公开(公告)号：EP0168055A2

公开(公告)日：1986-01-15

申请号：EP85108707.2

申请日：1985-07-12

申请人： HITACHI, LTD.

发明人： Tani, Tatsuhiro ,  Nagasawa, Hiroyuki ,  Tomite, Tosio ,  Tsubota, Kiyomasa ,  Takahashi, Akira

IPC分类号： H02K15/16

CPC分类号： F16F15/32 ,  H02K7/04 ,  Y10T74/2111

摘要： Two or more imbalance correcting openings (7) with the same cross-sectional configuration are provided in an armature core (1) in parallel to a shaft (2) in such a manner as to be equally spaced on a circumference which is concentrical with the shaft, and members serving as weights (8) are inserted in the adjacent openings to thereby correct any imbalance, the number of adjacent openings being selected to be (n-1/2)+1 or less when the total number n of openings is odd and to be n/2 or less when the total number n is even.

公开(公告)号：EP0168055A3

公开(公告)日：1987-04-01

申请号：EP85108707

申请日：1985-07-12

申请人： HITACHI, LTD.

发明人： Tani, Tatsuhiro ,  Nagasawa, Hiroyuki ,  Tomite, Tosio ,  Tsubota, Kiyomasa ,  Takahashi, Akira

IPC分类号： H02K15/16

CPC分类号： F16F15/32 ,  H02K7/04 ,  Y10T74/2111

摘要： Two or more imbalance correcting openings (7) with the same cross-sectional configuration are provided in an armature core (1) in parallel to a shaft (2) in such a manner as to be equally spaced on a circumference which is concentrical with the shaft, and members serving as weights (8) are inserted in the adjacent openings to thereby correct any imbalance, the number of adjacent openings being selected to be (n-1/2)+1 or less when the total number n of openings is odd and to be n/2 or less when the total number n is even.

公开(公告)号：EP0168055B1

公开(公告)日：1990-11-14

申请号：EP85108707.2

申请日：1985-07-12

申请人： HITACHI, LTD.

发明人： Tani, Tatsuhiro ,  Nagasawa, Hiroyuki ,  Tomite, Tosio ,  Tsubota, Kiyomasa ,  Takahashi, Akira

IPC分类号： H02K15/16

CPC分类号： F16F15/32 ,  H02K7/04 ,  Y10T74/2111