Permanent magnet brushless dc motor having reduced cogging

Details Permanent magnet brushless dc motor having reduced cogging Permanent magnet brushless dc motor having reduced cogging

H - Electricity

02

K

H02K 1/24 (2006.01) H02K 1/27 (2006.01) H02K 21/16 (2006.01) H02K 23/42 (2006.01) H02K 29/00 (2006.01)

Patent

CA 2080149

An improved salient pole configuration for a dynamoelectric machine is disclosed, particularly for a permanent magnet brushless DC motor wherein cogging torque is a problem. One or more apertures or "reluctance holes" are disposed within the head portion of the salient poles in the stator such that the reluctance holes are substantially adjacent but not adjoining the pole face, thereby forming a bridge between the aperture and the pole face. The reluctance hole bridge provides a substantially constant air gap flux density to reduce cogging, while at the same time, provides a low reluctance shunt path for the armature reaction flux around the permanent magnet to improve the demagnetization margin. The efficiency of the machine is also improved.

Affiliated with

Also associated with

Rating

Permanent magnet brushless dc motor having reduced cogging does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Permanent magnet brushless dc motor having reduced cogging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet brushless dc motor having reduced cogging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1678716