Study of optimum design on magnetizing fixtures for the ring magnet in spindle motors

Y. D. Yao; Der-Ray Huang; S. Z. Huang; S. J. Wang; T. F. Ying

doi:10.1063/1.369137

Study of optimum design on magnetizing fixtures for the ring magnet in spindle motors

Y. D. Yao^*, Der-Ray Huang, S. Z. Huang, S. J. Wang, T. F. Ying

^*Corresponding author for this work

Institute of Lighting and Energy Photonics

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

The ring magnet magnetization profiles in spindle motor were investigated theoretically by a computer-aided simulation with 2D modeling processes of finite element analysis. Under the three topologies of magnetizing fixture, the current was varied below 15 kA. The double-sided fixture shows a minimum cogging torque near 8 kA. However, the single-sided fixture internal to the magnet shows a maximum torque constant near 8 kA. Experimental data are in good agreement with theoretical calculation. A high efficiency and low cogging torque spindle motor has been achieved by optimum design of the magnetizing fixture to magnetize the ring magnet in a spindle motor.

Original language	English
Pages (from-to)	4904-4906
Number of pages	3
Journal	Journal of Applied Physics
Volume	85
Issue number	8 II A
DOIs	https://doi.org/10.1063/1.369137
State	Published - 15 Apr 1999
Event	Proceedings of the 43rd Annual Conference on Magnetism and Magnetic Materials - Miami, FL, USA Duration: 9 Nov 1998 → 12 Nov 1998

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title = "Study of optimum design on magnetizing fixtures for the ring magnet in spindle motors",

abstract = "The ring magnet magnetization profiles in spindle motor were investigated theoretically by a computer-aided simulation with 2D modeling processes of finite element analysis. Under the three topologies of magnetizing fixture, the current was varied below 15 kA. The double-sided fixture shows a minimum cogging torque near 8 kA. However, the single-sided fixture internal to the magnet shows a maximum torque constant near 8 kA. Experimental data are in good agreement with theoretical calculation. A high efficiency and low cogging torque spindle motor has been achieved by optimum design of the magnetizing fixture to magnetize the ring magnet in a spindle motor.",

author = "Yao, {Y. D.} and Der-Ray Huang and Huang, {S. Z.} and Wang, {S. J.} and Ying, {T. F.}",

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note = "null ; Conference date: 09-11-1998 Through 12-11-1998",

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T1 - Study of optimum design on magnetizing fixtures for the ring magnet in spindle motors

AU - Yao, Y. D.

AU - Huang, Der-Ray

AU - Huang, S. Z.

AU - Wang, S. J.

AU - Ying, T. F.

PY - 1999/4/15

Y1 - 1999/4/15

N2 - The ring magnet magnetization profiles in spindle motor were investigated theoretically by a computer-aided simulation with 2D modeling processes of finite element analysis. Under the three topologies of magnetizing fixture, the current was varied below 15 kA. The double-sided fixture shows a minimum cogging torque near 8 kA. However, the single-sided fixture internal to the magnet shows a maximum torque constant near 8 kA. Experimental data are in good agreement with theoretical calculation. A high efficiency and low cogging torque spindle motor has been achieved by optimum design of the magnetizing fixture to magnetize the ring magnet in a spindle motor.

AB - The ring magnet magnetization profiles in spindle motor were investigated theoretically by a computer-aided simulation with 2D modeling processes of finite element analysis. Under the three topologies of magnetizing fixture, the current was varied below 15 kA. The double-sided fixture shows a minimum cogging torque near 8 kA. However, the single-sided fixture internal to the magnet shows a maximum torque constant near 8 kA. Experimental data are in good agreement with theoretical calculation. A high efficiency and low cogging torque spindle motor has been achieved by optimum design of the magnetizing fixture to magnetize the ring magnet in a spindle motor.

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DO - 10.1063/1.369137

M3 - Conference article

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EP - 4906

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 8 II A

Y2 - 9 November 1998 through 12 November 1998

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