发明名称 |
MOTOR, FAN, ROTOR HOLDER AND MANUFACTURING METHOD OF THE SAME |
摘要 |
The manufacturing method of a rotor holder according to the present invention includes a step in which a top plate portion having a substantially discoid shape substantially centered about a central axis, and a side wall portion extending from an outer circumferential edge of the top plate portion are formed simultaneously by feeding a metal plate in a predetermined direction and pressing the metal plate by a die. Also, the present manufacturing method includes a step in which a punched portion is formed at the side wall portion.
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申请公布号 |
US2009001825(A1) |
申请公布日期 |
2009.01.01 |
申请号 |
US20080145528 |
申请日期 |
2008.06.25 |
申请人 |
NIDEC CORPORATION |
发明人 |
HANAOKA SATORU;SUGIYAMA TOMOTSUGU;TABATA SHINYA;TSUKADA TAKASHI |
分类号 |
H02K5/24;H02K15/00 |
主分类号 |
H02K5/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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