JP2008039321A - Heating cooker - Google Patents

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JP2008039321A
JP2008039321A JP2006215976A JP2006215976A JP2008039321A JP 2008039321 A JP2008039321 A JP 2008039321A JP 2006215976 A JP2006215976 A JP 2006215976A JP 2006215976 A JP2006215976 A JP 2006215976A JP 2008039321 A JP2008039321 A JP 2008039321A
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temperature
notification
detected
heating
detected temperature
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Satoshi Higashimatsu
敏 東松
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Paloma Kogyo KK
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Paloma Kogyo KK
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent early extinction simply without causing a cost increase. <P>SOLUTION: After a gas burner is ignited, it is determined in S2 whether or not a temperature T detected by a thermistor has reached an alarm temperature Th 20°C lower than a set temperature Ts. If the detected temperature T is not lower than the alarm temperature Th but is lower than the set temperature Ts, a buzzer is sounded for three seconds in S6 as advance notice of subsequent automatic extinction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、加熱手段により加熱される調理容器の温度を温度検出手段で検出し、その検出温度が設定温度に達すると、加熱手段による加熱を停止させる過熱防止機能を備えたテーブルコンロやビルトインコンロ等の加熱調理器に関する。   The present invention detects a temperature of a cooking container heated by a heating means with a temperature detecting means, and when the detected temperature reaches a set temperature, a table cooker or a built-in stove having an overheat prevention function for stopping heating by the heating means. It relates to a heating cooker.

テーブルコンロ等の加熱調理器においては、天ぷら火災等を防止するために、ガスバーナ等の加熱手段により加熱される調理容器の底面温度をサーミスタ等の温度検出手段で検出し、その検出温度が設定温度(例えば250℃)に達すると、ガスバーナではガス供給路に設けた安全弁を閉弁させて自動消火させる等して加熱手段による加熱を停止させる過熱防止機能を備えたものがよく知られている。
しかし、この過熱防止機能は、調理内容にかかわらず一律に働くため、例えば炒め物や焼き物等の調理を行う場合にも設定温度に達すると自動消火してしまい(いわゆる早切れ)、使い勝手が悪くなってしまう。そこで、特許文献1に開示のように、設定温度より低い維持温度を設定し、検出温度が維持温度に達すると、ガス量を絞ってバーナの火力を小さくし、維持温度を保って早切れを生じさせないように制御することが考えられる。
In a cooking device such as a table stove, in order to prevent a tempura fire or the like, the bottom temperature of the cooking container heated by a heating means such as a gas burner is detected by a temperature detection means such as a thermistor, and the detected temperature is a set temperature When the temperature reaches (for example, 250 ° C.), a gas burner having an overheat prevention function for stopping heating by a heating means by closing a safety valve provided in a gas supply path and automatically extinguishing the fire is well known.
However, since this overheat prevention function works uniformly regardless of the cooking contents, for example, when cooking stir-fried foods, grilled foods, etc., when the set temperature is reached, the fire is automatically extinguished (so-called premature cutting) and the usability is poor. turn into. Therefore, as disclosed in Patent Document 1, a maintenance temperature lower than the set temperature is set, and when the detected temperature reaches the maintenance temperature, the gas power is reduced to reduce the burner thermal power, and the maintenance temperature is maintained to quickly cut the gas. It is conceivable to control so that it does not occur.

特許第3124956号公報Japanese Patent No. 3124956

この場合、早切れの防止によって使い勝手を損なうことはないが、維持温度を保つための制御機能を新たに付与する必要があるため、コストアップに繋がってしまう。   In this case, usability is not impaired by prevention of premature breakage, but it is necessary to newly provide a control function for maintaining the maintenance temperature, leading to an increase in cost.

そこで、本発明は、過熱防止機能を備えたものにおいて、早切れの防止をコストアップを招くことなく簡単に実現できる加熱調理器を提供することを目的としたものである。   Therefore, an object of the present invention is to provide a cooking device which can easily prevent premature breakage without causing an increase in cost in a device having an overheat prevention function.

上記目的を達成するために、請求項1に記載の発明は、制御手段は、検出温度が設定温度よりも低い所定温度に達すると、報知手段を動作させて設定温度への到達を予告するようにしたことを特徴とするものである。
請求項2に記載の発明は、請求項1の目的に加えて、予告報知をより確実に行うために、制御手段は、検出温度の所定温度への到達が所定時間継続した場合にのみ報知手段を動作させる構成としたものである。
請求項3に記載の発明は、請求項2の目的に加えて、予告報知をより適切なタイミングで行うために、制御手段は、所定温度へ到達した検出温度が上り勾配で変化している場合にのみ報知手段を動作させる構成としたものである。
In order to achieve the above object, according to the first aspect of the present invention, when the detected temperature reaches a predetermined temperature lower than the set temperature, the control means operates the notifying means to notify the arrival of the set temperature. It is characterized by that.
According to a second aspect of the present invention, in addition to the object of the first aspect, in order to perform the advance notice more reliably, the control means provides the notice means only when the detection temperature reaches the predetermined temperature for a predetermined time. Is configured to operate.
According to a third aspect of the present invention, in addition to the object of the second aspect, in order to perform the notice of notice at a more appropriate timing, the control means may detect that the detected temperature that has reached the predetermined temperature changes with an upward gradient. Only the alarm means is operated.

請求項1に記載の発明によれば、報知手段によって設定温度への到達を予告するようにしたことで、ユーザーは事前に設定温度への到達を知ることができる。よって、自発的にガス量を調節して弱火にすれば、早切れを起こさせずにそのまま加熱調理を継続でき、使い勝手を損なうことがない。また、検出温度を監視して予告報知を行う制御で足り、自動的に火力を調整する必要がないため、コストアップも生じない。
請求項2に記載の発明によれば、請求項1の効果に加えて、所定時間の継続を待ってから報知手段を動作させるようにしたことで、予告報知をより確実に行うことができる。
請求項3に記載の発明によれば、請求項2の効果に加えて、ユーザーの火力の変更等によって一旦所定温度を超えた検出温度が下降してそのまま所定温度を下回るような場合での無駄な報知を排除でき、より適切なタイミングで予告報知を行うことができる。
According to the first aspect of the present invention, the user can know the arrival of the preset temperature in advance by notifying the arrival of the preset temperature by the notification means. Therefore, if the gas amount is adjusted spontaneously and the heat is reduced to low heat, cooking can be continued without causing premature breakage, and the usability is not impaired. Further, the control for monitoring the detected temperature and giving a notice is sufficient, and it is not necessary to automatically adjust the heating power, so that the cost is not increased.
According to the second aspect of the invention, in addition to the effect of the first aspect, the notification means is operated after waiting for a predetermined time, so that the advance notice can be more reliably performed.
According to the third aspect of the present invention, in addition to the effect of the second aspect, there is a waste in the case where the detected temperature that once exceeds the predetermined temperature is lowered and falls below the predetermined temperature as a result of a change in the user's heating power or the like. Notification can be eliminated, and notification can be made at a more appropriate timing.

以下、本発明の実施の形態を図面に基づいて説明する。
図1は、加熱調理器の一例であるテーブルコンロの制御ブロック図で、テーブルコンロ1は、夫々加熱手段となるガスバーナ3を備えた左右一対のコンロ部2,2を有する。各コンロ部2において、ガスバーナ3へのガス供給路には、点火時の図示しない操作ボタンの押し操作に連動して開弁し、消火時の押し操作に連動して閉弁するメイン弁4と、同じく点火時の操作ボタンの押し操作に連動して開弁するマグネット電磁弁5とが夫々配置されている。マグネット電磁弁5は、制御手段としてのコントローラ6に電気的接続されて、ガスバーナ3の点火後にはコントローラ6からの通電により開弁保持されるようになっている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a control block diagram of a table hob that is an example of a heating cooker. The table hob 1 has a pair of left and right hob units 2 and 2 each having a gas burner 3 serving as a heating means. In each stove section 2, the gas supply path to the gas burner 3 is opened in conjunction with a push operation of an operation button (not shown) at the time of ignition, and a main valve 4 that is closed in conjunction with a push operation at the time of fire extinguishing. Similarly, a magnet electromagnetic valve 5 that is opened in conjunction with the pressing operation of the operation button at the time of ignition is arranged. The magnet electromagnetic valve 5 is electrically connected to a controller 6 as a control means, and is held open by energization from the controller 6 after the gas burner 3 is ignited.

ガスバーナ3の近傍には、点火電極7と熱電対8とが備えられている。点火電極7は、コントローラ6によるイグナイタの作動により連続放電し、熱電対8は、ガスバーナ3の炎に加熱されて発生した起電力をコントローラ6へ出力するものである。また、ガスバーナ3の中央には、温度検出手段となるサーミスタ9を内設した筒状の集熱体10が設けられて、調理容器Pの載置状態でその底部中央に密着可能となっている。このサーミスタ9により検出される検出温度が、調理容器Pの底面温度としてコントローラ6へ出力される。   In the vicinity of the gas burner 3, an ignition electrode 7 and a thermocouple 8 are provided. The ignition electrode 7 is continuously discharged by the operation of the igniter by the controller 6, and the thermocouple 8 outputs the electromotive force generated by being heated by the flame of the gas burner 3 to the controller 6. In addition, a cylindrical heat collector 10 having a thermistor 9 serving as a temperature detecting means is provided at the center of the gas burner 3 so that the gas burner 3 can be in close contact with the center of the bottom of the cooking container P. . The detected temperature detected by the thermistor 9 is output to the controller 6 as the bottom surface temperature of the cooking container P.

コントローラ6は、乾電池11を電源として動作し、周知のマイコンに、マグネット電磁弁5や熱電対8、サーミスタ9等の各制御回路を備えると共に、報知手段となるブザー12を併設しており、ガスバーナ3の点火後は熱電対8の起電力を監視し、失火等による起電力の低下を検知すると、マグネット電磁弁5への通電を停止してマグネット電磁弁5を閉弁させ、ガスの供給を停止させる安全機能を具備している。
また、コントローラ6は、サーミスタ9により得られる底面温度を監視して、底面温度が設定温度(ここでは250℃)に達すると、同様にマグネット電磁弁5を閉弁させてガスバーナ3を自動消火させる過熱防止機能も具備している。以下、この過熱防止機能に係る制御を図3のフローチャートに従って説明する。なお、この制御はコンロ部2の何れでも同じであるため、一方のコンロ部2の場合で説明を行う。
The controller 6 operates using a dry battery 11 as a power source, and includes a control circuit such as a magnet solenoid valve 5, a thermocouple 8, and a thermistor 9 in a well-known microcomputer, and a buzzer 12 serving as a notification unit. After ignition of 3, the electromotive force of the thermocouple 8 is monitored, and when a decrease in electromotive force due to misfire is detected, the energization to the magnet solenoid valve 5 is stopped, the magnet solenoid valve 5 is closed, and the gas supply is stopped. It has a safety function to stop it.
Further, the controller 6 monitors the bottom surface temperature obtained by the thermistor 9, and when the bottom surface temperature reaches a set temperature (250 ° C. in this case), the magnet electromagnetic valve 5 is similarly closed and the gas burner 3 is automatically extinguished. It also has an overheat prevention function. Hereinafter, the control related to the overheat prevention function will be described with reference to the flowchart of FIG. In addition, since this control is the same in any of the stove unit 2, the case of one stove unit 2 will be described.

最初に操作ボタンが点火操作されると、メイン弁4とマグネット電磁弁5とが開弁してガスバーナ3へ燃料ガスが供給される。ここでコントローラ6は、S1でイグナイタを動作させて点火電極7を連続放電させてガスバーナ3に点火させ、この点火を熱電対8で確認すると、マグネット電磁弁5へ通電して開弁保持させる。
この調理中では、S2で、サーミスタ9による検出温度Tが設定温度Tsから20℃低い報知温度Th(本発明の所定温度)以上か否かを判別する。ここで報知温度Th以上であれば、次のS3で、検出温度Tが設定温度Tsに達しているか否かを判別する。設定温度Tsに達していれば、S4でマグネット電磁弁5への通電を停止して自動消火を行うと共に、ブザー12を1秒間鳴動させて自動消火の報知を行う。
When the operation button is initially ignited, the main valve 4 and the magnet electromagnetic valve 5 are opened and the fuel gas is supplied to the gas burner 3. Here, the controller 6 operates the igniter in S1 to continuously discharge the ignition electrode 7 to ignite the gas burner 3. When the ignition is confirmed by the thermocouple 8, the magnet electromagnetic valve 5 is energized and held open.
During cooking, it is determined in S2 whether or not the detected temperature T by the thermistor 9 is equal to or higher than a notification temperature Th (predetermined temperature of the present invention) that is 20 ° C. lower than the set temperature Ts. If the temperature is equal to or higher than the notification temperature Th, it is determined in next S3 whether or not the detected temperature T has reached the set temperature Ts. If the set temperature Ts has been reached, the energization of the magnet solenoid valve 5 is stopped and automatic fire extinguishing is performed in S4, and the buzzer 12 is sounded for 1 second to notify the automatic fire extinguishing.

一方、検出温度Tが報知温度Thに到達していてもS3の判別において設定温度Tsには達していなければ、S5で報知フラグがONか否かを判別する。ここで報知フラグがOFFであれば、S6においてブザー12を3秒間鳴動させると共に、10秒間のタイマーをスタートさせ、報知フラグをONさせる。このブザー12による報知が後に続く自動消火の予告報知となる。   On the other hand, if the detected temperature T has reached the notification temperature Th but has not reached the set temperature Ts in the determination in S3, it is determined in S5 whether or not the notification flag is ON. If the notification flag is OFF, the buzzer 12 is sounded for 3 seconds in S6 and a 10-second timer is started to turn on the notification flag. This notification by the buzzer 12 serves as a notice for automatic fire extinguishing that follows.

S7でタイマーがタイムアップすると、S2で再び検出温度Tが報知温度Thに達しているか否かを判別する。ここで検出温度Tが報知温度Thを下回っていれば、S8で報知フラグをOFFさせてそのままS2で検出温度Tの監視を行う。検出温度Tが依然として報知温度Thに達していれば、次のS3で設定温度Tsへの到達を確認し、設定温度Tsに到達すればS4で自動消火を行う。   When the timer expires in S7, it is determined again in S2 whether or not the detected temperature T has reached the notification temperature Th. If the detected temperature T is below the notification temperature Th, the notification flag is turned off in S8, and the detection temperature T is monitored as it is in S2. If the detected temperature T still reaches the notification temperature Th, it is confirmed that the temperature reaches the set temperature Ts in the next S3, and if it reaches the set temperature Ts, automatic fire extinguishing is performed in S4.

一方、S3の判別で設定温度Tsへの到達がなければ、S5で報知フラグのONを確認する。既に予告報知を行っていればS6で報知フラグがONしているので、S9へ移り、ここでタイマーカウント中の検出温度の変化が上昇勾配か否かを判別する。上昇勾配であれば、S10でブザーを3秒間鳴動させて再び予告報知を行った後、S2で検出温度Tの監視を行い、設定温度Tsに到達すれば自動消火を行う(S3,4)。S9で検出温度Tが上昇勾配で変化していなければ(下降勾配で変化か或いは一定状態)、そのままS2へ戻って検出温度Tの監視を行うことになる。
なお、これらの制御中において、操作ボタンにより消火操作が行われると、マグネット電磁弁5の通電を停止して本ルーチンを終了する。
On the other hand, if the set temperature Ts is not reached in the determination of S3, it is confirmed that the notification flag is ON in S5. If the notice notification has already been performed, the notification flag is turned on in S6, so that the process proceeds to S9, where it is determined whether or not the change in the detected temperature during the timer count is an ascending gradient. If it is an ascending slope, the buzzer is sounded for 3 seconds in S10 and a notice is given again, and then the detected temperature T is monitored in S2, and if the set temperature Ts is reached, automatic fire extinguishing is performed (S3, 4). If the detected temperature T does not change with the rising gradient in S9 (changes with the falling gradient or is in a constant state), the process returns to S2 as it is and the detected temperature T is monitored.
If a fire extinguishing operation is performed with the operation button during these controls, the energization of the magnet solenoid valve 5 is stopped and this routine is terminated.

このように上記形態のテーブルコンロ1によれば、コントローラ6は、検出温度Tが設定温度Tsよりも低い報知温度Thに達すると、ブザー12を動作させて設定温度Tsへの到達を予告するようにしたことで、ユーザーは事前に設定温度Tsへの到達を知ることができる。よって、自発的にガス量を調節して弱火にすれば、早切れを起こさせずにそのまま加熱調理を継続でき、使い勝手を損なうことがない。また、検出温度Tを監視してブザー12による報知を行う制御で足り、コントローラ6が自動的に火力を調整する必要がないため、コストアップも生じない。   Thus, according to the table stove 1 of the said form, when the detected temperature T reaches | attains notification temperature Th lower than preset temperature Ts, it will notify the arrival to preset temperature Ts by operating the buzzer 12. By doing so, the user can know in advance that the set temperature Ts has been reached. Therefore, if the gas amount is adjusted spontaneously and the heat is reduced to low heat, cooking can be continued without causing premature breakage, and the usability is not impaired. Further, the control for monitoring the detected temperature T and notifying by the buzzer 12 is sufficient, and it is not necessary for the controller 6 to automatically adjust the heating power, so that the cost does not increase.

特に、コントローラ6は、検出温度Tの報知温度Thへの到達が所定時間(ここでは10秒間)継続した場合にのみブザー12を動作させるようにしているから、予告報知をより確実に行うことができる。
また、コントローラ6は、報知温度Thへ到達した検出温度Tが上り勾配で変化している場合にのみブザー12を動作させるようにしているから、ユーザーの火力の変更等によって一旦報知温度Thを超えた検出温度Tが下降してそのまま報知温度Thを下回るような場合での無駄な報知を排除でき、より適切なタイミングで予告報知を行うことができる。
In particular, the controller 6 operates the buzzer 12 only when the detected temperature T reaches the notification temperature Th for a predetermined time (here, 10 seconds). it can.
In addition, the controller 6 operates the buzzer 12 only when the detected temperature T that has reached the notification temperature Th changes in an upward gradient. Therefore, the controller 6 once exceeds the notification temperature Th by a change in the user's heating power or the like. Further, it is possible to eliminate useless notification when the detected temperature T decreases and falls below the notification temperature Th as it is, and it is possible to notify the notification at a more appropriate timing.

なお、上記形態では、一回目の予告報知を行った後にタイマーをカウントし、タイムアップ後にも検出温度が報知温度に到達し、且つ上昇勾配で変化している場合にのみ二回目の予告報知を行うようにしているが、タイムアップ後の報知温度の到達確認のみで二回目の予告報知を行っても良い。また、報知温度は設定温度から20℃低いものに限らず、設定温度との温度差は適宜変更可能で、一回目の予告報知の後では報知温度を高く設定することもできる。さらに、タイマーの設定時間も適宜増減可能である。   In the above-mentioned form, the timer is counted after the first notice is given, and the second notice is given only when the detected temperature reaches the notice temperature even after the time is up and is changing with the rising gradient. However, the second notification may be performed only by confirming the arrival of the notification temperature after the time is up. The notification temperature is not limited to 20 ° C. lower than the set temperature, and the temperature difference from the set temperature can be changed as appropriate, and the notification temperature can be set higher after the first notification. Furthermore, the set time of the timer can be appropriately increased or decreased.

一方、報知手段はブザーに限らず、ランプの点灯や点滅に代えたり、ランプとブザーとを併用したりしてもよい。また、一列に並べた複数のランプの点灯数で現在温度を表示して、所定温度の目盛を超えることで予告したり、所定温度を超えると表示色を変えて予告したりすることも可能である。
その他、加熱手段としてはガスバーナ以外に電気ヒータ等も考えられる。また、加熱調理器もテーブルコンロに限らず、ビルトインコンロ等の他のタイプでも本発明は適用可能である。勿論複数のコンロ部のうちの一部に本発明を適用しても差し支えない。
On the other hand, the notification means is not limited to the buzzer, but may be replaced with lighting or blinking of the lamp, or a combination of the lamp and the buzzer. It is also possible to display the current temperature with the number of lighting of multiple lamps arranged in a row and give a notice when the temperature exceeds the specified temperature scale, or when the specified temperature is exceeded, change the display color. is there.
In addition to the gas burner, an electric heater or the like can be considered as the heating means. Further, the cooking device is not limited to a table stove, and the present invention can be applied to other types such as a built-in stove. Of course, the present invention may be applied to some of the plurality of stove sections.

テーブルコンロの概略構成図である。It is a schematic block diagram of a table stove. 過熱防止制御のフローチャートである。It is a flowchart of overheat prevention control.

符号の説明Explanation of symbols

1・・テーブルコンロ、2・・コンロ部、3・・ガスバーナ、4・・メイン弁、5・・マグネット電磁弁、6・・コントローラ、9・・サーミスタ、12・・ブザー。
1 .. Table stove, 2 .. Stove section, 3 .. Gas burner, 4 .. Main valve, 5 .. Magnet solenoid valve, 6 .. Controller, 9 .. Thermistor, 12.

Claims (3)

調理容器を加熱する加熱手段と、前記調理容器の温度を検出する温度検出手段と、その温度検出手段により得られる検出温度を監視する制御手段とを備え、前記制御手段は、前記検出温度が設定温度に達すると前記加熱手段による加熱を停止させる加熱調理器であって、
前記制御手段は、前記検出温度が前記設定温度よりも低い所定温度に達すると、報知手段を動作させて前記設定温度への到達を予告するようにしたことを特徴とする加熱調理器。
A heating means for heating the cooking container, a temperature detection means for detecting the temperature of the cooking container, and a control means for monitoring the detected temperature obtained by the temperature detection means, wherein the control means sets the detected temperature. A heating cooker that stops heating by the heating means when the temperature is reached,
When the detected temperature reaches a predetermined temperature lower than the set temperature, the control means operates the notifying means to notify the arrival of the set temperature.
制御手段は、検出温度の所定温度への到達が所定時間継続した場合にのみ報知手段を動作させるものである請求項1に記載の加熱調理器。   The cooking device according to claim 1, wherein the control means operates the notification means only when the detected temperature reaches the predetermined temperature for a predetermined time. 制御手段は、所定温度へ到達した検出温度が上り勾配で変化している場合にのみ報知手段を動作させるものである請求項2に記載の加熱調理器。
The cooking device according to claim 2, wherein the control means operates the notifying means only when the detected temperature that has reached the predetermined temperature changes in an upward gradient.
JP2006215976A 2006-08-08 2006-08-08 Heating cooker Pending JP2008039321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006215976A JP2008039321A (en) 2006-08-08 2006-08-08 Heating cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006215976A JP2008039321A (en) 2006-08-08 2006-08-08 Heating cooker

Publications (1)

Publication Number Publication Date
JP2008039321A true JP2008039321A (en) 2008-02-21

Family

ID=39174535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006215976A Pending JP2008039321A (en) 2006-08-08 2006-08-08 Heating cooker

Country Status (1)

Country Link
JP (1) JP2008039321A (en)

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