Modable permanent magnet rotor for optimized field shaping

Details Modable permanent magnet rotor for optimized field shaping Modable permanent magnet rotor for optimized field shaping

1993-04-28

1994-09-06

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310261, 335302, H02K 2112

Patent

active

053451309

ABSTRACT:
A permanent magnet rotor is shaped to optimize the flux distribution thereabout. In one embodiment, cut-outs in the rotor core between magnetic poles forces more of the magnetizing flux, i.e., that which would normally be distributed about the transition zone between the poles, into the main part of the poles, resulting in a substantially trapezoidal flux distribution that is substantially flat over approximately the central 120.degree. of each respective 180.degree. half-cycle thereof. In an alternative embodiment, the rotor core is shaped to be substantially square with rounded edges. Permanent magnet material is molded onto the square-shaped rotor core to form a plurality of magnetic poles such that the flux distribution about the rotor core is substantially sinusoidal.

REFERENCES:
patent: 4748359 (1988-05-01), Yahara
patent: 4954736 (1990-09-01), Kawamoto
patent: 4973872 (1990-11-01), Dohogne
patent: 5065063 (1991-11-01), Watanabe
patent: 5079466 (1992-01-01), Jones
patent: 5170085 (1992-12-01), Shinto
patent: 5220227 (1993-06-01), Ohi
B. S. Rahman et al., "Optimization of Ring Magnet Geometry for Field Harmonic Control in Electric Motors", IEEE Trans. on Magnetics, vol. 28, No. 6, Nov. 1992, pp. 3380 and 3386.

Affiliated with

Also associated with

Rating

Modable permanent magnet rotor for optimized field shaping does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modable permanent magnet rotor for optimized field shaping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modable permanent magnet rotor for optimized field shaping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1331418