Stator for electric motor

Details Stator for electric motor Stator for electric motor

1975-12-17

1977-10-11

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310260, H02K 104

Patent

active

040538001

ABSTRACT:
An electric machine has a stack of stator plates forming a central throughgoing passage defining an axis and having an array of inwardly open and insulated axial grooves in the passage. A plurality of stator coils together form a tubular stator winding have a generally cylindrical central portion lying in the grooves, one end portion formed as a dome with a central aperture at the axis to one axial side of the stack, and another end portion of cylindrical slope to the other axial side of the stack. The domed end portion of the stator coil is secured together and physically stabilized by means of insulating lacquer and/or a domed insulating cage received within the domed end portion and mainly of smaller inside diameter than the outside diameter of a rotor within the stator coil.

REFERENCES:
patent: 1875207 (1932-08-01), Apple
patent: 2445986 (1948-07-01), Adamson

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