Rotor of rotary electric machine

Details Rotor of rotary electric machine Rotor of rotary electric machine

2006-08-08

2008-08-05

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216055, C310S263000

Reexamination Certificate

active

07408280

ABSTRACT:
A Lundell type rotor core with a pair of side cores and a magnetic-pole cylindrical portion has a structure in which the magnetic-pole cylindrical portion is mated between both the side cores (also referred to as “pole cores”) in a radial direction at an outside of a field coil wound on a boss portion in the side cores. The magnetic-pole cylindrical portion is made of plural magnetic steel sheets laminated in the axis direction, and is easily deformed rather than both the side cores. The easy deformation characteristic of the magnetic-pole cylindrical portion prevents generation of a gap during the assembling process of the magnetic-pole cylindrical portion and the side cores. Without paying strict dimension control of the components for the rotor core, it is easily possible to prevent any generation of a gap between the side cores and the magnetic-pole cylindrical portion while assembling. It is thereby possible to prevent a deterioration of a magnetic flux flowing in the rotor core.

REFERENCES:
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patent: 6157111 (2000-12-01), Asao
patent: 6356001 (2002-03-01), Nishiyama et al.
patent: 6680557 (2004-01-01), Kusase
patent: 6882081 (2005-04-01), Isoda et al.
patent: 2006/0113861 (2006-06-01), Mukai et al.
patent: 2002-247817 (2002-08-01), None
patent: 2005-27415 (2005-01-01), None

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