Lundell core type rotary electric machine

Details Lundell core type rotary electric machine Lundell core type rotary electric machine

1998-01-13

1999-05-25

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 122

Patent

active

059072091

ABSTRACT:
A magnet holding member is mounted onto a rotor of an alternator, and holds permanent magnets inserted between the claws of pole cores. The magnet holding member has twelve housing parts each of which has corrugated side surfaces which serve as shock absorbing structures to relieve stress when excessive stress is exerted thereon by the claws of the pole cores. The magnet holding member is manufactured in a state in which the housing parts are arranged in the shape of a belt and are connected with connecting parts. The magnet holding member is bent into an annular shape after the permanent magnets are pressed into the housing parts, and is then mounted onto the rotor. To facilitate ease of manufacture of the magnet holding member, the openings of each housing part face the same direction.

REFERENCES:
patent: 4302693 (1981-11-01), Burgmeier et al.
patent: 4959577 (1990-09-01), Radomski
patent: 5306977 (1994-04-01), Hayashi
patent: 5483116 (1996-01-01), Kusase et al.

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