대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
- /
- Pages.38-40
- /
- 2008
비대칭 착자에 따른 스핀들 모터 특성에 관한 연구
A Study on Characteristic of Spindle Motor by Unsymmetric Magnetization Distribution in Permanent Magnet
- Park, Jae-Young (Dept. of Electrical Engineering, Hanyang University) ;
- Bae, Jae-Nam (Dept. of Electrical Engineering, Hanyang University) ;
- Kim, Ki-Chan (Dept. of Electrical Engineering, Hanyang University) ;
- Lee, Ju (Dept. of Electrical Engineering, Hanyang University)
- 발행 : 2008.10.23
초록
Distribution of Permanent magnet used in the spindle motor on the ODD is arranged by magnetizer. In general, permanent magnet is putted between yoke and back yoke of magnetizer so that symmetric magnetization distribution. But the magnet has unsymmetric magnetization distribution because of eccentricity of the yoke in mass production. So, in this paper we discuss the effect of asymmetric magnetization distribution on back EMF and cogging torque of the spindle motor.
키워드