Motor structure having a permanent magnet motor with grooves to

Details Motor structure having a permanent magnet motor with grooves to Motor structure having a permanent magnet motor with grooves to

1996-06-04

2000-06-27

Ponomarenko, Nicholas

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, 310261, H02K 2112, H02K 1100

Patent

active

060810580

ABSTRACT:
A motor structure in a salient pole type DC motor in which torque ripple and cogging torque are reduced, without deceasing motor efficiency, and the torque constant and irregularity of the rotation are reduced. The magnetic flux density distribution of an air gap approaches a sine wave shape by forming a groove in the vicinity of the neutral part (a boundary of an N-pole and an S-pole) of a rotor magnet.

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