JPH10112381A - Heating device - Google Patents

Heating device

Info

Publication number
JPH10112381A
JPH10112381A JP26809896A JP26809896A JPH10112381A JP H10112381 A JPH10112381 A JP H10112381A JP 26809896 A JP26809896 A JP 26809896A JP 26809896 A JP26809896 A JP 26809896A JP H10112381 A JPH10112381 A JP H10112381A
Authority
JP
Japan
Prior art keywords
heating
door
magnet
key
electromagnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP26809896A
Other languages
Japanese (ja)
Other versions
JP3708250B2 (en
Inventor
Haruo Matsushima
治男 松島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP26809896A priority Critical patent/JP3708250B2/en
Publication of JPH10112381A publication Critical patent/JPH10112381A/en
Application granted granted Critical
Publication of JP3708250B2 publication Critical patent/JP3708250B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of High-Frequency Heating Circuits (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)

Abstract

PROBLEM TO BE SOLVED: To simplify operation in order to utilize a general purpose microwave heating unit with small size, high performance to the mass cooking of food. SOLUTION: A locking key is arranged in a commercial heating unit as a heating pattern specifying means, a plurality of numeral keys corresponding to the specified heating patterns are pushed back and forth to specify the heating pattern, magnets 24, 25 fixed to a door approach Hall elements 26, 27 connected to a controller, the controller starts operation in the specified heating pattern, after heating is finished, the controller passes current in the direction repelling magnets 28, 29 to an electromagnet 30, and the door 1 is opened. Mass heating of food by microwave, with high quality and an optional capacity is made possible.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は冷凍食品の解凍等、
マイクロ波を用いた食品大量加熱装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the thawing of frozen foods and the like.
The present invention relates to a large-scale food heating apparatus using microwaves.

【0002】[0002]

【従来の技術】マイクロ波を用いた食品加熱は効率の高
さおよび出来上がり品質の高さから、従来の一般家庭用
電子レンジだけでなく産業用も開発されている。そして
産業用に使用される場合には、一般家庭で問題にならな
かった簡単な操作が問題となり、加熱モード設定および
スタートキーを押す僅か2〜3秒の時間や、扉を開ける
僅かの時間の削減も重要となる。前者の最も簡便な例と
しては機械式タイマーを用い、スタート釦を省略した安
価な単機能商品がある。これはタイマーを回す操作のみ
で動作開始し、予めタイマーを回しておけば扉を閉じる
と同時に動作を開始する。しかし動作中にタイマーは0
に戻るので続けて2度3度と動作させるにはその都度タ
イマーを回す必要があった。高価で複雑な機能を有する
機器の例では加熱パターンまたは加熱モードを選択する
キーがスタート釦を兼用し、選択キーを押すと同時に機
器が動作開始するものが市場に出ているが、これとても
動作の都度選択キーは押さなければならない。
2. Description of the Related Art Food heating using microwaves has been developed not only for conventional household microwave ovens but also for industrial applications due to its high efficiency and high quality. In the case of industrial use, simple operation that was not a problem in ordinary households became a problem, and it took only a few seconds to set the heating mode and press the start key, and a short time to open the door. Reduction is also important. The simplest example of the former is an inexpensive single-function product using a mechanical timer and omitting the start button. The operation is started only by the operation of turning the timer, and if the timer is turned in advance, the operation is started simultaneously with closing the door. But the timer is 0 during operation
Therefore, it was necessary to turn the timer each time to operate continuously twice and three times. In the case of equipment with expensive and complicated functions, the key for selecting the heating pattern or heating mode also functions as the start button, and the equipment that starts operating as soon as the selection key is pressed is on the market. The selection key must be pressed each time.

【0003】後者の解決策としての自動的に扉が開く電
子レンジは古くから提案されており、また最近では自動
販売機に組み込まれた例も出現し始めているが、何れに
しろ複雑な構成となり信頼性および価格の点から改善が
望まれていた。
A microwave oven that automatically opens the door as a solution to the latter has been proposed for a long time, and recently an example in which the microwave oven is incorporated in a vending machine has begun to appear. Improvements have been desired in terms of reliability and price.

【0004】[0004]

【発明が解決しようとする課題】電子レンジが複雑にな
る最大の理由は電子レンジに必要な二重の発振停止装置
にある。扉が開かれた時にはマイクロ波の発振が停止す
る二重の構成であり、その一つが機能停止した場合には
それをモニターし、回復するまでは動作せず、しかも扉
を開けた状態で外部から操作出来ない構造が要求されて
いる。一般にはマイクロスイッチを用いた機械的構成が
採用され、扉の開閉に2〜5kg程度の力を要し、自動
的に開閉するにはこれ以上の力が必要となる為に大形
化、複雑化するのである。5kg程度以上の力で扉が開
けられればその力は各部に加わるから、業務用電子レン
ジに義務付けられた20万回の扉開閉試験を行うと摩滅
の為に隙間が生じ、電波漏洩増大につながるので設計上
最も苦労する部分の一つである。これを自動的、機械的
に行うにはその装置も5kg以上20万回以上に耐え得
る機構が要求される。従って弱い力で開閉できる発振停
止装置の開発が自動扉の簡素化には必須の要件となる。
The biggest reason for the complexity of the microwave oven is the double oscillation stop device required for the microwave oven. When the door is opened, it is a double configuration in which the oscillation of the microwave stops.If one of them stops functioning, it monitors it and does not operate until it recovers. A structure that cannot be operated from is required. In general, a mechanical configuration using a microswitch is adopted, which requires about 2 to 5 kg of force to open and close the door, and more power is required to open and close automatically. It becomes. If the door is opened with a force of about 5 kg or more, the force will be applied to each part, so if the door opening and closing test required for a commercial microwave oven is performed 200,000 times, gaps will occur due to wear, leading to increased radio wave leakage This is one of the most difficult parts of the design. In order to perform this automatically and mechanically, a mechanism capable of withstanding 5 kg or more and 200,000 times or more is required. Therefore, development of an oscillation stop device that can be opened and closed with a weak force is an essential requirement for simplifying an automatic door.

【0005】前者には二つの要素が含まれている。一つ
は安全の為の最終意思確認である。つまり操作者の意思
に反して機器が動作を開始すると負荷が無い場合には空
焼きとなり機器を傷める可能性があり、逆に加熱室に可
燃食品が入った状態で長時間動作すると引火する危険が
ある。動作開始に際しては操作する人間がこれらの危険
性を排除または認識した上でスタートさせるものであ
る。
[0005] The former includes two elements. One is to confirm the final intention for safety. In other words, if the device starts to operate against the operator's will, if there is no load, the device may be burned in the absence of a load and the device may be damaged. There is. At the start of the operation, the operating person starts after recognizing or recognizing these dangers.

【0006】二つ目は加熱モードの選択である。冷凍食
品の解凍にはその食品の形状、重量、冷凍温度等の関数
としての最適加熱パターンで加熱しなければならないか
ら最適モード選択が必須である。単機能電子レンジに於
いても加熱時間の長さを設定せずに動作させれば負荷の
引火等の危険も招来しかねないし、最適加熱は及びもつ
かない。前述した如くこれら二つの機能を一つに集約し
た例はあるが省略した例は見あたらない。危険を回避し
つつ操作を簡略化する事が求められているのである。
The second is selection of a heating mode. The thawing of frozen food requires heating in an optimum heating pattern as a function of the shape, weight, freezing temperature, etc. of the food, so that an optimal mode selection is essential. If a single-function microwave oven is operated without setting the length of heating time, danger such as ignition of a load may be caused, and the optimum heating cannot be achieved. As described above, there is an example in which these two functions are integrated into one, but no omitted example is found. There is a need to simplify the operation while avoiding danger.

【0007】本発明はこれら二つの課題、すなわち僅か
な力で開閉する発振停止装置の実現と、特定の加熱モー
ド選択および動作開始操作の簡略化を同時にあるいは各
々単独に解決し、高品質高効率のマイクロ波加熱を食品
工業へ導入しようとするものである。
The present invention solves these two problems, that is, the realization of an oscillation stop device that opens and closes with a small force and the simplification of a specific heating mode selection and operation start operation simultaneously or individually, thereby achieving high quality and high efficiency. To introduce microwave heating into the food industry.

【0008】[0008]

【課題を解決するための手段】上記課題を解決するた
め、本発明は次の手段を取るものである。
To solve the above problems, the present invention takes the following means.

【0009】加熱室と、回動自在に設けられた扉と、マ
グネトロン等の高周波源と、これを制御する制御器と、
扉に設けられた複数の磁石と、これら複数の磁石と対向
する位置の加熱室側に設けられた磁気検出手段および電
磁石とを有し、制御器は加熱終了時に対向する磁石に反
発する方向の磁界を生じる電流を電磁石に流す構成とし
たものである。
A heating chamber, a rotatably provided door, a high-frequency source such as a magnetron, and a controller for controlling the high-frequency source;
It has a plurality of magnets provided on the door, a magnetism detecting means and an electromagnet provided on the heating chamber side at a position facing the plurality of magnets, and the controller has a direction in which the magnets repel the facing magnets at the end of heating. In this configuration, a current for generating a magnetic field is caused to flow through the electromagnet.

【0010】また、加熱室と、回動自在に設けられた扉
と、マグネトロン等の高周波源と、これを制御する制御
器と、扉に設けられた複数の磁石と、前記複数の磁石と
対向する位置の加熱室側に設けられた磁気検出手段およ
び電磁石と、加熱パターン特定手段と特定解除手段とを
有し、制御器は特有の加熱パターンに特定されている
間、磁気検出手段が磁気を検出開始後に前記パターンで
高周波源を動作させ、電磁石には加熱終了時に対向する
磁石に反発する方向の磁界を生じる電流を流す構成とし
たものである。
Also, a heating chamber, a rotatably provided door, a high frequency source such as a magnetron, a controller for controlling the same, a plurality of magnets provided on the door, A magnetism detecting means and an electromagnet provided on the side of the heating chamber at a position to be heated, a heating pattern specifying means and a specification canceling means, and the controller detects magnetism while the specific heating pattern is specified. After the start of the detection, the high-frequency source is operated in the above-mentioned pattern, and a current is applied to the electromagnet to generate a magnetic field in a direction repelling the opposing magnet at the end of heating.

【0011】[0011]

【発明の実施の形態】本発明の実施形態は、加熱室と、
回動自在に設けられた扉と、マグネトロン等の高周波源
と、前記高周波源の動作を制御する制御器と、扉に設け
られた複数の磁石と、前記複数の磁石と対向する位置の
加熱室側に設けられた磁気検出手段および電磁石と、加
熱パターン特定手段と特定解除手段とを有し、制御器は
特有の加熱パターンに特定されている間、磁気検出手段
が磁気を検出開始後に前記加熱パターンで高周波源を動
作させ、電磁石には加熱終了時に対向する磁石に反発す
る方向の磁界を生じる電流を流す為に、扉は言わゆる横
開き式を採用し、複数の磁石として扉の回動先端付近の
上下に、半分をN−S、残り半分をS−Nと、互いに相
反する極性に着磁された小さなフェライト磁石を固定
し、対向する位置の磁気検出素子として一対のホール素
子をN極を検出する方向およびS極を検出する方向とに
互いに相反する方向に向け、固定し、扉の回動先端付近
中央には大きめの同様なフェライト磁石を固定し、U字
型をした電磁石の先端は各々SおよびN極と対向させ、
これらホール素子や電磁石をマイクロプロセッサーで構
成された制御器に接続することにより実現できるもので
ある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention comprises a heating chamber,
A rotatably provided door, a high-frequency source such as a magnetron, a controller for controlling the operation of the high-frequency source, a plurality of magnets provided on the door, and a heating chamber at a position facing the plurality of magnets A magnetism detecting means and an electromagnet provided on the side, a heating pattern specifying means and a specification canceling means, while the controller detects the magnetism while the magnetic detecting means starts detecting the magnetism while the specific heating pattern is specified. The door adopts a so-called side-opening type, so that the door turns as a plurality of magnets in order to operate a high-frequency source in a pattern and apply a current to the electromagnet that generates a magnetic field that repels the opposing magnet at the end of heating. A small ferrite magnet magnetized to opposite polarities is fixed above and below the tip near the tip, with the other half being NS and the other half being SN, and a pair of Hall elements are used as magnetic detection elements at opposing positions. Detect the pole Direction, and the direction in which the S-pole is detected, are fixed in a direction opposite to each other, and a similar ferrite magnet is fixed in the center near the turning end of the door, and the ends of the U-shaped electromagnets are S-shaped. And the north pole,
This can be realized by connecting these Hall elements and electromagnets to a controller constituted by a microprocessor.

【0012】(実施例)以下本発明の一実施例を図面に
基づいて説明する。
An embodiment of the present invention will be described below with reference to the drawings.

【0013】図1は本発明の加熱装置の正面図である。
正面中央に扉1が設けられ、左側をヒンジ(図示せず)
で回動自在に本体に取付け、右側に固定された把手2を
持って手前に引けば扉1が開く構造である。扉の下側に
は吸気用フィルター3が設けられ、扉の上側には操作部
4が設けられる。操作部4は左端に蛍光表示管で構成さ
れた表示部5があり、加熱パターン特定状態を示す小さ
な丸に続いてICカードの番地が表示されている。本実
施例では153番地に特定された例を描いた。その右に
はメモリーキー6、取消キー7、出力切換キー8、LO
CKキー9、数字の1キー10、2キー11、3キー1
2、4キー13、5キー14、6キー15、7キー1
6、8キー17、9キー18、0キー19およびスター
トキー20が右端となる。LOCKキー9と小丸に続く
153以外は従来市販されているマイクロ波解凍器と外
観は全く同一であり、機能も全て搭載されているものと
する。
FIG. 1 is a front view of a heating device according to the present invention.
A door 1 is provided at the center of the front, and a hinge is provided on the left side (not shown).
The door 1 opens when the user grips the handle 2 fixed to the right side and pulls the handle 2 toward the user. An intake filter 3 is provided below the door, and an operation unit 4 is provided above the door. The operation unit 4 has a display unit 5 formed of a fluorescent display tube at the left end, and displays an address of an IC card following a small circle indicating a heating pattern specific state. In the present embodiment, an example specified at address 153 is described. To the right are the memory key 6, cancel key 7, output switch key 8, LO
CK key 9, 1 number key 10, 2 key 11, 3 key 1
2, 4 key 13, 5 key 14, 6 key 15, 7 key 1
The 6, 8 key 17, 9 key 18, 0 key 19 and start key 20 are at the right end. Except for the LOCK key 9 and the 153 following the small circle, the appearance is exactly the same as that of the microwave decompressor conventionally marketed, and it is assumed that all the functions are mounted.

【0014】図2の(a)は右側面図であり、扉1が若
干開かれた状態を示し、内部構造部品の一部を説明の都
合上破線で描いたものである。金属製の外箱21の上部
にICカード出し入れ用の蓋22および固定用ネジ22
aが設けられる。略直方体の加熱室23も破線で示し
た。扉1には上下二つの二極着磁フェライト磁石24、
25が固定され、ポリプロピレン等の樹脂で被われるが
詳細は略す。二極着磁フェライト磁石24、25は図2
の(b)にその斜視図を示した如くほぼ直方体であり、
正確には極性を間違って取り付けられないよう一つの角
が切りとられ薄い五角柱の形状を持つ。その厚み方向に
上半分はS−N方向、下半分はN−S方向に着磁され
る。
FIG. 2A is a right side view showing a state in which the door 1 is slightly opened, in which some of the internal structural parts are drawn by broken lines for convenience of explanation. A lid 22 for taking in and out an IC card and a fixing screw 22 are provided on a metal outer box 21.
a is provided. A substantially rectangular parallelepiped heating chamber 23 is also shown by a broken line. The door 1 has two upper and lower two-pole magnetized ferrite magnets 24,
25 is fixed and covered with a resin such as polypropylene, but details are omitted. The two-pole magnetized ferrite magnets 24 and 25 are shown in FIG.
(B) is a substantially rectangular parallelepiped as shown in the perspective view,
Precisely, it has a thin pentagonal shape with one corner cut off to prevent incorrect polarity. In the thickness direction, the upper half is magnetized in the SN direction and the lower half is magnetized in the NS direction.

【0015】加熱室23側は磁石に吸引されない材質の
金属、例えばステンレス鋼SUS304の薄板で構成さ
れ、その下に一対のホール素子26、27を臨ませる。
磁石のS極に対向するホール素子はS極に反応する向き
に、N極に対向するホール素子はN極に反応する向きに
固定する事は当然である。図2の(b)はこの関係を表
す斜視図を示す。
The heating chamber 23 side is made of a thin plate of metal, for example, stainless steel SUS304, which is not attracted by the magnet, and a pair of Hall elements 26 and 27 are exposed below the thin plate.
Naturally, the Hall element facing the S pole of the magnet is fixed in a direction responding to the S pole, and the Hall element facing the N pole is fixed in a direction reacting to the N pole. FIG. 2B is a perspective view showing this relationship.

【0016】扉の中央部には少し大きめのフェライト磁
石28、29を固定し、28はS極を、29はN極を外
に向ける。両者に対向する位置にU字型の先端を向けた
電磁石30を前記ホール素子26、27と同一面に固定
する。
At the center of the door, slightly larger ferrite magnets 28 and 29 are fixed. 28 points the S pole and 29 points the N pole to the outside. An electromagnet 30 having a U-shaped tip directed to a position facing the both is fixed on the same surface as the Hall elements 26 and 27.

【0017】図3は本加熱装置の電気回路図である。左
端の電源に最も近い部分にコイル31とコンデンサー3
2とから成るノイズフィルターがあり、次いでフューズ
33を介してまずマグネトロン用ヒータートランス34
およびそのリレー35の接点、次にAC100V用ファ
ンモーター36二つとそのリレー37の接点、オーブン
(加熱室)ランプ38とそのリレー39の接点が並列に
接続され、これら3つの制御用リレー40の接点が直列
に接続される。次にAC200Vの両端各々にリレー4
1、42および43、44の接点が接続される。リレー
41の後ろにはAC100V用スタラーモーター45二
つが前記リレー40の接点との間に接続される。また2
00Vを短絡する位置に短絡リレー46、47の接点を
設ける。なお全てのリレーのコイルは後述する制御器に
接続されているものとする。
FIG. 3 is an electric circuit diagram of the heating apparatus. The coil 31 and the capacitor 3 are located at the part closest to the left power supply.
2 and then via a fuse 33 first a magnetron heater transformer 34
And the contacts of its relay 35, then the contacts of two AC 100V fan motors 36 and its relay 37, the contacts of the oven (heating chamber) lamp 38 and its relay 39 are connected in parallel, and the contacts of these three control relays 40 Are connected in series. Next, relay 4 at both ends of AC200V
1, 42 and 43, 44 contacts are connected. Behind the relay 41, two AC100V stirrer motors 45 are connected between the relay 40 and the contacts of the relay 40. Also 2
Contact points of short-circuit relays 46 and 47 are provided at positions where 00V is short-circuited. It is assumed that the coils of all relays are connected to a controller described later.

【0018】次に高圧トランス48、49に接続され、
その二次側は進相コンデンサー50、51、ダイオード
52、53を介しマグネトロン54、55に接続され
る。本実施例ではこの二つのマグネトロンを加熱室の上
面および底面に配置し、食品の上下から高周波照射する
方式を採用している。
Next, they are connected to high voltage transformers 48 and 49,
The secondary side is connected to magnetrons 54 and 55 via phase-advancing capacitors 50 and 51 and diodes 52 and 53. In this embodiment, the two magnetrons are arranged on the upper and lower surfaces of the heating chamber, and a method of irradiating the food with high frequency from above and below is adopted.

【0019】図4は本加熱装置の制御器56の回路図の
一部分である。前述した如く本加熱装置にはICカード
が搭載されており、この為の接続は当然必要であり、図
3に示した多数のリレー用駆動回路、さらにはクロック
発振回路、電源リップル取り込み回路等必須回路が多数
あるが、それらは公知であり、全てを描くと煩雑になる
ので省略し、本発明の為に追加した部分および既存であ
っても本発明の重要な役割を担う部分のみを描いた。
FIG. 4 is a part of a circuit diagram of a controller 56 of the heating apparatus. As described above, the present heating device has an IC card mounted thereon, and connection for this purpose is naturally necessary. Many of the relay drive circuits shown in FIG. 3, and furthermore, a clock oscillation circuit, a power supply ripple capture circuit, and the like are indispensable. There are many circuits, but they are well known and are omitted because they are all complicated, and only the parts added for the present invention and the parts that play an important role of the present invention even if they are existing are drawn. .

【0020】マイクロプロセッサー57には整流平滑回
路58で作られた+V1電圧の直流がVCC端子から供
給され、+V2電圧はダイオード59を介し、+V3電
圧はダイオード60を介して2回路2接点リレーである
扉開リレー61の別々の回路の、一方は常閉接点に、他
方は常開接点に各々接続される。扉開リレー61の二つ
の共通接点間には前記電磁石30のコイルが接続され、
残る二つの接点はマイクロプロセッサー57のO6出力
端子にインバーター62を介して接続される。図は通電
されない状態を示しているからリレースイッチは常閉接
点側に接続されており、電磁石コイルは図の上側が+V
2に、下側がインバーター62の出力に接続され、O6
出力がHiになれば図の上下方向の電流が流れる。逆に
O7出力端子からHi出力がでると扉開リレー61のコ
イルが通電され2回路共に常開接点が閉じ、今度は+V
3電圧が図の下から上の方向に流れる。電磁石30のコ
イルと並列にサージ吸収用のコンデンサーおよび二つの
互いに逆方向のダイオードを接続しておく。なおV3は
V2より高い電圧とし、また+V3に電磁石30のコイ
ルが接続された状態に於いて、U字形状の電磁石は上が
S極に、下がN極になるようにする。
The microprocessor 57 is supplied with a DC of + V1 voltage generated by the rectifying and smoothing circuit 58 from a VCC terminal, a + V2 voltage via a diode 59, and a + V3 voltage via a diode 60 as a two-circuit two-contact relay. One of the separate circuits of the door open relay 61 is connected to a normally closed contact, and the other is connected to a normally open contact. The coil of the electromagnet 30 is connected between two common contacts of the door open relay 61,
The remaining two contacts are connected to the O6 output terminal of the microprocessor 57 via the inverter 62. Since the figure shows a state where power is not supplied, the relay switch is connected to the normally closed contact side, and the upper side of the figure for the electromagnetic coil is + V.
2, the lower side is connected to the output of the inverter 62,
When the output becomes Hi, a vertical current flows in the figure. Conversely, when a Hi output is output from the O7 output terminal, the coil of the door open relay 61 is energized and the normally open contacts are closed in both circuits, and this time, + V
Three voltages flow from the bottom of the figure to the top. A surge absorbing capacitor and two opposite diodes are connected in parallel with the coil of the electromagnet 30. V3 is set to a voltage higher than V2, and in a state where the coil of the electromagnet 30 is connected to + V3, the U-shaped electromagnet is configured so that the upper pole is an S pole and the lower pole is an N pole.

【0021】O1からO5までの五つの出力端子とI1
からI4までの四つの入力端子とで構成されるマトリッ
クスの交点に前述操作部4の各種キー、メモリーキー6
からスタートキー20までの15個が設けられる。表示
部5を構成する蛍光表示管の六つのグリッドには六本の
O出力端子が、九つのアノードには九本のO出力端子が
接続される。
Five output terminals O1 to O5 and I1
At the intersection of the matrix composed of the four input terminals I to I4, various keys of the operation unit 4 and a memory key 6
To start key 20 are provided. Six O output terminals are connected to six grids of the fluorescent display tube constituting the display unit 5, and nine O output terminals are connected to nine anodes.

【0022】一対のホール素子26は同一の二つのIC
化された素子から成り、ICの中にはオペアンプとシュ
ミットトリガーとを有する。マイクロプロセッサー57
の入力端子I5およびI6に接続され、両端子共にHi
の時のみマイクロプロセッサーは扉が閉じられたと判定
するものとする。図4に於いて上に描いた素子26aは
図2(b)でも上側に位置せしめ、左側をS極検出面と
し、下側の26bは左側をN極面とする。
The pair of Hall elements 26 are the same two ICs.
The IC includes an operational amplifier and a Schmitt trigger. Microprocessor 57
Are connected to the input terminals I5 and I6, and both terminals are Hi.
The microprocessor shall determine that the door has been closed only when. The element 26a drawn above in FIG. 4 is also positioned on the upper side in FIG. 2 (b), the left side is the S pole detection surface, and the lower 26b is the left side as the N pole surface.

【0023】図4の下部には以上述べたマイクロプロセ
ッサー57を含む回路とは全く独立した回路を描いた。
整流平滑回路63で作られる+V4電圧は前述のリレー
42および44のコイルを介しスイッチングトランジス
ター64および65に加えられ、その各々のベースには
アンド回路66の出力が接続され、その二つの入力には
前述の一対のホール素子27の出力が接続される。一対
のホール素子27と磁石25との関係は同じホール素子
26、磁石24と同じとする。ホール素子27には+V
5電圧が供給される。
The lower part of FIG. 4 shows a circuit completely independent of the circuit including the microprocessor 57 described above.
The + V4 voltage generated by the rectifying / smoothing circuit 63 is applied to the switching transistors 64 and 65 through the coils of the relays 42 and 44, and the base of each of them is connected to the output of the AND circuit 66. The outputs of the pair of Hall elements 27 described above are connected. The relationship between the pair of Hall elements 27 and the magnet 25 is the same as that of the Hall element 26 and the magnet 24. + V for Hall element 27
Five voltages are supplied.

【0024】図5はマイクロプロセッサー57に納めら
れたプログラムの一部のフローチャートであり、本発明
の本質部分のみを抜きだしたものである。ひし形の判定
箇所に於いて真ならば下に抜け、偽ならば左右どちらか
の横に抜けるものとする。マイクロプロセッサー57に
電源が供給されるとプログラムがスタートする。全ての
出力、全てのフラッグのOFFを含む初期処理が済むと
キーイン判定67に進み、キーが押されない間は右に進
み、下がってLE=1つまりLOCKに関する5番目の
フラッグであってLOCK状態で調理に入っている事を
表すフラッグの判定68に進む。最初は当然1ではない
から右へ進み、表示を含む各種処理69を行い、時間計
測70を経て、設定時間の終了判定71を右に進み、扉
開判定72を右に進み前述の短絡リレー46、47をO
FFし、LD=1のフラッグ判定73を右に進み上に上
がってキーイン67に戻り、これをループ状に何度もく
りかえす。
FIG. 5 is a flowchart of a part of the program stored in the microprocessor 57, and shows only essential parts of the present invention. If it is true at the diamond-determined portion, it will fall down, and if it is false, it will fall to the left or right side. When power is supplied to the microprocessor 57, the program starts. When the initial processing including the OFF of all the outputs and all the flags is completed, the process proceeds to the key-in determination 67, while the key is not pressed, the process proceeds to the right, and goes down to LE = 1, that is, the fifth flag relating to LOCK in the LOCK state. The process proceeds to determination 68 of a flag indicating that cooking is in progress. At first, it naturally goes to the right because it is not 1, the various processes 69 including display are performed, and after the time measurement 70, the end judgment 71 of the set time goes to the right, the door open judgment 72 goes to the right, and the short-circuit relay 46 O, 47
The FF is performed, the flag determination 73 of LD = 1 proceeds to the right, goes up and returns to the key-in 67, and this is repeated many times in a loop.

【0025】キーが押されるとキーイン67は下に抜
け、LE=1判定74に進む。最初は前述した如くフラ
ッグはOFFつまり0であるから左、押されたキーがL
OCKか否かの判定75に進む。LOCKでない場合は
数字キーか否かの判定76に進み、数字であればその下
のLA=1つまりLOCKに関する1番目のフラッグで
ありLOCKキーが最初に押された状態か否かの判定7
7へと進む。まだフラッグはOFFのままであるから右
に進み適当なキー処理を受け、下のLE=1フラッグ判
定68へと進み、後は前述と同様である。
When the key is pressed, the key-in 67 moves down and proceeds to LE = 1 determination 74. At first, as mentioned above, the flag is OFF, that is, 0, so the left key is L
The process proceeds to determination 75 of whether or not it is OCK. If it is not LOCK, the process proceeds to determination 76 of whether it is a numeric key. If it is a numeral, LA = 1 below it, that is, the first flag relating to LOCK, and determination 7 of whether or not the LOCK key is pressed first is performed.
Proceed to 7. Since the flag is still OFF, it proceeds to the right to receive appropriate key processing, proceeds to the LE = 1 flag determination 68 below, and the rest is the same as described above.

【0026】判定75に於いて押されたキーがLOCK
であれば下のLB=1判定78に進み、最初は0である
から左に進み、LA=1の判定79でさらに左へと進
み、LAフラッグを1にして下へと抜ける。後は前述と
同様である。次に数字キーが押されると判定76の下、
LA=1判定77で今度は下に抜け、数字は順に三つま
でRAMに収納される。数字3桁が収納されたか否かの
判定80に於いて未収納ならば左、収納完了すれば下に
抜け、LOCKに関するフラッグの2番目3桁の数字収
納完了を表すフラッグLBを1にし、先のLAフラッグ
を0に戻して下に抜ける。
The key pressed in judgment 75 is LOCK
If so, the process proceeds to the lower LB = 1 determination 78, and initially proceeds to the left because it is 0, and further proceeds to the left in the determination 79 of LA = 1, sets the LA flag to 1, and exits downward. The rest is the same as described above. Next, when it is determined that the numeric key is pressed, under the judgment 76,
In the case of LA = 1 determination 77, this time, the number goes down, and up to three numbers are sequentially stored in the RAM. In the determination 80 as to whether or not three digits have been stored, if no storage has been completed, the storage is left, and if storage is completed, the process goes down. The flag LB indicating the completion of storage of the second three digits of the LOCK flag is set to 1, and Set the LA flag back to 0 and exit.

【0027】次に再びLOCKキーが押されると判定7
5を下に進みLB=1判定78に於いて今度は真である
から下に抜け、ICカードにアクセスし、前述のRAM
に収納された3桁の数字に対応するICカードの番地か
ら調理用データを取り出し、それを調理用RAMに収納
し、LOCKキーに関する3番目のフラッグLCつまり
調理用データ取り出し完了を表すフラッグを1とし、先
のLBフラッグを0に戻して下に抜ける。各種処理に於
いて調理データを取りだしたICカードの番地、例えば
153およびLOCK状態を示す小さい丸を表示管に表
示する処理も行われる。LC=1の間はこの表示を持続
する。
Next, it is determined that the LOCK key is pressed again 7
5 and go down because it is true in the LB = 1 judgment 78, and access the IC card,
The cooking data is extracted from the address of the IC card corresponding to the three-digit number stored in the RAM, and the extracted data is stored in the cooking RAM, and the third flag LC relating to the LOCK key, that is, the flag indicating the completion of the cooking data extraction, is set to 1. Then, the LB flag is returned to 0, and the vehicle goes down. In various processes, the process of displaying the address of the IC card from which the cooking data has been extracted, for example, 153 and a small circle indicating the LOCK state on the display tube is also performed. This display is maintained while LC = 1.

【0028】この状態で先に述べたキーイン判定67、
LE=1判定68、各種処理69、時間計測70から7
1、72、73そしてキーイン判定67へと戻るループ
を回る間に扉が開けられると判定72が真となり下へ抜
ける。全ての出力はOFFとなり、LOCK状態で扉が
開かれた事を表す4番目のフラッグLDを1にする。遅
延フラッグLF=1判定81に進み、当初はLF=0で
あるから右に抜け、LFを1にした後に67に戻る。次
に判定81に到達すると今度はLF=1であるから下に
進み、LFを0にした後に短絡リレー46、47をON
し、続いて扉開OFFつまり出力端子O6、O7ともに
OFFしてキーイン判定67に戻る。
In this state, the key-in determination 67 described above,
LE = 1 determination 68, various processes 69, time measurement 70 to 7
If the door is opened while going through the loop returning to 1, 72, 73 and the key-in judgment 67, the judgment 72 becomes true and the game goes down. All outputs are turned off, and the fourth flag LD indicating that the door is opened in the LOCK state is set to 1. The process proceeds to the delay flag LF = 1 determination 81, and initially goes to the right because LF = 0, and returns to 67 after setting LF to 1. Next, when reaching the judgment 81, since LF = 1, the process proceeds downward, and after setting LF to 0, the short-circuit relays 46 and 47 are turned on.
Subsequently, the door is opened OFF, that is, both the output terminals O6 and O7 are turned OFF, and the process returns to the key-in determination 67.

【0029】この状態でループを回る間に扉が閉じられ
ると扉開判定72で右に進み、LD=1判定73が今度
は真であるから下に抜け、すぐにLDは0に戻され、L
C=1のフラッグ判定82に進み、先ほど1になった直
後であるからここを下に抜け、LEフラッグが1とな
る。これはLOCK完了後扉が閉じられた事により調理
が始まる状態を示す。
In this state, if the door is closed while going through the loop, the door advances to the right in the door open determination 72, and the LD = 1 determination 73 is true this time, so the CPU goes down and the LD is immediately returned to 0. L
The process proceeds to the flag determination 82 of C = 1, and since it has just become 1 earlier, it goes down and the LE flag becomes 1. This indicates a state in which cooking is started when the door is closed after the LOCK is completed.

【0030】ループを回る間にLEフラッグ判定68に
到達すると今度は真であるから下に進み調理用RAMに
収納されたデータで調理を行う。実際にはマグネトロン
54、55に通電する為のリレー41、43をONする
等の動作が行われる訳であるが既知であり、省略する。
この状態でループを回る間にデータ中の調理時間に等し
い時間が経過すると終了判定71が真つまり1となり下
に抜ける。出力は全てOFFされ、終了音が鳴らされ、
また記載していないが終了判定はすぐに0に戻される。
LEフラッグ判定83を経て扉開リレー61用の出力O
7がONとなり、電磁石30は扉に固定された磁石2
8、29と反発する極性になり、扉1はその力で開く。
LEフラッグは0に戻され、ループに戻る。扉が開けば
扉開判定72で下に抜け、出力をOFFした後LDフラ
ッグを1に戻し、前述した如く遅延フラッグLF=1判
定81により一度目は右に抜け、二度目にようやく下に
進み短絡リレー46、47をONし、扉開リレーをOF
Fした後ループに戻る。
When the LE flag determination 68 is reached during the loop, the result is true this time and the process proceeds downward to perform cooking using the data stored in the cooking RAM. Actually, operations such as turning on the relays 41 and 43 for energizing the magnetrons 54 and 55 are performed, but are known and will not be described.
In this state, if a time equal to the cooking time in the data elapses while going around the loop, the end determination 71 is true, that is, 1 and the process goes down. All outputs are turned off, an end sound is played,
Although not described, the termination judgment is immediately returned to 0.
Output O for door open relay 61 through LE flag judgment 83
7 is turned on, and the electromagnet 30 is the magnet 2 fixed to the door.
The polarity is repelled to 8, 29, and the door 1 is opened by the force.
The LE flag is set back to 0 and returns to the loop. When the door is opened, the door is opened downward in the door open determination 72, the output is turned off, and then the LD flag is returned to 1. As described above, the delay flag LF = 1 determination 81 makes the first exit to the right, and the second time the final advance. Turn on the short-circuit relays 46 and 47 and turn the door open relay on
After F, return to the loop.

【0031】LD=1の状態でループを回る間に再び扉
が閉じられると扉開判定72の右LD=1判定73の下
と進み、LC=1判定82も下に抜け、再度LEは1と
なり、調理が始まる。LOCK調理状態に於いて取消キ
ー7が押されるとキーイン判定67、LE=1フラッグ
判定74に続き取消キーか否かの判定84を下に抜け、
オールOFF、つまり出力、フラッグ、調理用RAMデ
ータ等がOFFとなりLOCK状態も解除される。LC
フラッグは取消キーを押すか、電源を切る事でのみOF
Fとなる。LOCK状態以外の場合でも取消キー7が押
されればオールOFFとなる。
If the door is closed again during the loop in the state of LD = 1, the process proceeds below the right LD = 1 judgment 73 of the door open judgment 72, the LC = 1 judgment 82 also goes down, and the LE again becomes 1 And cooking begins. When the cancel key 7 is pressed in the LOCK cooking state, the key-in judgment 67, the LE = 1 flag judgment 74, and the judgment 84 as to whether or not the key is the cancel key are made to go down.
All OFF, that is, the output, flag, cooking RAM data and the like are turned OFF, and the LOCK state is also released. LC
The flag can be turned off only by pressing the cancel key or turning off the power.
It becomes F. If the cancel key 7 is pressed even in a state other than the LOCK state, all the signals are turned off.

【0032】その他注釈を加えるとフロー下部のLE=
1判定83によりLOCK状態以外の場合は扉開リレー
61はONされない。また扉の開閉によりLDフラッグ
は1と0とに変化するがLC=1判定82によりLOC
K状態でない場合は右に抜け、調理開始にはならない。
また調理中であるか否かに関わらず扉が開けられた時は
LF判定81によりループを一回りした後でなければ短
絡リレーはONしない。
If other annotations are added, LE =
In the case other than the LOCK state according to 1 determination 83, the door open relay 61 is not turned on. When the door is opened and closed, the LD flag changes to 1 and 0.
If it is not in the K state, it goes to the right and does not start cooking.
When the door is opened regardless of whether cooking is in progress or not, the short-circuit relay is not turned on unless the circuit goes around the loop by LF judgment 81.

【0033】以上図5のフローのまとめとして本発明全
体の作用を説明する。LOCKキー9を押した後に3桁
の数字キーを入力し、その後再びLOCKキーが押され
る事によりLOCK状態となり、3桁の数字に対応した
ICカードの番地に収納された調理情報がRAMに記録
され、図1に示す如く表示部にその番地が表示される。
扉が開閉すると一対のホール素子26、27に対応した
2極着磁フェライトの磁石24、25が離れたり近づい
たりする結果一対の素子はOFF、ONに変化する。い
たずら等で外部から磁石が近づけられても一対の素子の
一方のみがONするだけであり、他方はOFFのままで
あるから誤動作は発生しない。通常電磁石には扉中央部
に固定された磁石28、29と吸引する方向の電流が流
れているので扉が閉じられると吸引し、閉じた状態を保
持する。
The overall operation of the present invention will be described as a summary of the flow of FIG. After the LOCK key 9 is pressed, a three-digit number key is input, and then the LOCK key is pressed again to enter a LOCK state, and the cooking information stored in the address of the IC card corresponding to the three-digit number is recorded in the RAM. Then, the address is displayed on the display unit as shown in FIG.
When the door opens and closes, the magnets 24 and 25 of the two-pole magnetized ferrite corresponding to the pair of Hall elements 26 and 27 move apart and approach, so that the pair of elements changes to OFF and ON. Even if a magnet is approached from the outside due to mischief or the like, only one of the pair of elements is turned ON and the other remains OFF, so that no malfunction occurs. Normally, current flows in the direction of attraction with the magnets 28 and 29 fixed to the center of the door to the electromagnet, so that when the door is closed, it is attracted and the closed state is maintained.

【0034】扉が開から閉へと転じると表示された3桁
の番地のICカード情報に基づいて調理が開始し、終了
すると電磁石は逆方向の電流が流され、それによって発
生する磁界が磁石28、29に反発する極性なので扉が
開く。以降取消キー7が押されるまでLOCK状態が継
続し、扉を閉じる度に表示番地の調理ソフトで動作し、
自動的に扉が開くのである。なおLOCK状態でない通
常の場合にはモード選択および調理スタートの二つの操
作が必要であり、扉も手動で開けるものとする。
When the door turns from open to closed, cooking starts based on the displayed IC card information of the three-digit address, and when it finishes, an electric current flows in the opposite direction to the electromagnet. The door opens because it has a polarity that repels 28 and 29. Thereafter, the LOCK state is continued until the cancel key 7 is pressed, and each time the door is closed, it operates with the cooking software of the displayed address,
The door opens automatically. In the normal case where the LOCK state is not established, two operations of mode selection and cooking start are required, and the door is manually opened.

【0035】二重の発振停止装置の要求は一対のホール
素子26、マイクロプロセッサー57およびリレー4
1、43の組み合わせと、ホール素子27、アンド回路
66およびリレー42、44の組み合わせとの二組を設
ける事で満たされ、モニター要求は短絡リレー46、4
7およびフューズ33とで満足される。短絡リレーはL
F判定81によりソフト的に遅延されているので故障で
ないのにフューズが飛ぶ事故を防止する。さらに外部か
ら操作できない構成の要求は先に述べた如く磁石を近づ
けても素子26aまたは素子26bの一方のみしかON
しない事で満足している。
The requirement for the double oscillation stop device is that the pair of Hall elements 26, microprocessor 57 and relay 4
1 and 43 and the combination of the Hall element 27, the AND circuit 66, and the relays 42 and 44 are satisfied.
7 and the fuse 33. Short circuit relay is L
Since the delay is caused by the software in the F determination 81, an accident in which the fuse does not fly even if it is not a failure is prevented. Further, the requirement for a configuration that cannot be operated from outside is that only one of the element 26a and the element 26b is turned on even when the magnet is brought close to the element as described above.
I'm happy not to.

【0036】多数のマイクロスイッチを用いる従来方式
とは異なり扉の開閉が軽く、電磁石30に+V3電圧が
加えられた時には扉開成を妨げる要素は皆無、強いて言
えばヒンジ部の摩擦のみであるから簡単に扉は開き、可
動部がないため耐久性、信頼性が大幅に向上する。
Unlike the conventional method using a large number of microswitches, the opening and closing of the door is light, and when + V3 voltage is applied to the electromagnet 30, there is no element that hinders the opening of the door. The door opens and there are no moving parts, so durability and reliability are greatly improved.

【0037】加熱モード選択および動作開始操作の簡略
化は加熱パターン特定手段としてLOCKキー9を設け
る事および特定解除手段として解除機能を取消キー7に
持たせる事により実現できた。従来例で述べた如く、扉
を閉じれば動作開始する例は以前にも存在したがあまり
普及しなかった。主な理由は3種類の危険性が挙げられ
る。一つは空焼による機器への損傷の可能性、二つ目は
被加熱物の発火の危険性であり、三つ目は修理や組立調
整時の感電の危険性である。特に三つ目の感電は扉が閉
じられ、タイマーが回された状態であれば電源コードを
コンセントに差し込んだだけでマグネトロンに高電圧が
発生するので感電の可能性が高く、最も危険であるが、
本発明によれば電源を投入しただけではLOCK状態に
なり得ないので安全である。また取消キー7を押せば直
ちに特定状態を解除できるのでこれも安全性向上に寄与
する。
The simplification of the heating mode selection and the operation start operation can be realized by providing the LOCK key 9 as the heating pattern specifying means and providing the canceling key 7 with a canceling function as the specifying canceling means. As described in the conventional example, an example in which the operation starts when the door is closed has existed before, but has not been widely used. The main reasons are three types of danger. The first is the possibility of damage to the equipment due to dry burning, the second is the danger of ignition of the heated object, and the third is the danger of electric shock during repair and assembly adjustment. Especially in the third electric shock, if the door is closed and the timer is turned, simply plugging the power cord into the outlet will generate a high voltage in the magnetron, so the possibility of electric shock is high, and it is the most dangerous. ,
According to the present invention, it is safe because the LOCK state cannot be obtained only by turning on the power. In addition, the specific state can be immediately released by pressing the cancel key 7, which also contributes to the improvement of safety.

【0038】以上述べた如く本発明によれば扉を閉じる
だけでICカードに収納された多数の調理情報(ソフ
ト)の中から任意の一つを自動的に実行し、しかも調理
終了後に自動的に扉が開き、操作する作業者は食品の出
し入れと扉を閉じるだけの簡単、単純な動作のみである
から加熱器が5台、10台と増えても一人で操作可能で
ある。
As described above, according to the present invention, any one of a large number of pieces of cooking information (software) stored in an IC card is automatically executed just by closing a door, and automatically after cooking is completed. The door is opened, and the operator who operates it is only a simple and simple operation of taking in and out the food and closing the door. Therefore, even if the number of heaters is increased to five or ten, the operator can operate alone.

【0039】本発明は従来のICカード搭載のマイクロ
波加熱器にLOCK機能および扉自動開成機能の二つを
設け、この二つの効果により高性能ではあるが容量の小
さな加熱器を多数並べ、一人で操作可能とし、大容量加
熱器に変身せしめ、マイクロ波を食品工業へ応用する道
を開いたものである。加熱パターン特定手段として専用
のLOCKキー9を設け、他の機能との兼用キーである
数字キー10から19の3つの組み合わせの前後にこの
専用キー9を押す事により3つの組み合わせに対応した
番地のICカードの調理ソフト、調理情報を引き出し、
その状態で特定した。
According to the present invention, a conventional microwave heater equipped with an IC card is provided with two functions, a LOCK function and an automatic door opening function. By these two effects, a number of high-performance but small-capacity heaters are arranged. It can be operated with a microwave oven, transformed into a large-capacity heater, and opened the way to apply microwaves to the food industry. A dedicated LOCK key 9 is provided as a heating pattern specifying means, and by pressing this dedicated key 9 before and after three combinations of numeric keys 10 to 19 which are keys shared with other functions, addresses corresponding to the three combinations are obtained. Extract cooking software and cooking information of IC card,
Identified in that state.

【0040】扉自動開成機構は従来からも存在したが本
発明は発振停止装置として互いに反対磁界に反応する一
対のホール素子採用により無接点化を図り、開扉力を大
幅削減し、電磁石と永久磁石との反発力による扉開成を
実現したものである。
Although an automatic door opening mechanism has existed in the past, the present invention employs a pair of Hall elements which respond to mutually opposing magnetic fields as an oscillation stop device, thereby achieving non-contact, greatly reducing the door opening force, and making the electromagnet permanent. The door was opened by the repulsive force of the magnet.

【0041】これら両者の相乗効果により作業がより簡
単になるが、各々単独であっても少なくとも半分の効果
は存在する。つまり扉自動開成機能がなくとも扉を閉じ
るだけで加熱器が自動的に動作開始すれば便利であり、
また逆にLOCK機能が無くとも調理終了後に自動的に
扉が開けば便利である。
The synergistic effect of these two makes the work easier, but there is at least half the effect even if each is used alone. In other words, it is convenient if the heater starts operating automatically just by closing the door without the automatic door opening function,
Conversely, even if there is no LOCK function, it is convenient if the door is automatically opened after cooking is completed.

【0042】なお加熱パターン特定手段として必ずしも
専用キーを設ける必要はない。例えば3桁の数字キーを
押した後にプログラムキー6と最も離れた位置にあるス
タートキー20とを同時に押す事により加熱パターンを
特定させる事もできる。そして専用キーを設ける方が操
作は容易であり誤操作を妨げると共に一種の危険状態に
入る事の意識付けの効果は大きい。
It is not always necessary to provide a dedicated key as the heating pattern specifying means. For example, the heating pattern can be specified by simultaneously pressing the program key 6 and the start key 20 at the farthest position after pressing the three-digit number key. Providing a dedicated key is easier to operate, and prevents erroneous operation and has a greater effect of raising awareness of entering a kind of danger state.

【0043】またLOCKキーを用いた特定状態は一種
の危険状態であるから容易に解除できる事が望ましい。
取消キーを兼用で解除機能を持たせる事によりキーの増
加を防げ、また全ての取消操作が同一キーで行えるので
操作の単純化が図られ、誤操作も防止できる。
Since the specific state using the LOCK key is a kind of dangerous state, it is desirable that the specific state can be easily canceled.
By providing a canceling key and also having a canceling function, it is possible to prevent an increase in the number of keys, and since all canceling operations can be performed with the same key, the operation can be simplified and erroneous operations can be prevented.

【0044】磁石はフェライトを用いたが保磁力が大き
い磁石つまり周囲に金属や他の磁石が近づけられてもそ
の磁力を失わない性質が強ければ良いので、ストロンチ
ウムやセリウムの希土類磁石も使用可能である。
Although a ferrite magnet is used, a magnet having a large coercive force, that is, a strong property that does not lose its magnetic force even when a metal or another magnet is brought close to the surroundings, may be used. is there.

【0045】実施例では扉が閉じられている間、電磁石
30には磁石28、29を吸引する方向の電流を流して
いるが、これは必ずしも必要ではない。電磁石30のU
字型の磁心は鉄等の磁石に吸引される材質で構成される
から電流が流れなくとも磁石28、29に吸引され、扉
1は閉じた状態で保持される。
In the embodiment, while the door is closed, a current is applied to the electromagnet 30 in a direction to attract the magnets 28 and 29, but this is not always necessary. U of electromagnet 30
Since the U-shaped magnetic core is made of a material that is attracted to a magnet such as iron, the magnet is attracted to the magnets 28 and 29 even if no current flows, and the door 1 is held in a closed state.

【0046】特定状態で調理が終了すれば磁石28、2
9に反発する方向の電流を流すが、扉が十分開かない間
に電流を停止すると磁石28、29の吸引力で再び扉が
閉じてしまう危険性があり、またノイズ等による誤信号
も考えられるので扉開成検出後、1回ループを回った後
に再び扉開成が確認された時点で電流停止するものであ
り、安定した動作が確保できる。
When cooking is completed in a specific state, the magnets 28, 2
Although a current flowing in a direction repelling to 9 flows, if the current is stopped while the door is not sufficiently opened, there is a risk that the door will close again due to the attraction force of the magnets 28 and 29, and an erroneous signal due to noise or the like may be considered. Therefore, after the door opening is detected, the current is stopped when the door opening is confirmed again after the loop is turned once and a stable operation can be secured.

【0047】また請求項1の実施例は本実施例からLO
CKキーを削除し、図5のフローの一部を削除すれば良
い。
The embodiment of claim 1 differs from the embodiment in that
The CK key may be deleted, and a part of the flow of FIG. 5 may be deleted.

【0048】[0048]

【発明の効果】以上述べた様に本発明によれば小容量高
性能な汎用加熱器の操作を軽減する事により多数並べ、
一人で操作可能とし、特殊用途専用大容量装置に変身せ
しめ得る。従って高効率、高品質なマイクロ波加熱が食
品工業で利用可能となる。
As described above, according to the present invention, a large number of small-capacity, high-performance general-purpose heaters can be arranged by reducing the number of operations.
It can be operated by one person, and can be transformed into a special-purpose large-capacity device. Thus, high efficiency, high quality microwave heating is available in the food industry.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例の加熱装置の正面図FIG. 1 is a front view of a heating device according to an embodiment of the present invention.

【図2】(a)同右側面図 (b)同実施例における磁石と磁気検出手段との相互関
係を示す斜視図
FIG. 2A is a right side view of the same. FIG. 2B is a perspective view showing a mutual relationship between a magnet and a magnetism detecting means in the embodiment.

【図3】同電気回路図FIG. 3 is an electric circuit diagram of the same.

【図4】同要部電子回路図FIG. 4 is an electronic circuit diagram of the main part.

【図5】同プログラムフロチャートFIG. 5 is a flowchart of the program.

【符号の説明】[Explanation of symbols]

1 扉 7 取消キー(加熱パターン解消手段) 9 LOCKキー(加熱パターン特定手段) 23 加熱室 24、25、28、29 磁石 26、27 ホール素子(磁気検出手段) 30 電磁石 54、55 マグネトロン 56 制御器 57 マイクロプロセッサー 59、60 ダイオード 61 扉開リレー 66 アンド回路 67 キーイン判定 70 時間判定 71 終了判定 72 扉開判定 DESCRIPTION OF SYMBOLS 1 Door 7 Cancel key (heating pattern eliminating means) 9 LOCK key (heating pattern specifying means) 23 Heating chamber 24, 25, 28, 29 Magnet 26, 27 Hall element (magnetic detecting means) 30 Electromagnet 54, 55 Magnetron 56 Controller 57 Microprocessor 59, 60 Diode 61 Door open relay 66 AND circuit 67 Key-in judgment 70 Time judgment 71 End judgment 72 Door open judgment

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】加熱室と、回動自在に設けられた扉と、マ
グネトロン等の高周波源と、前記高周波源の動作を制御
する制御器と、扉に設けられた複数の磁石と、前記複数
の磁石と対向する位置の加熱室側に設けられた磁気検出
手段および電磁石とを有し、前記制御器は加熱終了時に
対向する磁石に反発する方向の磁界を生じる電流を電磁
石に流す事を特徴とする加熱装置。
1. A heating chamber, a rotatably provided door, a high frequency source such as a magnetron, a controller for controlling the operation of the high frequency source, a plurality of magnets provided on the door, A magnet detecting means and an electromagnet provided on the side of the heating chamber at a position facing the magnet, and wherein the controller supplies a current to the electromagnet to generate a magnetic field in a direction repelling the facing magnet at the end of heating. And a heating device.
【請求項2】磁気検出手段として互いに反対磁界に反応
する一対のホール素子を用い、これと対向する磁石はホ
ール素子が反応する磁界と等しい極性に着磁されたフェ
ライト磁石または希土類磁石とした事を特徴とする請求
項1に記載の加熱装置。
2. A pair of Hall elements responsive to mutually opposite magnetic fields are used as magnetism detecting means, and a magnet opposed thereto is a ferrite magnet or a rare earth magnet magnetized to the same polarity as the magnetic field responsive to the Hall elements. The heating device according to claim 1, wherein:
【請求項3】電磁石に流す電流は、扉が開かれた事を検
出した後の一定時間経過後に停止する事を特徴とする請
求項1又は2記載の加熱装置。
3. The heating device according to claim 1, wherein the current supplied to the electromagnet is stopped after a lapse of a predetermined time after detecting that the door is opened.
【請求項4】加熱室と、回動自在に設けられた扉と、マ
グネトロン等の高周波源と、前記高周波源の動作を制御
する制御器と、扉に設けられた複数の磁石と、前記複数
の磁石と対向する位置の加熱室側に設けられた磁気検出
手段および電磁石と、加熱パターン特定手段と特定解除
手段とを有し、前記制御器は特有の加熱パターンに特定
されている間、磁気検出手段が磁気を検出開始後に前記
加熱パターンで高周波源を動作させ、電磁石には加熱終
了時に対向する磁石に反発する方向の磁界を生じる電流
を流す事を特徴とする加熱装置。
4. A heating chamber, a rotatably provided door, a high-frequency source such as a magnetron, a controller for controlling the operation of the high-frequency source, a plurality of magnets provided on the door, Having a magnetism detecting means and an electromagnet provided on the side of the heating chamber at a position facing the magnet, a heating pattern specifying means and a specification canceling means, and the controller controls the magnetism while being specified to the specific heating pattern. A heating device characterized in that a high frequency source is operated by the heating pattern after the detection means starts detecting the magnetism, and a current is generated in the electromagnet, which generates a magnetic field in a direction repelling the opposing magnet at the end of heating.
【請求項5】加熱パターン特定手段として専用キーを設
け、所定の加熱パターンに対応したキー操作の前後に押
す事により加熱パターンを特定する事を特徴とする請求
項4に記載の加熱装置。
5. The heating apparatus according to claim 4, wherein a dedicated key is provided as a heating pattern specifying means, and the heating pattern is specified by pressing before and after a key operation corresponding to a predetermined heating pattern.
【請求項6】特定解除手段として取消キーを兼用させた
事を特徴とする請求項4又は5に記載の加熱装置。
6. The heating device according to claim 4, wherein a cancellation key is also used as the specific release means.
【請求項7】磁気検出手段として互いに反対磁界に反応
する一対のホール素子を用い、これと対向する磁石はホ
ール素子が反応する磁界と等しい極性に着磁されたフェ
ライト磁石または希土類磁石とした事を特徴とする請求
項4ないし6のいずれか1項に記載の加熱装置。
7. A pair of Hall elements responsive to mutually opposite magnetic fields are used as magnetic detecting means, and a magnet opposed thereto is a ferrite magnet or a rare earth magnet magnetized to the same polarity as the magnetic field responsive to the Hall elements. The heating device according to any one of claims 4 to 6, wherein:
【請求項8】電磁石に流す電流は、扉が開かれた事を検
出した後の一定時間経過後に停止する事を特徴とする請
求項4ないし7のいずれか1項に記載の加熱装置。
8. The heating device according to claim 4, wherein the current flowing through the electromagnet is stopped after a lapse of a predetermined time after detecting that the door has been opened.
JP26809896A 1996-10-09 1996-10-09 Heating device Expired - Fee Related JP3708250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26809896A JP3708250B2 (en) 1996-10-09 1996-10-09 Heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26809896A JP3708250B2 (en) 1996-10-09 1996-10-09 Heating device

Publications (2)

Publication Number Publication Date
JPH10112381A true JPH10112381A (en) 1998-04-28
JP3708250B2 JP3708250B2 (en) 2005-10-19

Family

ID=17453873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26809896A Expired - Fee Related JP3708250B2 (en) 1996-10-09 1996-10-09 Heating device

Country Status (1)

Country Link
JP (1) JP3708250B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398043C (en) * 2002-04-09 2008-07-02 乐金电子(天津)电器有限公司 Pressure connection detection circuit for induction heating type cooker
WO2020151596A1 (en) * 2019-01-23 2020-07-30 海尔智家股份有限公司 Heating apparatus and refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398043C (en) * 2002-04-09 2008-07-02 乐金电子(天津)电器有限公司 Pressure connection detection circuit for induction heating type cooker
WO2020151596A1 (en) * 2019-01-23 2020-07-30 海尔智家股份有限公司 Heating apparatus and refrigerator
EP3913309A4 (en) * 2019-01-23 2022-03-09 Haier Smart Home Co., Ltd. Heating apparatus and refrigerator
US12013178B2 (en) 2019-01-23 2024-06-18 Haier Smart Home Co., Ltd. Heating device and refrigerator

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