Brushless motor stator-winding system

Details Brushless motor stator-winding system Brushless motor stator-winding system

1994-05-20

1996-06-11

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310179, 310180, 310258, H02K 300, H02K 112, H02K 1500, H02K 1926

Patent

active

055258506

ABSTRACT:
A stator coil pre-form assembly is comprised of coils held in compression between inner and outer sleeves. The sleeves are made of non-conductive, non-magnetic material which remain a permanent part of the completed structure after winding. Assembling the sleeves around the coils is accomplished by a winding core tool which is inserted through the center of the inner sleeve. The winding core tool has a dome-shaped head with coil-locating tabs at one end and a series of axially-extending pins around the circumference of the opposite end. Coil wires are wound around pairs of axially-opposing tabs and pins. The outer sleeve is then axially force-fitted over the coils. The tooling and preform permit the use of conventional, automated fly-winding equipment.

REFERENCES:
patent: 4063123 (1977-12-01), Herr et al.
patent: 4454439 (1984-06-01), Okamoto et al.
patent: 4563808 (1986-01-01), Lender
patent: 4709180 (1987-11-01), Denk
patent: 5304884 (1994-04-01), Kitajima et al.
patent: 5313131 (1994-05-01), Hibino et al.

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