Ironless and Leakage Free Voice-Coil Motor Made of Bonded Magnets

被引：27
|
作者：
Remy, Mathias [1 ,2 ]
Lemarquand, Guy [1 ]
Castagnede, Bernard [1 ]
Guyader, Gael [2 ]
机构：
[1] Univ Maine, CNRS, Acoust Lab, UMR 6613, F-72085 Le Mans 9, France
[2] Technoctr Renault, F-78288 Guyancourt, France
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 11期
关键词：
Bonded magnets; loudspeakers; magnetic field analytical calculations; permanent magnet rings;
D O I：
10.1109/TMAG.2008.2003401
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper reminds the drawbacks of classical voice-coil motors and presents a way to improve them. Two ironless and leakage free structures are presented, one using traditional sintered magnets and the other one using bonded magnets, giving the pros and cons of each solution. A 2-D analytical model using the Coulombian approach is used to calculate and compare the performances of both structures. Then, in order to evaluate the relevance of the 2-D model for magnet rings, a comparison is done with a 3-D analytical model for several radii of rings.
引用
收藏
页码：4289 / 4292
页数：4
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