Electric machine

Details Electric machine Electric machine

2007-01-15

2009-10-20

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S179000, C310S254100

Reexamination Certificate

active

07605514

ABSTRACT:
In a rotating electric machine including a field pole unit having ten magnetic poles (P=10) and an armature having twelve teeth (Q=12), armature coils are wound around the successive teeth with phase relationships and winding polarities arranged in the order of U+/U+, U−/V+, V−/V−, W−/V+, W+/W+, W−/U+, U−/U−, U+/V−, V+/V+, W+/V−, W−/W− and W+/U−, where “U,” “V” and “W” represent three phases of the individual armature coils while “+” and “−” denote winding polarities. Among all harmonic components of magnetomotive forces produced by the armature coils, harmonic components of orders lower than a synchronized component can be reduced in this rotating electric machine. This structure decreases eddy currents flowing in the field pole unit, resulting lower eddy current loss in the field pole unit of the rotating electric machine.

REFERENCES:
patent: 5006745 (1991-04-01), Nishio et al.
patent: 5233253 (1993-08-01), Nishio et al.
patent: 5691590 (1997-11-01), Kawai et al.
patent: 5708316 (1998-01-01), Ishida
patent: 5994802 (1999-11-01), Shichijyo et al.
patent: 6166471 (2000-12-01), Kometani et al.
patent: 6426579 (2002-07-01), Oda et al.
patent: 6657348 (2003-12-01), Qin et al.
patent: 6759780 (2004-07-01), Liu et al.
patent: 6788031 (2004-09-01), Pendell
patent: 6894413 (2005-05-01), Nakano et al.
patent: 7291954 (2007-11-01), Kashihara et al.
patent: 2002/0167242 (2002-11-01), Liu et al.
patent: 2007/0108863 (2007-05-01), Bischof et al.
patent: 2-142350 (1990-05-01), None
patent: 6-90538 (1994-03-01), None
patent: 8-289491 (1996-11-01), None
patent: 2000-197290 (2000-07-01), None
patent: 2001-054271 (2001-02-01), None
patent: WO 03/055045 (2003-07-01), None

Affiliated with

Also associated with

Rating

Electric machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4100215