发明名称 |
ROTOR FOR ROTARY ELECTRIC MACHINE AND MOTOR FOR ELECTRIC POWER STEERING |
摘要 |
The hole diameter of a shaft through hole formed in the rotor core is changed in the axial direction, thereby forming a concave portion whose hole diameter is large and a convex portion whose hole diameter is small in the inner circumferential surface of the shaft through hole; the convex portion is arranged at opening portions on both ends of the shaft through hole; a shaft having ridge-shaped convex portions on a press-fitting portion is press-fitted into the shaft through hole to assemble; the number of points of the concave portion is equal to or more than two; and respective diameter dimensions of the concave portion, the convex portion, and the shaft are set to be the diameter of a main body of the shaft<the diameter of the convex portion<the diameter of ridge-shaped convex portions of the shaft<the diameter of the concave portion. |
申请公布号 |
US2014265699(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201214237212 |
申请日期 |
2012.09.20 |
申请人 |
Mitsubishi Electric Corporation |
发明人 |
Morikawa Akihiko;Takashima Kazuhisa;Matsunaga Toshihiro;Miyaoka Masayuki;Yamamura Akihiro;Maeda Hiroki |
分类号 |
H02K1/28 |
主分类号 |
H02K1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Chiyoda-ku, Tokyo JP |