Bundle of laminations for an electric machine

Details Bundle of laminations for an electric machine Bundle of laminations for an electric machine

1980-03-25

1982-04-06

Truhe, J. V.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 65, 310214, H02K 900

Patent

active

043238025

ABSTRACT:
The bundle of laminations in an electric generator as motor contains a plurality of lamination stacks arranged in series in an axial direction and a plurality of slots in which are arranged the conductors of the machine winding. In order to improve the dissipation of the heat losses from the bundle of laminations and the winding, laminations are contained in the stacks which have a slot width greater than the width of the conductors and which have on the slot floor a recess of a greater depth. Thus side ducts are formed alongside the conductor which are in connection with the air gap of the machine, and axial cooling channels are formed on the slot floor which open at least on one side into a radial cooling channel. By reversible packing of these laminations, the position of the lateral channels can be altered.

REFERENCES:
patent: 4217511 (1980-08-01), King et al.
H. Sequenz, "Herstellung der Wicklungen electrischer Maschinen", Springer-Verlag, Wien-New York, 1973, p. 159.

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