JPS6388080U - - Google Patents

Description

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

第１図は本考案の実施例１の鉄心の斜視図、第
２図は同上の磁性体の斜視図、第３図は同上の実
施例２の鉄心の分解斜視図、第４図は同上の鉄心
板の平面図、第５図は同上の鉄心の斜視図、第６
図は同上の実施例３の鉄心の分解斜視図、第７図
は同上の説明図、第８図は同上の実施例４の鉄心
の平面図、第９図は同上の鉄心をハウジングに取
着した状態を示す平面図、第１０図及び第１１図
は同上の説明図、第１２図はステツプモータの原
理模型図、第１３図は動作波形図、第１４図はス
テツプモータの断面図、第１５図は従来例を示す
拡大斜視図、第１６図は従来例の鉄心の分解斜視
図である。 １は永久磁石、２は回転軸、３はロータ、４は
コイル、５は鉄心、５ａは磁極歯、６はステータ
である。 Fig. 1 is a perspective view of the iron core of Example 1 of the present invention, Fig. 2 is a perspective view of the magnetic body of the same as above, Fig. 3 is an exploded perspective view of the iron core of Example 2 of the same as above, and Fig. 4 is an exploded perspective view of the iron core of Example 2 of the same as above. Figure 5 is a plan view of the iron core plate, and Figure 6 is a perspective view of the same core as above.
The figure is an exploded perspective view of the iron core of Example 3 same as above, FIG. 7 is an explanatory view of same as above, FIG. 8 is a plan view of iron core of Example 4 same as above, and FIG. FIG. 10 and FIG. 11 are explanatory diagrams of the same as above, FIG. 12 is a principle model diagram of the step motor, FIG. 13 is an operation waveform diagram, FIG. 14 is a sectional view of the step motor, and FIG. FIG. 15 is an enlarged perspective view of a conventional example, and FIG. 16 is an exploded perspective view of the conventional iron core. 1 is a permanent magnet, 2 is a rotating shaft, 3 is a rotor, 4 is a coil, 5 is an iron core, 5a is a magnetic pole tooth, and 6 is a stator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 周方向に互いに異なる多数の磁極が着磁された
円盤型の永久磁石と、この永久磁石の中心に軸着
した回転軸とでロータを形成し、上記永久磁石の
磁極に磁極歯を対面せしめてコイルを巻回した鉄
心を、永久磁石の周方向に複数配列したステータ
を形成したステツプモータにおいて、永久磁石の
磁極に対面する鉄心の磁極歯の面積を、永久磁石
の磁極面積と略同一として成ることを特徴とする
ステツプモータ。 A rotor is formed by a disk-shaped permanent magnet magnetized with a large number of mutually different magnetic poles in the circumferential direction, and a rotating shaft fixed at the center of this permanent magnet, and the magnetic pole teeth are made to face the magnetic poles of the permanent magnet. In a step motor that has a stator in which a plurality of iron cores wound with coils are arranged in the circumferential direction of a permanent magnet, the area of the magnetic pole teeth of the iron core facing the magnetic poles of the permanent magnet is approximately the same as the magnetic pole area of the permanent magnet. A step motor characterized by: