Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-08-12
1988-06-28
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310217, 310254, H02K 3700
Patent
active
047541784
ABSTRACT:
A two phase stepper motor having a rotor shaft with a multi-pole rotor and a stator assembly in magnetic flux relationship with the rotor. The stator assembly includes a plurality of sequentially stacked laminations which are each provided with eight stator poles with each immediately successive stator pole having an opposite phase and each being at a 45.degree. index spacing from the immediately adjacent lamination. The stepper motor also contains a multi-phase winding for energizing the stator poles to operate the rotor in successive discrete steps. The stepper motor housing includes first and second end pieces having a pair of triangular cross-section members forming notches therebetween on a first pair of oppositely disposed corners which receive and retain an abutment post on a second pair of oppositely disposed corners from the opposite end piece thereby interlocking the first and second end pieces relative to one another.
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Duggan Donovan F.
MCS, Inc.
Robinson, Jr. Lee C.
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