Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-12-18
1990-12-11
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310 91, 310218, 310261, 310269, 310270, H02K 106
Patent
active
049773445
ABSTRACT:
A rotor assembly for an electric motor includes a plurality of laminations disposed in a stack, a tension rod extending axially through the rotor lamination stack, and end clamps disposed at each end of the rotor lamiantion stack and secured to the tension rod for compressing the stack to hold the laminations of the stack fixedly in position by compression. A method of stamping rotor and stator laminations for a doubly salient electric motor from a single piece of metal includes the steps of stamping a rotor lamination out of the piece of metal, and stamping the stator lamination out of the piece of metal offset from the stamping of the rotor lamination so that a tooth of the rotor lamiantion stamping is taken from the gap between two teeth of the stator lamination stamping. The centroids of the rotor and stator laminations in their stamped locations in the piece of metal are offset from one another.
REFERENCES:
patent: 538344 (1895-04-01), Penn et al.
patent: 1612321 (1926-12-01), Soderberg
patent: 2558737 (1951-07-01), Darnell
patent: 4642886 (1987-02-01), Muck et al.
Emerson Electric Co.
Skudy R.
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