Electric motor and method of manufacturing the same

Details Electric motor and method of manufacturing the same Electric motor and method of manufacturing the same

1998-11-04

2000-06-27

Walsh, Donald P.

Winding, tensioning, or guiding

Composite article winding

On externally toothed core

2424333, 29596, H02K 1509

Patent

active

060796596

ABSTRACT:
A method of winding an armature of a four-poled dc motor composed of the armature having (4m+1) slots and a commutator having the same number of commutator segments as the slots. The method employs a first and second coil formers. Each of formers has a pair of guiding surfaces around the armature so that the first coil former is located at a pair of slots to be wound at a m-slot pitch and the second former is located at another pair of slots to be wound at a m-slot pitch. Then, two wires are respectively wound on the first and second coil formers concurrently to be guided into the pairs of slots to be wound respectively. Subsequently, the armature is rotated by an angle 180+180/(4m+1) so that two wires can be wound repeatedly. Thereafter, the armature is rotated, and the wire is wound on the first coil former only to be guided into another pair of slots. This step is repeated three times.

REFERENCES:
patent: 3705459 (1972-12-01), Biddison
patent: 3913220 (1975-10-01), Miller
patent: 4520965 (1985-06-01), Kimura et al.
patent: 5267699 (1993-12-01), Lombardi

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