Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-07-26
1994-12-27
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310184, 310206, H02K 300
Patent
active
053768523
ABSTRACT:
In a three-phase four-pole armature winding of the double-layer lap type, three first pole windings of respective phases are dispersively arranged in first divided regions obtained by dividing all the slot region into three equal regions and three second pole windings of the respective phases following the respective first pole windings are dispersively arranged in second divided regions obtained by dividing all the slot region into three equally divided regions. Third and fourth pole windings are dispersively arranged in respective slot regions in the same manner. The first and second divided regions are circumferentially shifted from each other by an electrical angle of 180 degrees. Insertion of all the coils belonging to each of the first to fourth pole windings in all the phases is completed by one coil inserting operation of an automatic coil inserter. Accordingly, the windings of all the poles in all the phases can be completed by the coil inserting operation at the number of times same as the number of windings forming one phase. The coil impedance can be equalized in each of the phases since the pole windings take nearly the same radial position among the phase with respect to the iron core.
REFERENCES:
patent: 3396324 (1968-08-01), Karlsson
patent: 4127787 (1978-11-01), Avinger
patent: 4200817 (1980-04-01), Bartoljic
patent: 4260923 (1981-04-01), Rawcliffe
patent: 4370581 (1983-01-01), Nakamura
patent: 4394596 (1983-07-01), Kimura
patent: 4500806 (1985-02-01), Kanayama
patent: 4672251 (1987-06-01), Broadway
patent: 4847526 (1989-07-01), Takehara
patent: 5231324 (1993-07-01), Kawamura et al.
Kawamura Tsutomu
Takechi Nobuo
Kabushiki Kaisha Toshiba
Skudy R.
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