Squirrel-cage rotor for induction motor
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专利名称：Squirrel-cage rotor for induction motor 发明人：Kosei Nakamura,Yoshiyuki Hayashi,Hisashi Maeda
申请号：US08/318885
申请日：19950106
公开号：US05572080A
公开日：
19961105
专利内容由知识产权出版社提供
摘要：A squirrel-cage rotor 10 includes a plurality of slots 16 for accommodating secondary conductors 18 along the outer circumferential surface of a laminated core 14 fixed to a rotor shaft 12. Each slot 16 is defined by a wall having a generally elliptical profile in which a maximum circumferential distance D is larger than a maximum radial distance d in a given section orthogonal to an axis and axially penetrates near the outer circumferential surface of the laminated core 14. The radial inner profile of the slot 16 has a shape in which the tangents on given two points adjacent to the radial innermost portion of each slot wall do not cross at an acute angle in a section orthogonal to the axis, in order to prevent a stress concentration.
申请人：FANUC LTD.
代理机构：Nikaido, Marmelstein, Murray & Oram LLP
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