しても良い。
【0033】
【発明の効果】
本発明の構成により、沸騰時に使用者が入力操作を行うことで、その時の温度センサの検出温度と入力電力を沸騰検知データとして記憶する様に構成したことで、その器具や使用している調理器具の特性に合致した沸騰温度の検出を行う事が出来るものである。
又、沸騰検知データを水量に応じて複数記憶する様に構成することで、温度センサの検出温度と調理容器の温度差が大きい少量の湯沸し時においても、より正確な沸騰検知を行う事が出来るものである。
【0034】
又本発明の構成により、沸騰検知データとして、加熱開始から入力操作迄の温度変化パターンも記憶する様に構成したことで、この変化パターンに基づいて沸騰検知温度を補正すれば、より正確な沸騰検知を行う事が出来るものである。
【0036】
更に本発明の構成により、記憶した沸騰検知データに基づいて沸騰を検出時には、ブザー等により報知を行うと共に、誘導加熱コイルの出力を低減する様に構成することで、沸騰による煮こぼれや、電力の浪費等を防止する事が出来るものである。
【図面の簡単な説明】
【図1】本発明による実施例を示す斜視図である。
【図2】同じく操作パネルの正面図である。
【図3】同じく天板の一部拡大による平面図である。
【図4】同じく制御回路の実施例を示すブロック図である。
【図5】同じく湯沸し時の温度特性を示すタイムチャートである。
【図6】同じく湯沸し時の温度特性を示すタイムチャートである。
【図7】同じく湯沸し時の温度特性を示すタイムチャートである。
【符号の説明】
2 天板
5 操作パネル
7 誘導加熱コイル
8 誘導加熱コイル
38 インバータ回路
40 制御回路
41 ブザー
43 入力電流検知手段
44 入力電圧検知手段
45 温度センサ
46 調理容器
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic cooker that performs cooking by induction heating.
[0002]
[Prior art]
In a general electromagnetic cooker, an induction heating coil is disposed under the top plate mounted on the top surface of the appliance body, and a temperature sensor is disposed at a substantially central position of the induction heating coil. The temperature of the cooking container stored in the cooking container is set by detecting the temperature of the cooking container placed on the top and controlling the power supplied to the induction heating coil based on the detection result. Is heated.
[0003]
On the other hand, in boiling detection, when a temperature sensor is brought into contact with the bottom surface of a cooking vessel like a gas stove and the temperature of the cooking vessel is directly detected, the boiling timing can be detected relatively accurately. Since the temperature of the cooking container is detected through the top plate, the temperature of the top plate does not rise even when boiling starts, and the timing of boiling cannot be detected.
[0004]
[Problems to be solved by the invention]
In view of the above, an object of the present invention is to make it possible to detect boiling by storing temperature data at the time of boiling, etc., by a user performing an input operation during boiling.
[0005]
[Means for Solving the Problems]
The present invention includes a top plate on which a cooking container is placed, an induction heating coil mounted below the top plate, a temperature sensor disposed at a substantially central position of the heating coil, and power to the induction heating coil. An inverter circuit to be supplied; an input power monitor circuit for detecting input power supplied to the inverter circuit; a control circuit for controlling the inverter circuit based on an output of the input power monitor circuit and an output of the temperature sensor; In an apparatus including an input means for inputting a heating condition by an induction heating coil and a storage means, the control circuit is configured to detect the temperature detected by a temperature sensor during operation by an input operation by a user during boiling as boiling detection data. While being stored in the storage means, a plurality of the above boiling detection data can be stored in accordance with the amount of water of the object to be cooked.
[0006]
In the present invention, the control circuit is configured to store a change pattern of the temperature detected by the temperature sensor from the start of heating to the input operation as boiling detection data.
[0008]
Further, according to the present invention, the control circuit is configured to notify when boiling is detected from stored data and to reduce the output of the induction heating coil.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes an electromagnetic cooker body which is used by being incorporated into a system kitchen or the like by a drop-in method, and a top plate 2 made of heat-resistant glass is mounted on the upper surface. In addition, an intake / exhaust cover 4 having a large number of ventilation holes 3 is detachably mounted behind the top plate.
[0010]
An operation panel 5 constituting input means is disposed on the right side of the front surface of the electromagnetic cooker body 1, and a roaster door 6 is disposed on the left side of the operation panel so as to be freely drawn out. .
[0011]
Further, below the top plate 2, induction heating coils 7 and 8 are arranged on the right and left sides of the front side, and a radial heater 9 is incorporated in the rear of the heating coils.
[0012]
On the other hand, as shown in FIG. 2, the operation panel 5 is mainly divided into three sections in the left and right direction, a right and left seesaw type power switch 10 on the right side, and a fried food key for setting fried food cooking under the power switch. 11. Under this, an operation key 12 for turning on / off the energization of the right induction heating coil 8 and a pair of heating power setting keys 13, 14 for raising and lowering the set heating power are arranged. The operation key 12 and the heating power setting keys 13 and 14 are configured to set the operation of the induction heating coil 8 constituting the right stove.
[0013]
In the center of the operation panel 5, an operation key 15 for a roaster and a heating power setting key 16 are arranged on the upper side, and the operation key 17 for turning on / off the energization of the radial heater 9 is provided below them. A pair of thermal power setting keys 18 and 19 are disposed, and three thermal power indicator lamps 20 for the roaster are disposed on the thermal power setting key 16. Each time the thermal power setting key 16 is turned on, the roaster The fire power is configured to be switched and set in a loop from weak-medium-strong-weak.
[0014]
Furthermore, a hot water key 21 is arranged on the left side of the operation panel 5 and a pair of heating power settings is set below the operation key 22 for turning on / off the energization of the left induction heating coil 7 below the hot water key 21. Keys 23 and 24 are arranged.
[0015]
The operation keys 12, 15, 17, and 22 are provided with operation lamps 25, 26, 27, and 28, which are formed of LED lamps or the like, and the fried food key 11 has fried food lamps 29, A water heater lamp 30 is similarly disposed adjacent to the water heater key 21.
[0016]
On the other hand, a plurality of boiling data display lamps 31... For displaying boiling detection data stored in accordance with the amount of water described later are arranged side by side on the hot water key 21.
[0017]
In the above embodiment, the deep-fried food key 11 is arranged only in the right stove operating section, the hot water key 21 is arranged only in the left stove operating section, the deep-fried cooking function is only the right stove, and the hot water function is Although only the left stove is set, the present invention is not limited to this, and these functions may be added to both the left and right stove and the radial heater 9.
[0018]
FIG. 3 shows a thermal power display unit disposed in front of the induction heating coils 7 and 8 of the top plate 2, and seven thermal power display lamps 32 for displaying the thermal power of the induction heating coil 7 for the left stove in seven stages. The thermal power display lamp 33 for the radial heater 9, the seven thermal power display lamps 34 for displaying the thermal power of the induction heating coil 8 for the right stove in seven stages, and the temperature of the top plate 2 are, for example, A high temperature lamp 35 is provided to turn on and warn when a high temperature of 70 degrees or more is reached.
[0019]
FIG. 4 shows a part of a circuit block diagram for controlling energization to the induction heating coils 7, 8, etc., and a DC conversion circuit 37 is connected to a commercial 200 V power source 36 via the power switch 10, An inverter circuit 38 is connected to the output of the DC conversion circuit, and a series circuit of the induction heating coil 7 and coil current detection means 39 for detecting the current value supplied to the coil is connected to the output of the inverter circuit. is doing.
[0020]
Reference numeral 40 denotes a control circuit mainly composed of a microcomputer. The inverter circuit 38 and the alarm buzzer 41 are connected to the output port, and the input / output port is a storage means such as the operation panel 5 or a nonvolatile memory. 42, and the output of the input current detection means 43 connected between the power source 36 and the DC conversion circuit 37 to the input port and the output of the input voltage detection means 44 connected to the output of the DC conversion circuit 37. The output of a temperature sensor 45 such as a thermistor disposed at a substantially central portion of the induction heating coil 7 is connected.
[0021]
The temperature sensor 45 is configured to detect the temperature of the cooking container 46 placed on the top plate 2 via the top plate 2.
[0022]
Further, the input power is calculated from the outputs of the input current detection means 43 and the input voltage detection means 44, and these constitute an input power monitor circuit.
[0023]
5 to 7 are time charts in the case of performing boiling with an iron-based pan such as a pot, FIG. 5 shows a water volume of 2.0 liters, FIG. 6 shows a 1.25 liters, and FIG. This is the case for 0.5 liters.
[0024]
Therefore, the operation in the case of boiling water by the configuration of the present invention will be described. By putting the cooking container 46 filled with water above the induction heating coil 7 of the top plate 2 and turning on the operation key 22, the control circuit 40 is turned on. Detecting this, the inverter circuit 38 is operated, and heating is started with the thermal power set by the thermal power setting keys 23 and 24.
[0025]
The set thermal power can be confirmed by the lighting state of the thermal power display lamp 32.
[0026]
When heating is started and the user confirms the boiling state, for example, when the hot water key 21 and the thermal power setting keys 23 and 24 are simultaneously turned on in FIG. 5a, the control circuit 40 is turned on. The temperature detected by the temperature sensor 45, the input power calculated from the outputs of the input current detection means 43 and the input voltage detection means 44, the set heating power, etc. are stored in the storage means 42 as boiling detection data.
[0027]
In the above-described embodiment, the temperature detected by the temperature sensor 45 during boiling and the input power are stored, but the temperature change pattern of the temperature detected by the temperature sensor 45 from the start of heating until the storage operation is performed. May also be stored, and by this, if the temperature detected by the temperature sensor 45 is corrected based on the temperature change, more accurate boiling detection can be performed.
[0028]
Furthermore, although the said Example demonstrates the case where the memorize | stored temperature change pattern is used only for boiling detection, it is not limited to this, The heat retention temperature used for the heat retention function which heats a to-be-cooked object to predetermined temperature after cooking It may be used for correction of simmering, correction of simmering temperature during simmering cooking, temperature control for preventing scorching during high temperature cooking such as frying and fried cooking.
[0029]
Further, when storing the boiling detection data, as shown in FIGS. 5 to 7, the characteristics of the temperature detected by the temperature sensor 45 and the temperature of the cooking container are greatly different depending on the amount of heated water. When “21” is turned on once, “1” of the boiling data display lamp 31... Illuminates, and each time it is pressed, “2”-“3”-“4”-“1” is sequentially lit and By simultaneously turning on the key 21 and the heating power setting keys 23 and 24, the boiling detection data is stored, so that, for example, a plurality of data can be stored according to the type of cooking container and the amount of water.
[0030]
On the other hand, when performing boiling detection using the boiling detection data stored by the above operation, the boiling key 21 is pressed to select the boiling detection mode, and then the operation key 22 is turned on to store the boiling detection data. The inverter circuit 38 is controlled based on the boiling detection data, and when the temperature detected by the temperature sensor 45 or the input power reaches the boiling detection data, the buzzer 41 is activated to notify, and the inverter circuit 38 is activated for induction. The power supply to the heating coil 7 is stopped or the output is reduced.
[0031]
When a plurality of boiling data is stored, for example, each time the hot water key 21 is turned on, the boiling data display lamps 31 are sequentially turned on to select one of them and then the operation key 22 is turned on. In this case, for example, the data “1” is set when the amount of water is the smallest and the value “4” is set when the amount of water is large. The operability can be improved.
[0032]
The operation for storing the boiling detection data and the operation for starting the operation in the boiling detection mode are not limited to the above-described embodiment. You may comprise so that operation may be performed by pushing.
[0033]
【Effect of the invention】
According to the configuration of the present invention, when the user performs an input operation at the time of boiling, it is configured to store the detection temperature and input power of the temperature sensor at that time as boiling detection data. It is possible to detect the boiling temperature that matches the characteristics of the appliance.
In addition, by configuring a plurality of boiling detection data according to the amount of water, more accurate boiling detection can be performed even when boiling a small amount of water where the temperature difference between the temperature sensor and the cooking container is large. Is.
[0034]
Further, according to the configuration of the present invention, the temperature change pattern from the start of heating to the input operation is also stored as boiling detection data. If the boiling detection temperature is corrected based on this change pattern, more accurate boiling is achieved. It can be detected.
[0036]
Further, according to the configuration of the present invention, when boiling is detected based on the stored boiling detection data, notification is made by a buzzer or the like, and the output of the induction heating coil is reduced, so that boiling due to boiling or electric power is reduced. It is possible to prevent waste of waste.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment according to the present invention.
FIG. 2 is a front view of the operation panel.
FIG. 3 is a plan view of the top plate that is partially enlarged.
FIG. 4 is a block diagram showing an embodiment of a control circuit.
FIG. 5 is a time chart showing temperature characteristics during boiling of water.
FIG. 6 is a time chart showing temperature characteristics during boiling of water.
FIG. 7 is a time chart showing temperature characteristics during boiling of water.
[Explanation of symbols]
2 Top plate 5 Operation panel 7 Induction heating coil 8 Induction heating coil 38 Inverter circuit 40 Control circuit 41 Buzzer 43 Input current detection means 44 Input voltage detection means 45 Temperature sensor 46 Cooking container

Claims (3)

調理容器を載置する天板と、この天板の下方に装着された誘導加熱コイルと、この加熱コイルの略中心位置に配設した温度センサと、上記誘導加熱コイルに電力を供給するインバータ回路と、このインバータ回路に供給する入力電力を検出する入力電力モニター回路と、この入力電力モニター回路の出力や上記温度センサの出力に基づいて上記インバータ回路を制御する制御回路と、上記誘導加熱コイルによる加熱条件を入力する入力手段と、記憶手段とを備えたものにおいて、上記制御回路を、沸騰時の使用者による入力操作により操作時の温度センサの検出温度を沸騰検知データとして上記記憶手段に記憶すると共に、上記沸騰検知データを、被調理物の水量に応じて複数記憶できる様に構成した事を特徴とする電磁調理器。A top plate on which the cooking container is placed, an induction heating coil mounted below the top plate, a temperature sensor disposed substantially at the center of the heating coil, and an inverter circuit for supplying power to the induction heating coil An input power monitor circuit that detects input power supplied to the inverter circuit, a control circuit that controls the inverter circuit based on the output of the input power monitor circuit and the output of the temperature sensor, and the induction heating coil In an apparatus provided with an input means for inputting a heating condition and a storage means, the control circuit stores the detected temperature of the temperature sensor at the time of operation by the user 's input operation at the time of boiling as boiling detection data in the storage means. In addition, an electromagnetic cooker characterized in that a plurality of the boiling detection data can be stored according to the amount of water of the object to be cooked. 上記制御回路を、上記沸騰検知データとして、加熱開始から入力操作迄の上記温度センサによる検出温度の変化パターンも記憶する様に構成した事を特徴とする、上記請求項1に記載の電磁調理器。  The electromagnetic cooker according to claim 1, wherein the control circuit is configured to store a change pattern of a temperature detected by the temperature sensor from the start of heating to an input operation as the boiling detection data. . 上記制御回路を、上記記憶データにより沸騰を検知時には、報知を行うと共に上記誘導加熱コイルの出力を低減する様に構成した事を特徴とする、上記請求項1または2に記載の電磁調理器。  The electromagnetic cooker according to claim 1 or 2, wherein the control circuit is configured to notify when boiling is detected from the stored data and to reduce the output of the induction heating coil.
JP2001283434A 2001-09-18 2001-09-18 Electromagnetic cooker Expired - Fee Related JP4925529B2 (en)

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JPH01181818A (en) * 1988-01-11 1989-07-19 Tiger Vacuum Bottle Co Ltd Microcomputer controlled electric pot
JP2620634B2 (en) * 1988-04-20 1997-06-18 三洋電機株式会社 Induction heating cooker
JPH01292787A (en) * 1988-05-19 1989-11-27 Matsushita Electric Ind Co Ltd Boiling detection device of heating cooker
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