JP5178758B2 - Induction heating cooker - Google Patents

Induction heating cooker Download PDF

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JP5178758B2
JP5178758B2 JP2010053148A JP2010053148A JP5178758B2 JP 5178758 B2 JP5178758 B2 JP 5178758B2 JP 2010053148 A JP2010053148 A JP 2010053148A JP 2010053148 A JP2010053148 A JP 2010053148A JP 5178758 B2 JP5178758 B2 JP 5178758B2
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sensor
induction heating
sensor case
housing
heating cooker
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JP2011187374A (en
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昭彦 小林
広康 私市
博史 山崎
滋之 永田
彰 森井
庄太 神谷
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07—Heating plates with temperature control means

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

Description

本発明は、被加熱物から放射される赤外線量を検出する赤外線センサーの筐体上面からの突出量を少なくでき、かつ測定精度を向上させ得る誘導加熱調理器に関する。   The present invention relates to an induction heating cooker that can reduce the amount of protrusion of an infrared sensor that detects the amount of infrared rays radiated from an object to be heated from the upper surface of the housing and can improve measurement accuracy.

従来より、被加熱物から放射される赤外線量を側面より検出し、被加熱物の温度を測定する機能を備えた誘導加熱調理器は知られている。   Conventionally, an induction heating cooker having a function of detecting the amount of infrared rays emitted from a heated object from the side surface and measuring the temperature of the heated object is known.

このようなものにおいて、被加熱物の温度を測定する赤外線センサー、及びこのセンサーの出力を例えばＡ／Ｄ変換（アナログ／デジタル変換）したり特定波長領域の光の抽出などの処理を行うセンサー回路の基板は、従来、筐体内に直接収納している（例えば、特許文献１参照）。   In such a device, an infrared sensor that measures the temperature of the object to be heated, and a sensor circuit that performs processing such as A / D conversion (analog / digital conversion) or extraction of light in a specific wavelength region, for example, from the sensor output Conventionally, the substrate is directly stored in a housing (see, for example, Patent Document 1).

特開２００３−２６４０５５号公報（図１、図２）Japanese Unexamined Patent Publication No. 2003-264055 (FIGS. 1 and 2)

しかしながら、赤外線センサー及びセンサー回路基板を直接筐体に収納するようにしたものにあっては、赤外線センサーの筐体上面からの突出量が大きく、そのため汚れやすく、汚れにより測定精度が低下してしまうという難点があった。
さらに、筐体内への機器の組込段階でなければ赤外線センサー及びセンサー回路基板の取付ができず、また筐体を分解しなければメンテナンスが行えない等、信頼性、防汚性、組立性、メンテナンス性に課題を残している。 However, in the case where the infrared sensor and the sensor circuit board are directly housed in the casing, the protruding amount of the infrared sensor from the upper surface of the casing is large, so that it is easily contaminated, and the measurement accuracy is reduced due to the dirt. There was a difficulty.
In addition, the infrared sensor and sensor circuit board cannot be attached unless the equipment is installed in the housing, and maintenance cannot be performed unless the housing is disassembled. There remains a problem in maintainability.

本発明の技術的課題は、信頼性、防汚性、組立性、メンテナンス性を向上させ得るようにすることにある。   The technical problem of the present invention is to improve reliability, antifouling properties, assemblability, and maintainability.

本発明に係る誘導加熱調理器は、筐体の上面に設置されて被加熱物を載置するトッププレートと、トッププレートの下側に設けた誘導加熱コイルと、被加熱物から放射される赤外線量を検出する赤外線センサーと、赤外線センサーの出力の少なくとも一部を処理するセンサ回路が設けられたセンサー回路基板と、センサー回路基板の出力に基づき誘導加熱コイルを駆動する制御回路と、を備え、赤外線センサーとセンサー回路基板を一つのセンサーケースに納め、センサーケースは、一部が筐体上面から突出し、一部が筐体内に納まるよう筐体上面に、当該筐体上面より着脱可能に取り付けたものである。 An induction heating cooker according to the present invention includes a top plate that is installed on the upper surface of a housing and places an object to be heated, an induction heating coil provided on the lower side of the top plate, and an infrared ray emitted from the object to be heated. An infrared sensor for detecting the amount, a sensor circuit board provided with a sensor circuit for processing at least a part of the output of the infrared sensor, and a control circuit for driving the induction heating coil based on the output of the sensor circuit board, The infrared sensor and sensor circuit board are housed in one sensor case, and the sensor case is detachably attached to the top surface of the housing so that part of the case protrudes from the top surface of the housing and part of the sensor case fits inside the housing. Is.

本発明に係る誘導加熱調理器においては、赤外線センサーとセンサー回路基板を一つのセンサーケースに納め、センサーケースは、一部が筐体上面から突出し、一部が筐体内に納まるよう筐体上面に、当該筐体上面より着脱可能に取り付けるようにしているので、センサー出力が回路に到達するまでの間のノイズ・外乱の影響が減り、測定精度・信頼性が向上する。さらに、センサーケースは、筐体を分解せずに筐体上面より組立やメンテナンス作業を行えるので、組立性・メンテナンス性が向上し、製品コスト・メンテナンスコストを低くできる。また、赤外線センサーの筐体上面からの突出量が少なくなって、防汚性・防水性が高まる。 In the induction heating cooker according to the present invention, the infrared sensor and the sensor circuit board are accommodated in one sensor case, and the sensor case partially protrudes from the upper surface of the housing and is placed on the upper surface of the housing so as to be partially accommodated in the housing. Since it is detachably attached from the upper surface of the housing , the influence of noise and disturbance until the sensor output reaches the circuit is reduced, and the measurement accuracy and reliability are improved. Furthermore, the sensor case, since allows the assembly and maintenance work from the housing top surface without disassembling the housing, improved assembling property and maintainability can lower product cost and maintenance costs. In addition, the amount of protrusion of the infrared sensor from the upper surface of the housing is reduced, and the antifouling property and waterproofness are enhanced.

本発明の実施の形態１に係る誘導加熱調理器の外観を示す斜視図である。It is a perspective view which shows the external appearance of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る誘導加熱調理器のトッププレートを外し、通風口グリルを分解した状態の斜視図である。It is a perspective view of the state which removed the top plate of the induction heating cooking appliance concerning Embodiment 1 of the present invention, and exploded the vent grille. 本発明の実施の形態１に係る誘導加熱調理器のセンサーケース取付穴部の分解斜視図である。It is a disassembled perspective view of the sensor case attachment hole part of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る誘導加熱調理器のセンサーケースの分解斜視図である。It is a disassembled perspective view of the sensor case of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る誘導加熱調理器の赤外線センサー及びセンサー回路基板の保持状態を示すセンサーケースの前部品の背面図である。It is a rear view of the front part of the sensor case which shows the holding | maintenance state of the infrared sensor and sensor circuit board of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る誘導加熱調理器のセンサーケース取付穴部の側面断面図である。It is side surface sectional drawing of the sensor case attachment hole part of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る誘導加熱調理器の片側の通風口グリルを分解した状態の斜視図である。It is a perspective view of the state which decomposed | disassembled the ventilation grill on one side of the induction heating cooking appliance which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る誘導加熱調理器のセンサーケース取付穴部の分解斜視図である。It is a disassembled perspective view of the sensor case attachment hole part of the induction heating cooking appliance which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る誘導加熱調理器のセンサーケースの分解斜視図である。It is a disassembled perspective view of the sensor case of the induction heating cooking appliance which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る誘導加熱調理器のカバー部材を含むセンサーケース取付穴部の側面断面図である。It is side surface sectional drawing of the sensor case attachment hole part containing the cover member of the induction heating cooking appliance which concerns on Embodiment 2 of this invention. 本発明の実施の形態３に係る誘導加熱調理器のトッププレートを外し、片側の通風口グリルを分解した状態の斜視図である。It is a perspective view of the state which removed the top plate of the induction heating cooking appliance which concerns on Embodiment 3 of this invention, and decomposed | disassembled the one-side ventilation grille. 本発明の実施の形態３に係る誘導加熱調理器の基板ケースユニットとチャンバを分解した状態の斜視図である。It is a perspective view of the state which decomposed | disassembled the substrate case unit and chamber of the induction heating cooking appliance which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る誘導加熱調理器のセンサーケースの分解斜視図である。It is a disassembled perspective view of the sensor case of the induction heating cooking appliance which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る誘導加熱調理器のカバー部材を含むセンサーケース取付穴部の側面断面図である。It is side surface sectional drawing of the sensor case attachment hole part containing the cover member of the induction heating cooking appliance which concerns on Embodiment 3 of this invention.

実施の形態１．
図１は本発明の実施の形態１に係る誘導加熱調理器の外観を示す斜視図、図２はそのトッププレートを外し、通風口グリルを分解した状態の斜視図、図３はそのセンサーケース取付穴部の分解斜視図、図４はそのセンサーケースの分解斜視図、図５はその赤外線センサー及びセンサー回路基板の保持状態を示すセンサーケースの前部品の背面図、図６はそのセンサーケース取付穴部の側面断面図である。 Embodiment 1 FIG.
FIG. 1 is a perspective view showing the appearance of an induction heating cooker according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of a state in which the top plate is removed and the ventilation grill is disassembled, and FIG. FIG. 4 is an exploded perspective view of the sensor case, FIG. 5 is a rear view of the front part of the sensor case showing the holding state of the infrared sensor and the sensor circuit board, and FIG. 6 is the sensor case mounting hole. It is side surface sectional drawing of a part.

本実施の形態の誘導加熱調理器は、図１乃至図６のように筐体１の上面における背面側の２ヶ所に通風口グリル２ａ，２ｂと一体化されて通風性を有し、吸気または排気を行う通気口の少なくとも一部を覆うカバー部材３ａ，３ｂがそれぞれ設けられている。これらカバー部材３ａ，３ｂには、赤外線センサーが受光するための窓部が設けられ、窓部に赤外線透過部材５ａ，５ｂがそれぞれ取り付けられていて、トッププレート３０に載置される被加熱物から放射される赤外線が入射可能となっている。また、トッププレート３０の下側には、前面側に左右とそれらの中間部の後方位置に、それぞれ誘導加熱コイル８ａ，８ｂ，８ｃが設けられているとともに、左右後方の空いてるスペースに、赤外線センサー４による検出結果や図示しないサーミスタによる温度検知の結果に基づき誘導加熱コイル８ａ，８ｂ，８ｃを駆動する制御回路の基板（以下、「制御基板という」）９ａ，９ｂが配置されている。   As shown in FIGS. 1 to 6, the induction heating cooker of the present embodiment is integrated with the ventilation grilles 2a and 2b at two locations on the back side of the upper surface of the housing 1, and has ventilation characteristics. Cover members 3a and 3b are provided to cover at least part of the vent holes for exhausting air. These cover members 3a and 3b are provided with windows for receiving light by the infrared sensor, and infrared transmission members 5a and 5b are attached to the windows, respectively, from the object to be heated placed on the top plate 30. The emitted infrared light can be incident. In addition, on the lower side of the top plate 30, induction heating coils 8a, 8b, and 8c are provided on the front side on the left side and on the rear side of the middle portion thereof, respectively, and infrared rays are provided in the left and right rear spaces. Control circuit boards (hereinafter referred to as “control boards”) 9a, 9b for driving the induction heating coils 8a, 8b, 8c are arranged based on the detection result by the sensor 4 and the temperature detection result by a thermistor (not shown).

筐体上面の背面側には、中央に排気口６、その両側に吸気口７ａ，７ｂがそれぞれ設けられている。但し、これら排気口６及び吸気口７ａ，７ｂでなる通風口の配置は一例でありこれに限るものでなく、例えば筐体前面部に吸気口を設け、筐体背面側の上面に排気口を設けるレイアウトであってもよい。   On the back side of the upper surface of the housing, an exhaust port 6 is provided in the center, and intake ports 7a and 7b are provided on both sides thereof. However, the arrangement of the ventilation ports including the exhaust ports 6 and the intake ports 7a and 7b is merely an example, and is not limited thereto. For example, an intake port is provided on the front surface of the housing, and the exhaust port is provided on the upper surface on the rear surface side of the housing. A layout may be provided.

また、吸気口７ａ，７ｂと同じ筐体上面の開口の一端には、図３のように吸気ダクトで仕切られたセンサーケース取付穴（吸気口７ｂ側のみ示す）７ｃが設けられ、センサーケース取付穴７ｃにセンサーケース１１Ａが取り付けられ、センサーケース１１Ａがカバー部材３ｂに収容されて外部衝撃等より保護されるようになっている。なお、センサーケース取付穴７ｃは、必ずしも吸気口７ａ，７ｂにおける吸気ダクトで仕切られた部位とする必要はなく、筐体上面における排気口６及び吸気口７ａ，７ｂでなる通風口の開口であればどこでもよいものである。また、左右のセンサーケースは、設置角度を除けば同一構成であるため、これ以降、後述の他の実施の形態も含め、一方（右側配置）のセンサーケース１１Ａについてのみ説明する。   Also, a sensor case mounting hole (shown only on the side of the intake port 7b) 7c partitioned by an intake duct as shown in FIG. 3 is provided at one end of the opening on the upper surface of the same casing as the intake ports 7a and 7b. A sensor case 11A is attached to the hole 7c, and the sensor case 11A is accommodated in the cover member 3b so as to be protected from an external impact or the like. The sensor case mounting hole 7c does not necessarily have to be a portion partitioned by the intake duct in the intake ports 7a and 7b, and may be an opening of the ventilation port including the exhaust port 6 and the intake ports 7a and 7b on the upper surface of the housing. It is good anywhere. Since the left and right sensor cases have the same configuration except for the installation angle, only the one (right side arrangement) sensor case 11A will be described below, including other embodiments described later.

この右側配置のセンサーケース１１Ａ内の赤外線センサー４は、センサー回路基板１０に直接搭載されており、ここでは前面側の一方（右側）の誘導加熱コイル８ｂが加熱する被加熱物からの赤外線を検知して温度を測定している。なお、赤外線センサーとしては、センサー素子とセンサーカバーを一体に、単独の製品として作成し、これを基板上に取り付けるタイプのものと、センサー素子を基板上に実装し、この上にセンサーカバーを取り付けるタイプのものとが有る。   The infrared sensor 4 in the sensor case 11A arranged on the right side is directly mounted on the sensor circuit board 10, and here detects infrared rays from an object to be heated which is heated by one induction heating coil 8b on the front side (right side). And measure the temperature. In addition, as an infrared sensor, a sensor element and a sensor cover are integrally formed as a single product, and the sensor element is mounted on the board, and the sensor element is mounted on the board, and the sensor cover is mounted thereon. There are types.

通常、右側配置のセンサーケース１１Ａ内の赤外線センサー４が受光する水平方向の光軸の中心は、右側の誘導加熱コイル８ｂの中心に向けられ、左側配置のセンサーケース１１Ａ内の赤外線センサー４が受光する水平方向の光軸の中心は、左側の誘導加熱コイル８ａの中心に向けられ、各誘導加熱コイルの被加熱物と赤外線センサーは１対１となっている（本実施形態においては、中央の誘導加熱コイル８ｃの被加熱物温度を検知する赤外線センサーは具備されていない）。
複数の異なる製品（機種）においては、（右）誘導加熱コイルの水平方向の配置位置が異なることがある。このため、（右）センサーケース１１Ａの位置・取付角度を一定に固定した条件において、複数の製品の（右）誘導加熱コイルの水平方向の配置の中心を結ぶ線の中心に赤外線センサー４の水平方向の光軸が向くように赤外線センサー４を（右）センサーケース１１Ａ内に取り付けることにより、複数の異なる製品（機種）において（右）センサーケース１１Ａを共用化している。
このように、複数の異なる製品（機種）の誘導加熱調理器でセンサーケース１１Ａを共用することで標準化され、製品コストを低くすることができる。 Normally, the center of the horizontal optical axis received by the infrared sensor 4 in the right-side sensor case 11A is directed to the center of the right induction heating coil 8b, and the infrared sensor 4 in the left-side sensor case 11A receives light. The center of the horizontal optical axis is directed to the center of the left induction heating coil 8a, and the object to be heated and the infrared sensor of each induction heating coil are in a one-to-one relationship (in this embodiment, the center An infrared sensor for detecting the temperature of the object to be heated of the induction heating coil 8c is not provided).
In a plurality of different products (models), (right) the horizontal arrangement position of the induction heating coil may be different. For this reason, (right) under the condition that the position and mounting angle of the sensor case 11A are fixed, the horizontal direction of the infrared sensor 4 is centered on the line connecting the centers of the horizontal arrangement of the (right) induction heating coils of a plurality of products. By mounting the infrared sensor 4 in the (right) sensor case 11A so that the optical axis in the direction is directed, the (right) sensor case 11A is shared by a plurality of different products (models).
Thus, it is standardized by sharing the sensor case 11A in the induction heating cookers of a plurality of different products (models), and the product cost can be reduced.

センサーケース１１Ａ及びその締結部材であるねじ１２は、図３及び図６のように筐体１の上面より着脱できるようになっている。つまり、センサーケース１１Ａは、締結部を境に、一部（上部）が筐体上面から突出し、一部（下部）が筐体内（センサーケース取付穴内）に納まるよう筐体上面に取り付けられる。なお、制御基板９ａ，９ｂの制御基板接続ケーブル１３（一方のみ図示）は、筐体内から引き出せる長さであり、筐体外でコネクタ部１４（一方のみ図示）の着脱作業が可能な長さとなっている。   The sensor case 11A and the screw 12 serving as a fastening member thereof can be attached and detached from the upper surface of the housing 1 as shown in FIGS. That is, the sensor case 11A is attached to the upper surface of the housing so that a part (upper part) protrudes from the upper surface of the housing and a part (lower portion) of the sensor case 11A fits in the housing (inside the sensor case mounting hole). Note that the control board connection cable 13 (only one is shown) of the control boards 9a and 9b has a length that can be pulled out from the inside of the casing, and a length that allows the connector portion 14 (only one shown) to be attached and detached outside the casing. Yes.

センサーケース１１Ａの筐体上面と接触しない部分には、図３のように水切部１５が設けられており、センサーケース１１Ａに液体等が伝って流れるのを防止している。また、筐体上面には、センサーケース位置決め穴１６が２ヶ所設けられており、センサーケースの取付け位置・方向の精度を確保している。   As shown in FIG. 3, a drainer 15 is provided at a portion of the sensor case 11 </ b> A that does not come into contact with the upper surface of the housing, thereby preventing liquid or the like from flowing through the sensor case 11 </ b> A. In addition, two sensor case positioning holes 16 are provided on the upper surface of the housing to ensure the accuracy of the mounting position and direction of the sensor case.

センサーケース１１Ａは、大別すると、図４のように前部品１７と後部品１８と上部品１９の３部品で構成される。前後の部品１７，１８が組み合わされた後、外周面が一体的に形成されてなる上部品１９が被せられることで、これらが一体化される。   The sensor case 11A is roughly divided into three parts including a front part 17, a rear part 18, and an upper part 19 as shown in FIG. After the front and rear parts 17 and 18 are combined, an upper part 19 having an outer peripheral surface formed integrally is covered, so that they are integrated.

これを更に詳述すると、センサーケース１１Ａの前部品１７には、赤外線センサー４が受光するための矩形状の窓部１７ａが設けられ、窓部１７ａに矩形状の防水部材（第２の防水部材）２１を介して矩形状の赤外線透過部材５０が嵌め込まれている。赤外線透過部材５０の周縁部は、図６のように上部品１９の窓枠１９ａにて覆われ、内側に収納されるようになっている。これにより、トッププレート３０に載置される被加熱物から放射される赤外線が入射可能となっている。なお、防水部材２１は、ここでは前部品１７の窓部１７ａの形状に合わせて矩形としたが、不定形の防水部材(シリコン系のシーリング剤)等でもよい。また、防水部材に接着性があると、防水性・密閉性が高まるとともに組立の作業性も高まるので、好ましい。   More specifically, the front part 17 of the sensor case 11A is provided with a rectangular window 17a for the infrared sensor 4 to receive light, and the window 17a has a rectangular waterproof member (second waterproof member). ) A rectangular infrared transmission member 50 is fitted through 21. The peripheral portion of the infrared transmitting member 50 is covered with a window frame 19a of the upper part 19 as shown in FIG. Thereby, the infrared rays radiated from the heated object placed on the top plate 30 can be incident. Here, the waterproof member 21 is rectangular according to the shape of the window portion 17a of the front part 17, but may be an indeterminate waterproof member (silicone sealing agent) or the like. In addition, it is preferable that the waterproof member has adhesiveness because the waterproofness and sealing performance are enhanced and the workability of the assembly is enhanced.

センサーケース１１Ａ内の赤外線センサー４の位置決めは、赤外線センサー４が直接搭載されているセンサー回路基板１０の位置決めにより行われる。センサー回路基板１０の配置角度は、図５に示す前部品１７の３ヶ所の基板支持部２２ａ，２２ｂ，２２ｃにより基板面の角度は決まる。基板支持部のうち基板支持部２２ｂは、センサー回路基板１０を図５で見て裏面（基板能動面）を支持する部分とセンサー回路基板１０の下縁を支持する部分を有するＬ形に形成されている。後部品１８には、図４のように基板支持部の対面となる３ヶ所に基板押さえ２３ａ，２３ｂ，２３ｃが設けられており、前記基板支持部２２ａ，２２ｂ，２２ｃと協調してセンサー回路基板１０を挟み込むことにより、センサー回路基板１０を曲げ等の荷重をかけることなく固定することができるようになっている。   The infrared sensor 4 in the sensor case 11A is positioned by positioning the sensor circuit board 10 on which the infrared sensor 4 is directly mounted. The arrangement angle of the sensor circuit board 10 is determined by the board support portions 22a, 22b, and 22c of the three parts of the front part 17 shown in FIG. Of the substrate support portions, the substrate support portion 22b is formed in an L shape having a portion that supports the back surface (substrate active surface) when the sensor circuit substrate 10 is viewed in FIG. 5 and a portion that supports the lower edge of the sensor circuit substrate 10. ing. As shown in FIG. 4, the rear component 18 is provided with substrate holders 23a, 23b, and 23c at three positions facing the substrate support portion, and in cooperation with the substrate support portions 22a, 22b, and 22c, a sensor circuit board is provided. By sandwiching 10, the sensor circuit board 10 can be fixed without applying a load such as bending.

また、センサー回路基板１０の高さ方向の位置決めは、図５のようにセンサー回路基板１０に形成した基板位置決め穴２４と前部品１７に設けられた位置決めピン２５により行われる。   The sensor circuit board 10 is positioned in the height direction by the board positioning holes 24 formed in the sensor circuit board 10 and the positioning pins 25 provided in the front part 17 as shown in FIG.

また、前部品１７の底面に、図５及び図６に示すようにケーブル貫通部２６が設けられ、ケーブル貫通部２６をセンサー回路ケーブル２７が貫通しており、このようにケーブル貫通部２６の形成位置を底面とすることで、重力により液体等は下方へ流れていくことから内部に液体等が侵入するのを防止している。センサー回路ケーブル２７は、言わば中継ケーブルであり、一端にセンサー回路基板コネクタ２８と接続される内部接続コネクタ２９を有するとともに、他端に制御基板接続ケーブル１３のコネクタ部１４と接続される外部接続コネクタ３１を備えている。   Further, as shown in FIGS. 5 and 6, the cable penetration part 26 is provided on the bottom surface of the front part 17, and the sensor circuit cable 27 penetrates the cable penetration part 26. Thus, the cable penetration part 26 is formed. By setting the position as the bottom surface, the liquid or the like flows downward due to gravity, so that the liquid or the like is prevented from entering the inside. The sensor circuit cable 27 is a so-called relay cable, and has an internal connection connector 29 connected to the sensor circuit board connector 28 at one end and an external connection connector connected to the connector portion 14 of the control board connection cable 13 at the other end. 31 is provided.

また、センサーケース１１Ａの筐体上面からの突出部は、筐体上面に形成したセンサーケース取付穴７ｃの周縁部の一部と上方より重畳可能に構成している。   Further, the protruding portion of the sensor case 11A from the upper surface of the housing is configured to be able to overlap with a part of the peripheral edge of the sensor case mounting hole 7c formed on the upper surface of the housing from above.

またセンサーケース１１Ａの前後の部品１７，１８に被せた上部品１９と筐体上面の接合面に、図４及び図６に示すようにカバー部防水部材（第１の防水部材）３２を挿入している。   Further, as shown in FIGS. 4 and 6, a cover waterproof member (first waterproof member) 32 is inserted into the joint surface of the upper part 19 and the upper surface of the housing that covers the parts 17 and 18 before and after the sensor case 11A. ing.

また、筐体上面におけるセンサーケース取付穴７ｃ周辺の少なくとも一部（ここでは前後および製品端側側面）に、図３のように凸条部３３，３４，３５を設けている。   Further, as shown in FIG. 3, protrusions 33, 34, and 35 are provided on at least a part of the upper surface of the housing around the sensor case mounting hole 7 c (here, front and rear and side surfaces on the product end side).

本実施の形態の誘導加熱調理器は、次のような作用、効果を奏する。
センサー回路基板１０に赤外線センサー４を搭載し、これらを一つのセンサーケース１１Ａに納めているので、赤外線センサー４の出力がセンサー回路基板１０に到達するまでの間のノイズ・外乱の影響が減り、測定精度・信頼性を向上させることができる。 The induction cooking device of the present embodiment has the following actions and effects.
Since the infrared sensor 4 is mounted on the sensor circuit board 10 and stored in one sensor case 11A, the influence of noise and disturbance until the output of the infrared sensor 4 reaches the sensor circuit board 10 is reduced. Measurement accuracy and reliability can be improved.

赤外線センサー４及びセンサー回路基板１０の防汚性・防水性が高まるとともに、周囲温度の変化の軽減（断熱効果）により、信頼性、測定精度をより向上させることができる。   The antifouling property and waterproofness of the infrared sensor 4 and the sensor circuit board 10 are enhanced, and the reliability and measurement accuracy can be further improved by reducing the change in ambient temperature (thermal insulation effect).

センサーケース１１Ａは、一部（上部）が筐体上面から突出し、一部（下部）が筐体内に納まるようねじ１２にて筐体上面に取り付けているので、トッププレート３０との位置関係が適切に保たれ、測定精度を向上させることができるとともに、筐体上面からの突出量が少なくなって、調理作業性・意匠性を向上させることができる。   The sensor case 11A is attached to the upper surface of the casing with screws 12 so that a part (upper part) protrudes from the upper surface of the casing and a part (lower part) fits in the casing, so that the positional relationship with the top plate 30 is appropriate. Thus, the measurement accuracy can be improved, and the amount of protrusion from the upper surface of the housing can be reduced, so that the cooking workability and the design can be improved.

センサーケース１１Ａは、筐体上面より着脱可能としているので、組立性・メンテナンス性が向上し、製品コスト・メンテナンスコストを低くできる。   Since the sensor case 11A is detachable from the upper surface of the housing, the assemblability and maintenance are improved, and the product cost and maintenance cost can be reduced.

センサーケース１１Ａの筐体上面からの突出部を、筐体上面に形成したセンサーケース取付穴７ｃの周縁部の少なくとも一部と上方より重畳可能に構成しているので、センサーケース１１Ａと筐体上面の係合部ができ、センサーケース１１Ａの取付作業時等にこれが落下するのを防止することができる。さらに、センサーケース１１Ａと筐体上面が面接触するので、筐体内への液体等の侵入が抑制される。   Since the projecting portion of the sensor case 11A from the upper surface of the housing is configured to be able to overlap with at least a part of the peripheral portion of the sensor case mounting hole 7c formed on the upper surface of the housing from above, the sensor case 11A and the upper surface of the housing Thus, it is possible to prevent the sensor case 11A from dropping when the sensor case 11A is attached. Furthermore, since the sensor case 11A and the upper surface of the housing are in surface contact, the entry of liquid or the like into the housing is suppressed.

制御基板とセンサー回路基板１０とを結線する制御基板接続ケーブル１３を備え、図３のように制御基板接続ケーブル１３間またはこの制御基板接続ケーブル１３とセンサー回路基板１０とを結線したまま筐体外に移動（引き回し）できるようにしているので、制御回路とセンサー回路の接続が容易となり、組立性・メンテナンス性が向上する。   A control board connection cable 13 for connecting the control board and the sensor circuit board 10 is provided, and the control board connection cable 13 is connected between the control board connection cables 13 or the control circuit board connection cable 13 and the sensor circuit board 10 as shown in FIG. Since it can be moved (routed), the connection between the control circuit and the sensor circuit becomes easy, and the assemblability and maintenance are improved.

センサー回路の接合部に中継ケーブルとなるセンサー回路ケーブル２７を設け、その一端の内部接続コネクタ２９をセンサー回路基板コネクタ２８と接続するとともに、他端をセンサーケース１１Ａの前部品１７の底面に設けたケーブル貫通部２６を貫通させ、その末端の外部接続コネクタ３１をセンサーケース１１Ａの外部において制御基板接続ケーブル１３のコネクタ部１４と接続するようにしているので、重力により液体等は下方へ流れていくことから、センサーケース１１Ａへの液体等の侵入が抑制され、防汚性・信頼性が向上する。   A sensor circuit cable 27 serving as a relay cable is provided at a joint portion of the sensor circuit, an internal connection connector 29 at one end thereof is connected to the sensor circuit board connector 28, and the other end is provided on the bottom surface of the front part 17 of the sensor case 11A. Since the cable penetration part 26 is penetrated and the external connection connector 31 at the end is connected to the connector part 14 of the control board connection cable 13 outside the sensor case 11A, the liquid or the like flows downward by gravity. Therefore, intrusion of liquid or the like into the sensor case 11A is suppressed, and the antifouling property and reliability are improved.

センサーケース１１Ａと筐体上面の接合面に、カバー部防水部材（第１の防水部材）３２を挿入しているので、センサーケース１１Ａと筐体上面の接触面からのセンサーケース取付穴７ｃ内への液体等の侵入を抑制することができる。   Since the cover portion waterproof member (first waterproof member) 32 is inserted into the joint surface between the sensor case 11A and the upper surface of the housing, the sensor case mounting hole 7c from the contact surface of the sensor case 11A and the upper surface of the housing is inserted. Intrusion of liquid or the like can be suppressed.

筐体上面におけるセンサーケース取付穴７ｃ周辺の少なくとも一部（前後および製品端側側面）に、凸条部３３，３４，３５を設けているので、凸条部３３はトッププレート上の被加熱物である液体（お湯や煮汁等）が筐体上面に溢れた場合等にセンサーケース取付穴７ｃへ侵入するのを抑制することができる。また、凸条部３４，３５は筐体が設置されるシステムキッチンの上面からのセンサーケース取付穴７ｃへの液体の侵入を抑制することができる。   Since the protrusions 33, 34, and 35 are provided on at least a part of the upper surface of the housing around the sensor case mounting hole 7c (front and rear and product end side surfaces), the protrusions 33 are heated objects on the top plate. It is possible to prevent the liquid (hot water, boiled juice, etc.) that is spilled into the sensor case mounting hole 7c when the upper surface of the casing overflows. Further, the protrusions 34 and 35 can suppress liquid from entering the sensor case mounting hole 7c from the upper surface of the system kitchen where the housing is installed.

センサーケース１１Ａの筐体上面からの突出部の最も外側となる上部品１９の外周面を一体的に形成しているので、図２のように通風口グリル２ｂと一体のカバー部材３ｂを外した状態で、センサーケース１１Ａの視認できる部位に継ぎ目が無く、したがってセンサーケース１１Ａ内への液体の流入等を抑制することができる。   Since the outer peripheral surface of the upper part 19 which is the outermost part of the protruding portion from the upper surface of the housing of the sensor case 11A is integrally formed, the cover member 3b integrated with the ventilation grill 2b is removed as shown in FIG. In the state, there is no seam in the visible part of the sensor case 11A, and therefore the inflow of liquid into the sensor case 11A can be suppressed.

センサーケース１１Ａの筐体上面からの突出部となる上部品１９は、前面に開口部となる窓枠１９ａを有し、窓枠１９ａの内側に前部品１７の窓部１７ａに嵌め込まれている矩形状の赤外線透過部材５０が配置され、赤外線透過部材５０の周縁部が上部品１９の窓枠１９ａの縁にて覆われるようにしているので、赤外線透過部材５０の矩形状周縁部が外面に露出せず、ユーザーが触ってケガ等をすることがなく、安全性が確保されるとともに、赤外線透過部材５０とセンサーケースすなわち上部品１９との接触面が増加し、上部品１９と赤外線透過部材５０との隙間からの液体の侵入等が抑制される。さらに、赤外線透過部材５０の周縁部を前部品１７によって支持することにより、赤外線透過部材５０の強度を向上させることができ、外部からの力・衝撃への耐力が向上する。   The upper part 19 that is a protruding part from the upper surface of the housing of the sensor case 11A has a window frame 19a that is an opening on the front surface, and a rectangular shape that is fitted into the window part 17a of the front part 17 inside the window frame 19a. Since the shape of the infrared transmitting member 50 is arranged and the peripheral edge of the infrared transmitting member 50 is covered with the edge of the window frame 19a of the upper part 19, the rectangular peripheral edge of the infrared transmitting member 50 is exposed to the outer surface. Without being touched by the user, the safety is ensured, and the contact surface between the infrared transmitting member 50 and the sensor case, that is, the upper component 19 is increased, and the upper component 19 and the infrared transmitting member 50 are increased. Intrusion of liquid from the gap is suppressed. Furthermore, by supporting the peripheral part of the infrared transmitting member 50 by the front part 17, the strength of the infrared transmitting member 50 can be improved, and the resistance to external force and impact is improved.

センサーケース１１Ａの前部品１７の窓部１７ａと赤外線透過部材５０の接触面の間に防水部材（第２の防水部材）２１を挿入しているので、赤外線透過部材５０と前部品１７の接触面の隙間からの液体の侵入等を抑制することができる。   Since the waterproof member (second waterproof member) 21 is inserted between the window 17a of the front part 17 of the sensor case 11A and the contact surface of the infrared transmission member 50, the contact surface of the infrared transmission member 50 and the front component 17 It is possible to suppress the intrusion of liquid from the gap.

センサーケース１１Ａの筐体上面からの突出部の少なくとも一部を覆うカバー部材３ｂを設けているので、センサーケース１１Ａへの外部からの物の衝突や液体の侵入を抑制することができる。   Since the cover member 3b that covers at least a part of the protruding portion from the upper surface of the housing of the sensor case 11A is provided, it is possible to suppress collision of an object from the outside and intrusion of liquid into the sensor case 11A.

カバー部材３ｂは、赤外線透過部材５ｂで覆われた窓部を有し、通風口グリル２ｂと一体化され、筐体上面より着脱可能であるため、窓部の清掃が容易で、測定の精度を維持することが容易である。   The cover member 3b has a window portion covered with the infrared transmitting member 5b, is integrated with the ventilation grille 2b, and is detachable from the upper surface of the housing, so that the window portion can be easily cleaned and the measurement accuracy is improved. Easy to maintain.

カバー部材３ｂは、通風性を有し、吸気または排気を行う通気口の少なくとも一部を覆うように設けられているので、吸排気口のグリルを兼用させることが可能で、その場合には部品点数が減らせ低コスト化できる。また、このようにカバー部材３ｂに吸排気口のグリルを兼用させた場合には、吸排気口のグリルと赤外線透過部材５ｂの清掃が同時に行え、メンテナンス性が向上する。   The cover member 3b is ventilated and is provided so as to cover at least a part of the air vent that performs intake or exhaust, so that the grill of the air intake and exhaust can also be used. The number of points can be reduced and the cost can be reduced. Further, when the cover member 3b is also used as an intake / exhaust port grill, cleaning of the intake / exhaust port grill and the infrared transmitting member 5b can be performed at the same time, thereby improving maintainability.

なお、赤外線透過部材の表面に反射防止膜を設けることは好ましい。この場合には、赤外線の透過率が向上し、測定精度が更に向上する。   In addition, it is preferable to provide an antireflection film on the surface of the infrared transmitting member. In this case, the infrared transmittance is improved and the measurement accuracy is further improved.

また、赤外線透過部材の表面に特定波長透過膜を設けることは好ましい。この場合には、不要な波長の透過が無くなり、赤外線センサー４の外乱要因が減り、精度が向上する。   Further, it is preferable to provide a specific wavelength transmission film on the surface of the infrared transmission member. In this case, transmission of unnecessary wavelengths is eliminated, the disturbance factor of the infrared sensor 4 is reduced, and the accuracy is improved.

筐体上面のセンサーケース取付穴７ｃを、吸気または排気の通風が可能な吸気口７ａ，７ｂまたは排気口６と同一の開口部に形成してあるので、筐体上面の加工が簡単で済み、コストを低減することができる。さらに、筐体上面のスペース効率が高まり、その分、吸気口・排気口の面積を大きくできて、圧力損失が低減でき、冷却ファン騒音の低減化が図れる。   The sensor case mounting hole 7c on the upper surface of the housing is formed in the same opening as the intake ports 7a and 7b or the exhaust port 6 through which intake or exhaust air can be ventilated. Cost can be reduced. Furthermore, the space efficiency on the upper surface of the housing is increased, and the area of the intake port / exhaust port can be increased accordingly, pressure loss can be reduced, and cooling fan noise can be reduced.

また、複数の異なる製品（機種）の誘導加熱調理器において、（右）誘導加熱コイルの水平方向の配置位置が異なる場合においても、（右）センサーケース１１Ａの位置・取付角度を一定に固定した条件において、複数の製品の（右）誘導加熱コイルの水平方向の配置の中心を結ぶ線の中心に赤外線センサー４の水平方向の光軸が向くように赤外線センサー４を（右）センサーケース１１Ａ内に取り付けることにより、複数の異なる製品（機種）において（右）センサーケース１１Ａを共用化でき、標準化され、製品コストを低くすることができる。   In addition, in the induction heating cooker of a plurality of different products (models), (right) even when the horizontal arrangement positions of the induction heating coils are different, (right) the position and mounting angle of the sensor case 11A are fixed. Under the conditions, the infrared sensor 4 is placed on the right side of the sensor case 11A so that the horizontal optical axis of the infrared sensor 4 faces the center of a line connecting the centers of the horizontal arrangements of the (right) induction heating coils of a plurality of products. By attaching to the sensor case, (right) the sensor case 11A can be shared in a plurality of different products (models), standardized, and product cost can be reduced.

実施の形態２．
図７は本発明の実施の形態２に係る誘導加熱調理器の片側の通風口グリルを分解した状態の斜視図、図８はそのセンサーケース取付穴部の分解斜視図、図９はそのセンサーケースの分解斜視図、図１０はそのカバー部材を含むセンサーケース取付穴部の側面断面図であり、各図中、前述の実施の形態１のものと同一機能部分には同一符号を付してある。 Embodiment 2. FIG.
7 is a perspective view of a state where the one side ventilation grill of the induction heating cooker according to the second embodiment of the present invention is disassembled, FIG. 8 is an exploded perspective view of the sensor case mounting hole, and FIG. 9 is the sensor case. FIG. 10 is a side sectional view of the sensor case mounting hole including the cover member. In each figure, the same reference numerals are given to the same functional parts as those in the first embodiment. .

本実施の形態の誘導加熱調理器は、図７乃至図１０のようにセンサーケース１１Ｂが、前述の実施の形態１のものと同様に、大別して前部品１７と後部品１８と上部品１９の３部品で構成される。前後の部品１７，１８が組み合わされた後、外周面が一体的に形成されてなる上部品１９が被せられることで、これらが一体化される。   As shown in FIGS. 7 to 10, the induction heating cooker of this embodiment is roughly divided into the sensor case 11B of the front part 17, the rear part 18, and the upper part 19 in the same manner as in the first embodiment. Consists of three parts. After the front and rear parts 17 and 18 are combined, an upper part 19 having an outer peripheral surface formed integrally is covered, so that they are integrated.

これを更に詳述すると、センサーケース１１Ｂの前部品１７には、赤外線センサー４が受光するための円形の窓部（開口部）１７ｂが設けられている。この窓部１７ｂには、前述の実施の形態１で説明したような赤外線透過部材は取り付けられておらず、窓部１７ｂの裏面エッジ部と赤外線センサー４の先端の間に図９のように防水部材（第２の防水部材）４１が挿入されているのみである。ここでは、赤外線透過部材は、図１０に示すようにカバー部材（片側のみ示す）３ｂの窓部に取り付けられた赤外線透過部材５ｂだけであり、それより内側には設けられていない。   More specifically, the front part 17 of the sensor case 11B is provided with a circular window (opening) 17b for the infrared sensor 4 to receive light. The window portion 17b is not attached with the infrared transmitting member as described in the first embodiment, and is waterproof between the back surface edge portion of the window portion 17b and the tip of the infrared sensor 4 as shown in FIG. Only the member (second waterproof member) 41 is inserted. Here, as shown in FIG. 10, the infrared transmitting member is only the infrared transmitting member 5b attached to the window portion of the cover member (only one side is shown) 3b, and is not provided on the inner side.

また、センサーケース１１Ｂの前部品１７の底部にコネクタ貫通部が形成され、センサー回路基板コネクタ２８がセンサー回路基板１０からコネクタ貫通部まで延出して設けられていて、センサー回路基板コネクタ２８と制御基板接続ケーブル１３のコネクタ部１４とを直接接続することで、制御回路とセンサー回路とが結線されるようにしたものである。それ以外の構成は前述の実施の形態１のものと同一であり、実施の形態１のもつ基本機能は全て備えているものである。   Further, a connector penetrating portion is formed at the bottom of the front part 17 of the sensor case 11B, and a sensor circuit board connector 28 is provided extending from the sensor circuit board 10 to the connector penetrating portion. The control circuit and the sensor circuit are connected by directly connecting the connector portion 14 of the connection cable 13. Other configurations are the same as those of the first embodiment described above, and all the basic functions of the first embodiment are provided.

本実施の形態の誘導加熱調理器においては、センサーケース１１Ｂの前部品１７の窓部１７ｂの裏面エッジ部と赤外線センサー４の先端の間に挿入した防水部材４１により、前部品１７の窓部１７ｂと赤外線センサー４の隙間から液体等が侵入するのを抑制することができる。   In the induction heating cooker of the present embodiment, the window 17b of the front part 17 is provided by the waterproof member 41 inserted between the back edge of the window 17b of the front part 17 of the sensor case 11B and the tip of the infrared sensor 4. Intrusion of liquid or the like from the gap between the infrared sensor 4 and the infrared sensor 4 can be suppressed.

また、赤外線透過部材は、カバー部材３ｂの窓部に取り付けられた赤外線透過部材５ｂだけであるので、赤外線透過部材の数が減った分、赤外線透過部材そのものが光を吸収することによる損失を低減することができ、赤外線の透過量を増やすことができる。このため、測定精度が向上する。   Further, since the infrared transmitting member is only the infrared transmitting member 5b attached to the window portion of the cover member 3b, the loss due to the infrared transmitting member itself absorbing light is reduced as the number of infrared transmitting members is reduced. It is possible to increase the amount of infrared transmission. For this reason, the measurement accuracy is improved.

また、センサーケース１１Ｂの前部品１７の底部にコネクタ貫通部を形成し、センサー回路基板コネクタ２８をセンサー回路基板１０からコネクタ貫通部まで延出して設け、制御基板接続ケーブル１３のコネクタ部１４と直接接続できるようにしているので、基板の部品であるコネクタが露出せず、液体等は重力により下方へ流れ、コネクタ貫通部への侵入が抑制されることから、防汚性・信頼性を向上することができる。さらに、中継ケーブルが不要となり、その分、ケーブルやコネクタの数が少なくて済み、部品コスト、組立コストを低くでき、製品コストを下げることができる。   In addition, a connector penetrating portion is formed at the bottom of the front part 17 of the sensor case 11B, and a sensor circuit board connector 28 is provided extending from the sensor circuit board 10 to the connector penetrating portion, and is directly connected to the connector portion 14 of the control board connecting cable 13. Since it is possible to connect, the connector, which is a component of the board, is not exposed, and liquid etc. flows downward due to gravity, so that intrusion into the connector penetration is suppressed, improving antifouling properties and reliability be able to. Furthermore, a relay cable is not required, and the number of cables and connectors can be reduced correspondingly, so that component costs and assembly costs can be reduced, and product costs can be reduced.

実施の形態３．
図１１は本発明の実施の形態３に係る誘導加熱調理器のトッププレートを外し、片側の通風口グリルを分解した状態の斜視図、図１２はその基板ケースユニットとチャンバを分解した状態の斜視図、図１３はそのセンサーケースの分解斜視図、図１４はそのカバー部材を含むセンサーケース取付穴部の側面断面図であり、各図中、前述の実施の形態１のものと同一機能部分には同一符号を付してある。 Embodiment 3 FIG.
FIG. 11 is a perspective view of the induction heating cooker according to Embodiment 3 of the present invention with the top plate removed and the one side vent grill is disassembled, and FIG. 12 is the perspective view of the substrate case unit and chamber disassembled. FIG. 13 is an exploded perspective view of the sensor case, and FIG. 14 is a side sectional view of the sensor case mounting hole including the cover member. In each figure, the same functional portion as that of the first embodiment is described. Are given the same reference numerals.

本実施の形態の誘導加熱調理器は、図１１乃至図１４のようにセンサーケース１１Ｃが、前述の実施の形態１のものと同様に、大別して前部品１７と後部品１８と上部品１９の３部品で構成される。前後の部品１７，１８が組み合わされた後、外周面が一体的に形成されてなる上部品１９が被せられることで、これらが一体化される。   As shown in FIGS. 11 to 14, the induction heating cooker of the present embodiment is roughly divided into the sensor case 11C of the front part 17, the rear part 18, and the upper part 19 in the same manner as in the first embodiment. Consists of three parts. After the front and rear parts 17 and 18 are combined, an upper part 19 having an outer peripheral surface formed integrally is covered, so that they are integrated.

これを更に詳述すると、センサーケース１１Ｃの前部品１７には、赤外線センサー４が受光するための矩形状の窓部１７ａが設けられ、窓部１７ａに矩形状の防水部材（第２の防水部材）２１を介して矩形状の赤外線透過部材５０が嵌め込まれている。赤外線透過部材５０の周縁部は、上部品１９の窓枠１９ａにて覆われ、内側に収納されるようになっている。なお、本実施の形態においては、図１４に示すようにカバー部材３ｂ（３ａ）の窓部３ｃに赤外線透過部材が取り付けられておらず、カバー部材３ｂ（３ａ）の窓部３ｃを通して空気を通風できるようにしている。   More specifically, the front part 17 of the sensor case 11C is provided with a rectangular window 17a for the infrared sensor 4 to receive light, and the window 17a has a rectangular waterproof member (second waterproof member). ) A rectangular infrared transmission member 50 is fitted through 21. The peripheral edge portion of the infrared transmitting member 50 is covered with the window frame 19a of the upper part 19 and stored inside. In the present embodiment, as shown in FIG. 14, no infrared transmitting member is attached to the window 3c of the cover member 3b (3a), and air is passed through the window 3c of the cover member 3b (3a). I can do it.

また、センサーケース１１Ｃの前部品１７における筐体内への収納部の前面側に、吸気口１７ｄが設けられているとともに、センサーケース１１Ｃの筐体上面からの突出部である上部品１９の窓枠１９ａに、前部品１７における赤外線透過部材配置面に沿うスリット状のノズルに形成された排気口１９ｂが設けられており、かつこれら吸気口１７ｄと排気口１９ｂの間が風路１７ｃにより通風可能に構成されている。これにより、赤外線透過部材５０をエアカーテンによって保護することが可能となり、赤外線透過部材５０への塵埃や油煙の付着、湯気（水蒸気）の結露を抑制することができる。さらに、カバー部材３ｂ内の圧力が高まることで、カバー部材３ｂの窓部３ｃから室内に空気が放出されるため、カバー部材３ｂ内への塵埃や油煙の侵入も抑制される。カバー部材３ｂの内部と通風口グリル２ｂ部は、ダクトによって概ね分離されており、カバー部材３ｂから吹出された空気が直接吸気口から吸われることはない。特に、カバー部材３ｂの吹出口となる窓部３ｃは、筐体上面より高い位置に配置されるため、液体等の侵入は抑制される。   In addition, an air inlet 17d is provided on the front side of the housing part in the housing of the front part 17 of the sensor case 11C, and the window frame of the upper part 19 which is a protruding part from the top surface of the housing of the sensor case 11C. 19a is provided with an exhaust port 19b formed in a slit-like nozzle along the infrared transmitting member arrangement surface in the front part 17, and the air passage 17c allows ventilation between the intake port 17d and the exhaust port 19b. It is configured. Thereby, the infrared transmitting member 50 can be protected by the air curtain, and adhesion of dust and oil smoke to the infrared transmitting member 50 and condensation of steam (water vapor) can be suppressed. Furthermore, since the pressure in the cover member 3b is increased, air is released into the room from the window 3c of the cover member 3b, so that intrusion of dust and oil smoke into the cover member 3b is also suppressed. The inside of the cover member 3b and the vent hole grill 2b are generally separated by a duct, and the air blown from the cover member 3b is not directly sucked from the intake port. In particular, since the window 3c serving as the outlet of the cover member 3b is disposed at a position higher than the upper surface of the housing, intrusion of liquid or the like is suppressed.

また、本実施の形態の誘導加熱調理器においては、図１１のように前側の誘導加熱コイル８ａ，８ｂ（一方のみ図示）の下方に、上面に吹出口６１を有し、基板ケースユニット７０に接続されたチャンバ６０が配置されている。なお、ここで重要なことは筐体内の圧力を冷却風により高めるようにすることであり、チャンバ６０は必ずしも必要ではない。   In addition, in the induction heating cooker of the present embodiment, as shown in FIG. 11, an air outlet 61 is provided on the upper surface below the front induction heating coils 8 a and 8 b (only one is shown), and the substrate case unit 70 is provided. A connected chamber 60 is arranged. Here, what is important is that the pressure in the housing is increased by cooling air, and the chamber 60 is not necessarily required.

基板ケースユニット７０には、図１２のように電動機７６によって駆動される冷却ファン７１が設けられ、回路部品や誘導加熱コイルの冷却を行うための冷却風を送風している。冷却風は、吸気口７ｂに接続される吸気ダクト７２から吸引され、基板ケース吸気口７３から基板ケース内に入り、冷却ファン７１によりケース内の制御回路基板７４の発熱部品を冷却した後、基板ケース排気口７５より排気されるようになっている。また、基板ケース排気口７５から排気された冷却風は、基板ケース排気口７５に接続されるチャンバ吸気口６２よりチャンバ６０に流入して、チャンバ上面の吹出口６１より上方の誘導加熱コイル８ｂ（図２参照）の底面に吹き付けられ、誘導加熱コイル８ｂを冷却した後、筐体上面後方の排気口６へ流れ、筐体外へ排気されるようになっている。   The board case unit 70 is provided with a cooling fan 71 driven by an electric motor 76 as shown in FIG. 12, and blows cooling air for cooling circuit components and induction heating coils. The cooling air is sucked from the air intake duct 72 connected to the air inlet 7b, enters the board case from the board case air inlet 73, and cools the heat generating components of the control circuit board 74 in the case by the cooling fan 71, The air is exhausted from the case exhaust port 75. In addition, the cooling air exhausted from the substrate case exhaust port 75 flows into the chamber 60 from the chamber intake port 62 connected to the substrate case exhaust port 75, and the induction heating coil 8b ( 2), the induction heating coil 8b is cooled, and then flows to the exhaust port 6 at the rear of the upper surface of the housing to be exhausted out of the housing.

なお、電動機７６により冷却ファン７１が駆動されて筐体内に冷却風が送風されると、筐体内の圧力が高くなる。これにより、圧力の低い筐体１の開口部（排気口６や前述したセンサーケース１１Ｃの排気口１９ｂなど）に向かう気流が形成される。センサーケース１１Ｃからの吹出空気の清浄性を保つため、筐体前面側から外部の空気を取り入れる、又はセンサーケース１１Ｃの吸込口に流入する空気は空気清浄フィルターを通した後とする、等の手段を講じてもよい。なお、それ以外の構成（カバー部材３ｂ（３ａ）の窓部３ｃに赤外線透過部材が取り付けられていない構成を除く）は、前述の実施の形態１のものと同一であり、実施の形態１のもつ基本機能は全て備えているものである。   Note that when the cooling fan 71 is driven by the electric motor 76 and the cooling air is blown into the housing, the pressure in the housing increases. Thereby, the airflow which goes to the opening part (exhaust port 6 or exhaust port 19b of sensor case 11C mentioned above) of the housing | casing 1 with a low pressure is formed. In order to maintain the cleanliness of the air blown from the sensor case 11C, outside air is taken in from the front side of the housing, or the air flowing into the suction port of the sensor case 11C passes through the air cleaning filter, etc. May be taken. The other configurations (except for the configuration in which the infrared transmitting member is not attached to the window 3c of the cover member 3b (3a)) are the same as those of the first embodiment described above. It has all basic functions.

このように、本実施の形態の誘導加熱調理器においては、センサーケース１１Ｃの筐体内への収納部となる前部品１７下部の前面側に、吸気口１７ｄを設けるとともに、センサーケース１１Ｃの筐体上面からの突出部となる上部品１９の窓枠１９ａに、赤外線透過部材配置面に沿う排気口を設け、これら吸気口と排気口の間を通風可能としたので、カバー部材３ｂ（３ａ）の窓部３ｃに赤外線透過部材を取り付ける必要がなくなって、赤外線透過部材の数を減らせ、赤外線透過部材を透過する光が赤外線透過部材により吸収されることによる検出光（赤外線）の減衰（損失）を低減することができ、測定精度が向上する。さらに、赤外線透過部材５０への塵埃や油煙の付着、湯気（水蒸気）の結露をエアカーテンにより抑制することができる。   As described above, in the induction heating cooker according to the present embodiment, the intake port 17d is provided on the front side of the lower part of the front part 17 serving as a storage portion in the housing of the sensor case 11C, and the housing of the sensor case 11C. The window frame 19a of the upper part 19 serving as a protruding portion from the upper surface is provided with an exhaust port along the infrared transmitting member arrangement surface so that air can be passed between the intake port and the exhaust port, so that the cover member 3b (3a) There is no need to attach an infrared transmitting member to the window portion 3c, the number of infrared transmitting members can be reduced, and the attenuation (loss) of detection light (infrared) caused by the light transmitted through the infrared transmitting member being absorbed by the infrared transmitting member. The measurement accuracy can be improved. Furthermore, adhesion of dust and oily smoke to the infrared transmitting member 50 and condensation of steam (water vapor) can be suppressed by the air curtain.

１ 筐体、３ａ，３ｂ カバー部材、３ｃ カバー部材の窓部、４ 赤外線センサー、５ａ，５ｂ，５０ 赤外線透過部材、６ 排気口、７ａ，７ｂ 吸気口、７ｃ センサーケース取付穴、８ａ，８ｂ，８ｃ 誘導加熱コイル、９ａ，９ｂ 制御回路、１０ センサー回路基板、１１Ａ，１１Ｂ，１１Ｃ センサーケース、１３ 接続ケーブル、１４ 接続ケーブルコネクタ、１７ｃ センサーケースの風路、１７ｄ センサーケースの吸気口、１９ 上部品（センサーケースの突出部）、１９ａ 突出部の開口部、１９ｂ センサーケースの排気口、２７ センサー回路ケーブル、２８ センサー回路基板コネクタ（センサー回路の接合部）、３０ トッププレート、３１ 外部接続コネクタ、３２ カバー部防水部材（第１の防水部材）、３３，３４，３５ 凸条部、４１ 防水部材（第２の防水部材）。   DESCRIPTION OF SYMBOLS 1 Case, 3a, 3b Cover member, 3c Cover member window part 4 Infrared sensor, 5a, 5b, 50 Infrared transmitting member, 6 Exhaust port, 7a, 7b Inlet port, 7c Sensor case mounting hole, 8a, 8b, 8c induction heating coil, 9a, 9b control circuit, 10 sensor circuit board, 11A, 11B, 11C sensor case, 13 connection cable, 14 connection cable connector, 17c sensor case air passage, 17d sensor case air inlet, 19 upper parts (Projection part of sensor case), 19a opening part of projection part, 19b exhaust port of sensor case, 27 sensor circuit cable, 28 sensor circuit board connector (joint part of sensor circuit), 30 top plate, 31 external connection connector, 32 Cover waterproof member (first waterproof member) 33, 34, 5 ridges, 41 waterproof member (second waterproof member).

Claims (19)

筐体の上面に設置されて被加熱物を載置するトッププレートと、
前記トッププレートの下側に設けた誘導加熱コイルと、
前記被加熱物から放射される赤外線量を検出する赤外線センサーと、
前記赤外線センサーの出力の少なくとも一部を処理するセンサ回路が設けられたセンサー回路基板と、
前記センサー回路基板の出力に基づき前記誘導加熱コイルを駆動する制御回路と、を備え、
前記赤外線センサーと前記センサー回路基板を一つのセンサーケースに納め、該センサーケースは、一部が前記筐体上面から突出し、一部が前記筐体内に納まるよう該筐体上面に、当該筐体上面より着脱可能に取り付けたことを特徴とする誘導加熱調理器。 A top plate that is placed on the top surface of the housing to place an object to be heated;
An induction heating coil provided under the top plate;
An infrared sensor for detecting the amount of infrared radiation emitted from the object to be heated;
A sensor circuit board provided with a sensor circuit for processing at least a part of the output of the infrared sensor;
A control circuit for driving the induction heating coil based on the output of the sensor circuit board,
The infrared sensor and the sensor circuit board are accommodated in a single sensor case, and the sensor case is partially protruded from the upper surface of the casing, and the upper surface of the casing is placed on the upper surface of the casing so that a part is accommodated in the casing. An induction heating cooker that is detachably attached. 前記センサーケースの前記筐体上面からの突出部は、前記筐体上面に形成したセンサーケース取付穴の周縁部の少なくとも一部と上方より重畳可能に構成されていることを特徴とする請求項１記載の誘導加熱調理器。 Protrusion from the casing upper surface of the sensor case, claim 1, characterized in that is configured to be superimposed from at least a portion and the upper peripheral edge of the sensor case mounting hole formed in the casing upper surface serial induction heating cooker of the mounting. 前記制御回路と前記センサー回路基板とを結線する接続ケーブルを備え、該接続ケーブル間またはこの接続ケーブルと前記センサー回路基板の接合部は、接続されたまま筐体外に移動できることを特徴とする請求項１又は請求項２記載の誘導加熱調理器。 A connection cable for connecting the control circuit and the sensor circuit board is provided, and a joint portion between the connection cables or the connection cable and the sensor circuit board can be moved out of the casing while being connected. The induction heating cooker according to claim 1 or 2 . 前記センサー回路の接合部は、一端が前記センサー回路基板に接続されるとともに他端に外部接続コネクタを有し前記センサーケースの底面を貫通するセンサー回路ケーブルを備え、該センサー回路ケーブルの前記外部接続コネクタが、前記接続ケーブルに設けられた接続ケーブルコネクタと前記センサーケースの外部において接続されることで、前記制御回路と前記センサー回路基板とが結線されることを特徴とする請求項３記載の誘導加熱調理器。 The joint portion of the sensor circuit includes a sensor circuit cable having one end connected to the sensor circuit board and having an external connection connector at the other end and penetrating the bottom surface of the sensor case, and the external connection of the sensor circuit cable 4. The induction according to claim 3 , wherein the control circuit and the sensor circuit board are connected by connecting a connector to a connection cable connector provided on the connection cable outside the sensor case. Cooking cooker. 前記センサーケースの底部にコネクタ貫通部が形成され、前記センサー回路の接合部は、前記センサー回路基板から前記コネクタ貫通部まで延出するセンサー回路基板コネクタを備え、該センサー回路基板コネクタが、前記接続ケーブルに設けられた接続ケーブルコネクタと直接接続されることで、前記制御回路と前記センサー回路基板とが結線されることを特徴とする請求項３記載の誘導加熱調理器。 A connector penetrating portion is formed at the bottom of the sensor case, and a joint portion of the sensor circuit includes a sensor circuit board connector extending from the sensor circuit board to the connector penetrating portion, and the sensor circuit board connector is connected to the sensor circuit board. The induction heating cooker according to claim 3 , wherein the control circuit and the sensor circuit board are connected by being directly connected to a connection cable connector provided on the cable. 前記センサーケースと前記筐体上面の接合面に、第１の防水部材を挿入したことを特徴とする請求項１乃至請求項５のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 5 , wherein a first waterproofing member is inserted into a joint surface between the sensor case and the upper surface of the housing. 筐体上面におけるセンサーケース取付穴周辺の少なくとも一部に、凸条部を設けたことを特徴とする請求項１乃至請求項６のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 6 , wherein a protruding strip portion is provided on at least a part of the upper surface of the housing around the sensor case mounting hole. 前記センサーケースの前記筐体上面からの突出部の外周面を一体的に形成してなることを特徴とする請求項１乃至請求項７のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 7 , wherein an outer peripheral surface of a protruding portion from the upper surface of the housing of the sensor case is integrally formed. 前記センサーケースの前記筐体上面からの突出部は、前面に開口部を有し、該開口部の周囲と前記赤外線センサーの間には第２の防水部材が挿入されてなることを特徴とする請求項１乃至請求項８のいずれかに記載の誘導加熱調理器。 The protrusion of the sensor case from the top surface of the housing has an opening on the front surface, and a second waterproof member is inserted between the periphery of the opening and the infrared sensor. The induction heating cooker according to any one of claims 1 to 8 . 前記センサーケースの前記筐体上面からの突出部は、前面に開口部を有し、該開口部の内側に赤外線透過部材が配置され、該赤外線透過部材の周縁部が前記開口部の縁にて覆われてなることを特徴とする請求項１乃至請求項８のいずれかに記載の誘導加熱調理器。 The projecting portion of the sensor case from the upper surface of the housing has an opening on the front surface, an infrared transmitting member is disposed inside the opening, and the peripheral portion of the infrared transmitting member is at the edge of the opening. The induction heating cooker according to any one of claims 1 to 8 , wherein the induction heating cooker is covered. 前記センサーケースと前記赤外線透過部材の接触面の間に防水部材を挿入したことを特徴とする請求項１０記載の誘導加熱調理器。 The induction heating cooker according to claim 10 , wherein a waterproof member is inserted between contact surfaces of the sensor case and the infrared transmitting member. 前記センサーケースの前記筐体内への収納部に、吸気口を設けるとともに、該センサーケースの前記筐体上面からの突出部に、前記赤外線透過部材の外周の少なくとも一部に排気口を設け、これら吸気口と排気口の間を通風可能としたことを特徴とする請求項１０又は請求項１１記載の誘導加熱調理器。 The sensor case is provided with an intake port in the housing portion of the sensor case, and the sensor case is provided with an exhaust port at a part of the outer periphery of the infrared transmitting member at a protruding portion from the upper surface of the case. The induction heating cooker according to claim 10 or 11 , wherein ventilation is possible between the air inlet and the air outlet. 前記センサーケースの前記筐体上面からの突出部の少なくとも一部を覆うカバー部材を具備することを特徴とする請求項１乃至請求項１２のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 1 to 12 , further comprising a cover member that covers at least a part of the protruding portion of the sensor case from the upper surface of the housing. 前記センサーケースの前記筐体上面からの突出部の少なくとも一部を覆うカバー部材を備え、
前記カバー部材は、赤外線透過部材で覆われた窓部を有し、前記筐体上面より着脱可能であることを特徴とする請求項１０乃至請求項１２のいずれかに記載の誘導加熱調理器。 A cover member that covers at least a part of the protruding portion of the sensor case from the upper surface of the housing;
The induction heating cooker according to any one of claims 10 to 12, wherein the cover member has a window portion covered with an infrared transmitting member and is detachable from an upper surface of the housing. 前記カバー部材は、通風性を有し、該カバー部材によって吸気または排気を行う通気口の少なくとも一部が覆われてなることを特徴とする請求項１３記載の誘導加熱調理器。 14. The induction heating cooker according to claim 13 , wherein the cover member has air permeability, and at least a part of a vent hole for intake or exhaust is covered by the cover member. 前記赤外線透過部材の表面に反射防止膜を備えることを特徴とする請求項１０乃至請求項１２、１４のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 10 to 12 , wherein an antireflection film is provided on a surface of the infrared transmitting member. 前記赤外線透過部材の表面に特定波長透過膜を備えることを特徴とする請求項１０乃至請求項１２、１４、１６のいずれかに記載の誘導加熱調理器。 The induction heating cooker according to any one of claims 10 to 12 , 14 , and 16 , further comprising a specific wavelength transmission film on a surface of the infrared transmission member. 前記筐体上面の前記センサーケースを取り付ける開口部は、吸気または排気の通風が可能な開口部と同一の開口部であることを特徴とする請求項１乃至請求項１７のいずれかに記載の誘導加熱調理器。 Opening for mounting said sensor case of the housing top surface is derived according to any one of claims 1 to 17, characterized in that the same opening portion and the opening portion capable of ventilation intake or exhaust Cooking cooker. 複数の誘導加熱コイルの配置位置があり、前記赤外線センサーを共有する場合は、前記赤外線センサーは、その光軸が各誘導加熱コイルの中心を結ぶ線の中間位置に向くように配置することを特徴とする請求項１乃至請求項１８のいずれかに記載の誘導加熱調理器。 When there are a plurality of induction heating coil arrangement positions, and the infrared sensor is shared, the infrared sensor is arranged so that its optical axis faces an intermediate position of a line connecting the centers of the induction heating coils. The induction heating cooker according to any one of claims 1 to 18 .
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