Reinforced permanent magnet rotor with cast zinc

Details Reinforced permanent magnet rotor with cast zinc Reinforced permanent magnet rotor with cast zinc

1984-04-24

1986-01-14

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310262, 310265, 310211, H02K 2112

Patent

active

045647771

ABSTRACT:
A novel rotor construction is disclosed, in which plural permanent magnets are arranged on the outer periphery of a rotor core, which are protected with a cover, and in which a member is placed at an axial end of the rotor core cast with end rings with a balance weight on the outside thereof. The protective cover protects the outer peripheries of the end rings and dampens the centrifugal force of the balance weight. Projections provided on the outer periphery of the member are located at the center of the permanent magnets to reduce the leakage magnetic fluxes between the permanent magnets.

REFERENCES:
patent: 3154705 (1964-10-01), Essenburg
patent: 3330031 (1967-07-01), Rediger et al.
patent: 4139790 (1979-02-01), Steen
patent: 4144469 (1979-03-01), Miyashita et al.
patent: 4158225 (1979-06-01), Hertz
patent: 4309635 (1982-01-01), Sei
patent: 4403161 (1983-09-01), Miyashita et al.
patent: 4454438 (1984-06-01), Yamashita et al.

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