JPS6188480U - - Google Patents

Description

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

第１図ａは従来の電動機の断面図、第１図ｂは
その主永久磁石部分の平面図、第１図ｃはその印
刷配線基板の詳細図、第２図ａは本考案電動機の
回転子部分の断面図、第２図ｂはその主永久磁石
部分の平面図、第２図ｃはその主永久磁石部分の
斜視図である。 １……回転子ヨーク、２……主永久磁石、３…
…回転子ボス、４……回転子軸、５……発電機用
永久磁石、６−１，６−２……位置検出信号発生
用磁石、７，８……軸受、９……軸受ブラケツト
、１０……固定子鉄芯、１１……固定子巻線、１
２……印刷配線基板、１３……発電用巻線、１３
−１……発電線、１３−２，１３−３……渡り線
、１３−４……端子、１４……位置検出信号用検
出器。 Figure 1a is a sectional view of a conventional electric motor, Figure 1b is a plan view of its main permanent magnet portion, Figure 1c is a detailed view of its printed wiring board, and Figure 2a is a rotor of the motor of the present invention. FIG. 2b is a plan view of the main permanent magnet portion, and FIG. 2c is a perspective view of the main permanent magnet portion. 1...Rotor yoke, 2...Main permanent magnet, 3...
... Rotor boss, 4 ... Rotor shaft, 5 ... Permanent magnet for generator, 6-1, 6-2 ... Magnet for position detection signal generation, 7, 8 ... Bearing, 9 ... Bearing bracket, 10...Stator iron core, 11...Stator winding, 1
2... Printed wiring board, 13... Power generation winding, 13
-1... Power generation line, 13-2, 13-3... Crossover wire, 13-4... Terminal, 14... Position detection signal detector.

Claims (1)

【実用新案登録請求の範囲】 (1) 複数個の固定子巻線を巻装した円筒形固定
子と、該円筒形固定子の外側に空隙を介して対向
配設したカツプ状の回転子ヨークとこの回転子ヨ
ークに一体的に固着された円筒形の主永久磁石及
び位置検出信号発生用磁石とを含む回転子とより
成る外転回転子形電動機に於いて、上記主永久磁
石の開放端の端面にフランジ状の発電機用永久磁
石をその外径が少なくとも上記カツプ形回転子ヨ
ークの外径とほぼ等しいかそれ以上となるように
設けた事を特徴とする外転回転子形電動機。 (2) 上記位置検出用信号発生磁石が上記カツプ
状の回転子ヨークの外周の開放端に接し回転子軸
の中心に対し対称となる位置に配設されているこ
とを特徴とする実用新案登録請求の範囲第１項記
載の外転回転子形電動機。 (3) 上記円筒形の主永久磁石と発電機用永久磁
石とをプラスチツクスマグネツトで一体的に形成
したことを特徴とする実用新案登録請求の範囲第
１項記載の外転回転子形電動機。[Claims for Utility Model Registration] (1) A cylindrical stator wound with a plurality of stator windings, and a cup-shaped rotor yoke disposed opposite to each other with a gap interposed on the outside of the cylindrical stator. In an external rotor type electric motor comprising a rotor including a cylindrical main permanent magnet and a position detection signal generating magnet integrally fixed to the rotor yoke, the open end of the main permanent magnet An external rotor type electric motor characterized in that a flange-shaped generator permanent magnet is provided on the end face of the rotor yoke so that its outer diameter is at least approximately equal to or larger than the outer diameter of the cup-shaped rotor yoke. (2) Registration of a utility model characterized in that the position detection signal generating magnet is disposed in contact with the open end of the outer periphery of the cup-shaped rotor yoke and is symmetrical with respect to the center of the rotor axis. An external rotor type electric motor according to claim 1. (3) The outer rotor type electric motor according to claim 1, wherein the cylindrical main permanent magnet and the generator permanent magnet are integrally formed of plastic magnets.