JPS622183U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは本考案の一実施例誘導加熱コイルの
回路構成を示す斜視図、第１図ｂ，ｃおよびｄは
それぞれ第１図ａにおけるＸ―Ｘ線、Ｙ―Ｙ線お
よびＺ―Ｚ線における実施例誘導加熱コイルの断
面図、第１図ｅは本考案により得られる被加熱部
範囲パターンを示す断面図、第２図ａおよびｂは
それぞれ従来誘導加熱コイルの斜視図および断面
正面図、第２図ｃは従来誘導加熱コイルおよびそ
の変形コイルに存する問題点を示す断面正面図で
ある。 Ｃ…誘導加熱コイル、Ｗ…段付き軸、Ｗｓ…軸
部、Ｗｄ…段部、Ｌ…段差壁、Ｍ…隅部、Ｎ…段
側壁、Ｏ…軸線、１，２…軸部加熱導体、３…段
部加熱導体、３ａ…第１の分割導体、３ｂ…第２
の分割導体、３ｃ…第３の分割導体、４，５…連
絡導体。 FIG. 1a is a perspective view showing the circuit configuration of an induction heating coil according to an embodiment of the present invention, and FIGS. 1b, c, and d are X-X lines, Y-Y lines, and Z-Z lines in FIG. FIG. 1e is a cross-sectional view showing a heated area pattern obtained by the present invention, and FIGS. 2a and b are a perspective view and a cross-sectional front view of a conventional induction heating coil, respectively. , FIG. 2c is a cross-sectional front view showing problems existing in the conventional induction heating coil and its modified coil. C... Induction heating coil, W... Stepped shaft, Ws... Shaft, Wd... Step, L... Step wall, M... Corner, N... Step side wall, O... Axis line, 1, 2... Shaft heating conductor, 3... Step heating conductor, 3a... First divided conductor, 3b... Second
divided conductor, 3c... third divided conductor, 4, 5... connecting conductor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸回転する段付き軸の軸線に対し１８０°隔て
た軸部表面に沿つてそれぞれ平行する軸部加熱導
体および当該軸部加熱導体それぞれの一端に接続
して上記軸部に続く段部の所定周角度範囲に対向
する段部加熱導体を具えたコイルにおいて、上記
段部加熱導体を三分割し、いずれか一方の軸部加
熱導体に一端が接続される第１の分割導体および
いずれか他方の軸部加熱導体に一端が接続される
第３の分割導体それぞれは軸部と段部の段差壁と
が交わる隅部に対向する円弧とし、第２の分割導
体は段部の上記段差壁に続く段側壁に対向する円
弧とし、上記第１の分割導体の他端と第２の分割
導体の一端とを段付き軸の軸線に平行な連絡導体
で接続するとともに、両分割導体の累積円弧長き
が１８０°を超えた段部の所定周角度範囲を囲繞
する如く構成し、上記第３の分割導体は上記１８
０°を超えた位置にある第２の分割導体の他端と
他方の軸部加熱導体の一端とがなす円弧長さに等
しく形成するとともに、その他端を段付き軸の軸
線に平行な連絡導体で上記第２の分割導体の他端
に接続する如く構成してなることを特徴とする誘
導加熱コイル。 Shaft heating conductors that are parallel to each other along the shaft surface separated by 180 degrees from the axis of the stepped shaft that rotates, and a predetermined circumference of a stepped portion that is connected to one end of each of the shaft heating conductors and continues to the shaft. In a coil equipped with stepped heating conductors facing each other in an angular range, the stepped heating conductor is divided into three parts, and a first divided conductor whose one end is connected to one of the shaft heating conductors and one of the other shafts is divided into three parts. Each of the third divided conductors, one end of which is connected to the partial heating conductor, has a circular arc facing the corner where the shaft portion intersects with the stepped wall of the stepped portion, and the second divided conductor is connected to the stepped wall of the stepped portion. A circular arc facing the side wall is formed, and the other end of the first divided conductor and one end of the second divided conductor are connected by a connecting conductor parallel to the axis of the stepped shaft, and the cumulative arc length of both divided conductors is 180 mm. The third divided conductor is configured to surround a predetermined circumferential angle range of the stepped portion exceeding 18°.
The length of the arc formed by the other end of the second divided conductor at a position exceeding 0° and one end of the other shaft heating conductor is equal to the arc length, and the other end is a connecting conductor parallel to the axis of the stepped shaft. An induction heating coil configured to be connected to the other end of the second divided conductor.