发明名称 |
STATOR CORE, METHOD FOR MANUFACTURING THE SAME, AND MOTOR |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stator core that prevents laser penetration portions from extending over adjacent thin sheets in a direction of a rotating axis even if there are sheet thickness errors and laser positioning errors as in conventional stator cores and that maintains electric insulation between the adjacent thin sheets in the direction of the rotating axis. <P>SOLUTION: A stator core 10 has thin sheets 12 that are laminated in a direction of a rotating axis 11 and joined together in a circumferential direction. On an outer or inner edge thereof, each of the thin sheets 12 has a set of laser welding portions 15 and 16 and non-welding portions 17 and 18 that allow laser to be defocused thereon. The laser welding portions 15 and 16 and the non-welding portions 17 and 18 are alternated in the direction of the rotating axis 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012205444(A) |
申请公布日期 |
2012.10.22 |
申请号 |
JP20110069371 |
申请日期 |
2011.03.28 |
申请人 |
DAIKIN IND LTD |
发明人 |
ASANO YOSHINARI;KIFUJI NOBUYUKI;KIKUNO TOMOKAZU |
分类号 |
H02K1/18;H02K15/02 |
主分类号 |
H02K1/18 |
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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