JPH066477Y2 - Work coil - Google Patents
Work coilInfo
- Publication number
- JPH066477Y2 JPH066477Y2 JP1987139115U JP13911587U JPH066477Y2 JP H066477 Y2 JPH066477 Y2 JP H066477Y2 JP 1987139115 U JP1987139115 U JP 1987139115U JP 13911587 U JP13911587 U JP 13911587U JP H066477 Y2 JPH066477 Y2 JP H066477Y2
- Authority
- JP
- Japan
- Prior art keywords
- work coil
- heated
- iron core
- conductor
- magnetic flux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- General Induction Heating (AREA)
Description
【考案の詳細な説明】 〔技術分野〕 本考案は、導体間の磁束の集束機構を改良したワークコ
イルに関する。Description: TECHNICAL FIELD The present invention relates to a work coil having an improved focusing mechanism of magnetic flux between conductors.
誘導加熱装置に於て平形の被加熱物を均一な温度に加熱
する時、従来第２図のように構成されている。Conventionally, when heating a flat object to be heated to a uniform temperature in an induction heating device, it is constructed as shown in FIG.
図に於て、ワークコイル11は、渦巻状に巻かれ、その上
に被加熱物13が置かれる。In the figure, a work coil 11 is wound in a spiral shape, and an object 13 to be heated is placed thereon.
この状態で端子121、端子122に交流電力を供給すると、
ワークコイルを形成する導体の周囲には交番磁束14が発
生し、被加熱物13と鎖交すると、被加熱物に誘導電流が
流れそのジュール熱によって被加熱物が発熱する。When AC power is supplied to the terminals 121 and 122 in this state,
When an alternating magnetic flux 14 is generated around the conductor forming the work coil and interlinks with the object to be heated 13, an induced current flows through the object to be heated and the object to be heated generates heat due to Joule heat.
しかし、渦巻形のワークコイルでは被加熱物13を均一な
温度に加熱しようとする時、被加熱物に対し鎖交する磁
束の均一性を満足させる条件として、ワークコイルの導
体と被加熱物13との間で距離ｄ又は層間のピッチＰが影
響する。いわゆる被加熱物に鎖交する磁束が被加熱物に
対しどの鎖交面でも単位面積当たり同じ磁束の数でない
と均一加熱が出来ない。そのためには距離ｄ，ピッチＰ
はすべての面で同じ磁束密度になるよう構成されるが、
製作上その精度を保つことは困難である。However, in a spiral work coil, when the object to be heated 13 is heated to a uniform temperature, the condition of satisfying the uniformity of the magnetic flux interlinking with the object to be heated is that the conductor of the work coil and the object to be heated 13 The distance d or the pitch P between layers has an effect. The so-called magnetic flux interlinking with the object to be heated cannot be uniformly heated unless the number of magnetic flux per unit area is the same for any object to be heated. To do this, distance d, pitch P
Is configured to have the same magnetic flux density on all sides,
It is difficult to maintain the precision in manufacturing.
〔考案の目的〕 本考案は、被加熱物を均一に加熱が出来、均一に加熱す
るための調整が容易な誘導加熱用のワークコイルを提供
することにある。[Object of the Invention] An object of the present invention is to provide a work coil for induction heating, which can uniformly heat an object to be heated and which can be easily adjusted for uniform heating.
ワークコイルの上に在る被加熱物を誘導加熱により均一
な温度に加熱するために、被加熱物に鎖交する磁束を均
一にする必要があり、本考案のワークコイルは渦巻形の
ワークコイルの導体の各層の間に、高い比透磁率特性を
有し大きさが異なり、被加熱物の反対側に高さ調整ネジ
を取り付けた鉄心を配置し、ワークコイル周辺の導体の
部分に於ても磁束を出来るだけ均一に出来るワークコイ
ルとするもので、被加熱物とワークコイルとの距離，導
体，層間のピッチのばらつきがあっても被加熱物に加わ
る磁束を均一化出来るよう、ワークコイルが作る磁界に
より、ワークコイルの導体の間に配置した鉄心により磁
束密度を変えるよう構成したもので、鉄心の形状と、鉄
心と被加熱物との距離を変えることにより、被加熱物に
鎖交する磁束密度を調整出来る構造とする。In order to heat the object to be heated above the work coil to a uniform temperature by induction heating, it is necessary to make the magnetic flux linked to the object to be heated uniform. The work coil of the present invention is a spiral work coil. Between the conductor layers, the iron cores with high relative permeability characteristics and different sizes, and the height adjustment screws attached to the opposite side of the object to be heated are placed. Is a work coil that can make the magnetic flux as uniform as possible. Even if there are variations in the distance between the object to be heated and the work coil, the conductor, and the pitch between layers It is configured to change the magnetic flux density by the iron core placed between the conductors of the work coil by the magnetic field created by the.By changing the shape of the iron core and the distance between the iron core and the object to be heated, it is linked to the object to be heated. Magnetic flux density And the adjustment can be structure.
以下、本考案の一実施例を図面を参照して説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図に本考案のワークコイルの一実施例の構成を示
す。渦巻形に数回巻かれたワークコイルの導体21と導体
21の層間に、その層間の長さに合わせた大きさの分割し
た鉄心22を挿入し、導体の間に配置した鉄心の周囲は絶
縁物25で包み、分割された鉄心22には、それぞれに被加
熱物との間の高さを調整するための高さ調整ネジ24が取
付られており、高さ調整ネジ24により鉄心と被加熱物と
の間の距離を被加熱物の面に垂直方向に調整し、高い比
透磁率を有する鉄心を被加熱物23に近づけたり離したり
することにより、ワークコイルに流れる電流が作る磁界
により磁心を磁化し、比透磁率の高い鉄心はワークコイ
ルが作る磁界により磁化されより強い磁束を発生するの
で、鉄心の大きさと被加熱物からの位置を変えることに
より、比加熱物に鎖交する単位面積当たりの磁束の数、
即ち磁束密度を均一にし被加熱物を均一に加熱する。こ
の高さ調整ネジ24は非磁性体で非金属のものを使用す
る。又、鉄心は高い比透磁率特性でワークコイルの導体
間の位置により大きさの異なるものを使用するが、材質
が異なり、又磁気特性の異なる鉄心を組合せ用いてもよ
い。FIG. 1 shows the construction of an embodiment of the work coil of the present invention. Work coil conductor 21 and conductor wound several times in a spiral shape
Insert a divided iron core 22 of a size corresponding to the length between the layers between the 21 layers, wrap the periphery of the iron core arranged between the conductors with an insulator 25, the divided iron core 22 to each A height adjusting screw 24 for adjusting the height between the object to be heated is attached, and the height adjusting screw 24 makes the distance between the iron core and the object to be heated perpendicular to the surface of the object to be heated. The magnetic field generated by the current flowing in the work coil magnetizes the magnetic core by moving the iron core having a high relative magnetic permeability closer to or away from the object to be heated 23, and the work coil makes an iron core having a high relative magnetic permeability. Since it is magnetized by the magnetic field to generate a stronger magnetic flux, by changing the size of the iron core and the position from the object to be heated, the number of magnetic fluxes per unit area linked to the specific heating object,
That is, the magnetic flux density is made uniform and the object to be heated is uniformly heated. The height adjusting screw 24 is made of non-magnetic material and non-metal. Further, an iron core having a high relative magnetic permeability characteristic and a different size depending on the position between the conductors of the work coil is used, but iron cores having different materials and different magnetic characteristics may be used in combination.
以上述べたように、本考案による誘導加熱用ワークコイ
ルは、ワークコイルの導体の間に高さ調整ネジ付きの鉄
心を設置し、高さ調整ネジにより鉄心をワークコイルの
導体間で被加熱物との間を調整出来るワークコイルとす
ることにより、平形の被加熱物を均一に加熱することが
容易に出来、平板状の鋼材の切質な焼き入れや焼なまし
を可能とするワークコイルを提供出来る。As described above, in the induction heating work coil according to the present invention, the iron core with the height adjusting screw is installed between the conductors of the work coil, and the iron core is placed between the conductors of the work coil by the height adjusting screw. By using a work coil that can adjust the space between and, it is easy to uniformly heat a flat object to be heated, and a work coil that enables sharp quenching and annealing of flat steel Can be provided.
第１図は、本考案のワークコイルの一実施例の図で、第
１図(a)は本考案のワークコイルの平面図。第１図(b)は
被加熱物を載せた状態に於ける断面図。 第２図は、従来形状のワークコイルで、第２図(a)は平
面図。第２図(b)被加熱物を載せた状態に於ける断面
図。 11,21……ワークコイル導体。 121,122……端子。 13,23……被加熱物。 14……交番磁束。 22……鉄心。 24……高さ調整ネジ。 25……絶縁物。 ｄ……ワークコイルの導体と被加熱物との距離。 ｐ……ワークコイルの導体と導体の層間のピッチ。FIG. 1 is a view of an embodiment of the work coil of the present invention, and FIG. 1 (a) is a plan view of the work coil of the present invention. FIG. 1 (b) is a cross-sectional view showing a state in which an object to be heated is placed. FIG. 2 is a conventional work coil, and FIG. 2 (a) is a plan view. FIG. 2 (b) is a sectional view showing a state in which the object to be heated is placed. 11,21 …… Work coil conductor. 121,122 …… Terminals. 13,23 …… Heating object. 14 ... alternating magnetic flux. 22 …… Iron core. 24 ... Height adjustment screw. 25 ... Insulator. d: Distance between the work coil conductor and the object to be heated. p: Pitch between work coil conductors and conductor layers.
Claims (1)
ークコイルに於て、ワークコイルの導体と導体との間
に、夫々分割され高さ調整ネジ付きの電気絶縁物で包ん
だ大きさの異なる鉄心を連続して配置し、被加熱物と前
記鉄心との距離を独立して調整可能としたことを特徴と
するワークコイル。1. A work coil for induction heating in which a conductor is spirally wound a plurality of times, and a size wrapped between the conductor of the work coil and an electric insulator each of which is divided and has a height adjusting screw. A work coil, in which iron cores having different heights are continuously arranged, and a distance between an object to be heated and the iron core can be independently adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987139115U JPH066477Y2 (en) | 1987-09-10 | 1987-09-10 | Work coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987139115U JPH066477Y2 (en) | 1987-09-10 | 1987-09-10 | Work coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6443591U JPS6443591U (en) | 1989-03-15 |
| JPH066477Y2 true JPH066477Y2 (en) | 1994-02-16 |
Family
ID=31402075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987139115U Expired - Lifetime JPH066477Y2 (en) | 1987-09-10 | 1987-09-10 | Work coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066477Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439487U (en) * | 1990-07-31 | 1992-04-03 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5330759U (en) * | 1976-08-24 | 1978-03-16 | ||
| JPS5388843U (en) * | 1976-12-23 | 1978-07-21 | ||
| JPS5949189A (en) * | 1982-09-13 | 1984-03-21 | 株式会社東芝 | Heating coil for electromagnetic induction cooking device |
-
1987
- 1987-09-10 JP JP1987139115U patent/JPH066477Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6443591U (en) | 1989-03-15 |
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