旋转式室温磁制冷机永磁磁路的设计及优化  

Design and Optimization of Permanent Magnetic Circuit for Rotating Room-Temperature Magnetic Refrigerators

作　　者：向志刚[1] 陈云贵[1] 唐永柏[1] 涂铭旌[1] 

机构地区：[1]四川大学,四川成都610065

出　　处：《稀有金属材料与工程》2006年第4期589-592,共4页Rare Metal Materials and Engineering

基　　金：国家"863"资助项目(2002AA324010)

摘　　要：磁制冷的发展除了取决于磁工质的发展外,提供性能优良的外磁场磁路同样具有举足轻重的作用。本文在中空圆柱型磁场源(hollow cylindrical flux source)的基础上,设计出适用于旋转式室温磁制冷机的永磁磁路。在保证工作气隙一定磁感应强度的情况下,通过Ansys软件进行优化,设计出了一种工作气隙中心平均磁感应强度≥1.75T的高场强永磁磁路。相对于未优化的磁路,工作气隙中心平均磁感应强度提高了20%,磁体质量降低了21%。Besides improvement of the magnetic refrigerant materials for development of magnetic refrigeration, an excellent magnetic field source is same important. Based on the hollow cylindrical flux source, a permanent magnetic circuit is designed for rotating room-temperature refrigerator. And after optimization by Ansys software, a permanent magnetic circuit, in which the average magnetic induction strength at the center of the working gap is up to 1.75 T, is got. Relative to the unoptimization magnetic circuit by Ansys software, the average magnetic induction strength in the center gap raise by 20%, and the magnetic circuit weight descend by 21%.

关 键 词：室温磁制冷 磁路设计 优化设计 ANSYS软件 

分 类 号：TM144[电气工程—电工理论与新技术]