Squirrel-cage rotor having end rings of double structure

Details Squirrel-cage rotor having end rings of double structure Squirrel-cage rotor having end rings of double structure

1980-02-01

1982-01-05

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310125, H02K 306

Patent

active

043096352

ABSTRACT:
A squirrel-cage rotor for an induction motor is disclosed. In this rotor, each of end rings electrically connecting the associated ends of the conductor bars received in the slots of the rotor core comprises a first ring portion disposed in contact with the associated end face of the rotor core, and a second ring portion disposed on or coupled to the first ring portion through a member of a magnetic material in the axial direction of the motor, this second ring portion having a sectional area smaller than that of the first ring portion when the section is taken in a direction orthogonal with respect to the axis of the motor.

REFERENCES:
patent: 680792 (1901-08-01), Lamme
patent: 1031802 (1912-07-01), McCollum
patent: 1156364 (1915-10-01), McCollum
patent: 1371233 (1921-03-01), Fries
patent: 1678912 (1928-07-01), McLeod
patent: 1694061 (1928-12-01), Hansen
patent: 2748333 (1956-05-01), Lee

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