| 摘要 |
PROBLEM TO BE SOLVED: To provide a permanent magnet synchronous motor which can facilitate the improvement of motor capacity and can simplify the coil manufacture and construction work and shorten the term. SOLUTION: In the permanent magnet synchronous motor which has a field constituting P pieces (P: an even number) of magnetic poles and an electromagnetic element where three-phase P-pole armature winding is arranged in n pieces (n: a multiple of 3) of slots provided in the core and in which the average number q of slots for every phase of the armature winding corresponding to one magnetic pole is q=(P+1)/P, the elements coils to come to the same phase within each of the slots are collected into one element coil, based on the winding form where n pieces of element coils are distributed uniformly in multilayer in the slot at large, as armature winding, and besides the interlayer insulation between the element coils is eliminated, conversely the element coils to come to different phases are eliminated thereby putting them in new winding form, whereby out of n pieces of slots, ä3×(P/a)} pieces positioned at equal intervals are made vacant slots, and the number of element coils is made half the number of residual slots. COPYRIGHT: (C)2004,JPO
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