发明名称 Brushless DC motor inner tachometer
摘要 A collectorless DC motor with a horizontal air gap, particularly a low-speed motor for a direct drive of recording and/or reproducing devices has its rotor axle supported within an axial bore of the motor housing, with the motor housing made of plastic. A tachogenerator is disposed about the inner cylinder formed by the rotating permanent magnet ring of the motor. The stator winding and the magnetic return structure are fixedly arranged on the motor housing, which is also provided with bores for attaching the motor or installing it into the device. Obviating of machining sequences, simplification of assembly and direct support of the rotor axle in the motor housing all contribute to a reduction in manufacturing cost.
申请公布号 US4884000(A) 申请公布日期 1989.11.28
申请号 US19880179577 申请日期 1988.04.08
申请人 PAPST MOTOREN KG 发明人 MUELLER, SIEGFRIED
分类号 H02K5/08;H02K5/167;H02K7/20;H02K29/08 主分类号 H02K5/08
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