Permanent magnet bonding construction

Details Permanent magnet bonding construction Permanent magnet bonding construction

2007-02-01

2009-12-29

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S154030, C310S154070, C310S154210, C310S156110

Reexamination Certificate

active

07638914

ABSTRACT:
Bonding geometries are disclosed between permanent magnets and steel portions of magnetic assemblies. When employed in permanent magnet motors, this particular bonding construction reduces or even eliminates the loosening of permanent magnets inside of electric motors. The bonding geometry consists of interlocking protrusions and voids at the bonding interface. A bonding agent is employed that may be filled with finely divided iron or other magnetic material. The result is a strong bond between the permanent magnet and steel assembly portions with virtually no loss in overall magnetic properties.

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