Method for manufacturing a rotor for synchronous motor

Details Method for manufacturing a rotor for synchronous motor Method for manufacturing a rotor for synchronous motor

1997-01-06

1998-11-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29609, 310 42, 310217, H02K 1504

Patent

active

058291202

ABSTRACT:
A rotor (10) includes a plurality of permanent magnets (14) disposed around a shaft (12) at generally equal intervals, and a plurality of laminated core members (16) disposed between the permanent magnets (14) so as to form magnetic poles. The laminated core members (16) are formed by stacking a plurality of core-laminations (26) made of magnetic materials and an integral core-lamination, and joining them to each other. The integral core-lamination includes a plurality of core-lamination sections each having a shape the same as that of the core-lamination (26), and connecting portions (46) for connecting adjacent core-lamination sections with each other. When the large number of core-laminations (26) and the integral core-lamination are integrally joined by a press-fitting process, the laminated core members (16) are connected with each other in such a relative arrangement of a finished assembly that a space for locating the permanent magnet (14) is defined between the adjacent laminated core members (16), and thus an integral laminated rotor core (48) is formed.

REFERENCES:
patent: 4469970 (1984-09-01), Neumann
patent: 4568846 (1986-02-01), Kapadia
patent: 5010266 (1991-04-01), Uchida et al.
patent: 5338996 (1994-08-01), Yamamoto
patent: 5378953 (1995-01-01), Uchida et al.
JP-A-59 072968 (Fanuc) 25 Apr. 1984. Japan-A-59 059057 (Fanuc) 4 Apr. 1984.

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