JP2011019689A - Electromagnetic induction heater - Google Patents

Electromagnetic induction heater Download PDF

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JP2011019689A
JP2011019689A JP2009166665A JP2009166665A JP2011019689A JP 2011019689 A JP2011019689 A JP 2011019689A JP 2009166665 A JP2009166665 A JP 2009166665A JP 2009166665 A JP2009166665 A JP 2009166665A JP 2011019689 A JP2011019689 A JP 2011019689A
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electromagnetic induction
heating coil
tray
iron plate
food
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JP4976464B2 (en
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Setsu Nakai
節 中井
Yoshinori Nakagawa
義則 中川
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Nakai KK
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Nakai KK
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Abstract

<P>PROBLEM TO BE SOLVED: To evenly heat an entire bottom surface of a steel plate for cooking various foods or tray for baking various foods by electromagnetic induction. <P>SOLUTION: The electromagnetic induction heater includes: a bobbin (B) around which a center heating coil (14a) with a small radius of a single electromagnetic induction heating coil (14) is wound; similarly, a support foot (F) for sequentially supporting first and second peripheral heating coils (14b)(14c) with large radii; and a core (15) made of a magnetic body vertically penetrated in the center of the bobbin (B). The core (15) is set so as to allow raising or lowering of the core with respect to the bottom surface of the steel plate for cooking various foods or tray (6) for baking various foods, and a fixed gap (X2) secured between two peripheral heating coils (14b)(14c) adjacent to each other is adjustably set to be widened or narrowed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明はお好み焼きや焼きそば、ギョーザなどの各種食材を調理する鉄板(ホットプレート)のほかに、クレープやワッフル、クッキー、煎餅、たい焼き、その他の各種食品(焼き菓子)を焼成するトレー用としてもふさわしく有効な電磁誘導加熱器に関する。   In addition to iron plates (hot plates) for cooking various ingredients such as okonomiyaki, fried noodles and gyoza, the present invention can be used for trays for baking crepes, waffles, cookies, rice crackers, taiyaki, and other various foods (baked goods). It relates to a suitably effective electromagnetic induction heater.

従来のクレープを焼き菓子の一例に挙げて言えば、これは特許文献1に開示のようなクレープ菓子製造装置を用いて製造されており、その特許文献1にはパレット(5)の加熱源が記載されていないが、ターンテーブル(4)の自動間歇的な回転停止中において、その複数のパレット(5)をこれらと対応位置するガスバーナーにより、下方から加熱している実際である。   Speaking of a conventional crepe as an example of baked confectionery, it is manufactured using a crepe confectionery manufacturing apparatus as disclosed in Patent Document 1, and in Patent Document 1, a heating source for the pallet (5) is provided. Although not described, during the automatic intermittent rotation stop of the turntable (4), the plurality of pallets (5) are actually heated from below by the gas burners corresponding to these.

特開2001−8606号公報Japanese Patent Laid-Open No. 2001-8606

ところが、上記パレット(5)の複数をガスにより加熱する手段では、作業者の受ける温度環境や熱効率が非常に悪く、それにもましてガスの炎が排気流などの影響を受けて揺れ動くため、そのパレット(5)の底面全体を均一な温度に加熱することができず、焼き色にもムラを生じ、常時安定な品質のクレープ(焼き菓子)を得られない問題がある。   However, in the means for heating a plurality of the pallets (5) with gas, the temperature environment and thermal efficiency received by the worker are very poor, and the gas flame is swayed by the influence of the exhaust flow. There is a problem that the entire bottom surface of (5) cannot be heated to a uniform temperature, the baked color is uneven, and a stable crepe (baked confectionery) cannot always be obtained.

本発明はこのような課題の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では食材調理用鉄板又は食品焼成用トレーを加熱するための電磁誘導加熱器であって、   The present invention aims to improve such a problem, and in order to achieve the object, in claim 1, an electromagnetic induction heater for heating an iron plate for cooking food or a tray for baking food,

1本物の電磁誘導加熱コイルにおける巻き径が小さい中央加熱コイル部を巻き付けたボビンと、同じく加熱コイルの巻き径が順次大きい少なくとも2つの第1、2周辺加熱コイル部を受け持った支持脚と、上記中央加熱コイル部の中心へ垂直に貫通された磁性体の芯棒とから成り、   A bobbin around which a central heating coil portion having a small winding diameter in a single electromagnetic induction heating coil is wound, and a support leg for handling at least two first and second peripheral heating coil portions in which the winding diameter of the heating coil is successively increased; It consists of a magnetic core rod that penetrates perpendicularly to the center of the central heating coil part,

その芯棒を上記鉄板又はトレーの底面に向かって昇降調整できるように定めると共に、上記電磁誘導加熱コイルにおける周辺加熱コイル部同士の隣り合う相互間を一定間隙だけ離隔させることにより、上記鉄板又はトレーにおける底面中央区域の加熱温度分布と底面周辺区域のそれとを均一に保つことを特徴とする。   The core plate is determined so that it can be adjusted up and down toward the bottom surface of the iron plate or tray, and the adjacent heating coil portions of the electromagnetic induction heating coil are separated from each other by a fixed gap, thereby making the iron plate or tray The heating temperature distribution in the bottom center area and the bottom temperature area of the bottom area are kept uniform.

又、請求項2ではボビンと支持脚とを食材調理用鉄板又は食品焼成用トレーの底面に向かって、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。   According to a second aspect of the present invention, the bobbin and the support leg are defined so that they can be adjusted up and down at the same time or separately toward the bottom surface of the food cooking iron plate or the food baking tray.

請求項3では1本物の電磁誘導加熱コイルにおける周辺加熱コイル部同士の隣り合う一定間隙へ、食材調理用鉄板又は食品焼成用トレーの底面と接触し得る接触式温度センサーを昇降作動自在に介挿設置して、   According to a third aspect of the present invention, a contact-type temperature sensor that can come into contact with the bottom surface of the food cooking iron plate or the food baking tray is inserted into a certain gap between adjacent heating coil portions of a single electromagnetic induction heating coil. Install

その温度センサーが上記鉄板又はトレーの現在温度を検知した出力信号により、上記電磁誘導加熱コイル励磁用高周波電源の加熱力を強弱調整するように定めたことを特徴とする。   The temperature sensor is determined to adjust the heating power of the high frequency power source for exciting the electromagnetic induction heating coil based on an output signal obtained by detecting the current temperature of the iron plate or tray.

更に、請求項4では自動間歇的に回転駆動される円形なターンテーブルの周辺部へ、複数の食材調理用鉄板又は食品焼成用トレーを全体的な放射対称分布型として、しかも上方から係脱自在に差し込み係止させると共に、   Furthermore, in claim 4, a plurality of food cooking iron plates or food baking trays are formed as an overall radial symmetrical distribution type around the periphery of a circular turntable that is automatically and intermittently driven, and can be engaged and disengaged from above. And lock it into

その鉄板又はトレーが一旦停止される位置へ、下方から渦巻き状態に臨ませた1本物の電磁誘導加熱コイルにより、上記鉄板又はトレーの底面を停止中だけ加熱するように定めたことを特徴とする。   It is determined that the bottom surface of the iron plate or tray is heated only when it is stopped by a single electromagnetic induction heating coil that is swirled from below to a position where the iron plate or tray is temporarily stopped. .

請求項1の上記構成によれば、食材調理用鉄板(ホットプレート)又は食品焼成用トレーにおける材質や厚みなどの変化に応じて、磁性体の芯棒をその鉄板又はトレーの底面に向かい昇降調整したり、又1本物の電磁誘導加熱コイルにおける巻き径が比較的大きい周辺加熱コイル部同士の隣り合う一定間隙を広く又は狭く調整したりすることにより、上記鉄板又はトレーの底面全体を均一な温度分布状態に電磁誘導加熱することができ、このような効果は請求項2の構成を採用すれば、ますます向上する。   According to the above configuration of claim 1, the magnetic core is moved up and down toward the bottom of the iron plate or tray in accordance with changes in the material or thickness of the food cooking iron plate (hot plate) or food baking tray. Or by adjusting the adjacent constant gap between adjacent heating coil parts having a relatively large winding diameter in a single electromagnetic induction heating coil to a uniform or uniform temperature on the entire bottom surface of the iron plate or tray. Electromagnetic induction heating can be performed in the distributed state, and such an effect is further improved by adopting the configuration of claim 2.

特に、請求項3の構成を採用するならば、上記周辺加熱コイル部同士の隣り合う一定間隙を活用して、その間隙へ上記鉄板又はトレーの接触式温度センサーを介挿設置することができ、しかもその温度センサーを鉄板又はトレーから離すように下降させれば、その鉄板又はトレーの回転運動や清掃作業も可能になる。   In particular, if the configuration of claim 3 is adopted, it is possible to interpose and install the contact temperature sensor of the iron plate or the tray in the gap by utilizing the adjacent gap between the peripheral heating coil portions. Moreover, if the temperature sensor is lowered so as to be separated from the iron plate or tray, the rotating motion or cleaning work of the iron plate or tray becomes possible.

更に、請求項4の構成を採用するならば、クレープやワッフルなどの各種食品を熱効率良く焼成することができ、その大量処理や作業環境の改良などに役立つ。   Furthermore, if the structure of Claim 4 is employ | adopted, various foodstuffs, such as a crepe and a waffle, can be baked with heat efficiency, and it is useful for the mass processing, improvement of a working environment, etc.

本発明に係る電磁誘導加熱器を取り付けたクレープ焼成機の平面図である。It is a top view of the crepe baking machine which attached the electromagnetic induction heater which concerns on this invention. 図1の正面図である。It is a front view of FIG. 図1の3−3線断面図である。FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. 図1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. 図4の斜面図である。FIG. 5 is a slope view of FIG. 4. 図5の平面図である。FIG. 6 is a plan view of FIG. 5. 電磁誘導加熱器の制御回路図である。It is a control circuit diagram of an electromagnetic induction heater. 食品焼成用トレーの底面へ温度センサーを押し付けた状態の断面図である。It is sectional drawing of the state which pressed the temperature sensor to the bottom face of the tray for food baking. 本発明の変形実施形態を示す図1に対応する平面図である。It is a top view corresponding to FIG. 1 which shows the deformation | transformation embodiment of this invention. 図9の正面図である。FIG. 10 is a front view of FIG. 9. 図10の側面図である。It is a side view of FIG. 図9の12−12線拡大断面図である。FIG. 12 is an enlarged sectional view taken along line 12-12 of FIG. 図12の電磁誘導加熱コイルを抽出して示す平面図である。It is a top view which extracts and shows the electromagnetic induction heating coil of FIG. トレー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 tray. 図4の電磁誘導加熱器によるトレー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 tray by the electromagnetic induction heater of FIG.

以下、図示の実施形態に基いて本発明の具体的構成を詳述すると、図1〜8は焼き菓子の一例であるクレープの焼成機(M)と、これに対する電磁誘導加熱器(H)の取り付け使用状態を示しており、(1)はクレープ焼成機(M)の据付け機筐であって、一定な大きさの円筒形又は角筒形をなし、その下端部にねじ込まれた複数の接地脚座(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のキャスター(3)を軸支しても良い。   Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated embodiment. FIGS. 1 to 8 show a crepe baking machine (M) which is an example of baked confectionery and an electromagnetic induction heater (H) corresponding thereto. (1) is an installation machine housing of the crepe baking machine (M), which has a fixed size cylindrical shape or rectangular tube shape, and a plurality of grounds screwed into its lower end. The installation height can be adjusted by the leg seat (2). Instead of or in addition to this, a caster (3) with a brake capable of changing the installation location may be pivotally supported.

このような据付け機筐(1)の水平な上面は作業しやすい設置高さにある円形のターンテーブル(4)として、その周辺部に全体的な放射対称分布型として開口する複数(図例では合計7個)のトレー受け入れ口(5)を備えており、その円形の各トレー受け入れ口(5)には食品(クレープ)焼成用トレー(6)が上方から係脱自在に差し込み係止されている。   The horizontal upper surface of such an installation machine casing (1) is a circular turntable (4) at an installation height that is easy to work with, and a plurality of (in the example shown in the figure) open as an overall radial symmetrical distribution type at the periphery. A total of seven tray receiving openings (5) are provided, and food trays (crepes) and baking trays (6) are inserted into the circular tray receiving openings (5) so as to be freely detachable from above. Yes.

茲に、複数(図例では合計7個)のトレー(6)は非磁性体の軽量なアルミ材から、互いに同じ大きさの円形受皿状に造形されており、しかもそのフラットな底面には鉄粉などの発熱被膜(7)が各々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、上記トレー(6)の材質としてフェライト系ステンレス鋼や胴、鉄とアルミとのクラッド材などを採用しても良く、磁性体の鉄も勿論採用することができる。   In addition, the trays (6) in total (seven in the example shown in the figure) are made of non-magnetic lightweight aluminum material and are shaped into circular trays of the same size, and the flat bottom surface is made of iron. Conductivity is given by each thermal spraying of heat-generating films (7) such as powder. However, as long as it has the conductivity, ferritic stainless steel, a trunk, a clad material of iron and aluminum, etc. may be adopted as the material of the tray (6), and of course, magnetic iron may also be adopted. it can.

(8)は上記クレープ焼成機(M)の据付け機筐(1)を形作る胴壁面(9)の適当な中途高さ位置へ、その内側から全体的な放射対称分布型に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、その支持ステー(8)の水平片には円形のモーター受け台(10)が着脱自在に取り付け固定されている。   (8) is a plurality of a plurality of radial symmetric distribution types welded from the inside to an appropriate mid-height position of the body wall surface (9) forming the installation machine casing (1) of the crepe baking machine (M). The support stay is made of an angle-shaped steel material, and a circular motor cradle (10) is detachably attached and fixed to a horizontal piece of the support stay (8).

(11)はその水平なモーター受け台(10)の円形中心部へ搭載状態に取り付け固定されたギヤードモーターであって、その垂直な出力軸(12)の上端部をなす径大なテーブル受けフランジ(13)が、上記ターンテーブル(4)の円形中心部へ裏当て状態に取り付け一体化されており、そのターンテーブル(4)をギヤードモーター(11)によって間歇的に回転駆動し得るようになっている。図1の符号(R)はそのターンテーブル(4)の回転方向、(S1)(S2)(S3)(S4)(S5)(S6)(S7)は上記トレー(6)の第1〜7停止位置を示している。   (11) is a geared motor which is mounted and fixed to the circular central portion of the horizontal motor cradle (10) in a mounted state, and has a large table receiving flange which forms the upper end of the vertical output shaft (12). (13) is attached to and integrated with the circular center of the turntable (4) in a backing state, and the turntable (4) can be intermittently rotated by the geared motor (11). ing. 1 is the rotation direction of the turntable (4), and (S1) (S2) (S3) (S4) (S5) (S6) (S7) are the first to seventh of the tray (6). The stop position is shown.

電磁誘導加熱器(H)は複数(図例では合計6個)として、その導電性トレー(6)の自動間歇的な第1〜6停止位置(S1)〜(S6)に点在分布されており、その停止状態にあるトレー(6)の底面を電磁誘導加熱する。但し、トレー(6)の第7停止位置(S7)だけは焼成し終った食品(クレープ)をトレー(6)から取り出す位置として、ここにトレー(6)の電磁誘導加熱器(H)は設置されていない。   A plurality of electromagnetic induction heaters (H) (six in the example shown in the figure) are distributed in the automatic intermittent first to sixth stop positions (S1) to (S6) of the conductive tray (6). The bottom surface of the tray (6) in the stopped state is heated by electromagnetic induction. However, only the seventh stop position (S7) of the tray (6) is a position where the baked food (crepe) is taken out from the tray (6), and the electromagnetic induction heater (H) of the tray (6) is installed here. It has not been.

即ち、電磁誘導加熱器(H)の複数は悉く同じ図3〜6に示すようなユニット体として、各導電性トレー(6)の大きさに対応する長い1本物の電磁誘導加熱コイル(14)と、その電磁誘導加熱コイル(14)における巻き径が小さい中央加熱コイル部(14a)を巻き付けるボビン(B)と、同じく電磁誘導加熱コイル(14)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(14b)(14c)を受け持つ支持脚(F)と、上記ボビン(B)の中心を垂直に貫通する磁性体の芯棒(15)とから成り、これらが共通のベース板(16)に取り付けられたものである。   That is, a plurality of electromagnetic induction heaters (H) are formed as a unit body as shown in FIGS. 3 to 6, and a single long electromagnetic induction heating coil (14) corresponding to the size of each conductive tray (6). A bobbin (B) around which the central heating coil portion (14a) having a small winding diameter in the electromagnetic induction heating coil (14) is wound, and at least two first, the winding diameter of the electromagnetic induction heating coil (14) being successively larger, 2 It consists of a supporting leg (F) responsible for the peripheral heating coil portions (14b) and (14c) and a magnetic core rod (15) vertically passing through the center of the bobbin (B), and these are the common base plate It is attached to (16).

そして、上記電磁誘導加熱コイル(14)の中央加熱コイル部(14a)が磁性体の芯棒(15)による磁束の集中的な浸透作用とも相俟って、各トレー(6)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(14)の第1、2周辺加熱コイル部(14b)(14c)が各トレー(6)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(14)によって各トレー(6)の底面全体を加熱するようになっている。   The central heating coil portion (14a) of the electromagnetic induction heating coil (14) is combined with the concentrated penetration of magnetic flux by the magnetic core rod (15), and the bottom central region of each tray (6). In addition to sharing the heating of (P1), the first and second peripheral heating coil portions (14b) and (14c) of the electromagnetic induction heating coil (14) are also provided in the bottom peripheral areas (P2) and (P3) of each tray (6). The heating is shared, and the entire bottom surface of each tray (6) is heated by the single electromagnetic induction heating coil (14).

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(17)(18)を備えた一定な背丈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(14)の中央加熱コイル部(14a)が巻き径(d)の小さく巻き付け一体化されている。   First, the bobbin (B) is made from a heat-resistant synthetic resin or an electrical insulating material such as bakelite into a cylindrical shape having a certain height with a pair of upper and lower horizontal projecting flanges (17) and (18). A central heating coil portion (14a) of the electromagnetic induction heating coil (14) is wound around and integrated with the body surface 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5mm)と長さの銅線(リッツ線)から成る電磁誘導加熱コイル(14)のうち、その中央加熱コイル部(14a)を上記ボビン(B)の胴面へ、連続する内外二重の積層螺旋状態に14回巻き付けることにより、その中央加熱コイル部(14a)の背丈とボビン(B)のそれを低く扁平化しているが、その背高くなる一重に巻き付けてもさしつかえない。   In that case, in the electromagnetic induction heater (H) shown in the figure, the central heating coil of the electromagnetic induction heating coil (14) made of copper wire (Litz wire) having a constant thickness (diameter of about 5 mm) and length. By winding the part (14a) around the body surface of the bobbin (B) 14 times in a continuous inner and outer double spiral state, the height of the central heating coil part (14a) and that of the bobbin (B) are lowered. Although it is flattened, it can be wound around the tall single layer.

上記ボビン(B)の上側張り出しフランジ(17)は中央加熱コイル部(14a)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(18)が、全体的な放射対称分布型に垂立する非磁性体から成る複数の支持ボルト(19)とその固定ナット(20)を介して、上記ベース板(16)へ昇降操作自在に取り付けられている。そのため、上記トレー(6)の底面とその中央加熱コイル部(14a)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 protruding flange (17) of the bobbin (B) has substantially the same outer diameter as the winding diameter (d) of the central heating coil portion (14a), and the lower protruding flange (18) having a larger diameter than this. Is attached to the base plate (16) so as to be movable up and down via a plurality of support bolts (19) made of a non-magnetic material that suspends in an overall radial symmetrical distribution type and its fixing nut (20). Yes. Therefore, the upper and lower mutual gap between the bottom surface of the tray (6) and the central heating coil portion (14a) can be adjusted to be wide or narrow.

次に、磁性体の芯棒(15)は一定な太さを有する角柱形又は円柱形のフェライトから成り、その背丈(身長)が上記中央加熱コイル部(14a)の背丈よりも高い(長い)一定寸法として、そのボビン(B)の中心を貫通する垂立状態にある。そのため、電磁誘導加熱コイル(14)の中央加熱コイル部(14a)を流れる高周波電流によって起生される磁束が、上記芯棒(15)からトレー(6)に浸透して、そのトレー(6)の底面中央区域(P1)を加熱することができる。   Next, the magnetic core rod (15) is made of prismatic or columnar ferrite having a constant thickness, and its height (height) is higher (longer) than the height of the central heating coil section (14a). As a fixed dimension, it is in a suspended state penetrating the center of the bobbin (B). Therefore, the magnetic flux generated by the high frequency current flowing through the central heating coil portion (14a) of the electromagnetic induction heating coil (14) penetrates from the core rod (15) into the tray (6), and the tray (6). The bottom central area (P1) of the can be heated.

しかも、その芯棒(15)の下端部を受け持つ1本のセンターボルト(21)が、やはり上記ベース板(16)へ昇降操作自在に取り付けられており、トレー(6)の底面と芯棒(15)の頂面との上下相互間隙(s)を、広く又は狭く調整することができ、延いてはトレー(6)における底面中央区域(P1)の加熱温度分布を、その底面周辺区域(P2)(P3)の加熱温度分布と等しくなるように調整し得るようになっている。(22)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(21)と同じくアルミやステンレス鋼などの非磁性体から成る。   In addition, one center bolt (21) that handles the lower end of the core rod (15) is also attached to the base plate (16) so as to be movable up and down, and the bottom surface of the tray (6) and the core rod ( 15) The upper and lower mutual gap (s) with the top surface can be adjusted to be wide or narrow, and the heating temperature distribution in the bottom central region (P1) of the tray (6) can be adjusted to the bottom peripheral region (P2). ) (P3) can be adjusted to be equal to the heating temperature distribution. (22) is a fixed nut in its adjusted state, and is made of a non-magnetic material such as aluminum or stainless steel, like the center bolt (21).

又、上記支持脚(F)は一定の太さ(例えば直径が約5〜8mm)を有し且つ全体的な放射対称分布型に配列された複数(図例では合計8本)のアルミ棒やステンレス鋼棒、その他の非磁性体の金属骨材から、図3〜6のような各トレー(6)の底面周辺区域(P2)(P3)と対応する大きさになるほぼ倒立L字形に折り曲げ立体化されたものである。   The support legs (F) have a certain thickness (for example, a diameter of about 5 to 8 mm) and are arranged in an overall radial symmetrical distribution type (a total of eight in the illustrated example) of aluminum rods, Bend from a stainless steel rod or other non-magnetic metal aggregate into an inverted L-shape that is sized to correspond to the bottom peripheral area (P2) (P3) of each tray (6) as shown in FIGS. Three-dimensional.

そして、その複数の金属骨材から成る支持脚(F)の水平な腕杆(23)へ、上方から長い1本物の電磁誘導加熱コイル(14)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(14b)(14c)が、各々一重の渦巻き状態に取り付け固定されている。(24)はその腕杆(23)の張り出し先端部に悉く組み付け溶接された円形の縁取りリングであり、これも非磁性体のアルミ棒などから成る。   Then, to the horizontal armband (23) of the support legs (F) made of the plurality of metal aggregates, at least two first, the winding diameters of which are gradually increased from the top in the single electromagnetic induction heating coil (14), Two peripheral heating coil sections (14b) and (14c) are each fixed and attached in a single spiral state. (24) is a circular rim ring that is assembled and welded to the overhanging tip of the armband (23), which also comprises a non-magnetic aluminum rod or the like.

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(14b)を、3回だけ渦巻き状態に巻回する一方、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(14c)を、9回渦巻き状態に巻回しているが、第1、2周辺加熱コイル部(14b)(14c)の巻き回数やその相対的な比率については、上記トレー(6)の大きさや厚みなどを考慮して、適当に設定することができる。   In the case of the illustrated example, the inner first peripheral heating coil portion (14b) having a small winding diameter is wound in a spiral state only three times, while the outer second peripheral heating coil portion (the outer winding diameter is larger than this) 14c) is wound 9 times in a spiral state. The number of turns and the relative ratio of the first and second peripheral heating coil portions (14b) and (14c) are the size and thickness of the tray (6). For example, it can be set appropriately.

他方、同じく複数の金属骨材から成る支持脚(F)の垂直な脚杆(25)は、上記電磁誘導加熱コイル(14)の中央加熱コイル部(14a)とボビン(B)を包囲する平行状態にあり、その各脚杆(25)の下端ネジ杆部(25a)が非磁性体の固定ナット(26)によって、上記ベース板(16)へ昇降操作自在に締結されている。そのため、上記トレー(6)の底面とその第1、2周辺加熱コイル部(14b)(14c)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。   On the other hand, the vertical leg rod (25) of the support leg (F), also made of a plurality of metal aggregates, is parallel to surround the central heating coil portion (14a) of the electromagnetic induction heating coil (14) and the bobbin (B). In this state, the lower end screw flange portion (25a) of each leg rod (25) is fastened to the base plate (16) by a non-magnetic fixing nut (26) so as to be movable up and down. Therefore, the upper and lower mutual gaps between the bottom surface of the tray (6) and the first and second peripheral heating coil portions (14b) and (14c) can be adjusted to be wide or narrow.

尚、上記支持脚(F)を形作る複数の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、同じく金属骨材へ上記第1、2周辺加熱コイル部(14b)(14c)を取り付けた電気絶縁性の結束紐、更にその第1、2周辺加熱コイル部(14b)(14c)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、何れも図示省略してある。   It should be noted that an electrical insulating tube such as a glass fiber coated and integrated with a plurality of metal aggregates forming the support legs (F), and the first and second peripheral heating coil sections (14b) (14c) are also formed on the metal aggregates. Insulating tying cords attached to the first and second peripheral heating coil portions (14b) and (14c) are attached to the heat insulating material layers such as glass fiber and synthetic resin and integrated from above. It is omitted.

更に、上記電磁誘導加熱器(H)のベース板(16)はボビン(B)の真下位置にあり、中央加熱コイル部(14a)の芯棒(15)から下方に向かう磁束の遮断用として、その磁束を反射できる非磁性体のアルミ板やステンレス鋼板などから成り、その円形の周辺部が全体的な放射対称分布型に垂立する複数の支持ボルト(27)とその上下一対づつの固定ナット(28)(29)を介して、上記モーター受け台(10)へ昇降操作自在に取り付けられている。   Furthermore, the base plate (16) of the electromagnetic induction heater (H) is located immediately below the bobbin (B), and is used for blocking the magnetic flux directed downward from the core rod (15) of the central heating coil part (14a). A plurality of supporting bolts (27) and a pair of upper and lower fixing nuts, which are made of a non-magnetic aluminum plate or stainless steel plate capable of reflecting the magnetic flux, and whose circular peripheral portion is suspended in an overall radial symmetrical distribution type. (28) Via the (29), it is attached to the motor cradle (10) so as to be movable up and down.

そのため、上記ベース板(16)を昇降操作することにより、トレー(6)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することができる。尚、図例の場合ベース板(16)の支持ボルト(27)とその下側の固定ナット(29)を兼用して、上記据付け機筐(1)における胴壁面(9)側の支持ステー(8)へ、モーター受け台(10)を一挙に取り付け固定している。   Therefore, the overall installation height of the electromagnetic induction heater (H) relative to the bottom surface of the tray (6) can be adjusted by moving the base plate (16) up and down. In the case of the example shown in the figure, the support bolt (27) of the base plate (16) and the fixing nut (29) below the base plate (16) are also used to support the support stay ( 8), the motor cradle (10) is attached and fixed at once.

何れにしても、長い1本物の電磁誘導加熱コイル(14)における巻き径(d)の小さい中央加熱コイル部(14a)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(14b)(14c)とは図5、6のように、全体の同芯渦巻き状態として振り分け配置されており、しかもその磁性体の芯棒(15)が貫通された中央加熱コイル部(14a)と、内側の第1周辺加熱コイル部(14b)との隣り合う相互間にはサークル状の第1分離間隙(X1)が、又その内側の第1周辺加熱コイル部(14b)と外側の第2周辺加熱コイル部(14c)との隣り合う相互間にはやはりサークル状の第2分離間隙(X2)が確保されてもいる。   In any case, the central heating coil portion (14a) having a small winding diameter (d) in one long electromagnetic induction heating coil (14), and at least two first and second peripheral heating coil portions having successively larger winding diameters. As shown in FIGS. 5 and 6, (14 b) and (14 c) are distributed and arranged as a whole concentric spiral state, and the central heating coil portion (14 a) through which the core rod (15) of the magnetic material is passed. And a first separation gap (X1) in the form of a circle between the adjacent first peripheral heating coil part (14b) and the inner first peripheral heating coil part (14b). A circle-shaped second separation gap (X2) is also secured between the two neighboring heating coil portions (14c).

そのため、上記電磁誘導加熱コイル(14)における切り離し両端部の接続端子(30)を、その励磁用高周波電源(加熱用インバーター)(31)の出力端子と接続配線し、その高周波電源(31)から電磁誘導加熱コイル(14)へ高周波電流を供給して、上記トレー(6)と鎖交する磁束を発生させれば、そのトレー(6)の底面に渦電流が流れ、ジュール熱によりトレー(6)の発熱被膜(7)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。   Therefore, the connection terminals (30) at both ends of the electromagnetic induction heating coil (14) are connected to the output terminals of the excitation high-frequency power supply (heating inverter) (31), and the high-frequency power supply (31) is connected. When a high frequency current is supplied to the electromagnetic induction heating coil (14) to generate a magnetic flux interlinking with the tray (6), an eddy current flows on the bottom surface of the tray (6), and the tray (6 ) Can generate heat and heat the bottom center area (P1) and the bottom peripheral area (P2) (P3).

(32)は上記トレー(6)の底面と接触して、その発熱被膜(7)の温度を検知する熱電温度計や抵抗温度計、その他の接触式温度センサーであり、上記第1、2周辺加熱コイル部(14b)(14c)における隣り合う相互間の第2分離間隙(X2)に介在する位置関係として、上記ベース板(16)へ昇降作動自在に取り付け固定されている。   (32) is a thermoelectric thermometer, resistance thermometer, or other contact type temperature sensor that contacts the bottom surface of the tray (6) and detects the temperature of the heat generation coating (7). As a positional relationship interposed in the second separation gap (X2) between adjacent ones in the heating coil sections (14b) and (14c), the heating coil sections (14b) and (14c) are fixedly attached to the base plate (16) so as to be movable up and down.

そして、その接触式温度センサー(32)が上記トレー(6)における底面(発熱被膜)の現在温度を検知した出力信号により、高周波電源(31)の加熱力を強弱調整し、そのトレー(6)を予じめ設定された目標温度よりも高く過熱しないようになっている。尚、上記温度センサー(32)を下降させて、トレー(6)の底面から離すことにより、そのトレー(6)を清掃作業することができる。   The contact-type temperature sensor (32) adjusts the heating power of the high-frequency power source (31) with the output signal obtained by detecting the current temperature of the bottom surface (heat generating film) of the tray (6), and the tray (6). The temperature is higher than the target temperature set in advance. The tray (6) can be cleaned by lowering the temperature sensor (32) and separating it from the bottom surface of the tray (6).

更に言えば、図1〜8の実施形態はクレープ焼成機(M)に適用した本発明の電磁誘導加熱器(H)を例示しており、その矢印方向(R)へ回転駆動されるターンテーブル(4)によるトレー(6)の第1停止位置(S1)において、鶏卵や小麦粉、牛乳、砂糖などから成る食品(クレープ)の材料がそのトレー(6)に自動供給され、その材料は引き続くトレー(6)の第2〜6停止位置(S2)〜(S6)において、自動的に薄く圧延され、最後の第7停止位置(S7)において、その焼成し終えた食品(クレープ)がトレー(6)から自動的に取り出されることになり、このような1サイクルを繰り返す。その1サイクルの所要時間は例えば約5分であり、食品の種類や量などに応じて、タイマーにより適当に設定されることとなる。   Furthermore, the embodiment of FIGS. 1 to 8 exemplifies the electromagnetic induction heater (H) of the present invention applied to the crepe baking machine (M), and is a turntable that is rotationally driven in the direction of the arrow (R). In the first stop position (S1) of the tray (6) according to (4), the food (crepe) material consisting of eggs, flour, milk, sugar, etc. is automatically supplied to the tray (6), and the material continues to the tray. In the second to sixth stop positions (S2) to (S6) of (6), the food (crepe) that is automatically rolled thinly and finished baking at the last seventh stop position (S7) is the tray (6 ) Is automatically taken out, and such a cycle is repeated. The time required for one cycle is, for example, about 5 minutes, and is appropriately set by a timer according to the type and amount of food.

その場合、図1や図4〜6から併せて明白なように、上記トレー(6)の第1、2停止位置(S1)(S2)に臨む電磁誘導加熱コイル(14)同士の隣り合う1組と、同じく第3、4停止位置(S3)(S4)に臨む電磁誘導加熱コイル(14)同士の隣り合う1組と、更に第5、6停止位置(S5)(S6)に臨む電磁誘導加熱コイル(14)同士の隣り合う1組は、各々連続一本化されていると共に、その1組づつの接続端子(30a)(30b)(30c)が図7のように、互いに別個独立する3個づつの第1〜3高周波電源(加熱用インバーター)(31a)(31b)(31c)及び第1〜3操作パネル(33a)(33b)(33c)へ接続配線されている。(34)はその高周波電源(31a)(31b)(31c)の受け台であり、上記据付け機筐(1)におけるモーター受け台(10)の下段位置に取り付け固定されている。   In this case, as is apparent from FIG. 1 and FIGS. 4 to 6, the adjacent electromagnetic induction heating coils (14) facing the first and second stop positions (S 1) and (S 2) of the tray (6) are adjacent to each other. The electromagnetic induction heating coil (14) that faces the third and fourth stop positions (S3) and (S4), and the fifth and sixth stop positions (S5) and (S6). Each adjacent set of heating coils (14) is continuously integrated, and each set of connection terminals (30a) (30b) (30c) is independent of each other as shown in FIG. Connection wiring is made to three first to three high-frequency power sources (heating inverters) (31a) (31b) (31c) and first to third operation panels (33a) (33b) (33c). (34) is a cradle for the high-frequency power sources (31a), (31b) and (31c), and is fixedly attached to the lower position of the motor cradle (10) in the mounting machine casing (1).

しかも、上記隣り合う1組づつをなす電磁誘導加熱コイル(14)のうち、その何れか一方の第1、2周辺加熱コイル部(14b)(14c)におけるサークル状の第2分離間隙(X2)には、各々昇降作動可能な接触式の第1〜3温度センサー(32a)(32b)(32c)も介挿設置されており、その温度センサー(32a)(32b)(32c)を各々一旦停止中にあるトレー(6)の底面(発熱被膜)へ下方から押し当てるべく上昇させて、そのトレー(6)の温度を検知し得るようになっている。その温度検知後に温度センサー(32a)(32b)(32c)は下降されて、上記ターンテーブル(4)が回転されることは言うまでもない。   In addition, among the electromagnetic induction heating coils (14) forming one set of the adjacent groups, a circle-shaped second separation gap (X2) in one of the first and second peripheral heating coil portions (14b) (14c). In addition, contact type first to third temperature sensors (32a), (32b), and (32c) that can be moved up and down are also installed, and each of the temperature sensors (32a), (32b), and (32c) is temporarily stopped. The temperature of the tray (6) can be detected by raising the tray (6) so as to press against the bottom surface (heat-generating film) from below. Needless to say, the temperature sensors (32a), (32b) and (32c) are lowered after the temperature detection, and the turntable (4) is rotated.

そのため、上記食品(クレープ)を焼成する作用の1サイクル中、その第1、2停止位置(S1)(S2)に停止中のトレー(6)を例えば180℃、その後の第3、4停止位置(S3)(S4)に停止中のトレー(6)を例えば約170℃、引き続く第5、6停止位置(S5)(S6)に停止中のトレー(6)を例えば約160℃として、その加熱温度を順次段階的に低下させるべく、その第1〜3高周波電源(31a)(31b)(31c)の加熱力を別個独立に調整することができる。最後の第7停止位置(S7)に停止中のトレー(6)は、その加熱温度の低く冷めるので、これから焼成し上がった食品(クレープ)を容易に剥離し得るのである。尚、上記高周波電源(31a)(31b)(31c)の出力は一例として約3Kw、電流の周波数は同じく約20〜40KHz である。   Therefore, during one cycle of the action of baking the food (crepe), the tray (6) stopped at the first and second stop positions (S1) and (S2) is, for example, 180 ° C., and then the third and fourth stop positions. (S3) The tray (6) stopped at (S4) is set at, for example, about 170 ° C., and the trays (6) stopped at the fifth and sixth stop positions (S5) and (S6) are set at, for example, about 160 ° C. The heating power of the first to third high-frequency power sources (31a) (31b) (31c) can be adjusted separately and independently in order to lower the temperature step by step. Since the tray (6) stopped at the final seventh stop position (S7) is cooled at a low heating temperature, the baked food (crepe) can be easily peeled off. The output of the high frequency power source (31a) (31b) (31c) is about 3 Kw as an example, and the current frequency is about 20 to 40 KHz.

先の図1〜8に示した実施形態では、ギヤードモーター(11)により間歇的に回転駆動されるターンテーブル(4)上へ、複数の食品(クレープ)焼成用トレー(6)を全体的な放射対称分布型に取り付け使用して、そのターンテーブル(4)により移動される上記トレー(6)を、その一旦停止した状態において対応的な複数の電磁誘導加熱器(H)により電磁誘導加熱するようになっているが、別な図9〜13の変形実施形態に示す如く、1個の固定状態において使用される食材調理用鉄板(ホットプレート)(6)の電磁誘導加熱器(H)としても、本発明を適用実施することができる。   In the embodiment shown in FIGS. 1 to 8 above, a plurality of food (crepe) baking trays (6) are entirely placed on a turntable (4) that is intermittently rotated by a geared motor (11). The tray (6) moved by the turntable (4) is used by being attached to a radially symmetric distribution type, and is electromagnetically heated by a plurality of corresponding electromagnetic induction heaters (H) in the temporarily stopped state. However, as shown in another modified embodiment of FIGS. 9 to 13, as an electromagnetic induction heater (H) of an iron plate for cooking ingredients (hot plate) (6) used in one fixed state In addition, the present invention can be applied.

その変形実施形態の構成を採用する場合でも、上記ターンテーブル(4)に代る据付けかまど(1)の上面に開口するホットプレート受け入れ口(5)へ、食材調理用鉄板(ホットプレート)(6)を上方から係脱自在に差し込み係止させると共に、その鉄板(6)の底面に対する接触式の温度センサー(32)を、上記電磁誘導加熱器(H)の水平なベース板(16)へ昇降作動自在に取り付け固定する。そうすれば、その温度センサー(32)を下降させることにより、上記鉄板(6)を据付けかまど(1)のホットプレート受け入れ口(5)から取りはずして、その交換や清掃などを便利良く行なえる。   Even in the case of adopting the configuration of the modified embodiment, the food cooking iron plate (hot plate) (6) is connected to the hot plate receiving port (5) opened on the upper surface of the installation furnace (1) instead of the turntable (4). ) Is detachably inserted and locked from above, and the temperature sensor (32) that contacts the bottom surface of the iron plate (6) is moved up and down to the horizontal base plate (16) of the electromagnetic induction heater (H). Mount and fix operably. Then, by lowering the temperature sensor (32), the iron plate (6) can be removed from the hot plate receiving port (5) of the installation furnace (1), and can be exchanged and cleaned conveniently.

尚、図9〜13の変形実施形態におけるその他の構成は図1〜8の実施形態と実質的に同一であるため、その図9〜13に図1〜8との対応符号を記入するにとどめて、その詳細な説明を省略する。   In addition, since the other structure in the modified embodiment of FIGS. 9-13 is substantially the same as the embodiment of FIGS. 1-8, only the corresponding code | symbol with FIGS. 1-8 is entered in the FIGS. 9-13. Detailed description thereof will be omitted.

図14は上記食品(クレープ)焼成用トレー(6)又は食材調理用鉄板(ホットプレート)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(加熱用インバーター)(31)(31a)(31b)(31c)の出力を予じめ調整することによって、その調整された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が電磁誘導加熱コイル(14)の中央加熱コイル部(14a)を貫通する磁性体の垂直な芯棒(15)から、上記トレー(6)又は鉄板の底面に吸い寄せられ浸透して、その中央加熱コイル部(14a)から発生する磁界と内側の第1周辺加熱コイル部(14b)から発生する磁界とをオーパラップさせると共に、その内側の第1周辺加熱コイル部(14b)と外側の第2周辺加熱コイル部(14c)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(14a)(14b)(14c)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、上記トレー(6)又は鉄板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. 14 is a graph showing the heating temperature distribution of the bottom surface of the food (crepe) baking tray (6) or the iron plate (hot plate) for cooking food, and the high-frequency power source (heating inverter) (31) (31a) ( 31b) By adjusting the output of (31c) in advance, if the electromagnetic induction heating is performed under the adjusted constant heating force, the magnetic flux generated by the induction current is heated by the central heating of the electromagnetic induction heating coil (14). The magnetic field generated from the central heating coil portion (14a) and the inner side are sucked and penetrated from the vertical core rod (15) of the magnetic material penetrating the coil portion (14a) to the bottom surface of the tray (6) or the iron plate. The magnetic field generated from the first peripheral heating coil portion (14b) is overlapped, and the first peripheral heating coil portion (14b) on the inner side and the second peripheral heating coil portion (14 on the outer side) ) Are also overlapped, and the heating coil portions (14a), (14b), and (14c) are adjacent to each other between the adjacent inner and outer gaps (X1) and (X2) due to the addition effect as the same high-frequency current. Can be leveled or leveled to a high temperature and the tray (6) or the entire bottom surface of the iron plate can be heated to a uniform temperature distribution state.

又、図15は図1の第3停止位置(S3)にある食品(クレープ)焼成用トレー(6)内のクレープ材料を、本発明の電磁誘導加熱器(H)による電磁誘導加熱中の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り、これによれば上記トレー(6)の測定点(イ)〜(ヘ)における加熱温度分布が、そのトレー(6)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、ほぼ均一な温度分布状態を得られている。   15 shows the crepe material in the food (crepe) baking tray (6) in the third stop position (S3) of FIG. 1 during electromagnetic induction heating by the electromagnetic induction heater (H) of the present invention. It is a graph which shows the heating temperature distribution in the time-dependent fixed time sampled every second, According to this, the heating temperature distribution in the measurement points (A)-(F) of the tray (6) is the tray (6). As a whole, the bottom surface of the substrate stays within a variation range of about 5 ° C., and a substantially uniform temperature distribution state is obtained.

磁性体の芯棒(15)に巻き付けた中央加熱コイル部(14a)の巻き回数を減少させて、これが受け持ち分担する底面中央区域(P1)の測定点(イ)(ロ)における加熱力を低く設定する一方、底面周辺区域(P2)(P3)の加熱を受け持ち分担する第1、2周辺加熱コイル部(14b)(14c)を、その巻き径が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、上記底面周辺区域(P2)(P3)の測定点(ニ)(ホ)(ヘ)おける加熱力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。   The number of turns of the central heating coil portion (14a) wound around the magnetic core rod (15) is decreased, and the heating power at the measurement point (b) (b) in the bottom central region (P1) that is shared by this is reduced. On the other hand, the first and second peripheral heating coil portions (14b) and (14c) that take charge of and share the heating of the bottom peripheral areas (P2) and (P3) are set as a pair of inside and outside with different winding diameters, and only a fixed gap (X2). By separating them, the heating power at the measurement points (d) (e) (f) in the bottom peripheral area (P2) (P3) is leveled almost uniformly, which contributes to the achievement of the above effect. Conceivable.

(1)・据付け機筐
(2)・接地脚座
(3)・キャスター
(4)・ターンテーブル
(5)・トレー受け入れ口
(6)・トレー
(7)・発熱被膜
(8)・支持ステー
(9)・胴壁面
(10)・モーター受け台
(11)・ギヤードモーター
(12)・出力軸
(13)・テーブル受けフランジ
(14)・電磁誘導加熱コイル
(14a)・中央加熱コイル部
(14b)(14c)・第1、2周辺加熱コイル部
(15)・芯棒
(16)・ベース板
(17)(18)・張り出しフランジ
(29)・支持ボルト
(20)(22)(26)(28)(29)・固定ナット
(21)・センターボルト
(23)・腕杆
(24)・縁取りリング
(25)・脚杆
(25a)・下端ネジ杆部
(27)・支持ボルト
(30)・接続端子
(31)(31a)(31b)(31c)・高周波電源(インバーター)
(32)(32a)(32b)(32c)・温度センサー
(33)(33a)(33b)(33c)・操作パネル
(34)・電源受け台
(B)・ボビン
(F)・支持脚
(H)・電磁誘導加熱器
(M)・クレープ焼成機
(R)・回転方向
(P1)・底面中央区域
(P2)(P3)・底面周辺区域
(d)・中央加熱コイル部の巻き径
(X1)・第1分離間隙
(X2)・第2分離間隙
(1) ・ Installation machine housing (2) ・ Grounding seat (3) ・ Caster (4) ・ Turntable (5) ・ Tray receiving port (6) ・ Tray (7) ・ Heat coating (8) ・ Support stay ( 9)-Body wall (10)-Motor cradle (11)-Geared motor (12)-Output shaft (13)-Table receiving flange (14)-Electromagnetic induction heating coil (14a)-Central heating coil (14b) (14c) · 1st and 2nd peripheral heating coil part (15) · Core rod (16) · Base plate (17) (18) · Overhang flange (29) · Support bolt (20) (22) (26) (28 ) (29)-Fixing nut (21)-Center bolt (23)-Armband (24)-Edge ring (25)-Leg collar (25a)-Lower end screw collar (27)-Support bolt (30)-Connection Terminal (31) (31a ) (31b) (31c) ・ High frequency power supply (inverter)
(32) (32a) (32b) (32c) Temperature sensor (33) (33a) (33b) (33c) Operation panel (34) Power cradle (B) Bobbin (F) Support leg (H ) · Electromagnetic induction heater (M) · Crepe baking machine (R) · Direction of rotation (P1) · Bottom center area (P2) (P3) · Bottom area (d) · Central heating coil diameter (X1)・ First separation gap (X2) ・ Second separation gap

Claims (4)

食材調理用鉄板又は食品焼成用トレー(6)を加熱するための電磁誘導加熱器(H)であって、
1本物の電磁誘導加熱コイル(14)における巻き径が小さい中央加熱コイル部(14a)を巻き付けたボビン(B)と、同じく加熱コイル(14)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(14b)(14c)を受け持った支持脚(F)と、上記中央加熱コイル部(14a)の中心へ垂直に貫通された磁性体の芯棒(15)とから成り、
その芯棒(15)を上記鉄板又はトレー(6)の底面に向かって昇降調整できるように定めると共に、上記電磁誘導加熱コイル(14)における周辺加熱コイル部(14b)(14c)同士の隣り合う相互間を一定間隙(X2)だけ離隔させることにより、上記鉄板又はトレー(6)における底面中央区域(P1)の加熱温度分布と底面周辺区域(P2)(P3)のそれとを均一に保つことを特徴とする電磁誘導加熱器。
An electromagnetic induction heater (H) for heating an iron plate for cooking food or a tray for baking food (6),
The bobbin (B) around which the central heating coil portion (14a) having a small winding diameter in the single electromagnetic induction heating coil (14) is wound, and at least two first and second first and second heating coils (14) whose winding diameters are successively larger. A supporting leg (F) that handles the peripheral heating coil portions (14b) and (14c), and a magnetic core rod (15) vertically penetrated to the center of the central heating coil portion (14a);
The core rod (15) is determined so that it can be adjusted up and down toward the bottom surface of the iron plate or tray (6), and the peripheral heating coil portions (14b) (14c) of the electromagnetic induction heating coil (14) are adjacent to each other. By separating them from each other by a constant gap (X2), the heating temperature distribution in the bottom central area (P1) and the bottom peripheral area (P2) (P3) in the iron plate or tray (6) are kept uniform. Features an electromagnetic induction heater.
ボビン(B)と支持脚(F)とを食材調理用鉄板又は食品焼成用トレー(6)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記載の電磁誘導加熱器。   The bobbin (B) and the support leg (F) are defined so that they can be adjusted up and down at once or separately toward the bottom of the iron plate for cooking food or the tray for food baking (6). The electromagnetic induction heater described. 1本物の電磁誘導加熱コイル(14)における周辺加熱コイル部(14b)(14c)同士の隣り合う一定間隙(X2)へ、食材調理用鉄板又は食品焼成用トレー(6)の底面と接触し得る接触式温度センサー(32)(32a)(32b)(32c)を昇降作動自在に介挿設置して、
その温度センサー(32)(32a)(32b)(32c)が上記鉄板又はトレー(6)の現在温度を検知した出力信号により、上記電磁誘導加熱コイル励磁用高周波電源(31)(31a)(31b)(31c)の加熱力を強弱調整するように定めたことを特徴とする請求項1記載の電磁誘導加熱器。
In a single electromagnetic induction heating coil (14), the peripheral heating coil portions (14b) (14c) can be in contact with the adjacent constant gap (X2) with the bottom surface of the food cooking iron plate or food baking tray (6). Contact type temperature sensors (32) (32a) (32b) (32c) are inserted and installed so as to be movable up and down,
The high-frequency power source for exciting the electromagnetic induction heating coil (31) (31a) (31b) based on the output signal of the temperature sensor (32) (32a) (32b) (32c) detecting the current temperature of the iron plate or tray (6). The electromagnetic induction heater according to claim 1, wherein the heating power of (31c) is determined to be adjusted in strength.
自動間歇的に回転駆動される円形なターンテーブル(4)の周辺部へ、複数の食材調理用鉄板又は食品焼成用トレー(6)を全体的な放射対称分布型として、しかも上方から係脱自在に差し込み係止させると共に、
その鉄板又はトレー(6)が一旦停止される位置(S1)(S2)(S3)(S4)(S5)(S6)へ、下方から渦巻き状態に臨ませた1本物の電磁誘導加熱コイル(14)により、上記鉄板又はトレー(6)の底面を停止中だけ加熱するように定めたことを特徴とする請求項1記載の電磁誘導加熱器。
A plurality of food-cooking iron plates or food baking trays (6) are arranged in an overall radial symmetry distribution type and freely disengaged from above on the periphery of a circular turntable (4) that is automatically driven to rotate intermittently. And lock it into
A single electromagnetic induction heating coil (14) facing the spiral state from below to the position (S1) (S2) (S3) (S4) (S5) (S6) where the iron plate or tray (6) is temporarily stopped. The electromagnetic induction heater according to claim 1, characterized in that the bottom surface of the iron plate or tray (6) is heated only when stopped.
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JP2013090859A (en) * 2011-10-27 2013-05-16 Mitsubishi Electric Corp Rice cooker
CN107071947A (en) * 2017-06-14 2017-08-18 青岛海越机电科技有限公司 Large-sized end enclosure inner wall overlaying electromagnetic-induction heating method
KR20180082858A (en) * 2017-01-11 2018-07-19 엘지전자 주식회사 Magnetic flux guide structure and smart table having the same
CN115011781A (en) * 2022-06-09 2022-09-06 江苏科技大学 Electromagnetic induction back burning robot and working method thereof

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JP2007319250A (en) * 2006-05-30 2007-12-13 Tiger Vacuum Bottle Co Ltd Electric rice cooker

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JP2002043043A (en) * 2000-07-19 2002-02-08 Fuji Electric Co Ltd Electromagnetic induction heating device
JP2005027979A (en) * 2003-07-09 2005-02-03 Shinagawa Kogyosho:Kk Fried food production apparatus
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JP2013090859A (en) * 2011-10-27 2013-05-16 Mitsubishi Electric Corp Rice cooker
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