Permanent magnet rotor for an electrical machine

Details Permanent magnet rotor for an electrical machine Permanent magnet rotor for an electrical machine

1985-05-28

1987-09-22

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 65, 310217, 310261, H02K 122, H02K 1502

Patent

active

046957545

ABSTRACT:
A rotor of an electrical machine comprising pole pieces representing laminated packs of flux-conducting lamellae, and permanent magnets directly contacting the pole terminals, gaps being provided between the flux-conducting lamellae. The gaps are provided by projections on the lamellae themselves. The magnetic flux created by the permanent magnets is conducted through the pole pieces which are usually magnetically unsaturated. Since the latter consists of flux-conducting lamellae between which gaps are provided, the weight and inertia moment of the rotor are reduced without reducing the magnitude of the magnetic flux in the machine.

REFERENCES:
patent: 635739 (1899-10-01), Bergmann
patent: 642599 (1900-02-01), Geisenhoner
patent: 831625 (1906-09-01), McElroy
patent: 3123747 (1964-03-01), Glass
patent: 4510680 (1985-04-01), Miller et al.

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