Method for securing magnets to a permanent magnet motor shell an

Details Method for securing magnets to a permanent magnet motor shell an Method for securing magnets to a permanent magnet motor shell an

1996-07-11

1999-02-23

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310254, 310218, 29596, H02K 1500, H02K 1503, H02K 1514

Patent

active

058747940

ABSTRACT:
A pair of semicylindrical magnet segments are secured against the inner surface of a motor shell of a permanent magnet motor by wedging an elastic locking element into each space between the magnets. Each locking element has an enlarged head portion that extends beyond opposite ends of the magnet segments, the lock elements maintaining the magnet segments in position, circumferentially, radially and axially, within the motor shell to form a shell-magnet subassembly. An assembly fixture is used to support and align the elements during their assembly. A motor armature, including a commutator, is inserted within the subassembly, and end caps having bearings and brushes are bolted to respective ends of the motor shell to form a complete motor.

REFERENCES:
patent: 2569278 (1951-09-01), Barth
patent: 3083310 (1963-03-01), Tweedy
patent: 4071794 (1978-01-01), Schoen
patent: 4445060 (1984-04-01), Ruhle
patent: 4636107 (1987-01-01), Casler
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patent: 4922149 (1990-05-01), Isozumi et al.
patent: 5073738 (1991-12-01), Tang
patent: 5216306 (1993-06-01), Nakazawa et al.
patent: 5276375 (1994-01-01), Hartel
patent: 5391063 (1995-02-01), Hantle et al.
patent: 5475275 (1995-12-01), Dohogne et al.

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