JP6998227B2 - Cooker - Google Patents

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JP6998227B2
JP6998227B2 JP2018023921A JP2018023921A JP6998227B2 JP 6998227 B2 JP6998227 B2 JP 6998227B2 JP 2018023921 A JP2018023921 A JP 2018023921A JP 2018023921 A JP2018023921 A JP 2018023921A JP 6998227 B2 JP6998227 B2 JP 6998227B2
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top plate
heating
light receiving
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reference level
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JP2019138585A (en
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紳一朗 秦
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Rinnai Corp
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Description

本発明は、加熱調理器、特に、天板上に載置された被加熱物を加熱する加熱手段を備えた加熱調理器に関する。 The present invention relates to a cooking cooker, particularly a cooking cooker provided with a heating means for heating an object to be heated placed on a top plate.

従来、天板上に載置された鍋やフライパン等の被加熱物を加熱する加熱手段を備えた加熱調理器において、天板上の所定領域に使用者の手や衣服などの物体が接近したことを赤外線により検出する物体検出センサを備え、加熱手段の出力がなされた状態で、使用者の手や衣服が天板上の所定領域に接近した場合、加熱手段の出力を一定以下に制限するように構成されたものが知られている(例えば、特許文献1参照)。 Conventionally, in a cooking device equipped with a heating means for heating an object to be heated such as a pot or a frying pan placed on a top plate, an object such as a user's hand or clothes approaches a predetermined area on the top plate. It is equipped with an object detection sensor that detects this with infrared rays, and when the user's hands or clothes approach a predetermined area on the top plate while the output of the heating means is being made, the output of the heating means is limited to a certain level or less. It is known that it is configured as such (see, for example, Patent Document 1).

特開2016-188714号公報Japanese Unexamined Patent Publication No. 2016-188714

このものでは、使用者の手や衣服が加熱手段の配設部周辺に接近したことを迅速且つ正確に検出できるよう、天板の下面側に物体検出センサが配設されており、物体検出センサによる赤外線の発光および受光は、天板に設けられた透光部を通して行われる。しかしながら、本発明者は、この種の加熱調理器の場合、被加熱物の重みなどによって天板が僅かに撓んだだけでも、物体検出センサと透光部との距離が変動して物体検出センサによる赤外線の受光レベルが変動し、物体検出センサによって検出された物体の位置と実際の物体の位置との間に誤差が生じることを知見した。このように検出誤差が生じると、天板上面に使用者の手や衣服が接近しても、適切に加熱手段の出力制限がなされない虞がある。 In this device, an object detection sensor is provided on the lower surface side of the top plate so that the user's hand or clothes can quickly and accurately detect that the user's hand or clothes have approached the vicinity of the arrangement portion of the heating means. Infrared light emission and light reception by the above are performed through a translucent portion provided on the top plate. However, in the case of this type of heating cooker, the present inventor detects an object because the distance between the object detection sensor and the translucent part fluctuates even if the top plate is slightly bent due to the weight of the object to be heated or the like. It was found that the level of infrared light received by the sensor fluctuates, causing an error between the position of the object detected by the object detection sensor and the position of the actual object. If a detection error occurs in this way, there is a risk that the output of the heating means will not be appropriately restricted even if the user's hands or clothes approach the upper surface of the top plate.

本発明は、上記課題を鑑みてなされたものであり、その目的は、天板上の所定領域に物体が接近したことを検出する物体検出センサを備えた加熱調理器において、物体検出精度の向上を図ることにある。 The present invention has been made in view of the above problems, and an object of the present invention is to improve the object detection accuracy in a cooking device provided with an object detection sensor that detects that an object has approached a predetermined area on the top plate. Is to plan.

本発明は、前提となる加熱調理器として、器具本体の上面部を構成する天板と、天板上に載置された被加熱物を加熱する加熱手段と、天板に設けられた透光部の下面側に設けられ、天板上の物体の動きを検出する物体検出手段と、天板上の所定領域に物体が接近したことが物体検出手段によって検出された場合に、加熱手段の出力を制限する制御手段とを備えた加熱調理器であって、物体検出手段は、透光部を通して天板上へ検出光を発光する発光手段と、天板上の物体に反射し透光部を通して戻ってくる検出光を受光する受光手段とを備え、制御手段は、物体検出手段による検出光の受光レベルが基準レベルから変化した度合に基づいて物体が前記所定領域に接近したか否かを判定する接近判定手段と、所定条件を満たした場合に、前記基準レベルを補正する基準補正手段とを備えたものである。 In the present invention, as a prerequisite heating cooker, a top plate constituting the upper surface of the instrument body, a heating means for heating an object to be heated placed on the top plate, and a translucent light provided on the top plate. The output of the object detecting means provided on the lower surface side of the portion and detecting the movement of the object on the top plate, and the output of the heating means when the object detecting means detects that the object has approached a predetermined area on the top plate. It is a heating cooker provided with a control means for limiting the number of objects, and the object detection means is a light emitting means that emits detected light onto the top plate through a translucent part and a light emitting means that reflects the object on the top plate and passes through the translucent part. A light receiving means for receiving the returning detection light is provided, and the control means determines whether or not the object has approached the predetermined region based on the degree to which the light receiving level of the detected light by the object detecting means has changed from the reference level. It is provided with an approach determination means for correcting the reference level and a reference correction means for correcting the reference level when a predetermined condition is satisfied.

上記加熱調理器によれば、天板の撓み度合が変化しても、補正された基準レベルに基づいて受光レベルの変化度合を判定できるから、天板上の所定領域に物体が接近したことを正確に検出することが可能である。 According to the above-mentioned cooking device, even if the degree of bending of the top plate changes, the degree of change in the light receiving level can be determined based on the corrected reference level, so that the object has approached a predetermined area on the top plate. It is possible to detect it accurately.

本発明は、上記加熱調理器において、天板上の所定の加熱位置に被加熱物が載置されているか否かを検出する被加熱物検出手段を備え、基準補正手段は、所定条件として被加熱物の載置又は撤去が被加熱物検出手段によって検出された場合に、前記基準レベルを補正する。 The present invention comprises a heated object detecting means for detecting whether or not a heated object is placed at a predetermined heating position on a top plate in the above-mentioned cooking cooker, and the reference correction means is subject to a predetermined condition. When the placement or removal of the heated object is detected by the heated object detecting means, the reference level is corrected.

このものでは、被加熱物の載置又は撤去に起因して天板の撓み度合が変化しても、その際に補正される基準レベルに基づいて受光レベルの変化度合を判定できるから、天板上の所定領域に物体が接近したことを正確に検出することが可能である。 In this case, even if the degree of bending of the top plate changes due to the placement or removal of the object to be heated, the degree of change in the light receiving level can be determined based on the reference level corrected at that time. It is possible to accurately detect that an object has approached the predetermined area above.

好ましくは、上記加熱調理器において、基準補正手段は、所定条件として加熱手段の出力がなされた場合に、前記基準レベルを補正する。 Preferably, in the cooking cooker, the reference correction means corrects the reference level when the output of the heating means is output as a predetermined condition.

加熱手段の出力がなされる場合、天板上に被加熱物が載置されている可能性が高い。しかしながら、このものでは、加熱手段の出力がなされたときに、被加熱物の重みで天板に撓みが生じていても、その際に補正される基準レベルに基づいて受光レベルの変化度合を判定できるから、天板上の所定領域に物体が接近したことを正確に検出することが可能である。 When the output of the heating means is made, there is a high possibility that the object to be heated is placed on the top plate. However, in this case, even if the top plate is bent due to the weight of the object to be heated when the heating means is output, the degree of change in the light receiving level is determined based on the reference level corrected at that time. Therefore, it is possible to accurately detect that an object has approached a predetermined area on the top plate.

好ましくは、上記加熱調理器において、受光レベルが基準レベルから所定以上変化した変動状態が所定時間以上継続したか否かを判定する変動状態判定手段を備え、基準補正手段は、所定条件として前記変動状態が所定時間以上継続した場合に、前記基準レベルを補正する。 Preferably, in the cooking cooker, the fluctuation state determining means for determining whether or not the fluctuation state in which the light receiving level has changed from the reference level by a predetermined time or more has continued for a predetermined time or more is provided, and the reference correction means has the fluctuation as a predetermined condition. When the state continues for a predetermined time or longer, the reference level is corrected.

このものでは、天板上に被加熱物が載置されているか否かを検出する被加熱物検出手段を備えていない加熱調理器であっても、被加熱物の重みで天板に撓みが生じている場合は、その際に補正される基準レベルに基づいて受光レベルの変化度合を判定できる。よって、天板上の所定領域に物体が接近したことを正確に検出することが可能である。 In this case, even if the cooking cooker does not have a heating object detecting means for detecting whether or not the object to be heated is placed on the top plate, the weight of the object to be heated causes the top plate to bend. If it occurs, the degree of change in the light receiving level can be determined based on the reference level corrected at that time. Therefore, it is possible to accurately detect that an object has approached a predetermined area on the top plate.

好ましくは、上記加熱調理器において、基準補正手段は、所定条件として器具の電源がオンになった場合に、前記基準レベルを補正する。 Preferably, in the cooker, the reference correction means corrects the reference level when the appliance is turned on as a predetermined condition.

このものでは、器具の電源がオンにされたときに天板に撓みが生じていても、その際に補正される基準レベルに基づいて受光レベルの変化度合を判定できるから、天板上の所定領域に物体が接近したことを正確に検出することが可能である。 In this case, even if the top plate is bent when the power of the appliance is turned on, the degree of change in the light receiving level can be determined based on the reference level corrected at that time. It is possible to accurately detect that an object has approached the area.

以上のように、本発明によれば、天板上の所定領域に物体が接近したことを正確に検出することができるから、被加熱物の重みなどによって天板に撓みが生じていても、物体の接近に応じて適切に加熱手段の出力を制限できる。 As described above, according to the present invention, it is possible to accurately detect that an object has approached a predetermined region on the top plate, so that even if the top plate is bent due to the weight of the object to be heated or the like. The output of the heating means can be appropriately limited according to the approach of the object.

図1は、本発明の実施の形態に係る加熱調理器の概略斜視図である。FIG. 1 is a schematic perspective view of a cooking device according to an embodiment of the present invention. 図2は、本発明の実施の形態に係る加熱調理器の概略上方視図である。FIG. 2 is a schematic upward view of the cooking device according to the embodiment of the present invention. 図3は、本発明の実施の形態に係る加熱調理器の概略構成図である。FIG. 3 is a schematic configuration diagram of a cooking device according to an embodiment of the present invention. 図4は、本発明の実施の形態に係る加熱調理器の物体検出センサの概略構成図である。FIG. 4 is a schematic configuration diagram of an object detection sensor of a cooking device according to an embodiment of the present invention. 図5は、本発明の実施の形態に係る加熱調理器における物体に対する物体検出センサからの距離と受光レベルとの関係を示す表である。FIG. 5 is a table showing the relationship between the distance from the object detection sensor and the light receiving level with respect to the object in the cooking device according to the embodiment of the present invention.

次に、上記した本発明を実施するための形態について、添付図面を参照しながら詳述する。 Next, the above-described embodiment of the present invention will be described in detail with reference to the accompanying drawings.

図1から図3に示すように、本発明の実施の形態に係る加熱調理器1は、キッチンのカウンタトップ4に開設された取付口40に落とし込み状態で設置される所謂ビルトインコンロであり、器具本体10の上面部を構成する天板11の上面側に、加熱手段として複数(ここでは、3つ)のコンロバーナ21A,21B,21Cが配設されている。 As shown in FIGS. 1 to 3, the cooking cooker 1 according to the embodiment of the present invention is a so-called built-in stove, which is installed in a state of being dropped into a mounting port 40 opened in a counter top 4 of a kitchen, and is an appliance. A plurality of (here, three) stove burners 21A, 21B, 21C are arranged as heating means on the upper surface side of the top plate 11 constituting the upper surface portion of the main body 10.

カウンタトップ4の前縁部41側に面する器具本体10の側面部(以下、「本体前面」という)12には、加熱調理器1の電源をオンオフするための電源スイッチ13と、上記各コンロバーナ21A,21B,21Cの点火や消火、火力の切替を行うための点消火操作子14A,14B,14Cとが設けられている(図1および図3参照)。尚、本明細書では、本体前面12を加熱調理器1の正面とし、器具本体10を本体前面12側から見たときの奥行き方向を前後方向、幅方向を左右方向、高さ方向を上下方向という。 On the side surface portion (hereinafter referred to as “main body front surface”) 12 of the appliance main body 10 facing the front edge portion 41 side of the counter top 4, a power switch 13 for turning on / off the power of the cooking cooker 1 and each of the above stoves Point fire extinguishing operators 14A, 14B, 14C for igniting, extinguishing, and switching the thermal power of the burners 21A, 21B, 21C are provided (see FIGS. 1 and 3). In the present specification, the front surface 12 of the main body is the front surface of the cooking cooker 1, the depth direction when the main body 10 is viewed from the front surface 12 side of the main body is the front-rear direction, the width direction is the left-right direction, and the height direction is the up-down direction. That is.

本実施の形態では、天板11の左前寄りの位置に標準火力のコンロバーナ(以下、「左バーナ」ともいう)21Aが配設され、天板11の右前寄りの位置に標準バーナ21Aより最大火力が大きい大火力のコンロバーナ(以下、「右バーナ」ともいう)21Bが配設され、天板11の中央後寄りの位置に左バーナ21Aより最大火力が小さい小火力のコンロバーナ(以下、「後バーナ」ともいう)21Cが配設されている。コンロバーナ21A,21B,21Cはそれぞれ、器具本体10内に組み込まれたバルブユニット20(図3参照)を介して燃料ガスが供給され、その燃料ガスと空気の混合ガスを燃焼させるように構成されている。 In the present embodiment, a standard thermal power stove burner (hereinafter, also referred to as “left burner”) 21A is arranged at a position closer to the left front of the top plate 11, and is maximum at a position closer to the right front of the top plate 11 than the standard burner 21A. A large-heated stove burner (hereinafter, also referred to as "right burner") 21B having a large thermal power is arranged, and a small-heated stove burner (hereinafter, also referred to as "right burner") having a smaller maximum thermal power than the left burner 21A is arranged at a position near the center of the top plate 11. 21C (also referred to as "rear burner") is arranged. Each of the control burners 21A, 21B, and 21C is configured to be supplied with fuel gas via a valve unit 20 (see FIG. 3) incorporated in the instrument body 10 and burn a mixed gas of the fuel gas and air. ing.

天板11の上面における各コンロバーナ21A,21B,21Cの配設位置にはそれぞれ、鍋やフライパン等の被加熱物(以下、「調理具」という)5を支持する五徳15が載置されている。 At the arrangement positions of the stove burners 21A, 21B, and 21C on the upper surface of the top plate 11, a trivet 15 that supports a heated object (hereinafter referred to as "cooking tool") 5 such as a pan or a frying pan is placed. There is.

コンロバーナ21A,21B,21Cの中央部には、五徳15上に載置された調理具5の底部に接触し、調理具5の温度状態を検出する鍋底温度センサ22A,22B,22Cが立設されている。鍋底温度センサ22A,22B,22Cは、器具本体10内にて上下摺動可能に支持されており、対応する五徳15の上部に調理具5が載置されていない状態では、五徳15より上方へ突出した位置にて保持され、対応する五徳15の上部に調理具5が載置されることで、調理具5の重みによって押し下げられる。 At the center of the stove burners 21A, 21B, 21C, pot bottom temperature sensors 22A, 22B, 22C that come into contact with the bottom of the cooking utensil 5 placed on the trivet 15 and detect the temperature state of the cooking utensil 5 are erected. Has been done. The pot bottom temperature sensors 22A, 22B, and 22C are supported so as to be slidable up and down in the instrument body 10, and when the cooking utensil 5 is not placed on the corresponding trivet 15, it is upward above the trivet 15. It is held in a protruding position, and when the cooking utensil 5 is placed on the upper part of the corresponding trivet 15, it is pushed down by the weight of the cooking utensil 5.

コンロバーナ21A,21B,21Cの外周部に設けられた図示しない炎孔の外側には、炎孔周辺にて火花放電する点火プラグ23と、炎孔外側における燃焼炎の有無を検出する炎検知センサ24A,24B,24Cとが設けられている。 On the outside of the flame hole (not shown) provided on the outer periphery of the stove burners 21A, 21B, 21C, there is a spark plug 23 that discharges sparks around the flame hole, and a flame detection sensor that detects the presence or absence of a combustion flame on the outside of the flame hole. 24A, 24B, 24C are provided.

コンロ本体10の内部には、鍋底温度センサ22A,22B,22Cの上下動に応じてオンオフする被加熱物検出手段としての鍋検知スイッチ25A,25B,25Cが設けられている(図3参照)。 Inside the stove body 10, pot detection switches 25A, 25B, 25C are provided as means for detecting the object to be heated, which are turned on and off according to the vertical movement of the pot bottom temperature sensors 22A, 22B, 22C (see FIG. 3).

器具本体10内における天板11の下面側中央前寄りの位置には、加熱調理器1の動作状態や設定情報を表示する表示パネル26が組み込まれている。天板11は、耐熱性および耐衝撃性の高いガラス板で形成されており、表示パネル26は、天板11の中央前寄りの位置に設けられた表示用の透光部(以下、「表示窓」という)16に下面側から対向して配設されている。 A display panel 26 for displaying the operating state and setting information of the cooking utensil 1 is incorporated at a position near the center of the lower surface side of the top plate 11 in the utensil main body 10. The top plate 11 is made of a glass plate having high heat resistance and impact resistance, and the display panel 26 is a translucent portion for display provided at a position near the center of the top plate 11 (hereinafter, “display”). It is arranged to face the window 16) 16 from the lower surface side.

器具本体10内における天板11の下面側左前寄りの位置、右前寄りの位置、および中央前寄りの位置にはそれぞれ、天板11上の所定領域(ここでは、左バーナ21Aおよび右バーナ21Bそれぞれの前方の空間)に使用者の手や衣服などの物体Tが接近したことを赤外線により検出するための物体検出センサ27A,27B,27Cが設けられている。 Predetermined areas on the top plate 11 (here, left burner 21A and right burner 21B, respectively) in the position of the bottom surface side of the top plate 11 near the left front, the position near the right front, and the position near the center in the instrument main body 10. Object detection sensors 27A, 27B, 27C for detecting by infrared rays that an object T such as a user's hand or clothes has approached the space in front of the user are provided.

左側の物体検出センサ(以下、「左側物体検出センサ」ともいう)27Aは、天板11の左前寄りの位置に設けられたセンサ用の透光部(以下、「受発光窓」という)17Aに下面側から対向して配設され、右側の物体検出センサ(以下、「右側物体検出センサ」ともいう)27Bは、天板11の右前寄りの位置に設けられた受発光窓17Bに下面側から対向して配設されている。中央の物体検出センサ(以下、「中央物体検出センサ」ともいう)27Cは、表示パネル26と共に表示窓16に下方から対向して配設されている。 The object detection sensor on the left side (hereinafter, also referred to as “left object detection sensor”) 27A is attached to the translucent portion (hereinafter, “light receiving / emitting window”) 17A for the sensor provided at a position closer to the left front of the top plate 11. The object detection sensor 27B on the right side (hereinafter, also referred to as “right object detection sensor”) 27B, which is arranged facing from the lower surface side, is provided from the lower surface side to the light receiving / emitting window 17B provided at a position closer to the right front of the top plate 11. They are arranged facing each other. The central object detection sensor (hereinafter, also referred to as “central object detection sensor”) 27C is arranged to face the display window 16 from below together with the display panel 26.

バルブユニット20の電磁弁、点消火操作子14A,14B,14Cのスイッチ機構部、点火プラグ23に高電圧を印加するイグナイタ、電源スイッチ13、鍋底温度センサ22A,22B,22C、炎検知センサ24A,24B,24C、鍋検知スイッチ25A,25B,25C、表示パネル26、および物体検出センサ27A,27B,27Cは何れも、器具本体10の内部に組み込まれた制御手段としての主制御回路3に有線接続されている(図3参照)。 Solenoid valve of valve unit 20, switch mechanism of point fire extinguishing controls 14A, 14B, 14C, igniter that applies high voltage to ignition plug 23, power switch 13, pot bottom temperature sensor 22A, 22B, 22C, flame detection sensor 24A, 24B, 24C, pot detection switches 25A, 25B, 25C, display panel 26, and object detection sensors 27A, 27B, 27C are all wiredly connected to the main control circuit 3 as a control means incorporated inside the instrument body 10. (See Fig. 3).

図4に示すように、物体検出センサ27A,27B,27Cは、物体Tの動きを検出するための検出光(以下、「赤外線検出光」という)を、対応する透光部(表示窓16又は受発光窓17A,17B)を通して上記所定領域へ発光する発光手段としての赤外線発光部271と、物体Tに反射した赤外線検出光を対応する透光部(表示窓16又は受発光窓17A,17B)を通して受光する受光手段としての赤外線受光部272とを備えている。即ち、物体検出センサ27A,27B,27Cは、一対の赤外線発光部271および赤外線受光部272を備えている。 As shown in FIG. 4, the object detection sensors 27A, 27B, 27C transmit the detection light for detecting the movement of the object T (hereinafter referred to as “infrared detection light”) to the corresponding translucent unit (display window 16 or The infrared light emitting unit 271 as a light emitting means that emits light to the predetermined region through the light receiving / emitting windows 17A, 17B) and the light transmitting unit (display window 16 or the light emitting / receiving windows 17A, 17B) corresponding to the infrared detection light reflected on the object T. It is provided with an infrared light receiving unit 272 as a light receiving means for receiving light through the light. That is, the object detection sensors 27A, 27B, and 27C include a pair of infrared light emitting units 271 and an infrared light receiving unit 272.

主制御回路3は、電源スイッチ13による電源のオン操作やオフ操作に応じて加熱調理器1の電源のオンオフを制御する電源制御部301、点消火操作子14A,14B,14Cによる点火操作や消火操作、火力の切替操作等に応じてコンロバーナ21A,21B,21Cの火力を制御するバーナ制御部302、炎検知センサ24A,24B,24Cの出力値に基づいて対応するコンロバーナ21A,21B,21Cの点火や消火を判定する点消火判定部303、鍋検知スイッチ25A,25B,25Cのオンオフ状態に基づいて対応するコンロバーナ21A,21B,21C上の所定の加熱位置に調理具5が載置されているか否かを判定する鍋なし判定部304等の回路構成を備えている。 The main control circuit 3 includes a power supply control unit 301 that controls the on / off of the power supply of the cooking cooker 1 in response to an on / off operation of the power supply by the power supply switch 13, and an ignition operation or fire extinguishing operation by the point fire extinguishing controllers 14A, 14B, 14C. Corresponding stove burners 21A, 21B, 21C based on the output values of the burner control unit 302, the flame detection sensors 24A, 24B, 24C that control the thermal power of the stove burners 21A, 21B, 21C according to the operation, the switching operation of the thermal power, etc. The cooking utensil 5 is placed at a predetermined heating position on the corresponding stove burners 21A, 21B, 21C based on the on / off state of the point fire extinguishing determination unit 303, the pot detection switch 25A, 25B, 25C for determining ignition or fire extinguishing. It is provided with a circuit configuration such as a panless determination unit 304 for determining whether or not a fire extinguishing is performed.

さらに、主制御回路3は、赤外線発光部271から一定の赤外線検出光を出力させる発光制御部311、赤外線受光部272による赤外線検出光の受光レベルが設定された基準レベルから変化した度合(変化量)に基づいて物体Tが所定領域に接近したか否かを判定する接近判定手段としての接近判定部312、電源のオンやコンロバーナ21A,21B,21Cの点火の検出、調理具5の載置又は撤去の検出など所定条件を満たしたか否かを判定する状態判定部313、上記所定条件を満たした場合に上記基準レベルを補正する基準補正手段としての基準補正部314等の回路構成を備えている。 Further, the main control circuit 3 has a degree (change amount) in which the light receiving level of the infrared detection light by the light emission control unit 311 and the infrared light receiving unit 272 that output a constant infrared detection light from the infrared light emitting unit 271 has changed from the set reference level. ), The approach determination unit 312 as an approach determination means for determining whether or not the object T has approached a predetermined area, the power on, the ignition detection of the stove 21A, 21B, 21C, and the placement of the cooking utensil 5. Alternatively, it is provided with a circuit configuration such as a state determination unit 313 that determines whether or not a predetermined condition such as removal detection is satisfied, and a reference correction unit 314 as a reference correction means that corrects the reference level when the predetermined condition is satisfied. There is.

バーナ制御部302は、接近判定部312によって物体Tが上記所定領域に所定の制限距離まで接近したと判定された場合に、対応する左バーナ21A又は右バーナ21Bの火力を制限する出力制限機能を有している。 The burner control unit 302 has an output limiting function that limits the thermal power of the corresponding left burner 21A or right burner 21B when it is determined by the approach determination unit 312 that the object T has approached the predetermined area to a predetermined limit distance. Have.

物体検出センサ27A,27B,27Cによる赤外線検出光の受光レベルの変化について、その一例を図4および図5に基づいて説明する。 An example of the change in the light receiving level of the infrared detection light by the object detection sensors 27A, 27B, and 27C will be described with reference to FIGS. 4 and 5.

電源スイッチ13によって加熱調理器1の電源がオンにされたとき、何れの五徳15上にも調理具5が載置されておらず、且つ、所定領域への物体Tの接近もない状態、即ち、使用前の通常の状態(以下、「鍋なし標準状態」という)であれば、物体検出センサ27A,27B,27Cにおける赤外線検出光の受光レベルはそれぞれ「19600」を示し、この値が各物体検出センサ27A,27B,27Cの基準レベルとして設定される。 When the power of the heating cooker 1 is turned on by the power switch 13, the cooking utensil 5 is not placed on any of the Gotoku 15, and the object T does not approach the predetermined area, that is, Under the normal state before use (hereinafter referred to as "standard state without pot"), the light receiving level of the infrared detection light in the object detection sensors 27A, 27B, 27C indicates "19600", and this value is each object. It is set as a reference level for the detection sensors 27A, 27B, and 27C.

鍋なし標準状態のときに、例えば左側物体検出センサ27Aの上方約「20cm」の距離に使用者の手や衣服などの物体Tが接近すれば、左側物体検出センサ27Aの受光レベルは「20300」に上昇する。即ち、鍋なし標準状態のときから受光レベルが「700」上昇する。 In the standard state without a pot, for example, if an object T such as a user's hand or clothes approaches a distance of about "20 cm" above the left object detection sensor 27A, the light receiving level of the left object detection sensor 27A is "20300". Ascend to. That is, the light receiving level rises by "700" from the standard state without a pan.

その後さらに、物体Tが左側物体検出センサ27Aの上方約「15cm」の距離に接近すれば、左側物体検出センサ27Aの受光レベルは「21500」に上昇する。即ち、物体Tとの距離が20cmのときからさらに受光レベルが「1200」上昇する。 After that, when the object T approaches a distance of about "15 cm" above the left object detection sensor 27A, the light receiving level of the left object detection sensor 27A rises to "21500". That is, the light receiving level further increases by "1200" from the time when the distance from the object T is 20 cm.

そしてさらに、物体Tが左側物体検出センサ27Aの上方約「10cm」の距離に接近すれば、左側物体検出センサ27Aの受光レベルは「24000」に上昇する。即ち、物体Tとの距離が15cmのときからさらに受光レベルが「2500」上昇する。 Further, when the object T approaches a distance of about "10 cm" above the left object detection sensor 27A, the light receiving level of the left object detection sensor 27A rises to "24000". That is, the light receiving level further increases by "2500" from the time when the distance from the object T is 15 cm.

尚、上記加熱調理器1では、物体検出センサ27A,27B,27Cの受光レベルが基準レベルから「4400」以上上昇した場合は、対応する左バーナ21A又は右バーナ21Bに対して制限距離(ここでは、10cm)まで物体Tが近づいたとして、左バーナ21A又は右バーナ21Bの火力を一定以下に制限する(ここでは、消火状態で維持する)ように構成されている。従って、上記のように加熱調理器1の電源がオンにされた後、左側物体検出センサ27Aの受光レベルが基準レベルから「4400」以上上昇した場合は、左バーナ21Aに対応する点消火操作子14Aによって点火操作が行われても、左バーナ21Aを点火させず、消火状態で維持する。また、右側物体検出センサ27Bの受光レベルが基準レベルから「4400」以上上昇した場合は、右バーナ21Bの点火を制限し、中央物体検出センサ27Cの受光レベルが基準レベルから「4400」以上上昇した場合は、右バーナ21Aおよび左バーナ21Bの点火を共に制限する。 In the cooking device 1, when the light receiving level of the object detection sensors 27A, 27B, 27C rises by "4400" or more from the reference level, the limit distance is set with respect to the corresponding left burner 21A or right burner 21B (here, in this case). It is configured to limit the thermal power of the left burner 21A or the right burner 21B to a certain level or less (here, it is maintained in a fire extinguishing state) even if the object T approaches to 10 cm). Therefore, if the light receiving level of the left object detection sensor 27A rises by "4400" or more from the reference level after the power of the heating cooker 1 is turned on as described above, the point fire extinguishing controller corresponding to the left burner 21A Even if the ignition operation is performed by 14A, the left burner 21A is not ignited and is maintained in a fire extinguishing state. When the light receiving level of the right object detection sensor 27B rises by "4400" or more from the reference level, the ignition of the right burner 21B is restricted, and the light receiving level of the central object detection sensor 27C rises by "4400" or more from the reference level. In this case, the ignition of both the right burner 21A and the left burner 21B is limited.

加熱調理器1の電源がオンにされた後、点消火操作子14A,14B,14Cによって点火操作がなされ、何れかのコンロバーナ21A,21B,21Cが点火された場合は、そのときの物体検出センサ27A,27B,27Cの受光レベルがそれぞれ、各物体検出センサ27A,27B,27Cの基準レベルとして設定される。即ち、鍋なし標準状態のときに、例えば左バーナ21Aの点火が炎検知センサ24Aによって検出された場合は、そのときの物体検出センサ27A,27B,27Cの受光レベル「19600」がそれぞれ、各物体検出センサ27A,27B,27Cの基準レベルとして設定される。 After the power of the heating cooker 1 is turned on, the ignition operation is performed by the point fire extinguishing actuators 14A, 14B, 14C, and if any of the control burners 21A, 21B, 21C is ignited, the object is detected at that time. The light receiving level of the sensors 27A, 27B, 27C is set as the reference level of each object detection sensor 27A, 27B, 27C, respectively. That is, in the standard state without a pan, for example, when the ignition of the left burner 21A is detected by the flame detection sensor 24A, the light receiving level "19600" of the object detection sensors 27A, 27B, 27C at that time is each object. It is set as a reference level for the detection sensors 27A, 27B, 27C.

尚、上記加熱調理器1では、鍋なし標準状態、即ち、鍋検知スイッチ25A,25B,25Cがオフ状態のときであっても、点消火操作子14A,14B,14Cによって点火操作が行われれば、コンロバーナ21A,21B,21Cは点火され、そのときの受光レベルが基準レベルとして再設定されるように構成されているが、鍋検知スイッチ25A,25B,25Cがオフ状態である場合、点消火操作子14A,14B,14Cによって点火操作が行われても、コンロバーナ21A,21B,21Cを点火させず、上記のように点火時の基準レベルの再設定も行わないものとしてもよい。 In the above-mentioned cooking cooker 1, even when the potless standard state, that is, the pot detection switches 25A, 25B, 25C are in the off state, if the ignition operation is performed by the point fire extinguishing actuators 14A, 14B, 14C. , The stove burners 21A, 21B, 21C are ignited, and the light receiving level at that time is configured to be reset as a reference level. Even if the ignition operation is performed by the controls 14A, 14B, 14C, the stove burners 21A, 21B, 21C may not be ignited, and the reference level at the time of ignition may not be reset as described above.

上記のように、例えば左バーナ21Aが点火された後、左側物体検出センサ27Aの受光レベルが基準レベルから「4400」以上上昇した場合は、物体Tが左バーナ21Aに対して制限距離(ここでは、10cm)まで近づいたとして、左バーナ21Aを自動消火させる。 As described above, for example, when the light receiving level of the left object detection sensor 27A rises by "4400" or more from the reference level after the left burner 21A is ignited, the object T has a limited distance (here, here) with respect to the left burner 21A. The left burner 21A is automatically extinguished as it approaches (10 cm).

一方、鍋なし標準状態のときに、例えば左バーナ21Aの五徳15上に調理具5が載置されて「鍋ありの状態」になると、調理具5の重みによって、特に左側物体検出センサ27Aの上域における天板11の撓み度合が大きくなり、左側物体検出センサ27Aと天板11の受発光窓17Aとの距離が変動する。その結果、赤外線発光部271から発せられた赤外線検出光の反射方向や屈折方向が鍋なし標準状態のときと異なる方向に変化し、赤外線受光部272における赤外線検出光の受光レベルが「5100」にまで低下する。そこで、上記加熱調理器1では、鍋なし標準状態のときに、例えば左バーナ21Aに対応する鍋検知スイッチ25Aがオン状態になれば、そのときの左側物体検出センサ27Aの受光レベル「5100」を左側物体検出センサ27Aにおける基準レベルとして設定する。 On the other hand, in the standard state without a pan, for example, when the cooking utensil 5 is placed on the trivet 15 of the left burner 21A and becomes "the state with the pan", the weight of the cooking utensil 5 causes the left object detection sensor 27A to be particularly effective. The degree of bending of the top plate 11 in the upper region becomes large, and the distance between the left object detection sensor 27A and the light receiving / emitting window 17A of the top plate 11 fluctuates. As a result, the reflection direction and the refraction direction of the infrared detection light emitted from the infrared light emitting unit 271 change in a direction different from that in the standard state without a pan, and the light receiving level of the infrared detection light in the infrared light receiving unit 272 becomes "5100". Drops to. Therefore, in the heating cooker 1, if the pot detection switch 25A corresponding to the left burner 21A is turned on in the standard state without a pot, the light receiving level “5100” of the left object detection sensor 27A at that time is set. It is set as a reference level in the left object detection sensor 27A.

また、調理具5の重みによって、右側物体検出センサ27Bと天板11の受発光窓17Bとの距離、および、中央物体検出センサ27Cと天板11の表示窓16との距離も変動すれば、右側物体検出センサ27Bおよび中央物体検出センサ27Cにおいても、そのときの受光レベルがそれぞれ基準レベルとして設定される。 Further, if the distance between the right object detection sensor 27B and the light receiving / emitting window 17B of the top plate 11 and the distance between the central object detection sensor 27C and the display window 16 of the top plate 11 vary depending on the weight of the cooking utensil 5, Also in the right object detection sensor 27B and the central object detection sensor 27C, the light receiving level at that time is set as a reference level, respectively.

鍋ありの状態で、例えば左バーナ21Aが点火された後、左側物体検出センサ27Aの受光レベルが「9500」に上昇した場合、即ち、基準レベルから「4400」以上上昇した場合は、物体Tが左バーナ21Aに対して制限距離(ここでは、10cm)まで近づいたとして、左バーナ21Aを強制的に消火させる。 In the presence of a pan, for example, when the light receiving level of the left object detection sensor 27A rises to "9500" after the left burner 21A is ignited, that is, when the light receiving level rises by "4400" or more from the reference level, the object T rises. The left burner 21A is forcibly extinguished on the assumption that the left burner 21A is approached to a limited distance (here, 10 cm).

尚、五徳15上から調理具5が撤去された場合は、天板11の撓み度合が元の状態に戻るため、各物体検出センサ27A,27B,27Cの受光レベルは何れも、鍋なし標準状態のときの受光レベル「19600」まで上昇し、このときの受光レベルが各物体検出センサ27A,27B,27Cの基準レベルとして設定される。 When the cooking utensil 5 is removed from the top of the trivet 15, the degree of bending of the top plate 11 returns to the original state, so that the light receiving levels of the object detection sensors 27A, 27B, and 27C are all in the standard state without a pot. The light receiving level at this time rises to "19600", and the light receiving level at this time is set as the reference level of each object detection sensor 27A, 27B, 27C.

このように、上記加熱調理器1によれば、電源がオンにされたときやコンロバーナ21A,21B,21Cの点火が検出されたとき、調理具5の載置又は撤去が検出されたときなど、所定条件を満たしたタイミングで基準レベルが補正され、その補正された基準レベルに基づいて物体検出センサ27A,27B,27Cの受光レベルの変化量が判定されるから、調理具5の重みなどによって天板11の撓み度合が変化しても、天板11上の所定領域に物体Tが接近したことを正確に検出することができる。これにより、点火されたコンロバーナ21A,21Bに使用者の手や衣服が近づいた際に、対応するコンロバーナ21A,21Bの火力を適切なタイミングで制限できる。また、点火されていないコンロバーナ21A,21Bの近くに使用者の手や衣服がある場合も、対応するコンロバーナ21A,21Bの点火を適切に制限できる。 As described above, according to the heating cooker 1, when the power is turned on, when the ignition of the stove burners 21A, 21B, 21C is detected, when the mounting or removal of the cooking utensil 5 is detected, and the like. , The reference level is corrected at the timing when the predetermined condition is satisfied, and the amount of change in the light receiving level of the object detection sensors 27A, 27B, 27C is determined based on the corrected reference level. Even if the degree of bending of the top plate 11 changes, it is possible to accurately detect that the object T has approached a predetermined region on the top plate 11. As a result, when the user's hand or clothes approach the ignited stove burners 21A and 21B, the thermal power of the corresponding stove burners 21A and 21B can be limited at an appropriate timing. Further, even when the user's hand or clothes are near the non-ignited stove burners 21A and 21B, the ignition of the corresponding stove burners 21A and 21B can be appropriately restricted.

尚、上記実施の形態では、物体Tが天板11上の所定領域に制限距離まで近づいた場合は、対応するコンロバーナ21A,21Bを自動消火させるように構成されたものを説明したが、物体Tが上記所定領域に制限距離まで近づいた場合は、対応するコンロバーナ21A,21Bの火力を設定火力より小火力(例えば、最小火力)に制限するように構成されたものとしてもよい。 In the above embodiment, when the object T approaches a predetermined area on the top plate 11 to a predetermined distance, the corresponding stove burners 21A and 21B are configured to automatically extinguish the fire. When T approaches the predetermined area to the limit distance, the thermal power of the corresponding stove burners 21A and 21B may be configured to be limited to a smaller thermal power (for example, the minimum thermal power) than the set thermal power.

また、上記実施の形態では、鍋検知スイッチ25A,25B,25Cのオンオフ状態に基づいて対応するコンロバーナ21A,21B,21C上の所定の加熱位置に調理具5が載置されているか否かを判定するように構成されたものを説明したが、物体検出センサ27A,27B,27Cにおける受光レベルの変化の度合に基づいてコンロバーナ21A,21B,21C上の所定の加熱位置に調理具5が載置されているか否かを判定するように構成されたものとしてもよい。 Further, in the above embodiment, whether or not the cooking utensil 5 is placed at a predetermined heating position on the corresponding stove burners 21A, 21B, 21C based on the on / off state of the pot detection switches 25A, 25B, 25C. Although the one configured to be determined has been described, the cooking utensil 5 is placed at a predetermined heating position on the stove burners 21A, 21B, 21C based on the degree of change in the light receiving level in the object detection sensors 27A, 27B, 27C. It may be configured to determine whether or not it is placed.

詳述すると、主制御回路3は、鍋なし判定部304に代えて、物体検出センサ27A,27B,27Cの受光レベルが基準レベルから所定以上変化した変動状態が所定時間以上継続したか否かを判定する変動状態判定手段としての変動状態判定部を備えており、上記鍋なし標準状態のときに、左側物体検出センサ27Aの受光レベルが基準レベルから所定以上低下した状態(例えば、基準レベルから「14000」以上低下した状態)が所定時間以上(例えば、5秒以上)継続した場合は、左バーナ21A上の所定の加熱位置に調理具5が載置された状態であると判定し、右側物体検出センサ27Bの受光レベルが基準レベルから所定以上低下した状態が所定時間以上継続した場合は、右バーナ21B上の所定の加熱位置に調理具5が載置された状態であると判定する。また、中央物体検出センサ27Cの受光レベルが基準レベルから所定以上低下した状態が所定時間以上継続した場合は、後バーナ21C上の所定の加熱位置に調理具5が載置された状態であると判定する。 More specifically, the main control circuit 3 determines whether or not the fluctuation state in which the light receiving level of the object detection sensors 27A, 27B, 27C has changed by a predetermined level or more from the reference level has continued for a predetermined time or longer instead of the potless determination unit 304. It is equipped with a fluctuation state determination unit as a fluctuation state determination means for determination, and is in a state where the light receiving level of the left object detection sensor 27A is lowered by a predetermined level or more from the reference level (for example, from the reference level to "" in the standard state without a pan. If the state of being lowered by 14,000 or more) continues for a predetermined time or longer (for example, 5 seconds or longer), it is determined that the cooking utensil 5 is placed at a predetermined heating position on the left burner 21A, and the right object. When the state in which the light receiving level of the detection sensor 27B is lowered by a predetermined level or more from the reference level continues for a predetermined time or more, it is determined that the cooking utensil 5 is placed in a predetermined heating position on the right burner 21B. Further, when the light receiving level of the central object detection sensor 27C is lowered by a predetermined level or more from the reference level for a predetermined time or longer, it is considered that the cooking utensil 5 is placed at a predetermined heating position on the rear burner 21C. judge.

このような構成とすることで、鍋検知スイッチ25A,25B,25Cを備えていない加熱調理器1であっても、調理具5の重みで天板11に撓みが生じている場合は、その際に補正される基準レベルに基づいて各物体検出センサ27A,27B,27Cの受光レベルの変化度合を判定できる。これにより、天板11上の所定領域に物体Tが接近したことを正確に検出することができる。 With such a configuration, even if the cooking cooker 1 is not provided with the pot detection switches 25A, 25B, 25C, if the top plate 11 is bent due to the weight of the cooking utensil 5, at that time. The degree of change in the light receiving level of each object detection sensor 27A, 27B, 27C can be determined based on the reference level corrected to. As a result, it is possible to accurately detect that the object T has approached the predetermined area on the top plate 11.

上記実施の形態では、使用者の手や衣服などの物体Tが天板11上の所定領域に制限距離まで接近したことが物体検出センサ27A,27B,27Cによって検出された場合に、対応するコンロバーナ21A,21Bの火力を一定以下に制限する機能について説明したが、物体検出センサ27A,27B,27Cによる受光レベルの変化度合に基づいて天板11上の所定領域における使用者の手の動き(物体Tの動き)を判別し、コンロバーナ21A,21B,21Cの消火や動作モードの切替などが行われるジェスチャー操作機能をさらに備えたものとしてもよい。このものにおいても、上記実施形態のような構成を採用することで、天板11上における使用者の手の動きを正確に判別できるから、操作性が格段に向上する。 In the above embodiment, when the object detection sensors 27A, 27B, and 27C detect that the object T such as a user's hand or clothes has approached a predetermined area on the top plate 11 to a limited distance, the corresponding controller. The function of limiting the thermal power of the burners 21A and 21B to a certain level or less has been described, but the movement of the user's hand in a predetermined area on the top plate 11 based on the degree of change in the light receiving level by the object detection sensors 27A, 27B and 27C ( It may be further provided with a gesture operation function for discriminating the movement of the object T) and extinguishing the fire of the controller 21A, 21B, 21C, switching the operation mode, and the like. Also in this case, by adopting the configuration as in the above embodiment, the movement of the user's hand on the top plate 11 can be accurately determined, so that the operability is significantly improved.

上記実施の形態では、天板11上に載置された調理具5を加熱する加熱手段としてガスバーナが用いられたものを説明したが、本発明は、加熱手段として電熱部からの輻射熱や伝導熱により調理具5を加熱する電熱ヒータが用いられた加熱調理器にも適用できるし、電磁誘導により調理具5を加熱する電磁誘導ヒータが用いられた加熱調理器にも適用できる。また、複数の加熱手段としてガスバーナや電熱ヒータ、電磁誘導ヒータが組み合わせて用いられた加熱調理器にも適用できる。 In the above embodiment, a gas burner is used as a heating means for heating the cooking utensil 5 placed on the top plate 11, but in the present invention, radiant heat or conduction heat from an electric heating unit is described as the heating means. It can be applied to a heating cooker using an electric heater for heating the cooking utensil 5, and also to a heating cooker using an electromagnetic induction heater for heating the cooking utensil 5 by electromagnetic induction. It can also be applied to a cooking device in which a gas burner, an electric heater, and an electromagnetic induction heater are used in combination as a plurality of heating means.

また、本発明は、キッチンのカウンタトップ4に埋設して使用されるビルトインコンロに限らず、キッチンのテーブルに載置して使用されるテーブルコンロにも適用できる。 Further, the present invention is applicable not only to the built-in stove used by being embedded in the counter top 4 of the kitchen, but also to the table stove used by placing it on the table of the kitchen.

1 加熱調理器
10 器具本体
11 天板
16 表示窓(透光部)
17A、17B 受発光窓(透光部)
21A,21B,21C コンロバーナ(加熱手段)
27A,27B,27C 物体検出センサ(物体検出手段)
271 赤外線発光部(発光手段)
272 赤外線受光部(受光手段)
3 主制御回路(制御手段)
312 接近判定部(接近判定手段)
314 基準補正部(基準補正手段)
5 調理具(被加熱物)
T 物体
1 Cooking cooker 10 Equipment body 11 Top plate 16 Display window (translucent part)
17A, 17B Light receiving / emitting window (translucent part)
21A, 21B, 21C stove burner (heating means)
27A, 27B, 27C Object detection sensor (object detection means)
271 Infrared light emitting part (light emitting means)
272 Infrared light receiving part (light receiving means)
3 Main control circuit (control means)
312 Approach determination unit (approach determination means)
314 Reference correction unit (reference correction means)
5 Cooking utensils (heated objects)
T object

Claims (4)

器具本体の上面部を構成する天板と、天板上に載置された被加熱物を加熱する加熱手段と、天板に設けられた透光部の下面側に設けられ、天板上の物体の動きを検出する物体検出手段と、天板上の所定領域に物体が接近したことが物体検出手段によって検出された場合に、加熱手段の出力を制限する制御手段とを備えた加熱調理器であって、
天板上の所定の加熱位置に被加熱物が載置されているか否かを検出する被加熱物検出手段を備え、
物体検出手段は、透光部を通して天板上へ検出光を発光する発光手段と、天板上の物体に反射し透光部を通して戻ってくる検出光を受光する受光手段とを備え、
制御手段は、物体検出手段による検出光の受光レベルが基準レベルから変化した度合に基づいて物体が前記所定領域に接近したか否かを判定する接近判定手段と、所定条件を満たした場合に、前記基準レベルを補正する基準補正手段とを備え
基準補正手段は、所定条件として被加熱物の載置又は撤去が被加熱物検出手段によって検出された場合に、前記基準レベルを補正する、加熱調理器。
The top plate constituting the upper surface of the instrument body, the heating means for heating the object to be heated placed on the top plate, and the lower surface side of the translucent portion provided on the top plate are provided on the top plate. A cooking cooker equipped with an object detecting means for detecting the movement of an object and a control means for limiting the output of the heating means when the object detecting means detects that an object has approached a predetermined area on a top plate. And
It is provided with a heated object detecting means for detecting whether or not the heated object is placed at a predetermined heating position on the top plate.
The object detecting means includes a light emitting means that emits the detected light onto the top plate through the translucent portion and a light receiving means that receives the detected light that is reflected by the object on the top plate and returned through the translucent portion.
The control means includes an approach determination means for determining whether or not the object has approached the predetermined region based on the degree to which the light receiving level of the light detected by the object detection means has changed from the reference level, and when the predetermined conditions are satisfied. A reference correction means for correcting the reference level is provided .
The reference correction means is a cooking device that corrects the reference level when the placement or removal of the heated object is detected by the heated object detecting means as a predetermined condition .
器具本体の上面部を構成する天板と、天板上に載置された被加熱物を加熱する加熱手段と、天板に設けられた透光部の下面側に設けられ、天板上の物体の動きを検出する物体検出手段と、天板上の所定領域に物体が接近したことが物体検出手段によって検出された場合に、加熱手段の出力を制限する制御手段とを備えた加熱調理器であって、
物体検出手段は、透光部を通して天板上へ検出光を発光する発光手段と、天板上の物体に反射し透光部を通して戻ってくる検出光を受光する受光手段とを備え、
制御手段は、物体検出手段による検出光の受光レベルが基準レベルから変化した度合に基づいて物体が前記所定領域に接近したか否かを判定する接近判定手段と、所定条件を満たした場合に、前記基準レベルを補正する基準補正手段とを備え、
基準補正手段は、所定条件として加熱手段の出力がなされた場合に、前記基準レベルを補正する、加熱調理器。
The top plate constituting the upper surface of the instrument body, the heating means for heating the object to be heated placed on the top plate, and the lower surface side of the translucent portion provided on the top plate are provided on the top plate. A cooking cooker equipped with an object detecting means for detecting the movement of an object and a control means for limiting the output of the heating means when the object detecting means detects that an object has approached a predetermined area on a top plate. And
The object detecting means includes a light emitting means that emits the detected light onto the top plate through the translucent portion and a light receiving means that receives the detected light that is reflected by the object on the top plate and returned through the translucent portion.
The control means includes an approach determination means for determining whether or not the object has approached the predetermined region based on the degree to which the light receiving level of the light detected by the object detection means has changed from the reference level, and when the predetermined conditions are satisfied. A reference correction means for correcting the reference level is provided.
The reference correction means is a cooking device that corrects the reference level when the output of the heating means is output as a predetermined condition.
器具本体の上面部を構成する天板と、天板上に載置された被加熱物を加熱する加熱手段と、天板に設けられた透光部の下面側に設けられ、天板上の物体の動きを検出する物体検出手段と、天板上の所定領域に物体が接近したことが物体検出手段によって検出された場合に、加熱手段の出力を制限する制御手段とを備えた加熱調理器であって、
物体検出手段は、透光部を通して天板上へ検出光を発光する発光手段と、天板上の物体に反射し透光部を通して戻ってくる検出光を受光する受光手段とを備え、
制御手段は、物体検出手段による検出光の受光レベルが基準レベルから変化した度合に基づいて物体が前記所定領域に接近したか否かを判定する接近判定手段と、所定条件を満たした場合に、前記基準レベルを補正する基準補正手段とを備え、
受光レベルが基準レベルから所定以上変化した変動状態が所定時間以上継続したか否かを判定する変動状態判定手段を備え、
基準補正手段は、所定条件として前記変動状態が所定時間以上継続した場合に、前記基準レベルを補正する、加熱調理器。
The top plate constituting the upper surface of the instrument body, the heating means for heating the object to be heated placed on the top plate, and the lower surface side of the translucent portion provided on the top plate are provided on the top plate. A cooking cooker equipped with an object detecting means for detecting the movement of an object and a control means for limiting the output of the heating means when the object detecting means detects that an object has approached a predetermined area on a top plate. And
The object detecting means includes a light emitting means that emits the detected light onto the top plate through the translucent portion and a light receiving means that receives the detected light that is reflected by the object on the top plate and returned through the translucent portion.
The control means includes an approach determination means for determining whether or not the object has approached the predetermined region based on the degree to which the light receiving level of the light detected by the object detection means has changed from the reference level, and when the predetermined conditions are satisfied. A reference correction means for correcting the reference level is provided.
It is equipped with a fluctuation state determination means for determining whether or not a fluctuation state in which the light receiving level has changed by a predetermined level or more from a reference level has continued for a predetermined time or longer.
The reference correction means is a cooking device that corrects the reference level when the fluctuation state continues for a predetermined time or longer as a predetermined condition.
器具本体の上面部を構成する天板と、天板上に載置された被加熱物を加熱する加熱手段と、天板に設けられた透光部の下面側に設けられ、天板上の物体の動きを検出する物体検出手段と、天板上の所定領域に物体が接近したことが物体検出手段によって検出された場合に、加熱手段の出力を制限する制御手段とを備えた加熱調理器であって、
物体検出手段は、透光部を通して天板上へ検出光を発光する発光手段と、天板上の物体に反射し透光部を通して戻ってくる検出光を受光する受光手段とを備え、
制御手段は、物体検出手段による検出光の受光レベルが基準レベルから変化した度合に基づいて物体が前記所定領域に接近したか否かを判定する接近判定手段と、所定条件を満たした場合に、前記基準レベルを補正する基準補正手段とを備え、
基準補正手段は、所定条件として器具の電源がオンになった場合に、前記基準レベルを補正する、加熱調理器。
The top plate constituting the upper surface of the instrument body, the heating means for heating the object to be heated placed on the top plate, and the lower surface side of the translucent portion provided on the top plate are provided on the top plate. A cooking cooker equipped with an object detecting means for detecting the movement of an object and a control means for limiting the output of the heating means when the object detecting means detects that an object has approached a predetermined area on a top plate. And
The object detecting means includes a light emitting means that emits the detected light onto the top plate through the translucent portion and a light receiving means that receives the detected light that is reflected by the object on the top plate and returned through the translucent portion.
The control means includes an approach determination means for determining whether or not the object has approached the predetermined region based on the degree to which the light receiving level of the light detected by the object detection means has changed from the reference level, and when the predetermined conditions are satisfied. A reference correction means for correcting the reference level is provided.
The reference correction means is a cooking device that corrects the reference level when the power of the appliance is turned on as a predetermined condition.
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