发明名称 METHODS AND APPARATUS FOR PREVENTING DEMAGNETIZATION IN INTERIOR PERMANENT MAGNET MACHINES
摘要 An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor having a plurality of ferrite magnets arranged in one or more layers, wherein at least one of the layers includes rare earth magnets (e.g., NdFeB magnets) adjacent to the ferrite magnets to prevent or reduce demagnetization.
申请公布号 US2010237735(A1) 申请公布日期 2010.09.23
申请号 US20090406686 申请日期 2009.03.18
申请人 GM GLOBAL TECHNOLOGY OPERATIONS, INC. 发明人 BLISSENBACH ROLF;BIRD JONATHAN
分类号 H02K21/14 主分类号 H02K21/14
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