Manufacturing method utilizing a dual layer winding pattern

Details Manufacturing method utilizing a dual layer winding pattern Manufacturing method utilizing a dual layer winding pattern

2010-02-18

2011-12-06

Cazan, Livius R (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S596000, C310S202000

Reexamination Certificate

active

08069555

ABSTRACT:
A method of manufacturing a three-phase, four pole motor is provided utilizing a dual-layer winding insertion technique. The first and second winding layers are each comprised of the coil groups for six individual poles, two per phase. Within each layer, the two poles per phase are members of a pole pair. In one configuration, each winding layer is comprised of six concentric coil groups in which there is no coil overlap; alternately, each coil group may be comprised of five coils with either the first or second or both outermost coils of each group being double-turn coils; alternately, each coil group may be comprised of five coils with no coil doubling, although there are overlapping coils from different coil groups; alternately, each coil group may be comprised of five coils with no coil doubling and no overlap between different coil groups, although the coils within each coil group are completely lap wound.

REFERENCES:
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patent: 6768411 (2004-07-01), Luttrell
patent: 7252118 (2007-08-01), Reid
W. Ouyang et al., Analysis of Optimal Stator Concentric Winding Patterns Design, Proceedings of the Eighth International Conference on Electrical Machines and Systems, Sep. 27-29, 2005, vol. 1, pp. 94-98.

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