JPS63124083U

JPS63124083U -

Info

Publication number: JPS63124083U
Application number: JP1615687U
Authority: JP
Priority date: 1987-02-06
Filing date: 1987-02-06
Publication date: 1988-08-12

Description

[Brief explanation of the drawing]

第１図は本考案のハイブリツド形ステツピング
モータの主要部を表わす一部切欠分解斜視図、第
２図は従来の可変レラクタンス形ステツピングモ
ータの説明図、第３図は従来の永久磁石形ステツ
ピングモータの説明図、第４図は従来のハイブリ
ツド形ステツピングモータの説明図、第５図は従
来の具体的なハイブリツド形ステツピングモータ
の主要部を表わす斜視図である。［符号の説明］、１……可変レラクタンス形ス
テツピングモータ、２……突極、３……ステータ
電機子鉄心、４……ステータコイル、５……突極
、６……ロータ、７……永久磁石形ステツピング
モータ、８……突極、９……ステータコイル、１
０……ステータ電機子、１１……空隙、１２……
マグネツトロータ、１３，１３′，１３″……ハ
イブリツド形（複合形）ステツピングモータ、１
４，１４′……突極、１５……凹凸歯、１６……
ステータコイル、１７，１７′……ステータ電機
子、１８……凹凸歯、１９，１９′……ロータ、
２０……モータハウジング、２１……止め用螺子
穴、２２，２２′……凹凸歯、２２ａ，２２ａ′
……凸部、２２ｂ，２２ｂ′……凹部、２３……
凹凸歯、２３ａ……凸部、２３ｂ……凹部、２４
……絶縁体、２５……コネクタ、２６……保持部
材、２７……ステータヨーク、２８……回転軸、
２９……磁気エンコーダ、３０……永久磁石、３
０ａ……上端部、３１……磁気エンコーダ磁極、
３２……空隙、３３，３４……磁気センサ、３５
……プリント基板、３６……導電パターン、３７
……リード線。 Fig. 1 is a partially cutaway exploded perspective view showing the main parts of the hybrid stepping motor of the present invention, Fig. 2 is an explanatory diagram of a conventional variable reluctance stepping motor, and Fig. 3 is an explanatory diagram of a conventional permanent magnet stepping motor. FIG. 4 is an explanatory diagram of a conventional hybrid stepping motor, and FIG. 5 is a perspective view showing the main parts of a specific conventional hybrid stepping motor. [Description of symbols] 1... Variable reluctance stepping motor, 2... Salient pole, 3... Stator armature core, 4... Stator coil, 5... Salient pole, 6... Rotor, 7... Permanent magnet type stepping motor, 8... salient pole, 9... stator coil, 1
0... Stator armature, 11... Air gap, 12...
Magnetic rotor, 13, 13', 13''...Hybrid type (compound type) stepping motor, 1
4, 14'... salient pole, 15... uneven teeth, 16...
Stator coil, 17, 17'... Stator armature, 18... Uneven teeth, 19, 19'... Rotor,
20... Motor housing, 21... Stopping screw hole, 22, 22'... Uneven teeth, 22a, 22a'
...Convex portion, 22b, 22b'...Concave portion, 23...
Uneven tooth, 23a... Convex portion, 23b... Concave portion, 24
... Insulator, 25 ... Connector, 26 ... Holding member, 27 ... Stator yoke, 28 ... Rotating shaft,
29...Magnetic encoder, 30...Permanent magnet, 3
0a...Top end, 31...Magnetic encoder magnetic pole,
32... air gap, 33, 34... magnetic sensor, 35
...Printed circuit board, 36...Conductive pattern, 37
……Lead.

Claims

[Scope of utility model registration request]

A permanent magnet provided inside the rotor facing the stator armature through an air gap is exposed on the end face of the rotor, and N and S magnetic poles are arranged at a fine pitch of 2P (P is 2 or more) on the end face of the exposed permanent magnet. A hybrid stepping motor with a built-in magnetic encoder, the stepping motor having a built-in magnetic encoder, the stepping motor having a built-in magnetic encoder, which is magnetized to form a magnetic encoder magnetic pole, and is provided with a position detection magnetic sensor that faces the magnetic encoder magnetic pole and detects the magnetic pole.