JP2010044912A - Business-use electromagnetic induction heater - Google Patents

Business-use electromagnetic induction heater Download PDF

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JP2010044912A
JP2010044912A JP2008207094A JP2008207094A JP2010044912A JP 2010044912 A JP2010044912 A JP 2010044912A JP 2008207094 A JP2008207094 A JP 2008207094A JP 2008207094 A JP2008207094 A JP 2008207094A JP 2010044912 A JP2010044912 A JP 2010044912A
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heating coil
electromagnetic induction
peripheral
cooking pan
induction heater
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JP2010044912A5 (en
JP4842304B2 (en
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Akio Nakai
昭夫 中井
Yoshinori Nakagawa
義則 中川
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Nakai KK
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a business-use electromagnetic induction heater useful for a large-sized cooking pan of about 45 liters or more. <P>SOLUTION: The business-use electromagnetic induction heater heats a bottom-face center part of a cone-shaped or a semi-spherical conductive cooking pan (7) by a center heating coil portion (11a) of the same by way of vertically penetrating a magnetic body core axis (12) through the center heating coil portion (11a) which includes a smaller winding diameter in a one-piece electromagnetic induction heating coil (C). It is so arranged that a peripheral bottom-face part of the cooking pan (7) is heated almost in an overall uniformity with the bottom-face center part through the use of at least two peripheral heating coil portions (11b) (11c), each with a different winding diameter and separated by a constant gap (X2) from the other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は高粘度なカスタードクリームや餡、チョコレート、ジャム、シチュー、カレールーなどの煮炊き調理を初め、焼きそばや焼き飯、野菜などの炒め調理に使う業務用の電磁誘導加熱器に関する。   The present invention relates to an electromagnetic induction heater for business use used for stir-cooking of fried noodles, fried rice, vegetables and the like, as well as boiled cooking such as high-viscosity custard cream, strawberries, chocolate, jam, stew, and carrero.

本発明の出願人が先に提案した特願2008−98488号発明では、その電磁誘導加熱器(H)を容量が約11リットルの導電性調理鍋(7)に適用したテスト結果として、図17のグラフに示す底面全体のほぼ均一な加熱温度分布状態を確保することができた。
特願2008−98488号明細書と図面
In the invention of Japanese Patent Application No. 2008-98488 previously proposed by the applicant of the present invention, FIG. 17 shows a test result in which the electromagnetic induction heater (H) is applied to a conductive cooking pot (7) having a capacity of about 11 liters. It was possible to ensure a substantially uniform heating temperature distribution across the entire bottom surface shown in the graph.
Japanese Patent Application No. 2008-98488 specification and drawing

ところが、その後も鋭意検討を重ね、上記先願発明の電磁誘導加熱器(H)を容量が約45リットル以上の大型調理鍋(7)に適用テストしたところ、その1本物の電磁誘導加熱コイル(C)が調理鍋(7)の底面を加熱する面積全体のうち、磁性体の芯軸(フェライトコアー)(12)に対する中央加熱コイル部(11a)の巻き回数が多くなって、その中央加熱コイル部(11a)の受け持ち分担する加熱面積の比率が増大すると、直列共振回路(LRC直列回路)の尖鋭度(Q)が高くなる。   However, after earnest examination, the electromagnetic induction heater (H) of the invention of the prior application was tested for application to a large cooking pan (7) having a capacity of about 45 liters or more. Of the entire area where C) heats the bottom surface of the cooking pan (7), the number of turns of the central heating coil portion (11a) around the core axis (ferrite core) (12) of the magnetic material increases, and the central heating coil When the ratio of the heating area shared by the part (11a) increases, the sharpness (Q) of the series resonant circuit (LRC series circuit) increases.

つまり、茲に尖鋭度(Q)は下記数式1の一般式によって表わされるRの数値が、小さくなる結果、上記調理鍋(7)と電磁誘導加熱コイル(C)との上下相互間隙が少しでもバラツキ変化すると、その加熱用インバーター(高周波電源)(29)の出力を有効に活用することができず、加熱力の急激な低下を招くのであり、調理鍋(7)の厚みや食材が変る業務用としてふさわしくない。   In other words, the sharpness (Q) of the jar is such that the numerical value of R represented by the general formula of the following formula 1 becomes smaller. As a result, even if the vertical gap between the cooking pan (7) and the electromagnetic induction heating coil (C) is small, When the variation changes, the output of the heating inverter (high frequency power source) (29) cannot be used effectively, causing a rapid decrease in heating power, and the thickness and ingredients of the cooking pan (7) change. Not suitable for use.

Figure 2010044912
Figure 2010044912

又、それだからと言って、巻き径の小さい中央加熱コイル部(11a)による加熱面積の比率を減少させ、巻き径の大きな周辺加熱コイル部(11b)による加熱面積の比率を相対的に増大させて、その唯一の周辺加熱コイル部(11b)により、上記調理鍋(7)の底面周辺部を加熱すると、その底面周辺部の加熱温度が高くなり過ぎやすく、底面全体の均一な加熱温度分布を得られ難い問題がある。   Also, because of that, the ratio of the heating area by the central heating coil part (11a) having a small winding diameter is decreased, and the ratio of the heating area by the peripheral heating coil part (11b) having a large winding diameter is relatively increased. When the peripheral portion of the bottom surface of the cooking pan (7) is heated by the only peripheral heating coil portion (11b), the heating temperature of the peripheral portion of the bottom surface tends to be too high, and the uniform heating temperature distribution of the entire bottom surface is obtained. There are problems that are difficult to obtain.

本発明はこのような課題の更なる改良を目的としており、その目的を達成するために、請求項1では1本物の電磁誘導加熱コイルにおける巻き径の小さい中央加熱コイル部へ、磁性体の芯軸を垂直に貫通させて、その中央加熱コイル部により円錐形又は半球形導電性調理鍋の底面中央部を加熱する業務用の電磁誘導加熱器において、   SUMMARY OF THE INVENTION The present invention aims to further improve such a problem, and in order to achieve the object, according to claim 1, the core of the magnetic material is transferred to the central heating coil portion having a small winding diameter in a single electromagnetic induction heating coil. In an electromagnetic induction heater for business use that vertically penetrates the shaft and heats the bottom central part of the conical or hemispherical conductive cooking pot by its central heating coil part,

巻き径が相違し且つ互いに一定間隙だけ離隔した少なくとも2つの周辺加熱コイル部により、上記調理鍋の底面周辺部をその底面中央部との全体的なほぼ均一に加熱することを特徴とする。   The at least two peripheral heating coil portions having different winding diameters and separated from each other by a predetermined gap heat the bottom peripheral portion of the cooking pan substantially uniformly with the central portion of the bottom surface.

又、請求項2では中央加熱コイル部が巻き付けられたボビンと、少なくとも2つの周辺加熱コイル部が同芯渦巻き状態に固定設置された篭枠(F)とを、調理鍋の底面に向かって一挙同時に又は各別に昇降調整できるように定めたことを特徴とする。   Further, in claim 2, the bobbin around which the central heating coil portion is wound and the gutter frame (F) in which at least two peripheral heating coil portions are fixedly installed in a concentric spiral state are moved toward the bottom of the cooking pan. It is characterized in that it can be adjusted up and down simultaneously or separately.

更に、請求項3では周辺加熱コイル部の巻き回数を、その巻き径が大きい外側へ行く程徐々に減少させたことを特徴とする。   Further, the third aspect of the present invention is characterized in that the number of turns of the peripheral heating coil portion is gradually decreased toward the outside where the winding diameter increases.

請求項1の構成によれば、食材が水を混入する米だけに限られ、底面が一定不変の薄肉・フラットな炊飯器の内鍋と異なって、円錐形又は半球形に造形された底面の厚みや食材が変る業務用の調理鍋と、電磁誘導加熱コイルとの上下相互間隙にバラツキ変化が起っても、加熱力の急激な低下を招くおそれはなく、高周波電源の出力を最大限に活用して、上記調理鍋における底面全体の均一な加熱温度分布を得られる効果がある。   According to the configuration of claim 1, the food is limited to only rice mixed with water, and unlike the inner pot of a thin and flat rice cooker whose bottom is constant, the bottom of the bottom shaped as a cone or hemisphere Even if there is a variation in the gap between the top and bottom of the cooking pot for business use and the electromagnetic induction heating coil, the heating power will not be drastically reduced, and the output of the high frequency power supply will be maximized. Utilizing this, there is an effect that a uniform heating temperature distribution of the entire bottom surface of the cooking pan can be obtained.

特に、請求項2の構成を採用するならば、調理鍋における底面中央部の加熱温度分布と底面周辺部のそれとを、相違するように調整することもでき、例えば高粘度な各種食材の煮炊き調理では、その食材が底面中央部に焦げ付くことを防止でき、又焼きそばや野菜などの炒め調理では、同じく底面中央部に滞溜する水分をすばやく蒸発させ得るなどの効果がある。   In particular, if the configuration of claim 2 is adopted, the heating temperature distribution at the bottom center of the cooking pan and that at the bottom periphery can be adjusted to be different, for example, boiled cooking of various ingredients with high viscosity Then, the food can be prevented from scorching at the center of the bottom surface, and the fried cooking of fried noodles and vegetables can also quickly evaporate the water remaining in the center of the bottom surface.

更に、請求項3の構成を採用するならば、複数の周辺加熱コイル部による底面周辺部の加熱温度分布や、延いては底面中央部との全体的な加熱温度分布を均一に保てる効果があり、大型の調理鍋に有用となる。   Furthermore, if the structure of Claim 3 is employ | adopted, there exists an effect which can maintain uniformly the heating temperature distribution of the bottom face periphery part by several peripheral heating coil parts, and the whole heating temperature distribution by the bottom face center part by extension. Useful for large cooking pots.

以下、図面に基いて本発明の具体的構成を詳述すると、図1〜10はカスタードクリームや餡などの高粘度な各種食材を煮炊き調理する業務用の加熱撹拌機(M)と、これに対する電磁誘導加熱器(H)の取付け使用状態を示しており、(1)は加熱撹拌機(M)の据付け機筐であって、一定な大きさのほぼ直方体をなし、その下端角隅部にねじ込まれた接地脚座(2)により、据付け高さを調整できるようになっているが、これに代えて又は加えて、据付け場所の変更可能なブレーキ付きキャスター(3)を軸支しても良い。   Hereinafter, the specific configuration of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 10 illustrate a business-use heating stirrer (M) for cooking and cooking various high-viscosity ingredients such as custard cream and rice cake, and the like. The electromagnetic induction heater (H) is attached and used. (1) is a mounting machine housing for the heating stirrer (M), which is formed in a substantially rectangular parallelepiped with a fixed size at the corner of its lower end. The installation height can be adjusted by the screwed grounding leg seat (2). Alternatively or in addition, a caster with brake (3) whose installation location can be changed can be pivotally supported. good.

このような据付け機筐(1)の上面は作業しやすい高さの水平な天板(4)として、これから円形の鍋逃し入れ口筒(5)が連続的に曲げ起されている。(6)はその鍋逃し入れ口筒(5)の開口周縁部に固定設置された鍋受け止めリング、(7)は上記鍋逃し入れ口筒(5)へ上方から抜き差し自在に差し込まれて、その鍋受け止めリング(6)により安定良く受け止め保持される食材収容用の調理鍋(ボール鍋)であり、一定な厚み(例えば約3〜6mm)の銅板から一定(例えば約45〜100リットル)の容量を有する円錐形又は半球形に作成されている。   The upper surface of such an installation machine casing (1) is a horizontal top plate (4) having a height that is easy to work with, and a circular pan relief tube (5) is continuously bent from this. (6) is a pan receiving ring fixedly installed at the peripheral edge of the opening of the pan relief mouth tube (5), (7) is inserted into the pan relief mouth tube (5) so as to be freely removable from above, It is a cooking pan (ball pan) for containing foods that is stably received and held by the pan receiving ring (6), and has a constant capacity (for example, about 45 to 100 liters) from a copper plate having a constant thickness (for example, about 3 to 6 mm). It is made into a conical shape or a hemispherical shape.

しかも、その調理鍋(7)の底面には磁性体である鉄粉などの発熱被膜(8)が、一定の厚み(例えば約2〜4mm)だけ溶射されることによって、導電性が与えられている。但し、その導電性を有する限りでは、調理鍋(7)の材質としてフェライト系ステンレス鋼や、鉄とアルミとのクラッド材、アルミとステンレスとのクラッド材などを採用しても良く、磁性体である鉄も採用することができる。   Moreover, the bottom surface of the cooking pan (7) is provided with conductivity by a thermal coating (8) such as iron powder which is a magnetic material being sprayed by a certain thickness (for example, about 2 to 4 mm). Yes. However, as long as it has electrical conductivity, ferritic stainless steel, iron-aluminum clad material, aluminum-stainless steel clad material, etc. may be used as the material of the cooking pan (7). Certain irons can also be used.

尚、図例の調理鍋(7)は約45リットルの容量を有する大型として、厚みが約3〜4mmの銅板又はステンレス鋼板から、直径(内径)が約550mm、深さが約240mmの円錐形に作成されており、炊飯器における底面がフラットな寸胴鍋と異なって、その円錐底面を電磁誘導加熱器(H)により加熱するようになっている。   The cooking pan (7) in the figure is a large size having a capacity of about 45 liters, and is a conical shape having a diameter (inner diameter) of about 550 mm and a depth of about 240 mm from a copper plate or stainless steel plate having a thickness of about 3 to 4 mm. The bottom surface of the rice cooker is different from the flat pan with a flat bottom, and the conical bottom surface is heated by an electromagnetic induction heater (H).

(9)は上記加熱撹拌機(M)の据付け機筐(1)を形作る左右両側壁板(10)の適当な中途高さ位置へ、その内側から溶接された複数の支持ステーであって、アングル形鋼材から成り、電磁誘導加熱器(H)の後述する水平な基台が、その支持ステー(9)へ着脱自在に取り付け固定されるようになっている。   (9) is a plurality of support stays welded from the inside to the appropriate mid-height position of the left and right side wall plates (10) forming the installation case (1) of the heating stirrer (M), It consists of an angle-shaped steel material, and the horizontal base mentioned later of an electromagnetic induction heater (H) is detachably attached and fixed to the support stay (9).

電磁誘導加熱器(H)は図9、10に示すような全体のユニット体として、調理鍋(7)の大きさに対応する長い1本物の電磁誘導加熱コイル(C)と、その電磁誘導加熱コイル(C)における巻き径が小さい中央加熱コイル部(11a)を巻き付けるボビン(B)と、同じく電磁誘導加熱コイル(C)の巻き径が順次大きい少なくとも2つの第1、2周辺加熱コイル部(11b)(11c)を、その隣り合う同士の離隔した同芯渦巻き状態に受け持つ篭枠(F)と、上記ボビン(B)の中心を垂直に貫通する磁性体の芯軸(12)とから成り、これらが共通の基台(13)へ取り付けられたものである。   The electromagnetic induction heater (H) has a single long electromagnetic induction heating coil (C) corresponding to the size of the cooking pan (7) and its electromagnetic induction heating as a whole unit body as shown in FIGS. A bobbin (B) for winding a central heating coil portion (11a) having a small winding diameter in the coil (C), and at least two first and second peripheral heating coil portions (in which the winding diameter of the electromagnetic induction heating coil (C) is successively increased ( 11b) and (11c) are composed of a flange frame (F) that holds the adjacent concentric spirals apart from each other, and a magnetic core shaft (12) that vertically penetrates the center of the bobbin (B). These are attached to a common base (13).

そして、上記電磁誘導加熱コイル(C)の中央加熱コイル部(11a)が磁性体の芯軸(12)による磁束の集中的な浸透作用とも相俟って、調理鍋(7)における底面中央区域(P1)の加熱を分担すると共に、同じく電磁誘導加熱コイル(C)の第1、2周辺加熱コイル部(11b)(11c)が調理鍋(7)における底面周辺区域(P2)(P3)の加熱を分担し、その1本物の電磁誘導加熱コイル(C)によって調理鍋(7)の底面全体を加熱するようになっている。   And the central heating coil part (11a) of the said electromagnetic induction heating coil (C) combined with the concentrated penetration | infiltration effect | action of the magnetic flux by the core shaft (12) of a magnetic body, and the bottom center area in a cooking pan (7) In addition to sharing the heating of (P1), the first and second peripheral heating coil portions (11b) and (11c) of the electromagnetic induction heating coil (C) of the bottom peripheral area (P2) (P3) in the cooking pan (7) The heating is shared, and the entire bottom surface of the cooking pan (7) is heated by the single electromagnetic induction heating coil (C).

即ち、先ずボビン(B)は耐熱性の合成樹脂やベークライトなどの電気絶縁材から、上下一対の水平な張り出しフランジ(14)(15)を備えた一定な背丈(例えば約75mm)の円筒形に作成されており、その胴面に電磁誘導加熱コイル(C)の中央加熱コイル部(11a)が巻き径(d)の小さく巻き付け一体化されている。   That is, first, the bobbin (B) is formed from an electrically insulating material such as heat-resistant synthetic resin or bakelite into a cylindrical shape having a certain height (for example, about 75 mm) having a pair of upper and lower horizontal projecting flanges (14) and (15). The central heating coil portion (11a) of the electromagnetic induction heating coil (C) is wound around and integrated with a small winding diameter (d).

その場合、図例の電磁誘導加熱器(H)では一定な太さ(直径が約7mm)の銅線(リッツ線)から成り、約17mの全体長さを有する電磁誘導加熱コイル(C)のうち、その中央加熱コイル部(11a)を上記ボビン(B)の胴面へ巻き径(d)が平均的に約75mm、背丈が約75mmとして、連続する内外二重の積層螺旋状態に10回巻き付けることにより、上記中央加熱コイル部(11a)の背丈とボビン(B)のそれを低く扁平化しているが、その一重又は三重に巻き付けてもさしつかえない。   In that case, the electromagnetic induction heater (H) shown in the figure is composed of a copper wire (Litz wire) having a constant thickness (diameter of about 7 mm) and an electromagnetic induction heating coil (C) having an overall length of about 17 m. Of these, the central heating coil portion (11a) is wound around the bobbin (B) body surface with a diameter (d) of about 75 mm on average and a height of about 75 mm in a continuous inner and outer double layered spiral state 10 times. By winding, the height of the central heating coil portion (11a) and that of the bobbin (B) are flattened to a low level. However, it may be wound in a single or triple manner.

上記ボビン(B)の上側張り出しフランジ(14)は中央加熱コイル部(11a)の巻き径(d)とほぼ同じ外径を有しており、これよりも径大な下側張り出しフランジ(15)が、非磁性体から成る複数の支持ボルト(16)とその固定ナット(17)を介して、上記基台(13)へ昇降操作自在に取り付けられている。そのため、調理鍋(7)の底面とその中央加熱コイル部(11a)との上下相互間隙を、広く又は狭く調整することができる。   The upper overhanging flange (14) of the bobbin (B) has substantially the same outer diameter as the winding diameter (d) of the central heating coil portion (11a), and the lower overhanging flange (15) having a larger diameter than this. However, it is attached to the base (13) so as to be movable up and down via a plurality of support bolts (16) made of a non-magnetic material and its fixing nut (17). Therefore, the upper and lower mutual gaps between the bottom surface of the cooking pan (7) and the central heating coil portion (11a) can be adjusted to be wide or narrow.

但し、加熱撹拌機(M)をメーカーから出荷する際に、その調理鍋(7)と中央加熱コイル部(11a)との上下相互間隙を予じめ適度な一定寸法(例えば約15〜20mm)にセットした位置決め状態として、上記支持ボルト(16)の下端部を基台(13)へ溶接しておくことにより、ユーザーでの調整不能に固定維持しても良い。   However, when the heating stirrer (M) is shipped from the manufacturer, an appropriate constant dimension (for example, about 15 to 20 mm) is anticipated in consideration of the vertical gap between the cooking pan (7) and the central heating coil portion (11a). As the positioning state set to the above, the lower end of the support bolt (16) may be welded to the base (13) so as to be fixed and maintained so as not to be adjustable by the user.

次に、磁性体の芯軸(12)は一定な太さを有する角柱形(例えば一辺が約30mmの正方形)又は円柱形(例えば直径が約30mm)のフェライトから成り、その背丈(身長)が一定な寸法(例えば約75〜85mm)として、上記ボビン(B)の中心を貫通する垂立状態にある。   Next, the core axis (12) of the magnetic body is made of a prism having a certain thickness (for example, a square having a side of about 30 mm) or a cylindrical shape (for example, having a diameter of about 30 mm), and its height (height) is As a fixed dimension (for example, about 75 to 85 mm), the bobbin (B) is in a suspended state penetrating the center.

そのため、電磁誘導加熱コイル(C)の中央加熱コイル部(11a)を流れる高周波電流によって起生される磁束(Z)が、上記芯軸(12)から図12の矢印で示す如く調理鍋(7)に浸透して、その調理鍋(7)の底面中央区域(P1)を加熱することができる。   Therefore, the magnetic flux (Z) generated by the high-frequency current flowing through the central heating coil portion (11a) of the electromagnetic induction heating coil (C) causes the cooking pan (7) as shown by the arrow in FIG. 12 from the core shaft (12). ) To heat the bottom central region (P1) of the cooking pan (7).

しかも、その芯軸(12)の下端部を受け持つ1本のセンターボルト(18)が、やはり上記基台(13)へ昇降操作自在に取り付けられており、調理鍋(7)の底面と芯軸(12)の頂面との上下相互間隙(s1)を、広く又は狭く調整することができるようになっている。(19)はその調整状態の固定ナットであり、上記センターボルト(18)と同じくアルミなどの磁性体から成る。   In addition, one center bolt (18) that handles the lower end of the core shaft (12) is also attached to the base (13) so as to be movable up and down, and the bottom surface of the cooking pan (7) and the core shaft The upper and lower mutual gap (s1) with the top surface of (12) can be adjusted to be wide or narrow. Reference numeral (19) denotes a fixed nut in the adjusted state, which is made of a magnetic material such as aluminum as in the case of the center bolt (18).

但し、上記ボビン(B)の支持ボルト(16)や芯軸(12)のセンターボルト(18)に代わる電気絶縁材の調整板(20)を、図11のようにボビン(B)の下側張り出しフランジ(15)や芯軸(12)の下端部と、基台(13)との上下相互間へ介挿状態に貼り付けると共に、その調整板(20)の厚みを変えることにより、上記調理鍋(7)の底面と芯軸(12)の頂面との上下相互間隙(s)や、同じく調理鍋(7)とその中央加熱コイル部(11a)との上下相互間隙を、メーカーでの予じめ調整した位置決め状態に固定維持しても良い。   However, the adjustment plate (20) of the electric insulating material, which replaces the support bolt (16) of the bobbin (B) and the center bolt (18) of the core shaft (12), is provided on the lower side of the bobbin (B) as shown in FIG. By pasting the protruding flange (15) or the lower end of the core shaft (12) and the base (13) in an inserted state, the thickness of the adjustment plate (20) is changed, thereby changing the cooking The upper and lower mutual gap (s) between the bottom surface of the pan (7) and the top surface of the core shaft (12) and the upper and lower mutual gap between the cooking pan (7) and the central heating coil portion (11a) The positioning may be fixed and maintained in advance.

又、上記篭枠(F)は一定の太さ(例えば直径が約5〜8mm)を有するステンレス鋼棒や望ましくはアルミ棒、その他の非磁性体の金属骨材から、調理鍋(7)の底面周辺区域(P2)(P3)と対応する大きさ・形状(円錐受け皿形)の包囲篭として枠組み一体化されたものであり、上記長い1本物の電磁誘導加熱コイル(C)における巻き径の順次大きい少なくとも2つの第1、2周辺加熱コイル部(11b)(11c)が、各々一重の渦巻き状態として、その篭枠(F)を形作る約上半部の円弧受け杆(21)へ、上方から固定設置されている。   Further, the frame (F) is made of a stainless steel bar having a certain thickness (for example, a diameter of about 5 to 8 mm), preferably an aluminum bar, or other non-magnetic metal aggregate of the cooking pan (7). The frame is integrated as an enclosure of a size and shape (conical saucer shape) corresponding to the bottom peripheral area (P2) (P3), and the winding diameter of the long single electromagnetic induction heating coil (C) is At least two first and second peripheral heating coil portions (11b) and (11c), which are successively larger, are moved upwardly into an arc receiving rod (21) in the upper half portion that forms the rod frame (F) in a single spiral state. It is fixedly installed.

図例の場合、上記巻き径が小さい内側の第1周辺加熱コイル部(11b)を、6回だけ渦巻き状態に固定設置して、その帯幅(w1)を約75mmに保つ一方、これよりも巻き径が大きい外側の第2周辺加熱コイル部(11c)を、5回の渦巻き状態として固定設置することにより、その帯幅(w2)を約60mmに保っているが、上記第1、2周辺加熱コイル部(11b)(11c)の巻き回数については、その巻き径の大きい外側へ行く程徐々に減少させて、調理鍋(7)の底面全体を均一に加熱し得る限り、調理鍋(7)の大きさに応じた適当な数値に設定すれば良い。   In the case of the illustrated example, the inner first peripheral heating coil portion (11b) having a small winding diameter is fixedly installed in a spiral state only six times, and the band width (w1) is maintained at about 75 mm, but more than this. The outer peripheral second heating coil portion (11c) having a large winding diameter is fixedly installed in a state of five spirals, so that the band width (w2) is maintained at about 60 mm. The number of turns of the heating coil portions (11b) and (11c) is gradually decreased as the winding diameter increases and the entire bottom surface of the cooking pan (7) can be heated uniformly. ) May be set to an appropriate numerical value according to the size.

他方、同じく篭枠(F)の約下半部は上記円弧受け杆(21)から連続的に折り曲げ垂下された脚杆(22)として、その複数により上記電磁誘導加熱コイル(C)の中央加熱コイル部(11a)とボビン(B)を包囲する平行状態にあり、その各脚杆(22)の下端ネジ杆部(22a)が非磁性体の固定ナット(23)によって、上記基台(13)へ昇降操作自在に取り付けられている。   On the other hand, about the lower half part of the flange frame (F) is a leg rod (22) continuously bent from the circular arc receiving rod (21), and the central heating of the electromagnetic induction heating coil (C) by the plurality of leg rods (22). The coil portion (11a) and the bobbin (B) are in a parallel state, and the lower end screw flange portion (22a) of each leg rod (22) is fixed to the base (13) by a non-magnetic fixing nut (23). ) Can be moved up and down.

そのため、上記調理鍋(7)の底面とその第1、2周辺加熱コイル部(11b)(11c)との上下相互間隙も、広く又は狭く調整することができる。但し、上記ボビン(B)に巻き付けられた中央加熱コイル部(11a)と同じく、加熱撹拌機(M)をメーカーから出荷する際、その調理鍋(7)と周辺加熱コイル部(11b)(11c)との上下相互間隙を予じめ適度な一定寸法(例えば約8〜13mm)にセットした位置決め状態として、上記脚杆(22)の下端部を基台(13)へ溶接しておくことにより、ユーザーでの調整不能に固定維持してもさしつかえない。   Therefore, the upper and lower mutual gaps between the bottom surface of the cooking pan (7) and the first and second peripheral heating coil portions (11b) and (11c) can also be adjusted to be wide or narrow. However, like the central heating coil part (11a) wound around the bobbin (B), when the heating stirrer (M) is shipped from the manufacturer, the cooking pan (7) and the peripheral heating coil part (11b) (11c) As a positioning state in which the upper and lower mutual gaps are set to an appropriate constant dimension (for example, about 8 to 13 mm), the lower end of the leg rod (22) is welded to the base (13). It is OK to keep it fixed so that it cannot be adjusted by the user.

(24)は上記篭枠(F)の円弧受け杆(21)に悉く組み付け溶接された上端周縁リング、(25)は同じく脚杆(22)の中途高さ位置に巻き付け溶接された保形リングであり、これらも非磁性体のアルミ棒やステンレス鋼棒などから成る。尚、このような金属骨材に被覆一体化されたガラス繊維などの電気絶縁チューブや、金属骨材へ上記周辺加熱コイル部(11b)(11c)を結束した電気絶縁紐、更にその周辺加熱コイル部(11b)(11c)へ上方から貼り付け一体化されたガラス繊維や合成樹脂などの断熱材層は、図示省略してある。   (24) is an upper end peripheral ring that is assembled and welded to the circular arc receiver (21) of the frame (F), and (25) is a shape retaining ring that is also wound and welded at a mid-height position of the leg rod (22). These are also made of a non-magnetic aluminum rod or stainless steel rod. It should be noted that such an electrical insulating tube such as glass fiber coated and integrated on the metal aggregate, an electrical insulating string obtained by binding the peripheral heating coil portions (11b) and (11c) to the metal aggregate, and the peripheral heating coil. The heat insulating material layers such as glass fiber and synthetic resin which are attached to and integrated with the parts (11b) and (11c) from above are not shown.

更に、上記基台(13)はボビン(B)の真下位置にあり、上記芯軸(12)から下方に向かう磁束の遮蔽用として、その磁束を反射できる非磁性体のアルミ板などから成り、その正方形又は長方形の角隅部が上記据付け機筐(1)側の対応位置する支持ステー(9)へ、ボルト(26)とナット(27)を介して着脱自在に取り付け固定されている。図例の場合、基台(13)を昇降操作することにより、上記調理鍋(7)の底面に対する電磁誘導加熱器(H)の全体的な設置高さを調整できるようになっているのである。   Further, the base (13) is located immediately below the bobbin (B), and is made of a non-magnetic aluminum plate that can reflect the magnetic flux for shielding the magnetic flux downward from the core shaft (12). The square corners of the squares or rectangles are detachably attached and fixed to the support stays (9) corresponding to the installation machine housing (1) via bolts (26) and nuts (27). In the case of the illustrated example, the overall installation height of the electromagnetic induction heater (H) with respect to the bottom surface of the cooking pan (7) can be adjusted by raising and lowering the base (13). .

何れにしても、長い1本物の電磁誘導加熱コイル(C)における巻き径の小さい中央加熱コイル部(11a)と、同じく巻き径の順次大きい少なくとも2つの第1、2周辺加熱コイル部(11b)(11c)とは図9のように、全体の同芯渦巻き状態に振り分け配置されており、しかもその中央加熱コイル部(11a)と内側の第1周辺加熱コイル部(11b)との隣り合う相互間には、例えば約55mmのサークル状分離間隙(X1)が、又その内側の第1周辺加熱コイル部(11b)と外側の第2周辺加熱コイル部(11c)との隣り合う相互間には、例えば約50mmのサークル状分離間隙(X2)が確保されてもいる。   In any case, a central heating coil portion (11a) having a small winding diameter in a single long electromagnetic induction heating coil (C) and at least two first and second peripheral heating coil portions (11b) having a successively larger winding diameter. (11c) is distributed and arranged in a concentric spiral state as shown in FIG. 9, and the central heating coil portion (11a) and the inner first peripheral heating coil portion (11b) are adjacent to each other. In the meantime, for example, a circle-shaped separation gap (X1) of about 55 mm is formed between adjacent ones of the first peripheral heating coil portion (11b) inside and the second peripheral heating coil portion (11c) outside. For example, a circle-shaped separation gap (X2) of about 50 mm is secured.

そして、上記電磁誘導加熱コイル(C)の切り離し両端部が各々接続端子(28)を介して、励磁用高周波電源(加熱用インバーター)(29)の出力端子と接続配線されており、その高周波電源(29)から電磁誘導加熱コイル(C)へ高周波電流を供給して、上記調理鍋(7)と鎖交する磁束(Z)を発生させれば、その調理鍋(7)の底面に渦電流が流れ、ジュール熱により調理鍋(7)の発熱被膜(8)が発熱して、その底面中央区域(P1)並びに底面周辺区域(P2)(P3)を加熱することができる。   The both ends of the electromagnetic induction heating coil (C) are connected to the output terminal of the excitation high-frequency power source (heating inverter) (29) via the connection terminals (28). If a high frequency current is supplied from (29) to the electromagnetic induction heating coil (C) to generate a magnetic flux (Z) interlinking with the cooking pan (7), an eddy current is generated at the bottom of the cooking pan (7). The heat generating film (8) of the cooking pan (7) generates heat due to Joule heat, and the bottom central area (P1) and the bottom peripheral area (P2) (P3) can be heated.

茲に、電磁誘導加熱コイル(C)の励磁用高周波電源(29)は上記加熱撹拌機(M)の据付け機筐(1)に内蔵設置されており、その出力は一例として約10〜15KW、電流の周波数は同じく約20〜50KHZである。   Furthermore, the high frequency power source (29) for exciting the electromagnetic induction heating coil (C) is installed in the installation case (1) of the heating stirrer (M), and its output is about 10 to 15 kW as an example, The frequency of the current is also about 20-50 KHZ.

図13は調理鍋(7)における底面の加熱温度分布を示すグラフであり、上記高周波電源(29)の出力を予じめ調整することによって、その一定な加熱力のもとで電磁誘導加熱すれば、誘導電流の作る磁束(Z)が電磁誘導加熱コイル(C)の中央加熱コイル部(11a)を貫通する磁性体の垂直な芯軸(12)から、調理鍋(7)に吸い寄せられ浸透して、その中央加熱コイル部(11a)から発生する磁界と内側の第1周辺加熱コイル部(11b)から発生する磁界とをオーバーラップさせると共に、その内側の第1周辺加熱コイル部(11b)と外側の第2周辺加熱コイル部(11c)とから発生する磁界同士もオーバーラップさせて、各々同じ高周波電流としての加算効果により、その加熱コイル部(11a)(11b)(11c)が隣り合う同士の内外相互間隙(X1)(X2)を高温に平準化又は均平化し、調理鍋(7)の底面全体を均一な温度分布状態に加熱することができる。   FIG. 13 is a graph showing the heating temperature distribution on the bottom surface of the cooking pan (7). By adjusting the output of the high-frequency power source (29) in advance, electromagnetic induction heating is performed under the constant heating power. For example, the magnetic flux (Z) generated by the induction current is sucked into the cooking pan (7) from the vertical core shaft (12) of the magnetic material that penetrates the central heating coil portion (11a) of the electromagnetic induction heating coil (C) and penetrates. Then, the magnetic field generated from the central heating coil part (11a) and the magnetic field generated from the inner first peripheral heating coil part (11b) overlap, and the inner first peripheral heating coil part (11b). And the second peripheral heating coil portion (11c) on the outer side overlap each other, and the heating coil portions (11a), (11b), (11c) are added by the addition effect as the same high-frequency current. It can be leveled or Hitoshitaira the inner and outer cross-gap (X1) (X2) to a high temperature of the adjacent, heats the entire bottom surface of the cooking pot (7) to a uniform temperature distribution.

又、図14は先に例示した厚みが約3mmの銅板から、直径(内径)が約550mm、深さが約240mmの円錐形に作成された約45リットル(容量)の導電性調理鍋(7)へ、テストのために水を収容した上、図9、10の実施形態に係る上記電磁誘導加熱器(H)を使用して、その電磁誘導加熱中の10秒毎にサンプリングした経時的な一定時刻における加熱温度分布を示すグラフである。   Further, FIG. 14 shows a conductive cooking pot (about 45 liters (capacity)) made from a copper plate having a thickness of about 3 mm as illustrated above and made into a conical shape having a diameter (inner diameter) of about 550 mm and a depth of about 240 mm. ), After containing water for the test, using the electromagnetic induction heater (H) according to the embodiment of FIGS. 9 and 10, sampled every 10 seconds during the electromagnetic induction heating over time It is a graph which shows the heating temperature distribution in a fixed time.

この図14のグラフによれば、調理鍋(7)の測定点(イ)〜(ヘ)における加熱温度分布が、その調理鍋(7)の底面全体として約5℃のバラツキ範囲にとどまっており、先願発明の図17に示されたグラフと比較した場合、大型の調理鍋(7)における底面全体のほぼ均一な温度分布状態を得られている。   According to the graph of FIG. 14, the heating temperature distribution at the measurement points (a) to (f) of the cooking pan (7) remains within the variation range of about 5 ° C. as the entire bottom surface of the cooking pan (7). When compared with the graph shown in FIG. 17 of the prior invention, a substantially uniform temperature distribution state of the entire bottom surface of the large cooking pan (7) is obtained.

磁性体の芯軸(12)に巻き付けた中央加熱コイル部(11a)の巻き回数を減少させて、測定点(イ)(ロ)での加熱力を低く設定する一方、第1、2周辺加熱コイル部(11b)(11c)を巻き径の相違する内外一対として、一定間隙(X2)だけ離隔させることにより、測定点(ニ)(ホ)(ヘ)での加熱温度をほぼ均一に平準化していることが、上記効果の達成に寄与したものと考えられる。   While reducing the number of windings of the central heating coil part (11a) wound around the core shaft (12) of the magnetic body, the heating power at the measurement points (A) and (B) is set low, while the first and second peripheral heating By separating the coil portions (11b) and (11c) as a pair of inner and outer sides having different winding diameters by a fixed gap (X2), the heating temperature at the measurement points (d), (e) and (f) is leveled almost uniformly. This is considered to have contributed to the achievement of the above effect.

更に言えば、長い1本物の電磁誘導加熱コイル(C)が調理鍋(7)の底面を加熱する面積全体のうち、その中央加熱コイル部(11a)が受け持ち分担する加熱面積の比率を、例えば多くとも約20%、好ましくは約10〜15%に減らす一方、複数の周辺加熱コイル部(11b)(11c)が受け持ち分担する加熱面積の比率を、例えば少なくとも約80%、好ましくは約85〜90%として相対的に増すことにより、直列共振回路(LRC直列回路)の尖鋭度(Q)を緩やかに低下させて、そのRの数値を大きくなるように設定してある。   Furthermore, the ratio of the heating area shared by the central heating coil part (11a) out of the entire area where the long single electromagnetic induction heating coil (C) heats the bottom surface of the cooking pan (7), for example, While the ratio is reduced to at most about 20%, preferably about 10-15%, the ratio of the heating area shared by the plurality of peripheral heating coil portions (11b) (11c) is, for example, at least about 80%, preferably about 85- By increasing the relative value as 90%, the sharpness (Q) of the series resonant circuit (LRC series circuit) is gently lowered, and the numerical value of R is set to be large.

その結果、底面が一定不変の薄肉・フラットな炊飯器の内鍋と異なって、厚みや食材の頻繁に変る業務用の調理鍋(ボール鍋)(7)と電磁誘導加熱コイル(C)との上下相互間隙が広く又は狭くバラツキ変化しても、加熱力の急激な低下を招くことはなく、高周波電源(加熱用インバーター)(29)の出力を最大限に発揮させることができ、使用上の利便性も著しく向上する。   As a result, unlike the inner pot of a thin and flat rice cooker with a constant bottom, the cooking pot (ball pan) (7) and the electromagnetic induction heating coil (C) that change the thickness and ingredients frequently Even if the upper and lower mutual gaps vary widely or narrowly, the heating power will not be drastically reduced, and the output of the high frequency power source (heating inverter) (29) can be maximized. Convenience is also significantly improved.

しかも、上記電磁誘導加熱コイル(C)の周辺加熱コイル部(11b)(11c)は少なくとも2つとして、その互いに一定の間隙(X2)を保つ同芯渦巻き状態にあるため、上記中央加熱コイル部(11a)との全体的に均一な加熱温度分布を得やすい効果もあり、特に容量が約45リットル以上の大型調理鍋(7)に有益となる。   In addition, since there are at least two peripheral heating coil portions (11b) and (11c) of the electromagnetic induction heating coil (C) in a concentric spiral state maintaining a constant gap (X2) between them, the central heating coil portion There is also an effect that it is easy to obtain a uniform heating temperature distribution with (11a) as a whole, which is particularly useful for large cooking pots (7) having a capacity of about 45 liters or more.

そして、上記中央加熱コイル部(11a)の中心に貫通している磁性体の芯軸(12)を昇降操作し、その中央加熱コイル部(11a)による加熱力を周辺加熱コイル部(11b)(11c)によるそれと、意図的に相違する温度分布状態として強弱調整することもできる。   And the core axis | shaft (12) of the magnetic body penetrated to the center of the said center heating coil part (11a) is raised / lowered, and the heating power by the center heating coil part (11a) is sent to the peripheral heating coil part (11b) ( It is also possible to adjust the strength as a temperature distribution state intentionally different from that according to 11c).

例えば、その調理鍋(7)の底面中央区域(P1)を底面周辺区域(P2)(P3)よりも弱い加熱力に微調整して、カスタードクリームや餡などの高粘度な食材が焦げ付くことを防いだり、或いは調理鍋(7)の底面中央区域(P1)を底面周辺区域(P2)(P3)よりも逆に強い加熱力に微調整して、野菜炒めの調理中に発生する水分を、一早く蒸発させたりすることも可能である。   For example, the bottom central area (P1) of the cooking pan (7) is finely adjusted to a heating power weaker than the bottom peripheral areas (P2) (P3), and high-viscosity ingredients such as custard cream and rice cake are burnt. Preventing or finely adjusting the bottom central area (P1) of the cooking pan (7) to a stronger heating power than the bottom peripheral area (P2) (P3), the moisture generated during the cooking of the stir-fried vegetables, It is also possible to evaporate immediately.

上記加熱撹拌機(M)について更に詳述すると、(30)は平面視の正方形又は長方形をなす中空支柱用ベース盤であり、調理鍋(7)の背後に位置する関係として、上記据付け機筐(1)の天板(4)へ上方からボルト(31)によって固定一体化されている。(32)はそのベース盤(30)の上面に取り付けられた固定軸受ステー、(33)はその固定軸受ステー(32)の背後に位置しつつ、やはりベース盤(30)の上面に取り付け固定された転倒防止用ストッパーであって、中空支柱(34)が後方へ転倒しないように受け止める。   The heating stirrer (M) will be described in more detail. (30) is a base plate for a hollow column having a square or rectangular shape in a plan view. The relationship between the base plate and the cooking pot (7) is as follows. It is fixedly integrated with the top plate (4) of (1) from above by bolts (31). (32) is a fixed bearing stay attached to the upper surface of the base board (30), and (33) is located behind the fixed bearing stay (32) and is also fixed to the upper face of the base board (30). It is a stopper for preventing the fall, and the hollow column (34) is received so as not to fall backward.

茲に、中空支柱(34)はベース盤(30)の真上位置において、上記調理鍋(7)よりも背高く起立し、その下面に付属一体化された可動軸受ステー(35)が上記ベース盤(30)側の固定軸受ステー(32)へ、左右方向に沿う水平な支点軸(36)を介して起伏的な回動自在に枢着されている。   Furthermore, the hollow support (34) stands taller than the cooking pan (7) at a position directly above the base board (30), and a movable bearing stay (35) attached to and integrated with the lower surface thereof is provided on the base. It is pivotally attached to the fixed bearing stay (32) on the side of the board (30) via a horizontal fulcrum shaft (36) extending in the left-right direction so as to be undulating and rotatable.

しかも、中空支柱(34)における下面の前端部からは、上記転倒防止用ストッパー(33)と対峙する関係のネジ脚座(37)が進退自在に垂下されており、その頭部を上記ベース盤(30)の上面へ接地させることによって、中空支柱(34)の起立姿勢と延いては後述のセンター撹拌軸が調理鍋(7)の中心部へ正しく指向するように、その位置決め調整を行なえるようになっている。(38)はその調整状態の固定ナット、(θ)は上記支点軸(36)を中心とする中空支柱(34)の起伏的な回動角度であって、図例では約55度に設定されており、その中空支柱(34)を図2の鎖線で示す如く、後方へ転倒させることによって、上記天板(4)の鍋逃し入れ口筒(5)から上方へ調理鍋(7)を抜き出すことができる。   In addition, a screw leg seat (37) that is opposed to the fall-preventing stopper (33) is suspended from the front end portion of the lower surface of the hollow column (34) so as to be able to advance and retreat. By grounding to the upper surface of (30), the positioning can be adjusted so that the standing posture of the hollow support column (34) and, as a result, the center stirring shaft, which will be described later, are correctly directed to the center of the cooking pan (7). It is like that. (38) is the fixed nut in the adjusted state, and (θ) is the undulating rotation angle of the hollow column (34) about the fulcrum shaft (36), which is set to about 55 degrees in the figure. Then, as shown by the chain line in FIG. 2, the cooking column (7) is pulled out upward from the pan outlet tube (5) of the top plate (4) by turning the hollow column (34) backward. be able to.

又、(39)は上記ベース盤(30)に対する中空支柱(34)の枢着部分を包囲する保護カバーであって、後向き開口する平面視のコ字形をなし、その左右両側面には下向き開口する差込みスリット(40)の一対づつが切り欠かれている。   Further, (39) is a protective cover for enclosing the pivoted portion of the hollow column (34) with respect to the base board (30). A pair of insertion slits (40) to be cut is cut out.

そして、その差込みスリット(40)と対応位置するガイドボルト(41)の左右一対づつが、上記ベース盤(30)から横向き水平に張り出されており、これに上記差込みスリット(40)を落し込む如く、上方から保護カバー(39)を工具類の必要なく取り付けることができるようになっている。その結果、その保護カバー(39)を上方へ抜き出すことにより、上記中空支柱(34)の枢着部分を便利良く清掃作業できるのである。   A pair of left and right guide bolts (41) corresponding to the insertion slit (40) is projected horizontally from the base board (30), and the insertion slit (40) is dropped into the insertion slit (40). Thus, the protective cover (39) can be attached from above without the need for tools. As a result, the pivoting portion of the hollow column (34) can be conveniently cleaned by pulling the protective cover (39) upward.

(42)は上記中空支柱(34)の上端部から前向き一体的に張り出された水平な中空の支持アームであり、これが調理鍋(7)の真上位置まで到達する先端部には、カップリングケース(43)が図2、3のような施蓋状態に被着一体化されている。(44)はそのカップリングケース(43)の上面へ竪型に据え付け固定されたセンター撹拌軸回転用駆動モーターであって、可逆式のDCブラシレスモーターから成り、その回転速度を制御するコントローラー(制御基板)(45)が、上記中空支柱(34)に内蔵設置されている。(46)はその中空支柱(34)の背後に取り付けられた開閉カバーである。   (42) is a horizontal hollow support arm projecting forward from the upper end of the hollow support column (34), and the cup reaches the position directly above the cooking pan (7). The ring case (43) is attached and integrated in a covered state as shown in FIGS. (44) is a center agitation shaft rotation drive motor fixed in a bowl shape on the upper surface of the coupling case (43), which is composed of a reversible DC brushless motor, and a controller for controlling the rotation speed (control) Substrate) (45) is installed in the hollow column (34). (46) is an open / close cover attached behind the hollow column (34).

(47)は上記カップリングケース(43)に内蔵設置された伝動カップリング(48)を介して、駆動モーター(44)の出力軸(49)と伝動連結されることにより、そのカップリングケース(43)から調理鍋(7)の中心部に向かって垂下するセンター撹拌軸、(50)はそのセンター撹拌軸(47)のほぼ上半部を抱持する固定ベアリングケースであり、上記カップリングケース(43)の下面へ押圧フランジ(51)とボルト(52)によって固定されている。   (47) is connected to the output shaft (49) of the drive motor (44) via the transmission coupling (48) installed in the coupling case (43), so that the coupling case ( 43) a central agitation shaft that hangs down from the cooking pan (7) toward the center, and (50) a fixed bearing case that holds the substantially upper half of the central agitation shaft (47). It is fixed to the lower surface of (43) by a pressing flange (51) and a bolt (52).

(64)はその固定ベアリングケース(50)に封入された上下一対のラジアルベアリングであり、上記センター撹拌軸(47)を回転自在に支持している。(54)は同じくセンター撹拌軸(47)のスラストベアリングを示している。尚、上記伝動カップリング(48)はその詳細を図示省略してあるが、ゴム製のスパイダーとこれを挟む一対の金属製ハブとから成り、上記駆動モーター(44)の出力軸(49)からセンター撹拌軸(47)へ回転動力を伝達するようになっている。   (64) is a pair of upper and lower radial bearings enclosed in the fixed bearing case (50), and rotatably supports the center agitating shaft (47). (54) shows the thrust bearing of the center agitation shaft (47). Although the details of the transmission coupling (48) are not shown, the transmission coupling (48) is composed of a rubber spider and a pair of metal hubs sandwiching the rubber spider, from the output shaft (49) of the drive motor (44). Rotational power is transmitted to the center agitation shaft (47).

又、(55)は上記カップリングケース(43)と、固定ベアリングケース(50)の押圧フランジ(51)との上下相互間へ、そのボルト(52)を兼用して挟み付け一体化された径大な円形の固定カバーであり、これから連続的に垂下する周縁フランジ(56)の内周面には、インターナルギヤ(57)が刻設されている。   Further, (55) is a diameter integrated by sandwiching the coupling case (43) and the pressing flange (51) of the fixed bearing case (50) between the upper and lower sides using the bolt (52). An internal gear (57) is engraved on the inner peripheral surface of the peripheral flange (56) which is a large circular fixed cover and continuously hangs from this.

(58)はその固定カバー(55)の周縁フランジ(56)を下方から包囲する径大な椀状の回転ベアリングケースであり、その中心部がキー(59)やスプラインなどを介して、上記センター撹拌軸(47)と一体回転し得るように嵌合されている。(60)はその回転ベアリングケース(58)の抜け止め用ロックナットであり、センター撹拌軸(47)の下端部付近に螺合締結されている   (58) is a large-diameter bowl-shaped rotary bearing case that surrounds the peripheral flange (56) of the fixed cover (55) from below, and the center portion of the fixed cover (55) via the key (59), spline, etc. It is fitted so that it can rotate integrally with the stirring shaft (47). (60) is a lock nut for retaining the rotary bearing case (58), and is screwed and fastened near the lower end of the center agitating shaft (47).

(61)はセンター撹拌軸(47)との一定間隔(L)を保つ平行状態として、上記回転ベアリングケース(58)から調理鍋(7)の偏心部に向かって垂下する互いに同じ一対の偏心撹拌軸であり、その何れも回転ベアリングケース(58)に封入された上下一対のラジアルベアリング(62)によって、その回転ベアリングケース(58)へ回転自在に軸受けされている。   (61) is the same pair of eccentric stirring suspended from the rotary bearing case (58) toward the eccentric portion of the cooking pan (7) in a parallel state maintaining a constant interval (L) with the center stirring shaft (47). Each of the shafts is rotatably supported by the rotary bearing case (58) by a pair of upper and lower radial bearings (62) enclosed in the rotary bearing case (58).

しかも、上記固定カバー(55)側のインターナルギヤ(57)に内接して、これと噛み合い回転する径小なピニオンギヤ(63)が、その各偏心撹拌軸(61)の上端部に差し込み套嵌されており、上記センター撹拌軸(47)がその駆動モーター(44)によって図4の矢印方向(正方向)(f)へ回転駆動されると、そのセンター撹拌軸(47)と一体回転する回転ベアリングケース(58)を介して、一対の偏心撹拌軸(61)がセンター撹拌軸(47)の周囲を同一方向(f)へゆっくり公転運動すると同時に、そのピニオンギヤ(63)とインターナルギヤ(57)との噛み合い作用により、上記公転運動との逆方向(r)へすばやく自転運動し得るようになっている。   In addition, a pinion gear (63) having a small diameter, which is inscribed in the internal gear (57) on the fixed cover (55) side and meshes with the internal gear (57), is inserted into the upper end portion of each eccentric agitation shaft (61) and is fastened. When the center agitation shaft (47) is rotationally driven by the drive motor (44) in the direction of the arrow (forward direction) (f) in FIG. 4, it rotates integrally with the center agitation shaft (47). A pair of eccentric stirring shafts (61) slowly revolve around the center stirring shaft (47) in the same direction (f) via the bearing case (58), and at the same time, the pinion gear (63) and the internal gear (57 ) And can be quickly rotated in the direction (r) opposite to the above revolving motion.

その場合、上記センター撹拌軸(47)と一対の偏心撹拌軸(61)はその矢印方向(f)との逆な互いに同一方向(r)へ公転運動し得るが、その偏心撹拌軸(61)とこれに套嵌されたピニオンギヤ(63)との嵌合面には、各々ワンウエイクラッチ(64)も介挿設置されており、センター撹拌軸(47)が上記矢印方向(f)との逆方向(r)へ回転駆動された時に限っては、そのワンウエイクラッチ(64)によってピニオンギヤ(63)への伝動作用が切断され、一対の偏心撹拌軸(61)が自転運動を行なえず、停止するようになっている。   In this case, the center agitation shaft (47) and the pair of eccentric agitation shafts (61) can revolve in the same direction (r) opposite to the arrow direction (f), but the eccentric agitation shaft (61) The one-way clutch (64) is also inserted and installed on the mating surface between the pinion gear (63) and the pinion gear (63) fitted thereto, and the center agitation shaft (47) is opposite to the arrow direction (f). Only when it is rotationally driven to (r), the one-way clutch (64) cuts off the transmission to the pinion gear (63), so that the pair of eccentric stirring shafts (61) cannot rotate and stop. It has become.

上記ワンウェイクラッチ(64)の詳細は図示省略してあるが、これはハウジングとその内周面ヘ締まりばめ固定状態に圧入された咬み込み用コロ(クラツチ部)と、その両サイド部に組み込まれたラジアル荷重負荷用軸受とから成るシェル型をなし、上記コロの各個がバネにより保持されたものである。尚、(65)は上記回転ベアリングケース(58)を下方から施蓋するように、各偏心撹拌軸(61)に固定されたエンドキャップ、(66)はオイルシールである。   The details of the one-way clutch (64) are not shown, but this is incorporated in the housing and the inner peripheral surface of the biting roller (clutch portion) press-fitted into a tight-fitting state, and incorporated in both side portions thereof. Each of the above rollers is held by a spring. Incidentally, (65) is an end cap fixed to each eccentric stirring shaft (61) so as to cover the rotary bearing case (58) from below, and (66) is an oil seal.

更に、(67)は上記センター撹拌軸(47)の下端部へ差し込まれた上、貫通ピン(68)を介して抜け止めされた細長い段付き円筒状の連結スリーブ、(69)はそのピン受け入れ長孔であって、連結スリーブ(67)の上下方向に沿って開口延在されているため、その連結スリーブ(67)が自由自在に昇降作用し得る。   Further, (67) is an elongated stepped cylindrical connecting sleeve which is inserted into the lower end portion of the center agitating shaft (47) and is prevented from coming off through the through pin (68), and (69) is the pin receiving member. Since it is a long hole and extends along the vertical direction of the connecting sleeve (67), the connecting sleeve (67) can freely move up and down.

そして、上記連結スリーブ(67)内の段部より約上半位置には圧縮コイルバネ(70)が封入されており、その連結スリーブ(67)を常時押し下げる方向へ弾圧付勢している。(71)は同じく連結スリーブ(67)の下端部に倒立L字型として切り欠かれたキー溝であり、ここへ下方から各種食材用撹拌子(A)のハンガー軸(72)が、抜き差し自在に差し込み係止されることとなる。   A compression coil spring (70) is enclosed at a position approximately halfway above the step portion in the connection sleeve (67), and the connection sleeve (67) is constantly urged to press down. (71) is a key groove cut out as an inverted L shape at the lower end of the connecting sleeve (67), and the hanger shaft (72) of various food stirrers (A) can be inserted and removed from below. Will be inserted and locked.

その各種食材の撹拌子(A)は図5、6に抽出して示す如く、上記連結スリーブ(67)へ差し込み可能なハンガー軸(72)と、その下端部へ挟持金具(73)を介して取り付けられた羽根板(74)とから、正面視の全体的な錨型をなしている。   As shown in FIGS. 5 and 6, the stir bar (A) of the various ingredients is extracted from the hanger shaft (72) that can be inserted into the connecting sleeve (67), and the lower end of the stirrer (A) via a clamp (73). From the attached slats (74), it forms an overall bowl shape in front view.

即ち、その撹拌子(A)の羽根板(74)はフッソ樹脂(好ましくは商品名:テフロン(登録商標))やその他の硬質な合成樹脂から、上記調理鍋(7)の底面に対応する正面視の弓形として、且つ垂直断面の二等辺三角形(図例では正三角形)に一体成形されており、その調理鍋(7)の開口径とほぼ等しい回転直径を有している。   That is, the blade (74) of the stirrer (A) is made of fluorine resin (preferably trade name: Teflon (registered trademark)) or other hard synthetic resin, and is a front surface corresponding to the bottom surface of the cooking pan (7). It is integrally formed in an isosceles triangle (a regular triangle in the illustrated example) having a vertical cross section as a visual arcuate shape, and has a rotation diameter substantially equal to the opening diameter of the cooking pot (7).

正・逆何れの方向(f)(r)へ回転使用されても、加熱終期に粘結固形化するカスタードクリームや餡などの各種食材を、その対称な形状の掬い上げ傾斜面(74a)が掬い上げ作用し、上記材質の表面平滑性とも相俟って、その各種食材の焦げ付きや羽根板(74)に対する各種食材の付着・堆積などを予防できるようになっているのである。   Regardless of whether it is used in the forward or reverse direction (f) or (r), the crumb-shaped inclined surface (74a) is made up of various ingredients such as custard cream and strawberry that solidify at the end of heating. In combination with the surface smoothness of the above materials, the scooping action can prevent the various food materials from being burnt and the various food materials from adhering to and depositing on the blades (74).

このような羽根板(74)の中心は挟持金具(73)の下端部へ、固定ボルト(75)によって取り付け一体化されているほか、その挟持金具(73)の上端部と上記ハンガー軸(72)の下端部とが枢支ボルト(76)により、そのハンガー軸(72)に対して羽根板(74)の揺動自由に取り付けられている。   The center of such a slat (74) is integrally attached to the lower end of the sandwiching metal fitting (73) by a fixing bolt (75), and the upper end of the sandwiching metal fitting (73) and the hanger shaft (72). ) Is attached to the hanger shaft (72) by a pivot bolt (76) so that the blade plate (74) can swing freely.

そして、ハンガー軸(72)の上端部に打ち込み固定された水平なキー凸子(77)を、上記連結スリーブ(67)のキー溝(71)へ差し込み係止させることにより、その連結スリーブ(67)を介して上記センター撹拌軸(47)へ連結一本化された撹拌子(A)は、そのセンター撹拌軸(47)との一体に回転作用する。しかも、撹拌子(A)には上記圧縮コイルバネ(70)の押し下げ付勢力が働くため、その羽根板(74)のフラットな下面(74b)が上記調理鍋(7)の底面に弾圧されることとなる。   Then, a horizontal key protrusion (77) driven into and fixed to the upper end portion of the hanger shaft (72) is inserted and locked into the key groove (71) of the connection sleeve (67), whereby the connection sleeve (67 The stirrer (A) connected to the center stirring shaft (47) via the center stirring shaft (47) rotates integrally with the center stirring shaft (47). Moreover, since the pressing force of the compression coil spring (70) acts on the stirrer (A), the flat lower surface (74b) of the blade plate (74) is pressed against the bottom surface of the cooking pan (7). It becomes.

上記センター撹拌軸(47)の下端部に対する撹拌子(A)の連結一本化と同様な取付方法により、例えば図7のようなカスタードクリームのダマ解消用として役立つホイッパー(E)などの別な撹拌子を、上記偏心撹拌軸(61)の下端部へ抜き差し自在に差し込み使用することもできる。   For example, another whipper (E) such as a whipper (E) useful for eliminating custard cream lumps as shown in FIG. 7 can be obtained by the same attachment method as that for connecting the stirring bar (A) to the lower end of the center stirring shaft (47). The stirrer can be inserted into the lower end of the eccentric stirring shaft (61) so as to be freely inserted and used.

(78)は上記センター撹拌軸回転用駆動モーター(44)のコントローラー(45)や電磁誘導加熱コイル(C)の励磁用高周波電源(29)と接続配線された操作パネルであって、上記加熱撹拌機(M)の据付け機筐(1)に設置されており、上記高周波電源(29)の出力調整ボリューム(79)や上記駆動モーター(44)の正・逆回転切換スイッチなどを具備しいてる。(80)はブレーカー付きの電源スイッチである。   (78) is an operation panel connected to the controller (45) of the drive motor (44) for rotating the center agitation shaft and the excitation high frequency power source (29) of the electromagnetic induction heating coil (C). It is installed in an installation machine casing (1) of the machine (M), and includes an output adjustment volume (79) of the high frequency power supply (29), a forward / reverse rotation changeover switch of the drive motor (44), and the like. (80) is a power switch with a breaker.

尚、図示の実施形態では各種食材の加熱撹拌機(M)に適用した電磁誘導加熱器(H)を説明したが、本発明の電磁誘導加熱器(H)は各種食材を撹拌しない業務用の煮炊き機や炒め機、その他の加熱調理機にも適用実施することができる。   In addition, although electromagnetic induction heater (H) applied to the heating stirrer (M) of various foodstuffs was demonstrated in embodiment of illustration, the electromagnetic induction heater (H) of this invention is a business use which does not stir various foodstuffs. It can also be applied to boiled-cookers, stir-friers, and other cookers.

本発明に係る各種食材の煮炊き調理用加熱撹拌機を示す正面図である。It is a front view which shows the heating stirrer for the boiled cooking of the various ingredients which concern on this invention. 図2の側面図である。FIG. 3 is a side view of FIG. 2. 図2の部分拡大断面図である。FIG. 3 is a partially enlarged sectional view of FIG. 2. 図3の4−4線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 撹拌子を抽出して示す正面図である。It is a front view which extracts and shows a stirring element. 図5の6−6線拡大断面図である。FIG. 6 is an enlarged sectional view taken along line 6-6 in FIG. 別な撹拌子を抽出して示す正面図である。It is a front view which extracts and shows another stirring bar. 加熱撹拌機の制御回路図である。It is a control circuit diagram of a heating stirrer. 篭枠に電磁誘導加熱コイルを取り付けた状態の平面図である。It is a top view of the state where the electromagnetic induction heating coil was attached to the eaves frame. 調理鍋を取り付けた状態として示す図9の10−10線断面図である。FIG. 10 is a cross-sectional view taken along line 10-10 of FIG. 9 shown as a state where a cooking pan is attached. 図10の変形実施形態を示す断面図である。It is sectional drawing which shows the deformation | transformation embodiment of FIG. 芯軸から調理鍋に浸透する磁束を示す作用説明図である。It is effect | action explanatory drawing which shows the magnetic flux which osmose | permeates a cooking pot from a core axis | shaft. 調理鍋の底面に対する加熱温度分布を示すグラフである。It is a graph which shows the heating temperature distribution with respect to the bottom face of a cooking pan. 図10の電磁誘導加熱器による調理鍋の加熱温度分布を示すグラフである。It is a graph which shows the heating temperature distribution of the cooking pot by the electromagnetic induction heater of FIG.

符号の説明Explanation of symbols

(1)・据付け機筐
(4)・天板
(6)・鍋受け止めリング
(7)・調理鍋
(8)・発熱被膜
(9)・支持ステー
(11a)・中央加熱コイル部
(11b)・第1周辺加熱コイル部
(11c)・第2周辺加熱コイル部
(12)・芯軸
(13)・基台
(16)・支持ボルト
(17)(19)(23)・固定ナット
(18)・センターボルト
(20)・調整板
(21)・円弧受け杆
(22)・脚杆
(29)・高周波電源
(34)・中空支柱
(44)・駆動モーター
(47)・センター撹拌軸
(48)・伝動カップリング
(50)・固定ベアリングケース
(55)・固定カバー
(57)・インターナルギヤ
(58)・固定ベアリングケース
(61)・偏心撹拌軸
(63)・ピニオンギヤ
(64)・ワンウェイクラッチ
(67)・連結スリーブ
(72)・ハンガー軸
(73)・挟持金具
(74)・羽根板
(76)・枢支ボルト
(78)・操作パネル
(79)・出力調整ボリューム
(80)・電源スイッチ
(A)・撹拌子
(B)・ボビン
(C)・電磁誘導加熱コイル
(F)・篭枠
(H)・電磁誘導加熱器
(M)・加熱撹拌機
(1) ・ Mounting machine housing (4) ・ Top plate (6) ・ Pot receiving ring (7) ・ Cooking pan (8) ・ Heat coating (9) ・ Support stay (11a) ・ Central heating coil (11b) ・1st peripheral heating coil part (11c), 2nd peripheral heating coil part (12), core shaft (13), base (16), support bolt (17) (19) (23), fixing nut (18), Center bolt (20) ・ Adjustment plate (21) ・ Circle receiving rod (22) ・ Leg rod (29) ・ High frequency power supply (34) ・ Hollow support (44) ・ Drive motor (47) ・ Center stirring shaft (48) ・Transmission coupling (50), Fixed bearing case (55), Fixed cover (57), Internal gear (58), Fixed bearing case (61), Eccentric stirring shaft (63), Pinion gear (64), One-way clutch (67 ) Connecting sleeve (72), hanger shaft (73), clamping bracket (74), blade plate (76), pivot bolt (78), operation panel (79), output adjustment volume (80), power switch (A), Stirrer (B), bobbin (C), electromagnetic induction heating coil (F), eaves frame (H), electromagnetic induction heater (M), heating stirrer

Claims (3)

1本物の電磁誘導加熱コイル(C)における巻き径の小さい中央加熱コイル部(11a)へ、磁性体の芯軸(12)を垂直に貫通させて、その中央加熱コイル部(11a)により円錐形又は半球形導電性調理鍋(7)の底面中央部を加熱する業務用の電磁誘導加熱器において、
巻き径が相違し且つ互いに一定間隙(X2)だけ離隔した少なくとも2つの周辺加熱コイル部(11b)(11c)により、上記調理鍋(7)の底面周辺部をその底面中央部との全体的なほぼ均一に加熱することを特徴とする業務用の電磁誘導加熱器。
A magnetic core shaft (12) is vertically passed through a central heating coil portion (11a) having a small winding diameter in a single electromagnetic induction heating coil (C), and a conical shape is formed by the central heating coil portion (11a). Or in a business electromagnetic induction heater that heats the center of the bottom of the hemispherical conductive cooking pan (7),
At least two peripheral heating coil portions (11b) and (11c) having different winding diameters and separated from each other by a fixed gap (X2), the bottom peripheral portion of the cooking pan (7) is totally connected to the bottom central portion. An electromagnetic induction heater for business use, characterized by heating almost uniformly.
中央加熱コイル部(11a)が巻き付けられたボビン(B)と、少なくとも2つの周辺加熱コイル部(11b)(11c)が同芯渦巻き状態に固定設置された篭枠(F)とを、調理鍋(7)の底面に向かって一挙同時に又は各別に昇降調整できるように定めたことを特徴とする請求項1記載の業務用の電磁誘導加熱器。   A bobbin (B) around which the central heating coil part (11a) is wound, and a bowl frame (F) in which at least two peripheral heating coil parts (11b) and (11c) are fixedly installed in a concentric spiral state, 2. The electromagnetic induction heater for business use according to claim 1, wherein the electromagnetic induction heater for business use is defined so as to be adjusted up and down at once or separately toward the bottom surface of (7). 周辺加熱コイル部(11b)(11c)の巻き回数を、その巻き径が大きい外側へ行く程徐々に減少させたことを特徴とする請求項1記載の業務用の電磁誘導加熱器。   The electromagnetic induction heater for business use according to claim 1, characterized in that the number of turns of the peripheral heating coil portions (11b) (11c) is gradually decreased as the winding diameter increases toward the outside.
JP2008207094A 2008-08-11 2008-08-11 Commercial electromagnetic induction heater Active JP4842304B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012024507A (en) * 2010-07-28 2012-02-09 Nakai:Kk Syrup dipper for solid food material
CN103720371A (en) * 2013-12-20 2014-04-16 吴江市俊成精密机械有限公司 Air frying pan
WO2023134347A1 (en) * 2022-01-17 2023-07-20 深圳市不停科技有限公司 Cooking apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104367177A (en) * 2014-11-28 2015-02-25 苏州市吴中区大陆电子设备厂 Spherical electric cooker

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JPH09322849A (en) * 1996-06-05 1997-12-16 Zojirushi Corp Induction heating type rice cooker
JP2003332032A (en) * 2002-05-14 2003-11-21 Shigeru Watanabe Electromagnetic cooker
JP2004311382A (en) * 2003-04-07 2004-11-04 Toyoji Mukoyama Variable type high frequency induction heating coil
JP2005332724A (en) * 2004-05-21 2005-12-02 Nakai:Kk Electromagnetic induction heating device and its heating object
JP2009252512A (en) * 2008-04-04 2009-10-29 Nakai:Kk Electromagnetic induction heater for heating agitator of various food materials

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09322849A (en) * 1996-06-05 1997-12-16 Zojirushi Corp Induction heating type rice cooker
JP2003332032A (en) * 2002-05-14 2003-11-21 Shigeru Watanabe Electromagnetic cooker
JP2004311382A (en) * 2003-04-07 2004-11-04 Toyoji Mukoyama Variable type high frequency induction heating coil
JP2005332724A (en) * 2004-05-21 2005-12-02 Nakai:Kk Electromagnetic induction heating device and its heating object
JP2009252512A (en) * 2008-04-04 2009-10-29 Nakai:Kk Electromagnetic induction heater for heating agitator of various food materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012024507A (en) * 2010-07-28 2012-02-09 Nakai:Kk Syrup dipper for solid food material
CN103720371A (en) * 2013-12-20 2014-04-16 吴江市俊成精密机械有限公司 Air frying pan
WO2023134347A1 (en) * 2022-01-17 2023-07-20 深圳市不停科技有限公司 Cooking apparatus

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