Permanent magnet type synchronous motor

Details Permanent magnet type synchronous motor Permanent magnet type synchronous motor

1996-12-26

1999-08-10

Enad, Elvin G.

Electrical generator or motor structure

Dynamoelectric

Rotary

310261, 310262, 310254, 310265, 310269, H02K 2112

Patent

active

059363223

ABSTRACT:
A permanent magnet type synchronous motor has a stator having teeth that are circumferentially aligned, and a rotor disposed radially inward of the stator. The rotor is made up of permanent magnets facing the teeth and mounted on a rotor core having protrusions that protrude radially outward between the permanent magnets. To suppress cogging, the width of the protrusions is determined such that the inter-pole core central angle .theta. is in the range: .theta..sub.MIN <.theta..ltoreq..theta..sub.MIN where .theta..sub.MIN is the angle formed between two straight lines extending from the center of the rotor shaft to midpoints of the two tooth side faces that are the farthest apart from each other among the tooth side faces of teeth facing one of the protrusions, and .theta..sub.MAX is the angle formed between the two straight lines extending from the center of the rotor shaft to the two tooth-head ends that are the farthest apart from each other among the tooth-head ends of teeth that face one of protrusions.

REFERENCES:
patent: 4575652 (1986-03-01), Gogue
patent: 5038065 (1991-08-01), Matsubayashi et al.
patent: 5170083 (1992-12-01), Burgbacher
patent: 5250867 (1993-10-01), Gizaw
patent: 5519266 (1996-05-01), Chitayat
patent: 5631512 (1997-05-01), Kawabata et al.

Affiliated with

Also associated with

Rating

Permanent magnet type synchronous motor 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 type synchronous motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet type synchronous motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1122699