基本信息:
- 专利标题： Spindle motor and disk drive apparatus
- 专利标题（中）：主轴电机和磁盘驱动器
- 申请号：JP2010131022 申请日：2010-06-08
- 公开(公告)号：JP2011142793A 公开(公告)日：2011-07-21
- 发明人： SEKII YOICHI , SHIRAI HIROKAZU , MIZUKAMI JUNYA , SAITO KAZUMI , NISHIMURA HIDEKI , HACHIMAN ATSUSHI
- 申请人： Nippon Densan Corp , 日本電産株式会社
- 专利权人： Nippon Densan Corp,日本電産株式会社
- 当前专利权人： Nippon Densan Corp,日本電産株式会社
- 优先权： JP2009278176 2009-12-08; JP2010131022 2010-06-08
- 主分类号： H02K5/24
- IPC分类号： H02K5/24
摘要：
PROBLEM TO BE SOLVED: To provide a spindle motor preventing the lowering of the fixing strength of a magnetic member to a base member and preventing the generation of the deformation of a portion that faces a magnet for the magnetic member, even in use over a long term.
SOLUTION: A stationary portion for the spindle motor 102 includes the base member 131 and the magnetic member 134. The magnetic member 134 is fixed onto the base member 131 at the lower position of the magnet 143. The magnetic member 134 includes an annular plate 134a, arranged to the top face of the base member 131 and a projection 134b, extending in the axial direction from the plate 134a. At least a portion of the projection 134b is pressed into the wall surface of the base member 131. Consequently, the fixing strength in use over a prolonged term is less apt to be made lower than that in fixing by only an adhesive. Since the projection 134b is pressed in, deformation by press-in is less apt to occur in the plate of the magnetic member 134.
COPYRIGHT: (C)2011,JPO&INPIT
摘要（中）：
SOLUTION: A stationary portion for the spindle motor 102 includes the base member 131 and the magnetic member 134. The magnetic member 134 is fixed onto the base member 131 at the lower position of the magnet 143. The magnetic member 134 includes an annular plate 134a, arranged to the top face of the base member 131 and a projection 134b, extending in the axial direction from the plate 134a. At least a portion of the projection 134b is pressed into the wall surface of the base member 131. Consequently, the fixing strength in use over a prolonged term is less apt to be made lower than that in fixing by only an adhesive. Since the projection 134b is pressed in, deformation by press-in is less apt to occur in the plate of the magnetic member 134.
COPYRIGHT: (C)2011,JPO&INPIT
要解决的问题：为了提供一种主轴电动机，其防止了磁性构件对基底构件的固定强度的降低，并且即使在使用中也防止了面向磁性构件的磁体的部分的变形 长期以来。 主轴电动机102的静止部分包括基部构件131和磁性构件134.磁性构件134在磁体143的下部位置处固定到基座构件131上。磁性构件134包括： 环形板134a，布置在基部构件131的顶面上，突出部134b从板134a沿轴向延伸。 凸起134b的至少一部分被压入基部构件131的壁表面。因此，长期使用中的固定强度不如通过仅用粘合剂固定的固定强度低。 由于突起134b被压入，所以通过压入的变形在磁性构件134的板中较不易发生。版权所有（C）2011，JPO＆INPIT