Multi-phase brushless motor with reduced number of stator poles

Details Multi-phase brushless motor with reduced number of stator poles Multi-phase brushless motor with reduced number of stator poles

2006-05-31

2009-08-04

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S245000, C310S261100, C310S179000

Reexamination Certificate

active

07569962

ABSTRACT:
An A-phase brushless motor, where A is an integer greater than or equal to 2, includes a stator and a rotor. The stator has q stator poles, where q is an integer greater than or equal to A. The stator poles form S stator pole sets each consisting of A stator poles each of which corresponds to one of A phases, where S is an integer equal to (q/A). The rotor has p rotor poles, where p is an integer greater than or equal to 2, and is so arranged that the rotor poles face the stator poles. Further, in the brushless motor, p≧q, and the stator poles are arranged in a circumferential direction of the motor such that a difference in electrical angular position between any adjacent two of the A stator poles in each of the S stator pole sets is equal to (360°/A).

REFERENCES:
patent: 5610464 (1997-03-01), Asano et al.
patent: 6236133 (2001-05-01), Nishikawa et al.
patent: 6353275 (2002-03-01), Nishiyama et al.
patent: 7288868 (2007-10-01), Tamaki et al.
patent: 2002/0047429 (2002-04-01), Kadoya et al.
patent: 2002/0171308 (2002-11-01), Inayama et al.
patent: 2005/0012419 (2005-01-01), Kometani et al.
patent: 2005/0029890 (2005-02-01), Kadoya et al.
patent: 100 49 883 (2002-04-01), None
patent: 1 207 616 (2002-05-01), None
patent: A-06-261513 (1994-09-01), None
patent: A-8-126273 (1996-05-01), None
patent: A-2003-88011 (2003-03-01), None
patent: A-2004-304928 (2004-10-01), None
patent: WO 02/37643 (2002-05-01), None
Z.Q. Zhu et al.;Influence of Design Parameters on Cogging Torque in Permanent Magnet Machines; IEEE Transactions on Energy Conversion, vol. 15; No. 4; Dec. 2000.
Translation of Office Action by German Patent and Trademark Office, Mar. 26, 2008.
Chinese Office Action Issued Oct. 10, 2008.

Affiliated with

Also associated with

Rating

Multi-phase brushless motor with reduced number of stator poles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-phase brushless motor with reduced number of stator poles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-phase brushless motor with reduced number of stator poles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4123399