Integral spring rotor punchings for induction motor

Details Integral spring rotor punchings for induction motor Integral spring rotor punchings for induction motor

H - Electricity

02

K

310/85

H02K 17/16 (2006.01)

Patent

CA 1119651

ABSTRACT OF THE DISCLOSURE A rotor for an induction motor is made of a stack of punchings forming the body of the rotor and including a set of main punchings with integral spring punchings spaced apart in the stack of punchings. The main punchings have conductor receiving slots which preferably are closed at the periphery and have a portion at the radially inward end which extends deeper than is necessary to accommodate a conductor. The integral spring punchings have conductor receiving slots which align with those of the main punchings, and they also have a portion at the radially inward end which extends deeper than necessary to accommodate the conductor. The integral spring punchings have a projecting integral tab at the inner extent of the slot. This spring tab is deflected when the conductor is installed and provides on the conductor an outwardly directed spring force to reduce vibration and rattling.

328380

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