Permanent magnet dynamo-electric machine

Details Permanent magnet dynamo-electric machine Permanent magnet dynamo-electric machine

1995-09-18

1997-10-07

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 91, 310 42, H02K 118

Patent

active

056752040

ABSTRACT:
A low-cost permanent magnet dynamo-electric machine which can prevent an occurrence of a chip in a permanent magnet and is superior in the ease of fabricating the machine. This machine has an elastic catching member consisting of a ring-like portion and a plurality of protruding pieces axially projected from this ring-like portion. This machine further has a yoke, onto the inner circumferential surface of which a plurality of auxiliary poles are welded at an isotropic angular pitch. Further, in this machine, each of permanent magnets has a side surface brought into abutting engagement with the corresponding auxiliary pole. Moreover, the protruding pieces of the elastic catching member are forced into a space between the other side surface of each of the permanent magnets and the adjoining auxiliary pole, so that the plurality of the permanent magnets surround an armature. Furthermore, the ring-like portion of the elastic catching member is put into abutting engagement with a rear end face of each of the permanent magnets.

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patent: 5576588 (1996-11-01), Moribayashi et al.
patent: 5578884 (1996-11-01), Moribayashi et al.

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