Winding doing the production mannered null straight angle belt

摘要

PROBLEM TO BE SOLVED: To provide a rotary electric machine employing an edgewise winding in the field coil 3, and to provide a field coil 3 having a high space factor in which unbalance of magnetic flux generated in each magnetic pole 2 can be suppressed.;SOLUTION: Two field coils 3 having two winding portions 3a connected in series through a transient wire portion 3b are formed by winding one flat wire from the opposite sides in the edgewise direction respectively. The transient wire portion 3b connecting the two winding portions 3a crosses a coil end 3c led out from the winding portion 3a of one field coil 3A, and the intersection X is set at a position separated from the winding portion 3a of the field coil 3A not to overlap the winding portion 3a. Since the number of layers at two winding portions 3a attached to respective magnetic poles 2 can be equalized substantially, unbalance of magnetic flux generated in respective magnetic poles 2 can be suppressed. As a result, variation in output performance and aggravation of commutation can be suppressed.;COPYRIGHT: (C)2008,JPO&INPIT