Methods and apparatus for inserting coils into dynamoelectric ma

Details Methods and apparatus for inserting coils into dynamoelectric ma Methods and apparatus for inserting coils into dynamoelectric ma

1979-02-23

1980-06-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

295646, 29736, H02K 1506

Patent

active

042054290

ABSTRACT:
Methods and apparatus are disclosed for accommodating at least one winding comprising at least one coil and a stator assembly including a magnetic core having axially extending insulated slots. One method involves confining a portion of leading end turns of the at least one coil and axially inserting side turns of the at least one coil into respective slots of the magnetic core by moving the confined portion of the leading end turns axially through a bore of the magnetic core and by moving transitional segments of the leading end turns axially along their respective slot entrances communicating with the bore. The method further includes guiding the side turns, which hang freely and trail the confined portion of the leading end turns, into their respective slots by displacing the side turns toward the bore prior to their entry into their respective slots. Guiding of the side turns reduces interengagement pressures between an insulation system of the stator assembly and the magnetic core at respective slot entrances communicating with a face of the core. An apparatus is provided for performing the above methods.

REFERENCES:
patent: 2432267 (1947-12-01), Adamson
patent: 2836204 (1958-05-01), Mason
patent: 2934099 (1960-04-01), Mason
patent: 3324536 (1967-06-01), Hill
patent: 3389865 (1968-06-01), Stuckey
patent: 3447225 (1969-06-01), Eminger
patent: 3484923 (1969-12-01), Peters
patent: 3507029 (1970-04-01), Stuckey et al.
patent: 3528170 (1970-09-01), Duff et al.
patent: 3831268 (1974-08-01), Boyd et al.

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