Laminated body of motor and manufacturing method thereof

Details Laminated body of motor and manufacturing method thereof Laminated body of motor and manufacturing method thereof

2007-08-09

2010-06-01

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216044, C310S216093

Reexamination Certificate

active

07728481

ABSTRACT:
A laminated body of a motor includes: a yoke spirally laminated to form a hollow cylindrical shape; a plurality of teeth protruding from one side edge of the yoke disposed along a longitudinal direction of the yoke and being separated apart at a predetermined distance; a plurality of notch portions on an opposite side edge of the yoke, each of the plurality of notch portions being aligned with each of the plurality of teeth; a stopping protrusion extendingly formed at a protruding end of the teeth in the longitudinal direction of the yoke; and an inclined portion having an inclined surface formed by decreasing a width of the stopping protrusion toward an end of the stopping protrusion so as to reduce cogging torque.

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English language abstract for JP 57-075551 (May 12, 1982).
English language abstract for JP 57-100823 (Jun. 23, 1982).

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