Rotor of permanent-magnet-type rotating electrical machine

Details Rotor of permanent-magnet-type rotating electrical machine Rotor of permanent-magnet-type rotating electrical machine

2007-08-02

2011-10-04

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156430

Reexamination Certificate

active

08030817

ABSTRACT:
A rotor of a permanent-magnet-type rotating electrical machine of the present invention has a plurality of magnetic poles in point symmetry with respect to a rotation center of a rotor core2. For each of the magnetic poles, there are arranged a permanent magnet3whose product of a coercive force and a magnetizing direction thickness is small and a permanent magnet4whose product of a coercive force and a magnetizing direction thickness is large. The permanent magnet3whose product of a coercive force and a magnetizing direction thickness is small is irreversibly magnetized by a magnetic field created by a current of an armature coil21, to change a total linkage flux amount. This realizes a wide-range variable-speed operation of high output, to provide the rotating electrical machine with a wide operating range and high efficiency.

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Office Action issued Mar. 17, 2011 in Chinese Application No. 200780029854.0 (with English Translation).

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