Permanent magnet rotor having magnet retention apparatus

Details Permanent magnet rotor having magnet retention apparatus Permanent magnet rotor having magnet retention apparatus

1991-09-03

1992-05-05

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310262, 29598, H02K 2112, H02K 1514

Patent

active

051110946

ABSTRACT:
A permanent magnet rotor for a brushless machine includes retainer rings to provide additional magnet retention when the magnets are stacked lengthwise along the rotor. The retainer ring seats into a groove formed on the outer surfaces of two magnets where they abut. Furthermore, end rings seated into an undercut area of the outer surface of the magnet edge at the ends of the rotor provide additional magnet retention.

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patent: 4954736 (1990-09-01), Kawamoto et al.
patent: 4973872 (1990-11-01), Dohogne

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