JP2004248663A - Alternating electric field generating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alternating electric field generating system capable of efficiently preventing an edible oil, etc., from being deteriorated, with a simple structure. <P>SOLUTION: This system is equipped with an alternating current supply part 20 for generating a high voltage and an electric field generating part to which the high voltage of an alternating current is applied by the alternating current supply part, wherein the electric field generating part includes a first plate 11 which is formed out of an electrically conductive material and has a porous flat shape and a high voltage supplied part 40 which is formed out of the electrically conductive material, the first plate 11 is received in the high voltage supplied part 40, the alternating current supply part 20 has at least a pair of terminals, one of the terminals is connected with the first plate 11 by a first high-voltage wire 30, the other terminal is connected with the high voltage supplied part 40 by a second high-voltage wire 31, and the first plate is covered with an electrical insulating film. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

なお、芳香族ポリイミドのワニスの物性を図１６に示す。
【００２６】
一方、第二プレート１２も、アルミニウム，ステンレス，銅，銅合金などの導電性材料により略長方形状の平板に形成されており、その大きさや板厚も第一プレート１１の大きさと同一程度に設定されている。
【００２７】
この第二プレート１２には、高圧線３１取付用の孔１２ａが面に対して垂直な方向に穿設されており、この孔１２ａに挿入した絶縁性のボルト１４ａを反対面にある絶縁性のナット１４ｂに螺着させて、高圧線３１の先端を孔１２ａとボルト１４ａの側面とで挟持する。このようにして、高圧線３１を第二プレート１２に連結する。なお、この接地板としての第二プレート１２は、光触媒を利用してコーティングされていてもよい。
【００２８】
さらに、これら第一プレート１１と第二プレート１２とは、それぞれ四隅に対応して穿設された孔１１ｃ，１２ｃに絶縁性のボルト１５ａが挿入され、反対面に設けた絶縁性のナット１５ｂに螺着することで、第一プレート１１と第二プレート１２とが連結される。なお、連結に際し、第一プレート１１と第二プレート１２とが、面接触しないように、絶縁材料によってリング状に形成されたスペーサ１６をプレート間に介在させる。なお、スペーサ１６は４隅に４つ設けられており、各スペーサ１６は上記ボルト１５ａを挿入することによってプレート間に挟持されている。ここで、第一プレート１１と第二プレート１２との間隔ｄとしては、例えば、１ｃｍ〜２ｃｍ程度が好ましい。
【００２９】
次に、電源部２０は、従来の電源部と異なり、一対の出力端子を備えて構成されており、一方の端子が高圧線３０を介して第一プレート１１と接続され、他方の端子が高圧線３１を介して第二プレート１２と接続されている。なお、１台の電源部２０に複数の電場発生部１０を連結可能にさせるには、各電場発生部１０との連結用に上記一対の端子を複数備えるように電源部２０を構成する。
【００３０】
ここで、電源部２０は、図４に示すように、出力電圧を設定する電圧設定部２１と、電圧設定部２１の設定に基づいて、交流電源からの電圧を上昇させて出力させる昇圧部２２とを、備えている。ここで、交流電源は、周波数が５０Ｈｚ〜６０Ｈｚの１００Ｖや２００Ｖの商用交流電源が使用できる。
【００３１】
ここで、昇圧部２２は、図５に示すように、電場発生部１０ごとに出力電圧を可変に操作できるように構成されている。具体的には、交流電源（１００Ｖ）を分岐し、そしてロータリースイッチ２０ａを介してトランス２０ｃに連結し、このトランス２０ｃの二次コイル２０ｃ_２ に端子２０ｆ，２０ｇを設けて、電場発生部１０への出力電圧としている。
【００３２】
なお、ロータリースイッチ２０ａは、作動軸を中心としてその周りを左右交互に一定の角度で回転させる切替操作によって、一次コイル２０ｃ_１ の所望の巻回数のタップａ，ｂ，ｃと接続された配線及びスイッチオフに切り替えられるようになっている。
【００３３】
そして、このように一次コイル２０ｃ_１ 側のコイルのタップを切り替えることによって、トランス２０ｃの一次コイル２０ｃ_１ と二次コイル２０ｃ_２ との巻線比に応じて、異なる高電圧が得られる。例えば、二次コイル２０ｃ_２ の出力電圧が１５００Ｖ、２０００Ｖ，３０００Ｖと昇圧される。なお、この出力電圧を選択するためのスイッチとしてのロータリスイッチ２０ａの代わりに、プランジャスイッチなどのプッシュスイッチを用いることもできる。また、一次コイル２０ｃ_１ に設けるタップは必要な出力電圧の可変数に合わせて複数設けてもよい。
【００３４】
上記図４に示す電源部２０の出力電圧の切替をトランス２０ｃの一次コイル２０ｃ_１ 側で操作するので、複数の電場発生部１０の印加電圧を個々に切り替える場合には、複数の電場発生部１０に対応した数のトランス２０ｃを備えなければならない。
ここで、装置規模の縮小化のためには、次の如く、電源部２０の内部回路を構成することもできる。
【００３５】
図６に示す電源部２０は、一つのトランス２０ｃを備え、その二次コイル２０ｃ_２ の所望の巻回数ごとにタップｄ，ｅ，ｆ，ｇを設け、そのタップに接続された配線を複数の電場発生部１０の数に応じて分岐させ、さらに出力電圧選択用の選択スイッチ（第二のスイッチ）２０ｄを電場発生部１０の数に応じて備えて、トランス２０ｃの出力側が構成される。
【００３６】
一方、トランス２０ｃの入力側には、トランス２０ｃへの電圧の印加を規制するスイッチ２０ｅ（第三のスイッチ）が備えられる。
このような構成においては、スイッチ２０ｅをオンにした状態で、選択スイッチ２０ｄをトランス２０ｃの所望のタップに接続させる。ここで、選択スイッチ２０ｄの一方の端子２０ｄ_１ がトランス２０ｃのタップｇに接続され、他端子２０ｄ_２ がトランス２０ｃのタップｆ，ｅ，ｄの何れかに接続されることで、０Ｖ、１５００Ｖ、２０００Ｖ，３０００Ｖの出力電圧を得ることができる。
【００３７】
ところで、図６に示すトランス２０ｃの一次コイル２０ｃ_１ 側のスイッチ２０ｅを選択スイッチ２０ｄよりも優先させて操作できるようにして、選択スイッチ２０ｄの接点のストレスを無くすことが望ましい。
【００３８】
このため、図７に示すように、電源部２０は、スイッチ２０ｅのスイッチング状態に応じて選択スイッチ２０ｄの操作を制御する優先順位判断部２０ｈを備えている。優先順位判断部２０ｈは、スイッチ２０ｅをオフ（一次電源開放）しないと選択スイッチ２０ｄが働かないようにする機構又は回路である。
【００３９】
機構としては、選択スイッチ２０ｄの操作を規制するように、選択スイッチ２０ｄを覆うカバー，蓋などの遮蔽物を回転可能に設け、常時、遮蔽物が選択スイッチ２０ｄを覆うようにゴム，バネなどの弾性体で付勢しつつ、閉じた状態を維持するようにロックし、スイッチ２０ｅのオフに伴ってそのロックを解除するように構成されているものを用いることができる。
【００４０】
また、図７に示すように、優先順位判断部２０ｈが、電気的に選択スイッチ２０ｄにロックをかけており、スイッチ２０ｅからのオフ信号を受信すると、ロックを開放するように構成しても良い。
なお、電源部２０は、図１に示すように、過大電流が装置に入るのを防ぐために地絡（アース）されている。
【００４１】
上述の如く構成された交流電場発生システム１の使用方法などについて説明する。
食品を揚げるためのフライヤーの油槽に電場発生部１０を沈下させ、電源部２０により電場発生部１０のプレート１１，１２に高電圧を印加する。すると、プレート１１，１２から交流電場が発生する。なお、電場発生部１０は油槽の底面に第二プレート１２が接するように使用するのが好ましい。なお、第一プレート１１に多数の孔１１ａが設けられているので、食用油は、その孔１１ａを出入り口として、第一プレート１１と第二プレート１２間の交流電場内に効率的に入り込むことができる。
【００４２】
また、電場発生部１０を油槽内に沈下させて使用している場合でフライを掴むための箸などを使用している際に、箸などが電場発生部１０のプレート１１に接触することがあるが、このプレート１１の表面全域が絶縁されているので、使用者が感電することはない。
【００４３】
このように、本発明の実施形態に係る交流電場発生システム１によれば、従来の装置に比べて、電場発生部１０に対して交流高電圧を印加し、第一プレート１１と第二プレート１２の間に交流電場を発生させることにより、十分に食品や食用油を還元するための陰電子を発生できる。そして、図８に示すように、従来の食用油を還元しない場合の使用期間（酸価値が３．５に至るに要する期間）が７日であったのに対して、本発明の交流電場発生システム１を使用したが場合は２０日間以上使用し続けることができる。このように、本システムは食用油の劣化を十分に抑制することができる。
【００４４】
上記説明では、プレート１１，１２が直方形状に形成される場合を例示したが、正方形，円形，三角形，その他任意の形状に形成されることができる。また、上記説明では、電場発生部２０をフライヤーの油槽に沈下させて使用する場合を例示したが、使用場所としては、その他、食品などを陳列するショーケースや冷蔵庫などにおいても同様に、使用することができる。
【００４５】
上記の交流電場発生システム１は、電場発生部１０が二枚のプレート１１，１２から構成されているので、各プレート１１，１２の連結などにネジやボルト等の部品を多数要することから、組み立て作業が煩雑になりかねない。
そこで、以下に、プレート間の連結構成を省略して、実質、構造を簡素にして、電場発生をする装置を上記フライヤーやショーケースなどに組み込んだシステムについて説明する。
【００４６】
図９は本発明の他の実施形態に係る交流電場発生システム２を示す図であり、この交流電場発生システム２は、電源部２０と、フライヤー４０と、分電盤５０とを備えている。
【００４７】
フライヤー４０は、油槽４１表面とフライヤー外表面とが電気的に接続しているように、装置全体がアルミニウム，ステンレス，銅，銅合金の導電材料により構成されており、さらにその油槽４１の底には第一プレート１１が取り出し可能に配設されている。
【００４８】
そして、上記フライヤー４０の油槽４１内に沈下されている第一プレート１１は高圧線３０を介して電源部２０に接続され、フライヤー４０の外壁４２は高圧線３１の先端が接続されて電源部２０に繋がっている。
さらに、フライヤー４０の外表面４２を接地するために分電盤５０の接地部とが接地線３２により接続されて接地３３されている。
【００４９】
また、フライヤー４０の電源部２０との接続としては、図１０に示すように、高圧線３１の先端をフライヤー４０（具体的には、フライヤー４０の構成部材である後述する網４５）に接続すると共に、油槽４１内に収容される導電材料に構成された調理籠４３を高圧線３１の途中と接続するようにしても良い。
【００５０】
なお、図１０に示すように、フライヤー４０の油槽４１内部には、３つの加熱帯４４が水平に並設され、さらにこれらの加熱帯４４の上に網４５が敷設されている。そして、この網４５の上に、第一プレート１１が載置されている。
【００５１】
このように構成された交流電場発生システム２によれば、前述の交流電場発生システム１の電場発生部１０をフライヤーの油槽に沈下させて使用したときと同様に、食品を還元するための陰電子を十分に発生することができる。
なお、この場合、陰電子を発生させる交流電場は、第一プレート１１とフライヤー４０とに印加された交流高電圧により発生する。
【００５２】
よって、本交流電場発生システム２によっても、選択的に高電圧を設定し、第一プレート１１及びフライヤー４０に印加することができる。
そして、本システム２においては、電場が発生する部材がフライヤー４０の油槽４１とこの油槽４１内に配設した第一プレート１１とにより構成され、フライヤー４０自体を電場発生に利用し、その電源部２０との接続も簡単（外壁４２に高圧線３１を接続されたフライヤー）なので、前述の電場発生部１０に比べて、電場発生部材の構成を簡素にすることができる。
【００５３】
このような交流電場発生システム２は、揚げ物を調理するフライヤー４０に組み込む他に、例えば、図１１に示すように、フライヤー４０の代わりに食品を陳列するショーケース４８内に設置してもよい。
【００５４】
この場合も、前述のフライヤー４０と同様に、ショーケース４８に高圧線３１を接続し、ショーケース４８内のテーブル４８ａに、高圧線３０を接続した第一プレート１１を載置する。また、このショーケース４８自体も、前述のフライヤー４５と同様に、装置全体がステンレス，銅，銅合金の導電材料により構成されている。
【００５５】
なお、図１１に示す例では、高圧線３８を介して連結された２台の第一プレート１１がテーブル４８ａ上に載置されているが、ショーケース４８内に配設される第一プレート１１の数はその数に限定されるものではなく、例えば、ショーケース４８の大きさに対応させて、３台以上配設してもよい。
【００５６】
このような、図１１に示す交流電場発生システム２においても、電源部２０から第一プレート１１及びショーケース４８に交流高電圧が印加されて、ショーケース４８内に陳列された食品に陰電子を十分に供給することができる。
【００５７】
また、図１２に示す自動フライヤー装置５に交流電場発生システム２を適用することもできる。
図１２に示す自動フライヤー装置５は、揚げ物を載せて自動的、かつ、連続的に運搬するコンベヤー装置６１を油層６０内に配設しており、さらに、このコンベヤー装置６１のステンレス製のベルト６２の移動に差し支えないように、油槽６０内に複数の第一プレート１１が配設されている。
【００５８】
具体的には、ベルト６２の移動方向に沿った油槽６０内の各側壁６０ａ，６０ｂに第一プレート１１が面接触するように取り付けられ、一方の側壁６０ａに取り付けられた第一プレート１１と他方の側壁６０ｂに取り付けられた第一プレート１１とが向かい合うように配設される。
【００５９】
なお、第一プレート１１の大きさは任意であり、例えば図１２に示すように、側壁６０ｂに取り付けられる二つの第一プレート１１の大きさは、側壁６０ａに取り付けられる第一プレート１１の半分程度に設計されている。また、図１３に示すように、ベルト６２の間にも第一プレート１１が水平に配設されている。
【００６０】
そして、各第一プレート１１は、それぞれ高圧線３０を介して電源部２０に接続され、さらにこれらの電源部２０は高圧線３１を介して導電性材料により全体構成された自動フライヤー装置５の側壁に接続されて接地３３されている。
【００６１】
このような、図１２に示す自動フライヤー装置５においても、電源部２０から第一プレート１１及びフライヤー側壁に交流高電圧が印加されて、ベルト６２によって搬送される揚げ物に陰電子を十分に供給することができる。
【００６２】
上記自動フライヤー装置５は、コンベアヤー装置６１が油槽６０内で揚げ物を搬送するため、装置取扱者などは、調理に際して菜箸などを油槽６０に入れないので、自動フライヤー装置５内に配設する第一プレート１１との接触による感電は発生するおそれがない。そのため、第一プレート１１を次のように構成してもよい。基本構造は、前述と同じ様に、アルミニウム，ステンレス，銅，銅合金などの導電性材料により略長方形状の平板を用い、さらに、複数の孔１１ａを有するが、このプレートは、表裏全体にセラミックスを焼き付けて付着させ、さらにその全体をテフロン（登録商標）などのフッ素樹脂で被覆されて、形成されるようになっている。このように、自動フライヤー装置５には、このような耐熱・耐衝撃処理が施されたプレート（以下、耐熱プレートと称す）を用いてもよい。なお、この耐熱プレートは、前述の交流電場発生システム１，２においても、第一プレート１１の代わりに用いることもできるが、図９，図１０，図１１のシステムに適用する場合には、フライヤー４０などと直に接触するのを防止するために、耐熱プレートとフライヤー４０の網４５などとの間に、絶縁材料を介在させるのがよい。
【００６３】
ところで、前述の図９〜図１３に示す交流電場発生システム２では、電場が発生するフライヤー４０，ショーケース４８等と電源部２０とが分離して設けられる場合を説明したが、電源部２０は、図１４に示すように、フライヤー４０やショーケース４８などにビルトイン（組み入れて）されていてもよい。電源部２０をフライヤー４０などに組み入れるための構成としては、例えば、フライヤー４０などの側壁に電源部２０を収容する凹部を画成し、この凹部に電源部２０を収容させることで、電源部２０をフライヤー４０などに組み込むことができる。
【００６４】
前述の第一プレート１１は、略長方形状の平板として形成される場合を例示したが、その形状としては平板に限らず、例えば、図１５（ａ）〜（ｄ）に示すように形成してもよい。
【００６５】
ここで、図１５（ａ）に示す第一プレート１１は、平らな平板をプレス加工などにより中間部位で屈曲させてＬ型に形成されており、図１５（ｂ）に示す第一プレート１１は、対向する側縁から側壁１１ｊを立設させ、さらにその先端に取付用のフランジ１１ｒを備えたＩ型に形成されており、図１５（ｃ）に示す第一プレート１１は、図１５（ｂ）に示す例の変形パターンであり、フランジ１１ｒを内側に折り返して、側面視、Ｃ型を呈するように形成さており、図１５（ｄ）に示す第一プレート１１は各側縁から側壁１１ｊを立設させて、側壁１１ｊの先端が連なってＯ形状を呈するように形成されている。
【００６６】
また、上記説明で、フライヤー４０に第一プレート１１がビルトインされている構成を例示したが、そのビルトインされているときのフライヤー４０やショーケース４８との連結構成は次のようにしてもよい。
図１７に示すように、フライヤー４０の油槽４１の側壁４１ａに凹部４０ａを凹設し、この凹部４０ａ内に高圧線３１に連結されているプレート電源体３１ａの基端部を入れ、さらに凹部４０ａ内をセラミック４０ｂで充填して、フライヤー４０にプレート電源体３１ａを固定する。このプレート電源体３１ａに面接触するように、第一プレート１１の側面には電源プラグ１１ｇが突設されている。さらに、油槽４１の側壁４１ａには、絶縁材料で作られたプレート載置台４０ｃが突設されており、さらにこの載置台４０ｃには表面をフッ素樹脂でコーティングされた押さえ４０ｆが載せられており、この押さえ４０ｆとプレート電源体３１ａとの間に電源プラグ１１ｇが嵌入されるようになっている。そして、プレート載置台４０ｃの上に載せられた第一プレート１１は、ボルト等の固定手段によって側壁４１ａに着脱可能に取り付けられるＬ字状の取付部材４０ｄによって押さえつけられて、油槽４１内に固定されるようになっている。なお、取付部材４０ｄの表面には、テフロン（登録商標）などのフッ素樹脂が塗布されている。
【００６７】
以上詳述したが、本発明は、発明の趣旨を逸脱しない範囲において様々な形態で実施できる。
上記説明では、フライヤー４０，ショーケース４８を例示してそれに用いられる食用油，食品に陰電子を供給して、還元作用により劣化を抑制するシステムを説明した。しかしながら、本発明の実施形態に係る交流電場発生システムは、食用油，食品の劣化を抑制するための利用に限らず、電場の効果を利用する他の用途にも適用できる。
【００６８】
電場の効果としては、その他の食品の鮮度保持技術としても利用可能であり、又水に対しては氷の成長や解凍についても認められている。従って、本発明の交流交流電場発生システムは、冷蔵庫や解凍庫等にも適用可能である。
【００６９】
【発明の効果】
本発明の交流電場発生システムによれば、電場発生部に交流高電圧を印加できて、食用油や食品を還元するための陰電子を十分に発生することができる。
【図面の簡単な説明】
【図１】本発明の実施形態に係る交流電場発生システムを示す図である。
【図２】本発明の実施形態に係る電場発生部の構成例を示す分解斜視図である。
【図３】本発明の実施形態に係る第一プレートと高圧線との連結構成を示す分解斜視図である。
【図４】本発明の実施形態に係る電源部の構成例を示すブロック図である。
【図５】本発明の実施形態に係る電源部の構成例を示す回路図である。
【図６】本発明の実施形態に係る電源部の構成例を示す回路図である。
【図７】本発明の実施形態に係る電源部の構成例を示す回路図である。
【図８】本発明の実施形態に係る交流電場発生システムを使用した場合の食用油の酸価値（遊離脂肪酸量；ａｃｉｄ ｖａｌｕｅ）の変化を示すグラフである。
【図９】本発明のさらに他の実施形態に係る交流電場発生システムを示す図である。
【図１０】本発明の他の実施形態に係る交流電場発生システムを示す図である。
【図１１】本発明のさらに他の実施形態に係る交流電場発生システムの応用例を示す図である。
【図１２】本発明の他の実施形態に係る交流電場発生システムを適用した自動フライヤーを示す概略斜視図である。
【図１３】図１２の自動フライヤー装置側面の概略端面図である。
【図１４】本発明の実施形態に係る電源部を装置内にビルトインしたフライヤー装置を示す正面図である。
【図１５】（ａ）〜（ｄ）は、それぞれ本発明の実施形態に係る第一プレートを示す斜視図である。
【図１６】本発明の実施形態に係る第一プレートに塗布される芳香族ポリイミドのワニスの物性を示す図である。
【図１７】本発明の実施形態に係るフライヤーと第一プレートとの他の連結構成例を示す断面図である。
【符号の説明】
１，２ 交流電場発生システム
５ 自動フライヤー装置
１０ 電場発生部
１１ 第一プレート
１１ａ，１１ｃ，１１ｅ，１２ａ，１２ｃ 孔
１１ｂ 切り欠き
１１ｄ 差し込み孔
１１ｊ 側壁
１１ｒ フランジ
１２ 第二プレート
１３ａ，１４ａ，１５ａ 絶縁性のボルト
１３ｂ，１４ｂ，１５ｂ 絶縁性のナット
１６ リング状のスペーサ
２０ 交流電源部
２０ａ ロータリースイッチ
２０ｃ トランス
２０ｃ_１ 一次コイル
２０ｃ_２ 二次コイル
２０ｄ 選択スイッチ
２０ｅ スイッチ
２０ｈ 優先順位判断部
２０ｆ，２０ｇ 端子
２１ 電圧設定部
２２ 昇圧部
３０，３１ 高圧線
３０ａ 電線針
３０ｂ 保護カバー
３０ｂ_１ 突片
３０ｂ_２ 挿通孔
３２ 接地線
３３ 接地
４０ フライヤー
４１ フライヤーの油槽
４２ フライヤー外壁
４３ 調理籠
４４ 加熱帯
４５ 網
４８ ショーケース
４８ａ ショーケース内のテーブル
５０ 分電盤
６０ 自動フライヤー装置の油槽
６０ａ，６０ｂ 側壁
６１ コンベヤー装置
６２ コンベヤー装置のベルト[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention, in cooking, for example, when frying fries such as fish and meat, sinking in the oil tank of a fryer that heats the cooking oil, or placed in a product case in which food products are displayed, by the reduction action The present invention relates to an AC electric field generation system that suppresses deterioration of oil and food.
[0002]
[Prior art]
It is known that edible oils used when frying fried foods at home or in restaurants and the like have an acid value (free fatty acid amount; acid value) that increases and deteriorates in proportion to the frequency of use. Since such deterioration of edible oil impairs the taste of food, used edible oil (degraded oil) is discarded in homes and restaurants when used to some extent instead of new oil.
[0003]
Such unnecessary discharge of edible oil to the sewer causes environmental pollution, and if the frequency of replacement of edible oil increases, the cost increases. In order to avoid such a problem, conventionally, various devices have been developed which enable long-term use of edible oil in order to reduce the amount of generation of degraded oil.
[0004]
Among them, there is known an electrostatic field generating device that utilizes an anion to supply edible oil to delay oxidation and deterioration, and is characterized by generating an electrostatic field in an oil tank of a fryer. (See Patent Document 1).
[0005]
[Patent Document 1]
JP-A-2002-209761
[0006]
A conventional electrostatic field generating device disclosed in Patent Document 1 and the like includes a porous plate and an insulating leg member that sandwiches opposing side ends of the plate to insulate the plate from the oil tank when the plate is submerged in the oil tank. And a power supply unit for charging the plate with static electricity, and one high-voltage line for electrically connecting the plate to the power supply unit.
[0007]
When such a device is used, for example, the plate is submerged in an oil tank of a fryer, and the plate is charged with static electricity by a power supply unit, and the static electricity forms an electrostatic field. By the negative electric field being supplied to the edible oil by this electrostatic field, deterioration of the edible oil was suppressed.
[0008]
[Problems to be solved by the invention]
However, in the conventional electrostatic field generator, only the plate is connected to the power supply unit by one high-voltage line, and the electric charge is accumulated only in the plate. The amount of negative electrons required for reduction was small. For this reason, the conventional electrostatic field generator cannot sufficiently prevent deterioration of edible oil and the like.
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide an AC electric field generation system that has a simple configuration and can efficiently prevent deterioration of edible oil and the like.
[0010]
[Means for Solving the Problems]
In order to achieve such an object, a first configuration of the present invention is an AC electric field generating system that generates an AC electric field by applying a voltage to a plate, and includes an AC power supply unit that outputs a high voltage; An electric field generator to which a high voltage is applied by an AC power supply unit, wherein the electric field generator is a perforated plate-shaped first plate formed of a conductive material, and a plate-shaped plate formed of a conductive material. A second plate, including an insulating spacer, wherein the first plate and the second plate are stacked with the insulating spacer interposed therebetween, the AC power supply unit includes at least a pair of terminals, Is connected to the first plate via a first high-voltage line, the other terminal is connected to the second plate via a second high-voltage line, and the first plate is an insulating film. Characterized by being coated It is.
[0011]
Further, according to the second configuration of the present invention, there is provided an AC electric field generating system for generating an AC electric field by applying a voltage to a plate, wherein the AC power supply section for outputting a high voltage, An electric field generation unit to which is applied, the electric field generation unit includes a perforated plate-shaped first plate formed of a conductive material, and a high voltage supply unit formed of a conductive material, The first plate is housed in a high-voltage supply unit, the AC power unit includes at least a pair of terminals, and the one terminal is connected to the first plate via a first high-voltage line, The other terminal is connected to the high voltage supply unit via a second high voltage line.
[0012]
When the high voltage supply unit is a fryer or an automatic fryer device, the first plate is disposed in an oil tank of the fryer or automatic fryer device, and the high voltage supply unit displays a food case. , The first plate is placed on a table in the showcase. Further, the first plate is preferably covered with an insulating film.
[0013]
The AC power supply is preferably built in the high voltage supply. For example, the AC power supply unit is housed in a recess formed on a side wall of the high voltage supply unit.
[0014]
It is preferable that an aromatic polyimide is applied as the insulating film.
[0015]
The AC power supply unit is preferably configured to be able to switch a voltage applied to the electric field generation unit. For example, the AC power supply unit includes at least one transformer and at least one first switch for selecting a plurality of taps provided on a primary coil of the transformer. Alternatively, the AC power supply unit includes one transformer and a second switch for selecting a plurality of taps provided on a secondary coil of the transformer.
[0016]
Further, in the present invention, preferably, the AC power supply unit further includes a third switch for restricting supply of current to the transformer on a primary coil side of the transformer, and a switching state of the third switch. And a priority determining unit that controls the operation of the second switch in accordance with the order.
[0017]
As described above, according to the present AC electric field generation system, a strong electric field is generated by applying a high voltage to the electric field generation unit by the AC power supply unit, so that many negative electrons can be generated.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an AC electric field generation system according to an embodiment of the present invention. As shown in FIG. 1, an AC electric field generation system 1 includes an electric field generation unit 10 where an electric field is generated, and an AC An AC power supply unit (hereinafter, referred to as a power supply unit) 20 for applying a high voltage, and two high-voltage lines 30 and 31 for connecting the electric field generator 10 to the power supply unit 20 are provided.
[0019]
Here, the AC electric field generating system 1 according to the present embodiment is different from the conventional electrostatic electric field generating device shown in Patent Document 1 or the like in that the electric field generating unit 10 is used instead of one plate, The difference is that the unit 10 and the power supply unit 20 are connected by two high-voltage lines 30 and 31.
[0020]
FIG. 2 is an exploded perspective view of the electric field generator 10 according to the embodiment of the present invention. The electric field generating unit 10 includes a first plate 11 as a non-grounding plate that does not contact the oil tank of the fryer, and a second plate 12 as a grounding plate that directly contacts the oil tank of the fryer.
[0021]
The first plate 11 is formed in a substantially rectangular flat plate from a conductive material such as aluminum, stainless steel, copper, or a copper alloy, and a plurality of holes 11a are formed substantially all over the flat plate. The size of the hole 11a for promoting convection of negative electrons, the atmosphere, cooking oil, and the like is set to about 20 mm to 30 mm, and the thickness of the first plate 11 is about 1 to 3 mm.
[0022]
Further, as shown in FIG. 3, a notch 11b is formed on one side edge of the first plate 11, and further a side surface 11b of the notch 11b is formed. ₁ , An insertion hole 11d for the high-voltage line 30 is formed horizontally with the plate surface. The insertion hole 11d is connected to a hole 11e formed perpendicularly to the surface of the first plate 11.
[0023]
The high-voltage wire 30 is attached to the side edge of the plate configured as described above. Specifically, the wire needle 30a attached to the tip of the high-voltage wire 30 is inserted into the insertion hole 11d until it reaches the hole 11e. Is screwed to the insulating nut 13b provided on the opposite surface, and the wire needle 30a is clamped between the hole 11e and the bolt 13a. Thus, the high voltage line 30 is connected to the first plate 11.
[0024]
In order to protect the end of the high-voltage line 30, the protection cover 30b is attached to the high-voltage line 30 so that the end of the high-voltage line 30 protrudes from the insulating protection cover 30b formed in a substantially U shape. I have. And each protruding piece 30b of the protective cover 30b ₁ The insertion hole 30b for inserting the bolt 13a is provided at the tip side of ₂ Is formed, and when the electric wire needle 30a is fixed to the first plate 11, the protective cover 30b is also fixed to the first plate 11 by the bolt 13a.
[0025]
Further, a varnish of aromatic polyimide is applied as an insulating film on the front and back surfaces of the first plate 11 to a thickness of, for example, 1 mm. In addition, as a coating method, hot press molding or sintering molding can be used.
The chemical formula of the aromatic polyimide is shown below.
Embedded image

The physical properties of the aromatic polyimide varnish are shown in FIG.
[0026]
On the other hand, the second plate 12 is also formed in a substantially rectangular flat plate from a conductive material such as aluminum, stainless steel, copper, and copper alloy, and its size and thickness are set to be substantially the same as the size of the first plate 11. Have been.
[0027]
The second plate 12 is provided with a hole 12a for attaching a high-voltage wire 31 in a direction perpendicular to the surface, and an insulating bolt 14a inserted into the hole 12a is provided with an insulating bolt 14a on the opposite surface. Screwed to the nut 14b, the tip of the high-voltage wire 31 is clamped between the hole 12a and the side surface of the bolt 14a. In this way, the high-voltage line 31 is connected to the second plate 12. The second plate 12 serving as the ground plate may be coated using a photocatalyst.
[0028]
Further, the first plate 11 and the second plate 12 are each provided with an insulating bolt 15a inserted into holes 11c, 12c formed at four corners, respectively, and an insulating nut 15b provided on the opposite surface. By screwing, the first plate 11 and the second plate 12 are connected. At the time of connection, a spacer 16 formed of an insulating material in a ring shape is interposed between the plates so that the first plate 11 and the second plate 12 do not come into surface contact. Incidentally, four spacers 16 are provided at four corners, and each spacer 16 is sandwiched between the plates by inserting the bolts 15a. Here, the distance d between the first plate 11 and the second plate 12 is preferably, for example, about 1 cm to 2 cm.
[0029]
Next, unlike the conventional power supply unit, the power supply unit 20 includes a pair of output terminals. One of the terminals is connected to the first plate 11 via the high-voltage line 30, and the other terminal is connected to the high-voltage terminal. It is connected to the second plate 12 via a wire 31. In order to connect a plurality of electric field generators 10 to one power supply unit 20, the power supply unit 20 is configured to include a plurality of the pair of terminals for connection with each electric field generator 10.
[0030]
Here, as shown in FIG. 4, the power supply unit 20 includes a voltage setting unit 21 that sets an output voltage, and a boosting unit 22 that raises and outputs a voltage from an AC power supply based on the setting of the voltage setting unit 21. And Here, as the AC power supply, a commercial AC power supply of 100 V or 200 V having a frequency of 50 Hz to 60 Hz can be used.
[0031]
Here, as shown in FIG. 5, the booster 22 is configured to variably operate the output voltage for each electric field generator 10. Specifically, an AC power supply (100 V) is branched and connected to a transformer 20c via a rotary switch 20a. ₂ Are provided with terminals 20f and 20g to output voltage to the electric field generator 10.
[0032]
In addition, the rotary switch 20a rotates the left and right sides around the operating axis alternately at a fixed angle, thereby switching the primary coil 20c. ₁ The wiring connected to the taps a, b, and c having the desired number of turns and the switch can be switched off.
[0033]
And, in this way, the primary coil 20c ₁ The primary coil 20c of the transformer 20c is switched by switching the tap of the coil on the side. ₁ And secondary coil 20c ₂ A different high voltage is obtained depending on the turn ratio. For example, the secondary coil 20c ₂ Are boosted to 1500V, 2000V and 3000V. It should be noted that a push switch such as a plunger switch can be used instead of the rotary switch 20a as a switch for selecting the output voltage. Also, the primary coil 20c ₁ May be provided in accordance with the required number of output voltages.
[0034]
The switching of the output voltage of the power supply unit 20 shown in FIG. ₁ Since the operation is performed on the side, when the applied voltages of the plurality of electric field generators 10 are individually switched, the number of transformers 20c corresponding to the plurality of electric field generators 10 must be provided.
Here, in order to reduce the size of the apparatus, an internal circuit of the power supply unit 20 can be configured as follows.
[0035]
The power supply unit 20 shown in FIG. 6 includes one transformer 20c and its secondary coil 20c. ₂ Taps d, e, f, and g are provided for each desired number of turns, and the wiring connected to the taps is branched according to the number of the plurality of electric field generators 10. The output side of the transformer 20c is provided with two (second switches) 20d corresponding to the number of the electric field generators 10.
[0036]
On the other hand, on the input side of the transformer 20c, a switch 20e (third switch) for regulating the application of voltage to the transformer 20c is provided.
In such a configuration, the selection switch 20d is connected to a desired tap of the transformer 20c with the switch 20e turned on. Here, one terminal 20d of the selection switch 20d ₁ Is connected to the tap g of the transformer 20c, and the other terminal 20d ₂ Is connected to any of the taps f, e, and d of the transformer 20c, so that output voltages of 0 V, 1500 V, 2000 V, and 3000 V can be obtained.
[0037]
Incidentally, the primary coil 20c of the transformer 20c shown in FIG. ₁ It is desirable that the switch 20e on the side be operated prior to the selection switch 20d so as to eliminate stress at the contact point of the selection switch 20d.
[0038]
For this reason, as shown in FIG. 7, the power supply unit 20 includes a priority determination unit 20h that controls the operation of the selection switch 20d according to the switching state of the switch 20e. The priority determination unit 20h is a mechanism or a circuit that prevents the selection switch 20d from operating unless the switch 20e is turned off (primary power supply is released).
[0039]
As the mechanism, a cover such as a cover and a cover for covering the selection switch 20d is rotatably provided so as to regulate the operation of the selection switch 20d, and a rubber, a spring or the like is provided so that the cover always covers the selection switch 20d. It is possible to use a structure that is locked so as to maintain the closed state while being urged by the elastic body, and is released when the switch 20e is turned off.
[0040]
Further, as shown in FIG. 7, the priority order determination unit 20h may electrically lock the selection switch 20d, and may release the lock when receiving an OFF signal from the switch 20e. .
As shown in FIG. 1, the power supply unit 20 is grounded (grounded) to prevent an excessive current from entering the device.
[0041]
A method of using the AC electric field generating system 1 configured as described above will be described.
The electric field generator 10 is settled in an oil tank of a fryer for frying food, and a high voltage is applied to the plates 11 and 12 of the electric field generator 10 by the power supply unit 20. Then, an AC electric field is generated from the plates 11 and 12. The electric field generator 10 is preferably used so that the second plate 12 contacts the bottom surface of the oil tank. In addition, since many holes 11a are provided in the first plate 11, the edible oil can efficiently enter the AC electric field between the first plate 11 and the second plate 12 using the holes 11a as entrances. .
[0042]
In addition, when the electric field generating unit 10 is used by sinking in the oil tank and using chopsticks or the like for grasping a fly, the chopsticks and the like may contact the plate 11 of the electric field generating unit 10. However, since the entire surface of the plate 11 is insulated, no electric shock is given to the user.
[0043]
As described above, according to the AC electric field generation system 1 according to the embodiment of the present invention, an AC high voltage is applied to the electric field generation unit 10 and the first plate 11 and the second plate 12 By generating an AC electric field during the period, negative electrons for sufficiently reducing food and edible oil can be generated. Then, as shown in FIG. 8, while the conventional use period (the period required for the acid value to reach 3.5) in the case where the edible oil is not reduced was 7 days, the AC electric field generation according to the present invention was performed. When the system 1 is used, it can be used for 20 days or more. Thus, the present system can sufficiently suppress the deterioration of the edible oil.
[0044]
In the above description, the case where the plates 11 and 12 are formed in a rectangular shape is illustrated, but they may be formed in a square, a circle, a triangle, or any other shape. In the above description, the case where the electric field generating unit 20 is used by sinking it in the oil tank of the fryer is exemplified. However, the place of use is similarly used in a showcase or a refrigerator for displaying foods and the like. be able to.
[0045]
The above-described AC electric field generating system 1 is assembled because the electric field generating unit 10 is composed of two plates 11 and 12, so that a large number of parts such as screws and bolts are required for connecting the plates 11 and 12 and the like. The work can be complicated.
Therefore, a system in which a device for generating an electric field is incorporated in a fryer, a showcase, or the like by substantially simplifying the structure by omitting a connection configuration between plates will be described below.
[0046]
FIG. 9 is a diagram illustrating an AC electric field generation system 2 according to another embodiment of the present invention. The AC electric field generation system 2 includes a power supply unit 20, a fryer 40, and a distribution board 50.
[0047]
The entire device of the fryer 40 is made of a conductive material such as aluminum, stainless steel, copper, or a copper alloy so that the surface of the oil tank 41 and the outer surface of the fryer are electrically connected. Is arranged so that the first plate 11 can be taken out.
[0048]
Then, the first plate 11 submerged in the oil tank 41 of the fryer 40 is connected to the power supply unit 20 via the high-voltage line 30, and the outer wall 42 of the fryer 40 is connected to the end of the high-voltage line 31 and the power supply unit 20. It is connected to.
Further, in order to ground the outer surface 42 of the fryer 40, the grounding portion of the distribution board 50 is connected to the grounding wire 32 and is grounded 33.
[0049]
As for the connection of the fryer 40 with the power supply unit 20, as shown in FIG. 10, the tip of the high-voltage line 31 is connected to the fryer 40 (specifically, a net 45 which will be described later, which is a component of the fryer 40). At the same time, a cooking basket 43 made of a conductive material contained in the oil tank 41 may be connected to the middle of the high-voltage line 31.
[0050]
As shown in FIG. 10, inside the oil tank 41 of the fryer 40, three heating zones 44 are horizontally arranged in parallel, and a net 45 is laid on these heating zones 44. The first plate 11 is placed on the net 45.
[0051]
According to the AC electric field generating system 2 configured as described above, similarly to the case where the electric field generating unit 10 of the above described AC electric field generating system 1 is used by sinking it in the oil tank of the fryer, the negative electron for reducing the food is used. Can be sufficiently generated.
In this case, an AC electric field for generating a negative electron is generated by an AC high voltage applied to the first plate 11 and the flyer 40.
[0052]
Therefore, even with the AC electric field generation system 2, a high voltage can be selectively set and applied to the first plate 11 and the fryer 40.
In the present system 2, the member generating the electric field is constituted by the oil tank 41 of the fryer 40 and the first plate 11 disposed in the oil tank 41, and the fryer 40 itself is used for generating the electric field, The connection with the electric field generating member 20 is also simple (a fryer in which the high voltage line 31 is connected to the outer wall 42), so that the configuration of the electric field generating member can be simplified as compared with the electric field generating section 10 described above.
[0053]
Such an AC electric field generating system 2 may be installed in a showcase 48 for displaying food instead of the fryer 40, as shown in FIG.
[0054]
Also in this case, similarly to the fryer 40 described above, the high-voltage line 31 is connected to the showcase 48, and the first plate 11 to which the high-voltage line 30 is connected is placed on the table 48a in the showcase 48. Further, the showcase 48 itself, like the fryer 45 described above, is entirely made of a conductive material such as stainless steel, copper, or a copper alloy.
[0055]
In the example shown in FIG. 11, two first plates 11 connected via a high-voltage line 38 are placed on the table 48a. The number is not limited to the number. For example, three or more may be arranged in accordance with the size of the showcase 48.
[0056]
In such an AC electric field generating system 2 shown in FIG. 11 as well, an AC high voltage is applied from the power supply unit 20 to the first plate 11 and the showcase 48, and a negative electron is applied to food displayed in the showcase 48. Can supply enough.
[0057]
Further, the AC electric field generating system 2 can be applied to the automatic fryer device 5 shown in FIG.
The automatic fryer device 5 shown in FIG. 12 has a conveyor device 61 for automatically and continuously carrying fried foods disposed in an oil layer 60. Further, a stainless steel belt 62 of the conveyor device 61 is provided. The plurality of first plates 11 are arranged in the oil tank 60 so as not to interfere with the movement of the first tank 11.
[0058]
Specifically, the first plate 11 is attached to each side wall 60a, 60b in the oil tank 60 along the moving direction of the belt 62 so as to make surface contact, and the first plate 11 attached to one side wall 60a and the other are attached to the other side wall 60a. Is disposed so as to face the first plate 11 attached to the side wall 60b.
[0059]
The size of the first plate 11 is arbitrary. For example, as shown in FIG. 12, the size of the two first plates 11 attached to the side wall 60b is about half the size of the first plate 11 attached to the side wall 60a. Designed to. As shown in FIG. 13, the first plate 11 is also horizontally disposed between the belts 62.
[0060]
Each of the first plates 11 is connected to a power supply unit 20 via a high-voltage line 30, and these power supply units 20 are connected via a high-voltage line 31 to a side wall of the automatic fryer device 5 entirely made of a conductive material. And is grounded 33.
[0061]
In the automatic fryer device 5 shown in FIG. 12 as well, an AC high voltage is applied from the power supply unit 20 to the first plate 11 and the side wall of the fryer to sufficiently supply negative electrons to the fried food conveyed by the belt 62. be able to.
[0062]
In the automatic fryer device 5, since the conveyor device 61 conveys the fried food in the oil tank 60, the operator of the device does not put chopsticks or the like into the oil tank 60 during cooking. Electric shock due to contact with the plate 11 does not occur. Therefore, the first plate 11 may be configured as follows. As described above, the basic structure uses a substantially rectangular flat plate made of a conductive material such as aluminum, stainless steel, copper, or copper alloy, and has a plurality of holes 11a. Is baked and adhered, and the whole is covered with a fluororesin such as Teflon (registered trademark) to be formed. As described above, a plate (hereinafter, referred to as a heat-resistant plate) that has been subjected to such heat and impact resistance treatment may be used for the automatic fryer device 5. This heat-resistant plate can be used in place of the first plate 11 in the AC electric field generation systems 1 and 2 described above. However, when the heat-resistant plate is applied to the systems shown in FIGS. An insulating material is preferably interposed between the heat-resistant plate and the net 45 of the fryer 40 in order to prevent direct contact with the frit 40.
[0063]
By the way, in the AC electric field generating system 2 shown in FIGS. 9 to 13 described above, the case where the power supply unit 20 is provided separately from the fryer 40, the showcase 48, and the like in which the electric field is generated has been described. As shown in FIG. 14, it may be built in (incorporated into) the flyer 40, the showcase 48, or the like. As a configuration for incorporating the power supply unit 20 into the fryer 40 or the like, for example, a recess for accommodating the power supply unit 20 is defined on a side wall of the fryer 40 or the like, and the power supply unit 20 is accommodated in the recess. Can be incorporated into the fryer 40 or the like.
[0064]
Although the above-described first plate 11 has been exemplified as being formed as a substantially rectangular flat plate, the shape is not limited to the flat plate, and may be formed as shown in FIGS. 15 (a) to (d), for example. Is also good.
[0065]
Here, the first plate 11 shown in FIG. 15A is formed into an L-shape by bending a flat plate at an intermediate portion by press working or the like, and the first plate 11 shown in FIG. The first plate 11 shown in FIG. 15 (c) is formed in an I-shape with a side wall 11j erected from the opposite side edge and further provided with a mounting flange 11r at its tip. FIG. 15D shows an example of a deformation pattern in which the flange 11r is folded inward to form a C-shape when viewed from the side, and the first plate 11 shown in FIG. The side wall 11j is formed so as to be erected, and the tip of the side wall 11j is continuously formed to have an O shape.
[0066]
Further, in the above description, the configuration in which the first plate 11 is built in the fryer 40 is illustrated. However, the connection configuration of the fryer 40 and the showcase 48 when the first plate 11 is built in may be as follows.
As shown in FIG. 17, a concave portion 40a is formed in the side wall 41a of the oil tank 41 of the fryer 40, and the base end of the plate power supply body 31a connected to the high-voltage line 31 is inserted into the concave portion 40a. The inside is filled with ceramic 40b, and the plate power source 31a is fixed to the fryer 40. A power plug 11g is provided on the side surface of the first plate 11 so as to be in surface contact with the plate power supply body 31a. Further, a plate mounting table 40c made of an insulating material is protruded from a side wall 41a of the oil tank 41, and a presser 40f whose surface is coated with a fluororesin is mounted on the mounting table 40c. A power plug 11g is inserted between the presser 40f and the plate power supply 31a. The first plate 11 placed on the plate mounting table 40c is pressed down by an L-shaped attachment member 40d detachably attached to the side wall 41a by fixing means such as bolts, and is fixed in the oil tank 41. It has become so. The surface of the mounting member 40d is coated with a fluororesin such as Teflon (registered trademark).
[0067]
As described in detail above, the present invention can be implemented in various forms without departing from the spirit of the invention.
In the above description, the system in which the fryer 40 and the showcase 48 are exemplified to supply the edible oil and the food with the negative electrons to suppress the deterioration by the reducing action has been described. However, the AC electric field generation system according to the embodiment of the present invention is not limited to use for suppressing deterioration of edible oils and foods, but can be applied to other uses utilizing the effect of an electric field.
[0068]
As the effect of the electric field, it can be used as a technique for maintaining the freshness of other foods, and the growth and thawing of ice with respect to water are also recognized. Therefore, the AC / AC electric field generating system of the present invention can be applied to a refrigerator, a thawing cabinet, and the like.
[0069]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the AC electric field generation system of this invention, an AC high voltage can be applied to an electric field generation part, and a negative electron for reducing edible oil and food can be sufficiently generated.
[Brief description of the drawings]
FIG. 1 is a diagram showing an AC electric field generation system according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a configuration example of an electric field generator according to the embodiment of the present invention.
FIG. 3 is an exploded perspective view showing a connection configuration between a first plate and a high-voltage line according to the embodiment of the present invention.
FIG. 4 is a block diagram illustrating a configuration example of a power supply unit according to the embodiment of the present invention.
FIG. 5 is a circuit diagram illustrating a configuration example of a power supply unit according to the embodiment of the present invention.
FIG. 6 is a circuit diagram illustrating a configuration example of a power supply unit according to the embodiment of the present invention.
FIG. 7 is a circuit diagram illustrating a configuration example of a power supply unit according to the embodiment of the present invention.
FIG. 8 is a graph showing a change in an acid value (free fatty acid amount; acid value) of an edible oil when the AC electric field generating system according to the embodiment of the present invention is used.
FIG. 9 is a diagram showing an AC electric field generation system according to still another embodiment of the present invention.
FIG. 10 is a diagram showing an AC electric field generation system according to another embodiment of the present invention.
FIG. 11 is a diagram showing an application example of an AC electric field generation system according to still another embodiment of the present invention.
FIG. 12 is a schematic perspective view showing an automatic fryer to which an AC electric field generating system according to another embodiment of the present invention is applied.
FIG. 13 is a schematic end view of a side surface of the automatic fryer device of FIG.
FIG. 14 is a front view showing a fryer device in which a power supply unit according to the embodiment of the present invention is built in the device.
FIGS. 15A to 15D are perspective views each showing a first plate according to the embodiment of the present invention.
FIG. 16 is a view showing physical properties of a varnish of an aromatic polyimide applied to a first plate according to an embodiment of the present invention.
FIG. 17 is a cross-sectional view showing another example of the connection configuration between the fryer and the first plate according to the embodiment of the present invention.
[Explanation of symbols]
1, 2 AC electric field generation system
5 Automatic fryer device
10 Electric field generator
11 First plate
11a, 11c, 11e, 12a, 12c holes
11b Notch
11d insertion hole
11j Side wall
11r flange
12 Second plate
13a, 14a, 15a Insulating bolt
13b, 14b, 15b Insulating nut
16 Ring-shaped spacer
20 AC power supply
20a Rotary switch
20c transformer
20c ₁ Primary coil
20c ₂ Secondary coil
20d selection switch
20e switch
20h Priority judgment unit
20f, 20g terminal
21 Voltage setting section
22 booster
30, 31 High-voltage line
30a Electric wire needle
30b Protective cover
30b ₁ Projection
30b ₂ Insertion hole
32 ground wire
33 ground
40 Flyer
41 Flyer Oil Tank
42 Flyer outer wall
43 Cooking basket
44 heating zone
45 net
48 showcase
48a table in showcase
50 distribution board
60 Oil tank of automatic fryer device
60a, 60b sidewall
61 Conveyor device
62 Conveyor belts

Claims (13)

An AC electric field generating system that generates an AC electric field by applying a voltage to a plate,
An AC power supply that outputs high voltage,
An electric field generator to which a high voltage is applied by the AC power supply,
The electric field generator includes a perforated plate-shaped first plate formed of a conductive material, a plate-shaped second plate formed of a conductive material, and an insulating spacer,
The first plate and the second plate are stacked with the insulating spacer interposed therebetween,
The AC power supply unit includes at least a pair of terminals,
The one terminal is connected to the first plate via a first high-voltage line, and the other terminal is connected to the second plate via a second high-voltage line,
Furthermore, the AC electric field generation system, wherein the first plate is covered with an insulating film. An AC electric field generating system that generates an AC electric field by applying a voltage to a plate,
An AC power supply that outputs high voltage,
An electric field generator to which a high voltage is applied by the AC power supply,
The electric field generating unit includes a perforated plate-shaped first plate formed of a conductive material, and a high voltage supply unit formed of a conductive material,
The first plate is housed in the high voltage supply unit,
The AC power supply unit includes at least a pair of terminals,
The one terminal is connected to the first plate via a first high voltage line, and the other terminal is connected to the high voltage supply unit via a second high voltage line. , AC electric field generation system. The AC electric field generation system according to claim 2, wherein the high voltage supply unit is a fryer, and the first plate is disposed in an oil tank of the fryer. The AC electric field generating system according to claim 2, wherein the high voltage supply unit is a showcase for displaying food, and the first plate is placed on a table in the showcase. . The AC electric field generation system according to claim 2, wherein the high voltage supply unit is an automatic fryer device, and the first plate is disposed in an oil tank of the automatic fryer device. The AC electric field generation system according to any one of claims 2 to 4, wherein the first plate is covered with an insulating film. 7. The AC electric field generation system according to claim 1, wherein the AC power supply unit is built in the high voltage supply unit. The AC electric field generating system according to claim 7, wherein the AC power supply unit is housed in a concave portion formed on a side wall of the high voltage supply unit. 9. The AC electric field generation system according to claim 1, wherein the insulating film is an aromatic polyimide. The AC electric field generation system according to any one of claims 1 to 9, wherein the AC power supply unit is configured to be capable of switching a voltage applied to the electric field generation unit. The said AC power supply part is provided with at least one transformer and at least one 1st switch which selects the several tap provided in the primary coil of this transformer, The said switch is characterized by the above-mentioned. AC electric field generation system. The AC electric field according to claim 10, wherein the AC power supply unit includes one transformer and a second switch for selecting a plurality of taps provided on a secondary coil of the transformer. Generating system. A third switch that regulates the supply of current to the transformer is provided on the primary coil side of the transformer, and a priority switch that controls operation of the second switch according to a switching state of the third switch is provided. The AC electric field generating system according to claim 12, further comprising a rank determining unit.

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